Due to technical limitations and equipment in different environments, as water droplets on the screen, dust and other contamination does not work properly, so the touch screen is also the same as with ordinary machines require regular maintenance. And because the touch screen is a variety of electrical equipment highly integrated touch one machine, so the use and maintenance should pay attention to some of the following questions:
A) before turning on the screen with a soft dry cloth;
2) water or beverage falls screen causes the software to stop the reaction, which is due to water droplets and the finger having similar characteristics, need to wipe the water droplets;
3) Touch screen controller can automatically determine the dust, but too much dust will reduce the sensitivity of the touch screen, Graphic LCD
Display just use a dry cloth to wipe clean the screen;
4) application of glass cleaner dirty fingerprints on the touch screen and oil;
5) strict accordance with procedures and off the power, turn off the power in the reverse order;
6) generate a large number of temporary files on your hard drive, or if you frequently break off without exiting Windows directly, will soon lead to hard disk for errors. Therefore, the need to periodically run Scandisk scan the hard disk error, the application can set the password for the best way to exit the application and Windows re-power;
7) pure touch screen program does not require the mouse cursor, the cursor will only make the user can not concentrate;
8) should choose the most adequate application uses a simple anti-mouse mode, because of the complex model requires sacrifice latency and system resources;
9), as the deteriorating environmental conditions, periodically clean the touch screen to open the nose and the inner surface of the reflective stripes. Specific method is: Open the cover on both sides of the machine, you can find the front nose withhold release latch organs, open the body to release the latch. Lift the front of the nose, you can see the touch screen control card, unplug the touch screen cable, removable head to head back and touch screen. Look carefully at fixed touch screen method, remove the touch screen cleaning, be careful not to use cardboard or hard cloth, Character LCD
Modules do not scratch the reflective stripes. Finally, in reverse order and the original structure will head recovery;
10) belong to man-machine interface touch-screen machine control engineering Copyright, fever than larger, it is necessary to take on the touch screen to cool the body and the surrounding environment measures.
color lcd display module
color lcd display module
2013年9月27日星期五
Touch-screen technology used in industrial control application
I. Overview
Industrial touch screen, industrial display by touch even as one of the men and machines of the intelligent interface. It is an alternative to traditional control buttons and indicator lights intelligent operation display terminal. It can be used to set parameters, display data, monitor device status, to curves / animation and other forms depicting automation control process. More convenient, more expressive, and simplify the control program for the PLC, powerful touch screen to create a friendly interface. As a special touch screen computer peripherals, it is the most simple, convenient, a natural human-computer interaction. It gives the media a new look, is a very attractive new multimedia interactive devices.
Second, the principle of industrial touch screen
Touch screen system generally includes a touch screen controller (card) and touch detection device in two parts. Among them, the touch screen controller (card) The main role of the touch point detection device to receive touch information CONTROL ENGINEERING China Copyright, and convert it into contact coordinates, and then sent to CPU, it also can receive commands sent to the CPU and to be implemented: touch detection device is usually installed in front of the display, the main role is to detect the user's touch position and send it to the touch screen control card.
1 Touch Display Module
Resistive touch screen screen body part is a match with the display surface of the multi-layer composite film by a layer of glass or plexiglass as a grass surface is coated with a layer of transparent conductive layer control engineering Copyright, above and then covered with a layer of outer surface hardening treatment, smooth scratch-resistant plastic layer, an inner surface of which is coated with a transparent conductive layer between the two conductive layers are many small (less than one thousandth inch) of the transparent insulating isolation points separate them .
When a finger touches the screen, usually two conductive layers insulated from each other in touch with a contact point, because of which a conductive layer is connected to the Y-axis direction 5V uniform voltage field, making the detection of the voltage from zero to zero, this is detected by the controller on-state after the A / D conversion, and the voltage value obtained can be compared to 5V Y axis coordinates of the touch point, the coordinates of the same reason, the X-axis This resistive touch screen technology is that all the common basic principles. Resistive type touch screen technology is the key material. Lead resistance screen according to number of hours, divided into four or five lines, six lines, multi-wire resistive touch screen. Resistive touch screens in the glass surfaces were painted two OTI transparent conductive metal oxide layer, the outermost layer of OTI as a conductive coating, the second layer precision through OTI is attached to the network anyway in both directions of +5 V to 0V voltage field, OTI between two layers of transparent to small isolated point separated. When a finger touches the screen,OLED Module two conductive layer OTI will be a contact point, the computer detects the voltage and current simultaneously calculate the location of the touch, the reaction speed of 10-20ms.
Five-wire resistive touch screen of the outer conductive layer using good ductility nickel deposit coating materials, the outer conductive layer due to frequent touch, use good ductility nickel deposit materials in order to prolong life, but the technology costs more expensive. Nickel-gold conductive layer scalability is good, but only for transparent conductors, is not suitable as a resistive touch screen face, because it is high conductivity, and the metal is very difficult to achieve a uniform thickness, suitable for voltage distribution layer, only as a probe layer.
Resistive touch screen is a completely isolated from the outside of the work environment, not afraid of dust and water vapor, which can be used to touch any object that can be used to draw and write, more suitable for industrial control and office use. Resistive touch screen is a common drawback is that because the outer layer of the composite film with plastic material, people do not know or use too much force may scratch the whole touch sharp touch screen scrapped as a result. However, within limits,TFT LCD Module only scratch injured outside the conductive layer, the outer layer of conductive scratch for five-wire resistive touch screen is not related, while the four-wire resistive touch screen is fatal.
2 logic control and communication modules
Logic control module contains the 24V DC input (18-32) power, SDRAM memory and CF memory cards, 10/100BaseT Ethernet ports can be used for file transfer, printing and communication with the programmable controller 232 serial port that can be used to connect mouse, keyboard, or print meter USB port. Embedded in the circuit board inside the CPU chip, charge of the display input, output and processing of communication data. Communication module is responsible for a particular network transport, in order to improve the data transfer rate.
Industrial touch screen, industrial display by touch even as one of the men and machines of the intelligent interface. It is an alternative to traditional control buttons and indicator lights intelligent operation display terminal. It can be used to set parameters, display data, monitor device status, to curves / animation and other forms depicting automation control process. More convenient, more expressive, and simplify the control program for the PLC, powerful touch screen to create a friendly interface. As a special touch screen computer peripherals, it is the most simple, convenient, a natural human-computer interaction. It gives the media a new look, is a very attractive new multimedia interactive devices.
Second, the principle of industrial touch screen
Touch screen system generally includes a touch screen controller (card) and touch detection device in two parts. Among them, the touch screen controller (card) The main role of the touch point detection device to receive touch information CONTROL ENGINEERING China Copyright, and convert it into contact coordinates, and then sent to CPU, it also can receive commands sent to the CPU and to be implemented: touch detection device is usually installed in front of the display, the main role is to detect the user's touch position and send it to the touch screen control card.
1 Touch Display Module
Resistive touch screen screen body part is a match with the display surface of the multi-layer composite film by a layer of glass or plexiglass as a grass surface is coated with a layer of transparent conductive layer control engineering Copyright, above and then covered with a layer of outer surface hardening treatment, smooth scratch-resistant plastic layer, an inner surface of which is coated with a transparent conductive layer between the two conductive layers are many small (less than one thousandth inch) of the transparent insulating isolation points separate them .
When a finger touches the screen, usually two conductive layers insulated from each other in touch with a contact point, because of which a conductive layer is connected to the Y-axis direction 5V uniform voltage field, making the detection of the voltage from zero to zero, this is detected by the controller on-state after the A / D conversion, and the voltage value obtained can be compared to 5V Y axis coordinates of the touch point, the coordinates of the same reason, the X-axis This resistive touch screen technology is that all the common basic principles. Resistive type touch screen technology is the key material. Lead resistance screen according to number of hours, divided into four or five lines, six lines, multi-wire resistive touch screen. Resistive touch screens in the glass surfaces were painted two OTI transparent conductive metal oxide layer, the outermost layer of OTI as a conductive coating, the second layer precision through OTI is attached to the network anyway in both directions of +5 V to 0V voltage field, OTI between two layers of transparent to small isolated point separated. When a finger touches the screen,OLED Module two conductive layer OTI will be a contact point, the computer detects the voltage and current simultaneously calculate the location of the touch, the reaction speed of 10-20ms.
Five-wire resistive touch screen of the outer conductive layer using good ductility nickel deposit coating materials, the outer conductive layer due to frequent touch, use good ductility nickel deposit materials in order to prolong life, but the technology costs more expensive. Nickel-gold conductive layer scalability is good, but only for transparent conductors, is not suitable as a resistive touch screen face, because it is high conductivity, and the metal is very difficult to achieve a uniform thickness, suitable for voltage distribution layer, only as a probe layer.
Resistive touch screen is a completely isolated from the outside of the work environment, not afraid of dust and water vapor, which can be used to touch any object that can be used to draw and write, more suitable for industrial control and office use. Resistive touch screen is a common drawback is that because the outer layer of the composite film with plastic material, people do not know or use too much force may scratch the whole touch sharp touch screen scrapped as a result. However, within limits,TFT LCD Module only scratch injured outside the conductive layer, the outer layer of conductive scratch for five-wire resistive touch screen is not related, while the four-wire resistive touch screen is fatal.
2 logic control and communication modules
Logic control module contains the 24V DC input (18-32) power, SDRAM memory and CF memory cards, 10/100BaseT Ethernet ports can be used for file transfer, printing and communication with the programmable controller 232 serial port that can be used to connect mouse, keyboard, or print meter USB port. Embedded in the circuit board inside the CPU chip, charge of the display input, output and processing of communication data. Communication module is responsible for a particular network transport, in order to improve the data transfer rate.
2013年9月25日星期三
Narrow LCD project implemented several key points
55-inch Ultra Narrow LCD Video Wall LCD55, most Narrow LCD bilateral patchwork of only 5.3mm, LCD splicing hit a current listing of LCD splicing products patchwork narrowest record , but also the first time exceeded the LCD stitching patchwork 6mm or less, which also indicates that LCD display market will usher in another round of development climax.
A complete set of large-screen LCD splicing systems, in addition to the forefront of the screen , the will to involve computers, networks , video surveillance, integrated wiring and numerous peripherals and many other devices , these features also created a large-screen LCD splicing system install complex and difficult characteristics. In fact, in addition to these features , the large-screen display system for engineers not only have excellent engineers and technicians , but also have strong project management and operational capacity , only to have these features in order to respond flexibly to various installation projects .
LCD splicing project proposal : large-screen lcd graphic display splicing system project can be divided into four distinct phases , namely: project planning, preliminary survey , project implementation and post-project . Among these four stages , pre- survey and implementation of the project is very important, if these two stages in the implementation process problems, will seriously affect the progress of the projects and the quality of the projects . Before the implementation of the project -based investigation and implementation of two parts which need to pay attention to what ?
First, the LCD splicing preliminary engineering survey points: pre-construction survey in addition to the construction site in person to understand the investigation , they also need to conduct a detailed and customer communication , and make the overall construction project planning , as these largely determine project cycle length , cost control, and the presentation of the final results , it is necessary to pay special attention.
1, first : Install the equipment on the ground to be flat. Because the entire LCD large screen splicing system weight is very large especially rear stitching, its technology determines its cabinet is very large, and very heavy, so if the floor is ceramic tile installation of equipment , it must first confirm whether it can withstand such weight , Graphic LCD Module preferably fixed on another device antistatic floor on the ground, in order to ensure long-term ground by heavy deformation.
2 , followed by the wiring : LCD large screen splicing system wiring, power lines and signal lines to be separated in order to avoid unnecessary interference with the signal ; another large LCD screen according to the specifications , the cabinet position , the signal source location is calculated required for a variety of cable lengths , number of joints and the signal line names. But also confirm with the customer , project pipeline channel is available to meet the actual needs, in order to continue follow-up work .
3 , ambient light : Because LCD splicing screen brightness of the product is relatively limited, if the system's ambient light is too bright , the picture effect would have been affected . Under normal circumstances, required within 4 meters in front of the screen is dark , it is best not to install fluorescent tubes can be installed concealed downlights , light to shine directly on the screen can not and must have a separate switch. In addition to the installation of tube lights and large screen devices in parallel , try to make the work area has adequate lighting , but will not have a significant impact on the screen , the screen may be near the incoming light ( such as windows ) , if necessary, to be blocked while the device is running best to turn off the light , in order to ensure normal operation of equipment .
4, the framework requires : Considering the LCD splicing screen installation and ease of maintenance , the frame must be removable edging edging . Outside the framework of the fight away from the wall along the side ( up and down about four sides ) set aside about 25mm clearance on each side , a large video wall should be increased according to the number of columns margin . In addition , in order to post into the box maintenance, repair channel principle is not less than 1.2m wide. Removable side bar to hold the edge of the screen 3-5mm is appropriate, in the box and the screen is fully in place, and finally fixed removable trim.
5 , air-conditioning ( depending on the project may be ) : In the pit lane , the need to install air-conditioning or outlet, ensure that the ventilation equipment in good condition . Outlet should be located as far away from LCD Video Wall (1m or so good ) , and the outlet box directly facing the wind can not blow hot and cold in order to avoid uneven screen damage .
A complete set of large-screen LCD splicing systems, in addition to the forefront of the screen , the will to involve computers, networks , video surveillance, integrated wiring and numerous peripherals and many other devices , these features also created a large-screen LCD splicing system install complex and difficult characteristics. In fact, in addition to these features , the large-screen display system for engineers not only have excellent engineers and technicians , but also have strong project management and operational capacity , only to have these features in order to respond flexibly to various installation projects .
LCD splicing project proposal : large-screen lcd graphic display splicing system project can be divided into four distinct phases , namely: project planning, preliminary survey , project implementation and post-project . Among these four stages , pre- survey and implementation of the project is very important, if these two stages in the implementation process problems, will seriously affect the progress of the projects and the quality of the projects . Before the implementation of the project -based investigation and implementation of two parts which need to pay attention to what ?
First, the LCD splicing preliminary engineering survey points: pre-construction survey in addition to the construction site in person to understand the investigation , they also need to conduct a detailed and customer communication , and make the overall construction project planning , as these largely determine project cycle length , cost control, and the presentation of the final results , it is necessary to pay special attention.
1, first : Install the equipment on the ground to be flat. Because the entire LCD large screen splicing system weight is very large especially rear stitching, its technology determines its cabinet is very large, and very heavy, so if the floor is ceramic tile installation of equipment , it must first confirm whether it can withstand such weight , Graphic LCD Module preferably fixed on another device antistatic floor on the ground, in order to ensure long-term ground by heavy deformation.
2 , followed by the wiring : LCD large screen splicing system wiring, power lines and signal lines to be separated in order to avoid unnecessary interference with the signal ; another large LCD screen according to the specifications , the cabinet position , the signal source location is calculated required for a variety of cable lengths , number of joints and the signal line names. But also confirm with the customer , project pipeline channel is available to meet the actual needs, in order to continue follow-up work .
3 , ambient light : Because LCD splicing screen brightness of the product is relatively limited, if the system's ambient light is too bright , the picture effect would have been affected . Under normal circumstances, required within 4 meters in front of the screen is dark , it is best not to install fluorescent tubes can be installed concealed downlights , light to shine directly on the screen can not and must have a separate switch. In addition to the installation of tube lights and large screen devices in parallel , try to make the work area has adequate lighting , but will not have a significant impact on the screen , the screen may be near the incoming light ( such as windows ) , if necessary, to be blocked while the device is running best to turn off the light , in order to ensure normal operation of equipment .
4, the framework requires : Considering the LCD splicing screen installation and ease of maintenance , the frame must be removable edging edging . Outside the framework of the fight away from the wall along the side ( up and down about four sides ) set aside about 25mm clearance on each side , a large video wall should be increased according to the number of columns margin . In addition , in order to post into the box maintenance, repair channel principle is not less than 1.2m wide. Removable side bar to hold the edge of the screen 3-5mm is appropriate, in the box and the screen is fully in place, and finally fixed removable trim.
5 , air-conditioning ( depending on the project may be ) : In the pit lane , the need to install air-conditioning or outlet, ensure that the ventilation equipment in good condition . Outlet should be located as far away from LCD Video Wall (1m or so good ) , and the outlet box directly facing the wind can not blow hot and cold in order to avoid uneven screen damage .
Large-screen display technology advantage analysis
From space, time limits video conferencing has become the most popular business conference modes, large-screen display solutions through convenient Internet transmission lines and commercial LCD display with high-definition multimedia display device , the ultra-high -resolution images and CD -quality stereo audio, and real-time transmission environmental conditions , Character LCD
Modules so that participants feel immediate and interactive communication , provide the user with an immersive "face to face " experience .
Currently , video conferencing solutions have been widely used in many Fortune 500 companies , effectively saving enterprise travel costs, so that the work efficiency of decision making has been effectively improved.
In recent years , the domestic market, large-screen mosaic wall , the LCD display wall products meteoric rise to become the industry is a major bright spot. LCD splicing technology, as a new large-screen application technology categories , and its unique features are becoming market applications to change the traditional pattern of tiled display great strength . Taken to prison + control room, Graphic LCD Module into the commercial center for the characteristics of the liquid crystal display wall products are becoming more widely achieved within the traditional DLP Video Wall can not do all sorts of miracles.
Currently , video conferencing solutions have been widely used in many Fortune 500 companies , effectively saving enterprise travel costs, so that the work efficiency of decision making has been effectively improved.
In recent years , the domestic market, large-screen mosaic wall , the LCD display wall products meteoric rise to become the industry is a major bright spot. LCD splicing technology, as a new large-screen application technology categories , and its unique features are becoming market applications to change the traditional pattern of tiled display great strength . Taken to prison + control room, Graphic LCD Module into the commercial center for the characteristics of the liquid crystal display wall products are becoming more widely achieved within the traditional DLP Video Wall can not do all sorts of miracles.
2013年9月22日星期日
LCD LFD large-screen system technology advantages
LCD46H splicing LCD large screen display system is designed according to user needs . It the most remarkable SAMSUNG DID LCD high definition ultra narrow digital display technology, splicing technology , multi-screen applications such as image processing technology integrated into one , forming a high-brightness , high- definition, high intelligent control , 192x64 lcd methods of operation advanced large screen display system .
Through this LCD large screen display system can achieve the production dispatching system computer image and video image information together, show that the formation of a fully functional, technologically advanced displays images and information management control systems for video surveillance, multimedia display , production , scheduling, monitoring needs , and complete replace the existing analog screen for public display,lcm module monitor , manage to provide an interactive and flexible system to adapt to the evolving public displays , meetings, production, scheduling work . In order to make timely judgments and processing, real-time monitoring and centralized control.
We designed this LCD large screen display system has a number of important industries in the domestic large-screen display applications system use, and the industry and users alike !
2013年9月18日星期三
True green LED TV
LED backlighting and edge light is an important factor in the rise of the implementation of the EU RoHS Directive . The Directive stipulates that from 1 July 2006 onwards, the EU member states to eliminate sales of electronic devices in the lead, cadmium, mercury , OLED Module hexavalent chromium , polybrominated biphenyls and polybrominated diphenyl ethers and other substances. And Mercury is CCFL lamps and other types of fluorescent lighting the main ingredients. LED lights then do not use mercury.
In power consumption , compared with the ordinary CRT TV , flat panel TV power consumption considerably , many consumers of the energy situation on TV are quite concerned . It is understood that in 2008 sales of 12 million flat-screen TV , such as by working four hours a day every TV , lcd module every year on the need to consume 2.4 billion kWh of electricity , the equivalent of several large sum of annual generation capacity of thermal power plants .
The LED brightness can be carried out with the initiative to adjust the screen brightness , energy efficient compared to LCD TVs can reach more than 30% . This performance in some dark scenes images , only need to adjust the backlighting of the necessary area ( on the screen showed black or dark part ) local lighting , which can to show you a chiaroscuro effect of natural high-quality images .
In power consumption , compared with the ordinary CRT TV , flat panel TV power consumption considerably , many consumers of the energy situation on TV are quite concerned . It is understood that in 2008 sales of 12 million flat-screen TV , such as by working four hours a day every TV , lcd module every year on the need to consume 2.4 billion kWh of electricity , the equivalent of several large sum of annual generation capacity of thermal power plants .
The LED brightness can be carried out with the initiative to adjust the screen brightness , energy efficient compared to LCD TVs can reach more than 30% . This performance in some dark scenes images , only need to adjust the backlighting of the necessary area ( on the screen showed black or dark part ) local lighting , which can to show you a chiaroscuro effect of natural high-quality images .
2013年9月14日星期六
Large-screen LCD splicing Security Industry Solutions
With the large screen display applications more widely, but for different areas of the terminal display device requirements are different , resulting in industry- differentiated demand for more and more significant . So, faced with different industries to provide targeted solutions is becoming more important , professional sound solutions for the industry has naturally become a major competitive market between manufacturers one of the factors .
For LCD splicing products,TFT LCD Display by virtue of its high-definition display, flexible mosaic pattern , thin body , long life and energy-saving environmental protection and many other advantages , the relatively high requirements for patchwork of small fields monitoring collar favored. SME 's command and control the contents of the main display video signal based, for the integrity of the screen is not very high , more is to consider how to use the LCD splicing alternative to upgrade the old-fashioned CRT display device , as a relatively cost-effective LCD splicing high, so the LCD splicing in the field of security applications are more and more attention .
For the application of the security industry large-screen, displays the contents of the security industry due mainly to monitor the main screen , monitor screen is relatively independent , so the picture is not roaming and superimposed strong demand , of course, some of these more complex security monitoring block is indispensable . In general, small and medium sized project is no need to configure the splice . On the other hand ,COG LCD Display a relatively large screen of the security industry , and often have been encoded preceding signal into a digital signal, if the big screen on even before then decoded into an analog signal , which will reduce the display , will increase the cost of equipment . For the application of the security industry big -screen feature , manufacturers have to set its own brand of proven solutions , it can well meet the needs of customers the security field .
With LCD splicing technology continues to mature and the costs continue to decline , LCD splicing positioning become more " people" , and LCD splicing system incorporates more networks, smart technology, continuously expand the field of application , the future market prospects are very broad .
For LCD splicing products,TFT LCD Display by virtue of its high-definition display, flexible mosaic pattern , thin body , long life and energy-saving environmental protection and many other advantages , the relatively high requirements for patchwork of small fields monitoring collar favored. SME 's command and control the contents of the main display video signal based, for the integrity of the screen is not very high , more is to consider how to use the LCD splicing alternative to upgrade the old-fashioned CRT display device , as a relatively cost-effective LCD splicing high, so the LCD splicing in the field of security applications are more and more attention .
For the application of the security industry large-screen, displays the contents of the security industry due mainly to monitor the main screen , monitor screen is relatively independent , so the picture is not roaming and superimposed strong demand , of course, some of these more complex security monitoring block is indispensable . In general, small and medium sized project is no need to configure the splice . On the other hand ,COG LCD Display a relatively large screen of the security industry , and often have been encoded preceding signal into a digital signal, if the big screen on even before then decoded into an analog signal , which will reduce the display , will increase the cost of equipment . For the application of the security industry big -screen feature , manufacturers have to set its own brand of proven solutions , it can well meet the needs of customers the security field .
With LCD splicing technology continues to mature and the costs continue to decline , LCD splicing positioning become more " people" , and LCD splicing system incorporates more networks, smart technology, continuously expand the field of application , the future market prospects are very broad .
Large-screen LCD splicing debugging method correctly interpret
LCD splicing both individually as a monitor , they can assemble into large screen use . According to different needs and achieve big variable is also variable small Variety large screen features: a single split -screen display , single-screen alone, any combination of display , full-screen LCD stitching, double stitching LCD splicing screen , vertical screen display, image borders optional compensation or cover , support for digital signal roaming, zooming stretching, cross-screen display , a variety of plans to set up and run display , full HD signal real-time processing . LCD splicing is a complete finished product, ie, hang with , installation is as simple as building blocks , single or multiple LCD splicing are very simple to use and install . lcd module stitching around the edges only 9mm width , surface protective layer also with tempered glass , built-in smart temperature alarm circuit and the unique " fast casual" cooling system. Everything, not only adapt to the digital signal input , the analog signal support is also very unique . LCD splicing series of products using the world's most unique and cutting-edge digital processing technology, allowing users to truly experience the full HD screen effect .
So, so perfect large screen display system really that simple? Answer is no, how to properly debug LCD splicing screen is not as easy as people think .
Normally, LCD splicing system hardware installation does not have a lot of time is also relatively simple , and debugging more complex compared to the latter . Video wall system debugger, the image appears unclear. If the display is not satisfactory , especially in low light , blurred edges of the image (the source resolution is too high) stack aliasing interference fringe image sense ( or drop-frame ) , the result is: a liquid crystal mosaic image does not contain a clear phenomenon. Immediately to determine whether the product is not available. Image, control products, such as system , matrix switchers , splitters, signal transmission cable , transmission, processing and display display terminal , DVD, video cameras, computers , etc., etc. Displayed video source.
Exclude the need to pay attention to two points:
The first : to check the first question bear certain period of time , checks will be deleted once the issue is resolved , you can save time in other parts of the checks can be . First of all, one by one, the only way to form a terminal display resolution and signal source display resolution, not only for point to point , and if this problem is not solved, are excluded from all devices on it to verify the video signal , graphic lcd modules If you want to reach the end dependent on the adaptation or the display format can be greatly improved the brightness of the image , or replace the device's display terminal zoom you can increase conversion device such as the use of that change the nature of the signal , the video signal can be improved VGA video signal .
Second, please see the body to make the losses to a minimum standard distance range image and signal source impedance bandwidth between the matrix switcher. Finally, the focus and convergence of the display device is normal , the signal processing circuit is good. The most important are as follows. High ground , reliable, good line of construction , so that the signal ground , solid interface cables neatly separated , and the force and strict as power, signal lines, such as UPS, AC power connectors at both ends of the total number of tags and manage a simple test .
Analysis: according to the symptoms , if not synchronized , synchronous interface cable, and transmission equipment , control and display terminal synchronizing signal source frequency range of the inspection point. By analyzing the test time is too long, the picture is too small , ghost , transmission cables , to confirm whether it is a solution to increase the signal amplifier and other equipment, or lane changes . Concentrated bad, you can adjust the display terminal.
So, so perfect large screen display system really that simple? Answer is no, how to properly debug LCD splicing screen is not as easy as people think .
Normally, LCD splicing system hardware installation does not have a lot of time is also relatively simple , and debugging more complex compared to the latter . Video wall system debugger, the image appears unclear. If the display is not satisfactory , especially in low light , blurred edges of the image (the source resolution is too high) stack aliasing interference fringe image sense ( or drop-frame ) , the result is: a liquid crystal mosaic image does not contain a clear phenomenon. Immediately to determine whether the product is not available. Image, control products, such as system , matrix switchers , splitters, signal transmission cable , transmission, processing and display display terminal , DVD, video cameras, computers , etc., etc. Displayed video source.
Exclude the need to pay attention to two points:
The first : to check the first question bear certain period of time , checks will be deleted once the issue is resolved , you can save time in other parts of the checks can be . First of all, one by one, the only way to form a terminal display resolution and signal source display resolution, not only for point to point , and if this problem is not solved, are excluded from all devices on it to verify the video signal , graphic lcd modules If you want to reach the end dependent on the adaptation or the display format can be greatly improved the brightness of the image , or replace the device's display terminal zoom you can increase conversion device such as the use of that change the nature of the signal , the video signal can be improved VGA video signal .
Second, please see the body to make the losses to a minimum standard distance range image and signal source impedance bandwidth between the matrix switcher. Finally, the focus and convergence of the display device is normal , the signal processing circuit is good. The most important are as follows. High ground , reliable, good line of construction , so that the signal ground , solid interface cables neatly separated , and the force and strict as power, signal lines, such as UPS, AC power connectors at both ends of the total number of tags and manage a simple test .
Analysis: according to the symptoms , if not synchronized , synchronous interface cable, and transmission equipment , control and display terminal synchronizing signal source frequency range of the inspection point. By analyzing the test time is too long, the picture is too small , ghost , transmission cables , to confirm whether it is a solution to increase the signal amplifier and other equipment, or lane changes . Concentrated bad, you can adjust the display terminal.
2013年9月12日星期四
LCD large screen display wall of the viewing angle
LCD large screen and large-screen CRT display wall , there is still a shortcoming, which is tilted at an angle if the user will not see the image on the screen . For this early use of laptop users must have some experience, using a laptop computer , front screen image is the most clear , if angle is tilted to a certain angle will see the screen image . Up to what point can see the screen images , this angle is the viewing angle. Viewing angle can be divided into horizontal viewing angle and vertical viewing angle . For this shortcoming , LCD manufacturers have made the development of a great effort , and now the LCD viewing angle can reach 140 degrees , in fact, no one actually so inclined angle to see the screen . For professional users, always facing the screen majority.
As for the resolution, brightness , contrast, in terms of these indicators , LCD monitors and CRT monitors basically the same. If the lcd module on the technical indicators perfectly acceptable , and that the only consideration is the price , just a year ago , big screen LCD 's price is unacceptable , the hundreds of million, and now with the LCD mass production , cost reduction , LCD has come to a reasonable price , and with 17 -inch LCD monitor , it is now the price is about 4500 yuan or so, here we should not ignore a problem, that is the same as LCD monitors unlike CRT monitors there is an effective display area , said 17-inch LCD monitor effective display area is 17 inches, which is 19-inch CRT monitor with an effective display area is basically the same . Now 19 inch CRT market price of about 3,000 yuan, the gap between 1,500 yuan, 1,500 yuan in exchange for which zero radiation , screen flicker , takes a long time glued to the screen for the graphics / video design, publishing and other professional field in terms of users is how to enjoy it !
LCD large screen display wall in recent years gradually into people's lives and work of the new display carrier. Due to its stylish, low radiation , energy-saving , space-saving , splicing gap is small, image stabilization, clearly , by the majority of users. With the market launch , the decline in prices , so that more users have the opportunity to use this product. Therefore, using OLED Module wall units , all walks of life began to be promoted and applied . Now has become a large-scale exhibitions , public places, video conferencing, multi-purpose hall , television , entertainment, television monitors and other places essential to the display device.
As for the resolution, brightness , contrast, in terms of these indicators , LCD monitors and CRT monitors basically the same. If the lcd module on the technical indicators perfectly acceptable , and that the only consideration is the price , just a year ago , big screen LCD 's price is unacceptable , the hundreds of million, and now with the LCD mass production , cost reduction , LCD has come to a reasonable price , and with 17 -inch LCD monitor , it is now the price is about 4500 yuan or so, here we should not ignore a problem, that is the same as LCD monitors unlike CRT monitors there is an effective display area , said 17-inch LCD monitor effective display area is 17 inches, which is 19-inch CRT monitor with an effective display area is basically the same . Now 19 inch CRT market price of about 3,000 yuan, the gap between 1,500 yuan, 1,500 yuan in exchange for which zero radiation , screen flicker , takes a long time glued to the screen for the graphics / video design, publishing and other professional field in terms of users is how to enjoy it !
LCD large screen display wall in recent years gradually into people's lives and work of the new display carrier. Due to its stylish, low radiation , energy-saving , space-saving , splicing gap is small, image stabilization, clearly , by the majority of users. With the market launch , the decline in prices , so that more users have the opportunity to use this product. Therefore, using OLED Module wall units , all walks of life began to be promoted and applied . Now has become a large-scale exhibitions , public places, video conferencing, multi-purpose hall , television , entertainment, television monitors and other places essential to the display device.
2013年9月10日星期二
Soft edge fusion splicing system
Soft edge fusion splicing system is a complex system engineering , usually form a complete set of soft edge fusion splicing system requires the following equipment:
1 screen : the screen to the audience the most intuitive visual impact, screen selection is essential. First make sure the entire screen is seamless , we can ensure picture perfect display .
2 Projector: projector screen to the big screen directly affects the quality of the display, is also very important , so careless . low temperature 128x64 lcd Maximize the use of 3-DMD projector technology to ensure a good color reproduction . End 3-LCD projector can be used, but in the color consistency adjustment above comparison takes a lot of time .
3 Soft Edge fusion splicing processor : soft edge fusion splicing processor determines a large screen display main content and speed of the processor is good or bad , the signal processing speed of the source , the picture resolution , the quality of soft edge fusion , have a role can not be underestimated .
4 Signal processing apparatus :Character LCD Modules a signal processing device includes a signal source type of conversion, the signal switching , signal amplification and transmission , for large -screen display is very important.
5 . Centralized control equipment : large-screen display system, a wide variety of equipment , number of projectors , matrix number larger than the number of signal sources , centralized control device can better help you quickly deal with the switching signal selection , convenience efficient operation of the control device , the rapid increase in work efficiency and accuracy.
6 Peripherals : Peripheral devices include signal source desktop access systems , cables , connectors , cabinets, power supply and so on.
1 screen : the screen to the audience the most intuitive visual impact, screen selection is essential. First make sure the entire screen is seamless , we can ensure picture perfect display .
2 Projector: projector screen to the big screen directly affects the quality of the display, is also very important , so careless . low temperature 128x64 lcd Maximize the use of 3-DMD projector technology to ensure a good color reproduction . End 3-LCD projector can be used, but in the color consistency adjustment above comparison takes a lot of time .
3 Soft Edge fusion splicing processor : soft edge fusion splicing processor determines a large screen display main content and speed of the processor is good or bad , the signal processing speed of the source , the picture resolution , the quality of soft edge fusion , have a role can not be underestimated .
4 Signal processing apparatus :Character LCD Modules a signal processing device includes a signal source type of conversion, the signal switching , signal amplification and transmission , for large -screen display is very important.
5 . Centralized control equipment : large-screen display system, a wide variety of equipment , number of projectors , matrix number larger than the number of signal sources , centralized control device can better help you quickly deal with the switching signal selection , convenience efficient operation of the control device , the rapid increase in work efficiency and accuracy.
6 Peripherals : Peripheral devices include signal source desktop access systems , cables , connectors , cabinets, power supply and so on.
TFT-LCDCELL process diagrams
TFT-LCDCell manufacturing process of the array after the process, which is based on the Array front glass substrate, a glass substrate and color filter combined and inserted between the two glass substrates a liquid crystal (LC). Main processes include: cleaning, orientation film coated PI layer, friction orientation, printed plastic frame and pad printing Silver Point spray powder, assembly, cutting & lobes, filling liquid crystal detection.
First, the substrate using the lotion, brush, Character LCD Module ultrasound, IR, UV and other devices, the above remove particulates and oil, in order to ensure the cleanliness of the substrate condition.
That has formed on the substrate layer washed 500Ao ~ 1200Ao (0.05μm ~ 0.12μm) PI films uniform. By rubbing the alignment grooves on the PI film manufacturing orientation of the liquid crystal sequentially ordered.
After using the screen printing method, will be required to transfer to the CF frame plastic substrate to provide CF / ITO substrate is then necessary to make the Edge with plastic box. The agent is spread evenly spaced on the substrate for maintaining uniform spacing between the upper and lower substrates.
In stage heating, prompting the box on the CF substrate plastic softening of position after completion of the bit to impose pressure, plastic box by the CF and the ITO substrate adhesion, and finally do the right position fix, complete assembly work. The substrate assembly complete stack neatly sealed with the fixture, to impose a uniform pressure, 320x240 lcd display and into sealed with high temperature baking furnace, the substrate temperature can be maintained 150 ℃, 90 minutes or more to ensure that the sealant is fully cured spaced molding.
The completion of the assembly sealed with glass panels, according to the size of the necessary requirements to breed diamond knife, cut out the cut marks on the glass cutting / lobes.
Panel into the empty vacuum tank, exhaust after impregnation liquid crystal injection port, nitrogen breaking vacuum, using a pressure difference and the capillarity effect, so that the liquid crystal injected into an empty panel.
Attached to the elliptical polarizer on the panel below. Create contrast with its polarizing and phase difference plate compensation chromogenic make the picture clear.
First, the substrate using the lotion, brush, Character LCD Module ultrasound, IR, UV and other devices, the above remove particulates and oil, in order to ensure the cleanliness of the substrate condition.
That has formed on the substrate layer washed 500Ao ~ 1200Ao (0.05μm ~ 0.12μm) PI films uniform. By rubbing the alignment grooves on the PI film manufacturing orientation of the liquid crystal sequentially ordered.
After using the screen printing method, will be required to transfer to the CF frame plastic substrate to provide CF / ITO substrate is then necessary to make the Edge with plastic box. The agent is spread evenly spaced on the substrate for maintaining uniform spacing between the upper and lower substrates.
In stage heating, prompting the box on the CF substrate plastic softening of position after completion of the bit to impose pressure, plastic box by the CF and the ITO substrate adhesion, and finally do the right position fix, complete assembly work. The substrate assembly complete stack neatly sealed with the fixture, to impose a uniform pressure, 320x240 lcd display and into sealed with high temperature baking furnace, the substrate temperature can be maintained 150 ℃, 90 minutes or more to ensure that the sealant is fully cured spaced molding.
The completion of the assembly sealed with glass panels, according to the size of the necessary requirements to breed diamond knife, cut out the cut marks on the glass cutting / lobes.
Panel into the empty vacuum tank, exhaust after impregnation liquid crystal injection port, nitrogen breaking vacuum, using a pressure difference and the capillarity effect, so that the liquid crystal injected into an empty panel.
Attached to the elliptical polarizer on the panel below. Create contrast with its polarizing and phase difference plate compensation chromogenic make the picture clear.
Three-dimensional image display applications
Currently three-dimensional image display is mainly used in the workstation (workstation), comics, cartoons and other animation, medical purposes, educational purposes as well as aviation, automotive simulation teaching, game console and other fields. Such as medical uses stereoscopic endoscopy, stereoscopic microscopes, the use of surgical guidance system, the use of CT, MRI medical diagnosis, visual function tests, Character LCD
Modules medical education, medical training and so on.
Although the new generation of three dimensional stereoscopic display resolve many shortcomings, and dramatically increase the viewing stereoscopic range, but it also faces inadequate consumer awareness, expensive, single use only face challenges such as practical. For single use issues, the current plan has drawn more toward the direction of exploring, developing multi-user stereoscopic display,Serial Lcd Display Module in addition to production of precision, mass production and ripple control is one of the items to be overcome. Three-dimensional images expected future market will be with the software and hardware technology continues to expand, which means keep abreast of the pulse of the market, the timely provision of related technologies become more important.
Although the new generation of three dimensional stereoscopic display resolve many shortcomings, and dramatically increase the viewing stereoscopic range, but it also faces inadequate consumer awareness, expensive, single use only face challenges such as practical. For single use issues, the current plan has drawn more toward the direction of exploring, developing multi-user stereoscopic display,Serial Lcd Display Module in addition to production of precision, mass production and ripple control is one of the items to be overcome. Three-dimensional images expected future market will be with the software and hardware technology continues to expand, which means keep abreast of the pulse of the market, the timely provision of related technologies become more important.
订阅：
博文 (Atom)