LCD module Precautions

A : protective film
LCD module surface affixed with a protective film to prevent the display surface contamination during assembly , before the end of the whole assembly must not be thrown off .
Two: to prevent electrostatic
LCD module Embedded LCD driver chip is massive COMS circuit can easily be electrostatic breakdown , while the electrostatic breakdown is irreparable , so in operation , assembly and use should prevent static electricity , it must be noted :
1 : You can not cheat hand free to touch LCD driver chip and circuit board modules , if you must contact must take anti-static wrist strap , anti-static finger sets / gloves, best to wear anti-static clothing , so the human body is well grounded.
2 : table, iron and tools well grounded .
3 : keep the humidity in the workplace than RH60%.
4 : Packing materials are anti-static material.
Three: Welding
1 : the tip temperature less than 280 ℃.
2 : Welding time is less than 3-4S.
3 : Do not use acid flux .
   4 : Repeat soldering no more than three times, and each repetition interval of five minutes .
5 : Wash thoroughly after soldering , welding to prevent short circuits and signal interference , be careful not to spill the cleaning liquid onto the backlight.
Four: Installed
Not secretly change the LCD module supplier. Such as: change parts , change the circuit , twisting iron frame foot , demolition of PCB board processing . The above behavior caused LCD module does not display all do not give maintenance , except with the consent of our staff only .
Five: Testing
1 : LCD module and microcontroller connection refer to " wiring diagram ." Note the positive and negative polarity power supply can not be wrong , or cause overcurrent, overvoltage, burned chip circuit.
2 : After the correct wiring, began testing the liquid crystal display module , first open the logic power , then turn LCD drive power supply module ; time off , first turn off the LCD drive power supply module , and then turn off the logic supply at the positive supply. after stable access to the input signal level , such as the input signal level before and after disconnecting the power supply stable or may damage the China LCD display module IC.
3 : LCD display module with temperature changes and changes accordingly. When the ambient temperature exceeds the operating temperature of the liquid crystal display module , a liquid crystal state disappeared into the liquid , black display , this time must not be energized, and so reduce the temperature of self-healing ; Conversely , low temperature , ice crystals begin crystal flower , causing permanent damage. Another long-term storage at extreme temperatures or by vibration, shock , LCD will produce bubbles.
This is applied to the liquid crystal display module temperature compensation circuit reasons, or add an external potentiometer to adjust the contrast.
4: The LCD module can output VOP too , will affect the display, but also shorten the life of the module. Please refer to the correct voltage VOP each product specification.
Five: Storage
1 : Keep the original packaging.
2 : Wide Temperature save in the range of -30 ℃ ~ +80 ℃; ordinary temperature type stored in the range of -10 ℃ ~ +60 ℃.
3 : Put the dark, to avoid glare .
4 : You can not put anything on the surface pressure .
5 : Avoid storage in extreme temperature / humidity conditions.

China Touch Screen Industry Development Overview

Changes in a country's stock market reflects how the current situation of national economic development . Currently , the touch screen is one of the most popular since the intelligent terminal market concerns of the industry sector , Recently touchscreen stocks continued strong upward shocks , Fenghua Hi-Tech , Deren Electronic , East China Science and Technology , Hanwang Technology , Changjiang Electronics Technology , Yu Shun Electronics , Sanan Optoelectronics and other gains are great.
  Smart phone market will continue to grow next year , but will not grow as fast as in previous years . For example , in 2012 in mainland China smart phone market is growing three times this year, roughly doubled , next year can be maintained above 30% , there are still double-digit growth. Tablet PC growth rate will be higher , because of its large scale is not the phone , as a relatively new market , global growth next year may reach 70% to 80%. Plus automotive electronics, medical , sports , home appliances , and other communications applications also will be used to touch , never use the touch areas are being converted , these are " from scratch ," the opportunity to drive the entire industry sustainable development.
  Due to a large number of Chinese fonts LCD module mainland market capacity , consumption levels , many manufacturers have their own market segments. At present, resistive touch screen products such as large Lu Fuyang photovoltaic manufacturers , Huayi circuit , Norstar display , Huang Ze photoelectric deep more optoelectronics, electronics Watson , also working in the middle of the chain touch screen, touch panel manufacturing expansion, try to keep their share of the market. The CSG , Leybold Tech , Pegasus A touch screen and other mainstream manufacturers of OGS touch screen development, to ensure its leading position in the touch screen market.
  Currently, the touch screen there are 24 kinds of application categories , now smart phones, tablet PCs and laptops are the main fields of application. With the increase of the size of the touch screen market demand for large-size touch screen market has unlimited potential , which large multi-touch terminal market computer monitors, television began to appear , the mainland manufacturers have developed capacitive touch screen technology. Capacitive touch screen with high transmittance, durability and support for multi-touch features , a better future market prospects.

  On the other hand , the Embedded LCD display industry Gone are the days of high profits . Jin increasingly fierce competition , touch giants also have to adjust the industrial structure to deal with. Recently, due to the increased competition in the industry to opt out of animal husbandry East photoelectric become the focus of attention . In addition , the domestic small and medium sized touch screen factory closures also illustrates the touch industry has quietly entered a period of consolidation .

MOS tube drive lcd module

Compared with the bipolar transistor is generally believed that the MOS conduction current is not required , as long as the GS voltage is higher than a certain value , it. This is very easy to do , but we also need to speed.
Can be seen in the structure of the MOS transistor , parasitic capacitance between the GS, GD, and the driving MOS transistor , in fact, is to charge and discharge the capacitor .Tsingtek TFT LCD Displays Charging the capacitor requires a current because the capacitor to charge the capacitor can be instantly seen as a short circuit, so the instantaneous current will be relatively large . Select / design MOS tube drive the first to note is to provide instantaneous short circuit current size.
Note that the second , NMOS commonly used in high-side driver , need to be turned on when the gate voltage is greater than the source voltage. The high-side driver MOS transistor is turned on when the source voltage and the drain voltage (VCC) the same , so when the gate voltage than VCC big 4V or 10V. If the same system , to get larger than the VCC voltage , the boost circuit is necessary to specifically . Many motor drives are integrated charge pump, it should be noted that the choice of suitable external capacitor to get enough of the short-circuit current to drive the MOS transistor .
Said above 4V and 10V is a common turn-on voltage MOS tube , of course, need to have a certain margin design. And the higher the voltage , the faster conduction , conduction resistance is smaller. Now there are smaller turn-on voltage MOS works in different areas , but in 12V automotive electronic systems, general 4V conduction suffice.
MOS tube drive circuit and loss , you can refer to Microchip 's AN799MatchingMOSFETDriverstoMOSFETs. About it in detail ,
MOS tube application circuit
MOS transistor is the most significant characteristic of a good switching characteristic Tsingtek lcd display 2x16, which is widely used in the electronic switching circuit needed , such as switching power supplies and the common drive motor , there are lighting dimming .

Display principle LCDTFT DID lcd module screen features and analytical

LCD (LiquidCrystal) that liquid crystals , both as a liquid ( energy flow ) and like crystals ( optical properties of crystals ) of the material. Alignment of liquid crystal molecules have a certain order and arrangement of liquid crystal molecules will change under the influence of external electric field, thus affecting its optical properties.
LCD (LiquidCrystalDisplay, abbreviated LCD) is a thin glass plate constituted of two parallel , the distance between the two glass sheets is very small, is filled with liquid crystal is divided into small units . LCD panel itself does not light , it is through the LCD backlight to make the Tsingtek Character LCD Display screen lights up . Advantages of LCD screen is small, light weight , large area display , image stabilization, no radiation, low power consumption and environmental protection features . Compared with CRT monitors, LCD monitors power consumption CRT only 1/3 of the thickness of only 1 / 8 , weighs less than 1 /3 of the space savings of more than 60 %.
TFT LCD (Thin-FilmTransistor), abbreviation thin film transistor liquid crystal screen is the top material belonging to an active matrix type liquid crystal screen , the back has a special lamp, can be " actively " on each individual pixel on the screen control , which is what we often say that the active matrix TFT, it reacts faster , viewing angle , color saturation. Due to the arrangement of TFT LCD screen has a memory , so no restitution immediately after the current disappears , effectively improve the ability to play a dynamic picture .
What is DIDTFTLCD?
DID (DigitalIntelligenceDisplay) Tsingtek TFT LCD Module is dedicated LCD screen. It is based on the technical requirements used in security , radio and television , medical, industrial , and public areas such as media, publishing professional monitors designed and produced , following the NB, PC and fourth generation of LCD TV products . Its excellent display performance , has been recognized as the most high-end, the best LCD monitor screen.

On the camera's LCD screen

1 you see may not be what you get

Many of my friends like to shoot in RAW format . But in fact when you're shooting in the LCD view when the LCD screen is presented JPEG preview . So , if you see the color, contrast and exposure are not you ask it, do not panic , the file you are actually shooting will contain more data to be adjusted on a computer after the operation .

In addition , we found that the image displayed on the LCD screen than your final printed photos more vivid in color ,Tsingtek OLED modules brightness, stronger, clearer images and more . The reason is that the small size of the LCD screen or backlight illumination , so some exposure and focus on other issues tend not to be perceived by the user.

2 You can zoom through the LCD screen to find the problem

Whether it is a digital DC or digital SLR , its LCD screen can be used to enlarge your picture taken . By enlarging the picture, you can focus pictures taken timely query whether Indeed, the use of depth of field is in place .

3 composition functions can help you

Squares line is almost every digital camera has a function. Squares line can help you through the LCD monitor to compose the shot . ( Digital SLR camera in LIVE VIEW can be presented with the next viewfinder ) .

Using this grid, allows you to take pictures when the composition to ensure the horizon level, to remind myself not to be placed in the middle of the main shooting screen , or check the optimum location of the building trapezoidal distortion and so on.

4 shows a histogram parameters such information

Exposure, brightness histogram from dark to light transition tables and other information have some basic ideas for people photography is very necessary information. After early photographs , watch the histogram trend that lets you know where the photo had burst ( burst over the area will flash to warn ) in order to allow you to make adjustments before the next shot inside the machine .

Many cameras have an independent three-color RGB graphics table , this set of graphical information can help you see in the picture color performance degree . You can find very quickly lost picture is a particular color detail .

Proper use of color histogram lets you photograph in black and white images look richer detail . For example, you shoot red roses and red channel histogram shows that you do not have access to clean moist histogram trend lines , then your performance is certainly lack the red details .

5 By the late Tsingtek COG LCD Display screen image

Now, many digital cameras are built in the latter part of the organic function , although the effect is really simple but very good. You can choose a different color style , and then through the LCD preview.

In addition, the machine also has a lot of camera cropping, and some simple beauty effect. These can preview and save your favorite proofs under the LCD screen .

Buy a LED LCD celebration

Spring will come, and a larger , clearer, especially on television excellence dynamic definition naturally become indispensable stocking purchase order items . And with the LED LCD TV hot , many consumers face an array of LED LCD TV products, often at a loss . So how can buy roses TV ?

Tips to buy one: see picture

HD LCD TV is good or bad , mainly due to the following factors: LCD panel , contrast, refresh frequency.

Said first panel . Current mainstream LCD panel is divided into two kinds of hard- and soft-screen , such as LG Display IPS hard screen is horizontal arrangement of liquid crystal molecules in parallel with the panel in response speed , uniformity of better than soft screen .

Besides the contrast. The higher the contrast ratio , the picture is even more bright white , black, more dark , that is, its color display richer . Contrast like LG some television can reach 3000000:1 , this picture will be more structured , details also performed more delicate.

Finally, the screen refresh rate. Smearing the LCD TV has been criticized for many manufacturers launch high refresh rate , such as the SL90 's 100Hz screen refresh rate , whether it is watching sports or playing sports games , all with ease.

Optional Skills II : Look signal

TV election goes , it is better signal reception is good. With high-definition LED TV , to see high-definition programs, such as "HD Spring Festival" , but also a high-definition signal for the job .

In the optional LED LCD television, digital television depends on the function of this product are complete , such as whether to receive " terrestrial digital signal," support " HD programming card insertion " and so on .

Optional Skills III : Look Appearance

If the home has a stylish design with a slim LED Tsingtek Graphic LCD Module TV , both decorate the home, but also enhance the taste. Even without power , the people will surely win acclaim . For example, LG SL90 unique frame design , using a separate texture with thin glass mirror panels, without the slightest gap and margins , creating a unique extension of boundless beauty .

Optional Four Skills : see additional features

With the rapid development of science and technology , TV is not just TV , it should be a monitor , a video game , or even a home entertainment center.

In addition , a wireless connection with Bluetooth mobile phones, computers , MP4 and other digital devices , viewing pictures , videos and music on your TV , so the TV can thoroughly into a family entertainment center. In addition, the late night TV show to watch when you can still wear a Bluetooth headset , does not affect the family rest, is an accessory worth its user-friendly features and optional LED LCD TV brings an indispensable consideration when standard .

Overall, pre-holiday buy LED Tsingtek low temperature lcd display TV is a technology live . Panel to take into account not only the type of the product itself is directly related to the performance , appearance, function and so on, but also comprehensive technical strength and market performance analysis vendors. The slightest mistake will inevitably fall into the trap of propaganda.

Shot ultra-stable hard-screen LCD TV is king

Today's flat panel TV market turns out to be squandering charming eyes . Not only in terms of price , quality , performance is fairly mature traditional LCD TVs are very active, and accelerate the adoption of LED LCD TVs and 3D TVs also debut should not be underestimated . So for consumers, how do we buy into a versatile products?

LCD TV panels accounted for more than 70% of the cost , is the core component of LCD TVs. Notably , the panel on the market are "hard screen" and "soft screen " points. Soft -screen liquid crystal molecules recovery is slow , the screen is unstable. In contrast, hard screen has a clear advantage : When the touch , no " Watermark " phenomenon. Even when subjected to external forces beating and shaking , it will not interfere with a hard screen showing a smooth, clear picture. For this reason , IPS hard screen technology also has ultra-stable hard screen , and " touch the selected hard screen " LCD TV selection method has also been widely used.

LED TVs are hot at that time , it has a stylish ultra-thin , fine quality , green energy-saving features, is the perfect choice for many consumers eyes. However , note that , LED LCD TV market is divided into direct type and edge-lit . The difference is that side- advantage in the slim design and cost , but also the most widely used applications ; rather direct style is more concerned about the quality of user choice. Also , buy a high- quality LED LCD TV screen to distinguish between hard and soft .Graphic LCD Display As the molecular conversion speed hard-screen LCD screen 10 times faster than the soft , so when displaying fast motion picture , better able to ensure a clear , smooth and realistic effects .

For in the initial stage of 3D TV , the general view is that the industry , 3D TV on the LCD screen of the requirements will be more stringent than 2D TV. Because the 3D TV technology is relying on the principle of super-fast screen refresh rate and shutter glasses fit , so that the two vice complete picture formed at different times of persistence visual overlay. For this reason , many manufacturers have chosen the response speed of the liquid crystal molecules advantage of IPS hard screen panel. With Trumotion480Hz technology , 3D realization of a second screen is refreshed 480 times , and through the " flashing light " technology compatible , to minimize the result of his eyes " about interference " occurred " ghosting and dizziness ," and so on. Therefore, in the 3D TV can withstand a higher price , the one based on 3D TVs IPS hard screen technology will become the first choice .

Bluntly "LCD TV screen is the pick ! ", Although somewhat definitely speaks these words , but considering the merits of the Serial Lcd Display Module and image quality for LCD TVs have a decisive impact on the election -screen LCD TV really is purchase of a key ring .