(1) module to access the power and disconnect the power must be in the positive supply (5 ± 0.25V) stable access to the input signal level. Such as the power supply is stable then in front of people, or disconnected after the input signal level will damage the integrated circuit module, the module damage.dot matrix LCD module
(2) dot matrix liquid crystal display device module high ones, the display contrast, viewing angle and temperature, the drive voltage relationship. So should be adjusted the Vee to best contrast, viewing angle stops. If the Vee adjustment is too high, will not only affect the display, but also shorten the life of the liquid crystal display devices.
(3) when the specified operating temperature range below the lower limit, the display response is slow, but when used in the upper limit of specified operating temperature range, the entire display surface will be darkened, which is not damaged, just restore the predetermined temperature range, everything will resume summer normal.QVGA LCD module
(4) push hard parts, will produce abnormal display. Then cut off the power to re-access can be restored to normal.
(5) When the liquid crystal display device or module surface fogging, do not energize work, because it will cause the electrode chemical reactions, resulting in disconnection.
(6) Long-term for the sun and bright light will cover parts of residual images.
color lcd display module
color lcd display module
2013年3月25日星期一
2013年3月24日星期日
LCD module
The liquid crystal display device is the basis of a high-tech components, and its application Pat is very broad, but for many people, the use of assembly still find it difficult. Special dot-matrix liquid crystal display devices, users will feel no start. Nonhuman people understand and have special connection mode and the special equipment needed, therefore the liquid crystal display device of the users want someone to do it, the liquid crystal display device with the control, drive ICs mounted together to form a functional member, the user simply traditional crafts can be assembled into a whole system.character LCDs
Broadly speaking, all together by the liquid crystal display devices and integrated circuits assembly parts belong to the "module", but in fact, we usually refer to the "module" is a dot-matrix liquid crystal display device assembly dot matrix LCD module especially because it is a dot-matrix liquid crystal display products in addition to some special varieties of some of the large quantities (such as translation, communication with), the manufacturer is directly supplied to the user liquid crystal display device, almost all generic type dot matrix liquid crystal display devices are processed into the module after the supply users, so it is easy to form a the LCD module dot matrix LCD module misunderstanding.OLED display module
Broadly speaking, all together by the liquid crystal display devices and integrated circuits assembly parts belong to the "module", but in fact, we usually refer to the "module" is a dot-matrix liquid crystal display device assembly dot matrix LCD module especially because it is a dot-matrix liquid crystal display products in addition to some special varieties of some of the large quantities (such as translation, communication with), the manufacturer is directly supplied to the user liquid crystal display device, almost all generic type dot matrix liquid crystal display devices are processed into the module after the supply users, so it is easy to form a the LCD module dot matrix LCD module misunderstanding.OLED display module
2013年3月19日星期二
The main parameters of the LCD module which
1 contrast
Optional LCD panel manufacturing control IC, the filter and the orientation film or the like accessories, and the contrast of the panel is related to general users, 350:1 sufficient contrast can be achieved, but the contrast level in the professional field can not to meet the needs of users. Relatively the CRT display easily reach 500:1 or higher contrast. Only high-end LCD monitors in order to achieve this way to such a degree, the contrast is difficult to be accurately measured by the instrument, so pick the time or want to personally go to the job.
Hint: The contrast is very important, it can be said that the more important indicator of a select LCD than the highlights, when you understand your customers to buy the LCD is used to the entertainment watching DVDs, you can emphasize the contrast is more important than the no dead pixels, we see streaming film source brightness is not, but want to see the character scenes contrast, hair gray to black texture changes rely on the level of contrast to visualize. ViewSonic VG and VX has been emphasizing the contrast indicators and, VG910S 1000:1 contrast ratio, we then take this and Samsung a double-headed graphics card comparison test, the Samsung LCD is significantly higher than that, however, we are interested can try. 256 grayscale test software test head to look more gray grid that is a good contrast!ЖК-модули
2, a luminance
LCD is a range between the solid and liquid material itself is not light, requires the use additional light sources Caixing. Number of lamps relations with the brightness of the LCD monitor. The first liquid crystal display only two lamps up and down to the present, popular type minimum of four lamps, high-end six lights. Four lamp design is divided into three display forms: one each of the four edges of a lamp, but the drawback is that the middle will appear the shadow, and the solution is on to the next four lamp flat arranged the last one is placed in the form of the "U" shape, in fact, two lights two lamps in disguise. The six-tube design actually used three lamps, three lamp manufacturers are bent into a "U" shape, and then placed in parallel to achieve the six lamp effect.жк модуль
Optional LCD panel manufacturing control IC, the filter and the orientation film or the like accessories, and the contrast of the panel is related to general users, 350:1 sufficient contrast can be achieved, but the contrast level in the professional field can not to meet the needs of users. Relatively the CRT display easily reach 500:1 or higher contrast. Only high-end LCD monitors in order to achieve this way to such a degree, the contrast is difficult to be accurately measured by the instrument, so pick the time or want to personally go to the job.
Hint: The contrast is very important, it can be said that the more important indicator of a select LCD than the highlights, when you understand your customers to buy the LCD is used to the entertainment watching DVDs, you can emphasize the contrast is more important than the no dead pixels, we see streaming film source brightness is not, but want to see the character scenes contrast, hair gray to black texture changes rely on the level of contrast to visualize. ViewSonic VG and VX has been emphasizing the contrast indicators and, VG910S 1000:1 contrast ratio, we then take this and Samsung a double-headed graphics card comparison test, the Samsung LCD is significantly higher than that, however, we are interested can try. 256 grayscale test software test head to look more gray grid that is a good contrast!ЖК-модули
2, a luminance
LCD is a range between the solid and liquid material itself is not light, requires the use additional light sources Caixing. Number of lamps relations with the brightness of the LCD monitor. The first liquid crystal display only two lamps up and down to the present, popular type minimum of four lamps, high-end six lights. Four lamp design is divided into three display forms: one each of the four edges of a lamp, but the drawback is that the middle will appear the shadow, and the solution is on to the next four lamp flat arranged the last one is placed in the form of the "U" shape, in fact, two lights two lamps in disguise. The six-tube design actually used three lamps, three lamp manufacturers are bent into a "U" shape, and then placed in parallel to achieve the six lamp effect.жк модуль
2013年3月18日星期一
LCD module how to use the more appropriate
Installation of the liner
Best installation of an approximately 0.1mm gasket between the module and the front panel. The panel should also maintain absolutely flat, to ensure that the twisting force does not produce, after assembly, and to improve vibration performance.LCD HD44780
Prevent static electricity
The control module, the drive circuit is a low-voltage, micropower CMOS circuit can easily be electrostatic breakdown, but the body sometimes produces up to tens of volts or hundreds of volts of high voltage electrostatic in operation, assembly, and the use of should be extremely careful to prevent static electricity. To do this:
(1) Do not hand free to touch the outer lead circuit of the circuit board and metal frame.
(2) If it is necessary to direct contact, so that the body and the module to maintain the same potential, or the human body is well grounded.
(3) welding using a soldering iron must be well grounded, there is no leakage.
(4) operating with an electric screwdriver and other tools must be well grounded, there is no leakage.
(6) Do not use a vacuum cleaner to clean processing. Because it will generate strong static electric.
(7) the air is dry, will produce static electricity, therefore, workplace humidity should RH60% or more.
(8) should form a resistance contact between the ground, table, chairs, shelves, carts and tools, in order to maintain the same potential, otherwise will produce static electricity.QVGA дисплей
(9) remove or replace the bags or mobile location, it should be particularly careful not to generate static electricity. Do not arbitrarily change the packing or collectively, to abandon the original packaging.
(10) electrostatic breakdown is a irreparable damage, be sure to pay attention to, not the effect.
Best installation of an approximately 0.1mm gasket between the module and the front panel. The panel should also maintain absolutely flat, to ensure that the twisting force does not produce, after assembly, and to improve vibration performance.LCD HD44780
Prevent static electricity
The control module, the drive circuit is a low-voltage, micropower CMOS circuit can easily be electrostatic breakdown, but the body sometimes produces up to tens of volts or hundreds of volts of high voltage electrostatic in operation, assembly, and the use of should be extremely careful to prevent static electricity. To do this:
(1) Do not hand free to touch the outer lead circuit of the circuit board and metal frame.
(2) If it is necessary to direct contact, so that the body and the module to maintain the same potential, or the human body is well grounded.
(3) welding using a soldering iron must be well grounded, there is no leakage.
(4) operating with an electric screwdriver and other tools must be well grounded, there is no leakage.
(6) Do not use a vacuum cleaner to clean processing. Because it will generate strong static electric.
(7) the air is dry, will produce static electricity, therefore, workplace humidity should RH60% or more.
(8) should form a resistance contact between the ground, table, chairs, shelves, carts and tools, in order to maintain the same potential, otherwise will produce static electricity.QVGA дисплей
(9) remove or replace the bags or mobile location, it should be particularly careful not to generate static electricity. Do not arbitrarily change the packing or collectively, to abandon the original packaging.
(10) electrostatic breakdown is a irreparable damage, be sure to pay attention to, not the effect.
2013年3月15日星期五
Liquid crystal displays and modules classification
First, the color classification: monochrome and color. Monochrome classification are:
(1) twisted nematic type (TN): The type low voltage, the viewing angle is small, black and white display, low cost and price.SPI LCD
(2) ultra-distorting effects of type (STN): This type of perspective than the TN type, operating voltage slightly higher, mostly green and yellow background or blue background, the cost price is higher than TN type.
Second, from the display:
(1) Just as the display: the display dark on a light background, such as: yellow and green screen, yellow-green, font black
(2) a negative image: dark background Mr. light, such as blue screen, blue background, white font.
Third, from the functional:
(1) segment: only display numbers and characters,i2c lcd
(2) Character: You can only display numbers, letters,
(3) graphics: only display graphics and numbers and letters,
(4) Chinese graphic: Chinese, numbers, graphics, letters, and a built-in Chinese standard Chinese character.
(1) twisted nematic type (TN): The type low voltage, the viewing angle is small, black and white display, low cost and price.SPI LCD
(2) ultra-distorting effects of type (STN): This type of perspective than the TN type, operating voltage slightly higher, mostly green and yellow background or blue background, the cost price is higher than TN type.
Second, from the display:
(1) Just as the display: the display dark on a light background, such as: yellow and green screen, yellow-green, font black
(2) a negative image: dark background Mr. light, such as blue screen, blue background, white font.
Third, from the functional:
(1) segment: only display numbers and characters,i2c lcd
(2) Character: You can only display numbers, letters,
(3) graphics: only display graphics and numbers and letters,
(4) Chinese graphic: Chinese, numbers, graphics, letters, and a built-in Chinese standard Chinese character.
2013年3月13日星期三
LCD monitors how much you know
The liquid crystal display device (B CD) is a new display device. Since its inception in 1968, the speed of its development, the wide range of applications, have been far more than other light-emitting display devices.
Technical characteristics:
The liquid crystal is between the intermediate between the solid and liquid substances.экран lcd
General situation, it is the same and the liquid can flow, but different in different directions on its optical properties, showing similar to the nature of the crystals, so called of such substances is a liquid crystal. The use of liquid crystal electro-optic effect is made into a display is LCD monitor.
Commonly used TN type liquid crystal display device has the following advantages:
(1) low operating voltage (2-6V), the match with CMOS circuits for micro-power (1μW/Cm2).QVGA LCD
(2) soft, clear handwriting; not afraid glare erosion, light, the stronger the greater the contrast, the better the effect. The small size, light weight, flat type.
(3) design and production process is simple. The size of the device could have been done, also can be made very small; display content is displayed in the same plane can be done, and can also be less, and display the word operators can be designed to be nice.
(4) high reliability, long life, low-cost.
2013年3月12日星期二
Where is the new trend of the development of liquid crystal display applications
Personalized applications shine
LCD (cog lcd)Display has a slim aesthetic, environmental protection, energy conservation, and other natural advantages, the decision of the LCD display is more in line with the application requirements of the modern office, home and public places, LCD monitors shine personalized applications.
Personalized design, in order to meet the aesthetic taste and cultural tastes of consumers, various manufacturers Competition design skills, ultra-light, ultra-thin, ultra-narrow bezel, the fold rotation, streamline design, change color change color, the same configuration case appearance of novel color, metallic silver, cutesy pink and fluorescent flu powder blue notebook more popular.
On the environment, starting from March 1, 2007, China's "Electronic Information Products Pollution Control Management Measures implemented, according to the Administrative Measures for mobile phones, laptops, desktop computers, home appliances, DC, DV, MP3, MP4, printers, etc. In within the electronic products, where sales in our country need to meet the requirements of pollution control standards and pollution control of electronic information products logo. Display products on a silver nano, negative ions, such as application of new technologies, new design idea given consumer health, environmental protection, energy saving, green action.mono lcd
Wall mount applications, large-screen display, which greatly expand the the LCD application space, so that the liquid crystal display applications continue to extend.
LCD (cog lcd)Display has a slim aesthetic, environmental protection, energy conservation, and other natural advantages, the decision of the LCD display is more in line with the application requirements of the modern office, home and public places, LCD monitors shine personalized applications.
Personalized design, in order to meet the aesthetic taste and cultural tastes of consumers, various manufacturers Competition design skills, ultra-light, ultra-thin, ultra-narrow bezel, the fold rotation, streamline design, change color change color, the same configuration case appearance of novel color, metallic silver, cutesy pink and fluorescent flu powder blue notebook more popular.
On the environment, starting from March 1, 2007, China's "Electronic Information Products Pollution Control Management Measures implemented, according to the Administrative Measures for mobile phones, laptops, desktop computers, home appliances, DC, DV, MP3, MP4, printers, etc. In within the electronic products, where sales in our country need to meet the requirements of pollution control standards and pollution control of electronic information products logo. Display products on a silver nano, negative ions, such as application of new technologies, new design idea given consumer health, environmental protection, energy saving, green action.mono lcd
Wall mount applications, large-screen display, which greatly expand the the LCD application space, so that the liquid crystal display applications continue to extend.
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