Excellent Characteristics And Prospects Of Lcd

Advantages:
(1) Low voltage, micro power consumption
Very low operating voltage, as long as 2V~3V can work, and the working current is only a few microamps, that is, only a few microamps per display character. A small button battery can also be used for 1 to 2 years, which is unmatched by any other display device. In terms of operating voltage and power consumption, liquid crystal display is just suitable for the development of large-scale integrated circuits. Such as electronic watches, calculators, portable meters, laptops and GPS electronic maps are possible.
(2) Low voltage drive
Generally, the threshold voltage of twisted nematic (TN) devices is only 1.5~2V, which can be directly matched with large-scale integrated circuits.
(3) Flat plate structure
The basic structure of the liquid crystal display device is a thin box made of two glass substrates. This structure is most conducive to being used as a display window, and it can accommodate the largest amount of display content in a limited area, and the highest utilization rate of display content. In addition, this structure can be made not only small, such as the display window used on the camera, but also large, such as large-screen LCD televisions and large LCD billboards.
This structure also facilitates mass, automated production. At present, the production of liquid crystal display devices mostly uses automated semi-automated integrated process production, and only a small number of workers can start an annual production line of thousands of pieces.
At this stage, liquid crystal display devices made of plastic substrates have been developed. The device is paper-thin and bendable, further reducing space.
(4) Passive display
(1) The display device itself cannot emit light, and it achieves the purpose of display by modulating external light. It is not like the active display device, which relies on the light to stimulate the human eye to achieve the display, but simply depends on the different contrast formed by the different reflection of the external light to achieve the display purpose. So it's called passive display. The passive display is more suitable for human vision and is not easy to feel tired. This advantage is especially important in the display of large amount of information, high density and fast transformation, and long time observation.
(2) Passive display is not afraid of light washing. The so-called light scouring refers to when the ambient light is brighter, the content information to be displayed is diluted by light, so that the display is not clear, and the passive display, because it is to reflect the external light to achieve the purpose of display, so the stronger the external light, the stronger the reflected light, the clearer the display content.
(3), the liquid crystal display can not only be displayed outdoors but also indoors, for the display in the indoor dark can be equipped with backlight to overcome the shortcomings of can not see.
(5) The display information is large
Compared with CRT, LCD devices have no shadow mask limitation, and the pixels can be made smaller and more fine; Compared with the plasma display, the LCD device pixels do not need to be as plasma display, and there is a certain isolation area between pixels. Therefore, the LCD display can accommodate more pixels and more information in the same size display window area, which is very advantageous for the production of high-definition TVS and notebook computers.
(6) Easy to color
Liquid crystals themselves have no color, but there are many ways to achieve color, such as color filtering and interference methods. Because the color filtering technology is more mature, the color of the liquid crystal is more accurate, more gorgeous and no color distortion.
(7) Long life
Liquid crystal material is an organic polymer synthetic material, with extremely high purity, other materials are also high purity substances, made under extremely purified conditions, the liquid crystal driving voltage is very low, the driving current is very small, the deterioration of this device is almost no, very long life, from the practical application, in addition to hard collision, crushing or accessories damage, The LCD device itself has almost no end of life.
(8) No radiation and no pollution
Liquid crystal display devices do not produce soft X-ray or electromagnetic radiation in use, and radiation can cause environmental pollution and information leakage, and liquid crystal display devices do not produce such problems. It is an ideal display device.