Character LCD Module Twisted nematic liquid crystal

Alignment layer friction, close to its LCD will be arranged along it. At the other end, the friction in the direction perpendicular to the previous layer, arranged close to this layer of the liquid crystal along this direction. Liquid crystal molecules will be automatically rotated 90 ° between the two layers.
Also do one thing on the alignment layer is to set a certain pre-tilt angle. Recalling earlier about the rotational position of the molecule enables the angle of the molecular rotation necessary to make the molecules of the initial angle of the electric field is not zero, in order to allow the force component along the major axis and a minor axis. The pretilt angle of not only play this role, and also faster in response to the electric field to the liquid crystal molecules.
Twisted nematic liquid crystal display device is an innovative, but it is not perfect, it's not good perspective, if we can make it the perspective of improvement, it will have more applications. But this is the twisted nematic phase where the non-twisted nematic functional differences, it produces a wide viewing angle. If we perspective a feature perspective, that is, when the normal viewing angle of the screen to watch when you exceed this angle, you will find the original bright screen darkened; the original dark screen lights. Similarly, grayscale will change, no longer is that you want to show grayscale. This is the LCD an unpopular features.OLED Module
Because of its flat display, high brightness and full color characteristics of the liquid crystal display is a good display. However, due to its wide viewing angle so that it is not ideal. We can to improve by loss of the vertical viewing angle horizontal viewing angle. On the same display, when the observation point moves in the vertical direction, there will be different results. The display vertical upward movement, all the intermediate gray-scale brightness and dark bands will increase, but does not include the brightest bands. In other words, the monitor down, all grayscale darkens; Move the monitor, all grayscale become bright. Therefore, as the viewing angle changes, there will be a great brightness instability, which is determined by the orientation of the display. Loss of vertical viewing angle we can to increase the horizontal viewing angle. If you have a laptop, you will notice this feature. If I put the laptop is very low, the screen will be dark; when I will raise it, will become bright. So you can get a satisfactory moderate angle.
The viewing angle of the liquid crystal is an important feature, because it exists, limits its application in many occasions.
It can be better used in notebook computers. Without this full-color flat panel display, it is difficult to make such a small computer. So I have to make some concessions in this regard. However, when we want to do the large size of the monitor or large screen LCD TV, very picky person would say: "I want a high-quality display.color lcd display module
This is appropriate viewing distance of 18 inches or 20 inches. The big screen will have a completely different perspective. This perspective means can not - for each color, each point, do exactly the same as the brightness is impossible. Because the color is composed by the R / G / B three primary colors, when the viewing angle is increased, it is difficult to allow each color to remain stable, so the brightness of different perspectives will bring consistency Bad color distortion. To compensate for this instability of many efforts.