What is the LCD screen with a wide range of applications?
LCD screen is divided into LCD black and white screen and LCD color screen. These two screens have their own characteristics, and the display effect and price are different, because it determines the cost performance when customers choose LCD screen. According to statistics, the world's widely used LCD screen is still an LCD black and white screen (
TN, HTN, STN, FSTN, VA)
The following is a detailed introduction to the LCD black and white screen: The big difference between the black and white LCD screen and the color LCD screen is that the color LCD screen is based on one or three primary colors, and the color of the black and white LCD screen is relatively single, therefore, color LCD screens can be used in many places in life. Facing the development of the market in the field of electronic screens, many various LCD screens have also received people's attention, however, the black-and-white LCD screen still plays its own role in people's sight, so there are still many black-and-white LCD screens that can be seen by people in all aspects of life.
At present, the share of black-and-white LCD screen in the market is relatively large, because its production method is relatively easy and the cost will not be too high ,?
Moreover, through the development of modern science and technology, the surface of the current black-and-white LCD screen is relatively wear-resistant and durable, and it can greatly increase the service life, because its series of cost will not be too high, and its use cost will not be too high, so many people are very welcome to it, which is why some simple old machine equipment and electronic calculators, the reason for the existence of black and white LCD screen on the electronic scale equipment.
The main reason is that it has such a series of advantages, so it can continue to emit light and heat in the market to provide a series of conveniences for people's lives.
Now it may not be seen on many electronic devices, the black and white LCD screen, but in fact, the black and white LCD screen is still active in people's lives, and it is precisely because of its characteristic of being able to face popularization and consumption level that it can continue to be widely used, but of course it will not remain the same, it will also develop and progress with the progress of science and technology.
The black and white screen can have such a wide range of applications, because its cost performance is relatively high, and many home appliance customers prefer it.
Liquid crystal panels are mainly divided into two categories: TN and wide-angle panels. TN panels have mature production technology, high quality and low price. The disadvantage is that the viewing angle is small and the color can only reach 16. 2M color, which is not conducive to the restoration of color.
Wide-angle panels are divided into IPS panels, MVA panels and PVA panels according to this. Their prices are very high, but their colors can reach 16. 7M color and viewing angle over 170 degrees.
At present, there are only about 5% displays with wide-angle panels in the market, and most of the rest are TN-type liquid crystal displays with low price.
1. TN panel is based on relatively mature standard TFT-
TN liquid crystal technology is widely used in entry-level and low-end liquid crystal displays. Due to its small output gray scale series and fast deflection speed of liquid crystal molecules, its response time is easy to improve, at present, TN panels are used in liquid crystal products under 8ms on the market.
On the whole, cheap price and fast response time are its greatest advantages, but the visual angle is only 140 degrees, and it is not as good as other high-end panels in color restoration because 16. The 7 m tn panel is 16 in color. 2M has not changed substantially.
2. The largest IPS panel sometimes has super realistic color restoration capability, but its response time is relatively long and the production cost is relatively high, therefore, most of them are used in high-end professional drawing liquid crystal displays, and the famous Apple liquid crystal displays are such panels.
In addition, the viewing angle of IPS panel is very large, which can basically reach the level of CRT display, and the color display capability reaches 16.
7M is not satisfactory in contrast, response time, black background and color saturation.
3. MVA panel can be said to be the earliest wide-view technology. Its liquid crystal layer contains a convex substance for liquid crystal molecules to adhere. Under the condition of not applying voltage, the MVA panel looks the same as the traditional technology. The liquid crystal molecules are perpendicular to the screen, and once the voltage is applied, the liquid crystal molecules will be attached to the protrusion and offset, forming a state perpendicular to the surface of the protrusion, this technology effectively improves the response time and viewing angle of the LCD, allowing the viewing angle to reach more than 170 degrees, and the contrast is also greatly improved, and the color display ability reached 16. 7 M.
Now this technology is relatively mature, so the market penetration rate is relatively high, MAYA's white, feilipu's 190P7 and youpai's VX2025wm both use MVA panel 4, PVA panel is derived from MVA panel, which uses transparent ITO layer to replace the protrusions in MVA liquid crystal molecules, this greatly improves the light transmittance, thereby improving the image quality and greatly improving the display performance. The viewing angle can also reach 170 degrees, response time, contrast and color restoration capability, all of them have been greatly improved. It can be said that PVA liquid crystal panel has almost no weakness except price.
Due to the high production cost, PVA panels are mostly used for LCD TVs and high-end drawing LCD, such as Samsung F7 Series LCD TVs, Dell 2007WFP and Samsung LA32R71B, which are still some distance from ordinary consumers (
Wide-angle technology: Among the parameter indexes on the liquid crystal display, there is a horizontal/vertical viewing angle, and the horizontal viewing angle of the traditional liquid crystal display is 45 degrees each, this means that the viewer function has a 90-degree viewing angle. When the nominal angle between the user and the display is heavy rain, you will not be able to see the contents on the display screen, this is why many users reflect the distortion or darkness of the picture when running games or watching movies on LCD displays.
However, wide viewing angle technology is different. It can increase the viewing angle of liquid crystal display to 160 degrees or more, thus solving the problem of insufficient viewing angle. )