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The composition of full-color LED display is composed of the most basic LED unit board. If the unit board has problems, it will directly affect the display effect of the whole LED screen, such as the common color difference area or black screen phenomenon! At this time, how to detect and distinguish the LED display unit board is very important, and it has become the concern of many LED display manufacturers

We have introduced some principle knowledge of TFT LCD before. Let's introduce the classification of common TFT color screen panels: VA type LCD panel: at present, VA type LCD panel is the most widely used type of display products, mostly used in relatively high-end products. 16.7M color (8bit panel) and relatively large viewing angle are its most obvious technical features. Now VA type panel is divided into two types: MVA and PVA.

We have introduced some principle knowledge of TFT LCD before. Let's introduce the classification of common TFT color screen panels: VA type LCD panel: at present, VA type LCD panel is the most widely used type of display products, mostly used in relatively high-end products. 16.7M color (8bit panel) and relatively large viewing angle are its most obvious technical features. Now VA type panel is divided into two types: MVA and PVA.

TFT LCD is now widely used in the industrial field. The normal operation of industrial equipment does not turn on the stable performance of industrial display. A customer asked me what caused the flashing of my industrial screen? Today, Xiaobian will popularize the causes of TFT LCD flashing.

With the advent of the era of modern Internet technology, electronic equipment is more wireless and remote, which is more and more favored by people. The full-color LED display screen is also remotely controlled like other display devices, which greatly facilitates the transmission of display data and ensures the correctness, consistency and efficiency of data. The main features of wireless LED display are real-time release according to the line, unlimited distance and convenient maintenance. Among them, the more obvious are mainly reflected in the following aspects

Now the LED electronic display market is gradually favored by the majority of users, and the number of large and small LED display manufacturers is gradually increasing. However, because of the high and low technology of each display manufacturer, the LED products with poor quality are affecting the development of the market. We all know that only high-quality LED electronic display manufacturers can have a foothold in the market. So, as a LED product, how can we have a better foothold in the market? Liheli believes that there should be the following points:

In recent years, the rapid development of time, small spacing LED display from no one's products quickly become our indispensable products. Due to the continuous upgrading of LED display technology of each LED display manufacturer, it has added a lot of ice powder color and the expansion of application scope to our life. At the end of this year's many exhibitions in 2017, the small spacing LED display screen is a good example for many kinds of LED display screen

From the section view of the upper internal structure, it can be seen that the liquid crystal screen is composed of light diffuser, storage capacitor, row and column electrodes, glass bottom plate, polarized glass plate, TFT, transparent display electrode, transparent common electrode and color filter. The liquid crystal is located between the transparent display electrode and the transparent common electrode in Figure 6. The functions of each component will be introduced one by one.

With the coming of 2018, the price rising trend of LED chips is coming to an end. According to relevant sources, many chip manufacturers' individual varieties have even dropped by as much as 25%. Liheli believes that there are two main reasons for the price reduction. For a time, the external environment of chips in short supply has changed for many years. Second, many LED display manufacturers have been fighting for prices for many years. Just this year, several major LED chip manufacturers are all Eight Immortals crossing the sea. From the growth of supply, if we end 2017, compared with the growth at the end of 2016, we can fundamentally change the relationship between supply and demand

On April 14, Beijing time, according to China touch screen news, Apple's new iPhone will adopt OLED panel to ignite the topic. OLED seems to be a new power of the next generation panel technology. However, OLED's own technical burden is actually difficult to completely replace LCD. Micro LED technology is in the future, which is expected to break the limitation of OLED and become a real killer application to completely replace LCD, Apple and some Taiwan factories have already started a new wave of layout.

First, when using TFT LCD, please pay attention to whether the viewing angle of LCD is consistent with the purpose of your product, and check the installation direction of LCD. You can find the viewing angle parameters in the PDF specification of LCD for confirmation.

TFT color LCD is more and more widely used indoors and outdoors, especially the wide temperature TFT LCD is in increasing demand in many fields.

The main components of TFT LCD include fluorescent tube, light guide plate, polarizer, filter plate, glass substrate, alignment film, liquid crystal material, thin mode transistor and so on. Firstly, the LCD must first use the backlight, that is, the fluorescent tube to project the light source. These light sources will first pass through a polarizing plate and then pass through the liquid crystal. At this time, the arrangement of liquid crystal molecules will change the light angle penetrating the liquid crystal. Then the light must pass through the front color filter film and another polarizer. Therefore, as long as we change the voltage value of stimulating liquid crystal, we can control the light intensity and color at last, and then change the color combination with different depths on the liquid crystal panel.

LVDS interface is also a common communication interface in TFT LCD interface. Its English name is lowvoltagedifferential signaling, which is a low-voltage differential signal technology interface. It is a digital video signal transmission mode developed by NS company (National Semiconductor Company) to overcome the disadvantages of high power consumption and large EMI electromagnetic interference when transmitting broadband high bit rate data at TTL level.

TFT liquid crystal screen refers to thin film transistor, that is, each liquid crystal pixel is driven by the thin film transistor integrated behind the pixel, so as to display screen information at high speed, high brightness and high contrast. It is one of the best LCD color display devices at present.