What Are the Parameters of the Lcd Module?

The principle of LCD module display is that the backlight assembly emits uniform surface light, and the light is transmitted to our eyes through the LCD screen. The function of the screen is to process these lights by pixels to display images.

• LCD module and integrated backlight which screen is better?

• What should we do if the LCD module has a white screen/blue screen?

• What are the parameters of the LCD module?

LCD module and integrated backlight which screen is better?

In terms of material cost, the cost of an LCD module screen is higher than that of an integrated backlight screen, and the larger the size, the greater the price difference. The LCD screen I assembled is an industrial-grade display screen, which can support 7X24 hours of uninterrupted work. The original module screen generally has a brightness of 350cd/m²-700cd/m² (except for the bright screen, which has changed the backlight). The integrated backlight screen is relatively civilian-grade, and the daily working time is 8-12 hours (starting the application all day will speed up the service life of the display screen), and the integrated backlight screen is generally around 300cd/m². So overall, the LCD module screen is more stable, but the price of the LCD module screen is higher than that of the integrated backlight screen.

What should we do if the LCD module has a white screen/blue screen?

When the LCD module is working, there will be a white screen/blue screen. The so-called white screen or blue screen means that only the backlight of the LCD module is on, and the contrast does not respond. This is because during the operation of the whole product, electromagnetic interference is applied to the power supply VDD or VSS of the LCD screen, or the RESET signal line, causing the LCD screen module to be reset. The result of the reset is to initialize the internal registers of the module and turn off the display module at the same time.

Solution: If the interference is applied to the power line, then incorporate a stabilizing capacitor and a filter capacitor between the power lines VDD and VSS closest to the LCD module. If interference is applied to the RESET signal line, a filter capacitor should be incorporated between the RESET signal line closest to the LCD screen and VSS, and the capacitance should be 0.1uF or 0.01uF. The selection of the capacitance value needs to be determined according to the actual test effect.

What are the parameters of the LCD module?

The so-called dead pixels are collectively referred to as pixels that cannot be displayed normally on the LCD panel. The liquid crystal panel is composed of many pixels, and the liquid crystal material on each display point changes the light transmission and the same state under the control of electrical signals. Under the resolution of 1024*768, the LCD panel has a total of 786,432 display points. With so many points, it is difficult to fully guarantee that some problems will occur. The current technology is still unable to completely overcome the situation of no dead pixels. Therefore, the grade division of the panel is also judged according to the number of dead pixels. Manufacturers generally avoid dead pixels and segment LCD panels, selling LCD panels with no or very few dead pixels at a high price, while those with a large number of dead pixels are sold at a low price.

BIBUKE can customize all kinds of sizes liquid crystal display (LCD) with glass thickness 1.1mm, 0.7mm,0.55mm,0.4mm and the models of TN, HTN, STN and FSTN LCM with COB, TAB, COG, TFT and LED Backlight.