Test Methods of LCD Module

Views : 707
Author : China lcd module supplier
Update time : 2019-12-19 17:29:48
At present, the inspection standards of LCD module do not involve the parameters of the national standard, and they all refer to the standards of the liquid crystal industry to meet the basic requirements of customers.

A+ grade LCD module: aerospace and military grade products are on the high side, with relatively high quality requirements and high cost.

A grade LCD module: industrial-grade products are on the high side, such as power systems, automotive instrumentation, electronic instruments, medical equipment and so on.

B grade LCD module: has more civil products, air conditioning remote control, POS machine, washing machine, electric car, higher requirements for cost control.

According to the quality requirements of different customers, the inspection standards of, LCD module will be different accordingly.

LCD module environment requirements:

LCD module finished product inspection needs to use two 40W fluorescent lamps, the inspector should be 1 meter away from the lamp. The ambient temperature is controlled at 10-32 ℃ and the humidity is controlled at 60 ±15%RH.

LCD module test method:

1. When testing, the naked eye should be 30cm away from the LCD product. LCD module should be carried out in its correct display mode and driving conditions.

2.LCD screen fully transparent products need to be backlit and check their appearance under normal conditions.

The appearance of the 3.LCM light guide plate must be tested once in the lit state.

4. Where the COG LCD module needs to carry out telecommunication check after the patch, the voltage should be adjusted in the range of 0.6V on the basis of Vop after pressing 5 on the tester when the test frequency is 80Hz.

5.TN LCD module check in scanning state: Leak, high current, other telecommunication items in full display state check;

Inspection level:

Grade A is the most stringent, level B is the second, and class C is looser, which is the most stringent in grade A, the second in grade B, and the loosest in grade C in the standard. For the product inspection levels applicable to different products, please refer to the Product Inspection Specification of the Technical Department.

XIANHENG TECH is a professional China LCD module supplier located in Shenzhen, the largest electronics city in China. If you have any questions, please feel free to email us to [email protected].
Related News
Read More >>
4 Main Applications of AUO Displays 4 Main Applications of AUO Displays
Nov .26.2022
AUO general displays provide ultra high resolutions, sunlight readability, and long product life. Applications include ATMs, POS, kiosks, industrial computers, security monitors, entertainment machines, medical equipment, factory automation, inflight entertainment, and marine displays. AUO also provide customized designs and integrated touch solutions to enhance clients' competitive advantages.
3 Advantages of INNOLUX LCD Panels 3 Advantages of INNOLUX LCD Panels
Nov .15.2022
INNOLUX Optoelectronics provides advanced display integration solutions with innovative and differentiated technologies, including 2K, 4K ultra-high resolution, 3D naked eye, IGZO, LTPS, AMOLED, OLED, and touch solutions.
AUO, BOE and INNOLUX, Which IPS Screen is Best? AUO, BOE and INNOLUX, Which IPS Screen is Best?
Oct .25.2022
IPS screen is a technology based on TFT, and its essence is TFT screen. IPS solves the problem of viewing angle by making the apparent length of the molecule the same in all directions. AUO, BOE and INNOLUX, Which IPS Screen is Best?
Application of INNOLUX in Intelligent Medicine Application of INNOLUX in Intelligent Medicine
Oct .18.2022
INNOLUX offers a full range of smart medical solutions with the most complete medical display modules ranging from 15" to 58", including 15" XGA, 19" SXGA, 23.6" FHD and 23.8" FHD, all with 5:4 and 16:9 screen ratios, bringing wider applications for ultrasound diagnostics.