Liquid crystal display module testing method, device, system and testing equipment

Abstract

The invention discloses a test method, a device, a system and test equipment of liquid crystal display module. The test method, the device and the system and the test equipment of liquid crystal display module are used for improving test efficiency of a liquid crystal display module test and compatibility of the test equipment, wherein the liquid crystal display module test system comprises an upper computer, a liquid crystal test control device, a driving circuit and a liquid crystal test module. The upper computer are connected with at least two liquid crystal test control devices, each liquid crystal test control device is connected with at least two liquid crystal display modules through the driving circuit, and the liquid crystal test control device is connected with the driving circuit through a liquid crystal driving connector. The upper computer is used for sending a liquid crystal driving connector initializing instruction to the liquid crystal test control device. The liquid crystal test control device is used for conducting initialization on the liquid crystal driving connector after receiving the liquid crystal driving connector initializing instruction. Test images which are downloaded from the upper computer can be transmitted and displayed to each liquid display module through the driving circuit.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display module testing method, device, system and testing equipment. Background technique [0002] Liquid Crystal Display Module (LCM, Liquid Crystal Display Module) is a component that assembles liquid crystal display devices, connectors, integrated circuits, circuit boards, and backlights. The liquid crystal display device displays images by controlling the rotation or deflection angle of the liquid crystal, and the backlight source provides the liquid crystal display device (that is, the liquid crystal display panel) with a light source for the liquid crystal display device to display images. In order to ensure the quality of the liquid crystal display module, it is necessary to test the display quality, reliability and optical performance of the liquid crystal display module during its development. [0003] Since the current liquid crystal dis...

AI Technical Summary

Problems solved by technology

[0003] Since the current liquid crystal display module mainly has a micro control unit (MCU, Micro Control Unit) interface, a serial peripheral device (SPI, Serial Peripheral Interface) interface, a central processing unit (CPU, Central Processing Unit) interface, red, green and blue (Red) Green Blue) interface, low voltage differential signal (LVDS, Low-Voltage Differential Signaling) interface, transmission minimized differential signal (TMDS) interface, Mini-LVDS interface, low swing differential signal (RSDS, Reduced Swing Differential Signal), etc., and DP (Display Port) interface, Mobile Industry Processor Interface (MIPI, Mobile Industry Processor Interface) interface, etc., and the same test equipment usually only supports a few interface methods, especially now that the original large-size LCD production line is transformed For small-sized liquid crystal displays, because the existing test equipment does not support the initialization interface required by small-sized liquid crystal displays, the compatibility of the test equipment is poor; at the same time, due to the limited number of liquid crystal display modules that can be connected to one test equipment, the test efficiency is relatively low Low

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