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Liquid crystal module test system based on SOC FPGA

A technology of liquid crystal module and test system, applied in the direction of instruments, static indicators, etc., can solve the problems of limited test models and test requirements, users cannot freely edit and change, achieve flexible interface type support, reduce equipment failure rate, The effect of reducing equipment cost

Inactive Publication Date: 2015-10-21
HEFEI HUA ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional liquid crystal module test pattern generation equipment often adopts a customized method, and the test pattern and timing are solidified in the system. Users cannot edit and change freely, which greatly limits the test models and test requirements it can adapt to.

Method used

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  • Liquid crystal module test system based on SOC FPGA
  • Liquid crystal module test system based on SOC FPGA
  • Liquid crystal module test system based on SOC FPGA

Examples

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Embodiment Construction

[0018] Such as figure 1 As shown, a SOC-FPGA-based liquid crystal module testing system of the present invention includes a PC terminal (1), a liquid crystal module testing module (2) and a liquid crystal module to be tested (3), and the liquid crystal module The test module (2) includes a main control unit (4) and a test signal generating device, and the test signal generating device includes a signal generating unit (5) and a signal conversion unit (6); Input unit (7), display unit (8), storage unit (9) and Ethernet interface (10) all carry out signal exchange with main control unit, and described main control unit (4) adopts SOC-FPGA built-in dual-core 1GHZ ARM is used as the main controller, and the main control unit (4) includes an LCD module timing editor, a test pattern editor and a test program editor, providing more than 128 groups of timing, 256 groups of patterns and 32 groups of tests Three pattern display modes of program, extension, copy and grayscale, color res...

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Abstract

The invention discloses a liquid crystal module test system based on an SOC-FPGA, comprising a PC, a liquid crystal module test module, and a liquid crystal module under test. The liquid crystal module test module includes a main control unit and a test signal generation device. The test signal generation device includes a signal generation unit and a signal conversion unit. The main control unit receives a test file generated by the PC through a built-in Ethernet interface, stores the test file in a storage unit DDR3 of an ARM, parses the test sequence and pattern storage address according to a command input by an input unit, and sends a signal to the signal generation unit. The liquid crystal module test system has the significant effects of hardware cost saving, power consumption reducing, module size reducing, failure rate reducing, and the like, can be upgraded flexibly, and supports higher resolution and interface type.

Description

technical field [0001] The invention belongs to the field of liquid crystal screen quality detection, and relates to a distributed test system which can be used for function test, aging test and dead point test of liquid crystal modules, and is convenient for inspectors to monitor the performance and quality of liquid crystal modules in time. Background technique [0002] As the public's demand for liquid crystal display screens increases day by day, liquid crystal module manufacturers continue to expand their production scale. Subsequently, the performance and quality monitoring of LCD modules, timely detection of defective products in the mass production stage, has become a hot spot for LCD manufacturers. The visualized test pattern provides an intuitive and fast evaluation method, which is widely used in the function test, burn-in test and dead point test of the LCD module, which is convenient for the inspectors to monitor the performance and quality of the LCD module in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00
Inventor 孙天春
Owner HEFEI HUA ELECTRONICS TECH CO LTD
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