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A self-adaptive cascaded graphic signal generation system

A graphic signal generation system technology, applied in the direction of cathode ray tube indicators, static indicators, instruments, etc., can solve the problems such as the inability to flexibly respond to the testing requirements of graphic signal generators, the inability to increase or decrease the number of signal interfaces, and achieve high bandwidth. , low latency, the effect of simplifying the communication protocol

Active Publication Date: 2021-07-09
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, detection equipment manufacturers generally customize the graphic signal generator according to the number of output interfaces required by the module manufacturer. Once the graphic signal generator is finalized, the number of output signal interfaces cannot be increased or decreased, and it cannot flexibly respond to graphic signals. Generator test requirements in different links

Method used

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  • A self-adaptive cascaded graphic signal generation system
  • A self-adaptive cascaded graphic signal generation system

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the adaptively cascaded graphic signal generating system of an embodiment of the present invention can output 4 LVDS test signals by adaptively cascading 2 graphic signal generators, so as to simultaneously provide 4 display modules to be tested. The group provides the dot screen signal required for testing. The graphic signal generating system of this embodiment includes a host computer, a master graphic signal generator capable of providing 2-way LVDS test signals, a slave graphic signal generator capable of providing 2-way LVDS test signals, and a back board, where:

[0024] 1) The upper computer is used to send module test files and control instructions to the master graphic signal generator and the slave graphic signal generator, and to receive and display the returned data from the master graphic signal generator and the slave graphic signal generator;

[0025] 2) The main graphic signal generator includes a main FPGA chip 1 provided w...

Embodiment 2

[0042] The self-adaptive cascading graphic signal generating system of another embodiment of the present invention can output 6-channel LVDS test signals through self-adaptive cascading of 3 graphic signal generators, so as to simultaneously provide 6 display modules to be tested. Test the required dot screen signal. The graphic signal generation system of this embodiment includes 1 host computer, 1 main graphic signal generator that can provide 2-way LVDS test signals, 1 first slave graphic signal generator that can provide 2-way LVDS test signals, 1 A second slave graphic signal generator that can provide 2-way LVDS test signals, and a backplane, of which:

[0043] 1) The upper computer is used to send module test files and control instructions to the master graphic signal generator, the first slave graphic signal generator and the second slave graphic signal generator, and to receive and display the main graphic signal generator, the first slave graphic signal generator re...

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Abstract

The invention discloses an adaptive cascade graphic signal generating system, which includes a host computer, a master graphic signal generating unit, at least one slave graphic signal generating unit, and a system for cascading the main graphic signal generating unit. A cascaded unit of the unit and the at least one slave graphic signal generating unit. The present invention can cascade a plurality of independent action graphic signal generators into a set of graphic signal generation system with multi-channel test signal output capability, and the graphic signal generation system can automatically identify according to the configuration state of the ID pin of the cascaded unit The master-slave relationship of the graphic signal generators participating in the cascading can be defined, and the number of test signal output interfaces can be customized according to the number of the graphic signal generators participating in the cascading, which can provide testing facilities for multiple display modules to be tested at the same time. The same graphics, power supply and timing control signals required.

Description

technical field [0001] The invention belongs to the technical field of graphic signal generator design, and more specifically relates to an adaptive cascaded graphic signal generation system. Background technique [0002] New flat-panel displays such as TFT-LCD and OLED have the advantages of high resolution, high brightness, and no geometric deformation. At the same time, due to their small size, light weight, and low power consumption, they are widely used in consumer electronics products that people use every day. , such as TV, computer, mobile phone, tablet, etc. The flat-panel display module is the main component of the flat-panel display. Its manufacturing process is complex and requires nearly a hundred processes. Therefore, various display defects will inevitably occur during the manufacturing process. In order to ensure the display quality of flat-panel display modules, module manufacturers need to inspect the display quality of flat-panel display modules in all as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G5/00G09G5/24
Inventor 叶金平刘荣华乐小林万勤华雷新军付文明
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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