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A method and device for power-on and power-off sequence of liquid crystal module based on FPGA

A liquid crystal module and module technology, applied in static indicators, instruments, etc., can solve the problems of rough switching sequence, inability to provide sequence control, and inability to meet new modules, etc., to achieve the effect of easy realization and simple operation

Active Publication Date: 2021-12-17
WUHAN JINGCE ELECTRONICS GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing image signal source (PG box) often can only produce a very rough switching timing, and cannot provide precise timing control, so it cannot meet the production of new modules. Therefore, a device that can perform such precise switching is needed Method and device for electrical sequence control

Method used

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  • A method and device for power-on and power-off sequence of liquid crystal module based on FPGA
  • A method and device for power-on and power-off sequence of liquid crystal module based on FPGA
  • A method and device for power-on and power-off sequence of liquid crystal module based on FPGA

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Embodiment

[0028] 1. First, introduce the hardware connection structure of the present invention.

[0029] The present invention includes:

[0030] 1. Upper-layer configuration interface: connected to the upper-layer parameter configuration system, and receives each parameter configuration information output by the upper-layer parameter configuration system;

[0031] 2. Clock generation component: used to generate a unit clock signal and output it as a microsecond time unit timing signal, specifically including:

[0032] Reference clock generation module: used to generate a high-precision, jitter-free, temperature-independent set clock signal, and output the clock signal;

[0033] Unit clock generation module: Receive the clock signal output by the reference clock generation module, and divide the clock signal by PLL to generate a set μs unit clock signal, and output the unit clock signal.

[0034] 3. Module control component: Receive various parameter configuration information transmi...

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Abstract

The present invention relates to the field of verification and testing of liquid crystal modules, and specifically refers to a method and device for directly detecting module glass on the production line of a factory of liquid crystal modules based on FPGA and realizing power-on and power-off sequences of liquid crystal modules , including: upper layer configuration interface, clock generation component, module control component, signal output component, RPG image module and power supply input module; the invention meets the inspection requirements of new liquid crystal modules, and is easy to implement, reliable in operation, simple in operation and low in cost lower.

Description

technical field [0001] The present invention relates to the field of verification and testing of liquid crystal modules, and specifically refers to a method and device for directly detecting module glass on the production line of a factory of liquid crystal modules based on FPGA and realizing power-on and power-off sequences of liquid crystal modules . Background technique [0002] As the production process of liquid crystal modules becomes more and more complex, the performance indicators are increasing, and the technical difficulty is getting higher and higher. There are more and more power supply and control signals for the LCD panel of the module. Between these power supplies, as well as power supply and image clock, The module control signal and image data must also meet the accurate power-on and power-off timing, so that the module can work normally and stably, and the color, brightness, definition, and gamma display of the image are accurate. However, the existing im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G3/3611
Inventor 朱亚凡许恩
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD