Design of Medium Size Digital TFT-LCD Test Device Based on FPGA

HONG Jun-jie; WU Gui-xing; HUANG Xian-fu; WU Yu-liang

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Design of Medium Size Digital TFT-LCD Test Device Based on FPGA

Test & Evaluation | 更新时间：2020-08-12

- Design of Medium Size Digital TFT-LCD Test Device Based on FPGA
- Chinese Journal of Liquid Crystals and Displays Vol. 24, Issue 2, Pages: 288-293(2009)
- 作者机构：
  
  天马微电子股份有限公司,广东深圳 518118, E-mail:yuliang_wu@tianma.cn
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN27;TN702
- Received：14 August 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2009，
  
  Published：30 April 2009
- 稿件说明：
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洪俊杰;吴贵兴;黄显甫;吴育良. 基于FPGA的中尺寸数字TFT-LCD 测试装置设计[J]. 液晶与显示, 2009,24(2): 288-293

HONG Jun-jie;WU Gui-xing;HUANG Xian-fu;WU Yu-liang. Design of Medium Size Digital TFT-LCD Test Device Based on FPGA[J]. 液晶与显示, 2009,24(2): 288-293
洪俊杰;吴贵兴;黄显甫;吴育良. 基于FPGA的中尺寸数字TFT-LCD 测试装置设计[J]. 液晶与显示, 2009,24(2): 288-293 DOI：

HONG Jun-jie;WU Gui-xing;HUANG Xian-fu;WU Yu-liang. Design of Medium Size Digital TFT-LCD Test Device Based on FPGA[J]. 液晶与显示, 2009,24(2): 288-293 DOI：

摘要

介绍了一种以FPGA为核心器件的中尺寸数字TFT-LCD 面板测试装置的硬软件设计方案及实现

重点描述了驱动时序发生、

COM

和Gamma参考电压产生以及按键PWM调光功能模块的硬软件设计。通过软件时序仿真及实验验证

该测试装置能清晰、稳定地显示单色、灰阶、Cross-Talk 和Flicker等常见的TFT-LCD测试画面

具有使用灵活、通用性好和可移植性强的优点

能很好地满足实际生产中不良品检测、光学性能测试与分析的需要。

Abstract

Design solution and implement of medium size digital TFT-LCD panel test device based on FPGA are introduced. Key points and implement of hardware and software design

for driver timing generator

COM

and Gamma reference voltage generator and PWM dimming with keys

are described in detailed. It is verified

by the timing simulation and experiment that the test device can display monocolour

gray scales

cross-talk

flicker common patterns clearly and steadily

and can meet needs in the production for the defect detection

optical performance test and analysis. It is flexible to use

and easy to transplant.

关键词

Keywords

references

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