Display Calibration Coefficient Configuration System Used in LED Panel

SONG Chao; WANG Rui-guang; FENG Ying-qiao

doi:10.3788/YJYXS20132803.0392

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Display Calibration Coefficient Configuration System Used in LED Panel

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- Display Calibration Coefficient Configuration System Used in LED Panel
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 3, Pages: 392-397(2013)
- 作者机构：
  
  1. 中国科学院大学北京,100049
  2. 中国科学院长春精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132803.0392
  CLC： TN873
- Received：18 May 2012，
  
  Revised：12 July 2012，
  
  Published Online：27 August 2012，
  
  Published：15 June 2013
- 稿件说明：
移动端阅览
宋超, 王瑞光, 冯英翘. LED大屏幕显示校正系数配置系统[J]. 液晶与显示, 2013,28(3): 392-397

SONG Chao, WANG Rui-guang, FENG Ying-qiao. Display Calibration Coefficient Configuration System Used in LED Panel[J]. , 2013,28(3): 392-397
宋超, 王瑞光, 冯英翘. LED大屏幕显示校正系数配置系统[J]. 液晶与显示, 2013,28(3): 392-397 DOI： 10.3788/YJYXS20132803.0392.

SONG Chao, WANG Rui-guang, FENG Ying-qiao. Display Calibration Coefficient Configuration System Used in LED Panel[J]. , 2013,28(3): 392-397 DOI： 10.3788/YJYXS20132803.0392.

摘要

为了有效地写入和读出在LED大屏幕显示控制系统中使用的校正系数

开发了基于USB接口和FPGA的LED大屏幕显示校正系数配置系统。介绍了串行Flash及其在LED显示系统中的作用。设计了系统的硬件电路

包括高速USB接口控制芯片和FPGA。设计了系统的软件程序

包括USB固件程序、PC端用户程序和FPGA配置程序。实验结果表明

该系统能够准确写入和读出校正系数

擦除每个扇区大约0.6 s

数据写入速度可达到2.3 Mbit/s

数据读出速度可达到30 Mbit/s。该系统在LED大屏幕显示控制系统的校正系数维修中能够起到重要作用。

Abstract

To effectively write and read the calibration coefficients used in LED panel display control system

a display calibration coefficient configuration system based on USB interface and FPGA was developed. Firstly

the serial flash and its application in LED display systems were introduced. Next

an electrical circuit is built

including a FPGA chip and a USB peripheral controller chip. Finally several programs were developed

including a USB firmware

a PC user program and a configuration program for the FPGA. Experiments show that the calibration coefficients can be correctly written and read with this system. Each sector of the flash can be erased in 0.6 s. The data can be written in 2.3 Mbit/s and read in nearly 30 Mbit/s.This system is easy to use

and it can take an important role in the calibration coefficients operation of the LED panel display control system.

关键词

Keywords

references

阮海蓉,夏贵勇.基于照相的LED显示屏亮度校正方法 [J]. 液晶与显示, 2012,27(2):193-194.[2] 张学成. 基于电力线载波模块的LED点阵图文显示系统 [J]. 液晶与显示, 2011,26(3):350-353.[3] 汪岚.智能LED信息显示屏控制系统设计与应用 [J]. 液晶与显示, 2011,26(5):655-659.[4] 邢伟,邵寅亮.一种LED显示控制系统在线升级的方法:中国专利,CN102081543A[P].2011-06-01.[5] 深圳市洲明科技股份有限公司.全彩LED显示屏非均匀性逐点校正系统:中国专利,CN201904067U .2011-07-20.[6] Xilinx.Spartan-3AN FPGA family data sheet [EB/OL].[2008-02-02].http://www.xilinx.com.[7] Cypress. EZ-USB FX2LPTM USB microcontroller data sheet [EB/OL].[2009-05-20]. http://www.cypress.com.[8] 钱峰. EZ-USB FX2单片机原理、编程及应用 [M].北京:北京航空航天大学出版社,2006:133-170.[9] ST Microelectronics.4Mbit,Low voltage, serial flash memory with 40MHz SPI bus interface [EB/OL].[2004-08-05] http://www.st.com.

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