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LCD External Function Interface Connectivity Speed Measurement System Based on FPGA
Author(s): 
Pages: 79-81
Year: Issue:  20
Journal: Video Engineering

Keyword:  现场可编程门阵列连通性开路测试短路测试;
Abstract: 在LCD液晶成品出厂前,需要进行光电特性及PCB检测外,其各种外接功能接口的连通性检测也是重要的环节,目前多数LCD厂家对外接功能接口检测尚处于人工检测阶段.利用FPGA芯片可以输出和读取高阻态的特点,设计并制作了LCD外接功能接口快速测量系统,实际应用证明其可以快速判断外接功能接口存在的开路、短路、连线等缺陷,具有在线测量准确、快速检测的特点,为LCD厂家节省了成本,具有重要的使用价值.
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