显示面板基板

By setting up test circuits and energy storage units on the display panel substrate, the voltage consistency of two adjacent scan lines is detected, which solves the problem of ineffective short circuit detection in array substrate manufacturing, improves product yield and reduces costs.

CN122201153BActive Publication Date: 2026-07-17HKC CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HKC CORP LTD
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, it is impossible to effectively detect whether a short circuit occurs between two adjacent scan lines in the manufacturing process of the array substrate. This can lead to potentially defective array substrates flowing into the back-end process, affecting the product yield and cost control.

Method used

By setting a test circuit on the display panel substrate, changing the voltage of one row scan line in an adjacent row scan line pair, and detecting the voltage relationship between the two rows scan lines, short circuit detection is achieved using an energy storage unit and a switching module to ensure voltage consistency in order to determine the short circuit condition.

Benefits of technology

Effective detection of short circuits between adjacent scan lines prevents potentially defective array substrates from flowing into the back-end process, improving product yield and reducing production costs.

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Abstract

本申请涉及一种显示面板基板,该显示面板基板包括:N行扫描线和扫描驱动电路,扫描驱动电路包括N个级联的扫描驱动单元,扫描驱动单元的输出端与对应的扫描线连接,N为大于2的正整数;测试电路,测试电路用于改变相邻行扫描线对中的一个行扫描线的电压,并检测相邻行扫描线对中的两行扫描线的电压之间的关系,从而检测相邻行扫描线对是否发生短路。该显示面板基板解决了现有技术中ATT阶段无法有效检测出相邻两行扫描线是否发生短路的问题。
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