栅极驱动单元、面板驱动电路及显示装置
By designing the 2G1D panel driving circuit, a combination of input switching transistors, output transistors, control transistors, and pull-down transistors is used to enable charging of two columns of pixel units through a single data line, solving the problem of high cost of driving circuits in existing technologies and reducing the circuit cost of display devices.
CN118522251BActive Publication Date: 2026-07-17SHENZHEN SKYWORTH INT TRADE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN SKYWORTH INT TRADE CO LTD
- Filing Date
- 2024-05-31
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The use of 1G1D circuits in existing display devices leads to high costs for the drive circuits.
Method used
By designing a gate driving unit, a 2G1D panel driving circuit is realized, in which each data line connects two columns of pixel units. By using a combination of input switching transistors, output transistors, control transistors and pull-down transistors, one data line can complete the charging of two columns of pixel units.
Benefits of technology
The use of data lines is reduced, lowering the cost of the drive circuit. By integrating capacitors and clock signals, the conduction time of the output transistors is extended, ensuring normal display in the display area.
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Figure CN118522251B_ABST
Abstract
本申请涉及一种栅极驱动单元、面板驱动电路及显示装置，面板驱动电路包括：级联的N个栅极驱动电路单元和像素阵列，且像素阵列中每条数据线连接两列像素单元，同一数据线连接的奇数列像素单元位于数据线的一侧，同一数据线连接的偶数列像素单元位于数据线的另一侧；每个栅极驱动单元包含输入开关晶体管、输出晶体管、控制晶体管和下拉晶体管，且下拉晶体管的控制极性与输出晶体管的控制极性相反，分为第一下拉晶体管和第二下拉晶体管，通过第一下拉晶体管在控制节点的控制下将第三信号端提供的第三信号传输给控制节点，并通过第二下拉晶体管将第三信号传输给输出节点，从而可以由一路数据线完成两列像素单元充电，减少数据线，进而降低成本。
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