像素电路及其驱动方法和显示面板
By using a pixel circuit driven by a mixed-signal architecture and adjusting the grayscale display with a light-emitting time control module and discharge voltage, the problem of discontinuous grayscale development in Micro LED display panels is solved, achieving continuous and reliable grayscale display.
CN117496876BActive Publication Date: 2026-07-17CHENGDU VISTAR OPTEOLECTRONICS CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHENGDU VISTAR OPTEOLECTRONICS CO LTD
- Filing Date
- 2022-07-26
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing Micro LED display panels suffer from discontinuous grayscale development, resulting in the grayscale not being fully developed.
Method used
The pixel circuit adopts a mixed-signal drive and controls the conduction time of the first drive module through the light emission time control module to achieve precise control of the light emission time of the light emission module. The grayscale display is adjusted by the change of discharge voltage.
Benefits of technology
It improves the grayscale expansion effect, ensures the continuity and reliability of grayscale modulation, and makes up for the problem of discontinuous grayscale expansion in the existing technology.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117496876B_ABST
Abstract
本发明公开了一种像素电路及其驱动方法和显示面板，该像素电路包括第一驱动模块、发光时间控制模块、第二驱动模块和发光模块；第一驱动模块和发光模块连接于第一电源线和第二电源线之间，第一驱动模块用于根据第一数据电压驱动发光模块发光；第二驱动模块连接于第一电源线和发光时间控制模块的输入端之间，发光时间控制模块的输出端与第一驱动模块的控制端连接，第二驱动模块用于根据第二数据电压对发光时间控制模块进行充电，发光时间控制模块用于根据自身的放电电压对第一驱动模块的控制端的电位进行控制，以控制发光模块的发光时间。本实施例提供的技术方案弥补了现有技术中灰阶展开不连续的问题，并保证了灰阶调制的可靠性。
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