像素电路、像素驱动方法和显示面板

By working together with the drive control module, reset module and auxiliary boost module, the problem of different start-up times caused by fixed reset voltage in OLED displays is solved, and the start-up time is synchronized under low brightness and high brightness, which significantly improves the display quality.

CN122201191BActive 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
2026-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing OLED display technology, the fixed reset voltage causes large differences in the turn-on time under different brightness levels, resulting in low-frequency flickering and affecting display quality.

Method used

By introducing the collaborative work of the drive control module, reset module and auxiliary boost module, the auxiliary boost module performs transient charging of the drive node during the charge sharing phase, and combined with the steady-state charging of the drive control module, the on-time synchronization under low brightness and high brightness is achieved.

Benefits of technology

Without significantly increasing circuit complexity and power consumption, the difference in turn-on time under different brightness levels was eliminated, low-frequency flicker was suppressed, and display quality was improved.

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Abstract

本申请属于显示驱动技术领域,具体涉及一种像素电路、像素驱动方法和显示面板,该像素电路包括驱动控制模块用于在数据写入阶段,根据数据线上的数据电压产生驱动电流,并在发光阶段将所述驱动电流输出至驱动节点;复位模块用于在复位阶段,响应于复位控制线上的复位控制信号,将驱动节点的电压复位至复位电压;辅助升压模块用于在电荷共享阶段,响应于扫描线上的控制信号对驱动节点充电,以抬升驱动节点的电压;本申请通过驱动控制模块、复位模块和辅助升压模块的协同工作,在不显著增加电路复杂度和功耗的前提下,有效消除了因固定复位电压导致的不同亮度下起亮时间差异,抑制了低频闪烁现象,显著提升了显示品质。
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