Gamma Module Driving Circuit Mode Adaptation
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Solution Overview
Problem
OLED display devices require different power supply voltages for internal compensation and detection modes, leading to increased power resource usage.
Innovation Solution
A driving circuit that includes a gamma module capable of outputting specific initialization voltages and a reference voltage, allowing the display panel to operate in both internal compensation and detection modes without adding distinct power supply voltages by adjusting transistor connections and switching components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different power supply voltages are added for internal compensation mode and detection mode, then mode compatibility is improved, but power resource usage increases
Solution Approach 1:
The gamma module is designed to perform multiple functions by outputting different initialization voltages (first initialization voltage, second initialization voltage, third initialization voltage) and reference voltage depending on the operating mode. This single module serves both internal compensation mode and detection mode without requiring separate power supply circuits, thereby achieving mode compatibility while avoiding increased power resource consumption
Solution Approach 2:
The patent changes the output voltage parameters of the gamma module based on the operating mode. By adjusting which voltage (first initialization voltage, second initialization voltage, third initialization voltage, or reference voltage) is output according to the mode signal, the system achieves adaptability between different modes without adding separate power supply voltages, thus resolving the contradiction between mode compatibility and power resource usage
Data Source
AI summary
A driving circuit, a display panel, and a display device are disclosed. In the driving circuit, the display panel, and the display device disclosed in the present disclosure, the gamma module outputs the first initialization voltage and the second initialization voltage when the display panel is in the internal compensation mode, and the gamma module outputs the third initialization voltage and the reference voltage when the display panel is in the detection mode.