Display Panel Pixel Circuits with Mode-Specific Black Voltages
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Solution Overview
Problem
Existing display panels face high power consumption due to the use of the same black state voltage in both high and low brightness modes, leading to an increased data signal range and inefficient power usage.
Innovation Solution
Implementing different black state voltages for different brightness modes and light-emitting elements with distinct colors to optimize power consumption by adjusting the data signal range based on brightness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same black state voltage is used for both high and low brightness modes, then the display panel can maintain simple voltage control, but the data signal range increases and power consumption rises
Solution Approach 1:
The patent applies local quality by assigning different black state voltages to different brightness modes. Specifically, a first black state voltage is used for high brightness mode while a second black state voltage is used for low brightness mode, where the voltages are differently sized based on the specific brightness requirements. This allows each mode to operate with optimized voltage levels, reducing unnecessary voltage range and lowering power consumption while maintaining simple control architecture.
2Device complexity
If the same black state voltage is used for all light-emitting elements, then the control system remains simple, but power consumption increases due to inefficient voltage usage
Solution Approach 1:
The patent extends local quality to individual light-emitting elements by assigning different black state voltages based on their specific characteristics and brightness mode requirements. Each light-emitting element receives an optimized black state voltage appropriate for its operation mode, rather than a uniform voltage applied to all elements. This reduces the overall data signal range and minimizes power consumption while keeping the control system relatively simple.
3Adaptability or versatility
If a larger data signal range is used to accommodate all brightness modes, then the display panel can operate across all modes, but power consumption increases
Solution Approach 1:
The patent implements dynamics by making the black state voltage adaptive to the current brightness mode. The system dynamically switches between a first black state voltage for high brightness mode and a second black state voltage for low brightness mode. This dynamic adaptation allows the display panel to maintain versatility across all brightness modes while minimizing the data signal range actively in use, thereby reducing power consumption compared to using a constantly large voltage range.
Data Source
AI summary
Provided are a display panel, an integrated chip, and a display device. The display panel includes a pixel circuit and a light-emitting element, wherein the pixel circuit includes a driving module and a data writing module; the data writing module is configured to provide a data signal to a gate of the driving module; the light-emitting element comprises a first light-emitting element and a second light-emitting element, and the first light-emitting element and the second light-emitting element have different light-emitting colors; an operating mode of the display panel comprises a first mode, where in the first mode, when the display panel displays a black state image, a data signal written into a driving circuit corresponding to the first light-emitting element is black state voltage G011; and a data signal written into a driving circuit corresponding to the second light-emitting element is black state voltage G012, wherein G011≠G012.