Display Panel Light Sensing Compensation for Luminance Decay
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Solution Overview
Problem
The existing display technologies, particularly OLEDs, face challenges in real-time sensing of deterioration in light emitting devices, leading to a gradual decrease in optical compensation effectiveness over time, resulting in reduced luminance and inefficient compensation.
Innovation Solution
A display method that incorporates light sensing devices to continuously monitor and adjust the brightness compensation gain of light emitting devices based on actual and target brightness values, ensuring accurate luminance compensation by comparing average values and determining the need for adjustments, thereby maintaining optimal display performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If light emitting devices are used for continuous display, then productivity is improved, but the light emission luminance gradually decreases due to deterioration
Solution Approach 1:
The patent implements a feedback mechanism where light sensing devices continuously monitor the actual luminance of light emitting devices, and the system automatically adjusts brightness compensation gain based on the detected deterioration. This closed-loop feedback enables real-time compensation for luminance decay, allowing continuous operation while maintaining display quality.
Solution Approach 2:
The system dynamically changes the brightness compensation gain parameter based on detected luminance deterioration. By adjusting this parameter over time, the system compensates for the gradual decrease in light emission luminance, enabling continuous display operation without permanent performance degradation.
2Illumination intensity
If brightness compensation is performed frequently, then display quality is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic sensing stages where light sensing devices are activated at specific intervals to detect luminance deterioration. During non-sensing periods, the system operates in normal display mode with lower power consumption. This periodic action maintains display quality through timely compensation while minimizing overall power usage compared to continuous sensing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method effectively compensates for the decrease in light emission luminance over time, ensuring consistent display quality by dynamically adjusting the brightness compensation gain, thus extending the lifespan of the display panel.
Implementation Method 1
each of light sensing devices being used for sensing light emitted by at least one of the light emitting devices
Data Source
AI summary
A display method and a display device of a display panel are provided, and belongs to the field of display technology. The display panel of the disclosure includes a light emitting device and a light sensing device. Each light sensing device is used for sensing the light emitted by at least one light emitting device. The display data of each light emitting device in the display panel is obtained according to a target brightness value and a brightness compensation gain value. The method includes: in a sensing stage, obtaining an actual brightness value of the light emitting device to be compensated according to the sensing data generated by the light sensing device, and setting a brightness compensation gain of the light emitting device to be compensated according to at least the obtained actual brightness value and the target brightness value.