Under-Display Camera Display Compensation for Pixel Attenuation
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Solution Overview
Problem
The display effect of areas with under-display cameras in terminal devices becomes inconsistent with areas without cameras over time, due to differing pixel attenuation speeds, affecting the overall display quality.
Innovation Solution
A compensation method and apparatus that acquire the attenuation compensation and accumulation amounts for each sub-pixel in the display area with the under-display camera, determining a pixel compensation amount to compensate each sub-pixel, thereby improving display consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If special pixel arrangement and drive modes are used in the under-display camera area to improve transmittance, then the transmittance of the camera area is improved, but the pixel attenuation speed in the camera area becomes larger than in non-camera areas, causing display inconsistency
Solution Approach 1:
The patent applies local quality by implementing different compensation strategies for different regions of the display screen. Specifically, it divides the screen into a first area (with under-display camera) and a second area (without under-display camera), and applies region-specific compensation parameters and formulas to address the different attenuation characteristics of each area, thereby maintaining overall display consistency while preserving the improved transmittance in the camera area
Solution Approach 2:
The patent employs parameter changes by dynamically adjusting compensation parameters based on usage time and region. It calculates different compensation values for the first area and second area based on their respective attenuation speeds, and updates these parameters over time to counteract the differential aging effects, thus resolving the display inconsistency caused by the initial parameter configuration
2Adaptability or versatility
If the pixel arrangement is optimized for under-display camera transmittance, then camera functionality is improved, but display effect consistency between camera and non-camera areas deteriorates over time
Solution Approach 1:
The patent implements local quality by creating region-specific compensation mechanisms. It identifies the first area (camera region) and second area (non-camera region) with different attenuation characteristics, and applies tailored compensation formulas and parameters to each region, allowing the display to maintain both camera functionality and overall visual consistency
Solution Approach 2:
The patent employs feedback by continuously monitoring usage time and calculating real-time compensation values. It uses the usage time as feedback to update compensation parameters dynamically, adjusting the display output in the camera area based on the accumulated attenuation to maintain consistency with non-camera areas over time
Data Source
AI summary
A compensation method for a display area with an under-display camera includes acquiring the attenuation compensation amount of each sub-pixel between each of sub-pixels of the display area with the under-display camera and each of sub-pixels of a non-display area without the under-display camera in a display screen at the current moment, where the sub-pixels include a red sub-pixel, a green sub-pixel, and a blue sub-pixel; acquiring the attenuation accumulation amount of each sub-pixel of each pixel in the display area with the under-display camera; determining the pixel compensation amount of each sub-pixel of each pixel in the display area with the under-display camera according to the attenuation compensation amount and the attenuation accumulation amount; and compensating each sub-pixel of each pixel in the display area with the under-display camera according to the pixel compensation amount.