Under-Display Camera Brightness Adjustment
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Solution Overview
Problem
Existing image display technologies face challenges in maintaining consistent display brightness between regions with under-screen image capturing devices and the remaining regions of the screen, leading to poor user experience.
Innovation Solution
A method and device for adjusting display brightness by detecting the first and second display brightness within the region with the under-screen image capturing device and the remaining region, respectively, and adjusting the grayscale brightness in the first region to match the second region, thereby reducing or eliminating brightness differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different pixel designs are adopted for the CUP region and the AA region to improve light transmittance in the FOV region, then image capture quality is improved, but display brightness uniformity deteriorates
Solution Approach 1:
The patent applies local quality by implementing region-specific pixel designs where the CUP region uses transparent pixels with higher light transmittance for image capture, while the AA region uses standard pixels for display. This allows each region to have optimized characteristics for its specific function, resolving the contradiction between capture quality and display uniformity through localized optimization rather than uniform design across the entire screen.
Solution Approach 2:
The patent changes the light transmittance parameter of pixels in the CUP region to be higher than those in the AA region. By adjusting this physical parameter differently across regions, the system achieves both improved image capture through the display and maintains functional display capabilities, thereby resolving the brightness uniformity issue while preserving capture quality.
2Use of energy by moving object
If the light transmittance in the FOV region is increased to enable normal image capture, then image capture function is improved, but display brightness difference between regions increases
Solution Approach 1:
The patent segments the display screen into two distinct regions: the CUP region with high light transmittance for image capture and the AA region with standard transmittance for display. This segmentation allows the system to optimize light transmission properties independently in each region, enabling the CUP region to capture images effectively while the AA region maintains normal display brightness, thus resolving the contradiction through spatial division.
3Area of stationary object
If full-screen display is implemented including the FOV region, then screen occupation ratio is improved, but display brightness uniformity deteriorates
Solution Approach 1:
The patent implements multi-functionality by enabling the CUP region to serve dual purposes: displaying images during normal operation and capturing images when needed. This allows the entire screen area to be utilized for display purposes while specific regions can be activated for capture functions, achieving both full-screen display coverage and image capture capability without compromising brightness uniformity in the display mode.
Data Source
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AI summary
The disclosure relates to a method and a device for adjusting display brightness of a screen and a storage medium. The method includes detecting (102) first display brightness within a first display region and detecting second display brightness within a second display region when a display screen of a terminal is displaying an image. A under-screen image capturing device is located within the first display region. The method further includes determining grayscale brightness within the first display region when the display screen is displaying the image and adjusting (102) grayscale brightness within the first display region based on the first display brightness and the second display brightness to allow adjusted grayscale brightness within the first display region to be consistent with grayscale brightness within the second display region.