Under-screen Camera Display Panel with Vacant Sub-pixel Regions
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Solution Overview
Problem
The challenge in increasing the screen-to-body ratio of mobile devices is hindered by the presence of front-facing cameras, which causes color shift due to reduced pixel density and sub-pixel rendering algorithms in under-screen-camera solutions.
Innovation Solution
A display method that includes a first and second pixel arrangement unit, where the first unit has vacant sub-pixel regions and the second unit has filled sub-pixel regions, generating virtual pixels from image information, setting original components of vacant sub-pixel regions to zero, and calculating display components using specific formulas to prevent color shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If pixel density is reduced and light transmittance is increased to accommodate under-screen camera, then screen-to-body ratio is improved, but color shift occurs in local transparent region
Solution Approach 1:
The patent applies different pixel arrangements to different regions of the display. Specifically, it uses a first pixel arrangement pattern in regions where color accuracy is critical and a second pixel arrangement pattern in regions where transparency is needed for the under-screen camera. This local differentiation allows the display to maintain color accuracy in most areas while providing the necessary light transmittance for the camera in specific local regions.
Solution Approach 2:
The patent segments the display area into multiple pixel arrangement units, where each unit can independently adopt different pixel arrangement patterns. By dividing the display into these manageable units, the system can selectively apply transparent regions at specific locations without compromising the overall color accuracy of the display, thus resolving the contradiction between screen-to-body ratio and color accuracy.
2Measurement precision
If sub-pixel rendering algorithm is used to compensate for reduced pixel density, then screen resolution is maintained, but color shift is introduced in transparent regions
Solution Approach 1:
Instead of applying sub-pixel rendering uniformly across the entire display, the patent implements different pixel arrangement patterns in different regions. The first pixel arrangement pattern is used in regions where color accuracy is paramount, avoiding the color shift issues associated with sub-pixel rendering. The second pattern is used in transparent regions where the under-screen camera is located, accepting lower resolution in exchange for camera functionality and color accuracy in that specific local area.
3Illumination intensity
If vacant sub-pixel regions are created for under-screen camera, then light transmittance is increased, but color representation becomes inaccurate
Solution Approach 1:
The patent creates vacant sub-pixel regions (first pixel arrangement units) in specific locations where the under-screen camera requires high light transmittance. However, it simultaneously maintains complete pixel arrangements (second pixel arrangement units) in surrounding areas to ensure accurate color representation. This localized approach to transparency allows the system to optimize light transmittance where needed while preserving color accuracy in the overall display.
Solution Approach 2:
By segmenting the display into multiple pixel arrangement units with different transparency characteristics, the patent enables selective optimization of light transmittance in camera regions without compromising color representation in other regions. The segmented structure allows each unit to be independently optimized for its specific function.
Data Source
AI summary
The disclosure provides a display panel and a display method, the display panel includes multiple pixel arrangement units including a first pixel arrangement unit and a second pixel arrangement unit, at least a portion of the sub-pixel regions of the first pixel arrangement unit are vacant sub-pixel regions, each sub-pixel region of the second pixel arrangement unit has one sub-pixel, the display method includes: generating an original image composed of multiple virtual pixels, adjacent virtual sub-pixels in any two adjacent virtual pixels correspond to a single sub-pixel region; controlling color original components of the virtual pixels corresponding to the vacant sub-pixel regions to be 0, acquiring color original components of the virtual sub-pixels in remaining virtual pixels; calculating a display component of each sub-pixel according to the corresponding color original component of a same color in at least one virtual pixel corresponding thereto.