Under-Display Camera Pixel Rendering via Spatial Coordinate Filtering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices with under-display cameras (UDC) face image quality degradation and hardware resource wastage due to overlapping pixel rendering, which affects the performance and efficiency of image rendering in UDC regions.
Innovation Solution
A display device with a processing circuitry that selects and applies specific filters based on spatial coordinate values for pixel rendering in UDC and non-UDC regions, utilizing parallel rendering paths and dithering operations tailored to the pixel arrangement patterns of each region to prevent image quality degradation and resource wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera module is embedded under the display panel in the UDC region, then the display device can capture images through the display area, but image quality degradation occurs due to overlapping pixel rendering
Solution Approach 1:
The display panel is divided into multiple sub-regions within the UDC area, each with its own dedicated rendering filter. This segmentation allows different pixel arrangements to be handled by specialized filters, preventing image quality degradation from overlapping rendering operations.
Solution Approach 2:
Different rendering filters are applied to different sub-regions of the UDC area based on their specific pixel arrangement patterns. This local quality approach ensures that each region receives optimized rendering treatment, improving overall image quality while maintaining camera functionality.
2Manufacturing precision
If multiple filters are applied for pixel rendering in the UDC region, then image quality can be maintained, but hardware resources are wasted due to overlapping rendering operations
Solution Approach 1:
Rendering filters for each sub-region are pre-generated and stored based on the known pixel arrangement patterns. During operation, the appropriate pre-generated filter is selected and applied, eliminating the need for real-time filter generation and reducing overlapping rendering operations that waste hardware resources.
Solution Approach 2:
The system changes the parameter of filter selection based on the spatial coordinate and sub-region identification. By dynamically selecting the appropriate pre-generated filter for each sub-region, the system maintains image quality while avoiding redundant rendering operations and reducing hardware resource consumption.
3Adaptability or versatility
If the pixel arrangement pattern in the UDC region is made different from the non-UDC region, then camera functionality is enabled, but image quality degradation occurs in the UDC region
Solution Approach 1:
The system applies different rendering filters tailored to each sub-region's specific pixel arrangement pattern. This local quality approach allows the UDC region to have flexible pixel arrangements for camera functionality while maintaining high image quality through region-specific optimization.
Solution Approach 2:
The rendering system dynamically adapts to different pixel arrangement patterns in different sub-regions by selecting appropriate filters. This dynamic adaptation enables the UDC region to maintain both structural flexibility for camera integration and image quality through context-aware rendering.
Data Source
AI summary
A display device includes a display panel including an under display camera (UDC) region and a non-UDC region, the UDC region including a plurality of sub-regions, and processing circuitry configured to, receive image data, select at least one first filter from a plurality of filters based on a spatial coordinate value of the received image data, the plurality of filters corresponding to a respective sub-region of the plurality of sub-regions, and perform first pixel rendering for the UDC region based on the at least one first filter and the image data, and the at least one first filter is generated based on a pixel arrangement pattern of the UDC region.