Display Panel Circuit Compression for Under-Screen Camera Areas
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Solution Overview
Problem
Existing display technologies face challenges in achieving normal display functionality while maintaining high light transmittance in light-transmissive areas, particularly when integrating under-screen cameras, as compressing pixel driving circuits to create larger light-transmissive areas increases structural complexity and manufacturing difficulties.
Innovation Solution
The display panel design includes a first display area with a light-transmissive area and a compression area, where the number of light-emitting units matches the number of pixel driving circuits, allowing for efficient light transmittance and camera integration by compressing pixel driving circuits in the column direction, maintaining a larger external area for camera installation without significantly impacting layout design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If pixel driving circuits are compressed to create larger light-transmissive areas, then light transmittance is improved, but device complexity increases
Solution Approach 1:
The patent compresses pixel driving circuits in the column direction (vertical dimension) to create light-transmissive areas, while maintaining row-directional layout integrity. This dimensional compression approach allows light to pass through uncompressed row-directional structures while keeping circuit functionality intact through column-directional compression.
Solution Approach 2:
Different regions of the display panel are assigned different functions: some areas contain compressed pixel driving circuits for driving functionality, while other areas are designed as light-transmissive regions for camera integration. This local differentiation allows simultaneous optimization of display performance and camera integration without uniform complexity throughout the structure.
2Adaptability or versatility
If pixel driving circuits are compressed to create larger light-transmissive areas, then camera integration is improved, but manufacturing difficulty increases
Solution Approach 1:
The display panel structure is segmented into distinct functional zones: pixel driving circuit regions with column-directional compression and light-transmissive regions without compression. This segmentation allows independent optimization of each zone for its specific function while simplifying the manufacturing process through modular design principles.
Solution Approach 2:
The patent employs asymmetric compression only in the column direction for pixel driving circuits, while maintaining symmetric, uncompressed structures in the row direction. This asymmetric approach creates necessary asymmetry for camera integration while preserving manufacturing symmetry in critical display regions, thereby reducing overall manufacturing difficulty.
3Adaptability or versatility
If light-transmissive area is increased for under-screen camera, then camera performance is improved, but display area is reduced
Solution Approach 1:
The patent creates light-transmissive areas through column-directional compression of pixel driving circuits, effectively adding vertical dimensionality to the light transmission path. This allows light to pass through compressed column structures without sacrificing horizontal display area, thereby supporting under-screen camera functionality while maintaining display size.
Data Source
AI summary
A display panel and a display device are described. The display panel includes a first display area, the first display area includes a first external area and a first compression area, and the first compression area is located at a side in a first direction of the first external area, wherein the first direction is parallel to the data line. The display panel further includes a plurality of first light-emitting units and a plurality of first pixel driving circuits.