Display Panel Pixel Circuit Layout for Uniform Camera-Area Brightness
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Solution Overview
Problem
The design of mobile terminal products with notch, water drop, or holed screens results in varying brightness across the display area due to the removal of pixel drive circuits, leading to a screen split phenomenon and poor display effect.
Innovation Solution
A display panel design with a first display area having higher light transmittance than a surrounding second area, featuring a light-emitting element layer and pixel circuit layer with insulated, stacked intermediate film layers and spaced second metal layers to reduce area differences of continuous portions, thereby reducing performance differences and eliminating screen splits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pixel drive circuit is removed from a specific location to integrate a camera component, then the camera integration is achieved, but the brightness uniformity deteriorates causing screen split phenomenon
Solution Approach 1:
The patent applies local quality by creating a first display area with different structure characteristics (higher light transmittance) compared to the second display area. Specifically, the pixel drive circuits are removed only in the first display area where the camera is integrated, while maintaining them in the second display area. This localized structural differentiation ensures that the camera integration area has optimized light transmission properties, thereby maintaining overall brightness uniformity across the display screen.
2Area of stationary object
If the pixel drive circuit is removed to achieve full-screen display, then the display area is increased, but the component performance uniformity deteriorates
Solution Approach 1:
The patent implements local quality by differentiating the structural configuration between the first display area (with removed pixel drive circuits) and the second display area (with retained pixel drive circuits). This localized approach allows the display area to be maximized while maintaining component performance uniformity in the second display area, and optimizing light transmission in the first display area for camera integration.
Solution Approach 2:
The patent applies equipotentiality by ensuring that both the first and second display areas maintain comparable light transmission characteristics despite their structural differences. By carefully designing the first display area to have higher light transmittance (since it lacks pixel drive circuits), the overall light transmission uniformity across the entire display screen is achieved, creating equipotential optical conditions.
3Illumination intensity
If the film layer area difference is reduced to eliminate screen split, then the brightness uniformity is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the display screen into two distinct display areas with different structural configurations. The first display area has removed pixel drive circuits for camera integration, while the second display area maintains complete pixel drive circuits. This segmentation allows each area to be optimized independently, achieving brightness uniformity while managing manufacturing complexity through modular design.
Data Source
AI summary
A display panel and a display apparatus, including: a first display area and a second display area at least partially surrounding the first display area, the second display area includes: a light-emitting element layer including a plurality of sub-pixels disposed in an array; and a pixel circuit layer being arranged with a plurality of pixel circuits and including a plurality of intermediate film layers, the plurality of intermediate film layers are arranged in a stacked manner and insulated from each other, each of the intermediate film layers includes a plurality of modules disposed to be insulated from each other.