Compensation Pixel Electrodes for Special-Shaped Display Edge Coverage
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Solution Overview
Problem
Conventional display panels with special-shaped areas often lack pixels at the edges, resulting in a zigzag display configuration and poor display quality due to incomplete pixel coverage.
Innovation Solution
Incorporating smaller compensation pixel electrodes and maintaining the existing thin-film transistor arrangement, with the compensation pixel electrodes being electrically connected to thin-film transistors without overlapping projections, to fill in the edge areas and improve display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complete pixels are kept in the special-shaped area, then pixel coverage is improved, but the edge areas cannot be filled resulting in zigzag display configuration
Solution Approach 1:
The pixel electrode is divided into two types: first pixel electrodes for complete pixels and second pixel electrodes (compensation pixel electrodes) for edge areas. This segmentation allows different regions to be optimized independently, enabling complete pixels in main areas and simplified pixel structures at edges, thereby achieving both good pixel coverage and smooth edge display.
Solution Approach 2:
Different pixel electrode structures are applied to different regions: complete pixel electrodes in the main display area and smaller compensation pixel electrodes at the special-shaped edges. This local differentiation ensures optimal display quality in each region while enabling smooth edge transitions without zigzag artifacts.
2Manufacturing precision
If compensation pixel electrodes are added to fill edge areas, then display quality is improved, but the area occupied by pixel electrodes increases
Solution Approach 1:
The compensation pixel electrodes at edges are designed with smaller area compared to complete pixels, optimizing the balance between filling edge areas and maintaining overall display quality while minimizing area occupation.
3Manufacturing precision
If more pixel electrodes are added to cover edge areas, then pixel coverage is improved, but the complexity of thin-film transistor arrangement increases
Solution Approach 1:
The thin-film transistors serve dual functions: driving both complete first pixel electrodes and smaller second compensation pixel electrodes. This universal design allows the same transistor structure to control different pixel types, avoiding the need for separate transistor arrangements and maintaining manufacturing simplicity.
Data Source
AI summary
Provided are a display panel and a display device. The display panel includes a substrate, a plurality of pixel electrodes on the substrate, and a plurality of thin-film transistors on the substrate; each pixel electrode includes a plurality of first pixel electrodes and at least three second pixel electrodes as compensation pixel electrodes, an area of the substrate occupied by each compensation pixel electrode is less than an area of the substrate occupied by each first pixel electrode; the thin-film transistors are arranged in row in first direction and column in second direction, the thin-film transistors are electrically connected with the pixel electrodes in one-to-one correspondence, and orthographic projection of at least one second pixel electrode on the substrate does not overlap with orthographic projection of at least one thin-film transistor correspondingly connected with the at least one of the at least three second pixel electrodes on the substrate.