Display Panel Layout for Under-Display Camera Wiring Space
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Solution Overview
Problem
The challenge of integrating a light-receiving device, such as a camera, into the display area of a display device is exacerbated by the decreasing non-display area on the front side, making it difficult to accommodate the necessary wiring for pixel driving and affecting the bezel area.
Innovation Solution
A display panel design that reduces the number of subpixels per unit area in specific display areas adjacent to the light-receiving device, incorporating a common electrode with holes in the first display area and optimizing the arrangement of transistors and wirings to minimize the bezel area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the light-receiving device is positioned in the display area, then the bezel area can be reduced, but it becomes difficult to secure space for placing wiring for driving pixels
Solution Approach 1:
The display area is segmented into a first display area (with normal subpixel density) and a second display area (with reduced subpixel density). This segmentation allows the patent to allocate different regions for different functions: the first display area for normal display and the second display area for accommodating wiring and the light-receiving device, thereby resolving the conflict between reducing bezel area and providing space for wiring.
Solution Approach 2:
The patent applies local quality by having different subpixel densities in different regions of the display area. The second display area has a lower number of subpixels per unit area compared to the first display area, creating local variations in display quality to accommodate wiring and the light-receiving device while maintaining overall display functionality.
2Area of stationary object
If the number of subpixels per unit area is reduced in the second display area, then space for wiring and light-receiving device is secured, but display quality in that area is reduced
Solution Approach 1:
The patent accepts localized reduction in display quality in the second display area as a necessary trade-off to accommodate wiring and the light-receiving device. The first display area maintains normal subpixel density and display quality, while the second display area has reduced subpixel density, creating a differentiated quality landscape that satisfies both functional and aesthetic requirements.
Solution Approach 2:
The patent extracts the wiring and light-receiving device from the traditional bezel area and relocates them to the second display area with reduced subpixel density. This extraction allows the wiring to be positioned within the display area itself, reducing the bezel area while providing dedicated space for these components.
3Illumination intensity
If the common electrode is positioned to avoid overlapping the transmissive area, then transmittance for the light-receiving device is improved, but the common electrode coverage is reduced
Solution Approach 1:
The common electrode is positioned to avoid overlapping the transmissive area, creating local variations in electrode coverage. This local quality approach ensures that the transmissive area has high transmittance for the light-receiving device while other areas maintain normal common electrode coverage, optimizing both optical performance and electrical functionality.
Data Source
AI summary
Embodiments of the present disclosure relate to a display panel and a display device, and more particularly, a display panel and a display device capable of reducing a bezel area by reducing the number of subpixels per unit area of a second display area adjacent to a first display area in which the light-receiving device is located.