Display Panel Subpixel Segmentation for In-Display Camera Integration
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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 wiring for pixel driving and necessitating a reduction in bezel area.
Innovation Solution
A display panel design that reduces the number of subpixels per unit area in a second display area adjacent to a first display area housing the light-receiving device, with a common electrode featuring holes in the first display area to enhance transmittance and minimize bezel size.
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 divided into a first display area with normal subpixel density and a second display area with reduced subpixel density. This segmentation allows the wiring area to be allocated in the second display area where fewer subpixels require less wiring space, enabling the light-receiving device to be positioned in the first display area without compromising wiring accessibility.
Solution Approach 2:
Different regions of the display area are assigned different subpixel densities according to their functional requirements. The first display area maintains high subpixel density for quality display, while the second display area uses reduced subpixel density to provide space for wiring and the light-receiving device, optimizing both display quality and device integration.
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 resolution in that area is reduced
Solution Approach 1:
The display panel employs non-uniform subpixel density distribution where the first display area maintains high density for high-resolution display, while the second display area has reduced density to accommodate wiring and the light-receiving device. This local differentiation ensures that resolution is optimized where needed while sacrificing minimal display area for functional requirements.
Solution Approach 2:
The display area is segmented into two distinct regions with different subpixel densities. The first display area is dedicated to high-quality display output, while the second display area serves as a functional zone with reduced subpixel count to provide necessary space for wiring and the light-receiving device, thereby resolving the conflict between display resolution and component accommodation.
3Illumination intensity
If the common electrode is positioned to avoid overlapping the transmissive area, then light transmittance is improved, but the electrode layout becomes more complex
Solution Approach 1:
The common electrode is positioned to avoid overlapping the transmissive area where light must pass through to reach the light-receiving device. This local adjustment of electrode placement in the first display area maximizes light transmittance while the electrode is extended to cover the second display area where reduced subpixel density provides sufficient space, thereby achieving high transmittance without excessive complexity.
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.