Display Substrate Pixel Layout for Under-Display Camera Clarity
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Solution Overview
Problem
Existing display technologies face challenges in achieving a high screen-to-body ratio while maintaining effective data signal transmission to pixel driving circuits, which can occupy light transmission areas and impact camera photography effects.
Innovation Solution
The display substrate incorporates a base substrate with distinct display and bezel areas, featuring light emitting devices and pixel driving circuits arranged in an array. Data lines are shared between first and second pixel driving circuits, avoiding winding in the display area and improving camera photography effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If pixel driving circuits are arranged in the display area to maintain high light emitting device density, then the light transmission area is reduced, but the camera photography effect deteriorates
Solution Approach 1:
The pixel driving circuits are moved from the display area (2D plane) to the bezel area, utilizing the third dimension of spatial arrangement. This dimensional transition allows the circuits to be positioned outside the light transmission path while maintaining electrical connection to the light emitting devices through extended connection lines, thus resolving the conflict between circuit placement and camera effect.
Solution Approach 2:
Connection lines serve as intermediaries between the pixel driving circuits in the bezel area and the light emitting devices in the display area. These extended connection lines transmit control signals and power without occupying the light transmission area, enabling the circuits to function effectively while preserving camera photography quality.
2Object-affected harmful factors
If pixel driving circuits are arranged in the bezel area to improve camera photography effect, then the light transmission area is maintained, but the data signal transmission efficiency deteriorates
Solution Approach 1:
Data lines are pre-arranged in the display area and extend into the bezel area to establish direct electrical connections with the pixel driving circuits before the circuits are fully positioned. This preliminary routing of data transmission paths minimizes signal transmission distance and maintains high transmission efficiency despite the circuits being located in the bezel area.
3Reliability
If data lines are routed through the display area to connect pixel driving circuits, then the connection is established, but the light transmission area is blocked
Solution Approach 1:
The data transmission path is extended from the 2D display area into the 3D bezel area, allowing data lines to reach pixel driving circuits without traversing through the light transmission region. This spatial extension maintains reliable electrical connections while preserving optical transparency in the display area.
Data Source
AI summary
The display substrate includes: a display area and a bezel area, the display area including a first display area and a second display area; first light emitting devices in the first display area and second light emitting devices in the second display area; first pixel drive circuits in the bezel area and second pixel drive circuits in the second display area, the first pixel drive circuits are connected to the first light emitting devices, and the second pixel drive circuits are connected to the second light emitting devices; and shift registers in the bezel area, one shift register is connected with the first pixel driving circuits connected with one row of the first light emitting devices and the second pixel driving circuits connected with one row of the second light emitting devices.