Display Substrate Layout for Under-Screen Sensor Light Transmission
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Solution Overview
Problem
Current display screens in electronic devices face challenges in achieving a full-screen design due to the presence of components like cameras and light sensors, which occupy display regions and hinder light transmittance, making it difficult to maintain both display functionality and sensor operation.
Innovation Solution
A display substrate design featuring a light transmitting display region with a unique arrangement of sub-pixel arrays and pixel circuits, where light emitting elements are separated from pixel circuits to enhance light transmittance, and connection lines are routed to allow for increased light transmission while maintaining display functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If camera and light sensor components are placed in the display region, then sensor operation is enabled, but light transmittance is blocked and display functionality is compromised
Solution Approach 1:
The display region is divided into a first display region containing light emitting elements and a second display region containing pixel circuits. This segmentation allows light to pass through the first display region to the sensor while the pixel circuits in the second display region control the light emitting elements, resolving the conflict between sensor operation and light transmittance.
Solution Approach 2:
Connection lines are routed in different directions (first direction and second direction that cross each other) to connect pixel circuits in the second display region to light emitting elements in the first display region. This multi-directional routing allows sensor placement in the display region while maintaining both light transmittance and display functionality through spatial reconfiguration of electrical connections.
2Ease of operation
If pixel circuits are placed in the display region to drive light emitting elements, then display functionality is maintained, but light transmittance is reduced
Solution Approach 1:
The display region is segmented into a first display region for light emission and a second display region for pixel circuit placement. This separation allows the first display region to maintain high light transmittance for sensor operation while the second display region houses the pixel circuits needed for display control.
Solution Approach 2:
Connection lines extend in multiple directions (first direction and second direction crossing each other) to bridge the separated first and second display regions. This multi-directional connection approach maintains display functionality by enabling pixel circuits to control light emitting elements despite their spatial separation, while preserving light transmittance in the first display region.
3Ease of operation
If connection lines are routed to connect pixel circuits and light emitting elements in separated regions, then display functionality is maintained, but device complexity increases
Solution Approach 1:
Connection lines are routed in two crossing directions (first direction and second direction) to connect pixel circuits in the second display region to light emitting elements in the first display region. This multi-directional routing strategy, while adding some complexity, enables efficient spatial utilization and maintains display functionality through systematic electrical connections between separated functional regions.
Data Source
AI summary
A display substrate and a display device. The display substrate includes a display region, a first connecting wire, and a second connecting wire. A first display region includes a first sub-pixel array, including a plurality of light emitting elements arranged in an array, and the plurality of light emitting elements include a first light emitting element and a second light emitting element. The second display region includes a first pixel circuit array, including a plurality of first pixel circuit units, and the plurality of pixel circuit units include a first pixel circuit (D10) and a second pixel circuit. The first connecting wire (151) is connected to the first pixel circuit and the first light emitting element. The second connecting wire is connected to the second pixel circuit and the second light emitting element. The second connecting wire extends in a first direction, the first connecting wire extends in a second direction.