Display Substrate Wiring Layout for High-Transmittance Under-Screen Pixels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display screens face challenges in achieving full-screen designs due to components like cameras and sensors occupying display areas, leading to reduced light transmittance and visual effects, and existing solutions compromise display quality with lower PPI and increased grating effects.
Innovation Solution
A display substrate design with interconnected first and second connection lines on opposite sides of light-emitting elements, reducing wiring space and improving light transmittance while maintaining high resolution and reducing grating effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If connection lines are arranged on one side of light-emitting elements, then wiring layout is simple, but light transmittance is reduced and grating effect increases
Solution Approach 1:
The connection lines are distributed on both sides of the light-emitting elements in the vertical direction, transitioning from a one-sided arrangement to a two-sided arrangement. This dimensional change allows connection lines to be positioned away from the light transmission path, improving light transmittance while reducing grating effects, without complicating the wiring layout excessively.
2Device complexity
If connection lines are positioned close to light-emitting elements for compact wiring, then device complexity is reduced, but light transmittance decreases
Solution Approach 1:
By utilizing the vertical dimension to position connection lines on both sides of the light-emitting elements, the patent achieves compact wiring without blocking the light transmission path. This spatial arrangement improves light transmittance while keeping the wiring structure relatively simple.
Solution Approach 2:
The connection lines are segmented into multiple parts (first connection lines and second connection lines) positioned on different sides of the light-emitting elements. This segmentation allows each connection line to be optimized for its specific position, improving overall light transmittance while maintaining wiring simplicity.
3Reliability
If display area is reduced to accommodate camera components, then sensor functionality is maintained, but display quality and PPI are compromised
Solution Approach 1:
The patent utilizes the vertical dimension to arrange connection lines on both sides of the light-emitting elements, which allows for optimized wiring layout that reduces grating effects and maintains display quality even when camera components occupy display area. This dimensional arrangement helps preserve effective display area and PPI.
Data Source
AI summary
A display substrate and a display device including a base substrate, a plurality of first connection wirings, and a plurality of second connection wirings. The base substrate includes a display area including a first display area and a second display area, the first display area includes a plurality of first light-emitting devices and a plurality of second light-emitting devices, and the second display area includes a plurality of first pixel circuits and a plurality of second pixel circuits. At least a portion of the plurality of first connection wirings extends along a first direction, at least a portion of the plurality of second connection wirings extends along the first direction, at least a portion of the plurality of first connection wirings is located on a first side of a row provided with first electrodes of the plurality of first and second light-emitting devices in a second direction.