Display Panel Transmission Area Routing for Light Transmittance
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Solution Overview
Problem
Display devices face challenges in integrating components like sensors or cameras within the display area without compromising image quality or resolution, particularly due to issues with light transmittance and image distortion caused by data lines and metal layers.
Innovation Solution
A display panel design with a substrate featuring distinct areas for pixel groups, connection lines, and a transmission area that allows for the integration of components by using third connection lines to detour around the transmission area, ensuring high light transmittance and preventing image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data lines are arranged to extend across the display area to connect pixel groups, then electrical connectivity is improved, but light transmittance deteriorates and image distortion occurs
Solution Approach 1:
The display area is divided into multiple regions (first area with first pixel group, second area with second pixel group, and third area) separated by a transmission area. Data lines are segmented into first connection lines extending in a first direction and second connection lines extending in a second direction, with the transmission area creating a discontinuity that allows light to pass through while maintaining electrical connectivity through the third connection lines in the third area.
Solution Approach 2:
The patent introduces a third dimension by extending connection lines in multiple directions (first direction and second direction that are not parallel) and using third connection lines in a third area to bridge gaps. This multi-directional approach allows electrical connectivity to be maintained while creating transmission paths for light, effectively solving the contradiction between connectivity and transmittance.
2Adaptability or versatility
If components are integrated within the display area, then functionality is improved, but image quality deteriorates
Solution Approach 1:
The display panel is segmented into distinct functional zones: a first area containing pixel groups for display, a third area containing components such as sensors or cameras, and a transmission area that facilitates optical passage. This spatial segmentation allows components to be integrated without degrading the image quality in the display area, as the transmission area acts as an optical bridge that maintains image quality while enabling component integration.
3Reliability
If connection lines are extended to connect all pixel groups, then electrical connectivity is improved, but light transmittance deteriorates
Solution Approach 1:
Connection lines are segmented into multiple sets extending in different directions (first connection lines in a first direction, second connection lines in a second direction) with strategic gaps created by the transmission area. This segmentation allows light to transmit through the transmission area while connection lines maintain electrical connectivity through the third area, resolving the contradiction between connectivity and illumination.
Solution Approach 2:
The transmission area serves as an intermediary zone that allows light to pass through while connection lines are routed through the third area to maintain electrical connectivity. This intermediary transmission area acts as a mediator between the pixel groups, enabling both optical transmission and electrical connectivity without one compromising the other.
Data Source
AI summary
A display panel includes a substrate including a first area including a transmission area, a second area, and a third area, the second area and the third area being adjacent to the first area; a first pixel group and a second pixel group each disposed in the first area, the transmission area being disposed between the first pixel group and the second pixel group; first connection lines extending in a first direction and electrically connected to first pixels of the first pixel group; second connection lines extending in the first direction and electrically connected to second pixels of the second pixel group; and third connection lines extending in a second direction and disposed in the third area, the third connection lines being electrically connected to the first connection lines and the second connection lines.