Display Panel Via-Overlap Layout for Under-Screen Camera Clarity
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Solution Overview
Problem
The display effect in regions with under-screen cameras is poor due to the integration of a full display with a camera, leading to suboptimal performance.
Innovation Solution
A display panel design with specific transparent conductive layer configurations, including multiple transparent conductive layers and via holes, to optimize light transmission and reduce overlapping areas, enhancing the display effect in camera regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a full display with under-screen camera is integrated, then the screen-to-body ratio is improved, but the display effect in the camera region deteriorates
Solution Approach 1:
The patent applies local quality by creating different transparent conductive line configurations in different regions of the display. Specifically, the first transparent conductive lines in the first region have different overlapping area constraints with via holes compared to the second transparent conductive lines in the second region. This allows optimization of light transmission locally in the camera region while maintaining overall display performance.
Solution Approach 2:
The patent addresses the problem by transitioning from a two-dimensional planar conductive layer to a three-dimensional structure with multiple transparent conductive layers at different heights. The first and second transparent conductive lines are positioned at different vertical levels, allowing them to overlap in the horizontal plane while maintaining electrical isolation and optimizing light transmission in the camera region.
2Reliability
If transparent conductive lines overlap with via holes, then electrical connection is improved, but light transmittance in camera region deteriorates
Solution Approach 1:
The patent resolves this contradiction by using multiple transparent conductive layers positioned at different vertical heights. The first transparent conductive lines and second transparent conductive lines are separated in the vertical dimension, allowing light to pass through the camera region with minimal obstruction while maintaining electrical connections through the via holes that penetrate through the insulating layer between the layers.
Solution Approach 2:
The patent segments the transparent conductive network into multiple separate layers. Instead of having all conductive lines in a single plane, the conductive lines are divided into first transparent conductive lines in the first region and second transparent conductive lines in the second region, positioned at different vertical levels. This segmentation allows optimized light transmission in the camera region while maintaining electrical connectivity.
Data Source
AI summary
A display panel includes a substrate, an insulating layer, a metal layer, a first transparent conductive layer and a second transparent conductive layer. The insulating layer has at least one via hole in each of a second sub-pixel region and a fourth sub-pixel region. The first transparent conductive layer includes a plurality of first transparent conductive lines. The second transparent conductive layer includes a Plurality of second transparent conductive lines. A total overlapping area between an orthographic projection of a first transparent conductive line on the substrate and orthogonal projections, on the substrate, of all via holes, in the second sub-pixel region, of the insulating layer is less than a total overlapping area between an orthographic projection of a second transparent conductive line on the substrate and orthogonal projections, on the substrate, of all via holes, in the fourth sub-pixel region, of the insulating layer.