Display Panel Wiring Layout for Under-Screen Light Transmittance
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Solution Overview
Problem
Current display panels face challenges in achieving high light transmittance in the photosensitive-element integration region, which is essential for better performance of front cameras and infrared sensors, particularly in full-screen solutions where the light transmittance needs to be improved.
Innovation Solution
The display panel is designed with a configuration that includes multiple display regions, where the first display region has higher light transmittance than the third, with pixel circuits and data lines arranged to minimize wiring within the effective light-transmission region, allowing for better integration of photosensitive elements without compromising display functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If data lines are arranged in a conventional manner in the photosensitive-element integration region, then wiring coverage is sufficient for display functionality, but light transmittance is reduced due to excessive wiring
Solution Approach 1:
The data lines are divided into multiple segments (first data line segments, second data line segments, third data line segments) that are arranged in different orientations. This segmentation allows the wiring to be distributed more efficiently across the display region, reducing the concentration of wiring in any single area and thereby improving light transmittance while maintaining adequate wiring coverage for display functionality.
Solution Approach 2:
The patent introduces a multi-directional arrangement of data line segments, utilizing different spatial dimensions and orientations (first direction, second direction, third direction) to distribute the wiring. This dimensional approach reduces the wiring density in the photosensitive-element integration region by spreading conductors across multiple directional pathways rather than concentrating them in a single plane.
2Area of stationary object
If the display region is fully utilized for display elements, then display area is maximized, but light transmittance in the photosensitive-element integration region is compromised
Solution Approach 1:
The patent applies different wiring arrangements to different regions of the display panel. In the photosensitive-element integration region, data line segments are arranged in multiple directions with optimized spacing to maximize light transmittance. In other display regions, conventional wiring arrangements are used to maintain display functionality. This local differentiation allows the display area to be fully utilized while ensuring adequate light transmittance where photosensitive elements are integrated.
Data Source
AI summary
A display panel includes a first display region, a second display region, a third display region, a plurality of first pixel circuits, a plurality of second pixel circuits, a plurality of third pixel circuits, a plurality of first data lines, a plurality of second data lines, and a plurality of third data lines. The second display region at least partially surrounds the first display region, the third display region at least partially surrounds the second display region and the first display region, and a light transmittance of the first display region is greater than a light transmittance of the third display region. The plurality of first pixel circuits and the plurality of second pixel circuits are in the second display region, and the plurality of third pixel circuits is in the third display region.