Display Panel Sub-Data Line Structure for High-Transmittance Regions
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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, but existing solutions do not adequately meet the requirements.
Innovation Solution
The display panel is designed with a structure 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 light-transmission region, allowing for improved light passage and integration of photosensitive elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If data lines are arranged in conventional display panels, then wiring coverage is achieved, but light transmittance in the photosensitive-element integration region is insufficient
Solution Approach 1:
The data lines are divided into multiple sub-data lines (first sub-data line, second sub-data line, third sub-data line) that are arranged in different layers. This segmentation allows the wiring structure to be distributed across multiple levels, reducing the blocking effect on light transmission while maintaining electrical connectivity to pixel circuits.
Solution Approach 2:
The patent transitions from a planar two-dimensional wiring layout to a three-dimensional multi-layer structure. Sub-data lines are positioned at different vertical levels (first, second, and third sub-data lines in different layers), enabling light to pass through gaps between layers while data signals are transmitted through the stacked conductive paths.
2Illumination intensity
If the display region is fully utilized for pixel circuits, then screen-to-body ratio is improved, but light transmittance for photosensitive elements cannot be sufficiently optimized
Solution Approach 1:
The wiring structure is optimized specifically for the photosensitive-element integration region (first display region) compared to other display regions. In the first display region, sub-data lines are arranged with greater spacing and distributed across multiple layers to maximize light transmission, while other regions may use more conventional dense wiring patterns.
Solution Approach 2:
The patent applies an excessive number of sub-data lines (three or more layers) in the photosensitive-element integration region compared to what would be sufficient in conventional display regions. This over-engineering of the wiring structure in specific areas ensures that light transmittance requirements are met without compromising the overall display area.
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, and a plurality of second 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. The plurality of first data lines are connected to the plurality of first pixel circuits and the plurality of third pixel circuits.