Pixel Structure Virtual Edges Transmitting Region
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Solution Overview
Problem
High-resolution display panels face manufacturing difficulties and high costs due to the need for precise pixel sizes and intervals, which affects light transmittance and fingerprint identification accuracy in under-screen fingerprint identification technology.
Innovation Solution
A pixel structure with repetitively arranged sub-pixels of different colors, featuring virtual edges that form transmitting regions to increase light transmittance, combined with a mask plate design that simplifies manufacturing and evaporative processes, and a display panel configuration that includes a photosensitive device for improved fingerprint identification accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pixel sizes and intervals are reduced to increase resolution, then the resolution is improved, but the manufacturing precision requirement increases and manufacturing difficulty increases
Solution Approach 1:
The pixel structure is divided into multiple sub-pixels (first sub-pixel, second sub-pixel, third sub-pixel) with different colors arranged in a repeating unit. This segmentation allows for better light transmission through the gaps between sub-pixels while maintaining high resolution, as the smaller individual sub-pixel sizes create more transmitting regions without requiring the entire pixel structure to be miniaturized to the same extent
Solution Approach 2:
Different regions of the pixel structure have different properties: the sub-pixel regions are designed for light emission and color display, while the gaps between sub-pixels (transmitting regions) are optimized for light transmission. This local differentiation allows the display to maintain high resolution in display regions while having high transmittance in the transmitting regions, reducing the overall manufacturing precision burden
2Measurement precision
If the pixel sizes and intervals are reduced to increase resolution, then the resolution is improved, but the manufacturing cost increases
Solution Approach 1:
By segmenting the pixel into multiple sub-pixels with different colors, the structure creates natural transmitting regions between them. This segmentation approach achieves high resolution without requiring the entire pixel array to be densely packed with minimal spacing, thereby reducing manufacturing complexity and cost while maintaining high resolution
Solution Approach 2:
The pixel structure serves multiple functions simultaneously: the sub-pixels provide color display functionality while the gaps between sub-pixels provide light transmission functionality for fingerprint sensing. This multi-functionality eliminates the need for separate structures for display and sensing, reducing overall device complexity and manufacturing cost
3Measurement precision
If the pixel structure is designed for high resolution with small pixel sizes, then the resolution is improved, but the light transmittance decreases
Solution Approach 1:
The pixel is segmented into multiple sub-pixels (first sub-pixel, second sub-pixel, third sub-pixel) with different colors, creating gaps between them that serve as transmitting regions. These gaps allow light to pass through to the photosensitive device below, maintaining high light transmittance even when the overall pixel density is high and individual pixel sizes are small
Solution Approach 2:
The invention utilizes the spatial dimension by arranging sub-pixels in a specific pattern within the pixel structure, creating vertical and horizontal gaps that form transmitting regions. This dimensional arrangement allows light to pass through the pixel structure in the vertical direction (from display to sensing layer) without requiring larger pixel sizes, thus maintaining both high resolution and high light transmittance
4Measurement precision
If the light transmittance is increased by spacing apart sub-pixels, then the fingerprint identification accuracy is improved, but the display area is reduced
Solution Approach 1:
The pixel is segmented into multiple sub-pixels with gaps between them, where the gaps serve as transmitting regions for fingerprint sensing. This segmentation allows the display area (sub-pixel regions) and sensing area (gap regions) to coexist within the same pixel footprint, improving fingerprint identification accuracy without requiring a separate dedicated sensing area that would reduce display area
Solution Approach 2:
The pixel structure is designed to perform both display and fingerprint sensing functions simultaneously. The sub-pixels provide color display while the gaps between sub-pixels provide light transmission for fingerprint sensing. This multi-functionality allows the same physical space to serve dual purposes, improving fingerprint identification accuracy without sacrificing display area, as the transmitting regions are integrated within the pixel structure rather than being separate
Data Source
AI summary
The present application relates to a pixel structure, a mask plate and a display panel. The pixel structure includes a plurality of repeating units arranged repetitively. Each of the repeating units includes a first sub-pixel, a second sub-pixel, and a third sub-pixel in different colors. Virtual edges of two adjacent sub-pixels in same color of adjacent repeating units are spaced apart from each other and form a transmitting region.