Display Panel Pixel Layout for Under-Screen Camera Integration
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Solution Overview
Problem
Current methods for integrating a front camera under a display panel, such as digging a groove or punching a hole, result in areas where information cannot be displayed, hindering the achievement of a high screen-to-body ratio in electronic devices.
Innovation Solution
A display panel design with a light-transmittance gradient, featuring interconnected light-emitting structures in adjacent regions, allows for the integration of a photosensitive component like a camera under a screen while maintaining full-screen display capabilities by ensuring high light transmittance in specific areas and minimizing interference during vapor deposition processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a groove or hole is dug at the display panel position corresponding to the camera, then the camera can be integrated under the display panel, but information cannot be displayed on the grooved or punched region
Solution Approach 1:
The display panel is divided into a first display region with standard pixel arrangement and a second display region with different pixel arrangement. The second display region has higher light transmittance to accommodate the camera, while maintaining display functionality through specially arranged sub-pixels with different colors (e.g., red, green, blue) that can be selectively activated.
Solution Approach 2:
The pixel layer is segmented into different types of sub-pixels (first sub-pixels and second sub-pixels) with different arrangements and colors. This segmentation allows the display panel to simultaneously achieve camera integration in the second display region and full-screen display across both regions by controlling different sub-pixel groups independently.
2Reliability
If the second light-emitting structure and first light-emitting structure respectively correspond to different vapor deposition openings, then the vapor deposition processes may interfere with each other, but forming separate structures increases manufacturing complexity
Solution Approach 1:
Adjacent light-emitting structures of the same color (second light-emitting structure in the second display region and first light-emitting structure in the first display region) are merged into a single interconnected structure. This allows both regions to share a common vapor deposition opening, eliminating process interference and simplifying manufacturing while maintaining the ability to independently control different colored sub-pixels.
3Ease of manufacture
If there is a wide non-luminous region between the second sub-pixel and first sub-pixel adjacent to the boundary, then the vapor deposition process is simplified, but dark lines appear at the boundary when displaying
Solution Approach 1:
The width of the non-luminous region (rib) between adjacent sub-pixels at the boundary is precisely controlled to be within a specific range (e.g., 1-10 micrometers). By optimizing this parameter, the display quality is improved to eliminate dark lines while still allowing sufficient space for the vapor deposition process to form interconnected light-emitting structures without excessive complexity.
Data Source
AI summary
A display panel and a display device. The display panel includes a first display region, a second display region and a boundary between the first display region and the second display region, a light transmittance of the second display region is greater than that of the first display region, the display panel includes a substrate and a pixel layer, the pixel layer includes a plurality of first sub-pixels arranged in a first arrangement in the first display region and a plurality of second sub-pixels arranged in a second arrangement in the second display region, the second arrangement is different from the first arrangement, a second light-emitting structure of each second sub-pixel and a first light-emitting structure of each first sub-pixel respectively adjacent to the boundary and having a same color are interconnected to form an interconnected light-emitting structure.