Display Panel Pixel-Gap Routing for Under-Screen Light Transmission
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Solution Overview
Problem
Existing display technologies face limitations in achieving a high display area proportion due to the need to reserve space for front cameras, leading to designs like 'notch screen' and 'water-drop screen', which hinder the development of under-screen devices.
Innovation Solution
A display panel design with a first display area containing a display light transmissive area and a display transition area, where pixel driving circuits are positioned in the transition area, and a pixel gap is created between adjacent circuits to allow signal lines to pass through without discontinuation, thereby improving light transmittance and eliminating position restrictions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If pixel driving circuits are placed in the display light transmissive area, then the display area proportion increases, but the light transmittance decreases due to the presence of circuit components
Solution Approach 1:
The display area is segmented into a display light transmissive area and a display transition area. The pixel driving circuits are placed in the display transition area rather than the display light transmissive area, separating the light-emitting function from the driving circuit function. This segmentation allows the display light transmissive area to maintain high light transmittance while the display transition area accommodates the pixel driving circuits.
2Reliability
If signal lines are discontinued in the first display area, then the pixel driving circuits can be isolated, but load differences occur between discontinued wirings
Solution Approach 1:
The signal lines extend continuously from the second display area through the display transition area to the first display area without discontinuation. The pixel gaps provide spaces for the signal lines to pass through while maintaining electrical continuity. This continuous signal line design eliminates load differences between discontinued wirings while still achieving proper circuit isolation through the pixel gap arrangement.
3Ease of manufacture
If the display area position is fixed, then the manufacturing process is simplified, but the adaptability for under-screen devices is limited
Solution Approach 1:
The invention introduces a display transition area as an intermediate zone between the display light transmissive area and the second display area. This dimensional arrangement allows signal lines to extend through the display transition area via pixel gaps, providing flexibility in positioning the first display area while maintaining manufacturing feasibility. The pixel gaps serve as pathways that accommodate signal line routing without requiring complex manufacturing processes.
Data Source
AI summary
A display panel and a display device are provided. First pixel driving circuits are arranged in a display transition area, and the influence of the first pixel driving circuit on a display light transmissive area is avoided, and the light transmittance of the display light transmissive area is improved. A first pixel gap is arranged between adjacent first pixel driving circuits in a first display area, ensuring that a first signal line passes through the first display area from the first pixel gap, without the need to perform discontinuation processing on the first signal line at the first display area, and the problem of load difference between two discontinued wirings due to the discontinuation of the first signal line is avoided, to eliminate the position restriction of the first display area, and providing innovation for the development of the technology of under-screen devices.