Variable-Density Display Substrate for Integrated Front Cameras
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Solution Overview
Problem
The arrangement of functional elements such as front cameras, earphones, and fingerprint recognition areas on all-screen display panels hinders the improvement of the screen-to-panel ratio.
Innovation Solution
A display substrate design with a first display sub-area of high pixel density and a second sub-area of lower pixel density, allowing for the integration of these elements while maintaining high screen-to-panel ratio by adjusting pixel distribution and sub-pixel arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If functional elements (front camera, earphone, fingerprint recognition area) are arranged on the front face of the display panel, then the display panel can perform multiple functions, but the screen-to-panel ratio deteriorates
Solution Approach 1:
The display panel is divided into a first display area with high pixel density and a second display area with low pixel density. The functional elements are arranged in the second display area, which has reduced pixel density to accommodate cameras, sensors, and other components while maintaining overall display functionality. This local differentiation allows different regions to serve different purposes - high-quality display in the first area and functional integration in the second area.
2Area of stationary object
If pixel density is reduced in certain areas to accommodate functional elements, then screen-to-panel ratio improves, but display quality deteriorates
Solution Approach 1:
Different pixel densities are applied to different regions of the display panel. The first display area maintains high pixel density for superior display quality, while the second display area uses lower pixel density to accommodate functional elements. This localized approach ensures that display quality is preserved where needed while enabling functional integration in other areas.
Solution Approach 2:
The display panel is segmented into distinct display areas with different characteristics. The first display area and second display area are clearly defined and separated, allowing independent optimization of each region - one for high-quality display and the other for functional element integration with reduced pixel density requirements.
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
Disclosed are a display substrate, a drive method therefor, a display apparatus, and a high-precision metal mask template, a display region of the display substrate comprising a first display sub-region having high pixel distribution density and a second display sub-region having low pixel distribution density. As the pixel distribution density in the second display sub-region is low, components such as a camera can be arranged in the second display sub-region, thus increasing the screen occupation ratio of the display substrate by means of reducing the local pixel distribution density in order to increase the light transmittance of the screen.