Display Substrate Zoning for Full-Screen Camera Integration
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Solution Overview
Problem
Traditional electronic devices with notched screens for accommodating front-facing cameras and other components cannot achieve full-screen displays as the notched area cannot be used for image display, limiting the screen-to-body ratio and user experience.
Innovation Solution
A display substrate with distinct areas of varying light transmittance, where a high transmittance area allows for the placement of photosensitive components and reduces structural complexity, and a shared signal line system simplifies wiring and enhances display consistency across areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a notched area is created on the display screen to accommodate front-facing camera and other components, then these components can be arranged and function normally, but the notched area cannot be used to display images and the screen-to-body ratio is reduced
Solution Approach 1:
The display screen is divided into different display areas with different light transmittance characteristics. The first display area has higher light transmittance to allow photosensitive components to function, while the second and third display areas have lower light transmittance for normal image display. This local differentiation allows the notched area to both transmit light to underlying components and maintain display functionality.
2Reliability
If the light transmittance of the first display area is increased to accommodate photosensitive components, then these components can operate normally, but the structural complexity of the first display area increases
Solution Approach 1:
The display screen is segmented into multiple functional zones: a first display area with high light transmittance for component accommodation, a second display area with normal display characteristics, and a third display area serving as a buffer zone. This segmentation allows each area to be optimized for its specific function while simplifying the overall structure compared to a uniformly complex design.
3Adaptability or versatility
If separate signal lines are used for each display area, then each area can be controlled independently, but the wiring complexity in the display areas increases
Solution Approach 1:
The patent merges the signal line systems by having signal lines pass through multiple display areas (first, second, and third) to reach pixel circuits in different regions. This consolidation reduces the total number of separate wiring paths compared to completely independent signal line systems for each display area, while still allowing independent control through selective activation of pixel circuits in different zones.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables full-screen display while ensuring normal operation of photosensitive components, reduces wiring complexity, and improves user experience by increasing light transmittance and minimizing diffraction effects.
Implementation Method 1
a light transmittance of the first display area is greater than a light transmittance of the second display area, and the light transmittance of the first display area is greater than a light transmittance of the third display area
Implementation Method 2
an intensity of a diffraction effect generated when external light passes through the first display area can be weakened
Data Source
AI summary
Display substrates, display panels, and display devices. A display substrate includes a display area including a first display area, a second display area, and a third display area disposed between the two display areas, sub-pixels disposed in the above three display areas, pixel circuits corresponding to the sub-pixels one to one and signal lines. A light transmittance of first display area is greater than that of second display area, and that of third display area. Pixel circuits corresponding to sub-pixels in first display area are arranged in third display area. Pixel circuits corresponding to sub-pixels arranged along a first direction in display area are connected to a same one of the signal lines. At least one of the signal lines simultaneously connected with pixel circuits corresponding to sub-pixels in first display area, sub-pixels in second display area, and sub-pixels in third display area.