Display Substrate with Varying Light Transmittance Regions
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Solution Overview
Problem
Traditional electronic devices with integrated front cameras and sensors suffer from reduced image quality due to complex transparent display regions that generate diffraction fringes, affecting the operation of photosensitive components and preventing full-screen displays.
Innovation Solution
A display substrate with distinct regions of varying light transmittance and pixel density, where the first display region has higher transmittance and lower pixel density, allowing the pixel circuit to be placed in the third region, reducing structural complexity and diffraction effects, and enabling full-screen display while maintaining proper photosensitive component operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transparent display region with high light transmittance is provided to allow photosensitive components to operate, then the photosensitive component operation is ensured, but the structural complexity increases and diffraction fringes are generated affecting image quality
Solution Approach 1:
The display screen is segmented into multiple distinct regions: a first display region with high light transmittance for photosensitive component operation, a second display region with normal display characteristics, and a third display region for pixel circuit placement. This segmentation allows each region to be optimized for its specific function, resolving the contradiction between ensuring photosensitive component operation and reducing structural complexity.
Solution Approach 2:
Different regions of the display screen are assigned different local qualities: the first display region has high light transmittance and lower pixel density to facilitate photosensitive component operation, while the second display region has normal display characteristics. This local differentiation allows the system to meet the requirement of high light transmittance in specific areas without compromising the overall display quality or increasing unnecessary structural complexity throughout the entire screen.
2Ease of operation
If pixel circuits are placed in the first display region to drive sub-pixels, then the display function is achieved, but diffraction effects increase and imaging quality deteriorates
Solution Approach 1:
The pixel circuits are extracted from the first display region and placed in the third display region. This extraction removes the source of diffraction effects from the high light transmittance area, allowing the first display region to maintain its optical properties without the harmful diffraction effects that would be generated by pixel circuits located within it.
Solution Approach 2:
The layout is reorganized by utilizing the third display region, which is adjacent to both the first and second display regions. This spatial rearrangement in a different dimensional configuration allows pixel circuits to be positioned outside the high light transmittance area while still maintaining electrical connectivity and display functionality, thereby eliminating diffraction effects without sacrificing display operation.
3Manufacturing precision
If the density of sub-pixels is increased to improve display resolution, then the display quality is improved, but the space available for pixel circuits is reduced
Solution Approach 1:
The display screen is divided into multiple functional regions, with the third display region specifically allocated for pixel circuit placement. This segmentation decouples the space requirements for high-density sub-pixels from the space requirements for pixel circuits, allowing the second display region to achieve high display resolution without compromising the area available for pixel circuits in the third region.
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
This configuration enhances imaging quality by reducing diffraction effects and allowing for full-screen displays while ensuring the proper operation of photosensitive components, such as cameras, by optimizing light transmittance and pixel circuit arrangement.
Implementation Method 1
The first segment is made of a transparent conductive material
Implementation Method 2
The polarizer can eliminate the reflected light by the surface of the display panel
Data Source
AI summary
A display substrate includes a substrate, and the display substrate includes a first display region with a greatest light transmittance, a second display region, and a third display region on the substrate, the third display region is contiguous to the first and second display regions. A plurality of first sub-pixels are disposed in the first display region, a plurality of second sub-pixels are disposed in the second display region, a plurality of third sub-pixels are disposed in the third display region, and a density of the second sub-pixels is the greatest. A pixel circuit for the first sub-pixels is disposed in the third display region, a first electrode of the first sub-pixel is electrically connected to a corresponding pixel circuit via a wiring, the wiring includes a first segment of transparent conductive material disposed in the first display region and a second segment disposed in the third display region.