Display Substrate with Localized Pixel Density for Camera Integration
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Solution Overview
Problem
The arrangement of functional elements such as cameras and sensors on display apparatuses with all-screen panels hinders the improvement of screen-to-panel ratio due to the need for higher pixel density in display areas, which conflicts with the requirement for a high screen-to-panel ratio and ultra-narrow bezels.
Innovation Solution
A display substrate with a first display sub-area of high pixel density and a second display sub-area of low pixel density, where the camera and other elements are placed in the low-density area, allowing for improved transmittivity and a higher screen-to-panel ratio by reducing pixel density locally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel density is increased in display areas to improve resolution, then display quality is improved, but screen-to-panel ratio deteriorates due to inability to place cameras and sensors
Solution Approach 1:
The display panel is divided into different regions with different pixel densities: a first region with high pixel density for display purposes, and a second region with low pixel density for placing cameras and sensors. This local differentiation allows each region to optimize its function while resolving the contradiction between resolution and screen-to-panel ratio.
Solution Approach 2:
The display area is segmented into multiple regions with different functional requirements. The first region is dedicated to high-quality display with dense pixel arrangement, while the second region is designated for functional elements with sparse pixel arrangement, enabling both high resolution and improved screen-to-panel ratio.
2Adaptability or versatility
If functional elements are arranged on the front face to enable photo, communication and fingerprint recognition functions, then functionality is improved, but screen-to-panel ratio deteriorates
Solution Approach 1:
The camera, sensor, and fingerprint recognition area are integrated into the display panel structure itself, forming a unified component rather than separate elements. This merging allows these functional elements to share the same physical space within the low pixel density region, maximizing functionality while minimizing impact on screen-to-panel ratio.
3Area of stationary object
If pixel density is reduced in certain areas to improve screen-to-panel ratio, then transmittivity is improved, but display resolution deteriorates
Solution Approach 1:
Different regions of the display panel are assigned different pixel densities according to their specific functional requirements. The first region maintains high pixel density for optimal display resolution, while the second region uses low pixel density to improve transmittivity and accommodate functional elements, thus resolving the contradiction locally rather than globally.
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 the screen-to-panel ratio and minimizes the interference of camera and sensor placement on the display effect, achieving a balance between high resolution and improved transmittivity.
Implementation Method 1
subsequent deposition of inorganic encapsulation layers via a sputtering apparatus
Data Source
Figure 1a~1b
Figure 1c~1d
Figure 1e~1f
AI summary
A display substrate, a display method therefor, a display apparatus, and a high-precision metal mask plate. A display region of the display substrate comprises a first display subregion (A1) and a second display subregion (A2). A plurality of uniformly distributed subpixels are arranged in the second display subregion (A2), and the first display subregion (A1) has a pixel distribution density greater than that of the second display subregion (A2). Therefore, a camera, a sensor, an earpiece and other elements can be arranged in the second display subregion (A2).