Display Panel Sub-Pixel Orthographic Shape Asymmetry
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Solution Overview
Problem
The diffraction problem caused by photosensitive elements shooting through secondary screen areas in all-screen displays leads to a decrease in image quality due to retained film structures and light-emitting devices.
Innovation Solution
A display panel with a light-transmitting first display area divided into a first and second sub-display area, where the orthographic projection shapes of sub-pixels on the array substrate are identical, allowing diffraction light spots from both areas to intersect, enabling image information replacement and mitigation of diffraction issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If photosensitive elements are placed under the secondary screen area to achieve all-screen display, then screen-to-body ratio is improved, but diffraction problem occurs due to retained film structures causing image quality degradation
Solution Approach 1:
The display area is divided into a first sub-display area and a second sub-display area, with photosensitive elements positioned under each. This segmentation allows light to pass through different sub-display areas at different times, enabling the photosensitive elements to capture images while minimizing diffraction effects from the film structures.
Solution Approach 2:
The first and second sub-display areas are activated alternately in a periodic manner. The first sub-display area displays content while the second captures images, and vice versa. This periodic switching allows the photosensitive elements to shoot through a light-transmitting area without the diffraction problems caused by simultaneous operation of both areas.
2Adaptability or versatility
If secondary screen area retains film structures for display function, then display capability is maintained, but diffraction light spots are generated reducing image quality
Solution Approach 1:
Different regions of the display panel have different functional qualities. The first sub-display area and second sub-display area are configured with different orientations of sub-pixel orthographic projection shapes. This local differentiation allows each area to optimize its function - one for display, one for shooting - while reducing mutual interference and diffraction effects.
Solution Approach 2:
The orthographic projection shapes of sub-pixels in the first sub-display area and second sub-display area are intentionally made asymmetric relative to each other. The first center line of the orthographic projection shape in one area is perpendicular to the first center line in the other area. This asymmetric configuration causes diffraction light spots to appear at different positions, enabling their separation and removal through image processing.
3Ease of manufacture
If orthographic projection shapes of sub-pixels are made identical in both sub-display areas, then manufacturing simplicity is maintained, but diffraction light spots cannot be separated for effective image synthesis
Solution Approach 1:
While maintaining identical geometric shapes for manufacturing simplicity, the orientation of the orthographic projection shapes is made asymmetric between the two sub-display areas. The first center line of the orthographic projection shape in the first sub-display area is perpendicular to the first center line in the second sub-display area. This asymmetric orientation causes diffraction light spots to appear at different positions in the captured images, enabling their separation and effective removal through image synthesis.
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 solution alleviates the diffraction problem of under-screen shoot and improves image quality by allowing for the comparison and synthesis of initial images from both sub-display areas, effectively reducing or eliminating diffraction light spots in the final image.
Implementation Method 1
a diffraction problem of under-screen shoot will be caused when the photosensitive elements are shooting through the secondary screen area
Data Source
AI summary
A display panel and display device. A first display area of the display panel is a light-transmitting display area, which includes a first sub-display area and second sub-display area. The display panel includes an array substrate and light-emitting functional layer. The light-emitting functional layer includes first sub-pixels and second sub-pixels. Orthographic projection shapes of the second sub-pixels on the array substrate are identical, at least one of the first sub-pixels is a target sub-pixel, an orthographic projection shape on the array substrate of the target sub-pixel is identical to that of a second sub-pixel, each of orthographic projection shapes of the target sub-pixel and second sub-pixel includes a first center line and second center line that are perpendicular to each other, and the first center line of the orthographic projection shape of the target sub-pixel intersects that of the orthographic projection shape of the second sub-pixel.