Transparent Display Panel Asymmetric Bottom Electrodes Diffraction
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Solution Overview
Problem
The integration of components like cameras and sensors in electronic devices results in notches on display screens, limiting the full-screen experience due to diffraction issues caused by opaque metal structures in the display panel, affecting camera performance and transparency.
Innovation Solution
A display panel design with sub-pixels in a transparent region, where adjacent sub-pixels have differently shaped bottom electrodes, preventing regular slits and enhancing transparency by optimizing electrode shapes and arrangements to reduce diffraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If regular slits are formed between opaque metal structures in sub-pixels, then the camera region can be used for display, but diffraction occurs affecting camera photographing effects
Solution Approach 1:
The patent applies asymmetry by configuring bottom electrodes of adjacent sub-pixels with different shape types (first shape type vs. second shape type). This asymmetric arrangement prevents the formation of regular periodic slits between adjacent electrodes, thereby eliminating diffraction effects while maintaining display functionality in the camera region.
Solution Approach 2:
The patent implements local quality by applying different electrode shape configurations to different sub-pixels based on their positions. Specifically, sub-pixels in different regions or with different orientations receive different bottom electrode shape types, optimizing both display performance and camera compatibility in specific local areas.
2Reliability
If opaque metal structures are used in sub-pixels, then electrical connection is achieved, but transparency of the display region is reduced
Solution Approach 1:
The patent changes the shape parameter of bottom electrodes from uniform to varied (different shape types for adjacent sub-pixels). This parameter change optimizes the balance between electrical connection reliability and light transmission by reducing the formation of regular patterns that cause diffraction, thereby improving both reliability and transparency simultaneously.
3Ease of manufacture
If uniform bottom electrode shapes are used in all sub-pixels, then manufacturing is simplified, but regular slits form causing diffraction
Solution Approach 1:
The patent introduces asymmetry in bottom electrode shapes (different shape types for adjacent sub-pixels) to break the periodicity that causes diffraction. While this increases design complexity, the manufacturing process remains relatively simple as it only requires configuring different shapes in the electrode pattern design stage without adding complex fabrication steps.
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
Improves the photographing effects of photosensitive components and increases area utilization rates, resulting in enhanced transparency and reduced diffraction in the transparent display region.
Implementation Method 1
diffraction will be caused when external light passes through the region where the camera is disposed in the display panel
Data Source
AI summary
A display panel and a display device. The display panel includes a transparent display region. A plurality of sub-pixels are disposed in the transparent display region and the plurality of sub-pixels are arranged in a line along at least one direction. In each line of the plurality of sub-pixels arranged along at least one direction, a bottom electrode of one sub-pixel of each two adjacent sub-pixels among at least a part of a plurality of two adjacent sub-pixels has a first shape type, and a bottom electrode of the other sub-pixel of each two adjacent sub-pixels has a second shape type; the first shape type includes a circle or an ellipse; and the second shape type is the same as a shape of a light-emitting region of the other sub-pixel of each two adjacent sub-pixels.