Display Panel Pixel Layout for Under-Screen Diffraction Reduction
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Solution Overview
Problem
Existing display panels face challenges in maintaining optical performance due to diffraction phenomena when external light passes through the display area reserved for optical components, such as camera modules and infrared sensing devices.
Innovation Solution
The display panel incorporates a specific arrangement of light-emitting elements, including first, second, and third color light-emitting elements, arranged in a staggered manner to reduce diffraction. The anode of the third color light-emitting element features an arc-shaped edge in the first display area, optimizing light transmittance and minimizing diffraction impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If optical components are accommodated in the reserved area of the display panel, then the functionality of the display device is enhanced, but diffraction phenomenon occurs when external light passes through the display area, degrading optical performance
Solution Approach 1:
The patent applies asymmetry by arranging light-emitting elements in non-uniform patterns within the reserved area. Specifically, the display area is divided into a first display area and a second display area with different light-emitting element configurations. The first display area contains a first light-emitting element with a first anode, while the second display area contains a second light-emitting element with a second anode having a different arrangement pattern. This asymmetric arrangement disrupts the periodicity that causes diffraction, thereby reducing the diffraction phenomenon while maintaining optical component functionality
Solution Approach 2:
The patent segments the display area into multiple regions with different light-emitting element arrangements. The display area is divided into a first display area and a second display area, where each area has distinct light-emitting element configurations. This segmentation allows different regions to serve different functions: one region optimizes for display performance while the other optimizes for reducing diffraction effects, enabling both optical component functionality and reduced diffraction to coexist
2Stability of the object's composition
If the display panel uses regular wirings and periodically arranged unit pixels to increase screen-to-body ratio, then the structural integrity is maintained, but diffraction phenomenon is caused when light passes through
Solution Approach 1:
The patent applies local quality by creating different wiring and light-emitting element arrangements in different regions of the display panel. The first display area has a first wiring arrangement corresponding to a first light-emitting element arrangement, while the second display area has a second wiring arrangement corresponding to a second light-emitting element arrangement. This local differentiation allows the panel to maintain overall structural integrity while creating specific zones with non-periodic patterns that reduce diffraction effects
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 effectively reduces the degree of diffraction, thereby enhancing the optical performance of optical elements in the reserved area, while maintaining a high screen-to-body ratio.
Implementation Method 1
When light passes through the display panel, it will form a diffraction phenomenon, thus affecting the optical performance of the optical elements
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a display area, including a first display area and repeating units that including a first light-emitting element column, a second light-emitting element column, a third light-emitting element column and a fourth light-emitting element column. The second light-emitting element column and the fourth light-emitting element column each includes a third color light-emitting element, and third color light-emitting elements in the second light-emitting column and the fourth light-emitting element column are arranged in a staggered manner in the first direction. In a direction perpendicular to a plane of the display panel, a light-emitting element includes an anode, a light-emitting material layer and a cathode stacked in sequence; and in the first display area, in the direction perpendicular to the plane, in the third color light-emitting element, a shape of the anode includes an arc-shaped edge.