Display Panel Asymmetric Pixel Electrode Gaps Reduce Diffraction
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Solution Overview
Problem
Existing display panels with light transmitting areas for under-screen cameras suffer from strong diffraction interference, leading to poor image quality.
Innovation Solution
A display panel design featuring a base substrate with distinct display sub-areas, where first and second light emitting elements with specific pixel electrode configurations and gap patterns reduce diffraction interference, improving image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a light transmitting display area is set on the display panel to accommodate an under-screen camera, then the screen-to-body ratio is improved and display area is preserved, but strong diffraction interference occurs in the light transmitting area resulting in poor camera image quality
Solution Approach 1:
The patent applies asymmetry by designing the pixel electrode gaps with different widths in different regions. Specifically, the gaps in the light transmitting display area have different width configurations compared to non-light transmitting areas, creating an asymmetric gap width distribution that disrupts the periodic diffraction pattern and reduces diffraction interference while maintaining display functionality
Solution Approach 2:
The patent implements local quality by applying different gap width configurations to different regions of the display panel. The light transmitting area has specifically optimized gap widths that differ from other areas, allowing each region to have properties tailored to its specific function - the light transmitting area minimizes diffraction while other areas maintain standard display characteristics
2Adaptability or versatility
If the display area is reduced to accommodate camera components in peripheral areas, then camera functionality is achieved, but the screen-to-body ratio decreases and display area is lost
Solution Approach 1:
The patent merges the camera function with the display area by integrating an under-screen camera within the display region. The light transmitting display area serves dual purposes: it functions as a normal display region and simultaneously allows light transmission for the camera sensor beneath, combining two functions into one spatial location and eliminating the need for separate camera openings
Solution Approach 2:
The light transmitting display area exhibits multi-functionality by serving both as a display region and as a light transmission path for the under-screen camera. This universal area performs multiple functions simultaneously - displaying visual information while enabling camera operation, thereby maximizing the utility of the display panel area
3Ease of manufacture
If regular gap patterns are used in pixel electrodes, then manufacturing is simplified, but strong diffraction interference is generated reducing image quality
Solution Approach 1:
The patent breaks the symmetry of regular gap patterns by implementing different gap widths in different regions. The asymmetric gap width design disrupts the periodic structure that causes strong diffraction, while still maintaining a systematic and manufacturable pattern through controlled variations in gap dimensions across different display regions
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
The display panel effectively minimizes diffraction interference in the light transmitting area, enhancing the image quality of the camera and maintaining good light transmittance for display purposes.
Implementation Method 1
there is strong diffraction interference in the light transmitting display area
Data Source
AI summary
The present disclosure relates to a display panel and a display device. The display panel includes a base substrate with a display area and a non-display area surrounding the display area, the display area including a first display sub-area and a second display sub-area; a plurality of first light emitting elements formed on the base substrate and located in the first display sub-area; and a plurality of first pixel circuits formed on the base substrate and located in at least one of the second display sub-area and the non-display area, where the first pixel circuits are electrically connected to the first pixel electrodes of the first light emitting elements through a conductive wire.