Scattering Layer for Irregular Display Border Zigzag Suppression
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Solution Overview
Problem
Irregularly-shaped display panels exhibit zigzag patterns due to mismatched pixel units and borders, leading to uneven display effects, particularly at irregularly-shaped borders where regular pixel structures fail to match, causing brightness inconsistencies and degrading the display quality.
Innovation Solution
A scattering layer with scattering particles is applied on one side of the array substrate, ensuring its orthogonal projection covers adjacent display pixels, scattering light to achieve uniform brightness and smooth edge patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If regular pixel structures are used in irregularly-shaped display panels, then manufacturing is simplified, but zigzag patterns and brightness inconsistencies appear at the borders
Solution Approach 1:
The patent applies different properties to different regions: regular pixel structures are used in the main display area for ease of manufacture, while a scattering layer with specific optical properties is applied only at the border regions to correct the zigzag pattern issue, thus achieving local optimization without changing the entire pixel structure
Solution Approach 2:
A scattering layer is introduced as an intermediary component between the regular pixel structures and the irregular border. This scattering layer mediates the light output to smooth out the zigzag patterns, allowing regular pixels to coexist with irregular borders without direct conflict
2Manufacturing precision
If pixel units are adjusted to match irregular borders, then display smoothness improves, but pixel structure regularity and manufacturing simplicity are compromised
Solution Approach 1:
The patent extracts the border correction function from the pixel structure itself and places it in a separate scattering layer. This allows the pixel units to remain regular and simple to manufacture, while the scattering layer independently handles the border smoothness requirement
3Manufacturing precision
If a scattering layer is added to suppress zigzag patterns, then border display uniformity improves, but device structure complexity increases
Solution Approach 1:
The scattering layer utilizes porous or particulate materials that can be integrated into existing display manufacturing processes. The scattering particles or porous structure provide the necessary light diffusion function without requiring complex multi-layer constructions, thus minimizing the increase in device complexity
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 solution effectively suppresses zigzag patterns, enhancing display smoothness and uniformity by scattering light emitted from the display region adjacent to irregularly-shaped borders, applicable to both LCD and OLED panels.
Implementation Method 1
A plurality of scattering particles is disposed in the scattering region, and an orthogonal projection of the scattering region on the array substrate covers at least a portion of the first plurality of display pixels adjacent to the irregularly-shaped border
Data Source
AI summary
A display panel includes an array substrate, including a display region containing a plurality of display pixels and a border region; and a scattering layer, located on one side of the array substrate and including a scattering region. The plurality of display pixels includes a plurality of pixel rows extending along a first direction and a plurality of pixel columns extending along a second direction. The first direction and the second direction intersect each other. The border region includes an irregularly-shaped border. The plurality of display pixels includes a first plurality of display pixels adjacent to the irregularly-shaped border. The first plurality of display pixels is located in different pixel rows and different pixel columns. A plurality of scattering particles is disposed in the scattering region, and an orthogonal projection of the scattering region on the array substrate covers at least a portion of the first plurality of display pixels.