Color Resist Aperture Geometry for Display Diffraction Control
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Solution Overview
Problem
The increasing resolution of display products, achieved by reducing pixel unit sizes, leads to light diffraction and color separation issues, degrading display quality.
Innovation Solution
A filter unit with a color resist aperture where edges of the opening have equal distances to the geometric center, and a color film structure with filter units of varying aperture sizes for different colors, reduce diffraction and enhance display quality by minimizing color separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pixel unit sizes are reduced to increase resolution, then display resolution is improved, but light diffraction and color separation occur degrading display quality
Solution Approach 1:
The patent applies curvature by rounding the corners of the color resist aperture from a rectangular shape to a shape with curved edges. This curvature modification reduces the sharp corners that cause light diffraction, thereby minimizing color separation while maintaining the small pixel size needed for high resolution displays.
Solution Approach 2:
The patent modifies only the local geometry of the color resist aperture edges rather than changing the overall pixel structure. By applying curvature specifically at the aperture corners and edges, the solution addresses the diffraction problem locally without requiring a complete redesign of the pixel unit, thus maintaining high resolution while reducing harmful optical effects.
2Manufacturing precision
If aperture sizes are varied for different colors, then color accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The patent implements parameter changes by varying the aperture sizes for different color resists (red, green, blue) according to specific ratios. This allows optimization of color accuracy by matching aperture sizes to the characteristics of each color channel, while the variations are controlled within a systematic framework that manages manufacturing 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 described filter unit and color film structure effectively reduce light diffraction and color separation, improving display quality by ensuring consistent edge distances and tailored aperture sizes for each color, thereby enhancing pixel accuracy and image clarity.
Implementation Method 1
light diffraction and color separation issues
Data Source
AI summary
Disclosed are a filter unit, a color film structure, a display panel, and a display device. The filter unit includes a color resist aperture. The color resist aperture is configured to accommodate a color resist. At least part of edges of an opening of the color resist aperture have equal distances to a geometric center of the opening. The structure of the color resist aperture of the filter unit is improved, such that at least part of edges of an opening of the color resist aperture have equal distances to the geometric center of the opening.