Pixel Electrode Branch Width Variation for Texture Reduction
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Solution Overview
Problem
Traditional liquid crystal display panels face challenges with display quality due to texture formation at the display area, which affects image clarity and overall performance.
Innovation Solution
The display panel design includes pixel electrodes with micro slits of varying widths and pitches, along with color filters of different thicknesses, to minimize texture formation and enhance display quality. The electrodes have branches that form either open or closed structures at their boundaries, reducing the texture and improving image clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixel electrodes are formed with uniform branch structures, then manufacturing process is simple, but texture is formed at display area reducing display quality
Solution Approach 1:
The patent applies local quality by making the branch widths of pixel electrodes non-uniform across different regions of the display panel. Specifically, pixel electrodes adjacent to data lines have different branch widths compared to those in the center region, which compensates for the texture effect caused by data line interference while maintaining a relatively simple manufacturing process using standard photolithography techniques.
2Manufacturing precision
If pixel electrodes are designed with complex varying branch widths, then display quality is improved by reducing texture, but device complexity increases
Solution Approach 1:
The patent segments the display panel into different regions (first region adjacent to data lines, second region in the center) and applies different branch width designs to each segment. This segmentation approach allows the complex varying width structure to be implemented in a controlled manner, reducing overall device complexity while still achieving the texture reduction effect where most needed.
3Stability of the object's composition
If all pixel electrodes have the same branch width, then device consistency is maintained, but texture formation reduces image clarity
Solution Approach 1:
The patent introduces asymmetry in the pixel electrode design by making branch widths different in the first region compared to the second region. This asymmetric design specifically targets the texture problem caused by data line interference near the edges, while maintaining sufficient uniformity in the center region where such interference is minimal, thus improving image clarity without sacrificing overall device consistency.
Data Source
AI summary
A display panel includes a first pixel electrode electrically connected to a first switching electrode, and includes a plurality of first branches forming micro slits, a second pixel electrode electrically connected to a second switching electrode, and including a plurality of second branches forming micro slits, and a third pixel electrode electrically connected to a third switching electrode, and including a plurality of third branches forming micro slits. The first branches are spaced apart from each other by a first space, and have a first width. The second branches are spaced apart from each other by a second space, and have a second width. The third branches are spaced apart from each other by a third space, and have a third width. At least one of the first width, the second width and the third width is different from the other widths.