Arc-shaped protrusions and slits for liquid crystal viewing angle
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Solution Overview
Problem
Liquid crystal panels with narrow viewing angles suffer from color-fading and whitening phenomena due to structural limitations in liquid crystal molecule alignments, leading to poor display quality when viewed from different directions.
Innovation Solution
The liquid crystal panel design incorporates arc-shaped protrusions and slits on the substrates, allowing for continuous and radial alignment of liquid crystal molecules under an electric field, enhancing viewing angle performance and preventing alignment defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If four-domain vertical alignment technique with straight protrusions and slits is used, then viewing angle is widened, but color-fading and whitening phenomena occur due to limited alignment directions
Solution Approach 1:
The patent applies curvature by replacing straight protrusions and slits with arc-shaped protrusions and slits. The arc-shaped structures enable liquid crystal molecules to align in continuous radial directions rather than limited straight directions, eliminating color-fading and whitening phenomena while maintaining wide viewing angle performance.
2Manufacturing precision
If multiple protrusions and slits are added to divide pixel elements into four domains, then alignment control is improved, but device complexity increases
Solution Approach 1:
The arc-shaped protrusions and slits provide continuous radial alignment control without requiring multiple discrete straight structures. This curved geometry achieves precise alignment control while simplifying the overall structure compared to traditional four-domain designs with multiple straight protrusions and slits.
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 design significantly improves image visibility and quality at wide viewing angles by ensuring consistent image display and preventing color-fading and whitening issues, maintaining a bright state with stable and uniform liquid crystal alignments.
Implementation Method 1
The liquid crystal panel displays color using an electric field to control twist of the liquid crystal molecules
Implementation Method 2
Liquid crystal molecules in each domain align along four specific directions to obtain a wider viewing angle
Data Source
AI summary
A liquid crystal panel includes a first substrate, a second substrate disposed opposite to the first substrate, and a liquid crystal layer sealed between the first substrate and the second substrate including a plurality of liquid crystal molecules. The first substrate includes a plurality of first region-dividing structures; the second substrate includes a plurality of second region-dividing structures. The first substrate, the second substrate and the liquid crystal layer form a plurality of pixel elements, each of the pixel elements is divided into a plurality of regions by the first region-dividing structures and the second region-dividing structures, and the liquid crystal molecules have gradually and continuously changed alignments in at least one of the regions.