Display Panel Spacer Sub-Pixel Arrangement
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Solution Overview
Problem
Liquid crystal display panels face issues with light leakage and poor picture quality due to brightness differences caused by external forces damaging the alignment film and spacers, leading to stripe defects and reduced aperture ratios.
Innovation Solution
The display panel is divided into sub-pixel units with first sub-pixel units adjacent to main spacers in a single-domain structure and second sub-pixel units not adjacent to spacers in a multi-domain structure, enhancing transmittance and brightness to compensate for aperture ratio decreases and prevent stripe defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If main spacers are arranged between substrates to support the display panel, then mechanical strength and spacing stability are improved, but light leakage and stripe defects occur due to alignment film damage and brightness differences
Solution Approach 1:
The patent applies different pixel structures (single-domain vs. double-domain) to different spatial locations relative to the main spacers. Specifically, pixel structures adjacent to main spacers use a single-domain configuration to maximize light transmittance and avoid stripe defects, while pixel structures away from spacers use double-domain configuration for broader viewing angles. This local differentiation resolves the contradiction by optimizing each region's performance according to its specific constraints.
2Illumination intensity
If double-domain pixel structure is used to achieve wider viewing angle and higher contrast, then display performance is improved, but light transmittance decreases compared to single-domain structure
Solution Approach 1:
The patent strategically assigns single-domain pixel structures to regions adjacent to main spacers where light transmittance is prioritized, and double-domain pixel structures to regions away from spacers where viewing angle and contrast are prioritized. This spatial differentiation allows the system to achieve both high contrast ratio and adequate light transmittance by optimizing each local region for its primary function.
3Illumination intensity
If aperture ratio is increased to improve brightness, then light transmittance is improved, but spacing stability and mechanical support are compromised
Solution Approach 1:
The patent segments the display panel into different pixel types (single-domain and double-domain) based on their proximity to main spacers. This segmentation allows the system to maintain adequate aperture ratios in single-domain regions adjacent to spacers for mechanical stability, while achieving high brightness in double-domain regions where spacing constraints are less critical. The overall system benefits from both configurations working in their optimal zones.
Data Source
AI summary
A display panel and a manufacture method thereof, a display device. The display panel is divided into a plurality of sub-pixel units, and includes: a first substrate and a second substrate arranged opposite to each other, a plurality of main spacers that are arranged between the first substrate and the second substrate to support the first substrate and the second substrate, the plurality of sub-pixel units include a plurality of first sub-pixel units and a plurality of second sub-pixel units, the plurality of first sub-pixel units are adjacent to any one of the plurality of main spacers and are arranged in a single-domain structure, and the plurality of second sub-pixel units are not adjacent to any one of the plurality of main spacers and are arranged in a multi-domain structure.