Array Substrate Pixel Density and Electrode Shape for LCD Brightness Uniformity
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Solution Overview
Problem
Conventional LCD devices experience poorer brightness uniformity at the rim of lenses due to varying line widths of pixel electrodes, affecting display quality.
Innovation Solution
An array substrate with pixel structures distributed based on density near the junction of two pixel structure areas, featuring pixel electrodes of varying line widths and deformed shapes such as bulges, dents, and openings, to enhance brightness uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple lenses are used to form pixel structure areas, then display coverage is improved, but brightness uniformity deteriorates at the rim of lenses
Solution Approach 1:
The patent applies local quality by differentiating pixel electrode line widths based on their location within the display panel. Pixels at the rim of lenses are assigned different line widths compared to pixels in the center regions, allowing local optimization of brightness uniformity while maintaining overall display coverage across multiple lens-formed pixel structure areas.
2Illumination intensity
If pixel electrodes have varying line widths to compensate for rim brightness, then brightness uniformity improves, but manufacturing complexity increases
Solution Approach 1:
The patent implements local quality by creating distinct pixel electrode line width specifications for different regions (rim vs. center) of the display panel. This regional differentiation allows brightness uniformity compensation while maintaining a relatively simple manufacturing process by using standardized fabrication techniques with region-specific design parameters.
Data Source
AI summary
The present invention proposes an array substrate includes two or more pixel structure areas formed by different lenses, with each pixel structure area comprising a plurality of sub-areas, and each sub-area comprising a plurality of pixel structures. Since pixel structures in the sub-areas next to a junction of two pixel structure areas are distributed based on density, a brightness of sub-areas next to the junction can be displayed in uniformity.