Liquid Crystal Display Light-Point Pitch for Viewpoint Displacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices experience display quality degradation due to viewpoint positional displacement, leading to insufficient brightness at displaced viewpoints.
Innovation Solution
A display device with a liquid crystal display panel and light source configuration where the pitch between light emission points is 1:4n or 1:6n times the pitch between pixels, and the light emission points are wider than the pixels, allowing for improved image output to multiple viewpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional image separation barrier is provided in correspondence with the position of a viewpoint expected in advance, then display quality is good at the expected viewpoint, but display quality degrades when viewpoint positional displacement occurs
Solution Approach 1:
The patent segments the light emission area into multiple light emission points arranged in a grid pattern, where each light emission point corresponds to a specific pixel group. This segmentation allows the system to handle viewpoint displacement by activating appropriate light emission points for different viewing positions, thereby maintaining display quality across a range of viewpoints rather than only at the expected viewpoint position.
Solution Approach 2:
The patent introduces a spatial dimension by arranging light emission points in a grid pattern with specific pitch ratios (1:4n or 1:6n) relative to pixel pitch. This dimensional arrangement creates multiple light emission regions that overlap with different pixel groups, enabling the system to accommodate viewpoint displacement in the horizontal direction while maintaining proper image separation and quality.
2Adaptability or versatility
If the pitch between light emission points is reduced to improve coverage, then viewing angle coverage improves, but image separation performance degrades
Solution Approach 1:
The patent specifies precise parameter relationships by setting the pitch between light emission points to be 1:4n or 1:6n times the pitch between pixels, where n is a natural number. This parameter optimization ensures that light emission points are positioned to illuminate appropriate pixel groups for different viewpoints while maintaining sufficient separation to prevent crosstalk, thus achieving both wide viewing angle coverage and accurate image separation.
Solution Approach 2:
The patent applies different functional characteristics to different regions: light emission points are strategically positioned to provide localized illumination to specific pixel groups. Each light emission point and its corresponding pixel group form a functional unit that can be independently controlled, allowing the system to optimize both coverage and separation locally across the display area.
Data Source
AI summary
According to an aspect, a display device includes: a liquid crystal display panel provided with a plurality of pixels; and a light source provided with a plurality of light emission points and configured to emit light to the pixels of the liquid crystal display panel. A ratio of a pitch between the pixels arranged in a first direction to a pitch between the light emission points arranged in the first direction is 1:4n or 1:6n, wherein n is a natural number. A width of each light emission point in the first direction is larger than a width of each pixel in the first direction.