Asymmetric Pixel Display Device for Multi-Viewpoint Color Accuracy
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Solution Overview
Problem
Existing display devices experience unintended coloring due to differences in light travel from color pixels to various viewpoints, which current technologies have not adequately addressed.
Innovation Solution
A display device configuration featuring a matrix of pixels with a row-column arrangement, where each pixel is wider in the direction orthogonal to the viewpoint arrangement, and a light control panel that controls light to vary between viewpoints, using light-blocking members and slits to ensure accurate color delivery to each viewpoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If color pixels are arranged in the viewpoint arrangement direction with longer width in that direction, then the display device can output different images to different viewpoints, but unintended coloring occurs due to differences in light travel from color pixels to viewpoints
Solution Approach 1:
The patent applies local quality by making each pixel have different widths in different directions (wider in the column direction orthogonal to viewpoint arrangement than in the row direction). This asymmetric pixel shape creates different light emission characteristics for different colors, allowing each color pixel to direct light more accurately to its intended viewpoint while reducing crosstalk and unintended coloring.
Solution Approach 2:
The patent employs asymmetry by designing pixels with non-uniform dimensions where the width in the column direction (orthogonal to viewpoint arrangement) is greater than the width in the row direction (along viewpoint arrangement). This asymmetric configuration optimizes light emission patterns to reduce color mixing between adjacent viewpoints while maintaining multi-viewpoint functionality.
2Ease of manufacture
If pixels are arranged in a standard square configuration, then manufacturing is simpler, but light from different color pixels reaches viewpoints with unintended coloring
Solution Approach 1:
The patent modifies the local quality of each pixel by giving it an asymmetric rectangular shape rather than a square shape. The pixel width in the column direction is made larger than in the row direction, creating localized optical characteristics that control light emission angles and reduce color crosstalk to different viewpoints.
Solution Approach 2:
The patent changes the geometric parameters of pixels from equal dimensions (square) to unequal dimensions (rectangular with specific aspect ratio). By adjusting the width ratios in different directions, the patent optimizes light emission characteristics to eliminate unintended coloring while maintaining manufacturability through standard photolithography processes.
Data Source
AI summary
According to an aspect, a display device includes: a display panel including a plurality of pixels disposed in a matrix having a row-column configuration; and a light control panel configured to control light traveling from the display panel to a plurality of viewpoints such that the light varies from viewpoint to viewpoint. The pixels include a first pixel configured to output light in a first color and a second pixel configured to output light in a second color. The first and second pixels are arranged in a column direction orthogonal to an arrangement direction of the viewpoints. A width of each pixel in a row direction along the arrangement direction of the viewpoints is greater than a width of the pixel in the column direction.