Display Sub-Pixel Column Widths for Viewing Angle
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Solution Overview
Problem
Display apparatuses with optical separation units suffer from visibility deterioration due to movement of the observation point, causing moiré effects as the position of the observer deviates from the ideal observation point, leading to sub-pixel light shielding parts being visible and affecting image quality.
Innovation Solution
A display apparatus with a configuration where the distance between adjacent sub-pixel columns displaying the same primary color is adjusted, with the first primary color having the highest luminosity having shorter boundaries and the second primary color having longer boundaries, and these colors are alternately lined up, reducing visibility issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical separation unit is arranged on the display unit, then stereoscopic viewing is achieved, but visibility deteriorates when the observation point moves from the ideal position
Solution Approach 1:
The patent applies local quality by making the sub-pixel columns have different widths based on their color. Specifically, sub-pixel columns displaying the first primary color have a different width compared to sub-pixel columns displaying other primary colors. This local differentiation in sub-pixel column widths compensates for the movement of the observation point, maintaining consistent light exposure and reducing visibility deterioration while preserving the stereoscopic viewing capability provided by the optical separation unit.
2Adaptability or versatility
If the observation point moves away from the ideal position, then viewing flexibility increases, but moiré effects occur and image quality deteriorates
Solution Approach 1:
The patent applies parameter changes by varying the width parameter of sub-pixel columns according to their color. Sub-pixel columns displaying the first primary color have a different width compared to those displaying other primary colors. This parameter variation in sub-pixel column widths compensates for observation point movement, reducing moiré effects and visibility deterioration while allowing greater viewing position flexibility.
3Ease of manufacture
If uniform sub-pixel column widths are used, then manufacturing is simplified, but brightness variations occur when observation point moves
Solution Approach 1:
The patent applies local quality by differentiating sub-pixel column widths based on color rather than using uniform widths. Sub-pixel columns displaying the first primary color have a different width compared to sub-pixel columns displaying other primary colors. This local differentiation compensates for observation point movement, maintaining consistent brightness across different viewing positions while remaining manufacturable through standard display fabrication processes.
Data Source
AI summary
A display apparatus including a display unit in which pixels configured from a group of a plurality of types of sub-pixels displaying different primary colors are arranged in a two-dimensional matrix shape in the row direction and the column direction; and an optical separation unit separating an image displayed on the display unit into images for a plurality of observation points, in which, when one of the primary colors displayed by the sub-pixels is expressed as a first primary color, the distance between the boundaries of respectively adjacent sub-pixel columns formed of sub-pixels displaying the first primary color is shorter than the distance between boundaries of respectively adjacent sub-pixel columns formed of the same type of sub-pixels displaying different primary colors to the first primary color.