Stereoscopic Display Pixel Contrasting Subpixel Arrangement
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Solution Overview
Problem
Conventional stereoscopic display devices using the parallax barrier method suffer from a stereoscopic image coloring phenomenon when viewed from positions deviated from the front or at an angle, where pixels behind the parallax barrier become visible, causing reddish or bluish tinting of the images.
Innovation Solution
A stereoscopic display device with a parallax barrier and a display panel where each pixel includes color forming subpixels and a contrasting subpixel positioned at both ends of the pixel, with the contrasting subpixel visible when the pixel overlaps the light shielding part, effectively suppressing the stereoscopic image coloring phenomenon by ensuring the contrasting subpixel is visible when the pixel overlaps the light shielding part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the parallax barrier method is used to display stereoscopic images without glasses, then stereoscopic images can be displayed, but pixels behind the parallax barrier become visible when viewed from deviated positions or angles, causing stereoscopic image coloring phenomenon
Solution Approach 1:
Each pixel is divided into multiple subpixels with different functions: color-forming subpixels (R, G, B) for color display and contrasting subpixels (W, Bk) for contrast enhancement. The contrasting subpixels are strategically positioned at both ends of the pixel in the horizontal direction, allowing them to be visible when the pixel overlaps the light shielding part, thereby suppressing the stereoscopic image coloring phenomenon while maintaining glasses-free operation
Solution Approach 2:
Different subpixels within the same pixel serve different local functions. The color-forming subpixels are responsible for color generation, while the contrasting subpixels positioned at the ends are specifically designed to be visible when overlapping light shielding parts, providing local contrast enhancement exactly where needed to prevent the coloring effect
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents the stereoscopic image coloring phenomenon by ensuring the contrasting subpixel is visible when the pixel overlaps the light shielding part, maintaining image integrity regardless of viewing position or angle.
Implementation Method 1
a parallax barrier in which light transmission parts that transmit light and light shielding parts that block light are formed alternately
Implementation Method 2
in each pixel that overlaps the light shielding part when the display panel is viewed from front, the contrasting subpixel is positioned at both ends of the light shielding part
Data Source
AI summary
A stereoscopic display device includes: a parallax barrier in which light transmission parts that transmit light and light shielding parts that block light are formed alternately, and a display panel that displays a stereoscopic image. A plurality of pixels for displaying the stereoscopic image are formed on the display panel. Each pixel includes a plurality of color forming subpixels that contribute to the color formation of the stereoscopic image, and a contrasting subpixel that contributes to the contrast of the stereoscopic image. In each pixel, the contrasting subpixel is positioned at both ends of the pixel in a direction in which the light transmission parts and the light shielding parts are arranged alternately. In each pixel that overlaps the light shielding part when the display panel is viewed from front, the contrasting subpixel is positioned at both ends of the light shielding part.