Stereoscopic Display Using 3D Pixel Unit for Wide Viewing Angles
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Solution Overview
Problem
Conventional stereoscopic image display devices have limited viewing angles, are restricted to discrete viewpoints, and are unable to display moving images effectively.
Innovation Solution
A stereoscopic image display device featuring a three-dimensional pixel unit made of optically changeable materials, connected by transparent wiring patterns, and controlled by an arithmetic/control circuit to function as a transmissive hologram, enabling wider viewing angles and the display of moving images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stereoscopic image display devices use fixed hologram structures, then manufacturing is simplified, but viewing angle is limited and discrete viewpoints are restricted
Solution Approach 1:
The patent applies dynamics by making the hologram structure changeable through pixel-level control. Each pixel cell can independently adjust its optical characteristics (refractive index, light transmittance) in response to control signals, transforming the static hologram into a dynamic one that can adapt to different viewing angles and display moving images.
Solution Approach 2:
The patent segments the hologram into multiple independently controllable pixel cells arranged in a matrix. Each pixel cell can be controlled individually via transparent wiring patterns, allowing different regions to display different optical characteristics simultaneously, thereby enabling wide viewing angles and moving image display.
2Adaptability or versatility
If conventional devices use static hologram structures, then device complexity is reduced, but the ability to display moving images is lost
Solution Approach 1:
The patent enables moving image display by making the hologram dynamic through pixel-level control. Each pixel cell's optical characteristics can be changed over time in response to control signals, allowing the display of moving images while maintaining a relatively simple overall device structure.
3Adaptability or versatility
If pixel cells are arranged in a three-dimensional manner with transparent wiring, then viewing angle is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by making each pixel cell have uniform and specific optical characteristics (refractive index, light transmittance) that can be independently controlled. This local uniformity and controllability simplify the manufacturing process while enabling wide viewing angles, as each pixel cell can be optimized independently rather than requiring perfect precision across the entire three-dimensional structure.
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 provides a stereoscopic image display device with enhanced viewing angles, allowing for a view from any direction and the capability to display moving images, overcoming the limitations of conventional technologies.
Implementation Method 1
Each of the pixel cells is formed of an optical material having electrically changeable optical characteristics
Data Source
AI summary
According to one embodiment, a stereoscopic image display device includes a three-dimensional pixel unit, a backlight, and an arithmetic/control circuit. The three-dimensional pixel unit includes a plurality of pixel cells that are formed of an optical material having electrically changeable optical characteristics, are arranged in a mutually separated manner and in a three-dimensional manner, and are electrically connected with transparent wiring patterns. The backlight is configured to emit illumination light to the three-dimensional pixel unit. The arithmetic/control circuit is configured to control the plurality of pixel cells individually via the wiring patterns on the basis of input three-dimensional image data to cause the three-dimensional pixel unit to function as a transmissive hologram.