Light Guide Plate Viewing Zone Separation Units
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Solution Overview
Problem
Current three-dimensional (3D) image display technologies using light guide plates are costly to manufacture and lack versatility in optical design, limiting their ability to effectively separate viewing zones for a seamless 3D experience.
Innovation Solution
A light guide plate with a transparent body and integrated viewing zone separation units, featuring inclined reflective surfaces, allows for total internal reflection and emission of light into distinct viewing zones, reducing manufacturing complexity and costs while providing adjustable optical designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional light guide plates are used for 3D display, then viewing zone separation can be achieved, but manufacturing costs increase and manufacturing complexity increases
Solution Approach 1:
The patent combines the light guide function and viewing zone separation function into a single integrated light guide plate. The plate includes a light guide portion for guiding light and a viewing zone separation portion with inclined surfaces that separate viewing zones, eliminating the need for separate components and reducing manufacturing complexity and costs.
Solution Approach 2:
The light guide plate serves multiple functions simultaneously: it guides light from the display panel, separates viewing zones through its inclined surfaces, and provides the structural support for the 3D display system. This multi-functionality reduces the number of components needed and simplifies manufacturing.
2Reliability
If conventional light guide plates are used for 3D display, then viewing zone separation can be achieved, but device complexity increases
Solution Approach 1:
The patent merges the light guide portion and viewing zone separation portion into a single integrated structure. The light guide plate includes both the light guiding function and the viewing zone separation function with inclined surfaces, reducing the number of separate components and simplifying the overall device structure.
3Reliability
If conventional light guide plates are used for 3D display, then viewing zone separation can be achieved, but optical design versatility is limited
Solution Approach 1:
The patent applies different optical properties to different portions of the light guide plate. The light guide portion has properties optimized for light guiding, while the viewing zone separation portion has inclined surfaces with specific angles optimized for separating viewing zones. This local differentiation allows for optimized performance in each function while maintaining overall versatility.
Solution Approach 2:
The patent allows for adjustable inclination angles of the viewing zone separation surfaces, enabling dynamic optimization of the optical design for different 3D display configurations and viewing requirements.
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 enables efficient separation of light into different viewing zones, enhancing the 3D display experience by simplifying manufacturing and reducing costs, while allowing for various optical configurations to optimize image quality.
Implementation Method 1
a light guide plate for displaying a three-dimensional (3D) image includes a transparent body formed in a flat panel shape... for guiding light with total internal reflection in the transparent body
Implementation Method 2
each of the plurality of viewing zone separation units comprises a first reflective surface inclined with respect to the first incident surface, and a second reflective surface extending inclined with respect to the second incident surface, such that first light incident through the first incident surface... is reflected on the first reflective surface to be emitted through the exit surface
Data Source
AI summary
A light guide plate for displaying a three-dimensional (3D) image, and a 3D image display apparatus employing the same. The light guide plate includes a transparent body formed in a flat panel shape, and for guiding light with total internal reflection in the transparent body; and a plurality of viewing zone separation units aligned inside the transparent body. Light incident on two side surfaces of the light guide plate is separated into different viewing zones by reflective surfaces of the viewing zone separation units.