Light Guide Plate Parallax Barrier Integration

Solution Overview

Problem

Parallax-barrier stereoscopic display apparatuses require a larger number of components and more space compared to traditional two-dimensional display apparatuses due to the need for a special component, the parallax barrier.

Innovation Solution

A light guide plate with alternating reflection and scattering areas is used to function as a parallax barrier, reducing the number of components and space requirements by internally reflecting and scattering light to create the necessary image separation for stereoscopic vision.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a parallax barrier is added to enable stereoscopic vision, then three-dimensional display capability is improved, but the number of components and layout space increase

Engineering Contradiction:

Improvestereoscopic display capabilityVSAvoidnumber of components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the backlight guide plate and parallax barrier into a single integrated component. The backlight guide plate incorporates both light guiding functions and parallax barrier functions, eliminating the need for a separate parallax barrier component. This merging reduces the total number of components while maintaining stereoscopic display capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The backlight guide plate is designed to perform multiple functions simultaneously: it guides light from the light source, controls light distribution, and acts as a parallax barrier for stereoscopic vision. This multi-functionality allows a single component to replace what would traditionally require multiple separate components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a parallax barrier is added to enable stereoscopic vision, then three-dimensional display capability is improved, but the layout space required increases

Engineering Contradiction:

Improvestereoscopic display capabilityVSAvoidlayout space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines the backlight guide plate and parallax barrier into a single integrated component. The backlight guide plate incorporates both light guiding functions and parallax barrier functions, eliminating the need for a separate parallax barrier component. This merging reduces the total number of components while maintaining stereoscopic display capability.

Inventive Principle:

Principle #5Merging (Combining)

3Manufacturing precision

If a separate parallax barrier component is used, then image separation for stereoscopic vision is achieved, but component count and space increase

Engineering Contradiction:

Improveimage separation qualityVSAvoidcomponent count

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent combines the backlight guide plate and parallax barrier into a single integrated component. The backlight guide plate incorporates both light guiding functions and parallax barrier functions, eliminating the need for a separate parallax barrier component. This merging reduces the total number of components while maintaining stereoscopic display capability.

Inventive Principle:

Principle #5Merging (Combining)

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

This configuration allows for a compact stereoscopic display apparatus that can switch between two-dimensional and three-dimensional display modes with reduced component count and space usage, while maintaining effective image separation for stereoscopic vision.

Implementation Method 1

a light guide plate that receives light from the light source

Methodology Applied

Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

the light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged to form a parallax barrier

Methodology Applied

Scientific EffectLight scattering: Scattering

Data Source

PatentUS9507159B2Light source device and stereoscopic display apparatus

Publication Date: 2016.11.29 SONY GROUP CORP

AI summary

A light guide plate is described that includes a plurality of reflection areas and a plurality of scattering areas arranged to provide light to a display panel to display images with parallax. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged to form a parallax barrier, and a display panel that displays an image based on light received from the light guide plate. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged in an alternating pattern, and a display panel that displays an image based on light received from the light guide plate. An apparatus is described that includes a backlight positioned on a first side of the light guide plate.