Multi-view Display System Using Polarization Filtering

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Solution Overview

Problem

Conventional display systems that attempt to show multiple views on a single screen either compromise the size of each image or make all views visible to all users, leading to visual distractions and reduced utility.

Innovation Solution

A multi-view display system that uses a controller to manage multiple video streams, filtering elements to separate and scale images for individual viewers, allowing each user to see distinct, full-sized views without others seeing their images, and utilizing filtering technologies like glasses with polarized filters to direct specific views to users.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a single display screen is divided to show multiple images, then multiple views can be displayed simultaneously, but each image becomes smaller and compromises the utility and experience of each view

Engineering Contradiction:
Improvenumber of views displayedVSAvoidsize of each image
Core Design Contradiction:
Quantity of substanceVSArea of moving object

Solution Approach 1:

The patent transitions from a two-dimensional screen division approach to a three-dimensional spatial separation approach. Multiple images are projected at different angles and positions in 3D space, allowing each image to maintain full size on the screen while being directed to specific viewing zones. This dimensional change resolves the contradiction by enabling multiple full-sized views without compromising individual image area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent segments the viewing experience by directing different images to different spatial zones around the display. Instead of dividing the screen area, the system segments the viewing directions and positions, allowing each viewer to access a specific full-sized image based on their location. This segmentation approach maintains full image size while providing multiple simultaneous views.

Inventive Principle:
Principle #1Segmentation

2Area of moving object

If multiple screens are used to display multiple views, then each view can be full-size, but the device complexity and space requirements increase

Engineering Contradiction:
Improvesize of each imageVSAvoidnumber of display screens
Core Design Contradiction:
Area of moving objectVSDevice complexity

Solution Approach 1:

The patent merges multiple display functions into a single display screen by using optical manipulation techniques. Multiple full-sized images are projected onto one screen simultaneously, with each image directed to specific viewing zones through controlled reflection and refraction. This merging approach eliminates the need for multiple physical screens while maintaining full image size for each view.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces optical intermediaries (mirrors, prisms, and optical elements) between the image sources and the display screen. These intermediaries manipulate light paths to direct multiple full-sized images to different spatial zones on a single screen, reducing device complexity by eliminating the need for multiple screens while preserving image size.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If all views are made visible to all users on a display screen, then all users can see all content, but this creates visual distractions and limits potential usage

Engineering Contradiction:
Improvecontent accessibilityVSAvoidvisual distraction
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies local quality by providing different visual content to different spatial zones around the display. Each viewing position receives a customized image tailored to that location, allowing selective content delivery. This approach enables content accessibility for multiple users while eliminating visual distractions by ensuring each user only sees their intended content in their specific viewing zone.

Inventive Principle:
Principle #3Local quality

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

Enables multiple users to simultaneously view different content on a single screen without visual distractions, providing full-sized, personalized images and enhancing the utility of the display system by allowing customized content delivery.

Implementation Method 1

utilizing filtering technologies like glasses with polarized filters to direct specific views to users

Methodology Applied
Scientific EffectPolarization filtering: Polarisation

Data Source

PatentUS9693046B2Multi-view display system
Publication Date: 2017.06.27 LATTICE SEMICON CORP
  • US9693046B2 patent drawing
  • US9693046B2 patent drawing
  • US9693046B2 patent drawing

AI summary

Embodiments of the invention are generally directed to a multi-view display system. An embodiment of an apparatus includes a display screen to display multiple views simultaneously, and a controller to control the views presented on the display screen. The apparatus is configurable by the controller to provide multiple view settings, the view settings including a first setting in which the apparatus provides a single view to each viewer of the display screen and a second setting in which the apparatus provides a first view to a first viewer of the display screen and a second view to a second viewer of the display screen. A first filtering element filters views presented to viewers of the display screen such that an intended view is displayed to one or more viewers.