Time-Multiplexed Display With Shuttering Goggles

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Solution Overview

Problem

Existing display technologies do not effectively allow multiple users to view different images or scenes on a single screen without interference, particularly in space-limited areas like airplanes, and lack mechanisms for private and public image sharing.

Innovation Solution

The use of shuttering goggles synchronized with a display to alternate between different image sequences, allowing users to select and view distinct images or viewpoints, with a system that combines private and public images to create a unified public image sequence, and includes partitioning of the display for dedicated viewing regions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single display is used for multiple users, then space utilization is improved, but image interference between users occurs

Engineering Contradiction:

Improvedisplay areaVSAvoidimage interference

Core Design Contradiction:

Area of stationary objectVSObject-generated harmful factors

Solution Approach 1:

The display alternates between showing different images for different users at different time intervals. The shuttering goggles synchronize with this periodic display to block out images not intended for the current user, eliminating interference while maintaining space efficiency.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

Shuttering goggles act as an intermediary device between the display and each user's eyes. The goggles selectively block light from the display at specific times, allowing multiple users to view different content on the same display without seeing each other's content.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If shuttering goggles are used for private viewing, then viewing privacy is improved, but device complexity increases

Engineering Contradiction:

Improveviewing privacyVSAvoidsystem complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The shuttering goggles serve multiple functions: they enable private viewing for individual users, synchronize with the display timing, and work with the time-multiplexed display system. This multi-functionality justifies the added device complexity by providing comprehensive viewing privacy and coordination capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple image sequences are displayed simultaneously, then user selection flexibility is improved, but image interference between users worsens

Engineering Contradiction:

Improveuser selection flexibilityVSAvoidimage interference

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

Instead of displaying multiple image sequences simultaneously, the system displays them periodically in sequence. Each user's goggles are synchronized to view only their designated sequence at the appropriate times, maintaining flexibility while preventing interference.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The display time is segmented into different intervals, with each interval dedicated to showing a specific image sequence for a particular user. This temporal segmentation allows multiple users to access different content on the same display without interference.

Inventive Principle:

Principle #1Segmentation

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 view different images or scenes on a single display without interference, provides private and public image sharing, and ensures that private content remains inaccessible to non-users, enhancing viewing experiences in shared spaces.

Implementation Method 1

shuttering goggles, goggles, or LCD shuttering goggles), which are programmed to alternate between transparent and opaque

Methodology Applied

Scientific EffectLight absorption and transmission control: Absorption (EM radiation)

Implementation Method 2

LCD screens have increasingly high refresh rates which now exceed 120 Hertz, and now may exceed 240 Hertz

Methodology Applied

Scientific EffectHigh refresh rate display:

Implementation Method 3

The lenses of such a 3D viewing system are synchronized with the display to provide the three-dimensional experience

Methodology Applied

Scientific EffectSynchronization:

Data Source

PatentUS8988513B2Method and system for time-multiplexed shared display

Publication Date: 2015.03.24 AT&T INTELLECTUAL PROPERTY I L P

AI summary

A method is provided for sharing a display. The method includes displaying periodically a first image sequence on the display in synchronicity with a first signal, and displaying periodically a second image sequence on the display in synchronicity with a second signal. The method also includes selecting by a user the first image sequence for viewing, and shuttering periodically a set of goggles for the user in synchronicity with the first signal. A method is provided for sharing a display. The method includes displaying periodically a private image sequence on the display in synchronicity with a first signal, and displaying periodically a non-private image sequence on the display. In the method, the private image sequence and the non-private image sequence combine to form a public image sequence on the display. A system is provided for sharing a display.