Multi-Resolution Table Display With Under-Table Projection

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Solution Overview

Problem

Conventional digital table display systems are space-intensive, with projection sources positioned above the table, leading to image obstruction by the user's hand or arm, and lack flexibility in high-resolution image placement.

Innovation Solution

A multi-resolution digital table display system with a peripheral projection device and a foveal projection device positioned under the table, allowing for compact installation and adjustable high-resolution image projection without obstruction, using an image module to stitch low-resolution peripheral and high-resolution foveal images onto a projection screen.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If projection sources are disposed above the table, then the system structure is simple, but the system demands too much space and images are often sheltered by user's hand or arm

Engineering Contradiction:

Improveuser comfortVSAvoidspace for operation and installment

Core Design Contradiction:

Ease of operationVSArea of stationary object

Solution Approach 1:

The patent inverts the conventional arrangement by placing projection sources below the table surface instead of above it. This inversion resolves the contradiction by eliminating image obstruction from user's hand or arm while maintaining system functionality, and simultaneously reduces the space required for operation and installation.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of manufacture

If projection sources are disposed above the table, then the installation structure is straightforward, but the system demands too much space

Engineering Contradiction:

Improveinstallation simplicityVSAvoidspace for operation and installment

Core Design Contradiction:

Ease of manufactureVSArea of stationary object

Solution Approach 1:

Inventive Principle:

Principle #13The other way round (Inversion)

3Adaptability or versatility

If the projection position for high resolution is fixed, then the system structure is stable, but users cannot view images with high resolution at other areas of the digital table

Engineering Contradiction:

Improvehigh-resolution image placement flexibilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs dynamic projection technology that allows the high-resolution projection position to be moved to different areas of the projection screen according to user needs. This dynamic capability provides adaptability for viewing high-resolution images at various locations while maintaining manageable system complexity through software control.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS7967444B2Multi-resolution digital table display system with projection device

Publication Date: 2011.06.28 NAT TAIWAN UNIV

AI summary

A multi-resolution digital table display system is provided for integrally displaying an image picture with more than one resolution. The multi-resolution digital table display system includes a table, a peripheral projection device, a foveal projection device, and an image module. For saving space and avoiding affection of user's hand, the peripheral projection device and the foveal projection device required for projecting images are disposed under the table. The image module provides a peripheral image with a first resolution to the peripheral projection device for projecting the same to a projection screen, and provides a foveal image with a second resolution to the foveal projection device for projecting the same to the projecting screen, such that an image picture can be integrally displayed on the projecting screen.