Projector Image Visibility Control for Unwanted Content Prevention

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Solution Overview

Problem

Existing display technologies do not effectively prevent the public display of unwanted images, especially when the image source cannot be checked beforehand, leading to a lack of methods for ensuring that undesired images are not displayed.

Innovation Solution

A display device and system that includes an integrated circuit to generate a second image with reduced visibility from a first image, with a processor controlling the display to show the second image under certain conditions and the first image under others, allowing for temporary prevention of displaying unwanted images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the display device directly displays the first image from the image supply device, then the display response speed is improved, but the risk of displaying unwanted images increases

Engineering Contradiction:

Improvedisplay response speedVSAvoidimage display safety

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system performs preliminary actions by generating a second image with reduced visibility before displaying the first image. This preliminary processing allows users to assess whether the original image is appropriate for public display, preventing unwanted images from being displayed while maintaining fast response when images are appropriate.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the display device generates and displays a second image with reduced visibility, then the safety of image display is improved, but the processing time increases

Engineering Contradiction:

Improveimage display safetyVSAvoidimage processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system implements periodic action by switching between displaying the second image (when safety is concerned) and the first image (when safety is confirmed). This periodic switching optimizes the balance between processing time and display safety, reducing time loss while maintaining reliability.

Inventive Principle:

Principle #19Periodic action

3Ease of operation

If the display device provides real-time image display, then the ease of operation is improved, but the ability to prevent unwanted image display is reduced

Engineering Contradiction:

Improvereal-time display capabilityVSAvoidunwanted image exposure

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The second image with reduced visibility serves as an intermediary between the original image and the public display. This intermediary allows users to assess image appropriateness in real-time while preventing unwanted images from being directly exposed, thus maintaining ease of operation while reducing harmful factors.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11652966B2Display device, display system, and display control method

Publication Date: 2023.05.16 SEIKO EPSON CORP

AI summary

A projector includes a projecting section configured to display an image, an image interface to which an image signal corresponding to a first image is input from a personal computer, an image processing section configured to generate a second image obtained by reducing visibility of the first image based on the image signal, and a first control section configured to, when a first condition is satisfied, cause the projecting section to display the second image and, when a second condition is satisfied, cause the projecting section to display the first image.