View Blind Check System Using Mirror Reflection

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Solution Overview

Problem

Users of working spaces with polarizing films to prevent peeping are uncertain whether their displays are blinded without exiting the space, as the polarization direction of the display's light output is unknown.

Innovation Solution

A view blind check system comprising a polarizing film with a mirror member arranged opposite to the display, allowing the display's image to be reflected through the polarizing film, enabling users to check if the display is blinded from within the space by observing the reflected image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a polarizing film is arranged to prevent peeping, then privacy protection is improved, but the ability to check whether the display is blinded from inside the space deteriorates

Engineering Contradiction:

Improvepeeping preventionVSAvoidblinding check convenience

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

A camera is introduced as an intermediary device to capture images of the display from inside the space. The camera allows users to check whether the display is properly blinded by capturing and displaying images on a monitor, eliminating the need to exit the space for visual inspection while maintaining the privacy protection function of the polarizing film.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The manual visual inspection method (requiring users to physically exit the space and look through the polarizing film) is replaced with an automated optical system. The camera system automatically captures images and displays them electronically, substituting the mechanical action of physical inspection with an automated imaging and display system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the polarization direction of the display is unknown, then adaptability to different displays is improved, but user confidence in blinding effectiveness deteriorates

Engineering Contradiction:

Improvedisplay compatibilityVSAvoidblinding effectiveness confidence

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The camera system provides visual feedback by capturing images of the display from inside the space and displaying them on a monitor. Users can directly observe whether the display content is visible or blinded through this feedback mechanism, allowing them to confirm the effectiveness of the polarizing film arrangement without needing to know the specific polarization direction of different display types.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If users must exit the space to check blinding, then measurement accuracy of blinding effectiveness is improved, but loss of time increases

Engineering Contradiction:

Improveblinding check accuracyVSAvoidtime to check blinding

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The physical action of exiting the space and manually inspecting the display is replaced with an automated camera system that captures and displays images electronically. This substitution maintains the accuracy of blinding verification while eliminating the time loss associated with physical movement and manual inspection.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service blinding verification by automatically capturing images with the camera and displaying them on the monitor. Users can independently check the blinding effectiveness without requiring assistance or leaving the space, making the verification process both accurate and time-efficient.

Inventive Principle:

Principle #25Self-service

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 users to confirm whether the display is blinded or not from inside the space, allowing for immediate adjustment of the polarizing film to ensure privacy, enhancing user convenience and privacy control.

Implementation Method 1

the mirror member reflects an image of the display through the polarizing film

Methodology Applied

Scientific EffectReflection: Reflection

Implementation Method 2

a partition including a polarizing film arranged so that the polarization direction of light to be output and an absorption-axis direction become parallel to each other is arranged, to thereby make information displayed on the display invisible from an outside

Methodology Applied

Scientific EffectPolarisation: Polarisation

Data Source

PatentUS20240426699A1View blind check system, view blind check method, and view blind method

Publication Date: 2024.12.26 NITTO DENKO CORP

AI summary

There is provided a view blind check system that allows whether or not a display arranged inside a space viewable through a polarizer is blinded to be checked. The view blind check system includes a polarizing film including the polarizer and a mirror member. The mirror member is arranged on a side of the polarizing film opposite to a side on which the display is arranged so that the mirror member reflects an image of the display through the polarizing film.