IMPROVING VIEWER PRIVACY BY CONTROLLING OFF-AXIS CONTRAST WITH FACE RECOGNITION

The present disclosure relates identifying an intended viewer and an unintended viewer of a liquid crystal display (LCD) using face recognition technology. Once identified the system may determine a face position for the unintended viewer. The system may modulate the voltage applied at a third elect...

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Hauptverfasser:	EMERTON, Neil, LARGE, Timothy A, SENGUPTA, Sunando
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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creator	EMERTON, Neil LARGE, Timothy A SENGUPTA, Sunando
description	The present disclosure relates identifying an intended viewer and an unintended viewer of a liquid crystal display (LCD) using face recognition technology. Once identified the system may determine a face position for the unintended viewer. The system may modulate the voltage applied at a third electrode on the color filter layer of the LCD to achieve a certain off-axis contrast that may reduce the unintended viewer's visibility of the LCD without restricting the visibility of the intended viewer. Ultimately, the present disclosure provides enhanced privacy options for the intended viewer with a lightweight, inexpensive, and highly transportable system. La présente invention concerne l'identification d'un spectateur prévu et d'un spectateur indésirable d'un écran à cristaux liquides (LCD) à l'aide de la technologie de reconnaissance faciale. Une fois ceux-ci identifiés, le système peut déterminer une position de visage pour le spectateur indésirable. Le système peut moduler la tension appliquée au niveau d'une troisième électrode située sur la couche de filtre coloré de l'écran LCD afin d'obtenir un certain contraste hors axe qui peut réduire la visibilité de l'écran LCD pour le spectateur indésirable sans restreindre la visibilité du spectateur prévu. Enfin, la présente invention concerne des options de confidentialité améliorées pour le spectateur prévu avec un système léger, peu coûteux et hautement transportable.
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Once identified the system may determine a face position for the unintended viewer. The system may modulate the voltage applied at a third electrode on the color filter layer of the LCD to achieve a certain off-axis contrast that may reduce the unintended viewer's visibility of the LCD without restricting the visibility of the intended viewer. Ultimately, the present disclosure provides enhanced privacy options for the intended viewer with a lightweight, inexpensive, and highly transportable system. La présente invention concerne l'identification d'un spectateur prévu et d'un spectateur indésirable d'un écran à cristaux liquides (LCD) à l'aide de la technologie de reconnaissance faciale. Une fois ceux-ci identifiés, le système peut déterminer une position de visage pour le spectateur indésirable. Le système peut moduler la tension appliquée au niveau d'une troisième électrode située sur la couche de filtre coloré de l'écran LCD afin d'obtenir un certain contraste hors axe qui peut réduire la visibilité de l'écran LCD pour le spectateur indésirable sans restreindre la visibilité du spectateur prévu. Enfin, la présente invention concerne des options de confidentialité améliorées pour le spectateur prévu avec un système léger, peu coûteux et hautement transportable.</abstract><oa>free_for_read</oa></addata></record>
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subjects	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY EDUCATION FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEALS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
title	IMPROVING VIEWER PRIVACY BY CONTROLLING OFF-AXIS CONTRAST WITH FACE RECOGNITION
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