WO1994018790A1 - Commande automatique de luminance dependant de la lumiere ambiante pour ecrans de visualisation - Google Patents

Commande automatique de luminance dependant de la lumiere ambiante pour ecrans de visualisation Download PDF

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Publication number
WO1994018790A1
WO1994018790A1 PCT/CH1994/000013 CH9400013W WO9418790A1 WO 1994018790 A1 WO1994018790 A1 WO 1994018790A1 CH 9400013 W CH9400013 W CH 9400013W WO 9418790 A1 WO9418790 A1 WO 9418790A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
luminance
light sensor
user
control
Prior art date
Application number
PCT/CH1994/000013
Other languages
German (de)
English (en)
Inventor
György FARKAS
Original Assignee
Barath, Ludwig
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Barath, Ludwig filed Critical Barath, Ludwig
Priority to AU58561/94A priority Critical patent/AU5856194A/en
Publication of WO1994018790A1 publication Critical patent/WO1994018790A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light

Definitions

  • the present invention relates to a method and a device with the aid of which the luminance or brightness, contrast or background lighting of screens is automatically and continuously adjusted as a function of the respective average ambient luminance in the visual field of the user.
  • the object of the present invention is therefore to propose a method or a device with the aid of which the luminance of the screen is continuously and automatically adapted to the average luminance in the visual field of the user.
  • the screen is coupled to an external light sensor which can be placed anywhere in the room and which monitors the luminance distribution in the visual field of the user.
  • Figure 1 shows the structure of the device. It comprises at least one light sensor 1, an active connection 2, the control of the screen luminance 3, the screen 4 and the housing 5.
  • the sensor 1 can be individually placed in the room and adjusted so that the detected solid angle corresponds approximately to the visual field of the user.
  • FIG. 2 shows a possible placement of the sensor 1.
  • An electronic control 3 installed in the display housing 5 or connectable via an interface ensures that brightness and contrast or the Backlight on the screen 'must be set so that the screen luminance is in an optimal ratio to the average luminance in the visual field.
  • the brightness and contrast adjustment knobs known on the conventional screens would serve the user to adapt the automatic control of the screen luminance to his own preferences. Another possibility for calibrating the control system is to place and adjust the sensor 1 appropriately. This sensor should then capture the solid angle that the respective user travels most frequently with his gaze.
  • the luminance of the screen can be set between 0 and approx. 100 cd / m2. With these values, luminance ratios of 1 to 3 in the visual field can be easily achieved.
  • a maximum setting of the screen luminance (100 cd / m2) would also ensure a portable luminance milieu with average field of view luminance of up to 300 cd / m2. This value is hardly exceeded in rooms with functioning sun and glare protection measures.
  • FIG. 3 shows a possible control characteristic.
  • the average luminance in the field of view L Q is linear with the screen luminance Lg in the lower region. At the limit, the curve approaches the maximum screen luminance asymptotically. As soon as the optimal luminance ratio 1 to 3 is exceeded, this is indicated by a control lamp on the screen housing 5.
  • the integration of the light sensor 1 into the screen housing 5 itself would also be conceivable. It is also important in this case that sensor 1 (or several sensors) detects the visual field of the user and that the detected solid angle can be set as flexibly as possible.
  • FIG. 4 shows a possible arrangement of two sensors 1 on the screen housing 5.
  • the housing 5 here has two “ears” at the two upper corners.
  • a light sensor is placed at the tips of the ears.
  • the sensors are set so that the solid angle detected by the two sensors detects the full background of the screen and corresponds approximately to the field of vision of the user.
  • FIG. 5 shows a possible solution for the shielding of the sensor 1.
  • the light sensor 1 is encased with a displaceable sleeve 6. Depending on the position of the sleeve, a smaller or larger solid angle can be set.
  • a method for automatic control of the luminance of screens is thus proposed, the average luminance in the visual field of the user being detected by an externally attached light sensor 1 and this clearly quantifiable size serving as a guide variable for an ergonomically correct, automatic control of the screen luminance.
  • a device for carrying out the method with a screen 4 with a housing 3 provided with a controller 3 for changing the screen luminance, in particular the brightness, the contrast and the background lighting, wherein it comprises at least one light sensor 1 which is connected to the controller 3 is so operatively connected that the arrangement of the light sensor 1 in the direction of view, and the shielding of the same on the Field of view of the user, the luminance of the screen 4 is automatically controllable as a function of the luminance distribution in the field of view of the user.
  • a possible embodiment of the device is characterized in that the at least one light sensor 1 is arranged separately from the screen 4 in the room at a convenient location, and with the controller 3 e.g. is operatively connected by wire, infrared radio or ultrasound transmission.
  • the at least one light sensor 1 can also be attached to the screen housing 5 itself.
  • the contrast and / or the brightness and / or the background lighting can also be controlled automatically by the light sensor 1.
  • the device can also be used with a television or video screen or other data display devices.
  • a display device e.g. for measuring instruments and clocks can be controlled accordingly.
  • the device can also be implemented in such a way that the looped-through RGB, video or YC signals are influenced by an externally arranged control.
  • controller 3 It is advisable to provide the controller 3 with at least one control lamp, by means of which an unfavorable luminance ratio between the screen 4 and the surroundings can be signaled.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'invention concerne une commande automatique dépendant de la lumière ambiante, pour écrans de visualisation, qui permet d'adapter automatiquement en continu la luminance de l'écran de visualisation à la luminance moyenne du champ visuel de l'utilisateur. L'écran de visualisation (4) est couplé avec un photodétecteur (1) externe pouvant être placé individuellement à n'importe quel endroit de la pièce et réglé de manière à ce que l'angle solide qu'il couvre corresponde approximativement au champ visuel de l'utilisateur. Une commande électronique (3) intégrée dans l'écran de visualisation (4) ou bien raccordable audit écran par l'intermédiaire d'une interface assure le réglage de la luminosité, du contraste ou de l'éclairage de fond de l'écran de visualisation, de manière à ce que le rapport de la luminance de l'écran à la luminance moyenne du champ visuel soit optimal.
PCT/CH1994/000013 1993-02-05 1994-01-25 Commande automatique de luminance dependant de la lumiere ambiante pour ecrans de visualisation WO1994018790A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58561/94A AU5856194A (en) 1993-02-05 1994-01-25 Environment-dependent automatic luminance control for display scrreens

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH349/93-4 1993-02-05
CH34993 1993-02-05
CH2951/93-3 1993-10-02
CH295193 1993-10-02

Publications (1)

Publication Number Publication Date
WO1994018790A1 true WO1994018790A1 (fr) 1994-08-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1994/000013 WO1994018790A1 (fr) 1993-02-05 1994-01-25 Commande automatique de luminance dependant de la lumiere ambiante pour ecrans de visualisation

Country Status (2)

Country Link
AU (1) AU5856194A (fr)
WO (1) WO1994018790A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508623A1 (de) * 1995-03-10 1996-09-12 Sel Alcatel Ag Schaltungsanordnung zur Anzeige und zur Regelung von Umgebungslichtverhältnissen
WO1999004562A1 (fr) * 1997-07-14 1999-01-28 LEMLEY, Michael, S. Traitement de signaux video dependants de la lumiere ambiante
WO2000021289A1 (fr) * 1998-10-06 2000-04-13 Deutsche Thomson-Brandt Gmbh Appareil a ecran a consommation electrique reduite
EP1178672A2 (fr) * 2000-07-31 2002-02-06 Seiko Epson Corporation Appareil d'affichage d'images et support d'enregistement d'informations
WO2002012844A1 (fr) * 2000-08-04 2002-02-14 Thomson Licensing S.A. Circuit comportant un capteur de signal et de luminosite environnante combine
GB2389730A (en) * 2002-06-14 2003-12-17 Mitac Int Corp Display with automatic brightness control
US6894697B2 (en) 2000-07-31 2005-05-17 Seiko Epson Corporation Environment-compliant image display system and program
EP1650963A2 (fr) * 2004-10-25 2006-04-26 Bose Corporation Augmentation de contraste
EP1793597A1 (fr) * 2005-11-30 2007-06-06 ASUSTeK Computer Inc. Système d'affichage et méthode d'affichage capable du réglage de luminance automatique
US7595811B2 (en) 2001-07-26 2009-09-29 Seiko Epson Corporation Environment-complaint image display system, projector, and program
US7880746B2 (en) 2006-05-04 2011-02-01 Sony Computer Entertainment Inc. Bandwidth management through lighting control of a user environment via a display device
US7965859B2 (en) 2006-05-04 2011-06-21 Sony Computer Entertainment Inc. Lighting control of a user environment via a display device
US9108108B2 (en) 2007-09-05 2015-08-18 Sony Computer Entertainment America Llc Real-time, contextual display of ranked, user-generated game play advice
US9126116B2 (en) 2007-09-05 2015-09-08 Sony Computer Entertainment America Llc Ranking of user-generated game play advice
US9437165B2 (en) 2013-10-31 2016-09-06 Nvidia Corporation Power-efficient control of display data configured to be rendered on a display unit of a data processing device
US9530342B2 (en) 2013-09-10 2016-12-27 Microsoft Technology Licensing, Llc Ambient light context-aware display
US9833707B2 (en) 2012-10-29 2017-12-05 Sony Interactive Entertainment Inc. Ambient light control and calibration via a console
US10128914B1 (en) 2017-09-06 2018-11-13 Sony Interactive Entertainment LLC Smart tags with multiple interactions
US10561942B2 (en) 2017-05-15 2020-02-18 Sony Interactive Entertainment America Llc Metronome for competitive gaming headset
US10786736B2 (en) 2010-05-11 2020-09-29 Sony Interactive Entertainment LLC Placement of user information in a game space

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Publication number Priority date Publication date Assignee Title
DE1201398B (de) * 1959-11-27 1965-09-23 Nordmende Einrichtung zur kombinierten selbsttaetigen raum-lichtabhaengigen und fernbedienbaren Einstellung des Kontrastes und/oder der Helligkeit der Bildes bei einem Fernsehempfaenger
US3961361A (en) * 1975-05-23 1976-06-01 Rca Corporation Gain control arrangement useful in a television signal processing system
US3983575A (en) * 1974-05-20 1976-09-28 Sony Corporation Color saturation and contrast control circuitry responsive to ambient light
US4090216A (en) * 1976-05-26 1978-05-16 Gte Sylvania Incorporated Ambient light contrast and color control circuit
JPS59202779A (ja) * 1983-05-02 1984-11-16 Matsushita Electric Ind Co Ltd 自発光形画像表示用調光装置
EP0145966A2 (fr) * 1983-11-28 1985-06-26 General Electric Company Système de réglage de la luminosité pour un appareil d'affichage vidéo à tube à rayon cathodiques
JPS61270979A (ja) * 1985-05-25 1986-12-01 Matsushita Electric Works Ltd モニタ−用ｃｒｔの輝度調整回路
US4769708A (en) * 1987-04-23 1988-09-06 Rca Licensing Corporation Manual and automatic ambient light sensitive picture control for a television receiver
EP0285521A1 (fr) * 1987-04-03 1988-10-05 Thomson-Csf Système de visualisation de données lumineuses, à lisibilité améliorée

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DE1201398B (de) * 1959-11-27 1965-09-23 Nordmende Einrichtung zur kombinierten selbsttaetigen raum-lichtabhaengigen und fernbedienbaren Einstellung des Kontrastes und/oder der Helligkeit der Bildes bei einem Fernsehempfaenger
US3983575A (en) * 1974-05-20 1976-09-28 Sony Corporation Color saturation and contrast control circuitry responsive to ambient light
US3961361A (en) * 1975-05-23 1976-06-01 Rca Corporation Gain control arrangement useful in a television signal processing system
US4090216A (en) * 1976-05-26 1978-05-16 Gte Sylvania Incorporated Ambient light contrast and color control circuit
JPS59202779A (ja) * 1983-05-02 1984-11-16 Matsushita Electric Ind Co Ltd 自発光形画像表示用調光装置
EP0145966A2 (fr) * 1983-11-28 1985-06-26 General Electric Company Système de réglage de la luminosité pour un appareil d'affichage vidéo à tube à rayon cathodiques
JPS61270979A (ja) * 1985-05-25 1986-12-01 Matsushita Electric Works Ltd モニタ−用ｃｒｔの輝度調整回路
EP0285521A1 (fr) * 1987-04-03 1988-10-05 Thomson-Csf Système de visualisation de données lumineuses, à lisibilité améliorée
US4769708A (en) * 1987-04-23 1988-09-06 Rca Licensing Corporation Manual and automatic ambient light sensitive picture control for a television receiver

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Title
"LIGHT-CONTROLLED SOFTWARE PRODUCTS", IBM TECHNICAL DISCLOSURE BULLETIN, vol. 35, no. 3, 30 August 1992 (1992-08-30), NEWYORK US, pages 267 - 269, XP000326265 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 127 (E - 501) 21 April 1987 (1987-04-21) *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 65 (E - 304) 26 March 1985 (1985-03-26) *

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19508623A1 (de) * 1995-03-10 1996-09-12 Sel Alcatel Ag Schaltungsanordnung zur Anzeige und zur Regelung von Umgebungslichtverhältnissen
US5734439A (en) * 1995-03-10 1998-03-31 Alcatel N.V. Circuit arrangement for indicating ambient light conditions of a video pickup and video display device
AU707306B2 (en) * 1995-03-10 1999-07-08 Alcatel N.V. Ambient ligh indication for video device
WO1999004562A1 (fr) * 1997-07-14 1999-01-28 LEMLEY, Michael, S. Traitement de signaux video dependants de la lumiere ambiante
US6229577B1 (en) 1997-07-14 2001-05-08 U.S. Philips Corporation Ambient light-dependent video-signal processing
WO2000021289A1 (fr) * 1998-10-06 2000-04-13 Deutsche Thomson-Brandt Gmbh Appareil a ecran a consommation electrique reduite
EP1178672A2 (fr) * 2000-07-31 2002-02-06 Seiko Epson Corporation Appareil d'affichage d'images et support d'enregistement d'informations
EP1178672A3 (fr) * 2000-07-31 2003-04-16 Seiko Epson Corporation Appareil d'affichage d'images et support d'enregistement d'informations
US6847374B2 (en) 2000-07-31 2005-01-25 Seiko Epson Corporation Environment-compliant image display system and program
US6894697B2 (en) 2000-07-31 2005-05-17 Seiko Epson Corporation Environment-compliant image display system and program
WO2002012844A1 (fr) * 2000-08-04 2002-02-14 Thomson Licensing S.A. Circuit comportant un capteur de signal et de luminosite environnante combine
US7133079B2 (en) 2000-08-04 2006-11-07 Thomson Licensing Circuit comprising a combined signal and environmental light sensor
US7986332B2 (en) 2001-07-26 2011-07-26 Seiko Epson Corporation Environment-compliant image display system, projector, and program
US7595811B2 (en) 2001-07-26 2009-09-29 Seiko Epson Corporation Environment-complaint image display system, projector, and program
GB2389730A (en) * 2002-06-14 2003-12-17 Mitac Int Corp Display with automatic brightness control
US7545397B2 (en) 2004-10-25 2009-06-09 Bose Corporation Enhancing contrast
EP1650963A3 (fr) * 2004-10-25 2006-07-26 Bose Corporation Augmentation de contraste
EP1650963A2 (fr) * 2004-10-25 2006-04-26 Bose Corporation Augmentation de contraste
EP1793597A1 (fr) * 2005-11-30 2007-06-06 ASUSTeK Computer Inc. Système d'affichage et méthode d'affichage capable du réglage de luminance automatique
US7880746B2 (en) 2006-05-04 2011-02-01 Sony Computer Entertainment Inc. Bandwidth management through lighting control of a user environment via a display device
US7965859B2 (en) 2006-05-04 2011-06-21 Sony Computer Entertainment Inc. Lighting control of a user environment via a display device
US10486069B2 (en) 2007-09-05 2019-11-26 Sony Interactive Entertainment America Llc Ranking of user-generated game play advice
US9108108B2 (en) 2007-09-05 2015-08-18 Sony Computer Entertainment America Llc Real-time, contextual display of ranked, user-generated game play advice
US9126116B2 (en) 2007-09-05 2015-09-08 Sony Computer Entertainment America Llc Ranking of user-generated game play advice
US11478706B2 (en) 2010-05-11 2022-10-25 Sony Interactive Entertainment LLC Placement of user information in a game space
US10786736B2 (en) 2010-05-11 2020-09-29 Sony Interactive Entertainment LLC Placement of user information in a game space
US9833707B2 (en) 2012-10-29 2017-12-05 Sony Interactive Entertainment Inc. Ambient light control and calibration via a console
US9950259B2 (en) 2012-10-29 2018-04-24 Sony Interactive Entertainment Inc. Ambient light control and calibration via a console
US9530342B2 (en) 2013-09-10 2016-12-27 Microsoft Technology Licensing, Llc Ambient light context-aware display
US10204539B2 (en) 2013-09-10 2019-02-12 Microsoft Technology Licensing, Llc Ambient light context-aware display
US9437165B2 (en) 2013-10-31 2016-09-06 Nvidia Corporation Power-efficient control of display data configured to be rendered on a display unit of a data processing device
US10561942B2 (en) 2017-05-15 2020-02-18 Sony Interactive Entertainment America Llc Metronome for competitive gaming headset
US10541731B2 (en) 2017-09-06 2020-01-21 Sony Interactive Entertainment LLC Smart tags with multiple interactions
US10128914B1 (en) 2017-09-06 2018-11-13 Sony Interactive Entertainment LLC Smart tags with multiple interactions

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Publication number Publication date
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