AU1883300A - Backlight for a portable device - Google Patents

Backlight for a portable device

Info

Publication number
AU1883300A
AU1883300A AU18833/00A AU1883300A AU1883300A AU 1883300 A AU1883300 A AU 1883300A AU 18833/00 A AU18833/00 A AU 18833/00A AU 1883300 A AU1883300 A AU 1883300A AU 1883300 A AU1883300 A AU 1883300A
Authority
AU
Australia
Prior art keywords
backlight
portable device
portable
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU18833/00A
Other languages
English (en)
Inventor
Christopher Atkinson
Ian Cameron
Ian Lewis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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
Priority claimed from GB9828878A external-priority patent/GB2345410A/en
Priority claimed from GBGB9913540.2A external-priority patent/GB9913540D0/en
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of AU1883300A publication Critical patent/AU1883300A/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • H04W52/027—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components by controlling a display operation or backlight unit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/727—Identification code transfer arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/038—Light emitting elements ambient light dependent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
AU18833/00A 1998-12-31 1999-12-24 Backlight for a portable device Abandoned AU1883300A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9828878A GB2345410A (en) 1998-12-31 1998-12-31 User interface control in portable device; battery saving
GB9828878 1998-12-31
GB9913540 1999-06-10
GBGB9913540.2A GB9913540D0 (en) 1999-06-10 1999-06-10 A display
PCT/GB1999/004446 WO2000041378A1 (fr) 1998-12-31 1999-12-24 Retro-eclairage pour dispositif portable

Publications (1)

Publication Number Publication Date
AU1883300A true AU1883300A (en) 2000-07-24

Family

ID=26314947

Family Applications (1)

Application Number Title Priority Date Filing Date
AU18833/00A Abandoned AU1883300A (en) 1998-12-31 1999-12-24 Backlight for a portable device

Country Status (3)

Country Link
EP (1) EP1142272A1 (fr)
AU (1) AU1883300A (fr)
WO (1) WO2000041378A1 (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1227642A1 (fr) * 2001-01-26 2002-07-31 Telefonaktiebolaget L M Ericsson (Publ) Dispositif de rétro-éclairage pour dispositif électronique portatif
EP1251675A1 (fr) * 2001-04-20 2002-10-23 Sony International (Europe) GmbH Téléphone mobile avec des moyens de commande pour commuter l'éclairage de fond
JP2003125061A (ja) 2001-10-16 2003-04-25 Fujitsu Ltd 携帯端末
US6664744B2 (en) * 2002-04-03 2003-12-16 Mitsubishi Electric Research Laboratories, Inc. Automatic backlight for handheld devices
GB2391995A (en) * 2002-08-15 2004-02-18 Seiko Epson Corp Mobile telephone comprising sensors which optimise the contrast or colour of the screen.
US7109465B2 (en) * 2003-04-04 2006-09-19 Avago Technologies Ecbu Ip (Singapore) Pte., Ltd. System and method for converting ambient light energy into a digitized electrical output signal for controlling display and keypad illumination on a battery powered system
CN1602132A (zh) 2003-09-24 2005-03-30 皇家飞利浦电子股份有限公司 一种控制发光装置的系统与方法
EP1754023A4 (fr) * 2004-02-13 2010-04-28 Radica Entpr Ltd Affichage lumineux concu pour un dispositif de jeu video
KR100630149B1 (ko) 2005-06-07 2006-10-02 삼성전자주식회사 휴대단말기에서 이미지 확대/축소 방법
KR100617716B1 (ko) 2005-06-09 2006-08-28 삼성전자주식회사 백라이트를 제어하는 휴대 단말기 및 그 방법
US7701434B2 (en) 2005-10-31 2010-04-20 Research In Motion Limited Automatic screen and keypad brightness adjustment on a mobile handheld electronic device
ATE381848T1 (de) * 2005-10-31 2008-01-15 Research In Motion Ltd Automatische hintergrundlichteinstellung der tastatur und bildschirm eines tragbaren elektronischen gerätes
KR20080075862A (ko) * 2005-12-13 2008-08-19 코닌클리케 필립스 일렉트로닉스 엔.브이. 주변 광 감지 기능을 구비한 디스플레이 디바이스
WO2007072322A2 (fr) * 2005-12-22 2007-06-28 Philips Intellectual Property & Standards Gmbh Compensation d'éclairement automatique sur des affichages
US7825891B2 (en) 2006-06-02 2010-11-02 Apple Inc. Dynamic backlight control system
US7932879B2 (en) * 2007-05-08 2011-04-26 Sony Ericsson Mobile Communications Ab Controlling electroluminescent panels in response to cumulative utilization
US7960682B2 (en) * 2007-12-13 2011-06-14 Apple Inc. Display device control based on integrated ambient light detection and lighting source characteristics
EP2075787A3 (fr) 2007-12-26 2010-07-07 TPO Displays Corp. Dispositifs d'affichage avec detection de la lumière ambiante
US8232958B2 (en) 2008-03-05 2012-07-31 Sony Mobile Communications Ab High-contrast backlight
US8610659B2 (en) 2008-05-12 2013-12-17 Blackberry Limited Method and apparatus for automatic brightness adjustment on a display of a mobile electronic device
US8471500B2 (en) 2010-06-30 2013-06-25 Research In Motion Limited Electronic device and method of illumination
EP2403223B1 (fr) * 2010-06-30 2017-08-16 BlackBerry Limited Adaptation d'éclairage d'un ecran en fonction de la lumière ambiante
US8629623B2 (en) 2011-04-28 2014-01-14 Echostar Technologies L.L.C. Smart illumination for electronic devices
US9477263B2 (en) 2011-10-27 2016-10-25 Apple Inc. Electronic device with chip-on-glass ambient light sensors
US9582083B2 (en) 2011-12-22 2017-02-28 Apple Inc. Directional light sensors
US9024530B2 (en) 2012-11-13 2015-05-05 Apple Inc. Synchronized ambient light sensor and display
US9129548B2 (en) 2012-11-15 2015-09-08 Apple Inc. Ambient light sensors with infrared compensation
US9070648B2 (en) 2012-11-27 2015-06-30 Apple Inc. Electronic devices with display-integrated light sensors
US8987652B2 (en) 2012-12-13 2015-03-24 Apple Inc. Electronic device with display and low-noise ambient light sensor with a control circuitry that periodically disables the display
US9310843B2 (en) 2013-01-02 2016-04-12 Apple Inc. Electronic devices with light sensors and displays
US10644077B1 (en) 2015-10-28 2020-05-05 Apple Inc. Display with array of light-transmitting windows
US10157590B1 (en) 2015-12-15 2018-12-18 Apple Inc. Display with localized brightness adjustment capabilities
US10163984B1 (en) 2016-09-12 2018-12-25 Apple Inc. Display with embedded components and subpixel windows

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031393A (ja) * 1983-07-29 1985-02-18 Nec Corp 電子式キ−・テレホン装置
AU9100091A (en) * 1990-11-16 1992-06-11 Universal Cellular, Inc. Portable telephone housing
JPH07294877A (ja) * 1994-04-20 1995-11-10 Casio Comput Co Ltd 表示バックライト制御装置
JPH09230827A (ja) * 1996-02-23 1997-09-05 Oki Electric Ind Co Ltd 液晶表示装置のバックライト制御方法
JPH1084408A (ja) * 1996-09-06 1998-03-31 Nippon Denki Ido Tsushin Kk 携帯型電子機器
JPH1096890A (ja) * 1996-09-20 1998-04-14 Casio Comput Co Ltd 表示装置
US6188380B1 (en) * 1997-02-03 2001-02-13 Nanao Corporation Photodetector of liquid crystal display and luminance control device using the same

Also Published As

Publication number Publication date
EP1142272A1 (fr) 2001-10-10
WO2000041378A1 (fr) 2000-07-13

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase