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GB2429107A - Displays, drivers and related methods - Google Patents

Displays, drivers and related methods Download PDF

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Publication number
GB2429107A
GB2429107A GB0620559A GB0620559A GB2429107A GB 2429107 A GB2429107 A GB 2429107A GB 0620559 A GB0620559 A GB 0620559A GB 0620559 A GB0620559 A GB 0620559A GB 2429107 A GB2429107 A GB 2429107A
Authority
GB
United Kingdom
Prior art keywords
brightness
display element
compensating
displays
oled
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.)
Granted
Application number
GB0620559A
Other versions
GB2429107B (en
GB0620559D0 (en
Inventor
Paul Richard Routley
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.)
Cambridge Display Technology Ltd
Original Assignee
Cambridge Display Technology 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
Application filed by Cambridge Display Technology Ltd filed Critical Cambridge Display Technology Ltd
Publication of GB0620559D0 publication Critical patent/GB0620559D0/en
Publication of GB2429107A publication Critical patent/GB2429107A/en
Application granted granted Critical
Publication of GB2429107B publication Critical patent/GB2429107B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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
    • G09G2370/00—Aspects of data communication
    • G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
    • G09G2370/042—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller for monitor identification

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

This invention generally relates to electronic displays, in particular organic light emitting diode (OLED) -based displays, and to techniques for compensating for variations in display element brightness such as those caused by ageing. A method of compensating for variations in brightness of an OLED display element of a passive OLED display device, the display device having a plurality of said OLED display elements mounted on a substrate, the method comprising: driving a said display element to emit light; detecting a brightness said emitted light after waveguiding by said substrate; and compensating for a variation in said display element brightness responsive to said detecting.

Description

GB 2429107 A continuation (74) Agent and/or Address for Service: Cambridge
Display Technology Limited c/o IP Department, Building 2020, Cambourne Business Park, Cambridgeshire, CB23 6DW, United Kingdom
GB0620559A 2004-04-22 2005-04-11 Displays, drivers and related methods Expired - Fee Related GB2429107B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0408960.3A GB0408960D0 (en) 2004-04-22 2004-04-22 Displays, drivers and related methods
PCT/GB2005/001397 WO2005104075A2 (en) 2004-04-22 2005-04-11 Display with optically coupled light sensor

Publications (3)

Publication Number Publication Date
GB0620559D0 GB0620559D0 (en) 2006-12-13
GB2429107A true GB2429107A (en) 2007-02-14
GB2429107B GB2429107B (en) 2008-10-15

Family

ID=32344201

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0408960.3A Ceased GB0408960D0 (en) 2004-04-22 2004-04-22 Displays, drivers and related methods
GB0620559A Expired - Fee Related GB2429107B (en) 2004-04-22 2005-04-11 Displays, drivers and related methods

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0408960.3A Ceased GB0408960D0 (en) 2004-04-22 2004-04-22 Displays, drivers and related methods

Country Status (2)

Country Link
GB (2) GB0408960D0 (en)
WO (1) WO2005104075A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2464562A (en) * 2008-10-23 2010-04-28 Cambridge Display Tech Ltd Display having one or more chiplet sensors for sensing light incident on the chiplet

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8344313B2 (en) * 2005-10-07 2013-01-01 Integrated Digital Technologies, Inc. Optical input type touch system and feedback control method thereof
GB2431276B (en) 2005-10-14 2008-11-12 Cambridge Display Tech Ltd Display monitoring systems
GB2466846A (en) * 2009-01-13 2010-07-14 Barco Nv Sensor system and method for detecting a property of light emitted from at least one display area of a display device
EP3023908B1 (en) 2014-11-21 2020-10-21 Nokia Technologies Oy An apparatus, method and computer program for identifying biometric features
EP3109907B1 (en) 2015-06-24 2023-08-23 Nokia Technologies Oy Device for emitting and detecting photons and method of producing the same
KR102581190B1 (en) * 2016-12-14 2023-09-21 삼성전자주식회사 Display apparatus and seam correction method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000172444A (en) * 1998-10-02 2000-06-23 Semiconductor Energy Lab Co Ltd Touch panel, display device equipped with touch panel, and electronic equipment equipped with display device
DE10138004A1 (en) * 2001-08-02 2003-02-20 Bosch Gmbh Robert Display device with an organic electro-luminescent display, especially for public transport use, has improved compensation of pixel brightness irregularities in the screen due to improved identification of such pixels
US20040032382A1 (en) * 2000-09-29 2004-02-19 Cok Ronald S. Flat-panel display with luminance feedback
US20040041756A1 (en) * 2002-08-29 2004-03-04 Tohoku Pioneer Corporation Device for and method of driving luminescent display panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000172444A (en) * 1998-10-02 2000-06-23 Semiconductor Energy Lab Co Ltd Touch panel, display device equipped with touch panel, and electronic equipment equipped with display device
US20040032382A1 (en) * 2000-09-29 2004-02-19 Cok Ronald S. Flat-panel display with luminance feedback
DE10138004A1 (en) * 2001-08-02 2003-02-20 Bosch Gmbh Robert Display device with an organic electro-luminescent display, especially for public transport use, has improved compensation of pixel brightness irregularities in the screen due to improved identification of such pixels
US20040041756A1 (en) * 2002-08-29 2004-03-04 Tohoku Pioneer Corporation Device for and method of driving luminescent display panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2464562A (en) * 2008-10-23 2010-04-28 Cambridge Display Tech Ltd Display having one or more chiplet sensors for sensing light incident on the chiplet
GB2464562B (en) * 2008-10-23 2011-06-01 Cambridge Display Tech Ltd Optical Sensor Array

Also Published As

Publication number Publication date
WO2005104075A2 (en) 2005-11-03
WO2005104075A3 (en) 2006-01-05
GB2429107B (en) 2008-10-15
GB0408960D0 (en) 2004-05-26
GB0620559D0 (en) 2006-12-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200411