Gamma curve correction for TN and TFT display modules

A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma adjustment or also adjustment of other display parameters e.g. brightness or contrast as e.g. LCD or OLED display modules are disclosed. This is perf...

Full description

Saved in:
Bibliographic Details
Main Authors Burkhardt, Helmut, Stellberger, Achim, Zehnich, Paul, Kronmuller, Frank
Format Patent
LanguageEnglish
Published 03.04.2012
Online AccessGet full text

Cover

Abstract A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma adjustment or also adjustment of other display parameters e.g. brightness or contrast as e.g. LCD or OLED display modules are disclosed. This is performed by individual trimming of the display driver's gamma curve One alternative is that an end-user has access to a non-volatile memory and replaces the factory default settings of the gamma curve with individual settings. Another alternative is to load gamma curve parameters from the non-volatile memory to gamma control registers and perform tweaking of the gamma curve from these control registers on top of the factory default settings in the non-volatile memory.
AbstractList A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma adjustment or also adjustment of other display parameters e.g. brightness or contrast as e.g. LCD or OLED display modules are disclosed. This is performed by individual trimming of the display driver's gamma curve One alternative is that an end-user has access to a non-volatile memory and replaces the factory default settings of the gamma curve with individual settings. Another alternative is to load gamma curve parameters from the non-volatile memory to gamma control registers and perform tweaking of the gamma curve from these control registers on top of the factory default settings in the non-volatile memory.
Author Zehnich, Paul
Burkhardt, Helmut
Stellberger, Achim
Kronmuller, Frank
Author_xml – sequence: 1
  givenname: Helmut
  surname: Burkhardt
  fullname: Burkhardt, Helmut
– sequence: 2
  givenname: Achim
  surname: Stellberger
  fullname: Stellberger, Achim
– sequence: 3
  givenname: Paul
  surname: Zehnich
  fullname: Zehnich, Paul
– sequence: 4
  givenname: Frank
  surname: Kronmuller
  fullname: Kronmuller, Frank
BookMark eNrjYmDJy89L5WQwdU_MzU1USC4tKktVSM4vKkpNLsnMz1NIyy9SCPFTSMxLUQhxC1FIySwuyEmsVMjNTynNSS3mYWBNS8wpTuWF0twMCm6uIc4euqXFBYklqXklxfHpRYkgysDC0MTSyNTAmAglANhKLvs
ContentType Patent
CorporateAuthor Dialog Semiconductor GmbH
CorporateAuthor_xml – name: Dialog Semiconductor GmbH
DBID EFH
DatabaseName USPTO Issued Patents
DatabaseTitleList
Database_xml – sequence: 1
  dbid: EFH
  name: USPTO Issued Patents
  url: http://www.uspto.gov/patft/index.html
  sourceTypes: Open Access Repository
DeliveryMethod fulltext_linktorsrc
ExternalDocumentID 08149250
GroupedDBID EFH
ID FETCH-uspatents_grants_081492503
IEDL.DBID EFH
IngestDate Mon Mar 06 19:00:32 EST 2023
IsOpenAccess true
IsPeerReviewed false
IsScholarly false
Language English
LinkModel DirectLink
MergedId FETCHMERGED-uspatents_grants_081492503
OpenAccessLink https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8149250
ParticipantIDs uspatents_grants_08149250
PatentNumber 8149250
PublicationCentury 2000
PublicationDate 20120403
PublicationDateYYYYMMDD 2012-04-03
PublicationDate_xml – month: 04
  year: 2012
  text: 20120403
  day: 03
PublicationDecade 2010
PublicationYear 2012
References Kudo et al. (2002/0186230) 20021200
Date et al. (2003/0184568) 20031000
Tone (6404512) 20020600
Sakamaki et al. (2004/0150653) 20040800
Jeong (2004/0113924) 20040600
Medina et al. (6359389) 20020300
Ishimaru (6008788) 19991200
Yamazaki et al. (2002/0079484) 20020600
Yamano et al. (2004/0066363) 20040400
Liquid Crystal Displays, by Ernst Lueder, May 2001, Ed-1, John Wiley & Sons, retrieved from the internet on Jul. 28, 2005: http://www.wiley-vch.de/publish/en/book/bySubjectEE00/bySubSubjectEE35/0-47-490....
Yer et al. (6731259) 20040500
Sempel et al. (2004/0174388) 20040900
Lee (2003/0085859) 20030500
Naito et al. (2002/0075277) 20020600
Tabata et al. (5012272) 19910400
Nakao (6437716) 20020800
Izumi (2004/0246221) 20041200
Baum et al. (2006/0202929) 20060900
References_xml – year: 20020600
  ident: 2002/0075277
  contributor:
    fullname: Naito et al.
– year: 20020800
  ident: 6437716
  contributor:
    fullname: Nakao
– year: 20040400
  ident: 2004/0066363
  contributor:
    fullname: Yamano et al.
– year: 20040800
  ident: 2004/0150653
  contributor:
    fullname: Sakamaki et al.
– year: 19910400
  ident: 5012272
  contributor:
    fullname: Tabata et al.
– year: 20030500
  ident: 2003/0085859
  contributor:
    fullname: Lee
– year: 20020300
  ident: 6359389
  contributor:
    fullname: Medina et al.
– year: 20031000
  ident: 2003/0184568
  contributor:
    fullname: Date et al.
– year: 20040900
  ident: 2004/0174388
  contributor:
    fullname: Sempel et al.
– year: 20021200
  ident: 2002/0186230
  contributor:
    fullname: Kudo et al.
– year: 20040600
  ident: 2004/0113924
  contributor:
    fullname: Jeong
– year: 20041200
  ident: 2004/0246221
  contributor:
    fullname: Izumi
– year: 20040500
  ident: 6731259
  contributor:
    fullname: Yer et al.
– year: 19991200
  ident: 6008788
  contributor:
    fullname: Ishimaru
– year: 20020600
  ident: 6404512
  contributor:
    fullname: Tone
– year: 20020600
  ident: 2002/0079484
  contributor:
    fullname: Yamazaki et al.
– year: 20060900
  ident: 2006/0202929
  contributor:
    fullname: Baum et al.
Score 2.8484118
Snippet A circuit and methods eliminating production related luminance variations of electronic display applies to all display technologies that require gamma...
SourceID uspatents
SourceType Open Access Repository
Title Gamma curve correction for TN and TFT display modules
URI https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8149250
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LSwMxEB5qEdSTomJ9kYPXaNpN9nGWrotg6WGF3kq6SUTYF5tdxX_vJJXiRS85JDAJEzLfDHzzBeCuSFhoRJhQLhQOgZnRTagiajiGQiV4xI1rFH5ZhNkrf16J1QiyXS9Mhc-ItngWez_Ytm88uRLD-_bi6Vb82WkE1k594LMuG6mWyjzEUyezh8X7XswctWueZkdwgCYwZat7-ws00mPYX_rZExjp-hTEk6wqSYqh-9CkcJ9i-JYCglkjyRcEK3qSpzlR77Yt5RepGjWU2p4BSef5Y0Z3e6zfOsddWbOfswTnMMYaXl8AiRjTiUF3MKE4uiXWWk5VIYQSOkLwmMDkTzOX_6xdwSEi-MxTSYJrGPfdoG8QJfvNrXfBNybTcdg
link.rule.ids 230,309,786,808,891,64394
linkProvider USPTO
linkToPdf http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LT8MwDLamgXicQIAY45ED10C3Ju16HivlVfVQpN2qrkkQUl_qA8S_x8nQxAUuOSSSY9mKP1uyvwBcZ57lKO54lHGBi62mdOUIlyqGoVBw5jKlB4VfQid4ZY9LvhxAsJmFKfAZ0Rp1aW_6tu4q01yJ4X3teLomf9YcgaVmH_gs8yoVkVC3s4mm2cPifUtjrGbRX_jBPuyiEEzayq79BRv-AWxHZvcQBrI8An6fFkVKsr75kCTT32KYoQKCeSOJQ4I1PYn9mIj3ts7TL1JUos9lewzEX8TzgG7uSN4a3b2SWD_a2CcwxCpengJxLUt6Cg1iccHQMDMp04nIOBdcuggfIxj9Kebsn7Mr2Inu_OT5IXwawx7C-dT0ldjnMOyaXl4gZHarS2ONb-gvdNI
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=Gamma+curve+correction+for+TN+and+TFT+display+modules&rft.inventor=Burkhardt%2C+Helmut&rft.inventor=Stellberger%2C+Achim&rft.inventor=Zehnich%2C+Paul&rft.inventor=Kronmuller%2C+Frank&rft.number=8149250&rft.date=2012-04-03&rft.externalDBID=n%2Fa&rft.externalDocID=08149250