WO2009028675A1 - Image display and image display control method - Google Patents

Image display and image display control method Download PDF

Info

Publication number
WO2009028675A1
WO2009028675A1 PCT/JP2008/065566 JP2008065566W WO2009028675A1 WO 2009028675 A1 WO2009028675 A1 WO 2009028675A1 JP 2008065566 W JP2008065566 W JP 2008065566W WO 2009028675 A1 WO2009028675 A1 WO 2009028675A1
Authority
WO
WIPO (PCT)
Prior art keywords
value
image display
pixel circuit
unit
measured value
Prior art date
Application number
PCT/JP2008/065566
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshinao Kobayashi
Original Assignee
Kyocera Corporation
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 Kyocera Corporation filed Critical Kyocera Corporation
Publication of WO2009028675A1 publication Critical patent/WO2009028675A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • H04N9/69—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • 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
    • 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
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A technique enabling easy generation of a γ-conversion rule. An image display comprises a display unit having pixel circuits including light-emitting elements and adapted for displaying an image in response to supply of a display image signal corresponding to each pixel circuit to the pixel circuits, a converting unit for γ-converting the input image signal corresponding to each pixel circuit according to a table and generating a display image signal, and a first setting unit for setting a target value of a parameter relating to the drive of a pixel circuit according to a specific input gray-scale value. The image display further comprises an acquiring unit for acquiring a measured value of the parameter while the light-emitting element in the pixel circuit corresponding to the specific input gray-scale value is made to emit light according to the output gray-scale value corresponding to the specific input gray-scale value and a second setting unit which maintains the table if the measured value is within a predetermined value range with respect to the target value and adjusts the table so that the measured value and the target value may fulfill a predetermined relation if the measured value is not within the predetermined value range.
PCT/JP2008/065566 2007-08-31 2008-08-29 Image display and image display control method WO2009028675A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-225418 2007-08-31
JP2007225418 2007-08-31

Publications (1)

Publication Number Publication Date
WO2009028675A1 true WO2009028675A1 (en) 2009-03-05

Family

ID=40387385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/065566 WO2009028675A1 (en) 2007-08-31 2008-08-29 Image display and image display control method

Country Status (1)

Country Link
WO (1) WO2009028675A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013114256A (en) * 2011-11-25 2013-06-10 Jaeyeol Park Correction system of display device using transfer function and method for correcting the same
KR20160016232A (en) 2014-08-04 2016-02-15 정태보 Setting System of Gamma Of Display Device And Setting Method Thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001350442A (en) * 1999-10-04 2001-12-21 Matsushita Electric Ind Co Ltd Driving method for display panel, luminance correcting device and driving device for display panel
JP2005091420A (en) * 2003-09-12 2005-04-07 Sony Corp Display device and control method therefor
JP2007065012A (en) * 2005-08-29 2007-03-15 Nec Viewtechnology Ltd Projection type display device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001350442A (en) * 1999-10-04 2001-12-21 Matsushita Electric Ind Co Ltd Driving method for display panel, luminance correcting device and driving device for display panel
JP2005091420A (en) * 2003-09-12 2005-04-07 Sony Corp Display device and control method therefor
JP2007065012A (en) * 2005-08-29 2007-03-15 Nec Viewtechnology Ltd Projection type display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013114256A (en) * 2011-11-25 2013-06-10 Jaeyeol Park Correction system of display device using transfer function and method for correcting the same
US8711136B2 (en) 2011-11-25 2014-04-29 Taebo Jung System and method for calibrating display device using transfer functions
KR20160016232A (en) 2014-08-04 2016-02-15 정태보 Setting System of Gamma Of Display Device And Setting Method Thereof

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