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WO2008114521A1 - Liquid crystal display device, driving method for liquid crystal display device, and television receiver - Google Patents

Liquid crystal display device, driving method for liquid crystal display device, and television receiver Download PDF

Info

Publication number
WO2008114521A1
WO2008114521A1 PCT/JP2008/050444 JP2008050444W WO2008114521A1 WO 2008114521 A1 WO2008114521 A1 WO 2008114521A1 JP 2008050444 W JP2008050444 W JP 2008050444W WO 2008114521 A1 WO2008114521 A1 WO 2008114521A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
display device
crystal display
gray scale
panels
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.)
Ceased
Application number
PCT/JP2008/050444
Other languages
French (fr)
Japanese (ja)
Inventor
Mitsuaki Hirata
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Publication of WO2008114521A1 publication Critical patent/WO2008114521A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G09G3/34—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
    • G09G3/36—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 using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

A liquid crystal display device is provided with two liquid crystal panels (first and second panels) for displaying images in accordance with video source signals and a plurality of polarizers (A, B, C) (polarizing light absorption layers), wherein the panels and the polarizers are laid to overlap each other and the polarizers are held between the liquid crystal panels to set a cross-Nicol relation. With respect to gray scale values of image data to display an image on the second panel, the liquid crystal display device is further provided with a gray scale value converting unit (422) that converts the gray scale values, so that major portions of all bit numbers to express the gray scale values are allocated to the image data that belong to a low gray scale region.
PCT/JP2008/050444 2007-03-20 2008-01-16 Liquid crystal display device, driving method for liquid crystal display device, and television receiver Ceased WO2008114521A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007073655 2007-03-20
JP2007-073655 2007-03-20

Publications (1)

Publication Number Publication Date
WO2008114521A1 true WO2008114521A1 (en) 2008-09-25

Family

ID=39765639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050444 Ceased WO2008114521A1 (en) 2007-03-20 2008-01-16 Liquid crystal display device, driving method for liquid crystal display device, and television receiver

Country Status (1)

Country Link
WO (1) WO2008114521A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016063675A1 (en) * 2014-10-22 2016-04-28 ソニー株式会社 Image processing device and image processing method
JP2016118689A (en) * 2014-12-22 2016-06-30 エルジー ディスプレイ カンパニー リミテッド Image display method and image display device
CN107863075A (en) * 2017-11-03 2018-03-30 惠科股份有限公司 Driving method and driving device of display device
JP2019008326A (en) * 2018-10-03 2019-01-17 エルジー ディスプレイ カンパニー リミテッド Image display method and image display apparatus
US10242635B2 (en) 2014-12-22 2019-03-26 Lg Display Co., Ltd. Image display method and image display device
WO2019155760A1 (en) * 2018-02-07 2019-08-15 ソニー株式会社 Image processing device, display device, and image processing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077868A (en) * 2003-09-02 2005-03-24 Seiko Epson Corp projector
WO2006082883A1 (en) * 2005-02-03 2006-08-10 Nikon Corporation Display device, electronic device and camera
WO2007000851A1 (en) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Illumination device for display device, display device, and television receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005077868A (en) * 2003-09-02 2005-03-24 Seiko Epson Corp projector
WO2006082883A1 (en) * 2005-02-03 2006-08-10 Nikon Corporation Display device, electronic device and camera
WO2007000851A1 (en) * 2005-06-28 2007-01-04 Sharp Kabushiki Kaisha Illumination device for display device, display device, and television receiver

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016063675A1 (en) * 2014-10-22 2016-04-28 ソニー株式会社 Image processing device and image processing method
JP2016118689A (en) * 2014-12-22 2016-06-30 エルジー ディスプレイ カンパニー リミテッド Image display method and image display device
US10242635B2 (en) 2014-12-22 2019-03-26 Lg Display Co., Ltd. Image display method and image display device
CN107863075A (en) * 2017-11-03 2018-03-30 惠科股份有限公司 Driving method and driving device of display device
US11195445B2 (en) 2017-11-03 2021-12-07 HKC Corporation Limited Driving apparatus and driving method of a display apparatus
WO2019085346A1 (en) * 2017-11-03 2019-05-09 惠科股份有限公司 Method and device for driving display device
WO2019155760A1 (en) * 2018-02-07 2019-08-15 ソニー株式会社 Image processing device, display device, and image processing method
CN111684514A (en) * 2018-02-07 2020-09-18 索尼公司 Image processing device, display device, and image processing method
JPWO2019155760A1 (en) * 2018-02-07 2021-02-25 ソニー株式会社 Image processing device, display device, image processing method
US11217189B2 (en) 2018-02-07 2022-01-04 Sony Corporation Image processing device, display apparatus, and image processing method for display panel including front and rear liquid crystal cells
CN111684514B (en) * 2018-02-07 2022-07-22 索尼公司 Image processing apparatus, display apparatus, and image processing method
US11670250B2 (en) 2018-02-07 2023-06-06 Sony Group Corporation Image processing device, display apparatus, and image processing method for converting color image signal
JP7302484B2 (en) 2018-02-07 2023-07-04 ソニーグループ株式会社 Image processing device, display device, image processing method
JP2019008326A (en) * 2018-10-03 2019-01-17 エルジー ディスプレイ カンパニー リミテッド Image display method and image display apparatus

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