WO2008143291A1 - Illumination device and display device using the same - Google Patents

Illumination device and display device using the same Download PDF

Info

Publication number
WO2008143291A1
WO2008143291A1 PCT/JP2008/059365 JP2008059365W WO2008143291A1 WO 2008143291 A1 WO2008143291 A1 WO 2008143291A1 JP 2008059365 W JP2008059365 W JP 2008059365W WO 2008143291 A1 WO2008143291 A1 WO 2008143291A1
Authority
WO
WIPO (PCT)
Prior art keywords
light source
color
turns
display device
during
Prior art date
Application number
PCT/JP2008/059365
Other languages
French (fr)
Japanese (ja)
Inventor
Keiji Hayashi
Original Assignee
Sharp Kabushiki Kaisha
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 Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2008143291A1 publication Critical patent/WO2008143291A1/en

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
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light
    • G02F1/133622—Colour sequential illumination
    • 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
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

Provided is a display device which can display a high-quality dynamic image and improve color purity. Also provided is an illumination device used in the display device. The display device includes: an illumination device (3) having a first light source (31G) for emitting a first color and a second light source (31RB) for emitting a second color as the complementary color of the first color; a gate driver (24) which successively selects respective scan lines (GL) at 0.5-frame cycle; a data driver (23) which writes a data signal into the first color pixel during the first half of one-frame period and writes a data signal into the second color pixel during the latter half of the one-frame period; and a switch circuit (26) which turns ON the first light source (31G) and turns OFF the second light source (31RB) during the first half of the one-frame period and turns ON the second light source (31RB) and turns OFF the first light source (31G) during the latter half of the period.
PCT/JP2008/059365 2007-05-22 2008-05-21 Illumination device and display device using the same WO2008143291A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007136030 2007-05-22
JP2007-136030 2007-05-22

Publications (1)

Publication Number Publication Date
WO2008143291A1 true WO2008143291A1 (en) 2008-11-27

Family

ID=40031985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/059365 WO2008143291A1 (en) 2007-05-22 2008-05-21 Illumination device and display device using the same

Country Status (1)

Country Link
WO (1) WO2008143291A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08286184A (en) * 1995-04-14 1996-11-01 Canon Inc Liquid crystal display device
JP2001351425A (en) * 2000-06-08 2001-12-21 Fujitsu Ltd Backlight device and liquid crystal display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08286184A (en) * 1995-04-14 1996-11-01 Canon Inc Liquid crystal display device
JP2001351425A (en) * 2000-06-08 2001-12-21 Fujitsu Ltd Backlight device and liquid crystal display device

Similar Documents

Publication Publication Date Title
WO2008146692A1 (en) Display device
WO2008123403A1 (en) Illuminator and display having same
TW200731184A (en) Method for driving active matrix type display device
EP2278798A3 (en) Multimedia player displaying 2 projection images
TW200643865A (en) Liquid crystal display device suitable for display of moving pictures
FR2889762B1 (en) ELECTROLUMINESCENT SCREEN
TW200717148A (en) Electrophoretic display device and method of driving same
EP1884912A3 (en) Light emitting display
WO2007001682A3 (en) Taut, torsional flexure and a compact drive for, and method of, scanning light using the flexure
TW200614126A (en) Liquid crystal display device and driving method thereof
WO2009044909A1 (en) Video display device and light source driving method thereof
WO2003023750A1 (en) El display panel, its driving method, and el display apparatus
TW200632489A (en) Liquid crystal display and driving method thereof
TW200721091A (en) Led driver and display device using the same
TW200705347A (en) Display panel
EP2317499A3 (en) Organic light emitting display and method of driving the same
WO2006124359A3 (en) Image projection screen with reduced speckle noise
TWI346919B (en) Flat display apparatus and picture quality controlling method based on panel defects
TW200633547A (en) Color image projection arrangement and method
TWI417849B (en) Field sequential display with overlapped multi-scan driving and method thereof
TW200735025A (en) Low color-shift liquid crystal display and its driving method
JP2009093167A5 (en)
TW200632841A (en) Driving system in a liquid crystal display
TW200632853A (en) Active matrix type display device
TW200746004A (en) Indicator device with multiple pixel and process to display images

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08753042

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08753042

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP