WO2009038187A1 - バックライト装置及びこれを用いた液晶表示装置 - Google Patents
バックライト装置及びこれを用いた液晶表示装置 Download PDFInfo
- Publication number
- WO2009038187A1 WO2009038187A1 PCT/JP2008/067007 JP2008067007W WO2009038187A1 WO 2009038187 A1 WO2009038187 A1 WO 2009038187A1 JP 2008067007 W JP2008067007 W JP 2008067007W WO 2009038187 A1 WO2009038187 A1 WO 2009038187A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- same
- crystal display
- display device
- backlight device
- Prior art date
Links
Classifications
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2008801075309A CN101849133B (zh) | 2007-09-20 | 2008-09-19 | 背光装置以及使用该背光装置的液晶显示装置 |
US12/677,839 US8724051B2 (en) | 2007-09-20 | 2008-09-19 | Backlight device, and liquid crystal display using the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-243261 | 2007-09-20 | ||
JP2007243261 | 2007-09-20 | ||
JP2008239735A JP4990861B2 (ja) | 2007-09-20 | 2008-09-18 | バックライト装置及びこれを用いた液晶表示装置 |
JP2008-239735 | 2008-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009038187A1 true WO2009038187A1 (ja) | 2009-03-26 |
Family
ID=40467996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/067007 WO2009038187A1 (ja) | 2007-09-20 | 2008-09-19 | バックライト装置及びこれを用いた液晶表示装置 |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009038187A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004071902A (ja) * | 2002-08-07 | 2004-03-04 | Sanken Electric Co Ltd | 半導体発光装置 |
JP2006237282A (ja) * | 2005-02-25 | 2006-09-07 | Sanyo Electric Co Ltd | 発光ダイオード光源 |
JP2007141834A (ja) * | 2005-11-14 | 2007-06-07 | Agilent Technol Inc | 白色光を発生するためのシステム及び方法 |
-
2008
- 2008-09-19 WO PCT/JP2008/067007 patent/WO2009038187A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004071902A (ja) * | 2002-08-07 | 2004-03-04 | Sanken Electric Co Ltd | 半導体発光装置 |
JP2006237282A (ja) * | 2005-02-25 | 2006-09-07 | Sanyo Electric Co Ltd | 発光ダイオード光源 |
JP2007141834A (ja) * | 2005-11-14 | 2007-06-07 | Agilent Technol Inc | 白色光を発生するためのシステム及び方法 |
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