WO2010117238A3 - Image display apparatus capable of controlling viewing angle - Google Patents
Image display apparatus capable of controlling viewing angle Download PDFInfo
- Publication number
- WO2010117238A3 WO2010117238A3 PCT/KR2010/002203 KR2010002203W WO2010117238A3 WO 2010117238 A3 WO2010117238 A3 WO 2010117238A3 KR 2010002203 W KR2010002203 W KR 2010002203W WO 2010117238 A3 WO2010117238 A3 WO 2010117238A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- backlight unit
- image display
- light
- viewing angle
- display apparatus
- 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
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
-
- 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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- 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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- 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
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention relates to an image display apparatus capable of controlling a viewing angle. The image display apparatus comprises a 1st backlight unit, a 2nd backlight unit, a light path limiting plate, and an image display panel. The 1st backlight unit is formed to selectively emit light, and the 2nd backlight unit is arranged on the 1st backlight unit and formed to selectively emit light. The light path limiting plate is arranged between the 1st backlight unit and the 2nd backlight unit so that the light emitted from the 1st backlight unit passes therethrough, and comprises a plurality of slots for limiting the path of the incoming light to reduce diffusion of the light, which is emitted and inputted from the 1st backlight unit. The image display panel is arranged on the 2nd backlight unit to display images so that the light emitted from the 1st backlight unit and the 2nd backlight unit passes therethrough. Since the two backlight units are vertically arrayed and the light path limiting plate formed with a plurality of slots to limit the light diffusion path is included, a light diffusion spreading angle region which passes through the image display panel, can be adjusted and as a result a viewing angle is controlled. Therefore, an image display apparatus with a controllable viewing angle is implemented through a simple structure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090031077A KR20100112679A (en) | 2009-04-10 | 2009-04-10 | Image display device capable of controlling viewing angle |
KR10-2009-0031077 | 2009-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010117238A2 WO2010117238A2 (en) | 2010-10-14 |
WO2010117238A3 true WO2010117238A3 (en) | 2011-01-20 |
Family
ID=42936742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2010/002203 WO2010117238A2 (en) | 2009-04-10 | 2010-04-09 | Image display apparatus capable of controlling viewing angle |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR20100112679A (en) |
WO (1) | WO2010117238A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20160030820A (en) * | 2014-09-11 | 2016-03-21 | 엘지디스플레이 주식회사 | Backlight unit and image display device using the same |
DE102021204507B3 (en) * | 2021-05-05 | 2022-09-29 | Continental Automotive Technologies GmbH | Assembly for a backlight of a display and display with a backlight with such an assembly |
KR102506070B1 (en) * | 2022-09-27 | 2023-03-06 | 주식회사 탑런토탈솔루션 | Backlight unit for display with viewing angle control and method for manufacturing the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1097199A (en) * | 1996-09-20 | 1998-04-14 | Sharp Corp | Diffused light transmission plate, source of backlight, and liquid crystal display device |
JP2006235288A (en) * | 2005-02-25 | 2006-09-07 | Casio Comput Co Ltd | Display device, and backlight used therefor |
JP2007066555A (en) * | 2005-08-29 | 2007-03-15 | Casio Comput Co Ltd | Surface light source and liquid crystal display device |
JP2008098037A (en) * | 2006-10-13 | 2008-04-24 | Mitsubishi Electric Corp | Planar light source device, display device equipped with planar light source device, and lighting method of planar light source device |
-
2009
- 2009-04-10 KR KR1020090031077A patent/KR20100112679A/en not_active Application Discontinuation
-
2010
- 2010-04-09 WO PCT/KR2010/002203 patent/WO2010117238A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1097199A (en) * | 1996-09-20 | 1998-04-14 | Sharp Corp | Diffused light transmission plate, source of backlight, and liquid crystal display device |
JP2006235288A (en) * | 2005-02-25 | 2006-09-07 | Casio Comput Co Ltd | Display device, and backlight used therefor |
JP2007066555A (en) * | 2005-08-29 | 2007-03-15 | Casio Comput Co Ltd | Surface light source and liquid crystal display device |
JP2008098037A (en) * | 2006-10-13 | 2008-04-24 | Mitsubishi Electric Corp | Planar light source device, display device equipped with planar light source device, and lighting method of planar light source device |
Also Published As
Publication number | Publication date |
---|---|
WO2010117238A2 (en) | 2010-10-14 |
KR20100112679A (en) | 2010-10-20 |
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