KR100820773B1 - 확산 시트, 이를 포함하는 백라이트 어셈블리 및 액정 표시장치 - Google Patents
확산 시트, 이를 포함하는 백라이트 어셈블리 및 액정 표시장치 Download PDFInfo
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- KR100820773B1 KR100820773B1 KR1020060078297A KR20060078297A KR100820773B1 KR 100820773 B1 KR100820773 B1 KR 100820773B1 KR 1020060078297 A KR1020060078297 A KR 1020060078297A KR 20060078297 A KR20060078297 A KR 20060078297A KR 100820773 B1 KR100820773 B1 KR 100820773B1
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- diffusion
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- liquid crystal
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0273—Diffusing elements; Afocal elements characterized by the use
- G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
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- 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
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- 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
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- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
Abstract
Description
Claims (12)
- 삭제
- 투명 기재; 및상기 투명 기재 상에 위치하며 그 상부면이 구면인 다수개의 확산 패턴을 포함하되,상기 확산 패턴의 배열에 있어 확산 패턴의 제 1 진행 방향 또는 확산 패턴의 제 2 진행 방향이 상기 기재의 장변과 소정의 바이어스 각도를 이루고,상기 제 1 진행 방향과 상기 장변이 이루는 상기 바이어스 각도(θ1)는 0°<θ1 ≤60°이며,상기 제 2 진행 방향과 상기 장변이 이루는 상기 바이어스 각도(θ2)는 60°≤θ2<90° 또는 90°<θ2≤120°인 확산 시트.
- 삭제
- 제 2 항에 있어서,상기 확산 패턴의 직경은 30 내지 80㎛인 확산 시트.
- 제 4 항에 있어서,상기 확산 패턴의 직경은 40 내지 60㎛인 확산 시트.
- 제 4 항에 있어서, 상기 확산 패턴은 서로 동일한 직경을 갖는 확산 시트.
- 제 4 항에 있어서,상기 확산 패턴의 높이는 상기 확산 패턴의 직경의 0% 초과하고 50% 이하에 해당하는 값을 갖는 확산 시트.
- 제 2 항에 있어서,상기 확산 패턴 사이의 간극은 0㎛ 초과하고 20㎛ 이하인 확산 시트.
- 제 8 항에 있어서,상기 확산 패턴 사이의 간극은 0㎛ 초과하고 5㎛ 이하인 확산 시트.
- 제 2 항에 있어서,상기 확산 패턴은 자외선 경화 수지 또는 열 경화 수지를 포함하는 확산 시트.
- 제 2 항 또는 제 10 항 중 어느 하나에 따른 확산 시트를 포함하는 백라이트 어셈블리.
- 제 2 항 또는 제 10 항 중 어느 하나에 따른 확산 시트를 포함하는 액정 표시 장치.
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KR1020060078297A KR100820773B1 (ko) | 2006-08-18 | 2006-08-18 | 확산 시트, 이를 포함하는 백라이트 어셈블리 및 액정 표시장치 |
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KR1020060078297A KR100820773B1 (ko) | 2006-08-18 | 2006-08-18 | 확산 시트, 이를 포함하는 백라이트 어셈블리 및 액정 표시장치 |
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KR20080016318A KR20080016318A (ko) | 2008-02-21 |
KR100820773B1 true KR100820773B1 (ko) | 2008-04-10 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010099184A (ko) * | 2001-09-10 | 2001-11-09 | 장희철 | 모아레 간섭을 이용한 입체광학시트, 그 제조방법,제조장치 및 시트를 이용한 노트 |
JP2003121609A (ja) * | 2001-10-11 | 2003-04-23 | Hitachi Ltd | 光学シートおよびこれを備えた表示装置 |
JP2004309801A (ja) | 2003-04-07 | 2004-11-04 | Keiwa Inc | 光学シート及びこれを用いたバックライトユニット |
KR20050064348A (ko) * | 2003-12-23 | 2005-06-29 | 엘지전자 주식회사 | 제어된 비구면 계수를 갖는 마이크로렌즈 배열 시트 및 그제조 방법 |
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- 2006-08-18 KR KR1020060078297A patent/KR100820773B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010099184A (ko) * | 2001-09-10 | 2001-11-09 | 장희철 | 모아레 간섭을 이용한 입체광학시트, 그 제조방법,제조장치 및 시트를 이용한 노트 |
JP2003121609A (ja) * | 2001-10-11 | 2003-04-23 | Hitachi Ltd | 光学シートおよびこれを備えた表示装置 |
JP2004309801A (ja) | 2003-04-07 | 2004-11-04 | Keiwa Inc | 光学シート及びこれを用いたバックライトユニット |
KR20050064348A (ko) * | 2003-12-23 | 2005-06-29 | 엘지전자 주식회사 | 제어된 비구면 계수를 갖는 마이크로렌즈 배열 시트 및 그제조 방법 |
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