JP2019102465A - バックライトユニット及びこれを含む表示装置 - Google Patents
バックライトユニット及びこれを含む表示装置 Download PDFInfo
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Classifications
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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
- G02F1/133608—Direct backlight including particular frames or supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00317—Production of lenses with markings or patterns
- B29D11/00326—Production of lenses with markings or patterns having particular surface properties, e.g. a micropattern
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0073—Optical laminates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/0074—Production of other optical elements not provided for in B29D11/00009- B29D11/0073
- B29D11/00798—Producing diffusers
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133322—Mechanical guidance or alignment of LCD panel support components
-
- 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
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (18)
- 光を照射する多数の光源と、
前記光源から照射された光の経路上に位置する光学シート層を含み、
前記光学シート層は、
前記光源から照射された光が入射される第1光学シートと、
前記第1光学シートの上部に位置し、前記第1光学シートから照射された光が入射される第2光学シートを含み、
前記第1光学シートと前記第2光学シートは、互いに接合しながら積層され、
前記第1光学シートと前記第2光学シートとの間の接合面には、
前記第1光学シートまたは前記第2光学シートの一面から内側に陥没した多数の第1溝に気孔が位置するバックライトユニット。 - 前記光学シート層は、
前記第1光学シートの下面、または前記第2光学シートの上面に接合しながら積層される第3光学シートをさらに含む請求項1に記載のバックライトユニット。 - 前記光学シート層は、
前記第2光学シートの上面に接合しながら積層される第3光学シートをさらに含み、
前記第2光学シートと前記第3光学シートとの間の接合面には、
前記第2光学シートまたは前記第3光学シートの一面から内側に陥没した多数の第2溝に気孔が位置する請求項1に記載のバックライトユニット。 - 前記多数の第1溝は、均一な間隔で設けられた請求項1に記載のバックライトユニット。
- 前記多数の第1溝と前記多数の第2溝は、それぞれ均一な間隔で設けられ、
前記多数の第1溝の間の間隔と前記多数の第2溝の間の間隔が互いに異なる請求項3に記載のバックライトユニット。 - 前記多数の第1溝の間の間隔は、前記多数の第2溝の間の間隔よりも相対的に大きい請求項5に記載のバックライトユニット。
- 前記多数の第1溝の深さと前記多数の第2溝の深さが互いに異なる請求項3に記載のバックライトユニット。
- 前記多数の第1溝の深さは、前記多数の第2溝の深さよりも相対的に大きい請求項7に記載のバックライトユニット。
- 前記多数の第1溝と前記多数の第2溝は、互いに平行しながらずれるように配列される請求項3に記載のバックライトユニット。
- 前記多数の第1溝のそれぞれの溝の間と前記多数の第2溝のそれぞれの溝の間には、水平面がある請求項3に記載のバックライトユニット。
- 前記多数の第1溝と前記多数の第2溝上に接着物質層が位置するが、
前記多数の第1溝の間の水平面と前記多数の第2溝の間の水平面に位置する接着物質層の厚さは、前記多数の第1溝と前記多数の第2溝に位置する接着物質層の厚さよりも相対的に厚い請求項10に記載のバックライトユニット。 - 前記光学シート層の上部に位置し、透明性を有するガラス材質からなった拡散板と、
前記拡散板の上部に位置する輝度向上フィルムをさらに含み、
前記拡散板の下面は、前記光学シート層の上面に接合された請求項1に記載のバックライトユニット。 - 前記光学シート層の上面と下面のうち少なくとも一つの一面に多数の光拡散粒子が含まれた請求項1に記載のバックライトユニット。
- カバーボトムと、
前記カバーボトム上に位置し、光を照射する多数の光源と、
前記光源の上部に位置する光学シート層と、
前記光学シート層の上部に位置する表示パネルと、
前記カバーボトムの外側に位置し、前記光学シート層の下部と前記表示パネルの下部を支持するガイドパネルと、を含み、
前記光学シート層は、
前記光源から照射された光が入射される第1光学シートと、
前記第1光学シートの上部に位置し、前記第1光学シートから照射された光が入射される第2光学シートを含み、
前記第1光学シートと前記第2光学シートは、互いに接合しながら積層され、
前記第1光学シートと前記第2光学シートとの間の接合面には、
前記第1光学シートまたは前記第2光学シートの一面から内側に陥没した多数の第1溝に気孔が位置する表示装置。 - 前記光学シート層は、
前記第2光学シートの上面に接合しながら積層される第3光学シートをさらに含み、
前記第2光学シートと前記第3光学シートとの間の接合面には、
前記第2光学シートまたは前記第3光学シートの一面から内側に陥没した多数の第2溝に気孔が位置する請求項14に記載の表示装置。 - 前記多数の第1溝と前記多数の第2溝は、それぞれ均一な間隔で設けられた請求項15に記載の表示装置。
- 前記光学シート層の上部に位置し、透明性を有するガラス材質からなった拡散板と、
前記拡散板の上部に位置する輝度向上フィルムをさらに含み、
前記拡散板の下面は、前記光学シート層の上面に接合された請求項15に記載の表示装置。 - 前記光学シート層の上面と下面のうち少なくとも一つの一面に多数の光拡散粒子が含まれた請求項17に記載の表示装置。
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US7446827B2 (en) * | 2004-10-15 | 2008-11-04 | 3M Innovative Properties Company | Direct-lit liquid crystal displays with laminated diffuser plates |
JP2007157451A (ja) | 2005-12-02 | 2007-06-21 | Sharp Corp | 拡散板支持部材、バックライト装置、及び表示装置 |
US20070203267A1 (en) | 2006-02-28 | 2007-08-30 | 3M Innovative Properties Company | Optical display with fluted optical plate |
KR100867919B1 (ko) * | 2008-02-29 | 2008-11-10 | 주식회사 엘엠에스 | 광학소자, 이를 포함하는 백라이트 유닛 및 액정표시장치 |
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JP6499269B2 (ja) | 2015-02-27 | 2019-04-10 | シャープ株式会社 | 積層型光学部材、照明装置、表示装置、及びテレビ受信装置 |
JP6471226B2 (ja) * | 2015-04-22 | 2019-02-13 | 堺ディスプレイプロダクト株式会社 | 光源装置及び表示装置 |
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