JP6889816B1 - 面状照明装置 - Google Patents
面状照明装置 Download PDFInfo
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- JP6889816B1 JP6889816B1 JP2021510997A JP2021510997A JP6889816B1 JP 6889816 B1 JP6889816 B1 JP 6889816B1 JP 2021510997 A JP2021510997 A JP 2021510997A JP 2021510997 A JP2021510997 A JP 2021510997A JP 6889816 B1 JP6889816 B1 JP 6889816B1
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- optical sheet
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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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133606—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
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1607—Arrangements to support accessories mechanically attached to the display housing
- G06F1/1609—Arrangements to support accessories mechanically attached to the display housing to support filters or lenses
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
Abstract
Description
Claims (10)
- 入光側面から入光する導光板と、
前記導光板の入光側面に光を照射する光源と、
前記導光板の出射面側を覆うトップフレームと、
前記導光板の出射面側に配置され、前記トップフレームの額縁部の裏側に端部が固定部材を介して接着されて固定される複数の光学シートと、
を備える、
面状照明装置。 - 前記複数の光学シートの端部は、前記トップフレームの額縁部の裏側に、平面状の前記固定部材のみを介して固定される、
請求項1に記載の面状照明装置。 - 前記複数の光学シートの端部は、前記入光側面を覆う前記額縁部に固定される、
請求項1または2に記載の面状照明装置。 - 前記トップフレームの線膨張係数は、前記複数の光学シートのいずれの線膨張係数よりも小さい、
請求項1〜3のいずれか一つに記載の面状照明装置。 - 前記複数の光学シートのうち、線膨張係数が最も大きい第1の光学シートは、前記額縁部が延伸する方向の中央部で前記トップフレームに直接または間接に固定され、
線膨張係数が次に大きい第2の光学シートは、前記中央部の両外側または一方の外側において前記トップフレームに直接または間接に固定される、
請求項1〜4のいずれか一つに記載の面状照明装置。 - 前記第1の光学シートは、前記中央部でのみ固定され、前記第2の光学シートは、前記両外側のみまたは一方の外側のみで固定される、
請求項5に記載の面状照明装置。 - 前記第1の光学シートは、前記トップフレームの額縁部の裏側に端部が直接に固定される、
請求項5または6に記載の面状照明装置。 - 前記第2の光学シート、および、前記第2の光学シートよりも線膨張係数が小さい第3の光学シートは、前記トップフレームの前記額縁部が延伸する方向の両端部に固定される、
請求項7に記載の面状照明装置。 - 前記第2の光学シートよりも線膨張係数が小さい第3の光学シートは、前記トップフレームの前記額縁部が延伸する方向の両端部に固定され、
前記第2の光学シートは、前記第3の光学シートの固定部よりも前記額縁部が延伸する方向の内側に固定される、
請求項7に記載の面状照明装置。 - 前記第2の光学シートよりも線膨張係数が小さい第3の光学シートは、前記額縁部が延伸する方向の両端部に固定され、
前記第1の光学シートは、前記第3の光学シートの前記額縁部が延伸する方向の中央部に固定される、
請求項5または6に記載の面状照明装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2019152787 | 2019-08-23 | ||
JP2019152787 | 2019-08-23 | ||
PCT/JP2020/022104 WO2021039008A1 (ja) | 2019-08-23 | 2020-06-04 | 面状照明装置 |
Publications (2)
Publication Number | Publication Date |
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JP6889816B1 true JP6889816B1 (ja) | 2021-06-18 |
JPWO2021039008A1 JPWO2021039008A1 (ja) | 2021-09-13 |
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JP2021510997A Active JP6889816B1 (ja) | 2019-08-23 | 2020-06-04 | 面状照明装置 |
Country Status (4)
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US (1) | US11829029B2 (ja) |
JP (1) | JP6889816B1 (ja) |
CN (1) | CN113950641A (ja) |
WO (1) | WO2021039008A1 (ja) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2018043460A1 (ja) * | 2016-09-05 | 2018-03-08 | シャープ株式会社 | 照明装置及び表示装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4172768B2 (ja) | 2003-02-27 | 2008-10-29 | オプトレックス株式会社 | 液晶表示パネル用照明装置 |
US9621838B2 (en) * | 2011-10-25 | 2017-04-11 | Funai Electric Co., Ltd. | Display device and television apparatus |
WO2014017389A1 (ja) * | 2012-07-26 | 2014-01-30 | シャープ株式会社 | 表示装置、及びテレビ受信装置 |
WO2018051855A1 (ja) * | 2016-09-13 | 2018-03-22 | シャープ株式会社 | 光学部材、照明装置及び表示装置 |
EP3605211A4 (en) * | 2017-03-30 | 2020-02-12 | Panasonic Intellectual Property Management Co., Ltd. | DISPLAY DEVICE |
JP2019029081A (ja) | 2017-07-26 | 2019-02-21 | ミネベアミツミ株式会社 | 面状照明装置 |
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2020
- 2020-06-04 WO PCT/JP2020/022104 patent/WO2021039008A1/ja active Application Filing
- 2020-06-04 CN CN202080043272.3A patent/CN113950641A/zh active Pending
- 2020-06-04 US US17/596,855 patent/US11829029B2/en active Active
- 2020-06-04 JP JP2021510997A patent/JP6889816B1/ja active Active
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WO2018043460A1 (ja) * | 2016-09-05 | 2018-03-08 | シャープ株式会社 | 照明装置及び表示装置 |
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Publication number | Publication date |
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JPWO2021039008A1 (ja) | 2021-09-13 |
US20220317515A1 (en) | 2022-10-06 |
US11829029B2 (en) | 2023-11-28 |
WO2021039008A1 (ja) | 2021-03-04 |
CN113950641A (zh) | 2022-01-18 |
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