JP7471732B2 - ディスプレイ装置用部品およびそれを用いたディスプレイ装置 - Google Patents
ディスプレイ装置用部品およびそれを用いたディスプレイ装置 Download PDFInfo
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- JP7471732B2 JP7471732B2 JP2022562865A JP2022562865A JP7471732B2 JP 7471732 B2 JP7471732 B2 JP 7471732B2 JP 2022562865 A JP2022562865 A JP 2022562865A JP 2022562865 A JP2022562865 A JP 2022562865A JP 7471732 B2 JP7471732 B2 JP 7471732B2
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- 230000003287 optical effect Effects 0.000 claims description 112
- 238000000149 argon plasma sintering Methods 0.000 claims description 57
- 239000004973 liquid crystal related substance Substances 0.000 claims description 5
- 238000002834 transmittance Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 21
- 230000008859 change Effects 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
-
- 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
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
- G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
-
- 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
-
- 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
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Optical Elements Other Than Lenses (AREA)
- Display Devices Of Pinball Game Machines (AREA)
Description
[数1]
3≦第2方向に散乱した最大散乱角度/第1方向に散乱した最大散乱角度≦10。
[数1]
3≦第2方向に散乱した最大散乱角度/第1方向に散乱した最大散乱角度≦10
100’:ディスプレイ装置用部品
110:光出力部
130:光散乱部
150:光導光部
151:光ガイド
153:第1光学素子
153p:第1光学素子の回折格子パターン
155:第2光学素子
155p:第2光学素子の回折格子パターン
PB:入射光
TB:透過光
DB:回折光
Claims (11)
- 光を散乱させるための光散乱部と、前記散乱した光を所定の方向に拡張させるための光導光部とを含み、
前記光導光部は、
光を案内するための光ガイドと、
前記散乱した光が入力されて前記光ガイド上で案内できるように前記光ガイドの一面上または他面上に配置されて、前記入力された光を回折させるように構成された第1光学素子と、
前記光ガイドの一面上または他面上のいずれか1つに配置されて、前記第1光学素子から回折されて前記光ガイドを介して案内される光を受光し、受光された光が部分的に回折されて前記光ガイドの一面または他面から出力されるように構成された第2光学素子と、を含むものであり、
前記第1光学素子および前記第2光学素子はそれぞれ、ホログラフィック光学素子であると共に、第1方向に沿って高屈折部と低屈折部が互いに交互に配置される回折格子パターンが備えられるものであり、
前記回折格子パターンの長手方向は、前記第1方向に垂直な第2方向である、ディスプレイ装置用部品。 - 前記光散乱部は、前記第1方向に所定の角度をなすように光を散乱させるディフューザである、
請求項1に記載のディスプレイ装置用部品。 - 前記光散乱部は、前記第2方向に光を散乱させるディフューザである、
請求項1または2に記載のディスプレイ装置用部品。 - 前記光散乱部は、前記第1方向に0.5゜以上3゜以下の最大散乱角度で光を散乱させるものである、
請求項3に記載のディスプレイ装置用部品。 - 前記光散乱部は、前記第2方向に3゜以上20゜以下の最大散乱角度で光を散乱させるものである、
請求項3または4に記載のディスプレイ装置用部品。 - 前記光散乱部は、前記第1方向および前記第2方向に光を散乱させ、
前記第1方向に散乱した最大散乱角度と、前記第2方向に散乱した最大散乱角度とは、下記の数式1を満足させるものである、請求項3から5のいずれか一項に記載のディスプレイ装置用部品:
[数1]
3≦第2方向に散乱した最大散乱角度/第1方向に散乱した最大散乱角度≦10。 - 前記光散乱部の光透過率は、80%以上100%以下である、
請求項1から6のいずれか一項に記載のディスプレイ装置用部品。 - 前記第2光学素子は、前記第1方向に沿って前記回折格子パターンによる回折効率が高くなるように構成される、
請求項1から6のいずれか一項に記載のディスプレイ装置用部品。 - 請求項1~8のいずれか1項に記載のディスプレイ装置用部品と、
前記ディスプレイ装置用部品の光散乱部に光が照射されるように前記光を出力する光出力部とを含むものである、
ディスプレイ装置。 - 前記光出力部は、液晶ディスプレイパネルまたは有機発光ダイオードディスプレイパネルを含むものである、
請求項9に記載のディスプレイ装置。 - 前記光出力部から光が出力される部分の面積は、1cm2以上10cm2以下である、
請求項9または10に記載のディスプレイ装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR10-2020-0107290 | 2020-08-25 | ||
KR20200107290 | 2020-08-25 | ||
PCT/KR2021/010059 WO2022045609A1 (ko) | 2020-08-25 | 2021-08-02 | 디스플레이 장치용 부품 및 그를 이용한 디스플레이 장치 |
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JP2023521907A JP2023521907A (ja) | 2023-05-25 |
JP7471732B2 true JP7471732B2 (ja) | 2024-04-22 |
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JP2022562865A Active JP7471732B2 (ja) | 2020-08-25 | 2021-08-02 | ディスプレイ装置用部品およびそれを用いたディスプレイ装置 |
Country Status (7)
Country | Link |
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US (1) | US20230305213A1 (ja) |
EP (1) | EP4137883A4 (ja) |
JP (1) | JP7471732B2 (ja) |
KR (1) | KR20220026489A (ja) |
CN (1) | CN115398323A (ja) |
TW (1) | TWI786758B (ja) |
WO (1) | WO2022045609A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2015049278A (ja) | 2013-08-30 | 2015-03-16 | セイコーエプソン株式会社 | 光学デバイス及び画像表示装置 |
US20170299860A1 (en) | 2016-04-13 | 2017-10-19 | Richard Andrew Wall | Waveguide-Based Displays With Exit Pupil Expander |
JP2020046530A (ja) | 2018-09-19 | 2020-03-26 | 大日本印刷株式会社 | 射出瞳拡張素子 |
US10701326B1 (en) | 2019-07-10 | 2020-06-30 | Lightspace Technologies, SIA | Image display system, method of operating image display system and image projecting device |
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ATE254291T1 (de) * | 1998-04-02 | 2003-11-15 | Elop Electrooptics Ind Ltd | Optische holographische vorrichtungen |
TWI349120B (en) * | 2004-11-19 | 2011-09-21 | Hon Hai Prec Ind Co Ltd | Light guide plate and backlight module having same |
IL171820A (en) * | 2005-11-08 | 2014-04-30 | Lumus Ltd | A polarizing optical component for light coupling within a conductive substrate |
EP2225601A1 (en) * | 2007-12-18 | 2010-09-08 | BAE Systems PLC | Improvements in or relating to projection displays |
GB2464916B (en) * | 2008-10-21 | 2013-07-31 | Iti Scotland Ltd | Light Guides |
US9335604B2 (en) * | 2013-12-11 | 2016-05-10 | Milan Momcilo Popovich | Holographic waveguide display |
JP6439453B2 (ja) * | 2015-01-09 | 2018-12-19 | セイコーエプソン株式会社 | 画像表示装置、及び画像表示装置の製造方法 |
JP2020521170A (ja) * | 2017-05-19 | 2020-07-16 | シーリアル テクノロジーズ ソシエテ アノニムSeereal Technologies S.A. | 光ガイドを備える表示デバイス |
WO2019139440A1 (ko) * | 2018-01-12 | 2019-07-18 | 주식회사 엘지화학 | 회절 도광판 및 이를 포함하는 디스플레이 장치 |
KR102486664B1 (ko) * | 2018-03-14 | 2023-01-10 | 주식회사 엘지화학 | 회절 도광판 모듈 |
JP2019164239A (ja) * | 2018-03-19 | 2019-09-26 | 株式会社リコー | 表示装置及び機器 |
IL281242B2 (en) * | 2018-09-09 | 2024-06-01 | Lumus Ltd | Optical systems that include light-guiding optical elements with two-dimensional expansion |
KR20200107290A (ko) | 2019-03-07 | 2020-09-16 | 삼성중공업 주식회사 | 호스 및 그 지지체 |
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2021
- 2021-08-02 EP EP21861907.0A patent/EP4137883A4/en active Pending
- 2021-08-02 WO PCT/KR2021/010059 patent/WO2022045609A1/ko unknown
- 2021-08-02 JP JP2022562865A patent/JP7471732B2/ja active Active
- 2021-08-02 US US18/022,828 patent/US20230305213A1/en active Pending
- 2021-08-02 KR KR1020210101245A patent/KR20220026489A/ko active Search and Examination
- 2021-08-02 TW TW110128306A patent/TWI786758B/zh active
- 2021-08-02 CN CN202180026806.6A patent/CN115398323A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015049278A (ja) | 2013-08-30 | 2015-03-16 | セイコーエプソン株式会社 | 光学デバイス及び画像表示装置 |
US20170299860A1 (en) | 2016-04-13 | 2017-10-19 | Richard Andrew Wall | Waveguide-Based Displays With Exit Pupil Expander |
JP2020046530A (ja) | 2018-09-19 | 2020-03-26 | 大日本印刷株式会社 | 射出瞳拡張素子 |
US10701326B1 (en) | 2019-07-10 | 2020-06-30 | Lightspace Technologies, SIA | Image display system, method of operating image display system and image projecting device |
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Publication number | Publication date |
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EP4137883A4 (en) | 2023-11-08 |
JP2023521907A (ja) | 2023-05-25 |
US20230305213A1 (en) | 2023-09-28 |
TW202210910A (zh) | 2022-03-16 |
WO2022045609A1 (ko) | 2022-03-03 |
TWI786758B (zh) | 2022-12-11 |
CN115398323A (zh) | 2022-11-25 |
KR20220026489A (ko) | 2022-03-04 |
EP4137883A1 (en) | 2023-02-22 |
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