WO2022180985A1 - 調光装置 - Google Patents
調光装置 Download PDFInfo
- Publication number
- WO2022180985A1 WO2022180985A1 PCT/JP2021/045509 JP2021045509W WO2022180985A1 WO 2022180985 A1 WO2022180985 A1 WO 2022180985A1 JP 2021045509 W JP2021045509 W JP 2021045509W WO 2022180985 A1 WO2022180985 A1 WO 2022180985A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- liquid crystal
- crystal cell
- light control
- drive electrodes
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 115
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 105
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 83
- 238000007689 inspection Methods 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims description 43
- 239000002184 metal Substances 0.000 claims description 43
- 230000010287 polarization Effects 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims description 9
- 238000001615 p wave Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000004048 modification Effects 0.000 description 12
- 238000012986 modification Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 239000010949 copper Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Images
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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
-
- 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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136254—Checking; Testing
-
- 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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
Definitions
- drive electrodes are provided on two substrates sandwiching a liquid crystal layer, and a drive voltage is applied between the electrodes provided on each of the two substrates, thereby aligning the liquid crystal molecules. controlled. At least one of the two substrates is provided with a terminal for applying a driving voltage to the electrodes.
- the dimming function is lost and the yield rate is lowered. Therefore, it is desired to improve the yield rate in the production of liquid crystal cells.
- a light control device is a light control device in which a plurality of liquid crystal cells having a light control region that polarizes light emitted from a light source are stacked in a light irradiation direction, wherein the liquid crystal cell is a liquid crystal layer sandwiched between a first substrate having a plurality of first drive electrodes extending in a first direction in the dimming region and the first substrate, wherein the first direction in the dimming region is a second substrate having a plurality of second drive electrodes extending in different second directions, wherein the first substrate includes a plurality of first metal wirings that supply drive voltages to the plurality of first drive electrodes, respectively.
- FIG. 1 is a perspective view showing an example of a lighting fixture provided with a light control device according to an embodiment.
- FIG. 2 is a schematic plan view of the first substrate viewed from the Dz direction.
- FIG. 3 is a schematic plan view of the second substrate viewed from the Dz direction.
- FIG. 4 is a perspective view of a liquid crystal cell in which the first substrate and the second substrate are stacked in the Dz direction.
- FIG. 5 is a cross-sectional view taken along line A-A' shown in FIG.
- FIG. 6A is a diagram showing the rubbing direction of the alignment film of the first substrate.
- FIG. 6B is a diagram showing the rubbing direction of the alignment film of the second substrate.
- FIG. 6A is a diagram showing the rubbing direction of the alignment film of the first substrate.
- FIG. 6B is a diagram showing the rubbing direction of the alignment film of the second substrate.
- the light control device 1 of the present embodiment includes a first liquid crystal cell 2 and a second liquid crystal cell 3.
- the liquid crystal layer 8 modulates light passing through the liquid crystal layer 8 according to the state of the electric field.
- the liquid crystal layer 8 may employ a horizontal electric field mode such as FFS (fringe field switching), which is a form of IPS (in-plane switching), or may use a vertical electric field mode.
- FFS frequency field switching
- IPS in-plane switching
- liquid crystals of various modes such as TN (Twisted Nematic), VA (Vertical Alignment), and ECB (Electrically Controlled Birefringence) may be used. is not limited by
- the first drive electrodes 10a, 10b and the second drive electrodes 13a, 13b are translucent electrodes made of a translucent conductive material (translucent conductive oxide) such as ITO (Indium Tin Oxide).
- the first substrate 5 and the second substrate 6 are translucent substrates such as glass or resin.
- the metal wiring 11 and the metal wiring 14 are made of at least one metal material selected from aluminum (Al), copper (Cu), silver (Ag), molybdenum (Mo), and alloys thereof. Also, the metal wiring 11 and the metal wiring 14 may be a laminated body in which one or more of these metal materials are used and a plurality of layers are laminated. At least one metal material of aluminum (Al), copper (Cu), silver (Ag), molybdenum (Mo), or alloys thereof has a lower resistance than translucent conductive oxides such as ITO.
- FIG. 6A is a diagram showing the rubbing direction of the alignment film of the first substrate.
- FIG. 6B is a diagram showing the rubbing direction of the alignment film of the second substrate.
- the first substrate 5 and the second substrate 6 do not overlap in the Dz direction. are provided.
- the FPC can be connected to the first liquid crystal cell 2 and the second liquid crystal cell 3 from different directions, improving workability.
- FIG. 8A is a schematic diagram of the cross-sectional structure of the connection terminal.
- FIG. 8B is a schematic diagram of a cross-sectional structure of an inspection terminal.
- connection terminals of the connection terminal portions 16a and 16b and the inspection terminals of the inspection terminal portion 20 are made of, for example, a metal material provided in the wiring layer of the first substrate 5. 21 is covered with a translucent conductive material 22 having corrosion resistance such as ITO similar to the drive electrode 10 . As a result, the contact resistance between the FPC and the probes of the short-circuit inspection jig can be suppressed, and stable connection can be achieved.
- test terminal portions 20 are provided on the first substrates of the first liquid crystal cell 2 and the second liquid crystal cell 3 .
- a configuration in which the inspection terminal portion 20 is provided on the second substrate of the two-liquid crystal cell 3 may be employed.
- the inspection terminal portion 20 may be provided on both the first substrate and the second substrate of the first liquid crystal cell 2 and the second liquid crystal cell 3 .
- the inspection terminal section 20 having a larger footprint than the connection terminal section 16 (16a, 16b) for connecting to the FPC is provided.
- the short-circuit inspection jig can be stably connected, and the yield rate in manufacturing liquid crystal cells can be improved.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
Abstract
Description
図9は、実施形態の変形例1に係る調光装置の第1基板と第2基板とをDz方向に重ねた液晶セルの透視図である。
図10は、実施形態の変形例2に係る調光装置の第1基板と第2基板とをDz方向に重ねた液晶セルの透視図である。
図12は、実施形態の変形例3に係る調光装置の第1基板と第2基板とをDz方向に重ねた液晶セルの透視図である。
2 第1液晶セル
3 第2液晶セル
4 光源
5a,5b,5c,5d 第1基板
6 第2基板
7 封止材
8 液晶層
9 基材
10a,10b 第1駆動電極
11b,11c 第1金属配線
11a,11d 第2金属配線
12 基材
13a,13b 第2駆動電極
14a,14b 金属配線
15a,15b 導通部
16,16a,16b 接続端子部
17 液晶分子
18 配向膜
19 配向膜
20 検査用端子部
21 金属材料
22 透光性導電材料
23 ジャンパ部
24 絶縁層
25 コンタクトホール
AA 調光領域
GA 周辺領域
Claims (4)
- 光源から照射される光を偏光する調光領域を有する複数の液晶セルが光の照射方向に積層された調光装置であって、
前記液晶セルは、
前記調光領域において第1方向に延在する複数の第1駆動電極を有する第1基板と、
前記第1基板との間に液晶層を挟み、前記調光領域において前記第1方向とは異なる第2方向に延在する複数の第2駆動電極を有する第2基板と、
を備え、
前記第1基板は、
複数の前記第1駆動電極にそれぞれ駆動電圧を供給する複数の第1金属配線と、
前記第2基板との間に設けられた導通部を介して、複数の前記第2駆動電極にそれぞれ駆動電圧を供給する複数の第2金属配線と、
複数の前記第1金属配線及び複数の前記第2金属配線にそれぞれ駆動電極を供給する複数の接続端子と、
前記接続端子よりもフットプリントが大きく、複数の前記第1金属配線及び複数の前記第2金属配線に対応してそれぞれ設けられる複数の検査用端子と、
を備える、
調光装置。 - p波偏光用の液晶セルとs波偏光用の液晶セルとを積層した組み合わせを複数有する、
請求項1に記載の調光装置。 - 複数の前記検査用端子は、前記第1基板の配線層に設けられた金属材料が透光性導電材料に覆われて構成されている、
請求項1又は2に記載の調光装置。 - 前記調光領域を除く領域において、前記第1基板の配線層を覆う絶縁層が設けられ、当該絶縁層に設けられたコンタクトホールを介して、前記金属材料と透光性導電材料とが電気的に接続される、
請求項3に記載の調光装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2023502085A JPWO2022180985A1 (ja) | 2021-02-25 | 2021-12-10 | |
CN202180094393.5A CN117015735A (zh) | 2021-02-25 | 2021-12-10 | 调光装置 |
US18/230,257 US20230375887A1 (en) | 2021-02-25 | 2023-08-04 | Light adjustment device |
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JP2021-029044 | 2021-02-25 | ||
JP2021029044 | 2021-02-25 |
Related Child Applications (1)
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US18/230,257 Continuation US20230375887A1 (en) | 2021-02-25 | 2023-08-04 | Light adjustment device |
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Publication Number | Publication Date |
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WO2022180985A1 true WO2022180985A1 (ja) | 2022-09-01 |
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PCT/JP2021/045509 WO2022180985A1 (ja) | 2021-02-25 | 2021-12-10 | 調光装置 |
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US (1) | US20230375887A1 (ja) |
JP (1) | JPWO2022180985A1 (ja) |
CN (1) | CN117015735A (ja) |
WO (1) | WO2022180985A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08248434A (ja) * | 1995-03-13 | 1996-09-27 | Fujitsu Ltd | 液晶表示装置 |
JP2004212423A (ja) * | 2002-12-26 | 2004-07-29 | Casio Comput Co Ltd | 液晶表示素子 |
JP3203546U (ja) * | 2015-11-27 | 2016-04-07 | 位元奈米科技股▲ふん▼有限公司 | 多層の高分子分散型液晶を用いたスマ−トウインドウ |
WO2020071371A1 (ja) * | 2018-10-01 | 2020-04-09 | 大日本印刷株式会社 | 透明基材、調光部材 |
Family Cites Families (10)
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JPH08262392A (ja) * | 1995-03-22 | 1996-10-11 | Mitsubishi Electric Corp | 液晶パネル及び液晶プロジェクタ |
JP5408829B2 (ja) * | 1999-12-28 | 2014-02-05 | ゲットナー・ファンデーション・エルエルシー | アクティブマトリックス基板の製造方法 |
JP2002040105A (ja) * | 2000-07-24 | 2002-02-06 | Seiko Epson Corp | 電極パターンの検査方法及び液晶装置の製造方法 |
JP3531633B2 (ja) * | 2000-09-14 | 2004-05-31 | セイコーエプソン株式会社 | 液晶装置及び電子機器 |
JP2002311449A (ja) * | 2001-02-06 | 2002-10-23 | Seiko Epson Corp | 液晶装置、液晶装置の製造方法及び電子機器 |
JP2004349097A (ja) * | 2003-05-22 | 2004-12-09 | Sony Corp | 表示装置 |
JP4506169B2 (ja) * | 2003-12-24 | 2010-07-21 | セイコーエプソン株式会社 | 電気光学装置用基板、電気光学装置用基板の検査方法、電気光学装置、電気光学装置の検査方法及び電子機器 |
JP4353171B2 (ja) * | 2005-02-02 | 2009-10-28 | セイコーエプソン株式会社 | 電子機器、光学パネル、検査プローブ、光学パネルの検査装置、光学パネルの検査方法 |
KR20070017625A (ko) * | 2005-08-08 | 2007-02-13 | 삼성전자주식회사 | 액정 표시 장치와 이의 제조방법 |
JP2017228162A (ja) * | 2016-06-23 | 2017-12-28 | 株式会社ジャパンディスプレイ | アレイ基板、表示装置及びセンサ電極の検査方法 |
-
2021
- 2021-12-10 CN CN202180094393.5A patent/CN117015735A/zh active Pending
- 2021-12-10 JP JP2023502085A patent/JPWO2022180985A1/ja active Pending
- 2021-12-10 WO PCT/JP2021/045509 patent/WO2022180985A1/ja active Application Filing
-
2023
- 2023-08-04 US US18/230,257 patent/US20230375887A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08248434A (ja) * | 1995-03-13 | 1996-09-27 | Fujitsu Ltd | 液晶表示装置 |
JP2004212423A (ja) * | 2002-12-26 | 2004-07-29 | Casio Comput Co Ltd | 液晶表示素子 |
JP3203546U (ja) * | 2015-11-27 | 2016-04-07 | 位元奈米科技股▲ふん▼有限公司 | 多層の高分子分散型液晶を用いたスマ−トウインドウ |
WO2020071371A1 (ja) * | 2018-10-01 | 2020-04-09 | 大日本印刷株式会社 | 透明基材、調光部材 |
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Publication number | Publication date |
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CN117015735A (zh) | 2023-11-07 |
JPWO2022180985A1 (ja) | 2022-09-01 |
US20230375887A1 (en) | 2023-11-23 |
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