JP4795480B2 - 光ガイドを備えた表示装置 - Google Patents
光ガイドを備えた表示装置 Download PDFInfo
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- JP4795480B2 JP4795480B2 JP2010187009A JP2010187009A JP4795480B2 JP 4795480 B2 JP4795480 B2 JP 4795480B2 JP 2010187009 A JP2010187009 A JP 2010187009A JP 2010187009 A JP2010187009 A JP 2010187009A JP 4795480 B2 JP4795480 B2 JP 4795480B2
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- movable element
- light guide
- display device
- light
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable 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
- G02B6/0033—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
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/3473—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on light coupled out of a light guide, e.g. due to scattering, by contracting the light guide with external means
-
- 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
- G02B6/0051—Diffusing sheet or layer
-
- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/351—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements
- G02B6/3522—Optical coupling means having switching means involving stationary waveguides with moving interposed optical elements the optical element enabling or impairing total internal reflection
-
- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/35—Optical coupling means having switching means
- G02B6/3564—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details
- G02B6/3568—Mechanical details of the actuation mechanism associated with the moving element or mounting mechanism details characterised by the actuating force
- G02B6/357—Electrostatic force
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0252—Improving the response speed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Description
F=1/2ε0(V/d)2・S
であり、ここでFは前記力、Vは電位差、dは電極間の距離及びSは電極の表面積である。他の力がない場合には、10−100V程度の大きさのスイッチング電圧を用いて可動素子をスイッチさせる、即ち可動素子を光ガイドと局部的に接触させる又は光ガイドとの接触を中断させることができる。
2 光ガイド
3 可動素子
4 第2プレート
5 透明電極
6 電極
7 カバー素子
8 排気空間
9 光源
10,11 絶縁層
12,13 スペーサ
15,16 接続線
17 制御ユニット
20 色決定素子
51,52 付着防止層
F 電気的力
V 電位差
d 電極間の距離
S 電極の表面積
Claims (21)
- 光ガイドと、可動素子と、前記可動素子を光ガイドと局部的に接触させる選択手段とを備える表示装置において、前記可動素子は導電性であり、前記選択手段が透明電極を備え、且つ動作中に、前記可動素子が光ガイドと接触するとき前記透明電極の少なくとも1つの位置で光ガイドと接触し、その結果として、前記光ガイドを伝搬する光が、前記透明電極を通して前記光ガイドの外部へ放射せしめられることを特徴とする表示装置。
- 前記可動素子は該素子から静電荷を除去する手段を備えていることを特徴とする請求項1記載の表示装置。
- 前記可動素子の光ガイドに面する面上に付着防止層が設けられていることおよび、または光ガイドの可動素子に面する面上に付着防止層が設けられていることを特徴とする請求項1記載の表示装置。
- 前記可動素子の光ガイドに面する表面および、または前記光ガイドの可動素子に面する表面は5nm以上の平均荒さ(Ra)を有し、且つ両表面の何れも0.1μmを超える荒さを有しないことを特徴とする請求項1記載の表示装置。
- 前記両表面の粗さは50〜200nmの範囲であることを特徴とする請求項4記載の表示装置。
- 前記可動素子は排気空間内に配置されていることを特徴とする請求項1記載の表示装置。
- 前記可動素子が前記光ガイドと他の素子との間に配置され、前記選択手段が、前記可動素子を前記光ガイドの方向に動かす力及び前記可動素子を前記他の素子の方向に動かす力を局部的に発生する手段を備えていることを特徴とする請求項1記載の表示装置。
- 前記可動素子が一定の電位であることを特徴とする請求項1記載の表示装置。
- 前記可動素子が、導電性ポリマ、金属またはインジウム−酸化錫を含むことを特徴とする請求項1記載の表示装置。
- 前記可動素子が光の散乱中心を有することを特徴とする請求項1記載の表示装置。
- 前記光の散乱中心が、気泡または散乱粒子であることを特徴とする請求項10記載の表示装置。
- 前記散乱粒子がTiO 2 であることを特徴とする請求項11記載の表示装置。
- 光ガイドと、可動素子と、前記可動素子を光ガイドと局部的に接触させる選択手段とを備える表示装置において、前記可動素子および前記光ガイドのうち少なくとも1つは、前記可動素子と前記光ガイドとの接触が行われる側に付着防止層を備え、且つ前記選択手段が電極を備え、該電極の少なくとも1つは実質的に透明であり、前記可動素子を前記透明電極の位置で前記光ガイドと接触することによって、前記光ガイドを伝搬する光を、前記透明電極を通して前記光ガイドの外部へ放射させることを特徴とする表示装置。
- 前記可動素子は導電性であることを特徴とする請求項13記載の表示装置。
- 光ガイドと、可動素子と、前記可動素子を光ガイドと局部的に接触させる選択手段とを備える表示装置において、前記可動素子は導電性であり、前記選択手段が電極を備え、該電極の少なくとも1つは実質的に透明であり、且つ前記可動素子は、動作中に前記光ガイドと接触すると、前記透明の電極の場所において前記光ガイドと接触し、それによって前記透明の電極を通して、前記光ガイドを伝搬する光を前記光ガイドの外部へ放射させることを特徴とする表示装置。
- 前記可動素子の前記光ガイドに面する表面、および/または、前記光ガイドの前記可動素子に面する表面は、5nm以上の平均荒さ(Ra)を有し、且つ両表面の何れも0.1μmを超える荒さを有しないことを特徴とする請求項15記載の表示装置。
- 前記可動素子が一定の電位であることを特徴とする請求項15記載の表示装置。
- 前記可動素子が、導電性ポリマ、金属またはインジウム−酸化錫を含むことを特徴とする請求項15記載の表示装置。
- 前記可動素子が光の散乱中心を有することを特徴とする請求項15記載の表示装置。
- 前記光の散乱中心が、気泡または散乱粒子であることを特徴とする請求項19記載の表示装置。
- 前記散乱粒子がTiO 2 であることを特徴とする請求項20記載の表示装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97203741 | 1997-11-29 | ||
EP97203741.0 | 1997-11-29 | ||
EP98202065 | 1998-06-22 | ||
EP98202065.3 | 1998-06-22 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53043499A Division JP2001511265A (ja) | 1997-11-29 | 1998-11-24 | 光ガイドを具えた表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011013686A JP2011013686A (ja) | 2011-01-20 |
JP4795480B2 true JP4795480B2 (ja) | 2011-10-19 |
Family
ID=26147088
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53043499A Withdrawn JP2001511265A (ja) | 1997-11-29 | 1998-11-24 | 光ガイドを具えた表示装置 |
JP2010187009A Expired - Fee Related JP4795480B2 (ja) | 1997-11-29 | 2010-08-24 | 光ガイドを備えた表示装置 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53043499A Withdrawn JP2001511265A (ja) | 1997-11-29 | 1998-11-24 | 光ガイドを具えた表示装置 |
Country Status (6)
Country | Link |
---|---|
US (2) | US6628246B1 (ja) |
EP (1) | EP0958571B1 (ja) |
JP (2) | JP2001511265A (ja) |
KR (1) | KR100560044B1 (ja) |
DE (1) | DE69816593T2 (ja) |
WO (1) | WO1999028890A1 (ja) |
Families Citing this family (55)
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US6377383B1 (en) | 1997-09-04 | 2002-04-23 | The University Of British Columbia | Optical switching by controllable frustration of total internal reflection |
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TW556002B (en) * | 2000-10-17 | 2003-10-01 | Koninkl Philips Electronics Nv | Light valve and device provided with a light valve |
JP2003057567A (ja) * | 2001-08-16 | 2003-02-26 | Sony Corp | 光学多層構造体、光スイッチング素子およびその製造方法、並びに画像表示装置 |
US6452734B1 (en) | 2001-11-30 | 2002-09-17 | The University Of British Columbia | Composite electrophoretically-switchable retro-reflective image display |
ATE330304T1 (de) * | 2001-12-10 | 2006-07-15 | Koninkl Philips Electronics Nv | Anzeigetafel mit einem lichtleiter |
US20050162357A1 (en) * | 2002-01-22 | 2005-07-28 | Koninklijke Philips Electronics N.V. | Display device comprising a light guide |
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-
1998
- 1998-11-24 JP JP53043499A patent/JP2001511265A/ja not_active Withdrawn
- 1998-11-24 KR KR1019997006707A patent/KR100560044B1/ko not_active IP Right Cessation
- 1998-11-24 EP EP98952979A patent/EP0958571B1/en not_active Expired - Lifetime
- 1998-11-24 DE DE69816593T patent/DE69816593T2/de not_active Expired - Lifetime
- 1998-11-24 US US09/355,592 patent/US6628246B1/en not_active Expired - Fee Related
- 1998-11-24 WO PCT/IB1998/001867 patent/WO1999028890A1/en active IP Right Grant
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2003
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KR20000070469A (ko) | 2000-11-25 |
KR100560044B1 (ko) | 2006-03-13 |
US6628246B1 (en) | 2003-09-30 |
EP0958571B1 (en) | 2003-07-23 |
DE69816593T2 (de) | 2004-07-01 |
US7463227B2 (en) | 2008-12-09 |
JP2001511265A (ja) | 2001-08-07 |
US20040061665A1 (en) | 2004-04-01 |
EP0958571A1 (en) | 1999-11-24 |
DE69816593D1 (de) | 2003-08-28 |
WO1999028890A1 (en) | 1999-06-10 |
JP2011013686A (ja) | 2011-01-20 |
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