JP2004361914A - フロントライト、反射型表示装置及びフロントライトにおける光制御方法 - Google Patents

フロントライト、反射型表示装置及びフロントライトにおける光制御方法 Download PDF

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Publication number
JP2004361914A
JP2004361914A JP2003347514A JP2003347514A JP2004361914A JP 2004361914 A JP2004361914 A JP 2004361914A JP 2003347514 A JP2003347514 A JP 2003347514A JP 2003347514 A JP2003347514 A JP 2003347514A JP 2004361914 A JP2004361914 A JP 2004361914A
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JP
Japan
Prior art keywords
light
point
guide plate
emitted
light source
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.)
Pending
Application number
JP2003347514A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004361914A5 (enExample
Inventor
Makoto Ohira
真琴 大平
Yuuki Matsui
優貴 松井
Motohiko Matsushita
元彦 松下
Akihiro Funamoto
昭宏 船本
Shigeru Aoyama
茂 青山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP2003347514A priority Critical patent/JP2004361914A/ja
Priority to US10/843,213 priority patent/US7163330B2/en
Priority to CNB2004100381851A priority patent/CN1321336C/zh
Publication of JP2004361914A publication Critical patent/JP2004361914A/ja
Publication of JP2004361914A5 publication Critical patent/JP2004361914A5/ja
Pending legal-status Critical Current

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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
    • G02B6/0033—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
    • 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
    • G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
    • 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
    • G02F1/133616—Front illuminating devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
JP2003347514A 2003-05-15 2003-10-06 フロントライト、反射型表示装置及びフロントライトにおける光制御方法 Pending JP2004361914A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003347514A JP2004361914A (ja) 2003-05-15 2003-10-06 フロントライト、反射型表示装置及びフロントライトにおける光制御方法
US10/843,213 US7163330B2 (en) 2003-05-15 2004-05-11 Front light, reflective type of display, and light controlling method
CNB2004100381851A CN1321336C (zh) 2003-05-15 2004-05-14 前照灯、反射式显示装置及前照灯中的光控制方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003138023 2003-05-15
JP2003347514A JP2004361914A (ja) 2003-05-15 2003-10-06 フロントライト、反射型表示装置及びフロントライトにおける光制御方法

Publications (2)

Publication Number Publication Date
JP2004361914A true JP2004361914A (ja) 2004-12-24
JP2004361914A5 JP2004361914A5 (enExample) 2006-11-02

Family

ID=33554368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003347514A Pending JP2004361914A (ja) 2003-05-15 2003-10-06 フロントライト、反射型表示装置及びフロントライトにおける光制御方法

Country Status (3)

Country Link
US (1) US7163330B2 (enExample)
JP (1) JP2004361914A (enExample)
CN (1) CN1321336C (enExample)

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* Cited by examiner, † Cited by third party
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JP2006259115A (ja) * 2005-03-16 2006-09-28 Omron Corp 両面表示装置及び面光源装置
JP2006301326A (ja) * 2005-04-21 2006-11-02 Toppan Printing Co Ltd 導光板および液晶表示装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006259115A (ja) * 2005-03-16 2006-09-28 Omron Corp 両面表示装置及び面光源装置
JP2006301326A (ja) * 2005-04-21 2006-11-02 Toppan Printing Co Ltd 導光板および液晶表示装置

Also Published As

Publication number Publication date
CN1550376A (zh) 2004-12-01
US7163330B2 (en) 2007-01-16
US20050002175A1 (en) 2005-01-06
CN1321336C (zh) 2007-06-13

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