CN1078335C - 面光源元件及使用它的液晶显示装置和标志显示装置 - Google Patents

面光源元件及使用它的液晶显示装置和标志显示装置 Download PDF

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Publication number
CN1078335C
CN1078335C CN97192605A CN97192605A CN1078335C CN 1078335 C CN1078335 C CN 1078335C CN 97192605 A CN97192605 A CN 97192605A CN 97192605 A CN97192605 A CN 97192605A CN 1078335 C CN1078335 C CN 1078335C
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CN
China
Prior art keywords
light
light source
photoconductor
source element
angle
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.)
Expired - Lifetime
Application number
CN97192605A
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English (en)
Chinese (zh)
Other versions
CN1212042A (zh
Inventor
小田雅春
千叶一清
林泰子
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Rayon Co Ltd
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
Priority claimed from JP17512296A external-priority patent/JP3682124B2/ja
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of CN1212042A publication Critical patent/CN1212042A/zh
Application granted granted Critical
Publication of CN1078335C publication Critical patent/CN1078335C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • G02B6/005—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, 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
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • 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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
CN97192605A 1996-02-01 1997-01-31 面光源元件及使用它的液晶显示装置和标志显示装置 Expired - Lifetime CN1078335C (zh)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP40719/96 1996-02-01
JP40719/1996 1996-02-01
JP4071996 1996-02-01
JP16928/1996 1996-02-01
JP16928/96 1996-02-01
JP1692896 1996-02-01
JP175122/96 1996-07-04
JP17512296A JP3682124B2 (ja) 1996-07-04 1996-07-04 面光源素子
JP175122/1996 1996-07-04

Publications (2)

Publication Number Publication Date
CN1212042A CN1212042A (zh) 1999-03-24
CN1078335C true CN1078335C (zh) 2002-01-23

Family

ID=27281622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97192605A Expired - Lifetime CN1078335C (zh) 1996-02-01 1997-01-31 面光源元件及使用它的液晶显示装置和标志显示装置

Country Status (7)

Country Link
US (3) US6099135A (enExample)
EP (1) EP0882930B1 (enExample)
KR (1) KR19990082166A (enExample)
CN (1) CN1078335C (enExample)
DE (1) DE69740010D1 (enExample)
ID (1) ID15863A (enExample)
WO (1) WO1997028403A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1914461B (zh) * 2004-01-29 2010-08-18 三菱丽阳株式会社 面光源装置用导光体及其制造方法和面光源装置

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Publication number Priority date Publication date Assignee Title
CN1914461B (zh) * 2004-01-29 2010-08-18 三菱丽阳株式会社 面光源装置用导光体及其制造方法和面光源装置

Also Published As

Publication number Publication date
EP0882930A4 (en) 1999-03-31
US6244719B1 (en) 2001-06-12
WO1997028403A1 (en) 1997-08-07
US6099135A (en) 2000-08-08
US6332691B2 (en) 2001-12-25
US20010030861A1 (en) 2001-10-18
DE69740010D1 (de) 2010-11-11
CN1212042A (zh) 1999-03-24
EP0882930B1 (en) 2010-09-29
EP0882930A1 (en) 1998-12-09
KR19990082166A (ko) 1999-11-25
KR100409150B1 (enExample) 2004-02-18
ID15863A (id) 1997-08-14

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