KR100241829B1 - Flat light source unit - Google Patents

Flat light source unit Download PDF

Info

Publication number
KR100241829B1
KR100241829B1 KR1019980039844A KR19980039844A KR100241829B1 KR 100241829 B1 KR100241829 B1 KR 100241829B1 KR 1019980039844 A KR1019980039844 A KR 1019980039844A KR 19980039844 A KR19980039844 A KR 19980039844A KR 100241829 B1 KR100241829 B1 KR 100241829B1
Authority
KR
South Korea
Prior art keywords
light source
source unit
flat light
flat
unit
Prior art date
Application number
KR1019980039844A
Other languages
Korean (ko)
Inventor
Makoto Oe
Itsusei Jiba
Original Assignee
Mitsubishi Rayon 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
Priority claimed from KR1019880014868A external-priority patent/KR100319327B1/en
Application filed by Mitsubishi Rayon Co filed Critical Mitsubishi Rayon Co
Application granted granted Critical
Publication of KR100241829B1 publication Critical patent/KR100241829B1/en

Links

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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/02—Function characteristic reflective

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)
KR1019980039844A 1987-11-12 1998-09-25 Flat light source unit KR100241829B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28428987 1987-11-12
JP13439388 1988-06-02
KR1019880014868A KR100319327B1 (en) 1987-11-12 1988-11-12 The surface light source unit

Publications (1)

Publication Number Publication Date
KR100241829B1 true KR100241829B1 (en) 2000-02-01

Family

ID=27316885

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980039844A KR100241829B1 (en) 1987-11-12 1998-09-25 Flat light source unit

Country Status (1)

Country Link
KR (1) KR100241829B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100867903B1 (en) 2008-03-18 2008-11-10 주식회사 엘엠에스 Backlight unit having the optical film of which patterns are extending to the light guide plate, and display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100867903B1 (en) 2008-03-18 2008-11-10 주식회사 엘엠에스 Backlight unit having the optical film of which patterns are extending to the light guide plate, and display device

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A107 Divisional application of patent
A201 Request for examination
E902 Notification of reason for refusal
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Payment date: 20121023

Year of fee payment: 14

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