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KR960008382A - Light distribution device for liquid crystal display - Google Patents

Light distribution device for liquid crystal display Download PDF

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Publication number
KR960008382A
KR960008382A KR1019950024634A KR19950024634A KR960008382A KR 960008382 A KR960008382 A KR 960008382A KR 1019950024634 A KR1019950024634 A KR 1019950024634A KR 19950024634 A KR19950024634 A KR 19950024634A KR 960008382 A KR960008382 A KR 960008382A
Authority
KR
South Korea
Prior art keywords
liquid crystal
crystal display
light source
plate
display panel
Prior art date
Application number
KR1019950024634A
Other languages
Korean (ko)
Inventor
요시끼 아이하라
히로까즈 후꾸요시
Original Assignee
가네꼬 히사시
니뽄 덴끼 가부시끼가이샤
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 가네꼬 히사시, 니뽄 덴끼 가부시끼가이샤 filed Critical 가네꼬 히사시
Publication of KR960008382A publication Critical patent/KR960008382A/en

Links

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
    • G02B6/0045—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
    • 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
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • 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

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)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

액정표시장치용 배광장치는 광원(12)과, 상기 광원에서 다중광반사에 의한 면광원으로서 액정표시패널의 배면을 조사하는 광전도판(11)을 갖는다. 광전도판(11)은 장방형이고 액정표시패널에 평행하게 위치한 평면형의 조광면(15)과, 단측부의 중앙부에 있고 광전도판(11)의 장측부에 평행하게 제공되는 홈(14)를 갖는다. 상기 홈은 그 안에 광원을 수용한다. 상기 광전도판의 배면(16)은 상기 홈(14)에 의해 분할된 장측부의 양단부를 향하여 그 두께가 점차 감소되도록 형성된다.The light distribution device for a liquid crystal display device has a light source 12 and a photoconductive plate 11 for irradiating the back surface of the liquid crystal display panel as a surface light source by multiple light reflections from the light source. The photoconductor plate 11 has a rectangular dimming surface 15 positioned parallel to the liquid crystal display panel, and a groove 14 provided in the center portion of the short side portion and provided in parallel to the long side portion of the photoconductor plate 11. The groove receives a light source therein. The back surface 16 of the photoconductor plate is formed such that its thickness gradually decreases toward both ends of the long side portion divided by the groove 14.

광전도판과 본체(24)의 하부면 사이의 점차적인 공간 변화에 따라 전자소자가 전자회로기판(21)상에 수용되기 때문에, 상기 장치는 두께가 얇고 무게를 줄일 수 있도록 구성된다.Since the electronic element is accommodated on the electronic circuit board 21 in accordance with the gradual spatial change between the photoconductor plate and the lower surface of the main body 24, the device is configured to be thin and to reduce the weight.

Description

액정 표시 장치용 배광 장치Light distribution device for liquid crystal display

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 실시예의 액정표시장치에 사용되는 광전도판의 사시도.3 is a perspective view of a photoconductor plate used in the liquid crystal display device of the embodiment according to the present invention.

제4도는 제3도에 도시된 광전도판이 사용된 액정표시장치의 단면도.4 is a cross-sectional view of a liquid crystal display device using the photoconductive plate shown in FIG.

Claims (4)

광원(12)과, 상기 광원을 형성하는 다증광반사에 의해 면광원으로서의 액정표시패널(22)의 배면을 조사하는 광전도판(11)를 갖는 액정표시장치에 있어서, 상기 광전도판은, 상기 액정표시패널에 면하는 조광면(15)과, 상기 광원을 그 안에 수용하기 위해 광전도판의 중앙부에 제공되는 홈(14)과, 상기 조광면에 대향하고 상기 광전도판의 두께가 그 단부를 향하여 점차 감소되도록 형성된 배면(16)을 포함하는 것을 특징으로 하는 액정표시장치.In the liquid crystal display device which has the light source 12 and the photoconductive plate 11 which irradiates the back surface of the liquid crystal display panel 22 as a surface light source by the multi-light reflection which forms the said light source, The said photoconductive plate is a said liquid crystal. A dimming surface 15 facing the display panel, a groove 14 provided in the center portion of the photoconductive plate for accommodating the light source therein, and a thickness of the photoconductive plate facing the dimming surface gradually toward the end thereof. And a back surface (16) formed to be reduced. 제1항에 있어서, 상기 형광램프(12)과 상기 광전도판(11)를 수용하도록 상기 액정표시패널(22)과 협력하는 본체(24)와, 상기 액정표시패널을 구동하고 상기 광전도판의 상기 배면에 의해 한정된 공간과 상기 본체 사이에 제공된 전자회로기판(21)을 또한 포함하는 것을 특징으로 하는 액정표시장치.The apparatus of claim 1, further comprising: a main body (24) cooperating with the liquid crystal display panel (22) to receive the fluorescent lamp (12) and the photoconductor plate (11); And an electronic circuit board (21) provided between the space defined by the rear surface and the main body. 제1항에 있어서, 상기 광원(12)은 형광램프를 포함하는 것을 특징으로 하는 액정표시장치.The liquid crystal display device according to claim 1, wherein the light source (12) comprises a fluorescent lamp. 액정표시패널(22)과, 서로 평행한 제1 및 제2측부를 가지는 광전도판(11)과, 상기 제1 및 제2측부를 따라서 상기 광전도판의 중앙부에 제공된 홈(l4)과, 상기 홈에 수용된 광원(12)을 포함하는 액정표시장치에 있어서, 상기 광전도판은 상기 액정표시패널에 면하는 전방면(15)과 상기 전방면에 대향되며 상기 광전도판의 두께가 상기 중앙부로부터 상기 제1 및 제2측부로 점차 감소되도록 형성되는 배면(16)을 갖는 것을 특징으로 하는 액정표시장치.A photoconductive plate 11 having a liquid crystal display panel 22, first and second side portions parallel to each other, a groove l4 provided in a central portion of the photoconductive plate along the first and second side portions, and the groove In the liquid crystal display device including a light source 12 accommodated in the, the photoconductor plate is opposed to the front surface 15 and the front surface facing the liquid crystal display panel, the thickness of the photoconductor plate from the center portion to the first And a back surface 16 formed to gradually decrease to the second side portion. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950024634A 1994-08-16 1995-08-10 Light distribution device for liquid crystal display KR960008382A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6192617A JPH0862426A (en) 1994-08-16 1994-08-16 Back light of liquid crystal display
JP94-192617 1994-08-16

Publications (1)

Publication Number Publication Date
KR960008382A true KR960008382A (en) 1996-03-22

Family

ID=16294245

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Application Number Title Priority Date Filing Date
KR1019950024634A KR960008382A (en) 1994-08-16 1995-08-10 Light distribution device for liquid crystal display

Country Status (3)

Country Link
JP (1) JPH0862426A (en)
KR (1) KR960008382A (en)
TW (1) TW314606B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100457233B1 (en) * 1997-05-06 2005-07-05 삼성전자주식회사 Backlight Structure of Liquid Crystal Display

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4264013B2 (en) * 2004-02-20 2009-05-13 富士フイルム株式会社 Light guide plate, planar illumination device using the same, and liquid crystal display device
EP1788302A4 (en) 2004-09-06 2011-08-24 Fujifilm Corp Transmittance adjuster unit, planar illumination device, liquid crystal display device using the same, and transmittance adjuster arrangement method
EP1813859A4 (en) 2004-11-09 2010-03-17 Fujifilm Corp Light guide plate, surface illuminator using same and liquid crystal display
KR100657580B1 (en) * 2004-11-19 2006-12-14 주식회사 제이씨 Light guide plate for backlight unit
US7445358B2 (en) 2005-12-27 2008-11-04 Fujifilm Corporation Light guide plate and a planar lighting device using the same
JP4524255B2 (en) 2006-02-07 2010-08-11 富士フイルム株式会社 Surface lighting device
JP4555250B2 (en) * 2006-04-24 2010-09-29 富士フイルム株式会社 Light guide plate and planar illumination device using the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57171115A (en) * 1981-04-13 1982-10-21 Niigata Eng Co Ltd Bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100457233B1 (en) * 1997-05-06 2005-07-05 삼성전자주식회사 Backlight Structure of Liquid Crystal Display

Also Published As

Publication number Publication date
JPH0862426A (en) 1996-03-08
TW314606B (en) 1997-09-01

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