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KR960001825A - Surface light source device - Google Patents

Surface light source device Download PDF

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Publication number
KR960001825A
KR960001825A KR1019940015021A KR19940015021A KR960001825A KR 960001825 A KR960001825 A KR 960001825A KR 1019940015021 A KR1019940015021 A KR 1019940015021A KR 19940015021 A KR19940015021 A KR 19940015021A KR 960001825 A KR960001825 A KR 960001825A
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KR
South Korea
Prior art keywords
shape
lamp holder
light
source device
guide plate
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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.)
Granted
Application number
KR1019940015021A
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Korean (ko)
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KR0149722B1 (en
Inventor
임영민
김철수
박수훈
홍성제
Original Assignee
김정덕
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Priority to KR1019940015021A priority Critical patent/KR0149722B1/en
Publication of KR960001825A publication Critical patent/KR960001825A/en
Application granted granted Critical
Publication of KR0149722B1 publication Critical patent/KR0149722B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/009—Positioning aspects of the light source in the package
    • 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
    • G02B6/0001—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
    • G02B6/0055—Reflecting 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
    • 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
    • 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
    • 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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • 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)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

본 발명은 액정표시소자등의 조명장치로 사용되는 면광원장치에 관한 것이다. 이를 위한 본 발명은, 램프로 부터의 광을 확산판으로 안내하는 도광판과, 상기 도광판의 하부에 설치되며 도광판으로 부터 안내되는 광에서 분산된 광을 상기 확산판으로 반사시키는 반사판과,이 반사판과 도광판 사이에 형성되는 산란점막, 및 상기 램프를 고정설치하는 램프홀더를 구비하는 면광원장치에 있어서, 상기 램프홀더를 광 이용효율이 순차적으로 큰 복합, 코너드, 스퀘어, 비구면, 구면 형상을 조합하여 구성하되, 상기 램프로 부터 도광판으로 입사되는 광의 세기가 균일하게 유지되도록 상기 램프홀더의 양측단부는 광이용효율이 큰 형상으로 하고 상기 램프홀더의 중앙부쪽으로 향하면서 상기 양측단부에 이용된 형상보다 광 이용효율이 작은 형상으로 하여 구성된 램프홀더를 포함하고 있어, 상기 램프에서 도광판으로 입사되는 광세기 분포를 균일하게 할 수 있는 이점을 제공한다.The present invention relates to a surface light source device used as a lighting device such as a liquid crystal display device. The present invention for this purpose, a light guide plate for guiding the light from the lamp to the diffuser plate, a reflecting plate installed in the lower portion of the light guide plate and reflecting the light dispersed in the light guided from the light guide plate to the diffuser plate, In the surface light source device having a scattering mucosa formed between the light guide plate, and a lamp holder for fixing the lamp, the lamp holder is a combination of a composite, corner, square, aspherical, spherical shape with sequentially high light utilization efficiency In order to maintain the intensity of light incident from the lamp to the light guide plate uniformly, both end portions of the lamp holder have a high light utilization efficiency and are directed toward the center portion of the lamp holder, rather than the shape used at the both end portions. It includes a lamp holder configured to have a shape with a low light utilization efficiency, the light incident to the light guide plate from the lamp The distribution offers the advantage that can be made uniform.

Description

면광원장치Surface light source device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래 면광원장치를 개략적으로 도시한 단면도.1 is a cross-sectional view schematically showing a conventional surface light source device.

제2도는 제1도의 면광원장치에 의해 조사되는 광세기 분포를 나타내는 사시도.2 is a perspective view showing a light intensity distribution irradiated by the surface light source device of FIG.

제3도는 종래 면광원장치의 다른 실시예를 도시한 사시도.3 is a perspective view showing another embodiment of the conventional surface light source device.

제4도는 본 발명에 따른 면광원장치를 설명하기 위한 일반적인 면광원장치의 구성도.4 is a block diagram of a general surface light source device for explaining the surface light source device according to the present invention.

제5도는 제4도의 면광원장치의광손실율을 나타내는 그래프.5 is a graph showing the light loss rate of the surface light source device of FIG.

제6도는 본 발명에 따른 면광원장치에 적용되는 램프홀더 형상의 다양한 형태를 나타내는 예시도.6 is an exemplary view showing various forms of lamp holder shapes applied to the surface light source device according to the present invention.

제7도는 본 발명에 따른 면발광장치를 도시한 사시도.7 is a perspective view showing a surface light emitting device according to the present invention.

제8도 내지 제10도는 본 발명에 따른 면발광장치의 다른 실시예를 도시한 사시도.8 to 10 are perspective views showing another embodiment of the surface light emitting device according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 확산판 12 : 램프11: diffuser 12: lamp

13 : 도광판 14 : 반사판13: light guide plate 14: reflecting plate

15 : 산란점막 16 : 램프홀더15: scattering mucosa 16: lamp holder

18 : 광세기 분포 18 : 발광휘도 분포18 light intensity distribution 18 light emission luminance distribution

40 : 구면(Concentric)형상 50 : 비구면(Aspherical)형상40: Concentric shape 50: Aspherical shape

55 : 스퀘어(Square)형상 60 : 코너드(Cornered)형상55: Square shape 60: Cornered shape

65 : 복합(Composite)형상65: Composite shape

Claims (8)

램프로 부터의 광을 확산판으로 안내하는 도광판과, 상기 도광판의 하부에 설치되며 도광판으로 부터 안내되는 광에서 분산된 광을 상기 확산판으로 반사시키는 반사판과, 이 반사판과 도광판 사이에 형성되는 산락점막, 및 상기 램프를 고정설치하는 램프홀더를 구비하는 면광원장치에 있어서, 상기 램프홀더를 광 이용효율이 순차적으로 큰 복합, 코너드, 스퀘어, 비구면, 구면 형상을 조합하여 구성하되, 상기 램프로 부터 도광판으로 입사되는 광의 세기가 균일하게 유지되도록 상기 램프홀더의 양측단부는 광 이용효율이 큰 형상으로 하고 상기 램프홀더의 중앙부쪽으로 향하면서 상기 양측단부에 이용된 형상보다 광 이용효율이 작은 형상으로 하여 구성된 램프홀더를 포함하는 것을 특징으로 하는 면광원장치.A light guide plate for guiding the light from the lamp to the diffuser plate, a reflector plate disposed below the light guide plate and reflecting light dispersed in the light guided from the light guide plate to the diffuser plate, and a fall formed between the reflector plate and the light guide plate A surface light source device comprising a mucosa and a lamp holder for fixing the lamp, wherein the lamp holder is configured by combining a composite, corner, square, aspherical, and spherical shape having a high light utilization efficiency sequentially, wherein the lamp Both ends of the lamp holder have a shape of high light utilization efficiency so that the intensity of light incident from the light guide plate to the light guide plate is uniform, and toward the center of the lamp holder, the shape of the light utilization efficiency is smaller than that used at the both ends. A surface light source device comprising a lamp holder configured to. 제1항에 있어서, 상기 램프홀더의 양측단부는 복합 형상으로 되고 중앙부는 상기 구면, 비구면, 스퀘어, 코너드 형상중의 어느 한 형상으로 된 것을 특징으로 하는 면광원장치.2. The surface light source device according to claim 1, wherein both end portions of the lamp holder have a complex shape, and a central portion has any one of the spherical, aspherical, square, and corner shapes. 제1항에 있어서, 상기 램프홀더의 양측단부는 코너드 형상으로 되고 중앙부는 상기 구면, 비구면, 스퀘어 형상중의 어느 한 형상으로 된 것을 특징으로 하는 면광원장치.The surface light source device according to claim 1, wherein both end portions of the lamp holder are in a corner shape, and a center portion is formed in any one of the spherical, aspherical and square shapes. 제1항에 있어서, 상기 램프홀더의 양측단부는 스퀘어 형상으로 되고 중앙부는 구면, 비구면 형상중의 어느 한 형상으로 된 것을 특징으로 하는 면광원장치.The surface light source device according to claim 1, wherein both end portions of the lamp holder have a square shape, and a center portion has a spherical or aspheric shape. 제1항에 있어서, 상기 램프홀더의 양측단부는 비구면 형상으로 되고 중앙부는 구면, 형상으로 된 것을 특징으로 하는 면광원장치.The surface light source device according to claim 1, wherein both end portions of the lamp holder have an aspherical surface shape and a central portion has a spherical surface shape. 제1항에 또는 제2항에 있어서, 상기 램프홀더의 양측단부는 복합 형상으로 하고 중앙부는 상기 구면, 비구면, 스퀘어, 코너드 형상중의 어느 한 현상으로 하되, 상기 양측단부와 중앙부 사이는 상기 복합 형상보다는 광 이용효율이 작고 상기 중앙부에 사용된 형상보다는 광 이용효율이 큰 형상으로 된 것을 특징으로 하는 면광원장치.According to claim 1 or claim 2, wherein both ends of the lamp holder is a composite shape and the central portion is any one of the spherical surface, aspherical surface, square, corner shape, wherein between the both ends and the central portion is Surface light source device characterized in that the light utilization efficiency is smaller than the composite shape, and the light utilization efficiency is larger than the shape used in the central portion. 제1항 또는 제3항에 있어서, 상기 램프홀더의 양측단부는 코너드 형상으로 하고 중앙부는 상기 구면, 비구면, 스퀘어 형상중의 어느 한 형상으로 하되, 상기 양측단부와 중앙부 사이는 상기 코너드 형상보다는 광 이용효율이 작고 상기 중앙부에 사용된 형상보다는 광 이용효율이 큰 형상으로 된 것을 특징으로 하는 면광원장치.According to claim 1 or claim 3, wherein both ends of the lamp holder is in the shape of a corner and the central portion is any one of the spherical, aspherical, square shape, wherein the corner between the both ends and the center portion Surface light source device characterized in that the light utilization efficiency is smaller than the shape used in the central portion rather than the light utilization efficiency. 제1항 또는 제4항에 있어서, 상기 램프홀더의 양측단부는 스퀘어 형상으로 하고 중앙부는 구면, 비구면, 형상중의 어느 한 형상으로 하되, 상기 중앙부가 구면 형상으로 되었으면 상기 램프홀더의 양측단부와 중앙부사이는 비구면 형상으로 된 것을 특징으로 하는 면광원장치.5. The lamp holder of claim 1, wherein both ends of the lamp holder have a square shape, and a central part has a spherical shape, an aspheric shape, or a shape, and the center part has a spherical shape. Surface light source device characterized in that the center portion between the aspherical shape. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940015021A 1994-06-28 1994-06-28 Flat light source device Expired - Fee Related KR0149722B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940015021A KR0149722B1 (en) 1994-06-28 1994-06-28 Flat light source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940015021A KR0149722B1 (en) 1994-06-28 1994-06-28 Flat light source device

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Publication Number Publication Date
KR960001825A true KR960001825A (en) 1996-01-25
KR0149722B1 KR0149722B1 (en) 1998-10-15

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KR1019940015021A Expired - Fee Related KR0149722B1 (en) 1994-06-28 1994-06-28 Flat light source device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990008720A (en) * 1997-07-03 1999-02-05 윤종용 Backlight Assembly of Liquid Crystal Display
KR100356290B1 (en) * 2000-02-23 2002-10-12 삼성전기주식회사 Coil separator of deflection yoke
KR100783619B1 (en) * 2002-06-29 2007-12-07 삼성전자주식회사 Lighting device and backlight assembly and liquid crystal display device having the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100617879B1 (en) * 2000-01-18 2006-09-08 삼성전자주식회사 Backlight Unit for Liquid Crystal Display

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990008720A (en) * 1997-07-03 1999-02-05 윤종용 Backlight Assembly of Liquid Crystal Display
KR100356290B1 (en) * 2000-02-23 2002-10-12 삼성전기주식회사 Coil separator of deflection yoke
KR100783619B1 (en) * 2002-06-29 2007-12-07 삼성전자주식회사 Lighting device and backlight assembly and liquid crystal display device having the same

Also Published As

Publication number Publication date
KR0149722B1 (en) 1998-10-15

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