KR20050106292A - The blu manufacturing way which used the light that lgp corner contained - Google Patents

The blu manufacturing way which used the light that lgp corner contained Download PDF

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Publication number
KR20050106292A
KR20050106292A KR1020040031484A KR20040031484A KR20050106292A KR 20050106292 A KR20050106292 A KR 20050106292A KR 1020040031484 A KR1020040031484 A KR 1020040031484A KR 20040031484 A KR20040031484 A KR 20040031484A KR 20050106292 A KR20050106292 A KR 20050106292A
Authority
KR
South Korea
Prior art keywords
light
lgp
blu
light emitting
guide plate
Prior art date
Application number
KR1020040031484A
Other languages
Korean (ko)
Inventor
박승곤
Original Assignee
세광테크 주식회사
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 세광테크 주식회사 filed Critical 세광테크 주식회사
Priority to KR1020040031484A priority Critical patent/KR20050106292A/en
Publication of KR20050106292A publication Critical patent/KR20050106292A/en

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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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces

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)

Abstract

모바일용 액정표시장치(LCD)의 핵심부품 중의 하나인 후면발광장치(BLU)에 있어서, 현재 도광판 측면에 발광다이오드(LED)를 설치하는(SIDE TYPE)구조에서 도광판 모서리(모따기부)에 LED를 설치함(EDGE TYPE)으로써 빛의 효율향상 및 원가절감 할 수 있는 구조In the back light emitting device (BLU), which is one of the core parts of the liquid crystal display (LCD) for mobile devices, LEDs are placed at the edges of the light guide plate (SIDE TYPE) in a structure in which a light emitting diode (LED) is installed on the side of the light guide plate. EDGE TYPE improves light efficiency and reduces cost

Description

도광판 모서리의 입광부를 이용한 BLU제조방법{The BLU manufacturing way which used the light that LGP corner contained} The BLU manufacturing way which used the light that LGP corner contained}

LCD에 의한 표시는 그 자체가 비발광성이기 때문에 어두운 곳에서의 사용이 가능하게 할 목적으로 표시면을 균일하게 광을 면조사하는 장치가 BLU ( Back Light Unit )이다. 그림1과 같이BLU ( Back Light Unit )의 구성은 발광장치(CCFL/LED), 반사필름, 도광판(LGP), 확산필름, 프리즘 등의 시트류와 이 부품을 하나의 유닛으로 묶어주는 몰드 프레임(Mold Frame)으로구성되어 있다. Since the display by the LCD itself is non-luminous, the BLU (Back Light Unit) is a device that irradiates light uniformly on the display surface for the purpose of enabling use in a dark place. As shown in Figure 1, the BLU (Back Light Unit) consists of sheets of light emitting devices (CCFL / LED), reflective films, LGPs, diffusers, and prisms, and a mold frame that binds these parts into one unit. Mold Frame).

그림1 참조 (BLU구조와 기능) 여기서 발광원인 LED를 기존 측면에서 도광판에 입사하면서 발생되는 빛의 효율을 최대한 올리기 위해 그림과 같이 모서리부 모따기부분에 LED를 안착시켜 효율을 최대한 올려줌으로 휘도향상을 기대할 수 있다. Refer to Figure 1 (BLU Structure and Function) Here, in order to maximize the efficiency of light generated when the light emitting source is incident on the LGP from the existing side, as shown in the figure, the LED is placed on the corner chamfer to increase the efficiency to the maximum. You can expect

그림2(SIDE 방식과 EDGE방식의 발광효율 비교)와 같이 현재 적용되고 있는 측면(SIDE)방식에서는 가장자리 2개 LED의 광효율이 끝단에서 많은 손실을 가져오는 것에 비해, 모서리(EDGE)방식에서는 LED 1개 또는 2개로 유효발광면적 전체를 빛 손실을 줄이면서 발광효율을 최대한 살릴 수 있는 구조이다.도광판 발광위치에 따른 기술분야 : EDGE TYPE(모서리 방식), 종래기술 : FLAT/WEDGE(SIDE)/DIRECT TYPEAs shown in Fig. 2 (comparison of luminous efficiency of SIDE method and EDGE method), currently applied side method uses two LEDs at the edge. It is a structure that can maximize the luminous efficiency while reducing the light loss of the entire effective light emitting area by two or two.Technical field according to the light emitting panel light emitting position: EDGE TYPE (edge type), conventional technology: FLAT / WEDGE (SIDE) / DIRECT TYPE

발광부 위치이동에 따른 도광판 패턴 개발Light guide plate pattern development by moving the light emitting part

LGP(모따기 형상)LGP (Chamfer Shape)

1. 원가절감(LED를 1개이상 절감효과)을 통한 가격경쟁우위1. Price Competitive Advantage through Cost Reduction (More Than One LED)

2. 발광효율 극대화(LED 입광효율 극대화)를 통한 기술경쟁우위2. Technological Competitive Advantage through Maximization of Luminous Efficiency

Claims (1)

1. LGP 모따기 부분을 입광부로 하는 도광판(EDGE TYPE)이 적용된 백라이트유닛1. Backlight unit to which the LGP chamfer part is used as the light guide plate (EDGE TYPE) 2. LED 입사각(71˚)의 범위 전체를 도광판에 적용하는 백라이트유닛2. Backlight unit that applies the entire range of LED incident angle (71˚) to the light guide plate 3. LGP 모따기 부분을 입광부로 하여 패턴 적용하는 백라이트유닛3. Backlight unit applying pattern with LGP chamfer part as light incident part
KR1020040031484A 2004-05-04 2004-05-04 The blu manufacturing way which used the light that lgp corner contained KR20050106292A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040031484A KR20050106292A (en) 2004-05-04 2004-05-04 The blu manufacturing way which used the light that lgp corner contained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040031484A KR20050106292A (en) 2004-05-04 2004-05-04 The blu manufacturing way which used the light that lgp corner contained

Publications (1)

Publication Number Publication Date
KR20050106292A true KR20050106292A (en) 2005-11-09

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KR1020040031484A KR20050106292A (en) 2004-05-04 2004-05-04 The blu manufacturing way which used the light that lgp corner contained

Country Status (1)

Country Link
KR (1) KR20050106292A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100981850B1 (en) * 2008-01-24 2010-09-13 포모사 에피택시 인코포레이션 Light emitting diode with higher illumination efficiency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100981850B1 (en) * 2008-01-24 2010-09-13 포모사 에피택시 인코포레이션 Light emitting diode with higher illumination efficiency

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