KR100824778B1 - Manufacturing methods of 3d hemisphere type diffuser sheet and the 3d hemisphere type diffuser sheet thereof and bead arrangment plate for the 3d hemisphere type diffuser sheet - Google Patents

Manufacturing methods of 3d hemisphere type diffuser sheet and the 3d hemisphere type diffuser sheet thereof and bead arrangment plate for the 3d hemisphere type diffuser sheet Download PDF

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KR100824778B1
KR100824778B1 KR1020070020981A KR20070020981A KR100824778B1 KR 100824778 B1 KR100824778 B1 KR 100824778B1 KR 1020070020981 A KR1020070020981 A KR 1020070020981A KR 20070020981 A KR20070020981 A KR 20070020981A KR 100824778 B1 KR100824778 B1 KR 100824778B1
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diffusion sheet
manufacturing
array plate
hemispherical lens
insertion space
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KR1020070020981A
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Korean (ko)
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성병기
김진배
노재홍
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(주)엔티아이
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0268—Diffusing elements; Afocal elements characterized by the fabrication or manufacturing method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00278—Lenticular sheets
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0221—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having an irregular structure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
    • 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
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular 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
    • G02B6/0051—Diffusing sheet or layer
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A hemispheric lens type diffusion sheet manufacturing method, a diffusion sheet produced by the same, and a bead arrangement plate for the diffusion sheet are provided to secure high transmissivity and good whiteness and side viewing angle by arranging hemispheric lenses on the upper surface of a base of the diffusion sheet at uniform height and size. A hemispheric lens type diffusion sheet manufacturing method is composed of the steps of preparing an arrangement plate(10) having insertion spaces(12) of uniform size and height fitted by beads(20) to prevent movement of the beads; making an original mold(100) by equally arranging, inserting, and fixing the beads of the predetermined size in each insertion space of the arrangement plate; making a duplicate mold(200) by forming hemispheric recessed grooves(42) on the upside of the base in vertical and horizontal directions corresponding to each bead of the original mold; and molding a diffusion sheet(300) by forming hemispheric lenses(60) on the upside of the base in vertical and horizontal directions corresponding to a molding part(40) of the duplicate mold.

Description

반구형 렌즈 타입 확산시트의 제조방법과 그에 의해 제조된 확산시트 및 확산시트 제조용 비드 배열판{MANUFACTURING METHODS OF 3D HEMISPHERE TYPE DIFFUSER SHEET AND THE 3D HEMISPHERE TYPE DIFFUSER SHEET THEREOF AND BEAD ARRANGMENT PLATE FOR THE 3D HEMISPHERE TYPE DIFFUSER SHEET}MANUFACTURING METHODS OF 3D HEMISPHERE TYPE DIFFUSER SHEET AND THE 3D HEMISPHERE TYPE DIFFUSER SHEET THEREOF AND BEAD ARRANGMENT PLATE FOR THE 3D HEMISPHERE TYPE DIFFUSER SHEET }

도 1은 종래 백라이트 유니트 구조를 보여주는 분해 사시도.1 is an exploded perspective view showing a conventional backlight unit structure.

도 2는 종래의 확산시트를 보여주는 단면 구성도.Figure 2 is a cross-sectional view showing a conventional diffusion sheet.

도 3a,b는 종래 비드 타입 확산시트를 보여주는 사진.Figure 3a, b is a photograph showing a conventional bead type diffusion sheet.

도 4는 본 발명의 제조과정을 보여주는 순서도.Figure 4 is a flow chart showing the manufacturing process of the present invention.

도 5는 도 4의 제조방법으로 제조된 확산시트를 보여주는 측 단면 구성도.Figure 5 is a side cross-sectional view showing a diffusion sheet produced by the manufacturing method of FIG.

도 6은 본 발명의 또 다른 제조과정을 보여주는 순서도.6 is a flow chart showing another manufacturing process of the present invention.

도 7은 도 6의 제조방법으로 제조된 확산시트를 보여주는 측 단면 구성도.Figure 7 is a side cross-sectional view showing a diffusion sheet produced by the manufacturing method of FIG.

도 8은 본 발명의 또 다른 제조과정을 보여주는 순서도.8 is a flow chart showing another manufacturing process of the present invention.

도 9는 도 8의 제조방법으로 제조된 확산시트를 보여주는 측 단면 구성도.Figure 9 is a side cross-sectional view showing a diffusion sheet produced by the manufacturing method of FIG.

도 10은 본 발명의 또 다른 제조과정을 보여주는 순서도.10 is a flow chart showing another manufacturing process of the present invention.

도 11은 도 10의 제조방법으로 제조된 확산시트를 보여주는 측 단면 구성도.Figure 11 is a side cross-sectional view showing a diffusion sheet produced by the manufacturing method of FIG.

**도면의 주요 부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

10: 배열판 12,12': 삽입홈10: Arrangement plate 12,12 ': Insertion groove

15, 30, 50: 베이스 15, 30, 50: base

20: 비드 40: 성형부20: Bead 40: Molding part

42: 반구형 요홈부 60: 반구형 렌즈42: hemispherical groove 60: hemispherical lens

100: 오리지날 금형100: original mold

200: 복제금형200: replication mold

300: 확산시트300: diffusion sheet

본 발명은 백라이트 유니트에 사용되는 확산시트를 금형에 의한 간단한 성형공정으로 제조하되, 베이스 상부면으로 반구 형태의 렌즈를 일정한 높이, 크기 및 배열로 형성하므로서 생산성 및 경제성 향상은 물론 광특성 효율, 즉 고투과율 및 백색도가 우수하고 측면 시야각도 우수하게 제공되는 반구형 렌즈 타입 확산시트의 제조방법과 그에 의해 제조된 확산시트 및 확산시트 제조용 비드 배열판에 관한 것이다.The present invention is to manufacture a diffusion sheet used for the backlight unit by a simple molding process by a mold, by forming a hemispherical lens in a constant height, size and arrangement of the base upper surface, as well as improving productivity and economic efficiency, as well as optical characteristics efficiency, namely The present invention relates to a method for manufacturing a hemispherical lens type diffusion sheet having excellent high transmittance and whiteness and excellent side viewing angle, and a bead array plate for manufacturing the diffusion sheet and the diffusion sheet produced thereby.

일반적으로 컴퓨터 모니터, 노트북, LCD TV, 휴대폰, 캠코더, 디지털 카메라, PDA, 네비게이션 등에 광범위하게 사용되는 액정표시장치(LCD: Liquid Crystal Display)는 자체적으로 발광할 수 없기 때문에 외부의 광원이 요구된다.In general, liquid crystal displays (LCDs), which are widely used in computer monitors, notebook computers, LCD TVs, mobile phones, camcorders, digital cameras, PDAs, and navigation devices, cannot emit light on their own and require external light sources.

이러한 광원 제공장치를 백라이트 유니트(BLU: Back Light Unit)라고 한다.Such a light source providing apparatus is called a backlight unit (BLU).

이러한 백라이트 유니트는 광원의 위치에 따라 엣지(Edge)형과 직하형으로 구분되며, LCD의 표시성능, 구조, 소비전력 등에 직접적으로 영향을 주어 LCD 패널의 상품가치를 결정하는 주요 구성요소이다.The backlight unit is classified into an edge type and a direct type according to the position of the light source, and is a main component that determines the product value of the LCD panel by directly affecting the display performance, structure, and power consumption of the LCD.

이러한 백라이트 유니트(1)의 구조는 도 1에서와 같이, 빛을 발생시키는 램프유니트와, 상기 램프유니트로부터 발산되는 빛을 받아 들여 화면 전역에 빛을 균일하게 분포시키는 도광판(2), 상기 도광판 하부로 위치하여 도광판 아래면으로 빠져 나오는 빛을 다시 반사시켜 도광판내로 돌려 보내 빛의 손실을 최소화하는 반사시트(3), 상기 도광판으로 부터 입사되는 빛을 산란시켜 골고루 확산시키는 확산시트(4), 상기 확산시트에 의해 확산된 빛을 집광시켜 휘도를 향상시키기 위해 프리즘이 상호 교차되게 적층되는 수직의 프리즘시트(5)와 수평의 프리즘시트(6), 상기 수평의 프리즘시트의 프리즘 산 부분과 액정패널면과의 마찰에 의한 스크래치 손상을 방지하기 위한 보호시트(7)를 적층하여 구성된다.As shown in FIG. 1, the backlight unit 1 includes a lamp unit that generates light, a light guide plate 2 that receives light emitted from the lamp unit, and uniformly distributes the light throughout the screen, and the lower part of the light guide plate. A reflection sheet (3) which reflects the light exiting to the lower surface of the light guide plate and returns it to the light guide plate to minimize the loss of light, and a diffusion sheet (4) which scatters and diffuses the light incident from the light guide plate evenly. Vertical prism sheet 5 and horizontal prism sheet 6 in which the prism is laminated to cross each other to condense the light diffused by the diffusion sheet to improve brightness, and the prism acid portion of the horizontal prism sheet and the liquid crystal panel The protective sheet 7 is laminated to prevent scratch damage due to friction with the surface.

이러한 백라이트 유니트는 램프 유니트에서 발생된 빛을 도광판(2)과 반사시트(3)를 통해 확산시트(4)에 입사하고, 상기 확산시트(4)에 의해 확산된 빛은 프리즘시트(5)(6)에 의해 집광 및 보호시트(7)에 의해 재차 확산되어 액정패널에 입사되는 것이다.The backlight unit enters the light generated by the lamp unit into the diffusion sheet 4 through the light guide plate 2 and the reflective sheet 3, and the light diffused by the diffusion sheet 4 is the prism sheet 5 ( 6), the light is condensed by the light converging and protective sheet 7 again and is incident on the liquid crystal panel.

특히 상기한 종래 확산기능을 갖는 확산시트와 보호시트(4)(7)는 도 2 및 도 3a,b에 도시된 바와 같이, 구형의 비드를 사용하여 제조하였다.In particular, the above-described diffusion sheet and protective sheet (4) (7) having a conventional diffusion function, as shown in Figs. 2 and 3a, b was prepared using a spherical bead.

물론 반구형이 구형 보다 확산 등의 광특성 효율이 우수하지만 상기한 반구형 형성을 위한 가공 등이 현실적으로 곤란하여 구형 비드를 이용한 제조방법이 주 를 이루고 있다.Of course, the hemispherical shape is superior to the optical characteristics such as diffusion than the spherical shape, but the processing for forming the hemispherical shape is difficult in reality, the manufacturing method using the spherical beads is the main.

이러한 방법은, PET 재질의 베이스(8) 상부에 비드(9)를 배열하고, 바인딩과 코팅공정을 행한 다음 후경화, 숙성 공정 등을 거쳐 제조하게 된다.This method is prepared by arranging the beads 9 on the base 8 of the PET material, performing the binding and coating process, and then through the post-cure, aging process and the like.

따라서, 종래의 확산시트 제조방법은 제조공정이 복잡하여 제조 및 생산성이 저하되고, 이로인해 제조원가가 상승되는 문제점이 있었다.Therefore, the conventional manufacturing method of the diffusion sheet has a problem that the manufacturing process is complicated and the production and productivity is lowered, thereby increasing the manufacturing cost.

또한, 도 2 및 도 3a,b에서와 같이 구형 비드의 높낮이, 위치, 배열 등이 모두 불 균일하게 형성되면서 광특성 효율이 현저히 저하되는 문제점과 상기 구형 비드의 높낮이 불균형으로 측면 시야각이 일정하게 제공되지 못하는 등의 제품 신뢰도가 현저히 저하되는 문제점이 있었다.In addition, as shown in Figures 2 and 3a, b, the height, position, arrangement, etc. of the spherical beads are all formed non-uniformly, the optical characteristic efficiency is significantly lowered, and the side viewing angle is constantly provided due to the uneven height of the spherical beads. There was a problem that the product reliability, such as not being significantly reduced.

본 발명은 상기한 종래 기술이 갖는 제반 문제점을 해결하고자 창출된 것으로서, 확산시트의 베이스 상부면으로 반구 형태의 렌즈를 일정한 높이, 크기를 갖도록 일정하게 배열 형성하므로서, 광특성 효율, 즉 고투과율 및 백색도가 우수하고 측면 시야각도 우수하게 제공되어 제품 신뢰성을 극대화하도록 제공하는데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, by forming a hemispherical lens in a constant height and size to the base upper surface of the diffusion sheet, so that the optical characteristic efficiency, that is, high transmittance and The purpose is to provide excellent whiteness and excellent side viewing angle to maximize product reliability.

본 발명은 상기 확산시트의 반구 형태의 렌즈를 성형하게 되는 비드를 배열판에 의해 일정하게 배열하도록 함과 상기 배열판에 의한 금형제작, 제작된 금형에 의한 간단한 성형공정으로 확산시트를 제조하도록 하므로서, 제조 생산성 및 제조원가에 따른 경제성 향상을 제공함에 그 목적이 있다. The present invention is to arrange the beads to form the hemispherical lens of the diffusion sheet by the array plate and to manufacture the diffusion sheet by a simple molding process using a mold, a mold produced by the array plate The aim is to provide economics improvement in terms of manufacturing productivity and manufacturing cost.

이러한 본 발명의 목적은, The purpose of this invention,

비드가 삽입되는 삽입공간부를 상하, 좌우로 연속 형성하는 배열판을 준비하는 단계와, 배열판의 각 삽입공간부로 비드를 각각 고르게 배열되도록 삽입 및 접착 고정하므로 오리지날금형을 제작하는 단계와, 오리지날금형의 각 비드에 대응되도록 베이스 상부면으로 반구형 요홈부를 상하, 좌우로 연속 형성한 성형부를 복사하여 복제금형을 제작하는 단계와, 복제금형의 성형부에 대응되도록 베이스 상부면으로 반구형 렌즈를 상하,좌우로 연속 형성하는 확산시트를 성형 제작하는 단계에 의한 제조방법에 의해서,Preparing an array plate for continuously inserting the insertion space portion into which the beads are inserted up and down, left and right, and manufacturing and manufacturing an original mold by inserting and fixing the beads so as to evenly arrange the insertion space portions of the arrangement plate, respectively, and original mold Making a duplicate mold by copying the molding part formed continuously up and down, left and right on the base upper surface to correspond to each bead of the bead, and the hemispherical lens up and down, left and right to the base top surface to correspond to the molding part of the replication mold By the manufacturing method by the step of forming and forming a diffusion sheet to form a continuous,

베이스 상부면으로 일정한 높이와 크기를 갖는 반구형 렌즈를 상하, 좌우로 일직선 형태로 배열하거나 지그 재그 형태로 배열 형성하는 확산시트를 제공함에 의해 달성된다.It is achieved by providing a diffusion sheet for arranging a hemispherical lens having a constant height and size to the base upper surface in a straight line or in a zigzag form.

이때, 상기 확산시트 제조용 배열판은 비드가 삽입되는 각 삽입공간부를 상하, 좌우로 연속 형성하되, 사각이나 벌집형의 상하 관통된 격자형이나 반구형 요홈 형태로 상하, 좌우로 일직선 또는 지그재그 배열되게 형성하므로서 비드를 일정하게 배열하도록 제공함에 그 특징이 있다.At this time, the array sheet for manufacturing the diffusion sheet is formed so that each insertion space portion into which the beads are inserted up and down, left and right continuously, arranged in a straight or zig-zag vertically, vertically or horizontally in the form of a square or honeycomb vertically penetrated lattice or hemispherical groove. This is because it provides a constant arrangement of beads.

이하, 상기한 본 발명의 제조방법에 대해 살펴보기로 한다.Hereinafter, the manufacturing method of the present invention described above will be described.

본 발명의 제조방법은 도 4, 도 6, 도 8 및 도 10에 도시된 바와 같다.The manufacturing method of the present invention is as shown in FIGS. 4, 6, 8 and 10.

비드가 유동방지되며 삽입되는 균일한 크기와 높이의 삽입공간부를 상하, 좌우로 연속 형성하는 배열판(10)을 준비하는 배열판 준비단계와,Arrangement plate preparation step of preparing the array plate 10 to form the insertion space portion of the uniform size and height of the bead is prevented and inserted into the vertical space, vertically and horizontally,

상기 배열판(10)의 각 삽입공간부로 일정 크기의 비드(20)를 각각 고르게 배열되도록 삽입 및 접착 고정하므로 오리지날금형(100)을 제작하는 오리지날금형 제작단계와,The original mold manufacturing step of manufacturing the original mold 100 by inserting and adhesively fixing the beads 20 of a predetermined size into each insertion space portion of the arrangement plate 10 evenly arranged, and

상기 오리지날금형(100)의 각 비드(20)에 대응되도록 베이스(30) 상부면으로 UV수지나 전주 금형(ELECTRO FORMING)에 의해 반구형 요홈부(42)를 상하, 좌우로 연속 형성한 성형부(40)를 복사하여 복제금형(200)을 제작하는 복제금형 제작단계와,Molded part formed by continuously forming the hemispherical groove 42 in the top and bottom, left and right by UV resin or electro-molding (ELECTRO FORMING) to the upper surface of the base 30 to correspond to each bead 20 of the original mold ( A replica mold manufacturing step of producing a replica mold 200 by copying 40);

상기 복제금형(200)의 성형부(40)에 대응되도록 베이스(50) 상부면으로 UV수지나 전주 금형(ELECTRO FORMING)에 의해 반구형 렌즈(60)를 상하, 좌우로 연속 형성하는 확산시트(300)를 성형 제작하는 확산시트 성형제작단계로 이루어진다.Diffusion sheet 300 for continuously forming hemispherical lens 60 vertically, vertically, and horizontally by UV resin or electroforming mold (ELECTRO FORMING) on the upper surface of the base 50 so as to correspond to the molding portion 40 of the replica mold 200. ) Is made of a diffusion sheet molding manufacturing step of forming.

이때, 상기 배열판 준비단계에서 준비되는 배열판(10)은 도 4 및 도 6에 도시된 바와 같이 사각이나 벌집형의 격자 형태로 상하 관통된 삽입공간부를 형성하거나 도 8 및 도 10에 도시된 바와 같이 반구형 홈을 가공 형성한 형태로 삽입공간부를 형성하도록 준비하게 된다.At this time, the arrangement plate 10 prepared in the arrangement plate preparation step as shown in Figures 4 and 6 to form an insertion space penetrating up and down in the form of a square or honeycomb lattice or shown in Figures 8 and 10 As described above, the insertion space portion is prepared to form the hemispherical groove processed.

즉, 도 4 및 도 6의 배열판(10)은 각 삽입공간부(12)를 상하 관통되는 사각이나 벌집형의 격자 형태로 형성하되, 각 삽입공간부(12)를 기계 가공에 의해 가공 제작한 것이다.That is, the array plate 10 of FIGS. 4 and 6 is formed in the form of a square or honeycomb lattice that penetrates the insertion space 12 up and down, and each of the insertion space 12 is processed by machining It is.

또한 도 8 및 도 10의 배열판(10)은 각 삽입공간부(12')를 반구형 요홈 형태 로 형성하되, 상기 삽입공간부(12')를 Photo Lithography, Electron Beam Lithography, Ion Beam Lithography, Nano Imprint Lithography, 밀링(Milling), 레이져(Laser) 등의 방식에 의해 가공 제작한 것이다.In addition, the array plate 10 of FIGS. 8 and 10 forms each insertion space portion 12 'in a hemispherical groove shape, and the insertion space portion 12' is formed by photo lithography, electron beam lithography, ion beam lithography, and nano. It is manufactured by imprint lithography, milling and laser.

이때, 상기 배열판(10)에 각 삽입공간부는 반구형 렌즈를 형성하기 위해서 삽입되는 비드(20)의 적어도 1/2이나 1/2보다 작게 돌출되도록 삽입되게 형성함이 바람직하며,At this time, each insertion space portion in the array plate 10 is preferably formed to be inserted so as to protrude smaller than at least 1/2 or 1/2 of the bead 20 is inserted to form a hemispherical lens,

상기 배열판(10)의 각 삽입공간부는 도면에서와 같이 상하, 좌우방향으로 일직선 형태로 정렬되어 일정하게 배열하거나 상하, 좌우방향으로 지그 재그 형태로 정렬되어 일정하게 배열하게 됨은 물론, 이외에도 다양한 규칙적인 형태로 정렬되어 일정하게 배열할 수 있으며 이와 같은 단순 배열 정도의 변경 정도는 본 발명의 권리범위에 귀속됨을 밝혀둔다.Each insertion space portion of the array plate 10 is arranged in a straight line in the vertical direction, as shown in the figure, or arranged in a uniform or arranged in a zigzag form in the vertical and vertical directions, as well as various other rules It can be arranged in a regular form and arranged regularly, and the degree of change in the degree of such a simple arrangement is to note that belongs to the scope of the present invention.

또한, 상기 오리지날금형 제작단계에서 상기 배열판(10)을 사각이나 벌집형의 격자 형태로 상하 관통된 삽입공간부를 형성한 것을 적용하는 경우에는 베이스(15) 상부에 배열판(10)을 안착하여 사용하게 되고, 반구형 홈을 가공 형성한 형태로 삽입공간부를 형성한 것을 적용하는 경우에는 베이스가 배제된 상태로 배열판(10)만을 사용하게 된다.In addition, when the original mold forming step is applied to the array plate 10 formed by inserting the upper and lower insertion space in the form of a square or honeycomb lattice, seating the array plate 10 on the base 15 In the case where the insertion space portion is formed in the form in which the hemispherical groove is processed and formed, only the array plate 10 is used with the base removed.

이때, 상기 오리지날금형 제작단계에서 상기 배열판(10)에 삽입되는 비드(20)는 오리지날금형(100) 성형부(40)의 반구형 요홈부(42) 외표면을 경면 및 조도 등을 우수하게 확보하기 위해서 비드(20) 외표면으로 구리(Cu), 알루미늄(Al), 티타늄(Ti), 수은(Hg), 은(Ag) 등의 어느 하나를 도금이나 증착 형성한 일정 두께 의 표면층을 형성하여 사용하게 된다.At this time, the bead 20 is inserted into the array plate 10 in the original mold manufacturing step to secure the mirror surface and roughness of the hemispherical groove portion 42 of the original mold 100 molded part 40 excellent In order to form a surface layer having a predetermined thickness by plating or depositing any one of copper (Cu), aluminum (Al), titanium (Ti), mercury (Hg), silver (Ag), etc., on the outer surface of the bead 20 Will be used.

이러한 본 발명을 좀더 구체적으로 설명하기로 한다.This invention will be described in more detail.

먼저, 배열판(10)상에 10~60㎛ 비드(Bead)(20)가 삽입될 수 있는 균일한 크기의 삽입공간부을 상하, 좌우로 연속 형성하도록 가공하여 준비한다.First, a process of preparing an insert space portion of a uniform size into which 10 to 60 μm beads 20 can be inserted is arranged on the array plate 10 so as to be continuously formed vertically and horizontally.

이때, 상기 삽입공간부(12)(12')는 상하 관통되는 사각이나 벌집형의 격자 형태로 형성하거나 반구형 요홈 형태로 형성하되, 이를 상하, 좌우로 일 직선 형태로 배열되게 형성하거나 상하, 좌우로 지그 재그 형태로 배열되게 형성하여 사용하게 된다.At this time, the insertion space (12, 12 ') is formed in the form of a square or honeycomb lattice penetrating up and down or in the form of a hemispherical groove, it is formed to be arranged in a straight line form up and down, left and right, or up and down, left and right It is used to form and arrange in the form of zigzag.

상기한 배열판(10) 및 그 삽입공간부의 형상 및 배열은 다양하게 변형할 수 있으며 이와 같은 단순 구조의 변경 정도는 본 발명의 권리범위에 귀속됨을 밝혀둔다.The shape and arrangement of the arrangement plate 10 and the insertion space portion thereof can be variously modified, and the degree of change in the simple structure is found to belong to the scope of the present invention.

또한, 상기 배열판(10)의 삽입공간부(12)(12')는 비드의 절반 높이와 같거나 더 높게 형성되게 사용 제작함이 바람직하다.In addition, the insertion space portion 12, 12 ′ of the array plate 10 is preferably manufactured to be used to be formed equal to or higher than half the height of the bead.

이와 같이 배열판(10)이 준비되면, 상기 배열판(10)의 삽입공간부로 접착제를 주입한 후 비드(20)를 고르게 배열되도록 삽입하여 고정하거나, 각 삽입홈(12)으로 비드를 고르게 배열되도록 삽입한 후 접착제를 주입하여 고정하게 된다.When the arrangement plate 10 is prepared as described above, the adhesive is injected into the insertion space of the arrangement plate 10, and then the beads 20 are inserted and fixed to be evenly arranged, or the beads are evenly arranged in each insertion groove 12. After inserting it, it is fixed by injecting adhesive.

이때, 상기 배열판(10)의 삽입공간부(12)가 상하 관통 형성된 경우에는 별도의 베이스판(15)상부에 안착시킨 후 사용한다.At this time, when the insertion space portion 12 of the arrangement plate 10 is formed through the upper and lower it is used after seated on the separate base plate (15).

그리고, 상기 비드(20)는 타원 등의 변형된 형태를 적용할 수 있으나 일정한 크기와 높이의 반구형 렌즈를 형성하기 위해서는 원형이 바람직하게 적용되고, 외표면으로 구리(Cu), 알루미늄(Al), 티타늄(Ti), 수은(Hg), 은(Ag) 등의 어느 하나를 도금이나 증착 형성한 일정 두께의 표면층을 형성한 것을 적용하게 된다.In addition, the bead 20 may be applied to a modified shape such as an ellipse, but in order to form a hemispherical lens having a constant size and height, a circular shape is preferably applied, and as the outer surface, copper (Cu), aluminum (Al), What forms the surface layer of the predetermined thickness which plated or vapor-deposited any one of titanium (Ti), mercury (Hg), silver (Ag), etc. is applied.

상기와 같이 제작되는 것이 오리지날 금형(100)이다.The original mold 100 is produced as described above.

이와 같이 오리지날 금형(100)이 제작되면, 상기 금형의 비드에 대응되도록 베이스(30)상부면으로 UV수지나 전주 금형(ELECTRO FORMING)에 의해 반구형 요홈부(42)를 상하, 좌우로 연속 형성한 성형부(40)를 형성하도록 복사하는 복제 금형(200)을 제작하게 된다.When the original mold 100 is manufactured as described above, the hemispherical recess 42 is continuously formed vertically or horizontally by UV resin or electroforming mold on the upper surface of the base 30 so as to correspond to the beads of the mold. The replica die 200 is copied to form the molding unit 40.

특히, 상기 비드(20)에 대응되어 형성되는 반구형 요홈부(42)는 상기 비드(20)의 외표면으로 구리(Cu), 알루미늄(Al), 티타늄(Ti), 수은(Hg), 은(Ag) 등의 어느 하나를 도금이나 증착 형성한 일정 두께의 표면층을 형성하고 있기 때문에 외표면의 경면 및 조도 등을 우수하게 확보하게 되는 것이다.In particular, the hemispherical groove 42 formed corresponding to the bead 20 has copper (Cu), aluminum (Al), titanium (Ti), mercury (Hg), silver () as an outer surface of the bead 20. Since a surface layer having a predetermined thickness obtained by plating or depositing any one of Ag) and the like is formed, the mirror surface, roughness and the like of the outer surface are excellently secured.

이와 같이 복제 금형(200)이 제작되면,When the replica die 200 is produced in this way,

상기 복제 금형(200)을 이용하여 본 발명의 확산시트(300)를 성형제작하게 되는 것이다.By using the replica mold 200 is to form the diffusion sheet 300 of the present invention.

이는 상기 복제 금형(200) 상부의 반구형 요홈부(42)에 의해 형성된 성형부(40)에 대응되도록 베이스(50) 상부면으로 UV수지나 전주 금형(ELECTRO FORMING)에 의해 반구형 렌즈(60)를 상하, 좌우로 연속 형성하는 확산시트(300)를 성형 제작하게 되는 것이다.The hemispherical lens 60 is formed by UV resin or electroforming mold on the upper surface of the base 50 so as to correspond to the molding part 40 formed by the hemispherical recess 42 in the upper part of the replica mold 200. Forming and manufacturing the diffusion sheet 300 to be formed continuously up, down, left and right.

이때, 상기 복제 금형(200)의 반구형 요홈부(42) 외표면의 경면 및 조도 등이 우수하게 확보되어 있기 때문에 이에 의해 제조된 확산시트(300)의 반구형 렌즈(60) 또한 외표면의 경면 및 조도 등이 우수하게 제공되게 되는 것이다.At this time, since the mirror surface and the roughness of the outer surface of the hemispherical groove 42 of the replica die 200 are excellently secured, the hemispherical lens 60 of the diffusion sheet 300 manufactured thereby also has a mirror surface of the outer surface and The illuminance is to be provided excellently.

이와 같이 본 발명의 제조방법에 의해 제작되는 확산시트(300)는 도 5 및 도 9에 도시된 바와 같이, 베이스(50) 상부면으로 일정한 높이와 크기를 갖는 반구형 렌즈(60)를 상하, 좌우로 일직선 형태로 배열 형성하도록 제작하여 이루거나 도 7 및 도 11에 도시된 바와 같이, 베이스(50) 상부면으로 일정한 높이와 크기를 갖는 반구형 렌즈(60)를 상하, 좌우로 지그 재그 형태로 배열 형성하도록 제작하여 이루어진다.As described above, the diffusion sheet 300 manufactured by the manufacturing method of the present invention has a hemispherical lens 60 having a predetermined height and size as the top surface of the base 50, as shown in FIGS. 5 and 9. 7 and 11, the hemispherical lens 60 having a predetermined height and size is arranged vertically and vertically in a zigzag form as shown in FIGS. 7 and 11. It is made to form.

이러한 본 발명의 확산시트(300)는 종래 베이스 위에 비드, 바인더, 코팅의 4중 구조로서 후경화, 숙성 등의 복잡한 제조 단계를 베이스 위에 UV수지나 전주 금형에 의한 성형으로 간단하게 제작하기 때문에 생산성, 및 제조원가 절감에 따른 경제성을 우수하게 제공하게 되는 것이다.The diffusion sheet 300 of the present invention is a quadruple structure of a bead, a binder, and a coating on a conventional base, so that a complicated manufacturing step such as post-curing and aging may be easily produced by molding by UV resin or electroforming mold on the base. In addition, it will provide excellent economics due to the reduction in manufacturing cost.

뿐만아니라 상기 반구형 렌즈(60)를 일정한 높이와 크기 및 일정한 배열로 형성함은 물론 외표면의 경면 및 조도 등이 우수하게 제공되므로서 최상의 광특성 효율, 즉 고투과율 및 백색도가 우수하게 제공됨은 물론 보는 각도에 상관없이 일정한 밝기의 휘도를 제공하므로서 측면 시야각도 우수하게 제공할 수 있게 되는 것이다.In addition, the hemispherical lens 60 is formed in a constant height, size, and a constant arrangement, as well as the mirror surface and roughness of the outer surface, so that the best optical efficiency, ie, high transmittance and whiteness, is excellent. By providing the brightness of a constant brightness irrespective of the viewing angle, it is possible to provide an excellent side viewing angle.

한편, 상기한 본 발명의 확산시트(300)를 제조하기 위한 배열판(10)은 도 4, 도 6, 도 8 및 도 10에서 도시된 바와 같이, 비드(20)가 삽입되어 유동방지되도록 균일한 크기와 높이의 삽입공간부를 상하, 좌우로 연속 형성하도록 이루어진다.On the other hand, the arrangement plate 10 for manufacturing the diffusion sheet 300 of the present invention as shown in Figure 4, 6, 8 and 10, the beads 20 are inserted so as to prevent flow. The insertion space of one size and height is formed to be continuously formed up and down, left and right.

이때, 상기 배열판(10)의 삽입공간부는 사각이 벌집 형태로 상하 관통된 격자형태로 삽입공간부(12)를 형성하거나 반구형 홈을 가공 형성한 형태로 삽입공간부(12')를 형성하도록 이룬다.At this time, the insertion space portion of the array plate 10 to form the insertion space portion 12 in the form of a rectangular through a grid of penetrating up and down in the form of a honeycomb or form a hemispherical groove to form the insertion space portion 12 '. Achieve.

즉, 도 4 및 도 6의 배열판(10)은 격자 형태의 각 삽입공간부(12)를 기계 가공에 의해 가공 제작하고, 또한 도 8 및 도 10의 배열판(10)은 반구형 홈 형태의 각 삽입공간부(12')를 Photo Lithography, Electron Beam Lithography, Ion Beam Lithography, Nano Imprint Lithography, 밀링(Milling), 레이져(Laser) 등의 방식에 의해 가공 제작한다.That is, the array plate 10 of FIGS. 4 and 6 processes and fabricates the respective insertion spaces 12 having a lattice shape by machining, and the array plate 10 of FIGS. 8 and 10 has a hemispherical groove shape. Each insertion space 12 'is fabricated by photolithography, electron beam lithography, ion beam lithography, nano imprint lithography, milling, laser, or the like.

이러한 배열판(10)은 각 삽입공간부로 10~60㎛ 비드(Bead)(20)를 일정하고 균일하게 삽입 배열하여 고정하도록 사용하게 되는 것이다.This arrangement plate 10 is to be used to insert and fix the 10 ~ 60㎛ bead (Bead) 20 uniformly and uniformly into each insertion space portion.

다시말해, 상기한 배열판에 의해 비드를 상하, 좌우로 일정하게 배열 형성할 수 있기 때문에 본 발명의 제조방법에서와 같은 오리지날금형의 제작이 가능하게 됨은 물론 본 발명의 반구형 렌즈를 갖는 확산시트의 제조가 가능하게 되는 것이다.In other words, since the beads can be arranged to be uniformly arranged up and down, left and right by the above-described array plate, the original mold as in the manufacturing method of the present invention can be manufactured, as well as the diffusion sheet having the hemispherical lens of the present invention. It is possible to manufacture.

이상에서 살펴본 바와 같이 본 발명은 확산시트의 반구형 렌즈를 성형하게 되는 비드를 배열판에 의해 일정하게 배열하도록 함과 상기 비드 배열판에 의한 금형제작, 제작된 금형에 의한 간단한 성형공정으로 확산시트를 제조하도록 하므로서, 제조 생산성 및 제조원가에 따른 경제성 향상을 제공하고,As described above, the present invention is to uniformly arrange the beads for forming the hemispherical lens of the diffusion sheet by the array plate, and to manufacture the mold by the bead array plate, a simple molding process using the manufactured mold. Manufacturing, thereby improving the economics of manufacturing productivity and manufacturing costs,

또한, 상기 확산시트의 베이스 상부면으로 반구형 렌즈를 일정한 높이, 크기를 갖도록 일정하게 배열 형성하도록 성형하므로서, 광특성 효율, 즉 고투과율 및 백색도가 우수하고 측면 시야각도 우수하게 제공되어 제품 신뢰성을 극대화하도록 제공하는 효과를 갖는 것이다.In addition, by forming a semi-spherical lens to be arranged to have a constant height, size to the base upper surface of the diffusion sheet, the optical characteristic efficiency, that is, high transmittance and whiteness is excellent and the side viewing angle is also provided to maximize product reliability It is to have an effect to provide.

Claims (13)

백라이트 유니트의 확산시트를 제조함에 있어서,In manufacturing the diffusion sheet of the backlight unit, 비드가 유동방지되도록 삽입되는 균일한 크기와 높이의 삽입공간부를 상하, 좌우로 연속 형성하는 배열판을 준비하는 배열판 준비단계와,An array plate preparation step of preparing an array plate which continuously and vertically inserts an insertion space part of a uniform size and height into which beads are inserted to prevent flow; 상기 배열판의 각 삽입공간부로 일정 크기의 비드를 각각 고르게 배열되도록 삽입 및 접착 고정하므로 오리지날금형을 제작하는 오리지날금형 제작단계와,An original mold manufacturing step of manufacturing an original mold by inserting and adhesively fixing the beads of a predetermined size into each insertion space portion of the arrangement plate to be evenly arranged; 상기 오리지날금형의 각 비드에 대응되도록 베이스 상부면으로 반구형 요홈부를 상하, 좌우로 연속 형성한 성형부를 복사하여 복제금형을 제작하는 복제금형 제작단계와,A duplicate mold manufacturing step of manufacturing a duplicate mold by copying a molding part continuously formed up and down, left and right in a base upper surface so as to correspond to each bead of the original mold; 상기 복제금형의 성형부에 대응되도록 베이스 상부면으로 반구형 렌즈를 상하,좌우로 연속 형성하는 확산시트를 성형 제작하는 확산시트 성형제작단계로 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.A method of manufacturing a hemispherical lens type diffusion sheet comprising a diffusion sheet molding manufacturing step of forming and manufacturing a diffusion sheet which continuously forms a hemispherical lens vertically, vertically, and horizontally to the base upper surface so as to correspond to the molding portion of the replication mold. 제1항에 있어서,The method of claim 1, 상기 복제금형 제작단계와 확산시트 성형제작단계는 오리지날금형 및 복제금형에서 각각 복제금형 및 확산시트 성형시에 UV수지나 전주 금형(ELECTRO FORMING)에 의해 성형하는 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.The replica mold manufacturing step and the diffusion sheet molding manufacturing step of the hemispherical lens type diffusion sheet, characterized in that the molding in the original mold and the replication mold, respectively by UV resin or electroforming mold (ELECTRO FORMING) at the time of replication mold and diffusion sheet molding Manufacturing method. 제1항에 있어서,The method of claim 1, 상기 배열판 준비단계에서는 격자형태로 삽입공간부를 상하 관통 형성하도록 배열판을 준비하는 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.In the preparing of the array plate, the manufacturing method of the hemispherical lens type diffusion sheet, characterized in that to prepare the array plate to penetrate the upper and lower insertion space portion in the form of a grid. 제1항에 있어서,The method of claim 1, 상기 배열판 준비단계에서는 반구형 홈을 가공 형성한 형태로 삽입공간부를 형성하도록 배열판을 준비하는 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.In the preparing step of the array plate manufacturing method of the hemispherical lens type diffusion sheet, characterized in that to prepare the array plate to form the insertion space portion in the form in which the hemispherical groove is formed. 제3항 또는 제4항에 있어서, The method according to claim 3 or 4, 상기 배열판의 삽입공간부는 비드의 절반 높이와 같거나 더 큰 높이를 갖도록 형성한 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.The insertion space of the array plate manufacturing method of the hemispherical lens type diffusion sheet, characterized in that formed to have a height equal to or greater than half the height of the bead. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4, 상기 배열판의 각 삽입공간부는 상하, 좌우방향으로 일직선 형태로 정렬되게 배열되어 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.Each insertion space portion of the array plate is a manufacturing method of the hemispherical lens type diffusion sheet, characterized in that arranged in a straight line shape in the vertical direction. 제3항 또는 제4항에 있어서,The method according to claim 3 or 4, 상기 배열판의 각 삽입공간부는 상하, 좌우방향으로 지그 재그 형태로 정렬되게 배열되어 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.Each insertion space portion of the array plate is a manufacturing method of a hemispherical lens type diffusion sheet, characterized in that arranged in a zigzag form arranged in the vertical direction. 제1항에 있어서,The method of claim 1, 상기 오리지날금형 제작단계에서 상기 배열판에 삽입되는 비드 외표면으로 구리(Cu), 알루미늄(Al), 티타늄(Ti), 수은(Hg), 은(Ag) 중의 하나를 도금이나 증착 형성한 표면층을 형성한 것을 특징으로 하는 반구형 렌즈 타입 확산시트의 제조방법.The surface layer formed by plating or depositing one of copper (Cu), aluminum (Al), titanium (Ti), mercury (Hg), and silver (Ag) as an external surface of the bead inserted into the array plate in the original mold manufacturing step. Method for producing a hemispherical lens type diffusion sheet characterized in that formed. 제1항의 제조방법에 의해 베이스(50) 상부면으로 일정한 높이와 크기를 갖는 반구형 렌즈(60)를 상하, 좌우로 일직선 형태로 정렬되게 배열 형성하여 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트.The hemispherical lens type diffusion sheet according to claim 1, wherein the hemispherical lens 60 having a predetermined height and size is arranged on the upper surface of the base 50 so as to be aligned in a straight line shape. 제1항의 제조방법에 의해 베이스(50) 상부면으로 일정한 높이와 크기를 갖는 반구형 렌즈(60)를 상하, 좌우로 지그 재그 형태로 정렬되게 배열 형성하여 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트.The hemispherical lens type diffusion sheet according to claim 1, wherein the hemispherical lens 60 having a predetermined height and size is arranged on the upper surface of the base 50 so as to be arranged in a zigzag shape in the vertical direction. 백라이트 유니트의 확산시트를 제조하기 위해 사용되는 비드(20)를 배열하기 위한 것에 있어서,In order to arrange the beads 20 used to manufacture the diffusion sheet of the backlight unit, 상기 비드(20)가 삽입되어 유동방지되도록 균일한 크기와 높이의 삽입공간부를 상하, 좌우로 연속 형성하는 배열판(10)을 제공하는 것을 특징으로 하는 반구형 렌즈 타입 확산시트 제조용 비드 배열판.The bead array plate for manufacturing a hemispherical lens type diffuser sheet, characterized in that the bead (20) is provided to provide an array plate (10) continuously formed up and down, left and right in the insertion space portion of a uniform size and height to prevent flow. 제11항에 있어서,The method of claim 11, 상기 배열판(10)의 삽입공간부는 격자형태로 상하 관통된 삽입공간부(12)를 형성하도록 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트 제조용 비드 배열판.Insertion space portion of the array plate 10 bead array plate for manufacturing a hemispherical lens type diffusion sheet, characterized in that formed to form an insertion space portion 12 penetrated vertically. 제11항에 있어서,The method of claim 11, 상기 배열판(10)의 삽입공간부는 반구형 홈을 가공 형성한 형태로 삽입공간 부(12')를 형성하도록 이루어진 것을 특징으로 하는 반구형 렌즈 타입 확산시트 제조용 비드 배열판.Insertion space portion of the array plate 10 bead array plate for manufacturing a hemispherical lens type diffusion sheet, characterized in that formed to form the insertion space portion (12 ') in the form formed by processing the hemispherical groove.
KR1020070020981A 2007-01-31 2007-03-02 Manufacturing methods of 3d hemisphere type diffuser sheet and the 3d hemisphere type diffuser sheet thereof and bead arrangment plate for the 3d hemisphere type diffuser sheet KR100824778B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11119012A (en) 1997-10-17 1999-04-30 Fuji Photo Film Co Ltd Production of light reflection plate and liquid crystal display
JP2000298205A (en) 1999-01-18 2000-10-24 Fuji Photo Film Co Ltd Optical diffusing plate and display device
JP2002193518A (en) 2000-12-26 2002-07-10 Ricoh Co Ltd Conveyance assisting member for image forming device
JP2006323148A (en) 2005-05-19 2006-11-30 Seiko Epson Corp Manufacturing method of microlens, microlens, optical film, screen for projection, projector system, electrooptical apparatus, and electronic equipment
KR20070063827A (en) * 2005-12-15 2007-06-20 에스케이씨 주식회사 Process for preparing light diffusion sheet for backlight unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11119012A (en) 1997-10-17 1999-04-30 Fuji Photo Film Co Ltd Production of light reflection plate and liquid crystal display
JP2000298205A (en) 1999-01-18 2000-10-24 Fuji Photo Film Co Ltd Optical diffusing plate and display device
JP2002193518A (en) 2000-12-26 2002-07-10 Ricoh Co Ltd Conveyance assisting member for image forming device
JP2006323148A (en) 2005-05-19 2006-11-30 Seiko Epson Corp Manufacturing method of microlens, microlens, optical film, screen for projection, projector system, electrooptical apparatus, and electronic equipment
KR20070063827A (en) * 2005-12-15 2007-06-20 에스케이씨 주식회사 Process for preparing light diffusion sheet for backlight unit

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