WO2014098430A1 - Feuille-support pour dispositif luminescent et dispositif luminescent l'utilisant - Google Patents

Feuille-support pour dispositif luminescent et dispositif luminescent l'utilisant Download PDF

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Publication number
WO2014098430A1
WO2014098430A1 PCT/KR2013/011650 KR2013011650W WO2014098430A1 WO 2014098430 A1 WO2014098430 A1 WO 2014098430A1 KR 2013011650 W KR2013011650 W KR 2013011650W WO 2014098430 A1 WO2014098430 A1 WO 2014098430A1
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WO
WIPO (PCT)
Prior art keywords
light
emitting device
pattern
back sheet
light source
Prior art date
Application number
PCT/KR2013/011650
Other languages
English (en)
Korean (ko)
Inventor
김주영
Original Assignee
Kim Joo Young
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
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Application filed by Kim Joo Young filed Critical Kim Joo Young
Publication of WO2014098430A1 publication Critical patent/WO2014098430A1/fr

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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
    • 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
    • G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
    • 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
    • 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

Definitions

  • the present invention relates to a back sheet for a light emitting device and a light emitting device using the same,
  • light guide patterns repeatedly formed on a surface of a base film, particularly a reflective film are formed by printing light-emitting ink mixed with a pressure-sensitive adhesive, , Particularly, in the case of attaching to a light-emitting panel constituting a display (signboard, guide plate, etc.) or a surface lighting device,
  • a back sheet for a light emitting device capable of producing both a dot type light guiding pattern to be aligned with the directionality of the light source irradiating portion and a lattice type light guiding pattern irrespective of the directionality of the light source irradiating portion, And a light emitting device using the same.
  • a back sheet of a display device is generally laminated with various laminated films or composite films such as a reflective film, a light guiding film, a diffusion film, and a prism sheet.
  • a double light guide film or light guide panel is a member that provides a path for uniformly scattering and diffusing light irradiated from a light source, and is used in a light receiving type flat panel display device such as a liquid crystal display device, a surface light source device .
  • the surface light source device has a structure in which at least one light source is provided on the side wall of the light guide plate to diffuse the light after the light is guided, or a meandering discharge space is formed in the container having the closed space portion, And a method of exciting the phosphor layer formed in the discharge space by these discharges to emit light.
  • Such a surface light source device is disclosed in Korean Patent Application Nos. 93-11174, 94-26117, 94-33115, 94-26116, 2000-44725, and the like.
  • a surface light source device typically includes a light guide plate, a reflection plate provided below the light guide plate, and a light source installed on a side wall of the light guide plate.
  • the light guide plate has a plurality of light guide pattern portions printed using titanium oxide (TiO2) in the form of a bead and ink including glass or acrylic for scattering and diffusing light incident on one side of a transparent acrylic resin .
  • TiO2 titanium oxide
  • the light guide pattern portion formed by the conventional printing method has been pointed out to have a problem that the manufacturing and printing process of the ink is very complicated and a defective rate such as a part of the printed portion is dropped or stained is high and the yield is low.
  • a back sheet in particular, a light guide sheet
  • a utility model registration No. 20-0453058 registered on March 29, 2011
  • a reflective sheet provided with a light guiding pattern
  • the registration design proposes a back sheet having a light guiding pattern capable of reducing a manufacturing cost of a back light unit and improving brightness and luminance uniformity by forming a pattern for guiding light and / or light from the light source on a reflection sheet have.
  • the patent discloses a method of manufacturing a light guide plate by manufacturing a reflective sheet provided with a light guide pattern and attaching the reflective sheet to a synthetic resin plate including acrylic and a manufacturing system capable of implementing such a method.
  • the present invention is characterized in that light guide patterns formed repeatedly on the surface of a base film, in particular, a reflective film are formed, and these patterns are formed by printing a luminescent ink mixed with an adhesive, (A signboard, a guide plate, etc.) or a light-transmitting panel constituting a surface illuminating device, the productivity can be remarkably improved since it can be simply pressed and attached, and a light emitting device using the same .
  • the present invention improves the luminous ink mixed with the pressure-sensitive adhesive for printing a light-guiding pattern, and maintains adhesiveness even when it is repeatedly attached and detached, and the pattern of the back sheet attached to the light- And to provide a back sheet which can be greatly increased.
  • the present invention provides a light emitting device capable of producing both a dot-shaped light guiding pattern to be adjusted according to the directionality of the light source irradiating portion and a grid light guiding pattern irrespective of the directionality of the light source irradiating portion, And a light emitting device using the same.
  • a back sheet for a light emitting device there is provided a back sheet for a light emitting device
  • Each of the patterns is formed by printing a light-emitting ink mixed with a pressure-sensitive adhesive and has adhesiveness.
  • the density of the patterns increases as the distance from the light source irradiating unit increases.
  • each of the patterns comprises a plurality of pattern elements densely packed in a rectangular pattern outline, the outline of the rectangular pattern is arranged in an inclined manner with respect to the light source, and each pattern element is composed of a corner portion and a side portion do.
  • a backsheet comprising a base film and light guide patterns repeatedly formed on the base film surface
  • a light projecting panel attached to the back sheet surface
  • a light source provided on a part or all of side surfaces of the light transmitting panel
  • Each pattern of the back sheet is formed by printing a light-emitting ink mixed with a pressure-sensitive adhesive, and is characterized in that it has adhesiveness.
  • the back sheet for a light-emitting device and the light-emitting device using the same according to the present invention have light guide patterns repeatedly formed on a surface of a base film, particularly a reflective film, and these patterns are formed by printing a light-
  • a light emitting device particularly a display (signboard, guide plate, etc.) or a light projecting panel constituting a surface illuminating device
  • the back sheet can be merely pressurized and adhered.
  • productivity can be remarkably improved, Even when the luminous ink mixed with the pressure-sensitive adhesive for printing a pattern is improved, the adhesiveness is maintained, and the pattern of the back sheet adhered to the light transmitting panel is not buried, so that workability and quality can be drastically increased Further, even when the back sheet and the back sheet are connected to each other, the light guiding performance is maintained, and the directionality Both to align dot-like pattern or a grid-like light-guiding light guide pattern independent of the orientation of the light irradiation section that can produce a service available, dramatically technology.
  • FIG. 1 is an exploded perspective view of a light emitting device according to the present invention.
  • FIG. 2 is a diagram relating to a main pattern of a back sheet according to the present invention.
  • FIG 3 is an illustration of a light emitting device and a bonding apparatus using the back sheet according to the present invention.
  • FIG. 4 is a perspective view illustrating a slider and a position adjusting unit coupled to a fixing bracket among the light emitting devices according to the present invention.
  • L1, L2 light-guiding pattern
  • Dh high density portion
  • Fixing bracket 50 Display part (display sheet)
  • &quot comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
  • the back sheet or light guide sheet includes a base film or a reflective film (a light guide pattern is formed on the surface thereof).
  • the letters, numerals, and symbols constituting the information section 51 of the display sheet 50 arranged on the light transmitting panel constituting the light emitting device A using the back sheet B for a light emitting device according to the present invention Means any display system for providing various information, information, warnings, etc. that are used or used by the time, as well as newly promised or prescribed ones.
  • the light emitting device A described in the present invention will mainly be described as a billboard such as a billboard or a signboard.
  • the technique of the present invention can be applied to a surface lighting device for a home or office, a decorative lighting device, These various applications are to be construed as falling within the scope of the present invention.
  • the back sheet of the present invention is composed of a base film 10 and light guide patterns 20 formed repeatedly spaced from the base film surface.
  • the base film is preferably a reflective film in particular. It is preferable that the reflective film effectively reflects the light irradiated from the light source to the light guide sheet 10 (the reflection performance is determined by the reflectivity of the mirror reflection) and also functions as a back protective film of the light emitting device. Further, To diffuse the diffused light leaking out of the light guide sheet back to the light guide sheet so as to be changed in a direction perpendicular to the plate perpendicular to the light guide sheet moving in parallel through the light guide sheet to deviate from the light guide sheet. Film can be employed.
  • the base film or the reflective film may have a flexible property for workability and may be made of, for example, polyethylene terephthalate (PET) or polycarbonate (PC).
  • PET polyethylene terephthalate
  • PC polycarbonate
  • each of the patterns is formed by printing a light emission ink mixed with an adhesive
  • the pattern-forming surface of the base film is tacky due to the adhesive
  • the back sheet B is joined to the light projecting panel 30
  • the light emission component of the light emission ink composition for the light guide pattern can be constituted by a general light guide sheet, for example, ceramic particles such as titanium oxide or glass.
  • a general light guide sheet for example, ceramic particles such as titanium oxide or glass.
  • it may be made of acrylic or silicone having the above-mentioned adhesive component, and may be selected from any of urethane type, poly-synthetic resin, urethane vinyl-based synthetic resin, etc. and may be printed in liquid or paste form, (Post-it TM), and it has natural curability or UV curing properties, and is excellent in adhesion between the back sheet and the light-transmitting panel It is preferable that the stability of the state is assured.
  • the back sheet (B) can be produced and sold separately by attaching a release paper to the light guide pattern formation surface.
  • a method of printing a pattern with a light emitting ink on a base film 10, particularly a reflective film, is disclosed in Japanese Utility Model Registration No. 20-0451991 (filed on Jan. 18, 2011) [a reflective sheet manufacturing apparatus provided with a light guiding pattern]
  • a roll type printing technique can be utilized. More preferably, it is preferable to apply a screen printing technique in order to secure the precision of the pattern.
  • the light guide pattern of the back sheet B may be a lattice type (L1, L2) or a dot type (D1, D2, D3).
  • the density of the patterns increases with distance from the light source irradiating part 40s so that the light of the light source exhibits uniform brightness over the entire light emitting device.
  • such a characteristic is more preferable in the case of a dot type light guide pattern, and it is preferable that the density is increased from a low density portion (Dl) to a high density portion (Dh)
  • the number of pattern elements per unit area is gradually increased
  • the first and third dot types D1 and D3 each have a low density portion D1 at one end (the light source irradiating portion 40s side) and a high density portion Dh at the other end,
  • the second dot type D2 has a configuration in which the low density portion D1 is located at both ends (the light source irradiating portion 40s is provided at both ends) and the high density portion Dh is located at the center.
  • the lattice-type light-guiding patterns L1 and L2 are composed of a plurality of pattern elements in which the respective patterns are densely arranged in a rectangular pattern contour 20L. Further, each of the pattern elements of the two grating-type light-guiding patterns L1 and L2 has a triangular or pseudo-triangle (the corner is rounded).
  • the first lattice-shaped light-guiding pattern L1 has a pattern element in which corner portions 21a and side portions 21b are separated from each other.
  • the corner portion 21a has a rectangular pattern contour 20L, and one of the vertexes of the triangle is positioned so as to correspond to the vertex of the corner portion 21a.
  • the first lattice-shaped light-guiding pattern L1 includes two pattern elements gathered to constitute one side portion 21b, and the side portion 21b is formed so as not to touch the bottom sides of the respective pattern elements And is formed in the shape of rhombus gathered in parallel.
  • a plurality of side portions 21b formed in the shape of the rhombus are provided in the rectangular pattern contour 20L.
  • the side portion 21b may have a square shape according to the side length of each pattern element.
  • the side portion 21b is provided in the rectangular pattern contour 20L and each side portion 21b is provided at 12 o'clock and 6 o'clock direction And the side portions 21b in the 9 o'clock direction (transverse direction) are formed in the same shape.
  • the two side portions 21b placed in the horizontal direction have the same shape
  • the two side portions 21b placed in the vertical direction have the same shape, but the shapes of the horizontal direction and the vertical direction are formed differently .
  • the second lattice-type light-guiding pattern L2 includes a pattern element, a part of which serves as a corner portion 23a, 23b.
  • the lattice-like light guiding patterns L1 and L2 have been tested by the inventors of the bladder using the back sheet having the respective lattice-type light guiding patterns, Even if the density of the elements is uniform over the whole without increasing or decreasing, it is shown that the luminance uniformity and high quality characteristics are obtained over the entire light emitting device (A).
  • the back sheet B having such a rectangular pattern contour 20L is arranged in an inclined form with respect to the light source 41, which is superior in luminance quality.
  • the angle of the position of the light source irradiating portion 40s and the arrangement angle of the lattice-like light-guiding patterns L1 and L2 is preferably 20 to 80 degrees, more preferably 30 to 70 degrees.
  • the lattice-type light-guiding patterns L1 and L2 are matched and matched at the junction Bb.
  • the light emitting device (A) uses the back sheet (B), and the base film (10) constituting the back sheet, in particular, the reflective film also serves as a protective film, 10, a transparent acrylic panel suitable for the light-transmitting panel 30, in particular, the light-emitting device A for a signboard is placed on the upper surface of the light-guiding pattern 20,
  • a display sheet 50 (display portion) such as a visual acuity measurement table is stacked and arranged on the upper side of the light projecting panel 30, and a side surface of the light projecting panel 30
  • a light source can be introduced into one side or both sides facing each other).
  • the sectional shape of the light source unit 40 can be adjusted so that the side surfaces of the light source mounting member and the laminated back sheet- And a fixing bracket 43 having a 'C' shape.
  • the display sheet 40 is composed of an information part 51 printed in black to cover the light and a milky light transmitting part 53 corresponding to the part other than the information part.
  • a slider 60 capable of sliding engagement with the bracket 43 and a position adjuster (not shown) connected to the slider 60 to adjust the movement of the LED light source 41 70 may be constructed.
  • the slider 60 may include a pair of rods parallel to the lower end of the slider 60 so that the rod 61 can be moved on the rod 61.
  • the use of the slider 60 allows the user to easily replace the LED light source 41 during use of the light emitting device S, thereby enhancing ease of use.
  • the position adjuster 70 includes a light source support plate 71, a rod holder 72, and a tightening bolt 73.
  • the light source support plate 71 is coupled to the rod holder 72 and the tightening bolt 73 is coupled to the lower end of the light source support plate 71.
  • the tightening bolt 73 When the tightening bolt 73 is turned, It can be separated from the rod 61 so as to fix the position adjusting part 70 or move the fixed position adjusting part 70.
  • the rods 61 may be formed with grooves (not shown) at regular intervals to be engaged with the tightening bolts 73.
  • the light source support plate 71 may be formed of a rectangular plate so as to be coupled with the LED light source 41 and move stably.
  • the four corner portions of the light source support plate 71 are provided with four fastening bolts 73 so that the fastening bolts 73 can be securely and firmly fastened.
  • the fastening bolt 73 may be manually tightened, and the head portion may be formed to be positive or negative so that the fastening bolt 73 can be tightened with a screwdriver (+) or a screwdriver (-).
  • the rod holder 72 is configured to surround the rod 61 so that the light source support plate 71 is not shaken or separated from the slider 60 in the shape of a hole so that movement of the rod 61 is not disturbed do.
  • the use of the position adjusting unit 70 can prevent the use of the unnecessary LDE light source 41 and allow the user to control the number of the LDE light sources 41 to use, It is possible to display an optimal luminance.

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  • 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)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

La présente invention concerne une feuille-support destinée à un dispositif luminescent et un dispositif luminescent l'utilisant, et plus particulièrement une feuille-support destinée à un dispositif luminescent, qui comporte des motifs de guidage de lumière formés de façon répétée et séparée sur la surface d'un film de base, plus particulièrement un film réfléchissant, et formés par impression d'une encre luminescente à laquelle est mélangé un adhésif de façon à présenter une adhérence, et dont le productivité peut être considérablement améliorée car une feuille-support fabriquée peut être fixée à un dispositif luminescent, plus particulièrement un panneau transmettant la lumière formant un affichage (enseigne, tableau d'affichage ou similaire) ou un dispositif d'éclairage de surface, par simple pression; et un dispositif luminescent l'utilisant. La feuille-support pour dispositif luminescent selon la présente invention comporte: un film de base; et des motifs de guidage de lumière formés de façon répétée et séparée sur la surface du film de base, chacun des motifs étant formé par impression d'une encre luminescente à laquelle est mélangé un adhésif de façon à présenter une adhérence.
PCT/KR2013/011650 2012-12-17 2013-12-16 Feuille-support pour dispositif luminescent et dispositif luminescent l'utilisant WO2014098430A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2012-0147177 2012-12-17
KR1020120147177A KR101269666B1 (ko) 2012-12-17 2012-12-17 발광장치용 백시트 및 이를 이용한 발광장치

Publications (1)

Publication Number Publication Date
WO2014098430A1 true WO2014098430A1 (fr) 2014-06-26

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PCT/KR2013/011650 WO2014098430A1 (fr) 2012-12-17 2013-12-16 Feuille-support pour dispositif luminescent et dispositif luminescent l'utilisant

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KR (1) KR101269666B1 (fr)
WO (1) WO2014098430A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020100346A1 (fr) * 2018-11-16 2020-05-22 基正 厳 Système de recherche de valise et étiquette
US11934000B2 (en) * 2021-09-16 2024-03-19 Ez Group Inc. Light emitting sheet and road sign using same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102295982B1 (ko) * 2021-02-25 2021-09-01 이지그룹 주식회사 발광장치용 롤러블 백시트 및 이를 이용한 발광장치
EP4071527A4 (fr) 2021-02-25 2023-11-29 Ez Group Inc. Feuille arrière enroulable pour dispositif électroluminescent, et dispositif électroluminescent l'utilisant

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001357709A (ja) * 2000-06-16 2001-12-26 Kuraray Co Ltd 面光源素子およびその製造方法
KR20060061621A (ko) * 2004-12-02 2006-06-08 엘지.필립스 엘시디 주식회사 패턴형성용 전사필름, 그를 이용한 패턴 형성방법 및액정표시소자 제조방법
KR20100010318U (ko) * 2009-04-13 2010-10-21 주식회사 케이앤씨엘이디 빛 유도 패턴이 구비된 반사시트
KR101144894B1 (ko) * 2011-08-12 2012-05-14 (주)샤다이 빛 유도패턴을 갖는 반사시트 제조방법 및 이러한 반사시트가 부착된 도광판 제조방법 그리고, 그러한 반사시트 제조 시스템 및 그러한 반사시트가 부착된 도광판 제조 시스템.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001357709A (ja) * 2000-06-16 2001-12-26 Kuraray Co Ltd 面光源素子およびその製造方法
KR20060061621A (ko) * 2004-12-02 2006-06-08 엘지.필립스 엘시디 주식회사 패턴형성용 전사필름, 그를 이용한 패턴 형성방법 및액정표시소자 제조방법
KR20100010318U (ko) * 2009-04-13 2010-10-21 주식회사 케이앤씨엘이디 빛 유도 패턴이 구비된 반사시트
KR101144894B1 (ko) * 2011-08-12 2012-05-14 (주)샤다이 빛 유도패턴을 갖는 반사시트 제조방법 및 이러한 반사시트가 부착된 도광판 제조방법 그리고, 그러한 반사시트 제조 시스템 및 그러한 반사시트가 부착된 도광판 제조 시스템.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020100346A1 (fr) * 2018-11-16 2020-05-22 基正 厳 Système de recherche de valise et étiquette
US11990021B2 (en) 2018-11-16 2024-05-21 Gi-Jeoung EUM Travel suitcase search system and tag
US11934000B2 (en) * 2021-09-16 2024-03-19 Ez Group Inc. Light emitting sheet and road sign using same

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