KR100693925B1 - Light-conductive board and rear light module using the light-conductive board - Google Patents

Light-conductive board and rear light module using the light-conductive board Download PDF

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KR100693925B1
KR100693925B1 KR1020040096802A KR20040096802A KR100693925B1 KR 100693925 B1 KR100693925 B1 KR 100693925B1 KR 1020040096802 A KR1020040096802 A KR 1020040096802A KR 20040096802 A KR20040096802 A KR 20040096802A KR 100693925 B1 KR100693925 B1 KR 100693925B1
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South Korea
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light
conducting plate
module
light conducting
entrance
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KR1020040096802A
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Korean (ko)
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KR20060057755A (en
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첸영-젠
호우페이-펜
트셍쿠안-링
조우엔조산
왕잉-푸
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레디언트 옵토-일렉트로닉스 코포레이션
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    • 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
    • G02B6/0018—Redirecting means on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • 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
    • G02B6/0073—Light emitting diode [LED]

Abstract

본 발명은 광 전도판 및 광 전도판을 이용하는 리어 라이트 모듈에 관한 것이다. 광 전도판은 광 방출면, 반사면, 광 입구면 및 광 전도판의 반사면의 외부에 부착되는 반사판을 가지며, 광학 필름은 광 전도판의 광 방출면의 외부에 설치되는 발산 렌즈 및 수렴 렌즈를 포함하고, 램프 반사기는 LED 램프원을 둘러싸고, 광 방출면 또는 반사면의 하나의 면에 인접하는 LED 램프원의 광 입구 오목 부위의 외주 변부에 해당하는 광 전도판의 광 입구면은 돌출 부위로 형성된다.The present invention relates to a light conducting plate and a rear light module using the light conducting plate. The light conducting plate has a light emitting surface, a reflecting surface, a light entrance surface and a reflecting plate attached to the outside of the reflecting surface of the light conducting plate, and the optical film is a diverging lens and a converging lens installed outside of the light emitting surface of the light conducting plate. Wherein the lamp reflector surrounds the LED lamp source, and the light entrance surface of the light conducting plate corresponding to the outer periphery of the light entrance concave portion of the LED lamp source adjacent to the light emitting surface or one surface of the reflective surface is a protruding portion. Is formed.

광 전도판, 리어 라이트 모듈, 광학 필름, 광 방출면, 반사면, 발산렌즈, 수렴렌즈Light conducting plate, rear light module, optical film, light emitting surface, reflecting surface, diverging lens, converging lens

Description

광 전도판 및 광 전도판을 이용하는 리어 라이트 모듈{Light-conductive board and rear light module using the light-conductive board}Light-conductive board and rear light module using the light-conductive board}

도 1 은 공지기술의 리어 라이트 모듈의 분해 사시도.1 is an exploded perspective view of a rear light module of the prior art;

도 2 는 공지기술의 리어 라이트 모듈의 적용을 보여주는 개략도.Figure 2 is a schematic diagram showing the application of the rear light module of the prior art.

도 3 은 공지기술의 다른 리어 라이트 모듈의 분해 사시도.3 is an exploded perspective view of another rear light module of the prior art;

도 4 는 공지기술의 다른 리어 라이트 모듈의 적용을 보여주는 개략도.4 is a schematic view showing the application of another rear light module of the prior art;

도 5 는 공지기술의 또다른 리어 라이트 모듈의 분해 사시도.5 is an exploded perspective view of another rear light module of the prior art;

도 6 은 공지기술의 또다른 리어 라이트 모듈의 적용을 보여주는 개략도.6 is a schematic view showing the application of another rear light module of the prior art.

도 7 은 본 발명의 리어 라이트 모듈의 분해 사시도.Figure 7 is an exploded perspective view of the rear light module of the present invention.

도 8 은 본 발명의 리어 라이트 모듈의 부분 사시도.8 is a partial perspective view of the rear light module of the present invention.

도 9 는 본 발명의 리어 라이트 모듈의 적용을 보여주는 개략도.9 is a schematic diagram showing an application of the rear light module of the present invention.

도 10 은 본 발명의 리어 라이트 모듈의 개략도.10 is a schematic view of a rear light module of the present invention.

도 11 은 본 발명의 리어 라이트 모듈의 바람직한 실시예의 개략도.11 is a schematic view of a preferred embodiment of the rear light module of the present invention.

도 12 는 본 발명의 리어 라이트 모듈의 다른 바람직한 실시예의 개략도.12 is a schematic view of another preferred embodiment of the rear light module of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of Symbols for Main Parts of Drawings>

4 : 리어 라이트 모듈 41 : 광 전도판4: rear light module 41: light conducting plate

42 : 광학 필름 43 : LED 램프원42: optical film 43: LED lamp source

44 : 반사판 411 : 광 방출면
412 : 반사면 413 : 광 전도점44: reflector 411: light emitting surface
412: Reflective surface 413: Light conduction point

414 : 광 입구면 421 : 발산 렌즈
422 : 수렴 렌즈 431 : 램프 반사기
4111 : 돌출 부위 4112 : 평탄 부위
4121 : 돌출 부위 4141 : 오목 부위414: light entrance surface 421: diverging lens
422 converging lens 431 lamp reflector
4111: protruding portion 4112: flat portion
4121: protruding portion 4141: concave portion

본 발명은 광 전도판(light-conductive board) 및 리어 라이트 모듈(rear light module)에 관한 것으로서, 특히 전체 모듈의 광 출력 효율을 향상시키기 위하여 균일하고 높은 색상 광원이 출력되도록 리어 라이트 모듈의 적용을 용이하게 하는 돌출 부위가 설치된 광 입구 오목 부위의 외주 변부를 갖는 광 전도판에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-conductive board and a rear light module, and more particularly to the application of the rear light module to output a uniform and high color light source in order to improve the light output efficiency of the entire module. It relates to a light conducting plate having an outer periphery of the light entrance concave portion provided with a protruding portion for facilitating.

대부분의 LCD는 표시 패널 및 리어 라이트 모듈로 구성되어 있다. 리어 라이트 모듈은 광원인 필수 부재이다. 따라서 리어 라이트 모듈은 LCD 내에서 중요한 부재이다.Most LCDs consist of a display panel and a rear light module. The rear light module is an essential member which is a light source. Therefore, the rear light module is an important member in the LCD.

도 1 은 광 전도판(11), 광학 필름(12) 및 LED 램프원(13)을 포함하는 공지 기술의 리어 라이트 모듈(1)을 나타낸 것이다. 도 2 는 리어라이트 모듈(1)의 적용을 나타낸 것이다. LED 램프원(13)의 광원은 반사기(131)에 의하여 영향을 받으며, 광원은 광 입구면(114)으로 들어가게 된다. 광 전도점(113) 및 반사판(14)에 의하여, 광원은 빛으로서 반사된다.1 shows a rear light module 1 of the known art, which includes a light conducting plate 11, an optical film 12 and an LED lamp source 13. 2 shows the application of the rear light module 1. The light source of the LED lamp source 13 is affected by the reflector 131, and the light source enters the light entrance surface 114. By the light conduction point 113 and the reflecting plate 14, the light source is reflected as light.

광 전도판(11)의 광 입구면(114)이 거울 같은 구조라는 사실로 인하여, LED 램프원(13)의 광원이 광 전도판(11)에 들어가면, 광 반사각이 좁다(약 120°). 따라서 회색 부위(15)가 넓어지며, 모듈(1)의 색상은 균일하지 않다.Due to the fact that the light entrance face 114 of the light conducting plate 11 is a mirror-like structure, when the light source of the LED lamp source 13 enters the light conducting plate 11, the light reflection angle is narrow (about 120 °). Thus, the gray area 15 is widened, and the color of the module 1 is not uniform.

도 3 은 광전도판(21), 광학 필름(22) 및 LED 램프원(23)을 포함하는 리어 라이트 모듈(2)을 나타낸 것이다. 광 입구 부위(2141)의 톱니같은 경사면은 보다 양호한 굴절을 제공하므로, 광원은 분산 효과를 발생하고, 광 전도판(21)으로 들어가는 LED 램프원(23)의 광원의 각도는 더 넓고, 굴절은 120°이상이다. 따라서, 회색 부위(25)는 보다 많은 광원을 얻는다.3 shows a rear light module 2 including a photoconductor plate 21, an optical film 22 and an LED lamp source 23. Since the serrated inclined surface of the light entrance portion 2141 provides a better refraction, the light source produces a scattering effect, the angle of the light source of the LED lamp source 23 entering the light conducting plate 21 is wider, and the refraction It is more than 120 degrees. Thus, the gray area 25 obtains more light sources.

도 4 는 리어 라이트 모듈(2)의 공지 기술의 다른 광 전도판(21)의 적용을 나타낸 것이다. 굴절각은 한계가 있으며, 회색 부위(25)의 문제가 극복되지 않았다. 도 5 는 광 전도판(31), 광학 필름(32) 및 LED 램프원(33)을 포함하는 다른 리어 라이트 모듈(3)을 나타낸 것이다. 광 전도판(31)의 광 입구면은 광 입구 오목 부위(3141)이다. 도 6 에 도시되어 있는 바와같이 적용되는 경우, 광원은 광 전도판(31)의 광 입구면(314)에 들어가게 된다. 광 입구면(314)의 광 입구 오목 부위(3141)는 광원을 굴절시키며, 이는 회색 부위(35)를 현저하게 감소시키게 된다. 이 방법은 회색 부위(35)의 형성을 충분히 향상시킬 수 없다. 따라서, 상술한 결점들을 해결하고자 하는 것이 본 발명의 목적이다.4 shows the application of another light conducting plate 21 of the known art of the rear light module 2. The angle of refraction is limited and the problem of the gray area 25 has not been overcome. 5 shows another rear light module 3 comprising a light conducting plate 31, an optical film 32 and an LED lamp source 33. The light entrance face of the light conducting plate 31 is a light entrance recess portion 3141. When applied as shown in FIG. 6, the light source enters the light entrance face 314 of the light conducting plate 31. The light entrance concave portion 3141 of the light entrance surface 314 refracts the light source, which significantly reduces the gray portion 35. This method cannot sufficiently improve the formation of the gray portion 35. Therefore, it is an object of the present invention to solve the above-mentioned drawbacks.

본 발명은 상술한 종래 기술이 갖고 있는 문제점을 해결하고자 안출된 것으로서, 본 발명의 목적은 광 전도판 및 상기 광 전도판을 이용하는 리어 라이트 모듈을 제공하는데 있으며, 이 경우 광 전도판은 광 방출면, 광 반사면 및 광 입구면을 포함하며, 광 입구면의 오목 부위의 외주 변부는 하나 이상의 인접 광 방출면을 갖는 돌출부위 또는 광 반사면 부위의 하나의 면을 형성하는 것을 특징으로 한다.The present invention has been made to solve the problems of the prior art described above, an object of the present invention to provide a rear light module using the light conducting plate and the light conducting plate, in which case the light conducting plate is a light emitting surface And a light reflecting surface and a light entrance surface, wherein the outer periphery of the concave portion of the light entrance surface forms one surface of the projecting portion or the light reflecting surface portion having at least one adjacent light emitting surface.

도 7 은 광 전도판(41), 광학 필름(42), 및 LED 램프원(43)을 포함하는 리어 라이트 모듈(4)을 나타낸 것으로서, 광 전도판(41)의 광 방출면(411)은 하나 이상의 발산 렌즈(421) 및 하나의 수렴 렌즈(422)를 갖는 광학 필름(42)이 설치되어 있다. 광 전도판(41)의 반사면(412)은 다수의 광 전도점(413)이 제공되어 있고, 반사판(44)이 그의 외부에 부착되고, 동시에 광 전도판(41)의 일측에는 광 입구면(414)이 제공되어 있다. 광 전도판(41)의 외측에는 LED 램프원(43)이 설치되어 있다. LED 램프원(43)은 램프 반사기(431)에 의하여 둘러싸여 있다.FIG. 7 shows a rear light module 4 comprising a light conducting plate 41, an optical film 42, and an LED lamp source 43, wherein the light emitting surface 411 of the light conducting plate 41 is shown in FIG. An optical film 42 having one or more diverging lenses 421 and one converging lens 422 is provided. The reflecting surface 412 of the light conducting plate 41 is provided with a plurality of light conducting points 413, the reflecting plate 44 is attached to the outside thereof, and at the same time a light inlet surface on one side of the light conducting plate 41. 414 is provided. The LED lamp source 43 is provided outside the photoconductive plate 41. The LED lamp source 43 is surrounded by the lamp reflector 431.

도 8 과 관련하여, LED 램프원(43)에 해당하는 광 입구면(414)은 오목한 아치면인 광 입구 오목 부위(4141)이며, 광 방출면(411)은 돌출 부위(4111)이다. 평탄 부위(4112)가 광 입구 오목 부위(4141)와 돌출 부위(4111) 사이에 형성되어 있다.With reference to FIG. 8, the light entrance face 414 corresponding to the LED lamp source 43 is a light entrance recessed part 4141 which is a concave arch surface, and the light emitting surface 411 is a protruding part 4111. A flat portion 4112 is formed between the light entrance concave portion 4141 and the projecting portion 4111.

도 9 에 도시되어 있는 바와 같이, LED 램프원(43)이 광원 출력에 있을때, LED 램프원(43)의 광원은 램프 반사기(431)에 의하여 반사되고, 따라서 광원은 광 입구 오목 부위(4141) 속으로 방출하게 된다. 광원이 광 입구 오목 부위(4141)에 들어가면, 램프원(43)의 광원은 넓어진 굴절이며, 돌출 부위(4111)는 광원의 손실을 피하도록 방출된 광원이 반사되게 하고, 광원의 반사각은 넓어진다. 광 전도판(41)의 저부 부위에서 광 전도점(413)은 간섭을 상쇄하도록 "네트-포인트(net-point)" 분포이다. 따라서, 광원은 리어 라이트 모듈에 균일하게 분포된 빛을 발생한다.As shown in Fig. 9, when the LED lamp source 43 is at the light source output, the light source of the LED lamp source 43 is reflected by the lamp reflector 431, so that the light source is a light inlet recess 4141. Release into the stomach. When the light source enters the light entrance concave portion 4141, the light source of the lamp source 43 is widened refraction, and the protruding portion 4111 causes the emitted light source to be reflected to avoid the loss of the light source, and the reflection angle of the light source is widened. . The light conduction point 413 at the bottom of the light conduction plate 41 is a "net-point" distribution to cancel the interference. Therefore, the light source generates light uniformly distributed in the rear light module.

도 10 에 도시되어 있는 바와같이, 평탄 부위(4112)는 돌출 부위(4111)의 첨예도를 효과적으로 피할 수 있게 돌출 부위의 외주 변부에 형성되어 있다.As shown in FIG. 10, the flat portion 4112 is formed at the outer periphery of the protruding portion so as to effectively avoid the sharpness of the protruding portion 4111.

도 11 에 도시되어 있는 바와같이, 반사면(412)의 위치는 광 입구 오목 부위(4141)의 외주 변부에 돌출 부위(4121)를 설치할 수 있으며, 평탄 부위(4112)가 돌출 부위(4121)와 광 입구 오목 부위(4141)의 교차점에 있다.As shown in FIG. 11, the position of the reflective surface 412 may be provided at the outer periphery of the light entrance concave portion 4141, and the flat portion 4112 may be formed at the outer periphery of the light entrance concave portion 4141. At the intersection of the light entrance recesses 4141.

반사면(412)에서 반사된 광원은 또한 다른 반사작용을 생성하도록 넓은 반사를 갖는다. 도 12 와 관련하여, 돌출 부위(4111, 4121)가 광 방출면(411) 및 광 입구면(414)에 인접하여 제공되어 있다. 따라서 LED 램프원(43)의 광원의 반사각은 더욱 굴절될 수 있다. 이는 광원의 손실을 피하게 하며, 광원의 방출각은 더 넓을 수 있다.The light source reflected at the reflecting surface 412 also has a broad reflection to create another reflecting action. In connection with FIG. 12, protruding portions 4111, 4121 are provided adjacent to the light emitting surface 411 and the light entrance surface 414. Therefore, the reflection angle of the light source of the LED lamp source 43 can be further refracted. This avoids the loss of the light source, and the emission angle of the light source can be wider.

본 발명은 광 전도판(41)이 균일하고 높은 색상 광원이 출력되도록 리어 라이트 모듈(4)의 적용을 용이하게 하는 돌출 부위(4111)가 설치된 광 입구 오목 부위(4141)의 외주 변부를 갖고 있어 전체 모듈의 광 출력 효율을 향상시킬 수 있다.The present invention has an outer periphery of the light entrance concave portion 4141 provided with a protruding portion 4111 for facilitating application of the rear light module 4 so that the light conducting plate 41 outputs a uniform and high color light source. The light output efficiency of the whole module can be improved.

Claims (6)

광 전도판(41)을 이용하는 리어 라이트 모듈(4)에 있어서, 광 전도판(41)은 광 방출면(411)과 반사면(412) 및 광 입구면(414)으로 형성되고 광 입구면(414)에는 간격을 두고 하나 이상의 오목 부위(4141)와 외주변부는 돌출 부위(4111)를 각각 형성하되 오목 부위(4141)의 대향면은 LED 램프원(43)이 있는 램프 반사기(431)를 설치하여서 됨을 특징으로 하는 광 전도판 및 광 전도판을 이용하는 리어 라이트 모듈.In the rear light module 4 using the light conducting plate 41, the light conducting plate 41 is formed of the light emitting surface 411, the reflecting surface 412, and the light entrance surface 414, and the light entrance surface ( At least one concave portion 4141 and an outer periphery form a protruding portion 4111 at intervals, and the opposite surface of the concave portion 4141 is provided with a lamp reflector 431 having an LED lamp source 43. A rear light module using a light conducting plate and a light conducting plate, characterized in that. 제 1 항에 있어서, 광 입구면(414)에 형성된 오목 부위(4141)의 외주변부를 따라 돌출 부위(4111)가 광 방출면(411)에 인접하여 형성됨을 특징으로 하는 광 전도판.The light conducting plate according to claim 1, wherein a protruding portion (4111) is formed adjacent to the light emitting surface (411) along the outer periphery of the concave portion (4141) formed on the light entrance surface (414). 제 2 항에 있어서, 돌출 부위(4111) 및 광 입구 오목 부위(4141)의 교차점은 평탄 부위(4112)임을 특징으로 하는 광 전도판.3. The light conducting plate according to claim 2, wherein the intersection of the protruding portion (4111) and the light entrance concave portion (4141) is a flat portion (4112). 삭제delete 삭제delete 삭제delete
KR1020040096802A 2004-11-24 2004-11-24 Light-conductive board and rear light module using the light-conductive board KR100693925B1 (en)

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KR101043000B1 (en) 2011-01-11 2011-06-21 주식회사 우리옵토 Method for producing a thin light guide film having a lens in the light-receiving portion and the thin light guide film

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KR101043000B1 (en) 2011-01-11 2011-06-21 주식회사 우리옵토 Method for producing a thin light guide film having a lens in the light-receiving portion and the thin light guide film

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