KR20050035582A - Light guide plate which is wholly formed with horizontal prism and vertical prism - Google Patents
Light guide plate which is wholly formed with horizontal prism and vertical prism Download PDFInfo
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- KR20050035582A KR20050035582A KR1020030071003A KR20030071003A KR20050035582A KR 20050035582 A KR20050035582 A KR 20050035582A KR 1020030071003 A KR1020030071003 A KR 1020030071003A KR 20030071003 A KR20030071003 A KR 20030071003A KR 20050035582 A KR20050035582 A KR 20050035582A
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- guide plate
- prism
- light guide
- light
- horizontal
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Classifications
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- 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
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
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- 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
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
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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
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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
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
본 발명은 가로방향과 세로방향의 프리즘이 일체로 형성된 도광판에 관한 것으로서, 이러한 도광판은 가로방향으로 프리즘이 형성된 가로프리즘부재;와 세로방향으로 프리즘이 형성된 세로프리즘부재;가 교대로 반복하여 판재의 일측면에 일체로 형성되는 것을 특징으로 한다.The present invention relates to a light guide plate in which a horizontal prism is formed integrally with a horizontal prism, and the light guide plate includes a horizontal prism member having a prism in a horizontal direction; and a vertical prism member having a prism in a vertical direction; Characterized in that integrally formed on one side.
이와 같은 고안에 의해 광원에서 발산되는 빛이 상기 가로프리즘, 세로프리즘 및 프리즘의 경사진 측면을 통과하면서 빛이 여러 방향으로 굴절되므로서 빛이 집중하여 조사되지 않고, 액정표시창의 전체면에 균일하게 분산하여 조사되며, 종래의 2개의 층으로 이루어진 도광판이 하나의 층으로 이루어지므로 박판으로 형성할 수 있게 된다.The light emitted from the light source passes through the horizontal prism, the vertical prism, and the inclined sides of the prism, and thus the light is refracted in various directions so that the light is not concentrated and irradiated, and is uniformly applied to the entire surface of the liquid crystal display window. It is distributed and irradiated, and the conventional light guide plate having two layers is formed of one layer, so that the thin plate can be formed.
Description
본 발명은 액정표시장치(LCD)에 적용되는 도광판에 관한 것으로, 특히 빛의 분포효율을 증대시키면서도 백라이트 유닛을 슬림(Slim)화 시킬 수 있는 도광판에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light guide plate applied to a liquid crystal display (LCD), and more particularly, to a light guide plate that can slim a backlight unit while increasing light distribution efficiency.
일반적으로, 백라이트 유닛은 액정표시장치(TFT-LCD)에 있어서 반드시 필요한 것으로서, 이러한 백라이트 유닛은 액정표시장치의 패널 전체에 고르게 빛을 전달하는 조광장치로 사용되며, 상기 액정표시장치의 패널에서는 투과되는 빛의 양을 일정하게 조절하여 화상을 표시한다.In general, the backlight unit is necessary for a liquid crystal display (TFT-LCD), and the backlight unit is used as a dimming device to evenly transmit light to the entire panel of the liquid crystal display, and the panel of the liquid crystal display is transmissive. Display the image by adjusting the amount of light to be constant.
CRT, PDP, FED와는 달리 액정표시장치(LCD)에 의한 표시는 그 자체가 비발광성이기 때문에 빛이 없는 곳에서는 사용이 불가능하다. 이러한 단점을 보완하여 어두운 곳에서의 사용이 가능하게 할 목적으로 정보표시면을 균일하게 면조사하는 장치가 백라이트이다.Unlike CRTs, PDPs, and FEDs, the display by a liquid crystal display (LCD) is not light-emitting because it is non-luminous itself. In order to compensate for these disadvantages and to enable the use in a dark place, a device for uniformly irradiating the information display surface is a backlight.
상기 백라이트는 노트북, 모니터용 TFT-LCD의 광원이기 때문에 최소의 전력으로 최대한 밝은 빛을 내야하고, 또한 형광등과 같이 광원에서 발산되는 빛을 LCD의 표면 구석구석까지 동일한 밝기로 유지시켜주는 역할을 한다. 이러한 백라이트 유닛의 구성은 형광램프, 빛을 반사시켜 주는 반사판, 도광판, 확산판, 등으로 구성된다.Since the backlight is a light source of a TFT-LCD for notebooks and monitors, it is required to emit the brightest light with the minimum power. Also, the backlight keeps the light emitted from the light source, such as fluorescent light, at the same brightness to every corner of the LCD. . The backlight unit includes a fluorescent lamp, a reflector for reflecting light, a light guide plate, a diffuser plate, and the like.
상기 도광판은 양측면에 광원으로 사용되는 형광등에 발산되는 빛을 액정표시장치(LCD)의 전체면에 균일하게 빛을 발산하는 역할을 하게 된다.The light guide plate serves to uniformly radiate the light emitted from the fluorescent lamp used as the light source on both sides of the light guide plate on the entire surface of the LCD.
도5a와 도5b에 도시된 종래기술에 따른 도광판(90)은 가로로 프리즘이 형성된 가로판(93)과 세로로 프리즘이 형성된 세로판(96)을 서로 적층시키는 구성이다. 이와 같은 구성에 의하여 양측면에 장착된 형광등에서 발산되는 빛은 액정표시장치의 전체면에 고르게 투과하게 된다.The light guide plate 90 according to the related art shown in FIGS. 5A and 5B is configured to stack the horizontal plate 93 on which the prism is formed horizontally and the vertical plate 96 on which the prism is formed vertically. By such a configuration, the light emitted from the fluorescent lamps mounted on both sides is evenly transmitted to the entire surface of the liquid crystal display device.
그러나 종래기술에 따른 도광판은 가로판과 세로판을 적층시키는 구성이므로 박판(薄板)으로 슬림화시키는데 한계가 있다는 문제점이 있다. 즉 액정표시장치는 박판으로 제조할 수 있다는 것이 큰 장점중의 하나이고, 각 기업에서는 박판으로 제조하기 위하여 막대한 비용과 시간을 투자하는 경향이 있으나 상기 도광판이 이중으로 장착되기 때문에 슬림화시키는데 장애요인이 되고 있다.However, the light guide plate according to the prior art has a problem in that there is a limit in slimming the thin plate because it is configured to stack the horizontal plate and the vertical plate. That is, one of the great advantages of the liquid crystal display device is that it can be manufactured in a thin plate, and each company tends to invest enormous cost and time to manufacture a thin plate, but since the light guide plate is dually mounted, there are obstacles to slimming. It is becoming.
따라서, 본 발명은 상기 문제점을 해결하기 위하여 창안한 것으로서, 본 발명의 목적은 광원에서 발산되는 빛이 반사판과 도광판을 투과하면서 전체적인 면에 고르게 빛이 분산될 수 있도록 하고, 또한 슬림화하여 박판으로 액정표시장치를 제조할 수 있도록 하는 도광판을 제공하는데 있다. Therefore, the present invention was devised to solve the above problems, and an object of the present invention is to allow the light emitted from the light source to pass through the reflecting plate and the light guide plate so that the light can be evenly distributed on the whole surface, and also slimmed down to liquid crystal in thin plate. The present invention provides a light guide plate capable of manufacturing a display device.
이러한 상기 목적은 본 발명에 의하여 달성되며, 본 발명의 일면에 따라 빛을 굴절시켜서 전체면에 빛의 분포효율을 증대시키는 가로방향과 세로방향의 프리즘이 일체로 형성된 도광판은, 가로방향으로 형성된 가로프리즘부재;와 세로방향으로 형성된 세로프리즘부재;가 교대로 반복하여 일측면에 형성되는 것을 특징으로 한다,The above object is achieved by the present invention, the light guide plate which is integrally formed in the transverse direction and the longitudinal prism to refract light in accordance with one aspect of the present invention to increase the distribution efficiency of the light on the entire surface, horizontally formed A prism member; and a vertical prism member formed in a longitudinal direction; are alternately formed on one side,
본 발명에 있어서, 상기 가로프리즘부재는 단면이 삼각형으로 이루어지는 가로프리즘이 2개 형성되고, 상기 세로프리즘부재는 단면이 삼각형으로 이루어지는 세로프리즘이 2개 형성되는 것을 특징으로 한다.In the present invention, the horizontal prism member is formed with two horizontal prisms having a triangular cross section, and the vertical prism member is characterized in that two longitudinal prisms having a triangular cross section are formed.
본 발명에 있어서, 상기 삼각형은 이등변 삼각형이고, 상기 삼각형의 내각 중에서 하나의 각은 50°로 이루어지는 것을 특징으로 한다.In the present invention, the triangle is an isosceles triangle, one of the angles of the inner angle of the triangle is characterized in that consisting of 50 °.
이하, 첨부한 도면을 참조하여 본 발명의 바람직한 실시예를 상술하며, 도면 전체를 통하여 동일한 부분에는 동일한 도면부호를 사용하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and like reference numerals designate like parts throughout the drawings.
도1은 본 발명의 일실시예에 따른 도광판의 사시도이고, 도2는 도1의 선 A-A'를 따라 취한 단면도이다.1 is a perspective view of a light guide plate according to an exemplary embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line A-A 'of FIG.
도면에 도시된 바와 같이, 도면 부호10으로 도시한 본 발명에 따른 도광판은 빛을 투과시키는 투명한 재질로 평판형상으로 제작되는데, 일측면에는 가로프리즘부재(110)와 세로프리즘부재(120)가 교번되면서 반복하여 형성된다. 상기 가로프리즘부재(110)와 세로프리즘부재(120)는 분리된 형태가 아니라 일체로 형성된 것으로서, 본 발명에 따른 도광판(10)을 설명하기 위하여 구분하였다.As shown in the figure, the light guide plate according to the present invention shown by the reference numeral 10 is made of a transparent material that transmits light in the shape of a plate, one side of the horizontal prism member 110 and the vertical prism member 120 alternately It is formed repeatedly. The horizontal prism member 110 and the vertical prism member 120 are formed in one body, not in a separated form, and are divided to describe the light guide plate 10 according to the present invention.
도3a에 도시된 상기 가로프리즘부재(110)와 세로프리즘부재(120)는 빛을 굴절시키는 프리즘이 2개씩 형성되어 있다. 즉 상기 가로프리즘부재(110)에는 가로프리즘(115)이 2개가 인접하게 형성되어 있고, 상기 세로프리즘부재(120)에도 2개의 세로프리즘(125)이 인접되어 형성된다. 그리고 상기 가로프리즘부재(110)와 세로프리즘부재(120)는 정면에서 바라보았을 때, 가로길이와 세로의 길이가 동일한 정사각형으로 구성되어 있어서, 서로 밀착하여서 연결될 수 있도록 한다. 만약에 상기 가로프리즘부재(110)와 세로프리즘부재(120)가 정사각형이 아닌 직사각형의 형상으로 이루어지면 서로 밀착하여서 연결할 수 없어서 빈공간이 형성될 수도 있게 된다.이와 같이 빈공간이 형성되는 경우에는 빛이 빈공간을 굴절없이 통과하게 되어 도광판(10)으로서의 역할을 기대할 수 없게 된다.The horizontal prism member 110 and the vertical prism member 120 illustrated in FIG. 3A have two prisms for refracting light. That is, two horizontal prisms 115 are formed adjacent to the horizontal prism member 110, and two vertical prisms 125 are formed adjacent to the vertical prism member 120. When the horizontal prism member 110 and the vertical prism member 120 are viewed from the front, the horizontal prism member 110 and the vertical prism member 120 are configured to have the same square length and width, so that they can be connected in close contact with each other. If the horizontal prism member 110 and the vertical prism member 120 has a rectangular shape instead of a square shape, the horizontal prism member 110 and the vertical prism member 120 may not be connected in close contact with each other, so that an empty space may be formed. Since light passes through the empty space without refraction, it cannot be expected to serve as the light guide plate 10.
그리고 상기 프리즘(115,125)의 측면은 수직으로 형성되는 것이 아니라 상부로 이동할수록 내측으로 기울게 형성하는 것이 바람직하다. 즉 삼각형으로 이루어진 측면을 경사지게 형성하므로서 빛을 또 다른 방향으로 굴절시키게 되고, 이와 같이 여러 방향으로 빛을 굴절시킴으로서 전체면에 균일한 빛을 투과할 수 있게 된다.(도3a 참조) 또한 상기 프리즘(115,125)의 삼각형은 이등변 삼각형으로 형성되고, 굴절되는 빛이 전체면에 균일하게 조사되도록 하기 위하여 상기 삼각형의 꼭지각은 40도에서 60도사이로 형성되는 것이 바람직하다.The sides of the prisms 115 and 125 are not formed vertically, but are formed to be inclined inward as they move upward. In other words, by forming the side of the triangle to be inclined to bend the light in another direction, by refracting the light in several directions as described above it is possible to transmit a uniform light through the entire surface (see Fig. 3a) Also, the prism ( The triangle of 115 and 125 is formed as an isosceles triangle, and in order for the refracted light to be uniformly irradiated on the entire surface, the vertex of the triangle is preferably formed between 40 and 60 degrees.
도4는 본 발명에 따른 상기 도광판(10)이 액정표시장치에 장착된 상태의 사용상태도이다. 도면에 도시된 바와 같이 상기 도광판(10)의 양측면에는 빛을 발광하는 형광등(20)이 장착되고, 상기 도광판(10)의 후면에는 빛을 반사하는 반사판(30)이 구비된다. 그리고 상기 도광판(10)의 전면에는 빛을 확산하는 확산판(40)과 액정표시장치(50)와 이를 보호하는 보호시트(60)가 순차적으로 결합하여 조립되게 된다. 따라서 상기 형광등(20)에서 발산되는 빛은 상기 도광판(10)의 측면과 상기 반사판(30)에서 반사되는 빛을 상기 가로프리즘(115)과 세로프리즘(125)에 의하여 굴절되면서 상기 액정표시창(50)의 전체면에 균일하게 조사하게 된다.4 is a state diagram in which the light guide plate 10 according to the present invention is mounted on a liquid crystal display. As shown in the drawing, fluorescent light emitting diodes 20 for emitting light are mounted on both side surfaces of the light guide plate 10, and reflecting plates 30 for reflecting light are provided on the rear surface of the light guide plate 10. In addition, a diffusion plate 40 for diffusing light, a liquid crystal display device 50, and a protective sheet 60 protecting the light guide plate 10 may be sequentially assembled on the front surface of the light guide plate 10. Accordingly, the light emitted from the fluorescent lamp 20 is refracted by the horizontal prism 115 and the vertical prism 125 to reflect the light reflected from the side surface of the light guide plate 10 and the reflector 30 and the liquid crystal display 50. Irradiate uniformly over the entire surface of).
그리고, 본 발명에 의한 상기 도광판(10)은 액정표시장치에만 적용되는 것이 아니라, 빛을 반사시켜서 사용되는 광고판에도 사용할 수도 있다.In addition, the light guide plate 10 according to the present invention is not only applied to a liquid crystal display device, but may also be used for an advertisement board used by reflecting light.
도3b에는 다른 실시예를 도시하였는데, 일실시예에서의 상기 가로프리즘부재(110)와 상기 세로프리즘부재(120)에는 2개씩의 프리즘이 형성되어 있으나, 다른 실시예에서는 3개가 형성되어 있다. 즉 본 발명에서 사용되는 상기 도광판(10)의 상기 가로프리즘부재(110)와 상기 세로프리즘부재(120)에는 복수의 프리즘이 형성될 수 있다.3B illustrates another embodiment, two prisms are formed in the horizontal prism member 110 and the vertical prism member 120 in one embodiment, but three are formed in another embodiment. That is, a plurality of prisms may be formed on the horizontal prism member 110 and the vertical prism member 120 of the light guide plate 10 used in the present invention.
본 발명의 상기와 같은 구성에 따라, 광원에서 발산되는 빛이 상기 가로프리즘, 세로프리즘 및 프리즘의 경사진 측면을 통과하면서 빛이 여러 방향으로 굴절되므로서 빛이 집중하여 조사되지 않고, 액정표시창의 전체면에 균일하게 분산하여 조사되며, 종래의 2개의 층으로 이루어진 도광판이 하나의 층으로 이루어지므로 박판으로 형성할 수 있게 된다.According to the configuration of the present invention, the light emitted from the light source passes through the inclined sides of the horizontal prism, the vertical prism and the prism, the light is refracted in various directions, so that the light is not concentrated and irradiated, It is evenly distributed and irradiated on the whole surface, and thus, a light guide plate having two layers in the related art is formed in one layer, thereby forming a thin plate.
이상에서 설명한 것은 본 발명에 따른 가로방향과 세로방향의 프리즘이 일체로 형성된 도광판을 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 발명은 상기한 실시예에 한정되지 아니하고 이하의 청구범위에서 청구하는 바와 같이 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 사상이 있다고 할 것이다. What has been described above is only one embodiment for implementing the light guide plate integrally formed with the horizontal and vertical prism according to the present invention, the present invention is not limited to the above-described embodiment and claimed in the following claims As will be apparent to those skilled in the art to which the present invention pertains without departing from the gist of the present invention, the technical spirit of the present invention may be modified to the extent that various modifications can be made.
도1은 본 발명의 일실시예에 따른 도광판의 사시도.1 is a perspective view of a light guide plate according to an embodiment of the present invention.
도2는 도1의 선 A-A'를 따라 취한 단면도.FIG. 2 is a sectional view taken along the line A-A 'of FIG.
도3a는 도1에 따른 도광판을 부분적으로 확대한 정면도.3A is an enlarged front view of the light guide plate of FIG. 1 partially;
도3b는 다른 실시예에 따른 도광판을 부분적으로 확대한 정면도.3B is a partially enlarged front view of a light guide plate according to another embodiment;
도4는 도1에 따른 도광판이 장착되는 액정표시장치의 분해 사시도.4 is an exploded perspective view of the liquid crystal display device to which the light guide plate of FIG. 1 is mounted;
도5a와 도5b는 종래기술에 따른 도광판의 사시도와 분해 사시도.5A and 5B are perspective and exploded perspective views of a light guide plate according to the prior art;
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on main parts of drawing
10 : 도광판 20 : 형광등10: light guide plate 20: fluorescent lamp
30 : 반사판 40 : 확산판30: reflector 40: diffuser plate
50 : LCD 60 : 보호판50: LCD 60: protective plate
110 : 가로프리즘부재 115 : 가로프리즘110: horizontal prism member 115: horizontal prism
120 : 세로프리즘부재 125 : 세로프리즘120: vertical prism member 125: vertical prism
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030071003A KR20050035582A (en) | 2003-10-13 | 2003-10-13 | Light guide plate which is wholly formed with horizontal prism and vertical prism |
| PCT/KR2004/002324 WO2005036245A1 (en) | 2003-10-13 | 2004-09-14 | Light guide plate which is wholly formed with horizontal prism and vertical prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030071003A KR20050035582A (en) | 2003-10-13 | 2003-10-13 | Light guide plate which is wholly formed with horizontal prism and vertical prism |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20-2003-0032069U Division KR200339531Y1 (en) | 2003-10-13 | 2003-10-13 | Light Guide Plate which is wholly formed with Horizontal Prism and Vertical Prism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20050035582A true KR20050035582A (en) | 2005-04-19 |
Family
ID=34431694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020030071003A KR20050035582A (en) | 2003-10-13 | 2003-10-13 | Light guide plate which is wholly formed with horizontal prism and vertical prism |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20050035582A (en) |
| WO (1) | WO2005036245A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101009536B1 (en) * | 2008-12-19 | 2011-01-18 | 이재식 | The illumination plate for decoration illuminated lamp |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI266938B (en) | 2005-11-18 | 2006-11-21 | Hon Hai Prec Ind Co Ltd | Light guiding plate |
| CN102410495B (en) * | 2011-12-07 | 2014-10-15 | 丹阳博昱科技有限公司 | Optical sheet with different orientations of micro structure regions and manufacture method of optical sheet |
| KR102001666B1 (en) * | 2012-08-20 | 2019-07-19 | 삼성디스플레이 주식회사 | Display apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3402138B2 (en) * | 1996-09-27 | 2003-04-28 | 株式会社日立製作所 | Liquid crystal display |
| KR100291242B1 (en) * | 1997-12-19 | 2001-06-01 | 김명 | Back light unit of light plate for liquid crystal display |
| KR20000024139A (en) * | 2000-01-25 | 2000-05-06 | 윤효철 | a back light unit |
-
2003
- 2003-10-13 KR KR1020030071003A patent/KR20050035582A/en not_active Application Discontinuation
-
2004
- 2004-09-14 WO PCT/KR2004/002324 patent/WO2005036245A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101009536B1 (en) * | 2008-12-19 | 2011-01-18 | 이재식 | The illumination plate for decoration illuminated lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005036245A1 (en) | 2005-04-21 |
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