TW200837409A - Light guide panel for liquid crystal display having light diffusion material and back light unit using thereof - Google Patents
Light guide panel for liquid crystal display having light diffusion material and back light unit using thereof Download PDFInfo
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- TW200837409A TW200837409A TW096144892A TW96144892A TW200837409A TW 200837409 A TW200837409 A TW 200837409A TW 096144892 A TW096144892 A TW 096144892A TW 96144892 A TW96144892 A TW 96144892A TW 200837409 A TW200837409 A TW 200837409A
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- light guide
- pattern
- liquid crystal
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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
- G02B6/0033—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
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
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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
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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
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk 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
- G02B6/005—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
Abstract
Description
200837409200837409
File:TW4187F 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種液晶顯示裝置之背光模組之導 ^ 光板，且特別是有關於一種能大幅改善可視性與亮度之導 光板，係藉由將光擴散物分佈於位於導光板之前表面上之 整個前稜鏡内以達到上述效果，且前表面為光線射出之表 面。 【先前技術】 一般來說，液晶顯示裝置係將電場施加於兩玻璃基板 間之液晶層，錯以顯不數字或影像。此液晶層係由具有介 於液體及固體間之中間狀態之材料所組成。 由於液晶顯示裝置為非自發光裝置，因此必須具備背 光模組做為光源以產生光線。液晶係均勻地排列於液晶面 板中，且在此液晶面板中，係藉由調整背光模組產生之光 線之透光率（transmittance)以顯示影像。 第1圖繪示一種傳統液晶顯示裝置之背光模組之分 解圖。 依照發出光線之光源的位置來區分，液晶顯示裝置之 背光模組可分為直下式背光模組及側光式背光模組。直下 式背光模組之光源係設置於液晶顯示面板100之下，而側 光式背光模組之光源則是設置於液晶顯示面板100之側 邊。第1圖所示之背光模組係為側光式背光模組。 如苐1圖所不’傳統液晶顯不裝置之背光模組包括光 6 200837409File: TW4187F IX. Description of the Invention: [Technical Field] The present invention relates to a light guide plate of a backlight module of a liquid crystal display device, and more particularly to a light guide plate capable of greatly improving visibility and brightness. The above effect is achieved by distributing the light diffusing material throughout the entire front sill on the front surface of the light guide plate, and the front surface is the surface from which the light is emitted. [Prior Art] In general, a liquid crystal display device applies an electric field to a liquid crystal layer between two glass substrates, with a difference of numbers or images. The liquid crystal layer is composed of a material having an intermediate state between the liquid and the solid. Since the liquid crystal display device is a non-self-illuminating device, it is necessary to have a backlight module as a light source to generate light. The liquid crystal system is evenly arranged in the liquid crystal panel, and in the liquid crystal panel, the light transmittance of the light generated by the backlight module is adjusted to display an image. FIG. 1 is an exploded view of a backlight module of a conventional liquid crystal display device. According to the position of the light source that emits light, the backlight module of the liquid crystal display device can be divided into a direct type backlight module and an edge light type backlight module. The light source of the direct-lit backlight module is disposed under the liquid crystal display panel 100, and the light source of the edge-lit backlight module is disposed on the side of the liquid crystal display panel 100. The backlight module shown in FIG. 1 is an edge-lit backlight module. For example, the backlight module of the conventional liquid crystal display device includes light 6 200837409
File:TW4187F 源105、導光板i12、反射板115、擴散板12〇、稜鏡片（pdsm sheet，又稱增亮膜）125及保護板13〇。 . 光源105係用以發出光線。液晶顯示裝置可具有不同 種類的光源105。由於冷陰極管（c〇ldcath〇de lamp，CCFL)的耗電量低且可發出高亮度之白光，因此，液 晶顯示裝置一般係使用冷陰極管做為光源1〇5。 導光板112係配置於液晶顯示面板1〇()之下且鄰近光 源105之一侧。導光板112用以將光源1〇5產生之點光線 轉換成面光線’並將面光線投射至液晶顯示面板1〇〇。 反射板115係配置於導光板112之後側。反射板115 用以反射光源105所發射之光線，並將此光線反射至位於 反射板115别方之液晶顯示面板1 〇〇。 擴散板120係配置於導光板112之前側。擴散板12〇 用以使通過導光板112之光線均勻化。 當光線通過擴散板12〇時，光線係於水平及垂直方向 擴散，且其亮度迅速地減弱。因此，棱鏡片125係用以折 射並集中光線，藉以加強亮度。 保護板130係配置於棱鏡片125之上方。保護板130 用以防止棱鏡片125被刮傷。當兩層稜鏡片125分別沿著 垂直及水平方向排列時，保護板130可防止疊紋效應 (Moire effect) 〇 此外，雖然第1圖中並沒有顯示，傳統背光模組1〇 更包括一框架（frame)或外殼(housing)，及一背板(back cover)或燈罩殼(lamp housing)。組成背光模組1〇之元件係 7 200837409File: TW4187F source 105, light guide plate i12, reflector 115, diffuser plate 12, pepsm sheet (also known as brightness enhancement film) 125 and protective plate 13〇. The light source 105 is used to emit light. The liquid crystal display device can have different kinds of light sources 105. Since the cold cathode tube (CCFL) has low power consumption and can emit high-intensity white light, the liquid crystal display device generally uses a cold cathode tube as the light source 1〇5. The light guide plate 112 is disposed under the liquid crystal display panel 1 (') and adjacent to one side of the light source 105. The light guide plate 112 is for converting the point light generated by the light source 1 〇 5 into a surface ray ' and projecting the surface ray to the liquid crystal display panel 1 〇〇. The reflector 115 is disposed on the rear side of the light guide plate 112. The reflecting plate 115 is for reflecting the light emitted by the light source 105 and reflecting the light to the liquid crystal display panel 1 别 located on the other side of the reflecting plate 115. The diffusion plate 120 is disposed on the front side of the light guide plate 112. The diffusion plate 12 is used to homogenize the light passing through the light guide plate 112. When light passes through the diffuser 12, the light diffuses in the horizontal and vertical directions, and its brightness is rapidly weakened. Therefore, the prism sheet 125 is used to refract and concentrate light to enhance the brightness. The protective plate 130 is disposed above the prism sheet 125. The protective plate 130 serves to prevent the prism sheet 125 from being scratched. When the two layers of the cymbals 125 are arranged in the vertical and horizontal directions, respectively, the protective plate 130 can prevent the Moire effect. Further, although not shown in FIG. 1, the conventional backlight module 1 further includes a frame. (frame) or housing, and a back cover or lamp housing. The component system constituting the backlight module 1 2008 7 200837409
File:TW4187F 固定於框架或外殼上，背板或燈罩殼係用以保護並支撐背 光模組10，同時並維持背光模組10之強度。 第2圖及第3圖繪示導光板之剖面放大圖，在此些圖 • 中並繪示由光源105發出之光線通過導光板112時之行進 方向。 如第2圖所示。光源105係配置於背光模組10之邊 緣（在液晶電視中，光源105係直接配置於面板後方）， 使得光線並非均勻地傳送至整個背光模組，尤其是背光模 ( 組的邊緣會比其他部分之背光模組更亮。因此，導光板112 的使用係用以防止此現象。導光板112 —般係由透明壓克 力材料所組成。壓克力具有強度南、重量輕及可見光透射 率高之特性，不易破裂或變形。 換言之，導光板112使得由光源105發射之光線得以 均勻地投射至導光板112的整個表面。然而實際上當背光 模組10被拆解時，且光線得以由位於導光板112 —側之 光源105發出時，光線並非均勻地投射至導光板112之整 I , 個表面，而是集中在導光板112之兩端。這是由於導光板 112引導光源105發出之光線投射至導光板112相對的另 一側。 因此導光板112之後表面係經過特別處理，使得在導 光板112中散射之光線得以被反射，使光線可被傳遞至導 光板112之整個表面。更具體地來說，導光板112之後表 面具有數個突部或凹部113。此些凸部或凹部113之形狀 係考慮與光源105之距離及類似條件所設計的。當導光板 8 200837409File: The TW4187F is attached to the frame or housing. The backplane or lamp housing protects and supports the backlight module 10 while maintaining the strength of the backlight module 10. 2 and 3 are enlarged cross-sectional views of the light guide plate, and the direction in which the light emitted by the light source 105 passes through the light guide plate 112 is shown in these figures. As shown in Figure 2. The light source 105 is disposed at the edge of the backlight module 10 (in the liquid crystal television, the light source 105 is directly disposed behind the panel), so that the light is not uniformly transmitted to the entire backlight module, especially the backlight module (the edge of the group is more than other Part of the backlight module is brighter. Therefore, the use of the light guide plate 112 is used to prevent this phenomenon. The light guide plate 112 is generally composed of a transparent acrylic material. The acrylic has the strength of south, light weight and visible light transmittance. In other words, the light guide plate 112 allows the light emitted by the light source 105 to be uniformly projected onto the entire surface of the light guide plate 112. However, when the backlight module 10 is disassembled, the light is located. When the light source 105 on the side of the light guide plate 112 is emitted, the light is not uniformly projected onto the entire surface of the light guide plate 112, but concentrated on both ends of the light guide plate 112. This is because the light guide plate 112 guides the light emitted from the light source 105. Projected to the opposite side of the light guide plate 112. Therefore, the surface of the light guide plate 112 is specially treated so that the light scattered in the light guide plate 112 can be reversed. The light can be transmitted to the entire surface of the light guide plate 112. More specifically, the rear surface of the light guide plate 112 has a plurality of protrusions or recesses 113. The shape of the protrusions or recesses 113 is considered to be the distance from the light source 105. And similar conditions are designed. When the light guide plate 8 200837409
File:TW4187F 112之後表面具有凸部或凹部113時，由液晶顯示裝置之 導光板之整個表面所射出之平面光線具有較高的亮度及 均齊度。 當液晶顯示裝置根據上述方法所製造時，凸部或凹部 113所在之處之光線的強度較高。另一方面，不具有凸部 或凹部之處的光線的強度較低。也就是說，面板具有班點 狀之發光不均勻的現象，因而降低了可視性（visibility)。 尤其當面板尺寸較大時，傳達至距離光源105較遠處之光 I 量不足，因此，距離光源105較遠處之光強度較低。 此外，擴散板120及稜鏡片125係用以增加光線之均 齊度。然而，擴散板120及稜鏡片125增加了背光模組之 厚度，因而增加背光模組薄形化之困難度，同時並增加了 背光模組之製造成本。 為了解決上述問題，目前已發展出在導光板之後表面 上形成特定圖案之技術。此技術的代表範例係在導光板之 後表面形成點稜鏡之圖案。 雖然後表面具有點稜鏡圖案之導光板不需要使用稜 鏡片即可具有絕佳之亮度及均齊度，然而在背光狀態下以 肉眼觀察時，此種導光板在可視性上具有較差的結構。 具有點稜鏡之導光板之光學特性使得光線可垂直地 射出導光板，因此具有較高之亮度。為了利用此一優點， 在組成背光模組時必須使用具有低霧度(haze)及高透光率 之擴散板。 然而，擴散板會降低4〇%的亮度，且導光板邊緣及角 9 200837409File: When the surface of the TW4187F 112 has a convex portion or a concave portion 113, the planar light emitted from the entire surface of the light guide plate of the liquid crystal display device has high brightness and uniformity. When the liquid crystal display device is manufactured according to the above method, the intensity of the light where the convex portion or the concave portion 113 is located is high. On the other hand, the intensity of light having no convex portion or concave portion is low. That is to say, the panel has a phenomenon that the spot light is unevenly illuminated, thereby reducing visibility. Especially when the panel size is large, the amount of light I transmitted to a distance far from the light source 105 is insufficient, and therefore, the light intensity farther from the light source 105 is lower. In addition, the diffuser 120 and the cymbal 125 are used to increase the uniformity of light. However, the diffusion plate 120 and the cymbal plate 125 increase the thickness of the backlight module, thereby increasing the difficulty of thinning the backlight module and increasing the manufacturing cost of the backlight module. In order to solve the above problems, a technique of forming a specific pattern on the surface behind the light guide plate has been developed. A representative example of this technique is to form a pattern of dots on the rear surface of the light guide plate. Although the light guide plate having the dot pattern on the back surface does not require the use of the cymbal sheet, it has excellent brightness and uniformity, but when viewed in the naked state in the state of the light, the light guide plate has poor visibility in structure. . The optical characteristics of the light guide plate with a point 使得 allow the light to be emitted vertically out of the light guide plate, thus having a higher brightness. In order to take advantage of this advantage, a diffusing plate having a low haze and a high light transmittance must be used in forming the backlight module. However, the diffuser will reduce the brightness by 4%, and the edge and corner of the light guide 9 200837409
File:TW4187F 落之亮暗帶無法被完全消除。 因此，如何在不使用額外的擴散板120及稜鏡片125 的條件下，在液晶顯示裝置之面板之前表面產生具有高可 視性、高亮度及高均勻度之面光線是極為重要的。 【發明内容】 本發明係有關於一種液晶顯示裝置之背光模組之導 光板，液晶顯示裝置之面板之整個表面具有高亮度、高均 ^ 勻度及高可視度之特性，且不需要使用擴散板或稜鏡片。 根據本發明提出一種具有本發明之導光板之液晶顯 示裝置之背光模組。 本發明並不侷限於上述對象，本發明之所屬領域中具 有通常知識者可由以下敘述輕易了解本發明之其他對象。 根據本發明提出一種液晶顯示裝置之具有本發明之 較佳實施例之條狀圖案之導光板。導光板包括相對側表 面、前表面及後表面。光線係由相對側表面入射。前表面 及後表面係與相對侧表面相連，分別用以讓光線射出及反 射。前表面包括數個具有一預定剖面形狀之前稜鏡，此些 前稜鏡係配置於主體之前表面。光擴散材料係分佈於整個 前稜鏡内。後表面具有光學圖案以反射光線。 根據本發明提出一種液晶顯示裝置之背光模組，包括 本發明之導光板及一光源。光源係配置於導光板之一側或 相對兩侧。 為讓本發明之上述内容能更明顯易懂，下文特舉一較 200837409File: TW4187F The dark band cannot be completely eliminated. Therefore, how to generate surface light having high visibility, high brightness, and high uniformity on the surface of the panel of the liquid crystal display device is extremely important without using the additional diffusion plate 120 and the cymbal sheet 125. SUMMARY OF THE INVENTION The present invention relates to a light guide plate of a backlight module of a liquid crystal display device. The entire surface of the panel of the liquid crystal display device has high brightness, high uniformity, and high visibility, and does not require diffusion. Plate or cymbal. According to the present invention, a backlight module having a liquid crystal display device of the light guide plate of the present invention is proposed. The present invention is not limited to the above-described objects, and those skilled in the art to which the present invention pertains can easily understand other objects of the present invention from the following description. According to the present invention, a light guide plate having a stripe pattern of a preferred embodiment of the present invention is provided. The light guide plate includes opposite side surfaces, a front surface, and a rear surface. The light is incident from the opposite side surfaces. The front and back surfaces are connected to opposite side surfaces for directing and reflecting light. The front surface includes a plurality of ridges having a predetermined cross-sectional shape disposed on the front surface of the body. The light diffusing material is distributed throughout the front sill. The rear surface has an optical pattern to reflect light. According to the present invention, a backlight module of a liquid crystal display device is provided, comprising the light guide plate of the present invention and a light source. The light source is disposed on one side or opposite sides of the light guide plate. In order to make the above content of the present invention more obvious and easy to understand, the following is a special mention of 200837409
File:TW4187F 佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 以下配合圖示詳細敘述本發明之較佳實施例。 本發明之優點及特徵及完成本發明之優點及特徵之 方法係可透過本發明之較佳實施例清楚地了解。本發明之 較佳實施例係參照圖示詳細敘述如下。然而值得注意的 是，本發明並不侷限於此較佳實施例而可具有不同形式。 ( 因此，此實施例僅用以揭露本發明，使得本發明所屬技術 領域中具有通常知識者可完全明白本發明。本發明之保護 範圍當視後附之申請專利範圍所界定者為準。在不同圖式 中之相同或類似之元件係以相同符號標示。 此外需注意的是，為了更清楚說明本發明，構成本發 明之元件的尺寸在圖示中係被較誇張地繪示。「一元件在 另一元件之内，或一元件與另一元件連接」之敘述係指此 些元件可能彼此接觸，或一元件係與另一元件以一距離相 ^ 隔。當此些元件間係以一距離相隔時，一用以連接此些元 件之第三元件係可被省略的。 第4圖繪示本發明一較佳實施例之液晶顯示裝置之 背光模組之導光板之示意圖。 如第4圖所示，本發明之較佳實施例之液晶顯示裝置 之導光板20 —般係由透明壓克力材料組成。壓克力材料 具有強度高、重量輕及可見光透射率高之特性，不易破裂 或變形。導光板20包括主體200、前稜鏡210及點稜鏡 200837409File: TW4187F The preferred embodiment is described in detail below with reference to the accompanying drawings. [Embodiment] The preferred embodiments of the present invention are described in detail below with reference to the drawings. The advantages and features of the present invention, as well as the advantages and features of the present invention, are apparent from the preferred embodiments of the invention. The preferred embodiments of the present invention are described in detail below with reference to the drawings. However, it is to be noted that the invention is not limited to the preferred embodiment and may have different forms. Therefore, the present invention is only intended to disclose the invention, and the invention is to be fully understood by those of ordinary skill in the art. The scope of the invention is defined by the scope of the appended claims. The same or similar elements in the different drawings are denoted by the same reference numerals. It is to be noted that, in order to explain the present invention more clearly, the dimensions of the elements constituting the present invention are more exaggerated in the drawings. The description of the elements in the other element or the connection of one element to another means that the elements may be in contact with each other, or one element is separated from the other element by a distance. When a distance is separated, a third component for connecting the components can be omitted. FIG. 4 is a schematic diagram of a light guide plate of a backlight module of a liquid crystal display device according to a preferred embodiment of the present invention. 4, the light guide plate 20 of the liquid crystal display device of the preferred embodiment of the present invention is generally composed of a transparent acrylic material. The acrylic material has high strength, light weight and visible light transmittance. The characteristics, is not easily broken or deformed. The light guide plate 20 includes a main body 200, and the point before Prism 210 Prism 200 837 409
File:TW4187F 220。 主體200包括數個第一側表面201、數個第二側表面 202、一前表面203及一後表面205。光線係由第一側表面 201入射，而不由第二側表面202入射。前表面203與第 一側表面201及第二側表面202相連接，且前表面203係 設置於面對液晶顯示裝置之面板（圖中未標示）之一側。 後表面205連接於第一側表面201及第二側表面202，且 後表面205係設置於與前表面203相對之另一側。 第一側表面201為主體200面對並鄰近光源206之表 面。也就是說，第一側表面201為光源206所產生之光線 所入射之處。 在第一側表面201上，亦即光線入射之表面上預先進 行表面處理，例如是在表面形成楔形圖案、在表面形成均 勻形狀之凸部或凹部、或在表面進行喷砂處理（sand blast process)，藉以更有效地擴散、折射及反射由光源206射出 並入射至第一側表面201之光線。 當光源206發出之光線入射至主體200時，主體200 加速擴散、折射及反射由光源206發出之光線。因此對主 體200之第一側表面201進行上述表面處理可消除在主體 200之部分區域形成之亮帶及暗帶，藉此增加導光板之主 體200之整體的均齊度及可視性。 第二侧表面202係為主體200上與第一側表面201相 接之側表面。然而，第二側表面202與第一側表面201不 同之處在於第二側表面202並不與光源206相鄰，且光源 12 200837409File: TW4187F 220. The body 200 includes a plurality of first side surfaces 201, a plurality of second side surfaces 202, a front surface 203, and a rear surface 205. Light is incident from the first side surface 201 and is not incident on the second side surface 202. The front surface 203 is connected to the first side surface 201 and the second side surface 202, and the front surface 203 is disposed on one side of a panel (not shown) facing the liquid crystal display device. The rear surface 205 is coupled to the first side surface 201 and the second side surface 202, and the rear surface 205 is disposed on the other side opposite the front surface 203. The first side surface 201 is the surface of the body 200 that faces and is adjacent to the light source 206. That is, the first side surface 201 is where the light generated by the light source 206 is incident. Surface treatment is performed on the first side surface 201, that is, the surface on which the light is incident, for example, a wedge pattern is formed on the surface, a convex or concave portion having a uniform shape is formed on the surface, or a sandblasting process is performed on the surface (sand blast process) The light emitted by the light source 206 and incident on the first side surface 201 is more effectively diffused, refracted, and reflected. When the light emitted by the light source 206 is incident on the body 200, the body 200 accelerates the diffusion, refraction, and reflection of the light emitted by the light source 206. Therefore, the surface treatment of the first side surface 201 of the main body 200 can eliminate the bright bands and the dark bands formed in the partial regions of the main body 200, thereby increasing the uniformity and visibility of the main body 200 of the light guide plate. The second side surface 202 is a side surface of the body 200 that is in contact with the first side surface 201. However, the second side surface 202 is different from the first side surface 201 in that the second side surface 202 is not adjacent to the light source 206, and the light source 12 200837409
File:TW4187F 206發出之光線並非入射至第二側表面202。 然而，光源可選擇性地設置於相鄰於第二側表面之 處。 由光源206發出之光線係由側表面201進入，並由前 表面203及後表面205射出。前表面203及後表面205與 側表面201相連。前表面203及後表面205分別具有一設 置於主體200内之一表面、且分別具有形成主體200之外 側表面之另一表面。 f 前棱鏡210係形成於前表面203上，且具有一預定之 剖面形狀。前稜鏡210係用以均勻地繞射、折射及擴散由 主體200發出之光線。 前棱鏡210可緊密地相連而配置於整個前表面203， 或是彼此之間具有一預定之距離地排列於前表面203上。 此外，每一個前稜鏡210之縱向係沿著第4圖中箭頭 Q之方向（光線由光源206射出之方向）。 第5圖及第6圖分別繪示沿著第四圖中之A-B線之 (； 剖面圖。 如第5圖及第6圖所示，光擴散材料211係分佈於前 棱鏡210之整個表面或分佈於前棱鏡210之内部及外部。 當由光源（請參照第4圖之符號206)發出且入射至 第一侧表面201之光線被分佈於整個後表面205上之點稜 鏡220反射時，或當光線直接由前表面203射出時，光擴 散材料211係用以進一步加速光線之擴散。 當光擴散材料211分佈於導光板200之前表面203上 13 200837409File: The light emitted by the TW4187F 206 is not incident on the second side surface 202. However, the light source can be selectively disposed adjacent to the second side surface. The light emitted by the light source 206 enters through the side surface 201 and is emitted by the front surface 203 and the rear surface 205. The front surface 203 and the rear surface 205 are connected to the side surface 201. The front surface 203 and the rear surface 205 each have a surface disposed on one surface of the main body 200 and have another surface forming an outer side surface of the main body 200, respectively. f The front prism 210 is formed on the front surface 203 and has a predetermined sectional shape. The front cymbal 210 is used to uniformly refract, refract, and diffuse light emitted by the body 200. The front prisms 210 may be closely connected to each other over the entire front surface 203 or may be arranged on the front surface 203 with a predetermined distance therebetween. Further, the longitudinal direction of each of the front cymbals 210 is along the direction of the arrow Q in Fig. 4 (the direction in which the light is emitted by the light source 206). 5 and 6 are respectively taken along the line AB of the fourth figure (a cross-sectional view. As shown in FIGS. 5 and 6 , the light diffusing material 211 is distributed over the entire surface of the front prism 210 or Distributed inside and outside the front prism 210. When the light emitted by the light source (refer to symbol 206 of Fig. 4) and incident on the first side surface 201 is reflected by the point 稜鏡 220 distributed over the entire rear surface 205, Or when the light is directly emitted from the front surface 203, the light diffusing material 211 is used to further accelerate the diffusion of the light. When the light diffusing material 211 is distributed on the front surface 203 of the light guide plate 200 13 200837409
File:TW4187F 之刚錢210内時，本發明之導光板不需要額外的擴散板 即可具有充足之光擴散能力。 . 口此本發明之導光板之整個表面可為一具有極佳亮 度及光擴政性之面光源。 光&政材料211係任意地分佈於前稜鏡210之整個表 面或前稜鏡21〇之内部及外部。 由於光擴政材料211具有自吸收光之特性，當光擴散 材料2 1 1的量動;之> r4·* 里早又夕時，焭度可能會下降。因此必須適當地 控制光擴，材料211分佈於整個前稜鏡210之多寡。 〇光擴，材料211較佳地佔組成前稜鏡21〇之成分的 0.05%至8%。此外，光擴散材料可僅分佈於導光板之前表 面0 當光擴散材料211佔組成前稜鏡21〇之成分的百分比 介於上述之範圍内時，由於其高光擴散性、光吸收性及光 抗性之特性，導光板在亮度上具有非常良好之優勢。 〇 光擴散材料211至少包括下列材料之一：無機光擴散 物或含石夕膠（silicone-base)、丙稀盤基(acryUase)或笨乙晞 基（styrene-base)之有機光擴散物。 無機光擴散物例如是二氧化矽（si〇2)、二氧化鈦 (Ti02)、碳酸鈣（CaC03)、硫酸鋇（BaS〇4)、氫氧化鋁 (AIOH3)、玻璃（glass)、滑石（talc)、雲母（mica)、白碳（white carbon)、氧化鎂（Mg〇2)、氧化鋅(Zn〇2)或類似之材料。 石夕氧炫*基（Siloxane-based)光擴散物係為在室溫下為 固態之交聯顆粒（cross-linking particie)。矽氧烷基光擴散 200837409In the case of File: TW4187F, the light guide plate of the present invention can have sufficient light diffusion capability without an additional diffusion plate. The entire surface of the light guide plate of the present invention can be a surface light source having excellent brightness and light expansion. The Light & Political Materials 211 are arbitrarily distributed over the entire surface of the front sill 210 or inside and outside the front 稜鏡 21 。. Since the light diffusing material 211 has self-absorbing light characteristics, when the light diffusing material 2 1 1 is measured; the > r4·* is early and late, the twist may be lowered. Therefore, the optical expansion must be appropriately controlled, and the material 211 is distributed over the entire front sill 210. The material 211 preferably constitutes 0.05% to 8% of the composition of the front layer 21〇. In addition, the light diffusing material may be distributed only on the front surface of the light guide plate. When the percentage of the light diffusing material 211 constituting the front layer 21〇 is within the above range, due to its high light diffusibility, light absorption, and light resistance The characteristics of the nature, the light guide plate has a very good advantage in brightness. The light diffusing material 211 includes at least one of the following materials: an inorganic light diffuser or an organic light diffuser containing a silicone-base, an acryUase or a styrene-base. The inorganic light diffusing agent is, for example, ceria (si〇2), titania (Ti02), calcium carbonate (CaC03), barium sulfate (BaS〇4), aluminum hydroxide (AIOH3), glass, talc. , mica, white carbon, magnesium oxide (Mg〇2), zinc oxide (Zn〇2) or the like. The Siloxane-based light diffuser is a cross-linking particie that is solid at room temperature.矽 烷基 alkyl light diffusion 200837409
File:TW4187F 板包括作為石夕膠樹脂顆粒之石夕橡膠（silicone rubber)及硬化 之矽膠樹脂。其中矽橡膠具有低交聯密度，而硬化之石夕膠 樹脂具有高交聯密度。 舉幾個特定的例子來說，矽膠光擴散物可包括聚烷基 石夕氧樹脂（polyalkyl siloxane resins)，例如是聚乙烧石夕氧化 合物(polydimethyl siloxane)、聚二乙基石夕氧樹脂 (polydiethy 1 siloxane)或具有立體網路結構之矽膠樹脂 (silicon resins)。矽膠樹脂可為以環氧樹脂（epoxy)作為末端 f、 i 基團（terminal group)之秒氧烧。 矽氧烷基交聯顆粒具有極佳的耐天候性(weather resistance)。因此，即使長時間暴露在光線下也不會出現 變黃的現象。 除此之外，矽氧烷基光擴散物之折射率約為1.40至 1·43，比其他的有機交聯顆粒來得低。因此，與其他同等 級的光擴散物相較，雖然僅增加少量矽氧烷基光擴散物， 仍可具有高光擴散性及高透光率。File: The TW4187F board includes a silicone rubber as a core resin and a hardened silicone resin. Among them, the ruthenium rubber has a low crosslink density, and the hardened zeolitic resin has a high crosslink density. As a few specific examples, the silicone light diffuser may include polyalkyl siloxane resins such as polydimethyl siloxane and polydiethy. 1 siloxane) or silicon resins with a three-dimensional network structure. The silicone resin may be a second oxygen fired with an epoxy as a terminal f, i terminal group. The oxoalkyl crosslinked particles have excellent weather resistance. Therefore, yellowing does not occur even after prolonged exposure to light. In addition, the fluorinated alkyl light diffuser has a refractive index of about 1.40 to 1.43, which is lower than other organic crosslinked particles. Therefore, compared with other light diffusion materials of the same grade, although only a small amount of the siloxane alkyl light diffusing material is added, high light diffusibility and high light transmittance can be obtained.
U 本發明所使用之石夕氧院基光擴散物較佳地使用平均 直徑為1 μηι至20μιη之球狀細交聯顆粒。 本發明所使用之丙烯醛基光擴散物係為平均直徑為 Ιμιη至20μιη之球狀交聯顆粒，且其折射率為1.46至1.56。 丙烯醛基光擴散物為丙烯醛基單官能基單體，例如是曱基 丙烯酸酯（methacrylie acid esters)或丙烯酸酯（acryiic acid esters)。曱基丙稀酸酯舉例來說為甲基丙烯酸乙酯（ethyl methacrylate)、曱基丙烯酸曱酯（methyl methacrylate)、曱 15 200837409U The stone-based light diffusing material used in the present invention preferably uses spherical fine crosslinked particles having an average diameter of from 1 μm to 20 μm. The acrolein-based light diffusing agent used in the present invention is a spherical crosslinked particle having an average diameter of from Ιμηη to 20 μηη, and has a refractive index of 1.46 to 1.56. The acrolein-based light diffuser is an acrolein-based monofunctional monomer such as methacrylie acid esters or acryiic acid esters. The mercapto acrylate is exemplified by ethyl methacrylate, methyl methacrylate, 曱 15 200837409
File:TW4187F 基丙稀酸丁 g旨（butyl methacrylate)、甲基丙浠酸環己酉旨 (cyclohexyl methacrylate)或甲基丙稀酸苯 g旨（phenyl methacrylate)。丙烯酸酯舉例來說為丙烯酸甲酯（methyl acrylate)、丙稀酸乙醋（ethyl acrylate)、丙稀酸丁脂（butyl aery late)、丙稀酸環己g旨（CyCi〇hexyl aery late)、丙稀酸笨酉旨 (phenyl aery late)或苄基丙烯酸酯（benzyl aery late)。若有需 要’亦可同時使用上述兩者或兩者以上。 丙烯酸基光擴散物之優點在於能控制觸感，例如是控 f \ 制導光板具有白面（white surface)或不光滑處之霧面，藉以 改善視覺品質。 苯乙烯基光擴散物例如是苯乙烯（styrene)、α -曱基笨 乙烯（α-methyl styrene)、鹵化苯乙烯（halogenated styrene) 或類似之物質。 若有需要，除了上述光擴散材料之外，本發明之導光 板200之前稜鏡210内更可包括抗衝擊調整物（impact resistance modifier)、光穩定劑（light stabilizer)、抗靜電劑 (antistatic agent)、紫外光吸收劑（UV absorber)或其他類似 物質。 抗衝擊調整物較佳地包括橡膠元件，例如是丙烯酸橡 膠或丁二稀橡膠，但並不以此為限。 當曱基丙烯酸樹脂及橡膠聚合時，由於橡膠具有高抗 衝擊性及彎曲彈性模數，因而改善了曱基丙烯酸樹脂的性 質。 光穩定劑藉由捕捉自由基而改善樹脂成分的耐久 200837409File: TW4187F butyl methacrylate, cyclohexyl methacrylate or phenyl methacrylate. The acrylate is exemplified by methyl acrylate, ethyl acrylate, butyl aery late, and CyCi hexyl aery late. Phenolic a phenyl aery late or benzyl aery late. If necessary, you can use both or both of them at the same time. The advantage of the acrylic-based light diffuser is that it can control the touch, for example, to control the light surface of the light guide plate having a white surface or a matte surface, thereby improving the visual quality. The styrene-based light diffusing material is, for example, styrene, α-methyl styrene, halogenated styrene or the like. If necessary, in addition to the above light diffusing material, the light guide plate 200 of the present invention may further include an impact resistance modifier, a light stabilizer, and an antistatic agent. ), UV absorber or other similar substance. The impact modifier preferably comprises a rubber element, such as acrylic rubber or butyl rubber, but is not limited thereto. When the mercaptoacrylic resin and the rubber are polymerized, the properties of the mercapto-based acrylic resin are improved because of the high impact resistance and the flexural modulus of the rubber. Light stabilizer improves the durability of resin components by capturing free radicals 200837409
File:TW4187F 性。因此，受阻胺可作為光穩定劑。在不影響本發明之性 質的範圍内，光穩定劑一般係與紫外光吸收劑一起使用。 抗靜電劑係藉由消除形成於前稜鏡210及導光板200 ’ 之空間電荷以防止前稜鏡210與導光板200帶電。此外， 用以製造導光板200及前稜鏡210之高分子樹脂具有高表 面電阻，使得高分子樹脂容易因為靜電而帶電，造成灰塵 或其他類似物質吸附在前稜鏡上，導致導光板之視覺品質 下降及發光效率降低。因此，抗靜電劑係用以防止燈色之 1 1改變。 舉例來說，抗靜電劑至少包括下列化合物之一：聚乙 醚硫亞氨化合物（poly(ether imide amide))、聚醚酯 (poly(ether ester))、聚醚 g旨氨 p〇ly(ether ester amide)，聚乙 二醇(polyalkylene glycol)、十二烷基苯磺酸鹼金屬 (dodecylbenzene sulfonic acid alkaline metal)、三級胺 (tertiary amine)、四級胺（quaternary ammonium)、鹽及烧基 胺（alkyl amines)。 J 紫外光吸收劑係用以阻隔光源206 (請參照第4圖） 所發出之紫外光’可使用任何可吸收波長介於250nm至 280nm之紫外光吸收劑。紫外光接收劑吸收之最長波長較 佳係介於250nm至320nm之間，可改善導光板200之光 抗性，並可抑制擴散板吸收紫外光所導致之著色問題。 舉例來說’紫外光吸收劑至少包括下列其中之一：笨 曱酮（benzophenone)、苯並三唑（benzotriazole)、氰基丙烯 酸酯（cyanoacrylate)、水揚酸鹽（saiiCyiate)及鎳錯合物 200837409File: TW4187F Sex. Therefore, a hindered amine can be used as a light stabilizer. The light stabilizer is generally used together with an ultraviolet light absorber insofar as it does not affect the properties of the present invention. The antistatic agent prevents the front crucible 210 and the light guide plate 200 from being charged by eliminating the space charge formed on the front crucible 210 and the light guide plate 200'. In addition, the polymer resin used to manufacture the light guide plate 200 and the front cymbal 210 has a high surface resistance, so that the polymer resin is easily charged by static electricity, causing dust or the like to be adsorbed on the front cymbal, resulting in the vision of the light guide plate. The quality is degraded and the luminous efficiency is lowered. Therefore, the antistatic agent is used to prevent the change of the color of the lamp. For example, the antistatic agent includes at least one of the following compounds: poly(ether imide amide), poly(ether ester), polyether g, ammonia p〇ly (ether) Ester amide), polyalkylene glycol, dodecylbenzene sulfonic acid alkaline metal, tertiary amine, quaternary ammonium, salt and alkyl Alkyl amines. J UV absorbers are used to block the ultraviolet light emitted by source 206 (see Figure 4). Any UV absorber that absorbs wavelengths from 250 nm to 280 nm can be used. The longest wavelength absorbed by the ultraviolet light receiving agent is preferably between 250 nm and 320 nm, which improves the light resistance of the light guide plate 200 and suppresses the coloring problem caused by the absorption of ultraviolet light by the diffusing plate. For example, 'ultraviolet light absorbers include at least one of the following: benzophenone, benzotriazole, cyanoacrylate, salicylate, and nickel complex. 200837409
File:TW4187F (nickel complex) 〇 請參照第4圖，前稜鏡210之橫剖面為三角形。然而， 前稜鏡210並不以此為限，而可具有不同之橫剖面形狀。 • 第7圖至第9圖繪示依照本發明之液晶顯示裝置之背 光模組之導光板之數種前稜鏡210之剖面形狀之示意圖。 如第7圖所示，前稜鏡210彼此之間可緊密相連而無 間距。 前棱鏡210彼此之間非緊密相鄰而具有一預定間距 P 係用以改善光線之均齊度及可視性。但當使用本發明之光 擴散材料時，即使前稜鏡210彼此之間無間距相隔，仍可 達到相同的效果。 前棱鏡210之橫剖面可為如第8圖所示之梯形，或為 如第9圖所示之具有一尖端之倒溝形（reverse-groove)，且 其側表面具有一預定之曲率半徑。 當前棱鏡210之橫剖面為如第8圖所示之梯形時，光 線係先通過梯形前稜鏡210之上部平面A，而後垂直行進 ϋ 至液晶顯示裝置之面板（圖中未顯示）。 當前棱鏡210為如第9圖所示之倒溝形時，前稜鏡 210之側表面之曲率半徑較佳地介於0.01 nm至l.Onm之 間。 前稜鏡210可形成於前表面203之鄰近於液晶顯示裝 置之面板（圖中未顯示）的一側，或是形成於前表面203 之另外一側。 第7圖至第9圖僅繪示前棱鏡210具有突出之圖案之 18 200837409File:TW4187F (nickel complex) 〇 Refer to Figure 4, the cross section of the front 稜鏡210 is a triangle. However, the front sill 210 is not limited thereto but may have a different cross-sectional shape. 7 to 9 are schematic views showing the cross-sectional shapes of the plurality of front cymbals 210 of the light guide plate of the backlight module of the liquid crystal display device according to the present invention. As shown in Fig. 7, the front cymbals 210 can be closely connected to each other without a gap. The front prisms 210 are not closely adjacent to one another and have a predetermined spacing P to improve the uniformity and visibility of the light. However, when the light diffusing material of the present invention is used, the same effect can be attained even if the front sills 210 are spaced apart from each other without a gap. The cross section of the front prism 210 may be a trapezoid as shown in Fig. 8, or a reverse-groove having a tip as shown in Fig. 9, and a side surface thereof has a predetermined radius of curvature. When the cross section of the prism 210 is a trapezoid as shown in Fig. 8, the light line first passes through the upper plane A of the trapezoidal front cymbal 210, and then travels vertically to the panel of the liquid crystal display device (not shown). When the prism 210 is in the shape of an inverted groove as shown in Fig. 9, the radius of curvature of the side surface of the front cymbal 210 is preferably between 0.01 nm and 1.0 nm. The front cymbal 210 may be formed on a side of the front surface 203 adjacent to a panel (not shown) of the liquid crystal display device or on the other side of the front surface 203. 7 to 9 only show that the front prism 210 has a prominent pattern 18 200837409
File:TW4187F 範例，然而前稜鏡210亦可具有凹陷之形狀，而仍達到相 同或類似的效果。 較佳地’前稜鏡21〇在上表面203上所佔據之面積與 前稜鏡210間之間隔在上表面203上之面積的比例係介於 1:0.5 至 1:10。 第7圖至第9圖中之每一個前棱鏡21〇之高度h與 間距％之比例較佳地係介於〇.3至〇·6之間。當前棱鏡210 之南度h與間距W2之比例小於〇·3時，水平視角增加到 Γ、 、 非必要之程度，因而降低了亮度。當前稜鏡210之高度h2 與間距w2之比例超過〇·5時，水平視角亦減低至非必要之 程度，使得光學特性不符合要求。 主體200之後表面205之光學圖案可反射光源發出並 入射至主體200之光線，並將此些光線反射至前表面203。 請參照第4圖，主體200之後表面205具有數個點狀 稜鏡。此些點狀稜鏡係依照一定方式排列，使得點狀棱鏡 之間以一預定距離相隔。以下稱點狀稜鏡為點稜鏡220。 (； 點稜鏡22 0係用以反射進入導光板2 0 0並行進至後表 面205之光線。點稜鏡220之排列係以一預定距離相隔， 如第4圖所示，但亦可以其他形式排列。 第10圖繪示第4圖所示之本發明之點稜鏡220之放 大剖面圖。 如第10圖所示’每一個點稜鏡220之表面具有數個 稜鏡部222，此些稜鏡部222具有一預定之剖面形狀（第 10圖所示之棱鏡部之剖面為三角形）。 19 200837409File: TW4187F example, however, the front sill 210 may also have a concave shape while still achieving the same or similar effects. Preferably, the ratio of the area occupied by the front 稜鏡 21 〇 on the upper surface 203 to the area of the upper 203 210 on the upper surface 203 is between 1:0.5 and 1:10. The ratio of the height h to the pitch % of each of the front prisms 21A in Figs. 7 to 9 is preferably between 〇.3 and 〇6. When the ratio of the southness h of the prism 210 to the pitch W2 is less than 〇·3, the horizontal viewing angle is increased to Γ, and is unnecessary, thereby lowering the brightness. When the ratio of the height h2 of the 稜鏡210 to the pitch w2 exceeds 〇·5, the horizontal viewing angle is also reduced to an unnecessary degree, so that the optical characteristics are not satisfactory. The optical pattern of the rear surface 205 of the body 200 reflects the light emitted by the light source and incident on the body 200 and reflects the light to the front surface 203. Referring to Figure 4, the surface 205 of the body 200 has a plurality of dot-like turns. The punctate ridges are arranged in such a way that the point prisms are separated by a predetermined distance. Hereinafter, the spot shape is referred to as point 220. (; point 22 0 is used to reflect light entering the light guide plate 200 and traveling to the rear surface 205. The arrangement of the dots 220 is separated by a predetermined distance, as shown in Fig. 4, but other Fig. 10 is an enlarged cross-sectional view showing the point 220 of the present invention shown in Fig. 4. As shown in Fig. 10, the surface of each of the points 220 has a plurality of crotch portions 222, The crotch portion 222 has a predetermined cross-sectional shape (the prism portion shown in Fig. 10 has a triangular cross section). 19 200837409
File:TW4187F 形成於點棱鏡220表面上之每一個棱鏡部222之延伸 方向係較佳地垂直於光源206發出光線之方向（箭頭Q所 顯示之方向）。當稜鏡部222之延伸方向垂直於光源206 ' 發出光線之方向（箭頭Q所顯示之方向）時，光線可被適 當地折射及擴散。 如上所述，形成於點棱鏡220之稜鏡部222之延伸方 向係較佳地垂直於前稜鏡210之縱向（亦即稜鏡部222之 延伸方向垂直於箭頭Q所顯示之方向）。稜鏡部222係用 ^ 以折射並擴散光線。藉此，當稜鏡部222之延伸方向係垂 直於前稜鏡210之縱向時，光線係被均勻地折射及擴散。 當形成於每一個點稜鏡220之表面之稜鏡部222之橫 剖面為如第10圖所示之三角形時，三角形之内角Θ!較佳 地介於75度至90度之間。當内角小於75度或大於90 度時可增加光線射出之方向與垂直於背光模組之前表面 之方向之間所夾的角度，因而減低了中央部分的亮度。 除此之外，形成於每一個點稜鏡220之稜鏡部222之 I， 高度h!與間距Wl之比例係較佳地介於0.5至0.7之間。當 點棱鏡220之稜鏡部222之高度h!與間距w!之比例小於 〇·5或大於0.7時會增加光線射出之方向與垂直於背光模 組之前表面之方向之間所夾的角度，因而減低了中央部分 的亮度。 第11圖至第14圖繪示不同形狀之數種點棱鏡。 如第11圖至第14圖所示，每一個點稜鏡220具有數 個棱鏡部222。每一個點稜鏡220係為圓形（如第11圖所 20 200837409File: TW4187F The direction in which each of the prism portions 222 formed on the surface of the point prism 220 extends is preferably perpendicular to the direction in which the light source 206 emits light (the direction indicated by the arrow Q). When the direction in which the crotch portion 222 extends is perpendicular to the direction in which the light source 206' emits light (the direction indicated by the arrow Q), the light can be appropriately refracted and diffused. As described above, the extending direction of the weir portion 222 formed in the point prism 220 is preferably perpendicular to the longitudinal direction of the front weir 210 (i.e., the direction in which the weir portion 222 extends is perpendicular to the direction indicated by the arrow Q). The crotch portion 222 uses ^ to refract and diffuse light. Thereby, when the extending direction of the weir portion 222 is perpendicular to the longitudinal direction of the front weir 210, the light is uniformly refracted and diffused. When the cross section of the crotch portion 222 formed on the surface of each of the dots 220 is a triangle as shown in Fig. 10, the inner angle 三角形 of the triangle is preferably between 75 and 90 degrees. When the internal angle is less than 75 degrees or greater than 90 degrees, the angle between the direction in which the light is emitted and the direction perpendicular to the front surface of the backlight module is increased, thereby reducing the brightness of the central portion. In addition to this, the ratio of the height h! to the pitch W1 formed in the weir portion 222 of each of the dots 220 is preferably between 0.5 and 0.7. When the ratio of the height h! of the ridge portion 222 of the point prism 220 to the pitch w! is less than 〇·5 or greater than 0.7, the angle between the direction in which the light is emitted and the direction perpendicular to the front surface of the backlight module is increased. Thus the brightness of the central portion is reduced. Figures 11 through 14 illustrate several types of point prisms of different shapes. As shown in Figs. 11 to 14, each of the dots 220 has a plurality of prism portions 222. Each point 220 is circular (as in Figure 11 20 200837409
File:TW4187F 示）、橢圓形（如第12圖所示）、菱形（如第13圖所示） 或矩形（如第14圖所示）。此些點棱鏡220之形狀亦可為 圓形、橢圓形、菱形及矩形之組合。 ' 當每一個點稜鏡220之形狀為第12圖所示之橢圓形 時，橢圓形之短軸與長軸之比例較佳地介於0.5至0.9之 間。 當橢圓形之短軸與長軸之比例小於0.5時會降低光學 性質，例如是降低了光線之折射與擴散。當橢圓形之短軸 f ^ 、 與長軸超過0.9時會降低可視性。 雖然點棱鏡220可為不同之形狀，點棱鏡220之形狀 更佳地為如第12圖所示之橢圓形。 當主體之内側表面定義為一側，而主體之外側表面定 義為另一側時，點稜鏡220可形成於主體200之後表面205 之一側，或形成於前表面203之另一側。 第15圖至第17圖繪示依照本發明之液晶顯示裝置之 背光模組之導光板由主體200 (請參照第4圖）下方所視 {) 之平面圖，以顯示點棱鏡222之排列方式。 第15圖繪示點稜鏡220為第12圖所示之橢圓形時之 一種排列方式。由光源206 (請參照第4圖）所發出之光 線係入射至導光板之主體200之兩相對側表面201。 如第15圖所示，當由光源206發出之光線入射至兩 側表面201時，點稜鏡220之大小（點稜鏡在後表面上所 佔據之面積）係由鄰近側表面201之兩側而向内漸漸增大。 由於光線距離側表面201之距離越遠時，光線變得越 21 200837409File: TW4187F), ellipse (as shown in Figure 12), diamond (as shown in Figure 13) or rectangular (as shown in Figure 14). The shape of the dot prisms 220 may also be a combination of a circle, an ellipse, a diamond, and a rectangle. When the shape of each dot 220 is an ellipse as shown in Fig. 12, the ratio of the minor axis to the major axis of the ellipse is preferably between 0.5 and 0.9. When the ratio of the minor axis to the major axis of the ellipse is less than 0.5, the optical properties are lowered, for example, the refraction and diffusion of light are reduced. When the short axis f ^ of the ellipse and the long axis exceed 0.9, the visibility is lowered. Although the dot prism 220 may have a different shape, the shape of the dot prism 220 is more preferably an elliptical shape as shown in Fig. 12. When the inner side surface of the main body is defined as one side and the outer side surface of the main body is defined as the other side, the point 稜鏡 220 may be formed on one side of the rear surface 205 of the main body 200 or on the other side of the front surface 203. 15 to 17 are plan views showing the light guide plate of the backlight module of the liquid crystal display device according to the present invention as viewed from the lower side of the main body 200 (refer to FIG. 4) to show the arrangement of the dot prisms 222. Fig. 15 is a view showing an arrangement of the point 220 when it is an ellipse shown in Fig. 12. The light emitted from the light source 206 (please refer to Fig. 4) is incident on the opposite side surfaces 201 of the main body 200 of the light guide plate. As shown in Fig. 15, when the light emitted by the light source 206 is incident on the both side surfaces 201, the size of the spot 220 (the area occupied by the dot on the rear surface) is from the sides of the adjacent side surface 201. And gradually increase inward. The farther the light is from the distance from the side surface 201, the more the light becomes 21 200837409
File:TW4187F 疏離，亦即光量變得越少。因此點稜鏡220之大小係由鄰 近側表面201之兩側而向内漸漸增加。藉此，即使到達中 央處之光量較少，由於用以折射及反射光線之點稜鏡220 * 之尺寸變大，使得被折射及反射之光量得以增加。 第16圖繪示點稜鏡220為第12圖所示之橢圓形時之 另一種排列方式。由光源206 (請參照第4圖）所發出之 光線係入射至導光板之主體200之兩相對側表面201之 如第16圖所示，當由光源206發出之光線入射至兩 相對側表面201之一時，點棱鏡220之大小（點棱鏡在後 表面上所佔據之面積）係由鄰近光源206之側表面201而 向另一側表面201漸漸增大。 第17圖繪示點稜鏡220之另一種排列方式。 如第17圖所示，主體220 (請參照第4圖）之後表 面205除了具有第15圖及第16圖所示之點稜鏡220之 外，可更進一步包括數個第二點棱鏡225。此些第二點稜 鏡225係配置於點稜鏡220間之空間，亦即格狀空間。每 一個第二點棱鏡225之棱鏡部之延伸方向係不平行於點稜 鏡220上之棱鏡部222 (如第10圖所示）之縱向。 配置第二點棱鏡225是為了增加光線之折射率與反 射率。 雖然點稜鏡220亦可為如第11圖至第14圖所示之圓 形、菱形或矩形，此處之點棱鏡220係為橢圓形，如第15 圖至第17圖所示。在此情況下，當點稜鏡220漸漸遠離 22 200837409File: TW4187F is alienated, that is, the amount of light becomes less. Therefore, the size of the spot 220 is gradually increased inwardly from both sides of the adjacent side surface 201. Thereby, even if the amount of light reaching the center is small, the amount of light refracted and reflected is increased due to the size of the point 稜鏡 220 * for refracting and reflecting light. Fig. 16 is a view showing another arrangement of the point 220 when it is an ellipse shown in Fig. 12. The light emitted by the light source 206 (refer to FIG. 4) is incident on the opposite side surfaces 201 of the main body 200 of the light guide plate as shown in FIG. 16, when the light emitted from the light source 206 is incident on the opposite side surfaces 201. In one case, the size of the dot prism 220 (the area occupied by the dot prism on the rear surface) is gradually increased from the side surface 201 adjacent to the light source 206 to the other side surface 201. Figure 17 illustrates another arrangement of the dots 220. As shown in Fig. 17, after the main body 220 (please refer to Fig. 4), the surface 205 may further include a plurality of second point prisms 225 in addition to the dots 220 shown in Figs. 15 and 16. The second point prisms 225 are disposed in a space between the dots 220, that is, a lattice space. The extending direction of the prism portion of each of the second point prisms 225 is not parallel to the longitudinal direction of the prism portion 222 (shown in Fig. 10) on the prism lens 220. The second point prism 225 is configured to increase the refractive index and reflectance of the light. Although the dot 220 may be a circle, a diamond or a rectangle as shown in Figs. 11 to 14, the dot prism 220 here is elliptical as shown in Figs. 15 to 17. In this case, when the point 220 is gradually away from 22 200837409
File:TW4187F 光線所入射之側表面20 1時，其大小係漸漸增加。 雖然第二點稜鏡225亦可為三角形、矩形、五邊形、 六邊形、橢圓形、菱形或其他形狀，第17圖所示之第二 點棱鏡225係為圓形。 如第15圖至第17圖所示，點稜鏡220係縱向及交叉 地排列於導光板之主體200 (請參照第4圖）之後表面 205，並為Z字形方式排列。因此，奇數列之點稜鏡220 不與偶數列之點棱鏡220重疊。 f 點棱鏡220排列為上述之Z字形方式是由於考慮了光 線行進之方向，用以增加點稜鏡之作用，使得射出之光線 的均齊度得以增加，並改善可視性。 第18圖及第19圖繪示本發明之主體200之後表面 205上之其他種光學圖案。更具體地來說，第18圖及第 19圖繪示具有條狀圖案320之導光板。 第18圖繪示當由光源206 (請參照第4圖）發出之 光線入射至導光板200之相對兩側時，條狀圖案320之排 〇 列方式。 如第18圖及第19圖所示，導光板200之後表面205 具有條狀圖案320，且每一個條狀圖案320具有數個稜鏡 322 〇 此處之稜鏡322之功用係與上述之稜鏡部222之功用 相同。 以下敘述設置第18圖及第19圖之條狀圖案320之原 因0 23 200837409File: TW4187F When the side surface of the light incident on the surface is 20 1 , its size gradually increases. Although the second point 225 may be a triangle, a rectangle, a pentagon, a hexagon, an ellipse, a diamond or the like, the second point prism 225 shown in Fig. 17 is circular. As shown in Figs. 15 to 17, the dots 220 are arranged longitudinally and crosswise in the front surface 205 of the main body 200 (see Fig. 4) of the light guide plate, and are arranged in a zigzag manner. Therefore, the odd-numbered column 稜鏡 220 does not overlap with the even-numbered column prism 220. The f-point prism 220 is arranged in the above-described zigzag manner in consideration of the direction in which the light travels, in order to increase the effect of the click, so that the uniformity of the emitted light is increased, and the visibility is improved. Figures 18 and 19 illustrate other optical patterns on the surface 205 of the body 200 of the present invention. More specifically, Figs. 18 and 19 illustrate a light guide plate having a stripe pattern 320. Figure 18 is a diagram showing the arrangement of the strip patterns 320 when light rays emitted from the light source 206 (refer to Fig. 4) are incident on opposite sides of the light guide plate 200. As shown in FIGS. 18 and 19, the rear surface 205 of the light guide plate 200 has a strip pattern 320, and each strip pattern 320 has a plurality of 稜鏡322 〇 〇 322 functions and the above-mentioned ribs The mirror portion 222 has the same function. The reason for setting the strip pattern 320 of Figs. 18 and 19 will be described below. 0 23 200837409
File:TW4187F 如第18圖所示，當光源射出之光線入射至鄰近光源 之兩側表面201時，條狀圖案320之寬度隨著光線前進之 方向，由兩側向中間部分漸漸增加。 由於光線係由兩側表面201向中央部分前進，當光線 遠離側表面201時，光量漸漸減少。因此，沿著光線前進 之方向，亦即由兩側向中央之方向增加用以折射及反射之 條狀圖案320之寬度，藉以增加光線的折射量及反射量。 第19圖繪示當光源206發出之光線入射至導光板200 ( 之一側時，條狀圖案320之排列方式。 如第19圖所示，當光線僅入射至導光板之一側時， 條狀圖案320之寬度係沿著光線前進之方向，由一側向相 對之另一側增加。 第20圖及第21圖繪示另兩種條狀圖案。 請參照第20圖，主體200之後表面205具有另一種 條狀圖案320，且條狀圖案320之寬度係沿著光線由兩側 表面201向中央行進之方向而增加。然而，後表面205之 角落部分，亦即，如第20圖所示之非光線入射之兩側， 其四個角落之條狀圖案320之寬度或形成於條狀圖案320 上之棱鏡322之長度係為增加，藉以克服後表面205在四 個角落處之可視性或亮度降低之問題。 因此，後表面上靠近光源之角落部分之條狀圖案320 的寬度係為增加，而抑制了角落部分暗帶之發生。 請參照第21圖，條狀圖案320上之棱鏡322較佳地 以一距離彼此相隔，稜鏡322更佳地彼此相鄰。當調整條 24 200837409File: TW4187F As shown in Fig. 18, when the light emitted from the light source is incident on the both side surfaces 201 of the adjacent light source, the width of the strip pattern 320 gradually increases from the both sides toward the middle portion as the light advances. Since the light is advanced from the both side surfaces 201 toward the central portion, the amount of light gradually decreases as the light is away from the side surface 201. Therefore, the width of the strip pattern 320 for refraction and reflection is increased in the direction in which the light advances, that is, from the sides toward the center, thereby increasing the amount of refraction and the amount of reflection of the light. Figure 19 is a diagram showing the arrangement of the strip patterns 320 when the light emitted from the light source 206 is incident on one side of the light guide plate 200. As shown in Fig. 19, when the light is incident only on one side of the light guide plate, The width of the pattern 320 is increased along the direction in which the light advances, from one side to the other side. Figures 20 and 21 illustrate two other strip patterns. Referring to Figure 20, the back surface of the body 200 205 has another strip pattern 320, and the width of the strip pattern 320 increases along the direction in which the light travels from the both sides 201 toward the center. However, the corner portion of the back surface 205, that is, as shown in Fig. 20 The width of the strip pattern 320 of the four corners or the length of the prism 322 formed on the strip pattern 320 is increased on both sides of the non-light incident, thereby overcoming the visibility of the rear surface 205 at the four corners. Or the problem of lowering the brightness. Therefore, the width of the strip pattern 320 on the rear surface near the corner portion of the light source is increased, and the occurrence of the dark portion of the corner portion is suppressed. Referring to Fig. 21, the prism on the strip pattern 320 322 preferably at a distance This apart, more preferably Prism 322 adjacent to each other. When adjustment bar 24 200 837 409
File:TW4187F 狀圖案320内之稜鏡322間的空間時，亦即調整條狀圖案 •内稜鏡322之間隔距離時，有可能準確地控制亮度及可視 性。 在不使用稜鏡片及擴散板的情況下，本發明之較佳實 施例之導光板使得光線在導光板内可充分地擴散。特別值 得-提的是，本發明之導光板可消除在導光板邊緣或角落 部分出現的亮暗帶問題。 由於本發明不需要使用傳統f光模組 稜鏡片，因此降低了背光模組之製造成本。、 ::I雖然本發明已以一較佳實施例揭露如上， ϋΐ非用以限疋本發明。本發明所屬技術領域中具有通 吊知識者’在不脫離本發明之精神和範圍内，當可作各種File: When the space between 322 and 322 in the TW4187F pattern 320 is adjusted, that is, the strip pattern is adjusted. • When the distance between the inner and the second sides is 322, it is possible to accurately control the brightness and visibility. In the case where the cymbal sheet and the diffusion plate are not used, the light guide plate of the preferred embodiment of the present invention allows light to be sufficiently diffused in the light guide plate. It is particularly appreciated that the light guide of the present invention eliminates the problem of bright and dark bands that appear at the edges or corners of the light guide. Since the present invention does not require the use of a conventional f-light module cymbal, the manufacturing cost of the backlight module is reduced. The invention has been disclosed above in a preferred embodiment, and is not intended to limit the invention. Those skilled in the art to which the invention pertains can be made variously without departing from the spirit and scope of the invention.
U :更ί:潤飾。因此，本發明之保護範圍當視後附之申請 專利範圍所界定者為準。 25 200837409U : More ί: Retouching. Therefore, the scope of the invention is defined by the scope of the appended claims. 25 200837409
File:TW4187F 【圖式簡單說明】 第1圖繪示一種傳統液晶顯示裝置之背光模組之分 解圖； • 第2圖及第3圖繪示導光板之剖面放大圖，並繪示由 光源發出之光線通過導光板時之行進方向； 第4圖繪示本發明一較佳實施例之液晶顯示裝置之 背光模組之導光板之示意圖； 第5圖及第6圖分別繪示沿著第四圖中之A-B線之 ( 剖面圖； 第7圖至第9圖繪示依照本發明之液晶顯示裝置之背 光模組之導光板之數種前棱鏡之剖面形狀之示意圖； 第10圖繪示第4圖所示之本發明之點棱鏡之放大剖 面圖； 第11圖至第14圖繪示不同形狀之數種點稜鏡； 第15圖至第17圖繪示依照本發明之液晶顯示裝置之 背光模組之導光板由主體下方所視之平面圖，以顯示點稜 C / ' 鏡之排列方式； 第18圖及第19圖繪示本發明之主體之後表面上之其 他種光學圖案，以顯示具有條狀圖案之導光板；以及 第20圖及第21圖繪示另兩種條狀圖案。 【主要元件符號說明】 10 :背光模組 20 :導光板 26 200837409File: TW4187F [Simple description of the drawing] FIG. 1 is an exploded view of a backlight module of a conventional liquid crystal display device; • FIGS. 2 and 3 are enlarged cross-sectional views of the light guide plate, and are illustrated by a light source 4 is a schematic view of a light guide plate of a backlight module of a liquid crystal display device according to a preferred embodiment of the present invention; FIGS. 5 and 6 are respectively shown along the fourth Figure 7 is a cross-sectional view of the light guide plate of the backlight module of the liquid crystal display device according to the present invention; Figure 10 is a schematic view showing the cross-sectional shape of the front prisms of the light guide plate of the backlight module of the liquid crystal display device of the present invention; 4 is an enlarged sectional view of the dot prism of the present invention shown in FIG. 11; FIG. 11 to FIG. 14 are diagrams showing a plurality of dots of different shapes; and FIGS. 15 to 17 are views showing a liquid crystal display device according to the present invention. The light guide plate of the backlight module is viewed from the bottom of the main body to show the arrangement of the dot C / 'mirrors; 18 and 19 show other optical patterns on the surface of the main body of the present invention to display Light guide plate with strip pattern; and 20th FIG. 21 shows the second two other main elements of a stripe pattern [Description of Symbols] 10: backlight module 20: the light guide plate 26200837409
File:TW4187F 100 :液晶顯示面板 105、206 :光源 112、20 :導光板 * 113 :凸部或凹部 115 :反射板 120 :擴散板 125 :稜鏡片 130 :保護板 ( 200 :主體 201 ··第一側表面 202 :第二側表面 203 ··前表面 205 :後表面 210 ··前稜鏡 211 :光擴散材料 220 :點稜鏡 () 222 :棱鏡部 225 :第二點稜鏡 320 :條狀圖案 322 :稜鏡 L :光線 27File: TW4187F 100 : Liquid crystal display panel 105, 206 : Light source 112 , 20 : Light guide plate * 113 : Projection or recess 115 : Reflector 120 : Diffuser plate 125 : Foil 130 : Protective plate ( 200 : Main body 201 · · One side surface 202: second side surface 203 · front surface 205: rear surface 210 · front 稜鏡 211 : light diffusing material 220 : point 稜鏡 () 222 : prism portion 225 : second point 稜鏡 320 : strip Pattern 322 : 稜鏡L : light 27
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070025241A KR100880724B1 (en) | 2007-03-14 | 2007-03-14 | Light guide panel for liquid crystal display having light diffusion material and back light unit using thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200837409A true TW200837409A (en) | 2008-09-16 |
| TWI461761B TWI461761B (en) | 2014-11-21 |
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ID=39759641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW096144892A TWI461761B (en) | 2007-03-14 | 2007-11-26 | Light guide panel for liquid crystal display having light diffusion material and back light unit using thereof |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR100880724B1 (en) |
| CN (1) | CN101641619B (en) |
| TW (1) | TWI461761B (en) |
| WO (1) | WO2008111718A1 (en) |
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| US8520984B2 (en) * | 2009-06-12 | 2013-08-27 | Cisco Technology, Inc. | Silicon-based optical modulator with improved efficiency and chirp control |
| KR101184518B1 (en) * | 2010-03-04 | 2012-09-19 | 에스에스씨피 주식회사 | Light unit, and liquid crystal display |
| JP2011222237A (en) * | 2010-04-07 | 2011-11-04 | Sony Corp | Lighting system and display device |
| JP5422473B2 (en) * | 2010-04-09 | 2014-02-19 | 日立コンシューマエレクトロニクス株式会社 | Video display device and backlight device used therefor |
| EP2407346B1 (en) | 2010-07-15 | 2016-06-01 | SMR Patents S.à.r.l. | Lighting element for homogenous appearance |
| CN101967258B (en) * | 2010-09-26 | 2012-12-05 | 贵州天控自动化信息工程有限公司 | Process for preparing light-scattering polymer light guide plate by using mold transferring dot matrix method |
| KR102157549B1 (en) * | 2010-10-15 | 2020-09-21 | 엘지디스플레이 주식회사 | Backlight Unit and Liquid Crystal Display Device having the same |
| KR101034312B1 (en) * | 2010-11-29 | 2011-05-16 | 도레이첨단소재 주식회사 | Light guiding plate for surface light source device and back light unit using the same |
| KR101034313B1 (en) * | 2010-11-29 | 2011-05-16 | 도레이첨단소재 주식회사 | Light guiding plate for surface light source device and back light unit using the same |
| JP5664560B2 (en) * | 2011-01-26 | 2015-02-04 | 信越化学工業株式会社 | Light diffusing dimethyl silicone rubber composition |
| CN102129098A (en) * | 2011-04-26 | 2011-07-20 | 苏州茂立光电科技有限公司 | Light guiding plate, manufacturing method of light guiding plate and side emitting type backlight module |
| JP5503621B2 (en) * | 2011-10-28 | 2014-05-28 | 住友化学株式会社 | Light guide plate |
| KR101891569B1 (en) * | 2012-02-29 | 2018-08-28 | 한국전자통신연구원 | Face Lighting Apparatus |
| KR101278347B1 (en) * | 2012-08-22 | 2013-06-25 | 주식회사 세코닉스 | A Optical Film Having Amorphous Pattern and a Method for Manufacturing the Same |
| KR101584396B1 (en) * | 2012-10-31 | 2016-01-11 | 제일모직주식회사 | Light guide plate and transparent display device comprising the same |
| CN105319641A (en) * | 2014-07-31 | 2016-02-10 | 三星Sdi株式会社 | Light guide plate, method for fabricating same, backlight unit, and liquid crystal display |
| KR102324866B1 (en) * | 2015-05-26 | 2021-11-12 | 엘지디스플레이 주식회사 | Back Light Unit, Liquid Crystal Display Device and Driving Method thereof |
| CN105116598B (en) * | 2015-09-11 | 2018-09-28 | 青岛海信电器股份有限公司 | A kind of backlight module, prismatic lens and television set |
| CN106996544B (en) | 2016-01-26 | 2019-09-06 | 瑞仪光电(苏州)有限公司 | Prismatic lens, backlight module |
| CN105759328B (en) * | 2016-05-17 | 2019-07-30 | 京东方科技集团股份有限公司 | A kind of divergence of beam mechanism, backlight module and display device |
| JP7162181B2 (en) * | 2018-03-12 | 2022-10-28 | パナソニックＩｐマネジメント株式会社 | Light guide plate and lighting device |
| CN109143680A (en) * | 2018-08-31 | 2019-01-04 | 青岛海信电器股份有限公司 | A kind of backlight module and display device |
| KR20200144845A (en) * | 2019-06-19 | 2020-12-30 | 코닝 인코포레이티드 | Transparent light guide plate and lighting device having the same |
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| KR100783607B1 (en) * | 2000-06-23 | 2007-12-07 | 삼성전자주식회사 | Backlight unit for lcd |
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| JP2006040710A (en) * | 2004-07-27 | 2006-02-09 | Nissen Chemitec Corp | Light guide plate and planar lighting system using it |
| KR100637750B1 (en) * | 2004-10-13 | 2006-10-24 | 엘지마이크론 주식회사 | Upright type back light unit |
| KR20060046929A (en) * | 2004-11-12 | 2006-05-18 | 비나텍주식회사 | The display device having light guide plate for white light changing |
| KR20060077515A (en) * | 2004-12-30 | 2006-07-05 | 주식회사 엘지에스 | Back-light unit |
| JP2006196384A (en) * | 2005-01-17 | 2006-07-27 | Main Source Technology Co Ltd | Backlight module |
-
2007
- 2007-03-14 KR KR1020070025241A patent/KR100880724B1/en active IP Right Grant
- 2007-11-26 CN CN200780052144XA patent/CN101641619B/en not_active Expired - Fee Related
- 2007-11-26 TW TW096144892A patent/TWI461761B/en not_active IP Right Cessation
- 2007-11-26 WO PCT/KR2007/005971 patent/WO2008111718A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| TWI461761B (en) | 2014-11-21 |
| CN101641619A (en) | 2010-02-03 |
| KR20080084090A (en) | 2008-09-19 |
| CN101641619B (en) | 2013-01-02 |
| KR100880724B1 (en) | 2009-02-02 |
| WO2008111718A1 (en) | 2008-09-18 |
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