CN100363812C - Backlight module and linear light source thereof - Google Patents

Backlight module and linear light source thereof Download PDF

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CN100363812C
CN100363812C CN 03146803 CN03146803A CN100363812C CN 100363812 C CN100363812 C CN 100363812C CN 03146803 CN03146803 CN 03146803 CN 03146803 A CN03146803 A CN 03146803A CN 100363812 C CN100363812 C CN 100363812C
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light
light source
backlight module
linear
light guide
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CN 03146803
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Chinese (zh)
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CN1595256A (en
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张仁淙
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鸿富锦精密工业(深圳)有限公司;鸿海精密工业股份有限公司
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Abstract

本发明公开一种背光模组。 The present invention discloses a backlight module. 该背光模组包括导光板和至少一线性光源,该线性光源包括点光源、传输点光源所发光束的导光光纤和夹持导光光纤的透光体,该透光体设置匹配导光光纤的微扰结构,以使该导光光纤中的光束出射至该透光体中并自该透光体表面出射,来自线性光源的光束经由导光板转换成平面光出射。 The backlight module comprises at least one linear light source and a light guide plate, the linear light source comprises a point light source, issued light beam transmission point of the light guide fiber and the light-transmissive member holding a light guide fiber, the light-transmissive member is provided to match the light guide fiber the perturbation structure, so that the beam light guiding fiber to exit from the light-transmitting member and the exit surface of the translucent body, the light beam from the linear light source into the light guide plate through the light exit plane. 本发明背光模组具有光源耦合效率高、出光均匀度高等优点,适用于平面显示器和一般光学照明等多种场合。 The backlight module of the present invention has a high light coupling efficiency, uniformity and other advantages of high light, suitable for a flat panel display and general illumination and other optical applications.

Description

背光模组及其线性光源. A linear light source and a backlight module.

【技术领域】 TECHNICAL FIELD

本发明涉及一种背光模组及其线性光源,特别是指一种应用于液晶显示器的背光模组及其线性光源。 The present invention relates to a backlight module and a linear light source, and particularly to a liquid crystal display device is applied to a backlight module and a linear light source. 【背景技术】 【Background technique】

由于液晶显示器具有轻、薄、耗电小等优点,广泛应用于笔记本计算机、移动电话、个人数字助理等现代化信息设备。 Since the liquid crystal display has a light, thin, small power consumption, etc., it is widely used in notebook computers, mobile phones, personal digital assistants and other modern information equipment. 因为液晶本身不具有发光特性,需要为其提供背光模组以实现显示功能。 Since the liquid crystal itself does not have the light emission characteristics, it is necessary to provide a backlight module in order to realize the display function. 背光模组需要具有较高的出光均匀度,从而提升采用该背光模组的液晶显,器的色彩对比度、全屏区域亮度效果和整机的可视角度。 The backlight module is required to have a high light uniformity, so as to enhance the use of the liquid crystal backlight module of display, contrast, viewing angle the color filter, and the effect of the full screen area luminance machine.

现有技术背光模组包括光源和导光板,光源相对导光板的光入射面设置,该导光板引导自光源发出光束的传输方向,将线光源或点光源转换成面光源出射。 Prior art backlight module includes a light source and a light guide plate, light guide plate opposite the light incident surface is provided, the light guide plate guiding light emitted from the transmission direction of the beam, converting the point light source or line light source into a surface light source emitted.

目前一般采用冷阴极荧光灯管作为光源,虽然冷阴极荧光灯管 The general cold cathode fluorescent lamp as a light source, although the CCFL

的出光辉度有不错的显示效果,但是其存在以下缺陷:冷阴极荧光灯管的两端发光辉度相对中间部分低,造成背光模组出光均匀度不高;冷阴极荧光灯管必须要高压且由交流电源供应,对便携式显示 The luminance has a good display effect, but the following disadvantages: low luminance of the intermediate portion of both ends of the cold cathode fluorescent tube opposite, resulting in uniform lighting backlight module is not high; cold cathode fluorescent lamp and a high pressure must be AC power supply, portable display

器是一项不利的缺陷,并且交流讯号会影响并干扰液晶显示器的影 It is an undesirable defect, and the AC signal will affect and interfere with the liquid crystal display Movies

像讯号;冷阴极荧光灯管为圓柱体发光,光能利用率低;冷阴极荧光灯管的寿命会受到温度影响而大幅降低;冷阴极荧光灯管无法分时产生不同波长的光,从而无法实现彩色化背光模组;另外,使用冷阴极焚光灯管的液晶显示器相对成本较高。 Image signal; cold cathode fluorescent tube emitting cylinder, low utilization of light; the life of the cold cathode fluorescent tubes will decrease sharply affected by temperature; cold cathode fluorescent tubes can not be divisionally generating light of different wavelengths, which can not achieve colorization the backlight module; Further, the cold cathode-ray tubes burning liquid crystal display relatively high cost.

为了克服冷阴极荧光灯管的缺陷,现有技术采用发光二极管或者其它点光源和导光棒结合成线性光源,具体可参见2003年5月21曰公告的中国台湾专利第534326号、2002年10月21日公告的中国台湾专利第507099号、2000年9月13日公告的中国专利第99103941号。 In order to overcome the drawbacks of the cold cathode fluorescent tube, the prior art light emitting diode or other point light sources and the light guide rod into a linear light source in conjunction, reference may be China Taiwan Patent No. 534326 on May 21, 2003, said announcement, October 2002 China Taiwan Patent No. 50,709,921 announcement, the Chinese Patent No. 99103941, 2000 September 13 announcement. 但是,这些现有技术存在导光棒和点光源耦合效率不高、导光棒设计复杂并且发光均匀度不高等缺点。 However, the presence of these prior art light guide rod and a point light source coupling efficiency is not high, the light guide rod and the light emitting uniformity of design complexity without disadvantages.

一种现有技术背光^t组可以参阅图l,其揭示于2002年7月10 日公告的中国专利第01227387号。 One prior art backlight ^ t group may refer to Figure l, which is disclosed in the July 10, 2002 announcement of the Chinese Patent No. 01227387. 该背光模组10由光传导板20、 导光棒30和两发光二极管40所组成。 The backlight module 10 is composed of 20, the light guide rod 30 and two light-emitting diodes 40 conducting plates. 该光传导板20包含两平行的上、下导光均匀板22、 24,导光均匀板22、 24上分别形成聚光图案和第一拦光图案。 The light conductive plate 20 comprises two parallel upper and lower light guide plate 22 uniformly, 24, the light guide plate 22 uniform, collecting respectively the first pattern and the light blocking pattern 24 is formed. 该导光棒30设置在光传导板20的一侧,其上设有第二和第三拦光图案,该两发光二极管40分别贴设在导光棒30的两端。 The light guide bar 30 disposed on the side of the light conducting plate 20, on which a second and third light blocking pattern, the two light emitting diodes 40 are attached at both ends of the light guide bar 30. 该两发光二极管40和导光棒30组合可形成线性光源, 但是,该现有技术背光模组10存在不足:由于是利用导光棒30的第二和第三拦光图案、光传导板20的拦光图案相互配合,以提升背光模组10的出光均匀度,其设计和结构复杂,并且该拦光图案的制作精度要求高,容易产生不良品;发光二极管40所发出的光束和导光棒30的耦合效率低,导致光能利用率低;采用拦光图案提升均匀度的效果也不够理想;另外,其无法将多种不同的色彩引入光传导板20,实现可变色彩背光模组的功能。 The two light emitting diodes 40 and the light guide rod 30 may be formed in combination of linear light sources, however, this prior art backlight module 10 shortcomings: because it is stopped by the second and third light pattern of the light guide rod 30, the light conducting plate 20 the bar light pattern cooperate with each other to improve the light uniformity of the backlight module 10, its complex design and construction, and the production of high precision of the bar light pattern prone to defective products; and the light guide light the light emitting diode 40 low coupling efficiency of 30 bar, resulting in low utilization of light; a light blocking pattern is employed to enhance the uniformity of the effect is not ideal; Further, it can not be introduced into a variety of different colors of light conducting plate 20 to achieve variable color backlight module function. 【发明内容】 [SUMMARY]

为了克服现有技术背光模组光能利用率和出光均匀度低的缺陷,本发明提供一种光能利用率高、出光均匀度较高的背光模组。 In order to overcome the prior art light efficiency of the backlight module and the low light uniformity defects, the present invention provides a high energy efficiency, a higher light uniformity of the backlight module. 本发明还提供一种光能利用率高、出光均匀度较高的线性光源。 The present invention further provides a light ray high efficiency, a high light uniformity of the linear light source. 本发明解决技术问题的技术方案是:提供一种背光模组,包括导光板和至少一线性光源,该线性光源包括点光源、传输点光源所 The present invention solves the technical solution Problem: to provide a backlight module, comprising at least one linear light source and a light guide plate, the linear light source comprises a point light source, the transmission point source

体,该透光体设置匹配导光光纤的微扰结构,以使该导光光纤中的光束出射至该透光体中并自该透光体表面出射,来自线性光源的光束经由导光板转换为平面光出射。 Body, the transparent body is provided to match the light guide fiber perturbation structure, so that the beam light guiding fiber to exit from the light-transmitting member and the exit surface of the translucent body, the light beam from the light source via a light guide plate converting linear the light exit plane.

本发明还提供一种线性光源,包括点光源、传输点光源所发光 The present invention further provides a linear light source comprising the point light source, a light source emitting transmission point

透光体设置匹配导光光纤的微扰结构,以使该导光光纤中的光束出射至该透光体中并自该透光体表面出射。 The light-transmitting member is provided to match the structure of the light guide fiber perturbation, so that the beam light guiding fiber to exit from the light-transmitting member and the light transmissive exit surface.

相较现有技术,本发明的有益效果是以:由于本发明背光模组采用包括点光源和导光光纤、透光板的线性光源,可以克服冷阴极 Compared with the prior art, the beneficial effects of the present invention is: Since the present invention employs the backlight module includes a point light source and a linear light source of the light guide fiber, light-transmitting sheet, a cold cathode can be overcome

荧光灯的缺陷;由于导光光纤和点光源之间的耦合效率高,可以提升光能利用率;利用透光板的微扰结构,使得光束在导光光纤内部的全反射条件得到破坏,从而均匀出射至导光板;另外,通过改变点光源的色彩、辉度和数目,还可以随意变换背光模组的显示色彩。 Fluorescent deficiencies; due to the high coupling efficiency between the optical fiber and the light guide light source, can enhance the light utilization; perturbation structure of the light-transmissive plate, such that the light beam in the total reflection condition to give damage the inside of the light guide fiber, so that a uniform to exit the light guide plate; further, by changing the color of a point light source, and the number of luminance, also free to change the display color of the backlight module. 【附图说明】 BRIEF DESCRIPTION

图1是一种现有技术背光模组的立体图。 FIG. 1 is a perspective view of a prior art backlight module.

图2是本发明线性光源第一实施方式的立体图。 FIG 2 is a perspective view of the linear light source to the first embodiment of the present invention.

图3是图2所示背光模组的側面视图。 FIG 3 is a side view of the backlight module 2 shown in FIG.

图4是图3的局部放大图。 FIG 4 is a partially enlarged view of Fig.

图5是本发明线性光源第二实施方式的立体图。 5 is a perspective view of the linear light source is a second embodiment of the present invention.

图6是本发明线性光源第三实施方式的点光源组合示意图。 FIG 6 is a schematic view of a combination of a point light source a linear light source to the third embodiment of the present invention.

图7是本发明背光模组第一实施方式的立体图。 7 is a perspective view of a backlight module of a first embodiment of the present invention.

图8是本发明背光模组第二实施方式的平面视图。 FIG 8 is a plan view of a backlight module of a second embodiment of the present invention. 【具体实施方式】 【Detailed ways】

请参阅图2和图3,是本发明线性光源第一实施方式。 Please refer to FIG. 2 and FIG. 3, the linear light source is a first embodiment of the present invention. 该线性光源100包括点光源110、传输点光源110所发光束的导光光纤140 和夹持导光光纤140的透光体120、 130。 The linear light source 100 includes a point light source 110, the transmission point source light beam 110 issued by the light guide fiber 140 and the light guide holder 140 of the light-transmitting fibers 120, 130.

该点光源110可以是小分子发光二极管或高分子发光二极管, 也可以采用激光二极管来增加辉度。 The point light source 110 may be a small molecule or polymer light-emitting diodes emitting diode, a laser diode may be used to increase the luminance.

该导光光纤140传输点光源IIO所发出的光束,其易于和点光源IIO相耦合,可以有效提升背光模组100的光能利用率,从而增加辉度。 IIO transmission point source beam 140 emitted from the light guide fiber, the point light source and which is easy to IIO coupled, can effectively improve the utilization of a back light module 100, thereby increasing luminance. 该导光光纤140 —般是高纯度的玻璃抽丝材质,为光束提供低损失的传输路径,其也可以是耐热塑料光纤,半径约为1000 ;敞米以下。 The light guide fiber 140 - as spinning of high purity glass material, providing a low-loss transmission path for the beam, which may be a heat resistant plastic optical fiber, a radius of about 1000; Chang meters.

该透光体120、 130夹持导光光纤140,其相对的表面122和132 设置匹配导光光纤140的微扰结构(未标示),使得部分光束因为导光光纤140的全反射条件被破坏而输出,且光束自透光体120的表面121出射。 The translucent body 120, 130 holding the light guide fiber 140, the facing surfaces 122 and 132 is provided to match the light guide fiber perturbation structure 140 (not shown), such that the portion of the beam because the total reflection condition of the light guide fiber 140 is damaged is output, and the beam 120 from the surface 121 of the light-transmitting member exit.

一并参阅图4,该透光体120、 130的材质选自光学级丙烯酸类聚合物、高分子聚合物、高分子碳化物、玻璃或石英其中之一,采 Referring to FIG. 4, the material is selected from optical grade acrylic polymer of the transparent member 120, 130, polymers, carbides polymer, wherein one of glass or quartz, Cai

用射出成型或裁切法制造,形状大致呈平行六面体,其相对的表面 By cutting or injection molding manufacturing method, substantially the shape of a parallelepiped, its opposite surfaces

122和132的微扰结构可以经由精密加工完成,使得夹持于其间的导光光纤140产生所需的曲率半径R,从而破坏光束在导光光纤140 内部的全反射条件,实现所需的线性光源的功能。 Perturbation structure 122 and 132 may be accomplished via precision machining, sandwiched therebetween such that the light guide fiber 140 to produce the desired radius of curvature R, thereby undermining the total reflection condition in the light beam inside the light guide fiber 140 to achieve the desired linear functional light sources.

该透光体120的表面121布设微透镜阵列123,聚集自表面121 出射的光束,从而提高线性光源IOO的辉度。 Laying the beam 121 of the surface 120 of the transparent microlens array 123, gathered from the exit surface 121, thereby increasing the luminance of the linear light source IOO. 该微透镜阵列123包括多条连续设置的微透镜条(未标示),当然,该多条微透镜条也可以间隔设置。 The microlens array 123 includes a plurality of microlenses strip (not shown), of course, the plurality of micro lenses may be spaced apart continuous strips arranged. 该微透镜条的横截面呈三角形,当然,其也可以是矩形、梯形等形状。 The microlens strip triangular cross-section, of course, it may be rectangular or trapezoidal shape. 该透光体120的表面也可以开设凹槽来替代该微透镜阵列123。 The light-transmitting surface 120 defines a recess may be used instead of the microlens array 123.

该透光体130的表面131设置反射膜(图未示),该反射膜是由Si02和Ti02交替形成的多层薄膜,使投射在其上的光束反射,防止光束自该表面131逸出,该反射膜可以采用化学气相沉积法、电子束蒸镀法、溅镀法等方法形成,其在可见光区的反射率可达98%以上。 Surface 130 of the transparent reflection film 131 (not shown), the reflective film is a multilayer film made of Si02 and Ti02 are alternately formed, the projection light beam reflected thereon, prevent light from escaping the surface 131, the reflective film may be used a chemical vapor deposition method, electron beam deposition method, a sputtering method or the like is formed, the reflectance in the visible light region up to 98%. 当然,该反射膜也可以是银、铝等金属反射膜,也可以邻近该表面131设置一反射板(图未示)来替代反射膜实现该功能。 Of course, the reflective film may be a metal reflective film of silver, aluminum or the like, may be disposed adjacent to the surface 131 a reflection plate (not shown) to achieve this function instead of the reflective film.

请参阅图5,是本发明线性光源第二实施方式。 Refer to FIG. 5, the linear light source is a second embodiment of the present invention. 该线性光源200 包括蓝色点光源211、绿色点光源212、红色点光源213、导光光纤241、 242、 243和透光体220、 230。 The linear light source 200 includes a blue point light sources 211, green point light source 212, a red point light source 213, a light guide fiber 241, 242, 243 and a light 220, 230. 其中,导光光纤241、 242和243分别耦合三点光源211、 212和213,引导点光源发出光束的传输方向,将其转换为线状光束出射。 Wherein the light guide fibers 241, 242 and 243 are respectively coupled to three light sources 211, 212 and 213, the guide point source transmission direction of the beam, which is converted into a linear beam exit. 透光体220、 230夹持导光光纤241、 242和243于其间。 Translucent body 220, 230 holding the optical fiber light guide 241, 242 and 243 therebetween.

该蓝色点光源211、绿色点光源212和红色点光源213通常是表面粘着型发光二极管或灯泡型发光二极管。 The blue point light source 211, a green and a red point light source 212 is a point light source 213 is typically surface mount type light emitting diode or bulb type light emitting diode. 该绿色点光源212的波长的峰值范围介于470nm至540nm之间,该红色点光源213的波长的峰值范围介于600nm至660nm之间。 The green peak wavelength range of the point light source 212 is between 470nm to 540nm, the peak wavelength range of the red point light source 213 is between 600nm to 660nm.

由于导光光纤241、 242和243的半径一般在IOOO微米以下, 因此可将不同色彩的点光源发出的光束同时组合在相同的透光体220和230之中,使线性光源200可以通过选择点亮不同色彩的点光源或调节不同点光源的色彩辉度来产生可变色彩的线状光束。 Since the beam 241, 243 and the radius of the light guide fiber 242 is generally IOOO m or less, may be different colors of light emitted at the same time points in the same light-transmitting composition 220 and 230, the linear light source 200 may select a point bright point light sources of different colors to adjust the color or luminance of the light sources is different from the linear beam to produce a variable color.

该透光体220、 230夹持导光光纤241、 242和243,其相对的表面222和232设置匹配导光光纤241、 242和243的微扰结构(未标示),并且光束自透光体220的表面221出射。 The translucent body 220, 230 holding the optical fiber light guide 241, 242 and 243, the facing surfaces 222 and 232 is provided to match the light guide fibers 241, 242 and 243 of the perturbation structure (not shown), and the light beam from the light-transmitting member 221 exit surface 220. 该透光体220的表面221布设微透镜阵列223,以聚集自表面221出射的光束,从而提高线性光源200的辉度。 The light-transmitting surface 220 of the microlens array layout 221 223, from the surface 221 to focus the light beam emitted, thereby improving the luminance of the linear light source 200. 当然,该透光体220的表面也可以加工成具有一定粗糙度的粗糙表面。 Of course, the surface of the transparent member 220 may also be processed into the roughened surface has a certain roughness.

该透光体230的表面231设置反射膜(图未示),该反射膜是银、 铝等金属反射膜,采用镀膜制程涂布于表面231,使投射在其上的光束反射,防止光束自该表面231逸出。 Surface 230 of the light-transmitting reflection film 231 (not shown), the reflective film is a metal reflective film of silver, aluminum or the like, using the coating process applied to the surface 231, the projection light beam reflected thereon, prevent the light beam from the the escape surface 231.

请参阅图6,是本发明点光源和导光光纤的另一耦合方式,一对多耦合器350将蓝色点光源311、绿色点光源312和红色点光源313同时耦合进入导光光纤340,再夹持在具微扰结构的透光体之间,通过调节点光源311、 312和313的驱动电源(图未示)选择点亮不同色彩的点光源或调节不同点光源的色彩辉度来产生可变色彩的线状光束。 Please refer to FIG. 6, the point light source is another embodiment of the present invention is coupled and a light guide fiber coupler 350 many blue point light sources 311, green light source 312 and the point 313 while the red point light coupled into the light guide fiber 340, then sandwiched between the light-transmitting body having a perturbation of the structure, by adjusting the point light source 311, power supply 312 and 313 (not shown) to select the point light source is turned to adjust the color of different colors or different brightness to the point light source linear beam to produce a variable color.

请参阅图7,是本发明背光模组第一实施方式。 Please refer to FIG. 7, the backlight module is a first embodiment of the present invention. 该背光模组90 包括线性光源400和导光板480,来自线性光源400的线性光束经导光板480转换成平面光出射。 The backlight module 90 includes a linear light source 400 and the light guide plate 480, the linear light from the linear light source 400 into the light guide plate through the light exit plane 480.

该线性光源400包括点光源410、传输点光源410所发光束的导光光纤440和夹持导光光纤440的透光体420、 430。 The linear light source 400 includes a point light source 410, the transmission point source light beam 410 issued by the light guide fiber 440 and the light guide holder 440 of the light-transmitting fibers 420, 430.

该导光板480是楔形导光板,釆用压克力、玻璃或聚碳酸酯等透明材质制成,其包括一光入射面481、和光入射面481相连的光出射面482以及和光出射面482相对的底面483。 The guide plate 480 is a wedge-shaped light guide plate, etc. made preclude acrylic, glass or polycarbonate transparent material, which includes 481, 481 and a light incident surface 482 and connected to the light exit surface and the light exit surface opposite a light incident surface 482 the bottom surface 483.

该光入射面481接收线性光源400发出的光束,其上耦合线性光源400发出的光束的区域可设置抗反射膜(图未示),提高光束利用率,进一步增强耦合效率。 Receiving the light beam emitted from the linear light source 400 of the light incident surface 481, on which the coupling region 400 of the light beam emitted from the linear light source may be provided an antireflection film (not shown), to improve the utilization of light, to further enhance the coupling efficiency. 该光出射面482可加工成具有一定粗糙度的粗糙面,提升自光出射面482出射光束的均匀性。 The light exit surface 482 can be processed into a rough surface having a certain roughness to enhance the light 482 from the uniformity of light beam exit surface. 该底面483 设置多个网点(图未示),该网点的大小可以沿远离光入射面481 的方向递增,也可以均匀分布在底面483,其可以是圆柱状、圆球状、正方体、金字塔形或其它合适的形状。 The bottom surface 483 is provided a plurality of outlets (not shown), the dot size may be a direction away from the light incident surface 481 is incremented, it may be uniformly distributed in the bottom surface 483, which may be cylindrical, spherical, cubic, pyramidal, or other suitable shapes. 该网点可以通过印刷或 The print dot by

射出成型等方式分布在底面483。 Injection molding distributed in the bottom surface 483. 另外,也可以在底面483设置多个V形槽(图未示)。 Further, 483 may be provided a plurality of V-shaped grooves (not shown) in the bottom surface.

当然,本发明还可有其它改进或替换。 Of course, the present invention is capable of other modifications or alterations. 例如,为了增强背光模组90的出光辉度和均匀度,可以进一步在邻近导光板480的光出射面482 —側设置扩散板和棱镜片(图未示)。 For example, the backlight module 90 in order to enhance the luminance and uniformity, the light guide plate 480 may be further adjacent to the light exit surface 482-- side diffuser plate and the prism sheet (not shown).

请参阅图8,是本发明背光模组第二实施方式,该背光模组99 包括导光板380和三线性光源301、 302、 303。 Please refer to FIG. 8, the backlight module is a second embodiment of the present invention, the backlight module 99 includes a light source 380 and trilinear 301, 302, 303.

该导光板380可以采用现有的任意侧光式导光板,三线性光源301、 302、 303分别设置于导光板3$0的一光入射侧面(未标示)。 The light guide plate 380 may employ any of the conventional edge type light guide plate, three linear light sources 301, 302, 303 are respectively provided on a light incident side surface of the light guide plate 3 $ 0 (not shown).

该线性光源301采用耦合器350将不同色彩的点光源311、 312 和313同时耦合进入导光光纤340,再夹持在具微扰结构的透光体之间,通过调节点光源311、 312和313的驱动电源360以产生可变色彩的线状光束。 The linear light source 301 using a coupler 350 to different colors of light points 311, 312 and 313 simultaneously coupled into the light guide fiber 340, and then sandwiched between the light-transmitting body having a perturbation structure, by adjusting the point light sources 311, 312 and 360 driving power supply 313 to generate a linear beam of variable color.

该线性光源302和303结构相同,分别包括点光源314、 315 以及相应的导光光纤和夹持导光光纤的透光体。 302 and 303 the same as the structure of the linear light source, each including a point light source 314, the light-transmitting member 315 and the corresponding light guide fiber and a light guide fiber holder.

当然,由于导光光纤340是一可挠性结构,因此也可以采用同一导光光纤340连接线性光源301、 302和303,从而可省略点光源314和315,进一步降低成本。 Of course, since the light guide fiber 340 is a flexible structure, and therefore may use the same light guide fiber 340 connected to the linear light source 301, 302 and 303, may be omitted so that the point light sources 314 and 315, further cost reduction.

Claims (10)

1.一种背光模组,包括导光板和至少一线性光源,来自线性光源的光束经导光板转换成平面光出射,该线性光源包括至少一点光源,其特征在于:该线性光源还包括传输点光源所发光束并将其转换为线状光束的导光光纤和夹持导光光纤的透光体,该透光体设置匹配导光光纤的微扰结构,以使该导光光纤中的光束出射至该透光体中并自该透光体表面出射。 A backlight module, comprising at least one linear light source and a light guide plate, the light guide plate through the light beam from the light source into linear light exit plane, at least one point of the linear light source comprises a light source, wherein: the light source further comprises linear transmission point the light beam issued linear beam and convert it to an optical fiber light guide and a light transmissive light guiding member holding the optical fiber, the light-transmissive member is provided to match the light guide fiber structure perturbation of the beam to the light guiding fiber to the exit surface of the light-transmitting member and the exit from the transparent body.
2. 如权利要求1所述的背光模组,其特征在于:该点光源是红色光源、蓝色光源或绿色光源。 The backlight module as claimed in claim 1, wherein: the point light source is a red light, blue light or green light.
3. 如权利要求1或2所述的背光模组,其特征在于:该点光源是发光二极管或激光二极管。 The backlight module of claim 1 or claim 2, wherein: the point light source is a light emitting diode or laser diode.
4. 如权利要求1或2所述的背光模组,其特征在于:该点光源是表面粘着型发光二极管或灯泡型发光二极管。 Or the backlight module as claimed in claim 12, wherein: the point light source is a surface mount type light emitting diode or bulb type light emitting diode.
5. 如权利要求1或2所述的背光模组,其特征在于:该背光模组散发均匀分布的白色平面光。 The backlight module of claim 1 or claim 2, wherein: the planar light white backlight module for distributing uniformly distributed.
6. 如权利要求1所述的背光模组,其特征在于:该导光光纤是玻璃抽丝材质或耐热塑料光纤。 The backlight module according to claim 1, wherein: the light-guiding fiber is made of glass or a heat resistant plastic optical fiber spinning.
7. 如权利要求1所述的背光模組,其特征在于:该线性光源还包括耦合该至少一点光源和导光光纤的耦合器。 The backlight module according to claim 1, wherein: the coupling of the linear light source further comprises at least one point light source and the light guide fiber coupler.
8. 如权利要求1所述的背光模组,其特征在于:该透光体的表面布设微透镜阵列或开设凹槽。 The backlight module as claimed in claim 1, wherein: the microlens array laying surface defines a groove or the light-transmitting member.
9. 如权利要求1所述的背光模组,其特征在于:该透光体的表面设置反射膜。 The backlight module according to claim 1, wherein: a surface of the light-transmitting member is provided a reflective film.
10. —种线性光源,包括至少一点光源,其特征在于:该线性光源还包括传输点光源所发光束并将其转换为线状光束的导光光纤和夹持导光光纤的透光体,该透光体设置匹配导光光纤的微扰结构, 以使该导光光纤中的光束出射至该透光体中并自该透光体表面出射。 10. - kind of linear light source comprising at least one point light source, wherein: the light source further comprises a linear transmission point light source and the light-transmitting body hair beams converted into the linear beam of the light guide fiber and a light guide fiber holder, the light-transmitting member is provided to match the structure of the light guide fiber perturbation, so that the beam light guiding fiber to the emitted light transmissive member and exit from the transparent surface.
CN 03146803 2003-09-11 2003-09-11 Backlight module and linear light source thereof CN100363812C (en)

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CN100424494C (en) 2005-12-17 2008-10-08 中国科学院安徽光学精密机械研究所 Method for implementing circular light ring strength uniformization and optical fiber mode disturbing apparatus
KR101232059B1 (en) 2006-07-27 2013-02-12 삼성디스플레이 주식회사 Dual prism sheet and backlight assembly having the same
JP2010218980A (en) * 2009-03-18 2010-09-30 Sony Corp Fiber lamp, backlight, and liquid crystal display device
CN103032822A (en) * 2012-12-12 2013-04-10 深圳市华星光电技术有限公司 Optical fiber for backlight module, backlight module and liquid crystal display device
CN103486502B (en) * 2013-09-27 2018-07-06 中视迪威激光显示技术有限公司 Optical fiber network board laser light source
US10209424B2 (en) * 2014-01-10 2019-02-19 Corning Incorporated Visual display backlight unit
TWI491927B (en) * 2014-03-21 2015-07-11 Au Optronics Corp Display device
CN105538608B (en) * 2016-01-25 2017-12-22 中山市利群精密实业有限公司 Prevent finished surface from forming the processing structure of flash
CN107388084A (en) * 2017-08-15 2017-11-24 杨林 Fibre optic laser illuminator
CN107420779A (en) * 2017-08-15 2017-12-01 杨林 Full-color laser fiber means of illumination and system

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