CN100430801C - Backlight module and lighting device thereof - Google Patents

Backlight module and lighting device thereof Download PDF

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Publication number
CN100430801C
CN100430801C CN 200510075965 CN200510075965A CN100430801C CN 100430801 C CN100430801 C CN 100430801C CN 200510075965 CN200510075965 CN 200510075965 CN 200510075965 A CN200510075965 A CN 200510075965A CN 100430801 C CN100430801 C CN 100430801C
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China
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lens
surface
backlight module
pair
light source
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CN 200510075965
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Chinese (zh)
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CN1687831A (en
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廖经桓
陈志光
高克嘉
黄志濠
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友达光电股份有限公司
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Abstract

一种背光模块及其照明装置,照明装置包括一光源以及一透镜,透镜设置在光源的上方,并与光源形成一预先设定的间距,透镜具有一入光面、一对上折射面及一对侧折射面,入光面为透镜的底面,上折射面位于透镜的上表面,侧折射面位于透镜的两侧。 A backlight module and an illumination device, the illumination device includes a light source and a lens, which is disposed above the light source, and forms a predetermined pitch and a light source, a lens having a light incident surface, a refractive surface and a pair of opposite side refractive surface of the lens surface to the bottom surface, an upper surface of the refracting surface of the lens, the side located on both sides of the lens refractive surface. 其中上折射面之间形成一大约为80°至120°的夹角。 Wherein the refractive surface is formed between an angle of approximately 80 ° to 120 °.

Description

背光模块及其照明装置 The backlight module and illumination device

技术领域 FIELD

本发明涉及一种背光模块及其照明装置,特别是涉及一种应用于液晶显示器的背光模块及造成背光模块均匀发光的照明装置。 The present invention relates to a backlight module and an illumination device, more particularly to a liquid crystal display device is applied to a backlight module and a backlight module causing the illumination device to emit light uniformly.

背景技术 Background technique

公知液晶显示器的背光模块安装在显示器面板的正后方,液晶显示器通过背光模块提供所需的光线。 Well-known liquid crystal display backlight unit is mounted directly behind the display panel, a liquid crystal display to provide the light required by the backlight module. 以背光模块的种类来说,通常可分为直光 In type backlight module, the light is generally divided into a linear

式和侧光式两大类,两者的光源均是使用冷阴极焚光灯管(CCFL)。 Type and an edge type two categories, both light sources are cold cathode-ray tubes burning (CCFL). 直光式背光模块具有多个灯管,通过增加灯管数量进而增加光通量。 Direct type backlight module having a plurality of lamps, thereby increasing the number of lamps by increasing the flux. 因此,直光式背光模块可适用于较大尺寸的液晶显示器,使大型显示器具有足够的亮度。 Therefore, direct illumination type backlight a liquid crystal display module applied to a larger size, so that large-sized display having a sufficient brightness.

然而,这种设计会使液晶显示器的厚度和重量增加,与目前追求显示器体积轻薄的观念背道而驰,因此,直光式背光;f莫块并不适用于轻巧型显 However, the thickness and weight of such a design will increase the liquid crystal display, displays the current pursuit of thin volume concept contrary, therefore, direct light type backlight; F Mo does not apply to block significant lightweight

示器。 Is shown. 另一方面,侧光式背光模块的光源位于一侧边,利用导光板使光线均匀化,具有较薄的外型,因此,适用于小型液晶显示器。 On the other hand, an edge type backlight light source is located at a side of the module, so that the light using the light guide plate uniform, having a thin shape, therefore, suitable for small liquid crystal display. 然而,由側边发光的光线的强度也较为微弱。 However, the intensity of the light emission side is relatively weak.

因此,为了减少光源重量,目前另一种光源;例如发光二极管(LED);逐渐取代冷阴极荧光灯管(CCFL)。 Accordingly, in order to reduce the weight of a light source, another current source; a light emitting diode (the LED); gradually replace the CCFL (CCFL). 一般来说,发光二极管可提供较高的光线亮度、较长的使用寿命而且体积重量明显较小。 In general, the light emitting diode provides high light intensity, longer life and a significantly smaller volume by weight. 然而,由于LED产生的光线的光线行进路径为直线式,且每一个LED的发光范围较小。 However, since the light traveling path of the light generated by the LED is linear, and the smaller the range of light emission of each LED. 因此,必需同时使用较多LED,而LED的排列方式与相对位置如有细微变化,可能会改 Thus, while necessary to use more LED, and the LED arrangement of the relative position of the subject to slight changes, may change

变屏幕颜色或减少亮度。 Screen color change or decrease the brightness.

参照图1A,背光模块1具有一框架15、多个光学膜片11、 一扩散片12、多个反射片13以及多个光源14.光学膜片11、扩散片12以及反射片13利用框架15互相连接,而光源14排列在反射片13之上,并朝向正面方向发出光线,部分光线再通过反射片13将光线向上反射,光线穿过扩散片11后朝向面板(未显示)方向射出,面板方向定义为正面方向,如箭头L所示。 1A, the backlight module 1 has a frame 15, a plurality of optical film 11, a diffusion sheet 12, a plurality of reflecting sheet 13 and a plurality of light sources 14. The optical film 11, the diffusion sheet 12 and the reflective sheet 13 utilizing the frame 15 connected to each other, and the light source 14 arranged on the reflective sheet 13, light emitted toward the front direction, and then part of the light reflected upward by the light reflecting sheet 13, light passing through the diffusion sheet 11 toward the rear panel (not shown) emission direction, the panel direction is defined as the front direction, as shown by arrow L.

如上所述,公知背光模块1存在的问题在于, 一般LED的光线行进路径为直线式,大部分光线朝向正面方向射出。 As described above, the backlight module is well-known that the problem 1, LED light generally rectilinear path of travel, most of the light is emitted toward the front direction. 因此,光线较为不均匀,而且光源14与反射片13明暗差异太大,使得画面亮度不均匀。 Thus, relatively non-uniform light, the light source 14 and 13 and the reflection shade difference sheet is too large, so that the luminance non-uniformity. 若要解决此问题则须使用更多的光源,光源之间的间距也必须缩小,这样设计会使液晶显示器的重量和成本增加,还可导致背光模块内的温度升高。 To resolve this problem required to use more light sources, the distance between the light source must also be reduced, an increase in weight and cost of such a liquid crystal display design will also result in increased temperature in the backlight module.

为了解决LED的直线光线行进路径的问题,目前已提出一种側面发光型发光二极管(LED) 14,,如图1B所示,该侧面发光型发光二极管14,具有一发光本体140、 一底座141、 一电绝缘条143等元件。 In order to solve the linear travel path of the LED light, has been proposed a side-emitting light emitting diode (LED) 14 ,, 1B, the side emitting type light emitting diode 14, having a light emitting body 140, a base 141 , an electrically insulating strip 143 and other components. 虽然侧面发光型发光二极管14'可使80%的光线朝向侧面发光,其光线行进路径如箭头所示, 然而,该结构和制造方式较为复杂,成本较高,并且必须增加导光板16和反射金属层18等其它薄膜层设在其四周围,混光和反射机制必须通过导光板16和其它薄膜层来达到光线的均匀性。 Although side-emitting type light emitting diode 14 '80% can emitting light toward the side that the light path of travel as indicated by an arrow, however, the structure and manufacturing methods are more complex and costly, and the light guide plate 16 must be increased and the reflective metal and other film layer 18 is provided around the four layers, light reflection must be mixed to achieve uniformity of the light guide plate 16 and the other through the thin film layers. 因此,导光板等其它元件更增加了重量和制造成本。 Thus, other elements like the light guide plate adds weight and manufacturing costs.

发明内容 SUMMARY

本发明提供一种照明装置,其结构简单,且可降低制造成本。 The present invention provides an illumination apparatus which is simple in structure, and can reduce the manufacturing cost. 照明装置包括一光源以及一透镜,透镜设置在光源的上方,并与光源形成一预先设定的间距,透镜具有一入光面、 一对上折射面及一对侧折射面,入光面为透镜的底面,上折射面位于透镜的上表面,侧折射面位于透镜的两側, 所述入光面、所述一对上折射面的其中之一及所述一对侧折射面的其中之一组合成一三角形或一梯形,所述透镜由其两个三角形或两个梯形组成, 上折射面之间形成一大约为80°至120。 The lighting device includes a light source and a lens, which is disposed above the light source, the light source and is formed with a predetermined pitch, the lens having a light incident surface, a refractive surface and a pair of side refractive surface, the surface is the upper surface of the bottom surface of the lens, the refractive surface of the lens, the lens-side refractive surface located on both sides of the light incident surface, one of a pair of refractive surfaces on a pair of side wherein the refractive surface, and wherein the a combination of a triangle or a trapezoid as the lens or two by two triangles trapezoid, is formed between a surface 120 of approximately 80 ° to the refraction. 的夹角。 Angle.

在一优选实施例中,上折射面与入光面之间形成一相对称的顶角,顶角的角度范围大约为30°至50°。 In a preferred embodiment, the apex angle formed between a surface opposite said light incident surface and the refraction, the apex angle ranges from about 30 ° to 50 °. 入光面与侧折射面之间形成二钝角,钝角的角度范围大约为100°至115°. Two obtuse angle is formed between the side surface and the refractive surface, the range of an obtuse angle of about 100 ° to 115 °.

在另一优选实施例中,透镜的侧剖面的形状大致上为V-字型。 In another preferred embodiment, the lens-side cross-sectional shape is substantially V- shaped. 应注意的是,透镜的折射率范围大约为1.49至1.51,而预先设定的间距大约为10毫米以下。 It should be noted that the refractive index of the lens ranges from about 1.49 to 1.51, and the predetermined pitch of about 10 mm or less. 而该优选实施例中的预先设定的间距范围大约为0-2 毫米之间。 And a distance range set in advance in the embodiment of the preferred embodiment is approximately 0-2 mm. 透镜的材料可以是聚合物材料、石英或玻璃,其中,聚合物材料可以是聚曱基丙烯酸曱酯(P腿A)、聚苯乙烯(PS)或聚碳酸酯(PC)。 The lens material may be a polymer material, quartz or glass, wherein the polymer material can be poly Yue Yue methacrylic acid ester (P A leg), polystyrene (PS) or polycarbonate (PC). 应了解的是,光源可以是圓弧形发光二极管(Lamberation-type LED) 或冷阴极焚光灯管(CCFL)。 It should be appreciated that the circular arc-shaped light source may be a light emitting diode (Lamberation-type LED) or a cold cathode lamp burning light (CCFL).

本发明还提供一种背光模块,包括一框架、 一反射板、至少一光源以及一透镜。 The present invention also provides a backlight module, comprising a frame, a reflecting plate, a light source, and at least one lens. 反射板设置在框架内。 A reflecting plate disposed within the frame. 光源设置在反射板上。 A light source disposed on the reflector. 透镜具有一入光面、 一对上折射面及一对侧折射面,入光面为透镜的底面,上折射面位于透镜的上表面,侧折射面位于透镜的两側,所述入光面、所述一对上折射面的其中之一及所述一对侧折射面的其中之一组合成一三角形或一梯形, 所述透镜由其两个三角形或两个梯形组成,上折射面之间形成一大约为80° 至120。 Lens having a light incident surface, an upper surface and a pair of side refractive surface on the refractive surface, the bottom surface of the lens surface on the refractive surface of the lens, the lens-side refractive surface located on both sides of the light incident surface , wherein one of refractive surface of the composition, and one of the pair of side refractive surface is a triangle or a trapezoid as the pair of the lens by two triangular or trapezoid two, between the refractive surface forming a 80 ° to about 120. 的夹角,该入光面与该对侧折射面之间形成二钝角,该二钝角的角度范围大约为100。 Angle, the light incident surface is formed with two obtuse angle between the pair of side refractive surface, the two obtuse angular range is approximately 100. 至115°。 To 115 °. 背光模块还包括至少一光学膜片,设置在透镜之上。 The backlight module further comprises at least an optical film, disposed above the lens.

光源的排列方式可以是条状排列、矩阵排列、交错排列或不规则排列。 The light source arrangement may be a stripe array, arranged in a matrix, staggered, or irregularly arranged. 当光源的排列方式为条状排列时,框架包括至少一定位元件,定位元件设置在框架的侧壁上,且透镜定位在框架上。 When the stripe arrangement of the light source is arranged, the frame comprises at least one positioning member, the positioning member is provided on the side wall of the frame, and the lens is positioned on the frame. 定位元件的形状部分相对应于透镜的形状,并与透镜的两側相互接触。 Shaped portion corresponding to the positioning member to the shape of the lens, and in contact with each other on both sides of the lens. 在另一实施例中,定位元件也可以是一螺丝。 In another embodiment, the positioning member may be a screw.

当光源的排列方式为矩阵排列、交错排列或不规则排列时,背光模块还包括一支撑元件,设置于反射板与透镜之间,且透镜支撑在光源的上方。 When the arrangement of the light source is arranged in a matrix, or irregularly arranged in a staggered arrangement, the backlight module further comprises a support member disposed between the reflection plate and the lens, and the lens is supported above the light source.

为了使本发明的上述和其它目的、特征、和优点能更明显易于理解, 下面特举优选实施例,并配合附图作详细说明。 To make the above and other objects, features, and advantages can be more readily understood, several preferred embodiments following embodiment, and detailed description with accompanying drawings.

附图说明 BRIEF DESCRIPTION

图1A为公知背光模块的立体示意图; 1A is a perspective schematic view of a known backlight module;

图1B为4^知光源(LED)的侧^L示意图; FIG 1B is a known light source 4 ^ (LED), a schematic side ^ L;

图2A为本发明的背光模块的第一实施例立体示意图; FIG 2A a first embodiment of the present invention, the backlight module perspective view;

图2B为本发明的照明装置的第一实施例侧;f见示意图; FIG. 2B side of the first embodiment of the present invention, the lighting device; see Scheme F;

图2C为本发明的背光模块的第一实施例的变型例立体示意图; Modification of the first embodiment of the backlight module of FIG. 2C is a perspective schematic view of the present disclosure;

图3为本发明的背光模块的第二实施例立体示意图; The second embodiment of the backlight module of FIG. 3 is a perspective schematic view of the present disclosure;

图4A为本发明的照明装置的变型例示意图; FIG. 4A modification of the illumination device of the present invention; and FIG.

图4B为本发明的照明装置的第二实施例的第一变型例示意图; A first modification of the second embodiment of the lighting device of Fig 4B is a schematic view of the present disclosure;

图4C为本发明的照明装置的第二实施例的第二变型例示意图。 The second modification of the second embodiment of the lighting device of Fig 4C is a schematic view of the present disclosure. 具体实施方式 Detailed ways

参照图2A,本发明第一实施例的背光模块100A包括至少一光学膜片22A、 一扩散寺反21A、 一框架25A、 一反射板23A以及一照明装置50。 2A, the embodiment of the present invention, a first embodiment of the backlight module 100A comprises at least one optical film 22A, a temple anti-diffusion 21A, a frame 25A, a reflecting plate 23A and a lighting device 50. 照明装置50包括一光源51以及一透镜52。 The lighting device 50 includes a light source 51 and a lens 52. 在本实施例中,光源51的排列方式为矩阵排列。 In the present embodiment, the arrangement of the light source 51 is arranged in a matrix. 反射板23A设置在框架25A内,光学膜片22A和扩散板21A 设置在透镜52之上。 A reflecting plate disposed within the frame 23A 25A, 22A and the optical film disposed on the diffuser plate 21A of the lens 52. 光源51设置在反射板23A上。 The light source 51 is provided on the reflection plate 23A. 透镜52的材料可以是聚合物材料、石英或玻璃。 The material of the lens 52 may be a polymeric material, glass or quartz. 聚合物材料为聚曱基丙烯酸曱酯(P醒A)、聚苯乙烯(PS)或聚碳酸酯(PC)。 Yue polymeric material is polyethylene methacrylic acid ester Yue (P awake A), polystyrene (PS) or polycarbonate (PC). 透镜52的折射率范围大约为1.49至1.51。 Lens 52 is a refractive index range of approximately 1.49 to 1.51. 光源51可以是圆弧形发光二极管。 The light source 51 may be a light emitting diode arcuate.

图2B显示本发明的照明装置50的第一实施例侧视示意图。 2B shows a first embodiment of the present invention, the lighting device 50 side view. 透镜52设置在光源51的上方,并与光源51形成一预先设定的间距Gu背光模块100A 还包括一支撑元件60,设置于反射板23A与透镜52之间,且支撑透镜52 在光源51的上方,进而保持预先设定的间距G,。 Lens 52 is disposed above the light source 51 and light source 51 is formed with a pitch Gu a predetermined backlight module 100A further includes a support member 60, 23A is provided between the reflecting plate and the lens 52, the lens 52 and the support 51 of the light source above, so as to maintain a predetermined gap G ,. 因此,预先设定的间距G, 的长度可依照支撑元件60来决定。 Thus, a predetermined distance G, may be determined in accordance with the length of the support member 60. 而该预先设定的间距G,范围大约在0毫米至10毫米之间(即10毫米以下)。 And the predetermined spacing G, in the range of between about 0-10 mm (i.e. 10 mm or less).

在一优选实施例中,预先设定的间距G,范围大约在0毫米至2毫米。 In a preferred embodiment, the predetermined distance G, in the range of about 0-2 mm. 透镜52具有一入光面52a、 一对上折射面52b及一对侧折射面52c, 入光面52a为透镜52的底面,上折射面52b位于透镜52的上表面,侧折射面52c位于透镜52的两侧。 Lens 52 has a light incident surface 52a, a pair of refractive surfaces 52b and 52c on the pair of side refractive surface, the surface 52a of the bottom surface of the lens 52, the refractive surface 52b located on the surface of the lens 52, the side refractive surface of the lens 52c 52 on both sides. 入光面52a、 一上折射面52b及一侧折射面52c組合成一三角形的形状,而透镜52由两个三角形组成。 Incident surface 52a, 52b and a refractive surface on one side refractive surface 52c are combined into a triangular shape, and the lens 52 is made up of two triangles. 二上折射面52b 之间形成大约为80。 Is formed between the two refractive surface 52b is approximately 80. 至120。 To 120. 的夹角e,。 Angle e ,. 上折射面52b与入光面52a之间形成一相对称的顶角(3"顶角^的角度范围大约为30°至50°。入光面52a与侧折射面52c之间形成二钝角丫M钝角》的角度范围大约为100°至115°。 在本实施例中,透镜52的侧剖面的形状大致上为V-字型。 当光源51的光线朝向透镜52发射时,光线可穿透入光面52a,如虛线方向所示,部分的光线分别经过该上折射面52b,由上折射面52b折射再朝向侧折射面52c方向传递出去。因此,光线可朝向透镜52四周方向射出, 使光线朝向侧面方向均匀分散,且缩小光源与反射片之间的明暗差异,使得画面亮度更加均匀。本发明不仅结构简单、成本低,由于光线均匀化, 并可减少光源数量,以达到体积轻薄的需求。本发明还可具有一变型例,背光^f莫块100B的详细结构在前面已揭示, 这里不再赘述,参照图2C。光源51的排列方式不一定要依照上述实施例那样 Forming a symmetrical apex angle (3 "^ apex angle between the surface 52b and refractive surface 52a on the angular range of about 30 ° to 50 °. Ah obtuse angle is formed between the two incident surface 52c and the side refractive surface 52a M obtuse "angular range of approximately 100 ° to 115 °. in the present embodiment, the side cross-sectional view of the lens shape 52 is substantially V- shaped. when the light emitting source 51 toward the lens 52, light penetrable incident surface 52a, as shown in a broken line direction, each part of the light through the refracting upper surface 52b, 52b refracted by the refractive surface on the side toward the refractive surface 52c and then pass out direction. Thus, light can be emitted toward the direction of the lens 52 four weeks, toward the side direction so that the light is uniformly dispersed and reduced shade difference between the light source and the reflection sheet, making the screen more uniform brightness. the present invention is not only simple structure, low cost, because the light uniform, and reduce the number of light sources, to achieve a thin volume needs. the present invention may also have a variant embodiment, the backlight Mo ^ f block 100B of the detailed structure is disclosed in earlier, not repeated here, with reference to FIG 2C. arrangement of the light source 51 is not necessarily in accordance with the previously mentioned embodiment 以矩阵方式排列在反射板23A上,如图2C所示,光源51的排列方式也可以交错排列在反射板23B上。无论光源51的排列方式为矩阵排列、交错排列或不规则排列,通过将背光模块IOOA、 100B的支撑元件60设置在反射板23A、 23B与透镜52之间,即可支撑透镜52在光源50的上方,进而保持透镜52与光源50之间的预先设定的间距。因此,本发明并不限定光源51的排列方式,而照明装置50可适用于各种能使光源51均匀发光的排列组合。 Arranged in a matrix on the reflection plate. 23A, FIG. 2C, the arrangement of the light source 51 may be staggered on the reflection plate 23B. Regardless of the arrangement of the light sources 51 are arranged in a matrix, or irregularly arranged in a staggered arrangement, by the backlight module IOOA, the support member 60 is disposed between the reflection plate 100B 23A, 23B and the lens 52, lens 52 can be supported above the light source 50, so as to maintain a predetermined spacing between the lens 52 and the light source 50. Thus the present invention is not limited to the arrangement of the light source 51, the illumination apparatus 50 applicable to various permutations and combinations of the light source 51 can emit light uniformly.

图3显示本发明的背光模块100'的第二实施例立体示意图。 3 shows a perspective view of embodiment 100 'of a second embodiment of the backlight module of the present invention. 应注意的是,背光模块IOO,的详细结构大致上与第一实施例相同,这里不再赘述。 It should be noted that the IOO backlight module, the detailed structure of the embodiment is substantially the same as the first embodiment, is omitted here. 本实施例与第一实施例不同之处在于,光源51,可以是冷阴极焚光灯管(CCFL)或是长条状的发光二极管(LED),而光源51,的排列方式为条状平行排列在背光模块IOO,的反射板23,上。 Embodiment differs from the first embodiment in that the embodiment of the present embodiment, the light source 51 may be a cold cathode lamp burning light (CCFL) or light emitting diode elongated (the LED), the light source 51, a parallel arrangement of a strip the IOO arranged in the backlight module, the reflection plate 23, the. 透镜52可以是长条状。 Lens 52 may be elongated. 框架25, 还包括至少一定位元件62,,定位元件62,设置在框架25,的侧壁上,透镜52,定位在框架25'上。 Frame 25, further comprising at least one positioning element 62 ,, the positioning member 62, provided on the side wall frame 25, the lens 52, positioned on the frame 25 '. 定位元件62,可以是螺丝。 The positioning element 62 may be a screw.

值得注意的是,本发明的第一实施例或第二实施例的照明装置还可具有不同形状的透镜。 Notably, the lighting device of the first embodiment or the second embodiment of the present invention can also have a different shape of a lens. 举例来说,在一变型例中,如图"所示,透镜52,具有一入光面52a,、 一对上折射面52b,及一对侧折射面52c,,入光面52a, 为透镜52,的底面,上折射面52b,位于透镜52,的上表面,侧折射面52c' 位于透镜52,的两侧。入光面52a,、 一上折射面52b,及一侧折射面"c, 分别组合成一实质上为梯形的形状,而透镜52,是由两个实质上为梯形的形状组成。 For example, in a variant embodiment, shown in ", the lens 52, having a refractive surface 52b on a light incident surface 52a ,, a pair of side refractive surface and a light incident surface 52c ,, 52a, a lens 52, the bottom surface, the refractive surface 52b, the upper surface of the lens 52, the side refractive surface 52c 'of the lens 52, the both sides. on the surface a refractive surface 52a ,, 52b, and a side refractive surface "c , are combined into a substantially trapezoidal shape, and the lens 52, is composed of two substantially trapezoidal shape is composed. 二上折射面52b'之间形成大约80°至120°的夹角62。 From about 80 ° to 120 ° angle 62 is formed between the refractive surface 52b 'on the titanium. 夹角62的顶端与入光面之间的距离为厚度H,透镜52'的厚度H可依照背光模块的尺寸决定。 The distance between the tip 62 and the angle of the light incident surface to a thickness H, the lens 52 'may be determined in accordance with the size of the thickness H of the backlight module. 上折射面52b,与一水平面之间形成一相对称的顶角p2。 The refractive surface 52b, is formed a symmetrical apex angle between a horizontal plane p2. 顶角卩2 的角度范围大约为30。 Jie apex angle range of about 30 2. 至50。 50. .入光面52a,与侧折射面52c'之间形成二钝角》,钝角》的角度范围大约为100°至115。 . Into the surface 52a, the side refractive surface 52c 'form an obtuse angle between the two "obtuse angle" is an angle range of about 115 to 100 °. . 另外, 一支撑元件60,可设置于反射板23'与透镜52'之间,且支撑透镜52'在光源51'的上方, 保持设定的间距&。 Further, a support member 60, may be disposed between the reflection plate 23 'and the lens 52', and supporting the lens 52 'in the light source 51' above the spacing & remains set. 应注意的是,在此变型例中,如框架具有如图3所示的定位元件62',则可省略支撑元件60',反之亦然。 It is noted that, in this modification, as with the frame member 62 positioned as shown in Figure 3 ', the support member 60 may be omitted', and vice versa. 定位元件62'加上支撑元件60'的设计则更可增强整体支撑结构,因此,支撑元件60'可依照背光模块的尺寸或透镜大小而增减。 Design of the positioning member 62 'plus support elements 60' can be enhanced even more monolithic support structure, therefore, the support member 60 'may be in accordance with the lens size or decrease the size of the backlight module. 再有,设定的间距G2的长度可依照支 Further, the length of the pitch may be set in accordance with G2 branched

撑元件60'或定位元件62,决定。 Support elements 60 'or the positioning member 62, the decision. 设定的间距G2范围大约在10毫米以下, 而此优选实施例中的预先设定的间距范围大约在0-2毫米之间。 Distance G2 set the range of about 10 mm, and the spacing set in advance in the scope of this preferred embodiment is between about 0-2 mm.

本发明提出上述两种透镜形状作为实例,然而,本发明并不限定透镜的形状,其可以是三角形、不规则四边形或梯形等形状所组合而成的透镜, 而且这些不限定透镜形状的侧剖面的形状大致上为V-字型。 The present invention proposes the two lens shape as an example, however, the present invention is not limited to the shape of the lens, which may be triangular, trapezoidal or the lens of the combination of a trapezoidal shape, but is not limited to these cross-sectional shape of the lens-side shape is substantially V- shaped.

当透镜52'为长条形时,如图3所示,本发明第二实施例的定位元件还可具有不同变型例。 When the lens 52 'is elongated, as shown in Figure 3, the positioning element of the second embodiment of the present invention may also have various modifications. 图4B为本发明照明装置50的第一变型例示意图。 FIG. 4B a schematic view of a first modification of the lighting apparatus 50 of the present invention. 在该变型例中,每一定位元件61由两条状元件组成,而定位元件61可分别设置在图3的框架25,的相对的侧壁上,两条状元件分别与透镜52,两侧的侧折射面52c,相互接触,即其形状是部分相对应于透镜52'的形状。 In this variation on the embodiment, each positioning member 61 consists of two like element composition, and the positioning member 61 may be respectively provided in the frame 25 of FIG. 3, the opposing side walls, two lens-like element 52, respectively, on both sides side refractive surface 52c, contact with each other, i.e., its shape corresponding to the lens part 52 'shape. 因此,可将透镜52'的两端分别接合在定位元件61上,用以将透镜52, 定位在框架25'上。 Thus, the lens 52 'are joined at both ends of the positioning member 61 to the lens 52, is positioned in the frame 25' on.

在第二变型例中,如图4C所示,与第一变型例不同之处在于,定位元件62由两L型元件组成,L型元件的角度大致上与入光面52a,与侧折射面52c,之间形成的二钝角丫2相同。 In a second variant embodiment, shown in Figure 4C, it is different from the first modification in that the positioning element 62 consists of two L-shaped elements, the angle member is substantially L-shaped light incident surface 52a, the side refractive surface 52c, two identical obtuse angle is formed between the 2 Ah. 同样,定位元件62的形状部分相对应于透镜52'的形状。 Similarly, the shape of the positioning member 62 portion corresponding to the lens 52 'shape. 因此,可将透镜52,的两端分别接合在定位元件62 上,用以将透镜52'定位在框架25,上,并且不会妨碍和干扰光源51,的光线行进路径。 Thus, the ends of the lens 52, respectively, engage on the positioning member 62 to the lens 52 'is positioned in the frame 25, on, and does not interfere with and disturb the light source 51, light traveling path.

综上所述,本发明借助透镜使光源产生不同的光线行进路径,使部分光线通过透镜向侧面方向射出,达到均匀发光的效果,还可减少元件数量, 进而降低制造成本。 In summary, the present invention is produced by the lens of the light source a different light path of travel, so that part of the light emitted by the lens in the side direction, to achieve uniform light emission effect, can also reduce the number of components, thereby reducing the manufacturing cost.

虽然本发明已以优选实施例揭示,但其并非用以限定本发明,任何本领域的技术人员,在不脱离本发明的构思和范围,仍可作出各种更动与润饰,因此本发明的保护范围以后附的权利要求所界定。 Although the embodiments disclosed in the present invention preferably, but not intended to limit the present invention, anyone skilled in the art, without departing from the spirit and scope of the present invention, various changes or modifications may be made thereto, and thus the present invention after the scope defined by the appended claims.

Claims (29)

1.一种照明装置,包括: 一光源;以及一透镜,设置在所述光源的上方,并与所述光源形成一预先设定的间距,具有一入光面、一对上折射面以及一对侧折射面,该入光面为所述透镜的底面,该一对上折射面位于所述透镜的上表面,该一对侧折射面位于所述透镜的两侧,所述入光面、所述一对上折射面的其中之一及所述一对侧折射面的其中之一组合成一三角形或一梯形,所述透镜由两个所述三角形或两个所述梯形组成,其中,所述一对上折射面之间形成一为80°至120°的夹角。 1. A lighting apparatus, comprising: a light source; and a lens disposed over the light source, the light source and is formed with a predetermined pitch, having a light incident surface, a refractive surface and a pair of opposite side refractive surface, the light incident surface to the bottom surface of the lens, the upper surface of the lens refractive surface is located on the pair, the pair of side refractive surface located on both sides of the lens, the light incident surface, one of the refractive surface of the pair of side refractive surface and wherein one of the pair of combined into a triangle or a trapezoid, wherein said lens comprises two or said two of said triangular trapezoid, wherein the formed between a pair of said refractive surfaces is an included angle of 80 ° to 120 °.
2. 如权利要求1所述的照明装置,其中,所述上折射面与入光面之间形成一相对称的顶角。 The lighting device according to claim 1, wherein said apex angle is formed between an opposite surface and into the upper surface refraction.
3. 如权利要求2所述的照明装置,其中,所述顶角的角度范围为30°至50。 The lighting device according to claim 2, wherein the apex angle in the range of 50 to 30 °. .
4. 如权利要求1所述的照明装置,其中,该入光面与该对侧折射面之间形成二钝角,该二钝角的角度范围为100°至115°。 The lighting device according to claim 1, wherein the light incident surface forming an obtuse angle between the two pair of side refractive surface, the two obtuse angle range of 100 ° to 115 °.
5. 如权利要求1所述的照明装置,其中,所述透镜的侧剖面的形状为V-字型。 The lighting device according to claim 1, wherein the cross-sectional shape of the side of the lens is V- shaped.
6. 如权利要求1所述的照明装置,其中,所述透镜的折射率范围为1. 49 至1. 51。 The lighting device according to claim 1, wherein said lens is a refractive index range from 1.49 to 1.51.
7. 如权利要求1所述的照明装置,其中,所述预先设定的间距为10毫米以下。 The lighting device according to claim 1, wherein said predetermined pitch is set to 10 mm or less.
8. 如权利要求1所述的照明装置,其中,所述预先设定的间距范围为0 毫米至2毫米。 The illumination device as claimed in claim 1, wherein the predetermined distance is set in the range of 0-2 mm.
9. 如权利要求1所述的照明装置,其中,所述透镜的材料包括聚合物材料、石英或玻璃。 The illumination device as claimed in claim 1, wherein the lens material comprises a polymeric material, glass or quartz.
10. 如权利要求9所述的照明装置,其中,所述聚合物材料包括聚曱基丙烯酸曱酯(P固A)、聚苯乙烯(PS)或聚碳酸酯(PC)。 The lighting device according to claim 9, wherein said polymeric material comprises poly Yue Yue acrylate ester groups (P A solid), polystyrene (PS) or polycarbonate (PC).
11. 如权利要求l所述的照明装置,其中,所述光源包括圆弧形发光二极管(LED)或冷阴极焚光灯管(CCFL)。 11. The illumination device of claim l, wherein the light source comprises a light emitting arcuate diode (LED) or a cold cathode lamp burning light (CCFL).
12. —种背光模块,包括: 一框架;一反射板,设置于所述框架内; 至少一光源,设置在所述反射板上;以及一透镜,设置在所述光源的上方,并与所述光源形成一预先设定的间距,具有一入光面、 一对上折射面以及一对侧折射面,该入光面为所述透镜的底面,该一对上折射面位于所述透镜的上表面,该一对侧折射面位于所述透镜的两侧,所述入光面、所述一对上折射面的其中之一的上折射面及所述一对侧折射面的其中之一组合成一三角形或一梯形,所述透镜由两个所述三角形或两个所述梯形组成,其中,所述一对上折射面之间形成一为80°至120。 12 - back light module, comprising: a frame; a reflective plate disposed within said frame; at least one light source disposed on the reflective plate; and a lens disposed above the light source on and with the said light source is formed of a pre-set pitch, having a light incident surface, a refractive surface and a pair of side refractive surface, the light incident surface to the bottom surface of the lens, the refractive surface of the lens positioned on the pair of wherein one of the upper surface of the pair of side surfaces located on both sides of the refractive lens, the light incident surface, wherein the refractive surface on one of the pair of side refractive surface and a refractive surface on the pair combined into a trapezoid or a triangle, the two triangles of the lens or the two trapezoid, wherein the surface is formed between a 80 ° to 120 is refracted on a pair. 的夹角。 Angle.
13. 如权利要求12所述的背光模块,其中,所述光源的排列方式为条状排列。 13. The backlight module according to claim 12, wherein the arrangement of the light source is stripe arrangement.
14. 如权利要求13所述的背光模块,其中,所述框架包括至少一定位元件,该定位元件设置在框架的侧壁上,并将透镜定位在框架上。 14. The backlight module according to claim 13, wherein said frame comprises at least one positioning element, the positioning element is provided on the side wall of the frame, and the positioning of the lens on the frame.
15. 如权利要求14所述的背光模块,其中,所述定位元件的形状部分;也相对应于透镜的形状,并与透4竟的两侧相互接触。 15. The backlight module according to claim 14, wherein said positioning shape portion of the member; also corresponds to the shape of the lens, and actually contact with each other on both sides of the lens 4.
16. 如权利要求14所述的背光模块,其中,所述定位元件包括一螺丝。 16. The backlight module according to claim 14, wherein said positioning member comprises a screw.
17. 如权利要求12所述的背光模块,其中,所述光源的排列方式包括矩阵排列、交错排列或不规则排列。 17. The backlight module according to claim 12, wherein the light source arrangement comprises a matrix arrangement, a staggered arrangement or an irregular arrangement.
18. 如权利要求17所述的背光模块,还包括一支撑元件,设置于反射板与透镜之间,且透镜支撑在光源的上方。 18. The backlight module according to claim 17, further comprising a supporting member disposed between the reflection plate and the lens, and the lens is supported above the light source.
19. 如权利要求12所述的背光模块,其中,所述上折射面与入光面之间形成一相对称的顶角。 19. The backlight module according to claim 12, wherein said apex angle is formed between an opposite surface and into the upper surface refraction.
20. 如权利要求19所述的背光模块,其中,所述顶角的角度范围为30。 20. The backlight module as claimed in claim 19, wherein said apex angle range is 30. 至50。 50. .
21. 如权利要求12所述的背光模块,其中,该入光面与该对侧折射面之间形成二钝角,该二钝角的角度范围为100°至115°。 21. The backlight module according to claim 12, wherein the light incident surface forming an obtuse angle between the two and the pair of side refractive surface, the two obtuse angle range of 100 ° to 115 °.
22. 如权利要求12所述的背光模块,其中,所述透镜的侧剖面的形状为V-字型。 22. The backlight module according to claim 12, wherein the cross-sectional shape of the side of the lens is V- shaped.
23. 如权利要求12所述的背光模块,其中,所述透镜的折射率范围为 Refractive index range 23. The backlight module according to claim 12, wherein the lens is
24. 如权利要求12所述的背光模块,其中,所述预先设定的间距为10 毫米以下。 24. The backlight module as claimed in claim 12, wherein said predetermined pitch is set to 10 mm or less.
25. 如权利要求12所述的背光模块,其中,所述预先设定的间距范围为0毫米至2毫米。 25. The backlight module as claimed in claim 12, wherein the predetermined distance is set in the range of 0-2 mm.
26. 如权利要求12所述的背光模块,还包括至少一光学膜片,设置在透镜之上。 26. The backlight module as claimed in claim 12, further comprising at least an optical film, disposed above the lens.
27. 如权利要求12所述的背光模块,其中,所述透镜的材料包括聚合物材料、石英或玻璃。 27. The backlight module according to claim 12, wherein the lens material comprises a polymeric material, glass or quartz.
28. 如权利要求27所述的背光模块,其中,所述聚合物材料包括聚甲基丙烯酸甲酯(P固A)、聚苯乙烯(PS)或聚碳酸酯(PC)。 28. The backlight module according to claim 27, wherein said polymeric material comprises polymethyl methacrylate (P A solid), polystyrene (PS) or polycarbonate (PC).
29. 如权利要求12所述的背光模块,其中,所述光源包括圆弧形发光二极管(LED)或冷阴极荧光灯管(CCFL)。 29. The backlight module according to claim 12, wherein the light source comprises a light emitting arcuate diode (LED) or a cold cathode fluorescent lamp (CCFL).
CN 200510075965 2005-05-27 2005-05-27 Backlight module and lighting device thereof CN100430801C (en)

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TWI287117B (en) 2006-05-25 2007-09-21 Ind Tech Res Inst Light guide lens and light emitting diode package structure having the light guide lens
CN100507610C (en) 2006-05-29 2009-07-01 财团法人工业技术研究院 Leaded light lens and luminous diode packaging structure having same
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