CN100419526C - Planar light source module - Google Patents

Planar light source module Download PDF

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Publication number
CN100419526C
CN100419526C CN 02151998 CN02151998A CN100419526C CN 100419526 C CN100419526 C CN 100419526C CN 02151998 CN02151998 CN 02151998 CN 02151998 A CN02151998 A CN 02151998A CN 100419526 C CN100419526 C CN 100419526C
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light source
light
guide plate
surface
reflector
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CN 02151998
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Chinese (zh)
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CN1501137A (en )
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陈弥坚
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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

一种面光源模块,包括一导光板、至少一灯管和至少一反射罩。 A surface light source module comprising a light guide plate, at least one lamp and at least one reflector. 该导光板引导灯管所发出光线的传输方向,提高光线出射的辉度和均匀性,该导光板包括入光面和与其一体成型的灯管支架,及配合该支架且与支架一体成型的连接器,该至少一灯管相对该导光板的入光面设置且收容于该灯管支架中,并进一步与该连接器电性连接,该至少一反射罩和灯管支架固连,且该反射罩的端部包括卡钩,该支架开设配合该卡钩的卡槽,该反射罩与对应灯管配合以进一步提高光线利用率。 The lamp tube guide plate guiding emitted light transmission direction, improving the light emission luminance and uniformity of the light guide plate includes a light incident surface and a lamp holder formed integrally therewith, and with the stent and is connected integrally formed with the bracket device, the at least one tube relative to the guide plate and the light incident surface disposed on the lamp holder accommodated, and further connected to the electrical connector, the at least one reflector and the lamp holder is fixedly connected to the reflector and end cover includes a hook, which bracket defines mating slot of the hook, the lamp reflector with a corresponding mating to further increase the light utilization.

Description

面光源模块【技术领域】本发明涉及一种面光源模块,尤指一种导光板和线光源精确定位、光学性能优良的面光源模块。 The surface light source module TECHNICAL FIELD The present invention relates to a surface light source module, more particularly to a light guide plate and a line light source precise positioning, the optical properties of a surface excellent in the light source module. 【背景技术】由于液晶显示装置具轻、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。 BACKGROUND Since the liquid crystal display device having a light, thin, small power consumption, etc., are widely used in notebook computers, mobile phones, personal digital assistants and other modern information equipment. 因为液晶本身不具发光特性,需要为其提供面光源模块以实现显示功能。 Since the LCD itself does not have the light emission characteristics, it is necessary to provide a surface light source module for a display function. 一种现有面光源模块可参阅2001年10月3日公告的中国专利第00255307号(图1参照),其包括一边框110、 一导光板120和两灯管总成130。 One prior planar light source module may refer to October 3, 2001 in China Patent Announcement No. 00255307 (refer to FIG. 1), which comprises a frame 110, a light guide plate 120 and the two lamp assembly 130. 该导光板120设置于边框110内,该边框110两側和导光板120之间具有间隔,分别开设一容纳灯管总成130的滑槽111。 The light guide plate 120 disposed in the frame 110, the frame has an interval between 120 and 110 on both sides of the light guide plate, respectively, defines a receiving chute 111 130 of the lamp assembly. 配合参阅图2,该灯管总成130包括灯管131、 一反射罩132 和两固定座133。 Referring to FIG. 2, the lamp assembly 130 includes a lamp 131, a reflector 132 and two fixing seat 133. 组装时,通过固定座133将灯管131固持于反射罩132内构成灯管总成130,将灯管总成130插设于滑槽111内。 In assembly, the holder 133 holding the lamp 131 in the lamp reflector 132 constituting the assembly 130, the lamp assembly 130 is inserted in the chute 111. 众所周知,灯管131和导光板120的相对泣置和距离是关系导光板120出射光线的辉度和均匀性的重要因素。 Is well known, the relative position and cry from the light guide plate 120 lamp 131 and 120 is an important factor in the luminance and uniformity of emitted light guide plate relationship. 但是,该现有技术面光源才莫块的灯管131、固定座133和导光4反120是相对独立的零部件,需通过边框110、固定座133和反射罩132等固定其相对位置,其组装过程繁多,灯管总成130插入滑槽111颇为困难,工时长;为确保精确的相对定位,要求各零部件具精度极高的外形尺寸, 从而导致成本增加;而且实际组装时,常常因为机械误差和人为因素导致产品的性能无法达到预期要求,进而影响面光源模块的整体光学性能。 However, this prior art tube 131 only Mo surface light source blocks, and the light guide holder 133 trans 4 is relatively independent components 120, 110 required by the frame, and a holder 133 like the reflector 132 is fixed relative position, many assembling process, the lamp assembly 130 is inserted into the chute 111 is quite difficult, and long working hours; to ensure precise relative positioning of the various components required dimensions with high precision, thereby resulting in increased costs; and when actually assembled, often because of mechanical error caused by human factors and can not achieve the desired performance of the product requirements, and thus the overall surface of the optical properties of the light source module. 另一种现有面光源模块可参阅2000年8月27日公开的中国专利申请公开第CN1246636A号(图3参照),其包括一导光板210、 一灯管220、两定位座230和一反射罩240。 Another conventional surface light source module may refer to China Patent Aug. 27, 2000 Application Publication No. CN1246636A (refer to FIG. 3), which includes a light guide plate 210, a lamp 220, two positioning seat 230 and a reflector cover 240. 该导光板210的表面设有定位突起211,该定位座230大致呈L形圆筒状,并且内部中空,灯管220的两端部插设于对应定位座230的一侧,定位座230的另一侧则收容灯管电源的导线250,且导线250的导体部分和灯管220 的引线(图未示)通过焊接固连。 The surface of the light guide plate 210 is provided with a positioning projection 211, the holder 230 is positioned substantially L-shaped cylindrical shape and hollow inside, both ends of the tube 220 is inserted in the side corresponding to the positioning seat 230, 230 of the positioning seat the wire receiving tube on the other side of the power supply 250, and a lead wire 250 (not shown) and a tube conductor portion 220 is secured by welding. 该反射罩240大致成圓弧状,其上设置和定位突起211相卡合的定位孔241,该反射罩240的内径大致等于定位座230的直径。 The reflector 240 into a substantially arc shape, on which the positioning hole 241 and positioning projection 211 engaged with the card, the inner diameter of the reflector 240 is positioned substantially equal to the diameter of the hub 230. 组装时,先将灯管220固设于定位座230中,再将灯管220和定位座230的组合容纳于反射罩240,随后卡合固定导光板210和反射罩240。 In assembly, the lamp 220 is fixed to the alignment block 230, then a combination of lamps 220 and a positioning holder 230 is accommodated in the reflector 240, the light guide plate 210 is then engaged and fixed reflector 240. 为提高面光源模块的光线出射均匀性和光源的利用率,可于导光板210两侧分别设置扩散板260 和反射板270。 In order to improve the light exit surface of the light source module and the light source utilization uniformity, both sides of the light guide plate 210 may be respectively disposed on the diffusion plate 260 and the reflection plate 270. 然而,该现有技术面光源模块虽然不必通过外部框架定位灯管220和导光板210,但是定位座230和导光板210仍为分立组件,致使灯管220和导光板210的组装过程复杂,耗费工时; 为精确控制导光板210和灯管220的相对位置,定位座230和反射罩240的外形尺寸精度要求高,致使成本增加;且实际组装时常因零部件的机械误差和操作不当导致导光板210和灯管220的相对定位难以达到设计要求,造成导光系统的整体光学性能下降。 However, this prior art surface light source modules, although not necessarily through the tube 220 and the outer frame positioning guide plate 210, but the positioning seat 230 and the light guide plate 210 remain discrete components, so that the lamp 220 and the light guide plate 210 complicated assembly process, consuming hours; precise control of the relative positions of the light guide plate 210 and tubes 220, 230 and spud high reflector 240 dimensions accuracy requirements, resulting in an increase in cost; and the actual assembly is often due to the mechanical error and improper operation of the light guide plate parts 210 and 220 located opposite the lamp is difficult to meet the design requirements, resulting in the overall performance of the optical light guide system is decreased. 另外, 由于导线250的导体部分和灯管220的引线通过焊接固连,焊接时, 灯管220的局部可能因高温而产生劣化现象,影响面光源模块的整体性能。 Further, since the wire portion 250 of the lead conductor and the lamp 220 is fixedly connected by welding, soldering, partial tube 220 may be generated due to heat degradation phenomena, influence the overall performance of the surface light source module. 【发明内容】本发明解决的技术问题在于提供一种组装便捷、导光板和线光源精确定位、光学性能优良的面光源模块。 SUMMARY OF THE INVENTION The present invention is to solve the technical problem is to provide a convenient assembly, a line light source and the light guide plate precise positioning, excellent optical performance of the surface light source modules. 本发明解决的技术问题的技术方案是:该面光源模块包括至少一线光源、至少一配合对应线光源的反射罩和一引导线光源所发出光线的传输方向的导光板,该导光板包括入光面和与其一体成型的支架,及配合该支架且与支架一体成型的连接器,该至少一线光源相对该导光板的入光面设置且收容于该支架中并与该连接器电性连接,该至少一反射罩与支架固连,且该反射罩的端部包括卡钩,该支架开设配合该卡钩的卡槽。 The present invention solves the technical problem is that technical solutions: the surface light source module comprises at least one linear light source, the light guide plate with at least a line corresponding to the light source reflector and the light source a guidewire transmission direction of light emitted from the light guide plate comprising the side bracket and integrally formed therewith, and with the stent and is integrally formed with the holder connector, the at least one linear light source into a surface opposing the light guide plate is provided and accommodated in the holder and connected to the electrical connector, the at least one bracket fixedly connected to the reflector, and an end portion of the reflector includes a hook, which bracket defines with the hook slot. 其中,该线光源可为冷阴极萤光灯管。 Wherein the line light source may be a cold cathode fluorescent tube. 该支架开设容纳对应线光源的端部的通孔,且支架内部围绕线光源端部固设隔热套管。 The bracket defines a through hole receiving a corresponding end portion of the line light source, a line light source and the inner end portion of the bracket around the thermal sleeve is fixed. 该导光板可为楔形或平板形导光板。 The light guide plate may be a flat plate or wedge-shaped light guide. 该导光板可为多边形结构,且至少一側相对设置一线光源。 The polygonal structure may be a light guide plate, and disposed opposite the at least one side of the line light. 该反射罩和支架可采用卡合、螺合或黏结等方式固定。 The reflector and the holder can be fixed like engagement, screwing or bonding manner. 该反射罩亦可进一步与该导光板固连。 The reflector may be further secured to the guide plate. 相较现有技术,本发明的有益效果是:由于面光源模块的支架和导光板一体成型,使得组装极为便捷,并且线光源和导光板的相对位置仅仅取决于支架的精度,易于实现精确控制,使得组装结果符合设计要求,可以降低组装成本并且提高导光系统的整体光学性能。 Compared with the prior art, the beneficial effects of the present invention is that: since the surface light source module and the light guide holder integrally formed, so that the assembly is very convenient, and the relative position of the line light source and the light guide depends only on the accuracy of the stent is easy to achieve precise control , so that the assembly results meet the design requirements, and the assembly cost can be reduced to improve the overall performance of the optical system of the light guide. 【附图说明】图1是一种现有技术面光源模块的组装示意图。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an assembled view of the prior art surface light source module. 图2是图1所示灯管总成的立体图。 FIG 2 is a perspective view of the lamp assembly shown in FIG. 图3是又一种现有技术面光源模块的立体分解图。 FIG 3 is another exploded perspective view of a prior art surface light source modules. 图4是本发明面光源模块的灯管和导光板的组合图。 FIG 4 is a combination of FIGS lamp and a light guide plate faces the light source module of the present invention. 图5是图4的V部分的局部放大图。 FIG 5 is a partial enlarged view of portion V of FIG. 图6是本发明面光源模块的反射罩和灯管、支架的组合图。 FIG 6 is a surface light source lamp and the reflector module of the present invention, the combination of the bracket of FIG. 【具体实施方式】请参阅图4,本发明面光源模块包括一导光板20、两灯管10、 四灯管连接器50和配合灯管10的反射罩40(参见图6),该导光板20包括两入光面21和与其一体成型的四灯管支架30,该灯管10 相对该导光板20的入光面21设置且收容于灯管支架30中,该反射罩40与灯管支架30固连,且包围该灯管10。 DETAILED DESCRIPTION OF THE INVENTION Referring to FIG. 4, the surface light source module according to the present invention comprises a light guide plate 20, two lamps 10, four lamps 50 and a mating connector 10 of the lamp reflector 40 (see FIG. 6), the light guide plate 20 includes two light incident surface 21 and four lamp bracket 30 formed integrally therewith, the tube 10 relative to the guide plate 21 is provided in the surface 20 and received in the lamp holder 30, the reflector 40 and the lamp holder 30 is fixedly connected to and surrounding the lamp 10. 该灯管连接器50连通灯管10和外部电源(图未示),其固持于该灯管支架30内。 The lamp bulb 10 communication connector 50 and the external power supply (not shown), which is retained within the bulb holder 30. 配合参阅图5,该灯管10大致呈圆筒状,用以发射光线至导光板20,是面光源模块的关键元件,其可为CCFL ( Cold Cathode Fluorescent Light,冷阴极荧光)灯管或其它线光源,其两端部11 分别收容于相应灯管支架30中。 Referring to FIG. 5, the lamp tube 10 is substantially cylindrical, for emitting light to the light guide plate 20, the key element is a surface light source module, which may be a CCFL (Cold Cathode Fluorescent Light, cold cathode fluorescent) lamp or other a line light source, both end portions 11 are received in the respective bulb holder 30. 该导光板20大致为矩形平板,通常采用玻璃、PMMA ( Poly Methyl Meth Acrylate ,聚曱基丙烯酸曱酯)等材质制成,用以引导灯管10所发出光线的传输方向,将线光源转换为面光源,其表面可以设置网点或V形槽(图未示)以提高光线出射的辉度和均匀性,提升整体光学性能。 The light guide plate 20 is substantially rectangular flat plate, usually made of glass, PMMA (Poly Methyl Meth Acrylate, Poly Yue Yue methacrylic acid esters) and other materials for the guide tube 10 of the emitted light transmission direction, is converted into the line light source the surface light source, which surface may be provided V-shaped grooves or dots (not shown) to improve light emission uniformity of the luminance and to enhance the overall optical properties. 其入光面21处亦可镀覆抗反射膜层(未标示)。 At which the anti-reflection surface 21 can also be plated layer (not shown). 该灯管支架30采用射出成型或平板机械加工等方法与导光板20—体成型,自导光板20的四角延伸而成,其内部开设通孔31, 该通孔31的孔径和灯管10两端部11的直径相当以收容固持灯管10,实现灯管10和导光板20的精确定位。 The lamp holder plate 30 by injection molding or machining the light guide plate 20 and the like molded body, extending from the four corners of the light guide plate 20 from, the interior 31 defines a through hole, the through hole 31 of the aperture 10 and the two lamp equivalent diameter of the end 11 to the housing 10 holding the lamp, to achieve precise positioning of the bulb 10 and the light guide plate 20. 该灯管支架30还包括一用来固连反射罩40的卡槽32 (详后述)。 The lamp further comprises a bracket 30 secured to the card slot 3240 of the reflector (described later in detail later). 该灯管连接器50的一端电连接灯管10的引线(图未示),另一端通过导线51和外部电源连通。 One end of the lamp tube connector 50 is electrically connected to a lead (not shown) of the bulb 10, and the other end communicates through a wire 51 and an external power source. 当然,该灯管连接器50亦可和灯管支架30—体成型,以进一步简化组装过程。 Of course, the lamp tube and the connector tube 50 may stand 30- shaping to further simplify the assembly process. 为避免面光源模块长期使用时,灯管10持续高温对导光板20 光学性能的影响,本实施例中,灯管支架30内部围绕灯管10插入灯管支架30的端部11固设一采用隔热材质制成的隔热套管60。 In order to avoid a surface light source module used for a long, continuous high temperature lamp 10 in the optical properties of the light guide plate 20, in this embodiment, the lamp holder 30 around the inner tube 10 is inserted into the lamp holder 30 is fixed to the end portion 11 using a thermal sleeve 60 made of insulating material. 请配合参阅图6,该反射罩40包围灯管10,并且和导光板20 的边缘连接,使灯管IO发出的光线可以更为有效的导入导光板20。 Please referring to FIG. 6, the reflector 40 surrounds the lamp 10 and the light guide plate 20 and the edge connector, so that the light emitted from the lamp IO can be more effectively introduced into the light guide plate 20. 该反射罩40采用金属或塑料制成,其端面大致为U形,内表面镀有反射膜,该反射膜可为银、铝等具高反射率的膜层。 The reflector 40 is made of metal or plastic, which is generally U-shaped end surface, an inner surface coated with a reflective film, the reflective film may be the film with a high reflectance as silver, aluminum or the like. 该反射罩40 的两端均具一突出部与对应灯管支架30相配合,该突出部进一步延伸出两卡钩41,通过卡钩41和灯管支架30的卡槽32相卡合以固定反射罩40和灯管支架30。 The ends 40 of each reflector having a projection 30 cooperates with a corresponding lamp holder, the protruding portion further extending the hooks 41, hook 41 through the slot 32 and the lamp holder 30 is engaged with the card at a fixed reflector 40 and lamp holder 30. 组装时,将灯管10的端部11插入灯管支架30的通孔31内, 和灯管连接器50电连接。 In assembly, the end portion 10 of the bulb 11 is inserted into the through hole 30 of the lamp holder 31, and electrical connector 50 is connected to the lamp. 随后,固连反射罩40和灯管支架30,使反射罩40包围灯管10,形成本发明的面光源模块。 Subsequently, fixedly connected to the lamp holder 40 and the reflector 30, the reflective shield 40 surrounds bulb 10 to form a surface light source module of the present invention. 当然,该导光板20并不限于本实施例描述的矩形平板,其亦可为一侧设置线光源的楔形导光板,或三侧、四侧设置线光源的导光板、或具多个入光侧面且至少一侧设置线光源的多边形导光板等。 Of course, the light guide plate 20 is not limited to the embodiments described in the present embodiment a rectangular flat plate, which is also provided a wedge-shaped side of a line light source for the light guide plate, or three sides, four sides of a light guide plate disposed line light source, or with a plurality of the light incident a line light source side and provided at least one side of a polygonal light guide plates. 又,该反射罩40和灯管支架30的固连方式亦不限于本实施例描述的卡合关系。 Further, the reflector 40 is fixedly connected manner and the lamp holder 30 is engaged not only restricted to the relationship described in the present embodiment. 如,可于反射罩40端部和灯管支架30对应设置定位元件和定位孔,或均开设螺孔以容纳螺栓等固定元件,或采用粘胶粘合固定,该反射罩40亦可与导光板20边缘固连。 For example, the end portion 40 may be 30 and the lamp holder to the reflector is provided corresponding to the positioning member and the positioning holes or screw holes are opened to receive a fixing member such as a bolt, or secured using an adhesive glue, with the reflector 40 can also be turned an edge light panel 20 is fixedly connected. 另,本发明面光源模块可进一步包括扩散板与反射板,以增强光学性能。 Also, the surface light source module of the present invention may further include a diffusion plate and the reflection plate, to enhance optical performance.

Claims (9)

  1. 1. 一种面光源模块,其包括至少一用以发出光线的线光源、一引导线光源所发出光线的传输方向的导光板和至少一配合对应线光源的反射罩,该导光板包括入光面,该至少一线光源相对入光面设置,其特征在于:该导光板还包括与其一体成型的支架,及配合该支架且与支架一体成型的连接器,该至少一线光源收容于该支架中并与该连接器电性连接,该至少一反射罩与支架固连,且该反射罩的端部包括卡钩,该支架开设配合该卡钩的卡槽。 1. A surface light source module, which comprises at least one linear light sources to emit light, a light guide wire transmission direction of the light emitted by the light guide plate and the line corresponding to the at least one light source with reflector, a light guide plate comprising the surface, at least the light incident surface disposed opposite source line, wherein: the light guide plate further comprising a bracket formed integrally therewith, and with the stent and is integrally formed with the holder connector, the at least one linear light source is accommodated in the holder and connected to the electrical connector, the at least one bracket fixedly connected with the reflector, and the reflector portion includes a hook end which defines with the hook bracket slot.
  2. 2. 如权利要求1所述的面光源模块,其特征在于该线光源为冷阴极萤光灯管。 The surface light source module of claim 1 as claimed in claim 2, wherein the line light source is a cold cathode fluorescent tube.
  3. 3. 如权利要求1所述的面光源模块,其特征在于该支架开设容纳对应线光源的端部的通孑L 。 The surface light source module according to claim 1, characterized in that the holder defines larvae L through the end portion of the received light corresponding to the line.
  4. 4. 如权利要求3所述的面光源模块,其特征在于该支架内部围绕线光源的端部固设隔热套管。 4. The surface light source module according to claim 3, characterized in that the inner end portion of the solid line light source provided around the stent thermal sleeve.
  5. 5. 如权利要求1所述的面光源模块,其特征在于该反射罩与支架可通过螺接或粘合的方式固连。 5. The surface light source module according to claim 1, characterized in that the reflector and the holder may be secured by screwing or gluing manner.
  6. 6. 如权利要求1所述的面光源模块,其特征在于该导光板可为楔形或平板形导光板。 A surface light source module as claimed in claim 1, characterized in that the light guide plate and wedge-shaped light guide plate.
  7. 7. 如权利要求1所述的面光源模块,其特征在于该导光板为多边形导光板,且至少一侧设置一线光源。 7. The surface light source module according to claim 1, characterized in that the light guide is a polygonal light guide plate, a light source and at least one side line.
  8. 8. 如权利要求1所述的面光源模块,其特征在于该导光板的表面设有网点或V形槽。 A surface light source module as claimed in claim 1, wherein a surface of the light guide plate is provided with V-shaped grooves or outlets.
  9. 9. 如权利要求1所述的面光源模块,其特征在于该反射罩的内表面镀覆具高反射率的反射膜层。 9. The surface light source module according to claim 1, characterized in that the inner surface of the reflector is plated with a reflective film of high reflectivity.
CN 02151998 2002-11-14 2002-11-14 Planar light source module CN100419526C (en)

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Application Number Priority Date Filing Date Title
CN 02151998 CN100419526C (en) 2002-11-14 2002-11-14 Planar light source module

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CN100419526C true CN100419526C (en) 2008-09-17

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100468167C (en) 2005-12-07 2009-03-11 群康科技(深圳)有限公司;群创光电股份有限公司 Back-light apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1246636A (en) 1998-08-27 2000-03-08 精工爱普生株式会社 Bias light unit and electronic device
US6181071B1 (en) 1997-02-28 2001-01-30 Mitsubishi Denki Kabushiki Kaisha Display panel apparatus having reduced capacitive coupling
CN2431617Y (en) 2000-07-21 2001-05-23 广东梅县梅雁科技开发有限公司 Light conducting plate
CN2454624Y (en) 2000-07-14 2001-10-17 樊邦弘 Day light lamp carriage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6181071B1 (en) 1997-02-28 2001-01-30 Mitsubishi Denki Kabushiki Kaisha Display panel apparatus having reduced capacitive coupling
CN1246636A (en) 1998-08-27 2000-03-08 精工爱普生株式会社 Bias light unit and electronic device
CN2454624Y (en) 2000-07-14 2001-10-17 樊邦弘 Day light lamp carriage
CN2431617Y (en) 2000-07-21 2001-05-23 广东梅县梅雁科技开发有限公司 Light conducting plate

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