CN104460112A - Backlight, LED light bar and display device - Google Patents

Backlight, LED light bar and display device Download PDF

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Publication number
CN104460112A
CN104460112A CN 201410782841 CN201410782841A CN104460112A CN 104460112 A CN104460112 A CN 104460112A CN 201410782841 CN201410782841 CN 201410782841 CN 201410782841 A CN201410782841 A CN 201410782841A CN 104460112 A CN104460112 A CN 104460112A
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light
region
bar
emitting diode
light emitting
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CN 201410782841
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Chinese (zh)
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CN104460112B (en
Inventor
王榜
金珍
胡宇飞
陈贺
曹杰
于桂洋
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合肥鑫晟光电科技有限公司
京东方科技集团股份有限公司
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Priority to CN201410782841.2A priority Critical patent/CN104460112B/en
Publication of CN104460112A publication Critical patent/CN104460112A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073Light emitting diode [LED]
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133603Direct backlight with LEDs

Abstract

The invention discloses a backlight, an LED light bar and a display device and aims to solve the problem of shadow of corners of a lighting side of the backlight and improve image uniformity of the backlight so as to enhance image quality of a liquid crystal display. The backlight comprises an LGP (light guide plate) and the LED light bar. At least one end of the LED light bar inclines towards the LGP. The LGP is arranged at a position corresponding to the inclining position of the LED light bar and inclines in the direction the same with the LED light bar.

Description

一种背光源、发光二极管灯条、显示装置 A backlight LED light bar, the display device

技术领域 FIELD

[0001] 本发明涉及背光、显示技术领域,尤其涉及一种背光源、发光二极管灯条、显示装置。 [0001] The present invention relates to a backlight, display technology, and more particularly, to a backlight, an LED light bar, the display device.

背景技术 Background technique

[0002] 液晶显示装置(11(1111(1 0781^1 01邓1奶,[⑶)具有机身薄、省电、无福射等众多优点,得到了广泛的应用。现有市场上的液晶显示装置大部分为背光型液晶显示装置,其包括液晶面板及背光模组。由于液晶面板本身不发光,需要借由背光模组提供的光源来正常显示影像,因此,背光模组成为液晶显示装置的关键组件之一。背光模组依照光源入射位置的不同分为侧入式背光模组与直下式背光模组两种。直下式背光模组是将发光光源,例如发光二极管仏匕仏010(16,120)设置在液晶面板后方,直接形成面光源提供给液晶面板。而侧入式背光模组是将背光源[£0灯条(“曲力1381-)设置于液晶面板侧后方的背板边缘,[£0灯条发出的光线从导光板(“曲力6111(16 ?1社6,⑷?)一侧的入光面进入导光板,经反射和扩散后从导光板出光面射出,再经由光学膜片组以形成面 [0002] The liquid crystal display device (11 (1111 (10 781 ^ 1 101 DENG milk, [⑶) having a thin body, low power, non-radio-fu many other advantages, has been widely used liquid crystal existing on the market most of the display device backlight type liquid crystal display device comprising a liquid crystal panel and a backlight module. Since the liquid crystal panel itself does not emit light, a light source provided by the need to borrow a backlight module to display the image properly, therefore, the backlight module of the liquid crystal display device becomes one of the key components. backlight module into the side-type backlight module backlight module in accordance with two kinds of different light sources incident position. backlight module is a light source, a light emitting diode 010 Fo Fo dagger ( 16,120) disposed behind the liquid crystal panel, a surface light source formed directly supplied to the liquid crystal panel while side-type backlight module is a backlight [0 £ light bar ( "Qu force 1381-) disposed rearward of the back side of the liquid crystal panel plate edge, [0 £ light emitted from the light guide light bar ( "Qu force 6111 (16? 1 Co. 6, ⑷?) to enter the light incident surface side of the light guide plate, and reflected and diffused light emitted from the light guide exit surface , and then through the optical film surface to form a group 源提供给液晶面板。侧光式背光模组由于成本较低,并具有将液晶显示装置做到窄边框,超薄化等优势,应用越来越广泛。 Source is supplied to the liquid crystal panel. Backlight assembly due to lower cost, and liquid crystal display device having a narrow bezel to do, other advantages of thin, widely applied.

[0003] 现有技术中,常用的背光源为[£0背光源,如图1所示,120背光源包括多个1^0灯条10,每个[£0灯条10中包括多个封装后的1^0 11,每个封装后的[£0 11的亮度相同,相邻两个封装后的[£0 11之间的间距相等,120灯条10与导光板12的一侧边贴合,导光板12的入光面无斜度,[£0背光源两侧,特别是角落部分是封装后的[£0 11的光能叠加盲区,会出现角落暗影13。 [0003] In the prior art, is commonly used in backlight [£ 0 of the backlight shown in Figure 1, the backlight 120 includes a plurality of light bar 10 ^ 0, each [0 £ light bar 10 includes a plurality 1 ^ 011 encapsulated, [£ the same brightness per package 011, [£ 011 is equal to the spacing between the two adjacent packages, a light bar 120 side of the light guide plate 10 and 12 bonded to the light guide plate 12 into the surface without inclination, [both sides of the backlight source, particularly a corner portion £ 0 [£ superimposed light blind 011, there will be 13 after the package corners shadow. 角落暗影是指在侧入光式背光源中,由于封装后的[£0的发射角受到限制,在封装后的[£0均匀分布的情况下,[£0背光源中间部分是各个封装后的[£0光能叠加的集中区域,该区域亮度较强,120背光源两侧,特别是角落部分则是封装后的[£0光能叠加的盲区,因此该区域亮度较弱。 Corner shadow means edge-light type backlight, since the [£ emission angle 0 is limited by the encapsulated, in [0 uniform distribution of the encapsulated £, [£ 0 backlight intermediate portion after the packages the [£ 0 superimposed energy concentration area, strong luminance in the region, on both sides of the backlight 120, in particular the corner part is [0 £ superimposed light blind packaged, so that the weaker area luminance. 现有技术很难通过调整导光板的网点图形(即“虹!!)来解决亮度能量分布,背光源画面就会呈现出两个角落发暗的情况。 The prior art dot pattern is difficult to adjust the light guide plate (i.e., "Rainbow !!) to solve the luminance distribution of the energy, the screen will exhibit a backlight case by two dark corners.

[0004] 综上所述,现有技术的[£0背光源会呈现出两个角落发暗的情况,影响背光源的光学和画面,进而影响整个液晶显示器的画面品质。 [0004] In summary, the prior art [0 £ backlight will exhibit two corners where the dark, and the influence of the backlight of the optical screen, thereby affecting the picture quality of the whole liquid crystal display.

发明内容 SUMMARY

[0005] 本发明实施例提供了一种背光源、发光二极管灯条、显示装置,用以改善背光源发光面的角落暗影现象,提高背光源的画面均一性,进而提高液晶显示器的画面品质。 Embodiment [0005] The present invention provides a backlight, an LED light bar, the display device, the corner of the shadow phenomenon to improve the light emitting surface of the backlight, to improve the uniformity of the screen backlight, thereby improving the image quality of the liquid crystal display.

[0006] 本发明实施例提供的一种背光源,包括导光板、发光二极管灯条,其中,所述发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向所述导光板,所述导光板在与所述发光二极管灯条倾斜位置对应的位置处倾斜设置,所述导光板的倾斜方向与所述发光二极管灯条的倾斜方向一致。 [0006] A backlight according to an embodiment of the present invention, includes a light, an LED light bar, wherein the LED light bar is provided at least one end is inclined, the inclined direction of the LED bar by a point of the guide light panel, the light guide plate at a position corresponding to the light bar disposed obliquely inclined, the inclination direction of the light guide plate coincides with the direction of inclination of the LED bar.

[0007] 由本发明实施例提供的背光源,包括导光板、发光二极管灯条,其中,发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向导光板,导光板在与发光二极管灯条倾斜位置对应的位置处倾斜设置,导光板的倾斜方向与发光二极管灯条的倾斜方向一致,发光二极管灯条的至少一端倾斜设置,同时导光板的至少一端倾斜设置,与现有技术发光二极管灯条和导光板的设置相比,能够调整[£0发光面的角度,使背光源光能叠加区域的范围扩大,有效缩小光能叠加盲区,从而改善了背光源发光面角落暗影的现象,提高了背光源的画面均一性。 [0007] The backlight according to an embodiment of the present invention, includes a light, an LED light bar, wherein the at least one end inclined strips of light-emitting diode, the inclined direction of the light-emitting diode point light bar light guide, the light guide plate and light bar at a position corresponding to the inclination inclined, the direction of the light guide plate uniform tilt direction and the LED light bar, light bar is provided at least one end inclined, while the guide plate is provided at least one end inclined with conventional a light emitting diode is provided and the light guide plate compared with light bar, can be adjusted [£ emitting surface angle of 0, that the scope of the backlight light superimposition region expansion, effectively reduce the blind spot light superposed, thereby improving the light emitting surface of the backlight corner Shadow phenomenon, to improve the uniformity of the screen backlight.

[0008] 较佳地,所述发光二极管灯条与所述导光板紧密贴合。 [0008] Preferably, the light bar in close contact with the light guide plate.

[0009] 这样,发光二极管灯条与导光板紧密贴合时,发光二极管发出的光不会在空气中传播,能够很好的避免光线的损失,提高背光源的性能。 [0009] Thus, the light bar and the light guide plate tightly engaged, the light emitted from the light emitting diode will not spread in the air, can be good to avoid light loss and improve the performance of the backlight.

[0010] 较佳地,所述发光二极管灯条的两端对称设置。 [0010] Preferably, both ends of the LED bar symmetrically disposed.

[0011] 这样,发光二极管灯条的两端对称设置能够更好的改善背光源发光面角落暗影的现象,提高背光源的画面均一性。 [0011] Thus, both ends of the light bar symmetrically provided to better improve the backlight light-emitting surface of the corner of the shadow, and to enhance the uniformity of the screen backlight.

[0012] 较佳地,所述导光板与所述发光二极管灯条一端对应的位置与所述导光板与所述发光二极管灯条另一端对应的位置对称。 [0012] Preferably, the position of the light guide plate and the light emitting diode lamp bar end position corresponding to the other end of the light guide plate and the light emitting diode light bar corresponding symmetric.

[0013] 这样,导光板的这种设置能够更好的改善背光源发光面角落暗影的现象,提高背光源的画面均一性。 [0013] Thus, this arrangement of the light guide plate of the backlight can be improved better light emitting surface of the corner of the shadow, and to enhance the uniformity of the backlight of the screen.

[0014] 较佳地,所述发光二极管灯条中的发光二极管均匀设置;或,所述发光二极管灯条包括第一区域和第二区域,所述第一区域中的发光二极管之间的距离大于所述第二区域中的发光二极管之间的距离,其中,所述第一区域位于所述发光二极管灯条的一端或两端。 [0014] Preferably, the light emitting diode light emitting diode strips arranged evenly; or, the LED light bar comprises a first region and a second region, the distance between the light emitting diode of the first region is greater than the distance between the light emitting diodes of the second region, wherein the first region is located one or both ends of the light emitting diode lamp bar.

[0015] 这样,上述两种发光二极管的设置,在发光二极管灯条的实际制作过程中更加方便、简单。 [0015] Thus, the two light emitting diodes provided, in the actual production process is more convenient light emitting diode strip, simple.

[0016] 较佳地,所述第一区域中的发光二极管之间的距离1满足:1处080 = 1。 [0016] Preferably, the distance between the light emitting diode of the first region satisfies 1: 1 = 1 080. ,其中:1。 Where: 1. 表示第二区域中相邻两个发光二极管之间的距离,0表示当第一区域倾斜时,该第一区域所在平面与第二区域所在平面之间的夹角。 Denotes the distance between two adjacent light emitting diodes of the second region, the first region when 0 represents a tilt, the area where the first plane and the angle between the plane of the second region.

[0017] 这样,通过发光二极管的上述设置,能够更好的保证发光二极管灯条两端的发光范围不会变小。 [0017] Thus, the above-described light-emitting diodes can be better guaranteed across the emission range of the light bar is not reduced.

[0018] 较佳地,所述发光二极管灯条的基材柔性可弯曲;或所述发光二极管灯条的基材不可弯曲。 [0018] Preferably, the LED light bar is flexibly bendable substrate; or the inflexible substrate LED light bar.

[0019] 这样,发光二极管灯条的基材的选择更加灵活,且相对选择的材料的成本也较低。 [0019] Thus, substrate selection of the light bar is more flexible, and the cost of materials selected relatively low.

[0020] 较佳地,位于所述第一区域的发光二极管的亮度相同,位于所述第二区域的发光二极管的亮度相同,且位于所述第一区域的发光二极管的亮度大于位于所述第二区域的发光二极管的亮度。 [0020] Preferably, the light emitting diode located at the same luminance of the first area, the same brightness of the LED located second region, and the brightness of the LED located at the first region is greater than in said first brightness light emitting diodes of the second region.

[0021] 这样,当第一区域的发光二极管的亮度大于第二区域的发光二极管的亮度时,能够更好的增加导光板角落处的光线能量,从而能够更好的改善背光源发光面角落暗影的现象。 [0021] Thus, when the brightness of the LED brightness of the light emitting diode of the first region is greater than a second region, it is possible to increase the light energy of more corners of the light guide plate, it is possible to better improve the light emitting surface of the backlight corner Shadow The phenomenon.

[0022] 本发明实施例还提供了一种发光二极管灯条,其中,所述发光二极管灯条包括第一区域和第二区域,所述第一区域中的发光二极管之间的距离大于所述第二区域中的发光二极管之间的距离,其中,所述第一区域位于所述发光二极管灯条的一端或两端。 [0022] Embodiments of the present invention further provides an LED light bar, wherein the LED bar comprises a first region and a second region, the distance between the light emitting diode is greater than the first region the distance between the light emitting diode in the second region, wherein the first region is located one or both ends of the light emitting diode lamp bar.

[0023] 由本发明实施例提供的发光二极管灯条,由于该发光二极管灯条第一区域中的发光二极管之间的距离大于所述第二区域中的发光二极管之间的距离,故当发光二极管灯条一端倾斜时,不会对发光二极管灯条两端的发光范围有较大的影响。 LED bars provided in the [0023] embodiment of the present invention, since the distance between the light emitting diodes of the first light emitting region of the LED light bar is greater than the distance between the light emitting diode in the second region, so that when the light emitting diode when the inclined end of the light bar, no major effect on the range of the light emitting ends of the light bar.

[0024] 较佳地,所述第一区域中的发光二极管之间的距离1满足:1处080 = 1。 [0024] Preferably, the distance between the light emitting diode of the first region satisfies 1: 1 = 1 080. ,其中:1。 Where: 1. 表示第二区域中相邻两个发光二极管之间的距离,0表示当第一区域倾斜时,该第一区域所在平面与第二区域所在平面之间的夹角。 Denotes the distance between two adjacent light emitting diodes of the second region, the first region when 0 represents a tilt, the area where the first plane and the angle between the plane of the second region.

[0025] 这样,通过发光二极管的上述设置,能够更好的保证发光二极管灯条两端的发光范围不会变小。 [0025] Thus, the above-described light-emitting diodes can be better guaranteed across the emission range of the light bar is not reduced.

[0026] 较佳地,所述发光二极管灯条的基材柔性可弯曲;或所述发光二极管灯条的基材不可弯曲。 [0026] Preferably, the LED light bar is flexibly bendable substrate; or the inflexible substrate LED light bar.

[0027] 这样,发光二极管灯条的基材的选择更加灵活,且相对选择的材料的成本也较低。 [0027] Thus, substrate selection of the light bar is more flexible, and the cost of materials selected relatively low.

[0028] 较佳地,当所述发光二极管灯条的基材不可弯曲时,所述发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向导光板。 [0028] Preferably, when the LED lamp is not bent strip substrate, the LED light bar is provided at least one end is inclined, the inclined direction indicated by the point light bar light guide plate.

[0029] 这样,将发光二极管灯条倾斜设置时,当导光板也倾斜设置时,有利于将该发光二极管灯条与导光板贴合。 [0029] Thus, when the light bar is inclined arrangement, when the light guide plate is also inclined, the beneficial light bar attached to the light guide plate.

[0030] 较佳地,所述发光二极管灯条的两端对称设置。 [0030] Preferably, both ends of the LED bar symmetrically disposed.

[0031] 这样,发光二极管灯条的两端对称设置在实际制作过程中更加方便、简单。 [0031] Thus, both ends of the LED light bar is disposed symmetrically in practice more convenient production process simple.

[0032] 较佳地,位于所述第一区域的发光二极管的亮度相同,位于所述第二区域的发光二极管的亮度相同,且位于所述第一区域的发光二极管的亮度大于位于所述第二区域的发光二极管的亮度。 [0032] Preferably, the light emitting diode located at the same luminance of the first area, the same brightness of the LED located second region, and the brightness of the LED located at the first region is greater than in said first brightness light emitting diodes of the second region.

[0033] 这样,当第一区域的发光二极管的亮度大于第二区域的发光二极管的亮度时,能够更好的增加发光二极管灯条两端的光线能量。 [0033] Thus, when the brightness of the LED brightness of the light emitting diode of the first region is greater than the second region, more light energy can be increased at both ends of the light bar.

[0034] 本发明实施例还提供了一种显示装置,包括上述的背光源。 Example [0034] The present invention further provides a display apparatus comprising the above backlight.

[0035] 由本发明实施例提供的显示装置,由于该显示装置包括上述的背光源,故该显示装置的画面品质能够得到较大的提高。 [0035] The display apparatus provided by the present invention, since the display device includes a backlight described above, so the image quality of the display device can be greatly improved.

附图说明 BRIEF DESCRIPTION

[0036] 图1为现有技术的背光源的结构示意图; [0036] FIG. 1 is a schematic view of a prior art backlight;

[0037] 图2为本发明实施例提供的一种背光源的结构示意图; Structure [0037] FIG 2 A backlight according to an embodiment of the present invention, a schematic diagram;

[0038] 图3为本发明实施例提供的一种导光板的结构示意图; [0038] FIG. 3 is a schematic structure of a light guide plate according to an embodiment of the present invention;

[0039] 图4(幻和图4(6)分别为本发明实施例提供的一种发光二极管灯条的结构示意图; [0039] FIG. 4 (phantom in FIG. 4 and (6) a schematic structure of a light bar according to an embodiment of the present invention, respectively;

[0040] 图5为本发明实施例提供的另一种发光二极管灯条的结构示意图; [0040] FIG. 5 is a schematic structural diagram of another light-emitting diode bar according to an embodiment of the present invention;

[0041] 图6为本发明实施例提供的再一种发光二极管灯条的结构示意图。 [0041] FIG. 6 is a schematic structure of still another light-emitting diode bar according to an embodiment of the present invention.

具体实施方式 Detailed ways

[0042] 本发明实施例提供了一种背光源、发光二极管灯条、显示装置,用以改善背光源发光面的角落暗影现象,提高背光源的画面均一性,进而提高液晶显示器的画面品质。 [0042] The image quality of embodiments the present invention provides a backlight, an LED light bar, the display device, the corner of the shadow phenomenon to improve the light emitting surface of the backlight, to improve the uniformity of the screen backlight, thereby improving the liquid crystal display.

[0043] 为了使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0043] To make the objectives, technical solutions, and advantages of the present invention will become more apparent below in conjunction with the accompanying drawings of the present invention will be further described in detail, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0044] 如图2所示,本发明具体实施例提供了一种背光源,包括导光板20,发光二极管灯条21,发光二极管灯条21的至少一端倾斜设置,该倾斜方向由该发光二极管灯条21指向导光板20,导光板20在与发光二极管灯条21倾斜位置对应的位置处倾斜设置,导光板20的倾斜方向与发光二极管灯条21的倾斜方向一致,优选地,本发明具体实施例中发光二极管灯条21与导光板20紧密贴合,本发明具体实施例中的导光板20与发光二极管灯条一端对应的位置与导光板与发光二极管灯条另一端对应的位置对称设置,如图3所示,导光板20的两端201倾斜设置,与水平面存在一夹角,在实际设计中,为了更好的减小角落暗影,将该夹角设置为小于30度。 [0044] 2, the particular embodiment of the present invention provides a backlight including a light guide plate 20, the light bar 21, at least one end of the light bar 21 is inclined, the inclined direction of the light-emitting diode light bar 21 pointing light guide plate 20, the inclined guide plate 20 is provided at a position corresponding to the light bar 21 is inclined position, the inclination direction of the light guide plate 20 coincides with the inclination direction of the LED light bar 21, preferably, the present invention is particularly Example 21 in light bar light guide plate 20 in close contact embodiment, the position of the light guide plate in Example 20 to the position corresponding to one end of the light guide plate and the light bar and the other end of light emitting diode lamps symmetrically disposed corresponding to the specific embodiments of the present invention , as shown, both ends of the light guide plate 201 is inclined 20, there are three horizontal plane at an angle, in the actual design, in order to better reduce the shadow corner, this angle is set to less than 30 degrees. 具体地,本发明具体实施例可以通过研磨的方式将导光板20的至少一端研磨成如图3所示的导光板。 Specifically, at least one end of the grinding, the specific embodiments of the present invention can be milled by way of the light guide plate 20 into the light guide plate 3 shown in FIG.

[0045] 如图4(3)所示,本发明具体实施例中的发光二极管灯条21中的发光二极管均匀设置,发光二极管灯条21中包括多个封装后的发光二极管210,相邻两个发光二极管210之间的距离均为预先设定的距离1。 [0045] FIG. 4 (3), the light emitting diode 21 in the embodiment of the light bar particular embodiment of the present invention, provided a uniform, light-emitting diode bar 21 includes a plurality of the light emitting diode package 210, two adjacent the distance between the light emitting diodes 210 are a predetermined distance. . 当然,本发明具体实施例中的发光二极管灯条21中的发光二极管也可以不均匀设置,如图4(4所示,本发明具体实施例中的发光二极管灯条21包括第一区域211和第二区域212,第一区域211中的发光二极管210之间的距离1大于第二区域212中的发光二极管210之间的距离1。,其中,第一区域211位于发光二极管灯条21的一端或两端,图中仅示出了第一区域211位于发光二极管灯条21两端的情况。 Of course, the light emitting diode 21 in the embodiment of the light bar particular embodiment of the present invention may also be provided unevenly, 4 (4, embodiments of the light bar 21 includes a particular embodiment of the present invention, a first region 211 and a second region 212, the light emitting diode 211 in the first region 210 is greater than the distance between the distance between the light emitting diodes 210 in the second region 212 1, wherein the first region 211 located at one end of the LED bar 21 or both ends, showing only a case where a first region 211 located at both ends of the light bar 21.

[0046] 本发明具体实施例中的发光二极管灯条21的基材柔性可弯曲;或发光二极管灯条21的基材不可弯曲。 [0046] Examples of the base strip 21 of the light emitting diode particular embodiment of the present invention flexibly bendable; light bar or inflexible substrate 21. 当发光二极管灯条21的基材柔性可弯曲时,当将该发光二极管灯条21与本发明具体实施例中的导光板20贴合时,在导光板20的倾斜位置处可以通过将该发光二极管灯条21进行倾斜打件的方式将该发光二极管灯条21与导光板20贴合,当将发光二极管灯条21进行倾斜打件后,发光二极管灯条21倾斜位置处的发光二极管210的发散角度也会发生一定的变化,这样可以更好的调节发光二极管210的发光角度,能够很好的减小背光源的角落暗影。 When the light bar 21 of the flexible substrate is bent, when a specific embodiment the LED light bar 21 of the present invention the light guide plate 20 are attached together, at an inclined position through the light guide plate 20 may be a light emitting light bar 21 is inclined manner the play member 21 and the light bar light guide plate 20 bonded, when the light bar 21 is inclined playing member, a light emitting diode 21 at the inclined position of the LED bar 210 certain divergence angle change will occur, which can better adjust the angle of light emitting diode 210 can be well reduced backlight corner shadow. 而当发光二极管灯条21的基材不可弯曲时,若要将本发明具体实施例中的发光二极管灯条21与本发明具体实施例中的导光板20贴合,则需要将发光二极管灯条21的至少一端预先倾斜设置,使得该发光二极管灯条21的倾斜角度与导光板20的倾斜角度相等,具体参见图5所示,优选地,本发明具体实施例中将发光二极管灯条21的两端对称设置。 When the substrate is not curved strip 21 of light-emitting diode, to the specific examples of the light bar 21 of the present invention, the specific embodiment of the present invention, the light guide plate 20 in the embodiment of the bonding, it is necessary to LED bar 21 in advance at least one end inclined such that the inclination angle of the light bar 21 is equal to the inclination angle of the light guide plate 20, see in particular FIG. 5, preferably, in the embodiment of the LED light bar 21 of the present invention symmetrically disposed at both ends.

[0047] 如图5所示,本发明具体实施例中第一区域211中的发光二极管210之间的距离1满足:1处08 0 = 1。 As shown in [0047] FIG. 5, the light emitting diode described in the first region 211 in the particular embodiment of the present invention satisfies the distance between 2101: 1080 = 1 at. ,其中:1。 Where: 1. 表示第二区域212中相邻两个发光二极管之间的距离,其中,^为第一区域211所在平面与第二区域212所在平面之间的夹角。 Denotes the distance between two adjacent light emitting diodes 212 in the second region, wherein a first region 211 where ^ is the angle between plane 212 and the plane of the second region. 优选地,本发明具体实施例中第一区域211中的发光二极管的个数为一个,当发光二极管的个数为一个时,该发光二极管与其相邻的发光二极管之间的距离为1。 Preferably, the present invention is specifically the number of light-emitting diode according to the first region 211 is implemented as one, when the number of the light emitting diode is a distance between the adjacent light-emitting diode is a light emitting diode. .

[0048] 优选地,本发明具体实施例中位于第一区域211的发光二极管210的亮度相同,位于第二区域212的发光二极管210的亮度相同,且位于第一区域211的发光二极管210的亮度大于位于第二区域212的发光二极管210的亮度。 [0048] Preferably, the specific embodiments of the present invention located in a first region 211 of the light emitting diode 210 of the same brightness, the light emitting diode 212 located in the second region 210 of the same brightness, and the brightness of the LED located at the first region 211 210 located in a second region is larger than a light emitting diode 210, 212 luminance. 具体地,本发明具体实施例中发光二极管灯条21中位于第一区域211的发光二极管210的亮度比位于第二区域212的发光二极管210的亮度高4% -8%,这时发光二极管灯条21两端位置处的光线能量较发光二极管灯条21的其它位置处的光线能量加强。 Specifically, particular embodiments of the present invention the light bar 21 is located in the first region 211 of the light emitting diode 210 is higher than the luminance of the light emitting diodes of the second region 212 of the 210 luminance 4-8%, then the light emitting diode Article 21 of light energy at the end positions representing the energy ray light bar 21 at other locations of the reinforcement.

[0049] 如图2所示,封装后的发光二极管210的发光角度为120度,即封装后的发光二极管210发出的光线23之间的夹角为120度。 [0049] As shown in FIG. 2, the light emitting diode 210 encapsulated light-emitting angle is 120 degrees, i.e. the angle between the light emitting diode 23 after the package 210 emits is 120 degrees. 本发明具体实施例中,导光板20倾斜位置处对应的封装后的发光二极管210入射到导光板20中的入射角度变大,与现有技术相比,能够有效的缩小角落暗影22的区域。 Specific embodiments of the present invention, the light emitting diode corresponding to the inclined position of the light guide plate 20 is incident on the incident angle of the package 210 of the light guide plate 20 becomes large, compared with the prior art, it can effectively reduce the shadow 22 in the corner regions. 当导光板20倾斜位置处对应的封装后的发光二极管210选用高亮度的[£0时,发光二极管灯条21两端封装后的发光二极管210发出的光线能量加强,从而使得角落位置处的光线能量更进一步地加强,与现有技术相比,能够更加有效的缩小角落暗影22的区域。 When the light emitting diode corresponding to the position of the light guide plate 20 is inclined at a selected package 210 [£ 0, the light energy of the light bar 21 at both ends of the light emitting diode package 210 after the reinforcing high luminance emitted, so that light at the corner positions Still further strengthen energy, compared to the prior art, can more effectively reduce the shadow 22 in the corner regions. 即本发明具体实施例提供的背光源,通过增加导光板20角落光线能量,调整发光二极管210发光面的角度,能够有效消除背光源画面的角落暗影现象。 That particular embodiment of the present invention, a backlight is provided by increasing the energy of the light guide plate 20 corners, adjust the angle of the light emitting surface of the light emitting diode 210, the corner of the shadow can effectively eliminate the phenomenon of the backlight of the screen.

[0050] 本发明具体实施例还提供了一种发光二极管灯条21,如图4(6)所示,发光二极管灯条21包括第一区域211和第二区域212,第一区域211中的发光二极管210之间的距离1大于第二区域212中的发光二极管210之间的距离1。 [0050] Specific embodiments of the present invention further provides a LED light bar 21, as shown in FIG. 4 (6), the LED light bar 21 comprises a first region 211 and second region 212, a first region 211 the distance between the light emitting diode 210 is greater than a second region between the light emitting diodes 210 212 1. ,其中,第一区域211位于发光二极管灯条21的一端或两端。 Wherein the first emission region 211 located at one or both ends of the light bar 21.

[0051] 优选地,如图6所示,本发明具体实施例提供的发光二极管灯条21,第一区域211中的发光二极管之间的距离1满足:1处08 0 = 1。 [0051] Preferably, as shown in FIG. 6, the light bar provided in particular Example 21 of the present invention, the distance between the light emitting diode in a first region 211 satisfies 1: 1080 = 1 at. ,其中:1。 Where: 1. 表示第二区域212中相邻两个发光二极管之间的距离,0表示当第一区域211倾斜时,该第一区域211所在平面与第二区域212所在平面之间的夹角。 It denotes the distance between two adjacent light emitting diodes in the second region 212, 0 indicates the first region 211 when the inclined angle of the first region 211 is located between plane 212 and the plane of the second region. 本发明具体实施例中的发光二极管灯条21的基材柔性可弯曲;或发光二极管灯条21的基材不可弯曲。 Examples of the light bar 21 of the flexible substrate may be bent particular embodiment of the present invention; light bar or inflexible substrate 21. 当发光二极管灯条21的基材不可弯曲时,发光二极管灯条21的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向导光板,优选地,本发明具体实施例中的发光二极管灯条21的两端对称设置,如图6所示。 When the LED light bar is not bent substrate 21, at least one end of the light bar 21 is inclined, the inclination direction of the LED light bar pointing to the light guide plate, preferably a light emitting diode lamp of this embodiment of the present invention DETAILED DESCRIPTION both ends of the bar 21 are disposed symmetrically, as shown in FIG.

[0052] 综上所述,在背光源的具体设计中,发光二极管灯条与导光板搭配的优化程度将直接影响背光源的亮度与均一性,进而影响整个液晶显示器的画面品质。 [0052] In summary, the specific design of the backlight, the light bar and the guide plate with the optimization will directly affect the degree of uniformity of the luminance of the backlight, thereby affecting the picture quality of the whole liquid crystal display. 本发明具体实施例中,将发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向导光板,导光板在与发光二极管灯条倾斜位置对应的位置处倾斜设置,导光板的倾斜方向与发光二极管灯条的倾斜方向一致,采用这种新的发光二极管灯条与导光板搭配的方式,能够使得背光源光能叠加区域的范围扩大,有效缩小光能叠加盲区,从而改善了背光源发光面角落暗影的现象,提高了背光源的画面均一性。 Specific embodiments of the present invention, the LED light bar is provided at least one end is inclined, the inclined direction of the light-emitting diode point light bar light guide, the inclined guide plate is provided at a position corresponding to a position inclined to the LED bar light guide plate same oblique direction and the oblique direction of the LED light bar, using this new light bar with the guide plate, it is possible that the range of the backlight light superimposition region expansion, effectively reduce the blind spot light superposed, thereby improving backlight light-emitting surface of the corner of the shadow, and to enhance the uniformity of the backlight of the screen.

[0053] 显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。 [0053] Obviously, those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. 这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。 Thus, if these modifications and variations of the present invention fall within the claims of the invention and the scope of equivalents thereof, the present invention intends to include these modifications and variations.

Claims (15)

1.一种背光源,包括导光板、发光二极管灯条,其特征在于,所述发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向所述导光板,所述导光板在与所述发光二极管灯条倾斜位置对应的位置处倾斜设置,所述导光板的倾斜方向与所述发光二极管灯条的倾斜方向一致。 1. A backlight, comprising a light guide plate, an LED light bar, characterized in that the LED light bar is provided at least one end is inclined, the inclined direction indicated by the LED bar directed toward the light guide plate, the guide an optical plate disposed at a position obliquely inclined position corresponding to the light bar, the inclination direction of the light guide plate coincides with the direction of inclination of the LED bar.
2.根据权利要求1所述的背光源,其特征在于,所述发光二极管灯条与所述导光板紧密贴合。 2. The backlight according to claim 1, wherein the light bar in close contact with the light guide plate.
3.根据权利要求1所述的背光源,其特征在于,所述发光二极管灯条的两端对称设置。 3. The backlight according to claim 1, wherein said light emitting diode light bar ends disposed symmetrically.
4.根据权利要求1所述的背光源,其特征在于,所述导光板与所述发光二极管灯条一端对应的位置与所述导光板与所述发光二极管灯条另一端对应的位置对称。 The backlight according to claim 1, characterized in that the position of the light guide plate and the light emitting diode lamp bar end position corresponding to the other end of the light guide plate and the light emitting diode light bar corresponding symmetric.
5.根据权利要求1所述的背光源,其特征在于,所述发光二极管灯条中的发光二极管均匀设置;或,所述发光二极管灯条包括第一区域和第二区域,所述第一区域中的发光二极管之间的距离大于所述第二区域中的发光二极管之间的距离,其中,所述第一区域位于所述发光二极管灯条的一端或两端。 The backlight according to claim 1, wherein said light emitting diode light emitting diode disposed uniformly strips; or, the LED light bar comprises a first region and a second region, said first the distance between the light emitting diode region is greater than the distance between the light emitting diode in the second region, wherein the first region is located one or both ends of the light emitting diode lamp bar.
6.根据权利要求5所述的背光源,其特征在于,所述第一区域中的发光二极管之间的距离I满足:l*C0Sa = Itl,其中-、表示第二区域中相邻两个发光二极管之间的距离,α表示当第一区域倾斜时,该第一区域所在平面与第二区域所在平面之间的夹角。 The backlight according to claim 5, characterized in that the distance between the light emitting diode in the first region I satisfies: l * C0Sa = Itl, wherein - represents a second region of two adjacent the distance between the light emitting diode, when the [alpha] represents a first inclined region, the region where the angle between the first plane and the plane of the second region is located.
7.根据权利要求5所述的背光源,其特征在于,所述发光二极管灯条的基材柔性可弯曲;或所述发光二极管灯条的基材不可弯曲。 7. The backlight according to claim 5, characterized in that the LED light bar is flexibly bendable substrate; unbendable the LED light bar or substrate.
8.根据权利要求5所述的背光源,其特征在于,位于所述第一区域的发光二极管的亮度相同,位于所述第二区域的发光二极管的亮度相同,且位于所述第一区域的发光二极管的亮度大于位于所述第二区域的发光二极管的亮度。 8. The backlight of claim 5, wherein the same as in the first light emitting diode luminance region, a light emitting diode located at the same luminance of the second area, and in the first region brightness of the LED is greater than the luminance of the light emitting diode of the second region.
9.一种发光二极管灯条,其特征在于,所述发光二极管灯条包括第一区域和第二区域,所述第一区域中的发光二极管之间的距离大于所述第二区域中的发光二极管之间的距离,其中,所述第一区域位于所述发光二极管灯条的一端或两端。 A light bar, characterized in that the LED light bar comprises a first region and a second region, the distance between the light emitting diode of the first light emitting region is greater than the second region the distance between the diodes, wherein the first region is located one or both ends of the light emitting diode lamp bar.
10.根据权利要求9所述的发光二极管灯条,其特征在于,所述第一区域中的发光二极管之间的距离I满足:l*C0Sa = Itl,其中=Itl表示第二区域中相邻两个发光二极管之间的距离,α表示当第一区域倾斜时,该第一区域所在平面与第二区域所在平面之间的夹角。 10. A light emitting diode bar according to claim 9, characterized in that the distance between the light emitting diode in the first region I satisfies: l * C0Sa = Itl, represents a second region where = Itl adjacent the distance between the two light-emitting diodes, when the [alpha] represents a first inclined region, the region where the angle between the first plane and the plane of the second region is located.
11.根据权利要求9所述的发光二极管灯条,其特征在于,所述发光二极管灯条的基材柔性可弯曲;或所述发光二极管灯条的基材不可弯曲。 11. The light-emitting diode bar according to claim 9, characterized in that the base of the light emitting diode light bar flexibly bendable; unbendable the LED light bar or substrate.
12.根据权利要求11所述的发光二极管灯条,其特征在于,当所述发光二极管灯条的基材不可弯曲时,所述发光二极管灯条的至少一端倾斜设置,该倾斜方向由该发光二极管灯条指向导光板。 12. A light emitting diode bar according to claim 11, wherein, when the LED lamp is not bent strip substrate, the LED light bar is provided at least one end is inclined, the inclined direction of the light-emitting light bar pointing guide plate.
13.根据权利要求12所述的发光二极管灯条,其特征在于,所述发光二极管灯条的两端对称设置。 13. The LED light bar as claimed in claim 12, wherein said light emitting diode light bar ends disposed symmetrically.
14.根据权利要求9所述的发光二极管灯条,其特征在于,位于所述第一区域的发光二极管的亮度相同,位于所述第二区域的发光二极管的亮度相同,且位于所述第一区域的发光二极管的亮度大于位于所述第二区域的发光二极管的亮度。 14. A light emitting diode bar according to claim 9, characterized in that the same brightness light-emitting diode in the first region, the same brightness of the LED located second region, and in the first LED brightness region is greater than the luminance of the light emitting diode of the second region.
15.一种显示装置,其特征在于,所述装置包括权利要求1-8任一权项所述的背光源。 15. A display device, wherein, said means comprising a backlight according to any one of the preceding Claims 1-8 claims.
CN201410782841.2A 2014-12-15 2014-12-15 A backlight LED light bar, the display device CN104460112B (en)

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