WO2013120280A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2013120280A1
WO2013120280A1 PCT/CN2012/071654 CN2012071654W WO2013120280A1 WO 2013120280 A1 WO2013120280 A1 WO 2013120280A1 CN 2012071654 W CN2012071654 W CN 2012071654W WO 2013120280 A1 WO2013120280 A1 WO 2013120280A1
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WO
WIPO (PCT)
Prior art keywords
light bar
connector
led
driving
socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/071654
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English (en)
French (fr)
Inventor
阙成文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Publication of WO2013120280A1 publication Critical patent/WO2013120280A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/7082—Coupling device supported only by cooperation with PCB
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • H01R12/735—Printed circuits including an angle between each other
    • H01R12/737—Printed circuits being substantially perpendicular to each other

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a backlight module and a liquid crystal display device.
  • a backlight module is required to provide a light source, which is distinguished by light entering mode.
  • the group is divided into a direct type and a side light type.
  • the edge-lit backlight module includes a light guide plate and an LED light bar disposed on a side of the light guide plate, and the LED light bar is used as a light source of the backlight module.
  • the LED light source driving connection method is generally used.
  • the LED light bar 4 is mounted on a heat sink 5, and the LED light bar 4 is provided with at least one board end connector 25, and
  • the LED driver board is also provided with a board end connector 25 (shown in FIG. 2), and then connected to the LED strip 4 and the board end on the LED driving board 3 through a wire assembly composed of a wire 29 and a wire end connector 26.
  • the wires 25 are respectively mounted on the two sides of the backboard 1, and the wires are connected to the LED driving board 3 through the rubber 20 into the other side of the backing plate 1, thereby electrically connecting the LED light bar 4 to the LED driving board 3.
  • each of the board end connectors 25 or the line end connectors 26 has only one connection end, and the two board end connectors 25 need to be connected by two line end connectors 26, so A total of 4 connectors are required to complete the electrical connection between the LED strip and the LED driver board, which increases the cost of production.
  • the two line end connectors 26 require wires to be connected, and the presence of the wires makes the design space Occupation, the process becomes complicated during installation, and also leads to an increase in the cost and manufacturing cost of the backlight module.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device which are low in cost and simple in process.
  • a backlight module comprising an LED light bar, a back plate and an LED driving board, further comprising a connector having at least two connecting ends, the LED light bar and the The LED driver board is electrically connected directly through the connector.
  • the connector has two connecting ends, and the backboard is provided with a through hole, the connector is mounted on the through hole of the backboard, and the LED light bar and the LED driving board are respectively They are disposed on both sides of the backboard and are electrically connected to the two connecting ends of the connector.
  • the connector is mounted on the through hole of the backplane so that the connector LED strip and the LED driver board can be placed on both sides of the backplane, saving space and eliminating the need for wires.
  • the two connecting ends are light bar sockets and driving sockets respectively disposed at two ends of the connector, and the LED light bar is provided with a light bar plug matched with the light bar socket, the LED A drive plug mated with the drive socket is disposed at an edge of the drive plate.
  • the plug and the socket it can be plugged and used, which is convenient for the assembly process of the liquid crystal display device, and the matching manner of the plug and the socket is highly reliable.
  • the light bar plug is formed by a PCB board on the LED light bar and a bare conductor on the LED light bar, and the through hole on the back plate corresponds to a position of the light bar plug of the LED light bar.
  • the connector is mounted on the through hole, the light bar socket of the connector is located on a side of the back plate corresponding to the light bar plug, and the light bar plug is connected to the light bar socket .
  • the light bar plug is located at an end of the PCB board of the LED light bar, and the light bar plug of the PCB light strip of the LED light bar is provided with a slit for avoiding the edge of the light bar socket.
  • Light bar The plug is placed at the end of the PCB to facilitate the placement of the connector without causing interference with other components.
  • the driving plug is formed by a PCB board on the LED driving board and a bare conductor on the LED driving board, and the driving socket of the connector is located on the other side of the back board, and the driving of the LED driving board A plug is connected to the drive socket. It does not require additional board ends and line end connectors, saving production costs.
  • the driving plug is located at an end of the PCB board of the LED driving board, and a driving plug of the PCB board of the LED driving board is provided with a slit for avoiding the edge of the driving socket. Convenient for connector settings without causing interference with other components.
  • the connector includes a housing, the light bar socket and the driving socket are respectively disposed on the housing, and the connector further includes a plurality of conductive sheets arranged inside the housing, the guiding Both ends of the through sheet are respectively arranged at the opening of the light bar socket and the driving socket.
  • the conduction is realized by the conduction piece arranged in the inner part of the connector housing, thereby eliminating the use of the wire and the wiring process, and the reliability is high and the processing is convenient.
  • the light bar socket of the connector and the opening of the driving socket are perpendicular to each other
  • the conductive sheet has a notch segment and a straight section, and the notch segment is arranged on the driving socket, Straight segments are arranged on the light bar socket.
  • the two sockets are oriented perpendicular to each other to facilitate the setting of the LED strip and the LED driver board, so that the LED driver board can be placed on the board surface of the back board.
  • a protruding first elastic piece is disposed on the straight section near the opening, and a protruding second elastic piece is also disposed on one side of the notch section on the notch.
  • the other side of the notch segment is bent at the other side to form a protrusion.
  • the protrusion can be pressed with the protruding elastic piece to press the driving plug, thereby improving the reliability of the connection between the driving socket and the driving plug.
  • the straight segment is provided with a protruding hook near the notch segment
  • the connector housing is provided with a bayonet corresponding to the position of the hook, and the hook is embedded in the bayonet .
  • the conductive elastic piece can be firmly fixed inside the connector to ensure the reliability of the connection.
  • a boss for restricting the position of the connector on the through hole is disposed outside the casing of the connector and between the two connecting ends.
  • the position of the connector on the through hole can be limited by the boss.
  • one of the two sides of the boss is provided with a resilient buckle, and the connector is fixed on the through hole of the backboard through the boss and the buckle.
  • the connector is fixed to the through hole of the back plate through the boss and the buckle, so that the connector does not slide up and down, thereby ensuring the stability of the connector.
  • a liquid crystal display device comprising the backlight module described above.
  • the backlight module of the liquid crystal display device directly connects the LED light bar and the LED driving board by using a connector having at least two connecting ends, that is, the two line end connectors are integrated to form a connection with two connecting ends. Without connecting the two terminals through the wire, there is no need to set the board end connector on the LED strip and the LED driver board, and there is no need to pass the wires and the line end connectors disposed at the ends of the wires respectively.
  • the board-end connectors disposed on the LED strips and the LED driver board are connected, thereby reducing the amount of connectors used, reducing the amount of wires used, saving the production cost of the backlight module, and, in addition, due to the LED lights.
  • the electrical connection between the strip and the LED driver board no longer uses the wires, thereby eliminating the wiring process and eliminating the wiring space, optimizing the design of the backlight module.
  • FIG. 1 is a connection diagram of a conventional backlight module LED light bar and an LED driver board.
  • FIG. 2 is a connection structure diagram of a conventional backlight module LED driver board and a line end connector
  • FIG. 4 is a connection diagram of another conventional backlight module LED driver board and a line end connector
  • FIG. 4 is a schematic diagram of the connection structure of the LED backlight strip and the LED end board of the backlight module.
  • FIG. 6 is an exploded view of FIG.
  • Figure 7 is a structural view of a connector of an embodiment of the present invention.
  • a backlight module of the liquid crystal display device of the present invention includes: an LED light bar 4 , a connector 2 , a back plate 1 , an LED driving plate 3 , and heat dissipation
  • the board 5 and the like, and the LED strip 4 is directly connected to the LED driving board 3 through the connector 2.
  • the wire end connector, the board end connector are eliminated, and the connector for integrating the two connection ends is used, which saves the use of the wires and the number of connectors.
  • the connector 2 has two sockets as connection ends, which are respectively a light bar socket 211 and a driving socket 213 .
  • the bottom edge of the back plate 1 is provided with a through hole 11 near the side wall, and the connector 2 Mounted on the through hole 11 of the backboard 1, the LED strip 4 and the LED driving board 3 are respectively disposed on both sides of the backboard 1 and electrically connected to the two connecting ends of the connector 2.
  • the connector is mounted on the through hole of the backplane so that the connector LED strip and the LED driver board can be placed on both sides of the backplane, saving space and eliminating the need for wires.
  • a light bar plug 411 mated with the light bar socket 211 is disposed on the PCB board of the LED light bar 4, and a driving plug 311 mated with the driving socket 213 is also disposed at an edge of the LED driving board 3.
  • the LED light bar 4 can be directly inserted into the light bar socket 211 of the connector 2 through the light bar plug 411 disposed on the PCB board, and can be plug and play, which is convenient for the assembly process of the liquid crystal display device, and has higher reliability. high.
  • the light bar plug 411 is directly processed by the light bar PCB 41 on the LED light bar 4 and the exposed conductor on the LED light bar 4, and the opening point of the through hole 11 on the back plate 1 corresponds to the position where the light bar plug 411 is located.
  • the light bar plug 411 is located at the end of the light bar PCB 41 of the LED light bar 4 to avoid the LED 42 so that the LED 42 forms a uniform light; the light bar plug 411 is directly formed on the light bar PCB 41 and is disposed thereon.
  • the exposed conductor is provided with an opening at its end to avoid the edge of the light bar socket 211.
  • the light bar PCB41 Pass through The light bar PCB41 is improved, and the light bar plug 411 is formed on the light bar PCB 41 by means of a slot opening or the like, and the bare conductor is disposed at the place, thereby eliminating the need for a separate board end and a wire end connector, thereby saving production. Cost; At the same time, the light bar plug 411 is disposed at the end of the light bar PCB 41 to facilitate the setting of the connector without causing interference with other components.
  • the drive plug 311 is also formed by the PCB board on the LED drive board 3 and the exposed conductor thereon, and the drive plug 311 is also located at the end of the PCB board of the LED drive board 3.
  • the light bar socket 211 and the driving socket 213 of the connector 2 are respectively disposed on the housing 21 and are respectively located at two ends of the housing 21, and the inside of the connector is provided with a plurality of conductive sheets 22, and the conduction is performed. Both ends of the sheet 22 are respectively arranged at the opening of the light bar socket 211 and the driving socket 213.
  • the light bar plug 411 and the driving plug 311 are inserted into the light bar socket 211 and the driving socket 213, and the exposed conductor on the plug is in contact with the conductive sheet 22 to realize conduction, thereby eliminating the use of the wire and the wiring process, and the reliability thereof. High, easy to process.
  • the opening of the light bar socket 211 and the driving socket 213 of the connector 2 are perpendicular to each other, and the conductive sheet 22 is oriented according to the opening of the socket, thereby being processed into a shape having a notch section 240 and a straight section 260.
  • the notch segment 240 is arranged on the driving socket 213 to conform to the inner shape of the driving socket 213, and the straight segment 260 is arranged on the light bar socket 211; thus, the LED light bar 4 is facilitated.
  • the arrangement of the LED driving board 3 enables the LED driving board 3 to be laid flat on the board surface of the back board 1, thereby facilitating the placement of the LED driving board 3.
  • a protruding first elastic piece 222 is disposed on the straight section 260 near the opening, and the second elastic piece 223 is also disposed on one side of the notch section 240 at the notch; when the light bar plug 411 or the driving plug After the 311 is inserted into the socket, the exposed conductor on the plug is pressed by the protruding first elastic piece 222 or the second elastic piece 223 to ensure the reliability of the contact.
  • the other side of the notch section 240 is bent to form a protrusion 221, and the protrusion 221 can press the inserted elastic plug 311 with the second elastic piece 223 to improve the connection reliability of the driving socket 213 and the driving plug 311. .
  • a protruding hook 224 is disposed on the straight section 260 near the recess, and a position of the hook 21 corresponding to the hook 224 is provided on the housing 21 of the connector 2, and the hook 224 is embedded in the card. In port 212.
  • the conductive sheet 22 can be firmly fixed inside the casing 21 of the connector 2 to ensure the connection. Reliability.
  • a boss 215 for limiting the position of the connector on the through hole is disposed outside the housing 21 of the connector 2, and a resilient buckle 214 is disposed on one side of the boss 215.
  • the connector 2 is fixed to the through hole 11 of the backboard 1 through the boss 215 and the buckle 214, so that the connector 2 does not slide up and down, thereby ensuring the stability of the connector.
  • the two connecting ends of the connector 2 are respectively the light bar socket 211 and the driving socket 213 disposed on the housing 21; and the connection end form of the connector is not limited to the form of the socket, It can be in the form of a plug, and correspondingly, the LED strip and the LED driver board are provided with corresponding connectors having sockets, but this method increases the number of connectors used and increases the cost.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

背光模组及液晶显示装置
【技术领域】
本发明涉及液晶显示领域， 更具体的说， 涉及一种背光模组及液晶显示装 置。
【背景技术】
近年来由于液晶显示器具有体积小， 轻薄， 低耗能的优点得到了很大的发 展， 由于 LCD设备是被动式电子显示设备， 需要一个背光模组来提供光源， 以 入光方式进行区分， 背光模组又分为直下式和侧光式。 侧光式背光模组包括导 光板和设置与该导光板侧面的 LED灯条， 以 LED灯条作为背光模组的光源。
如图 1及图 2所示为目前比较常用的 LED光源驱动连接方式为 LED灯条 4装配在导热板 5 ( Heat sink )上， LED灯条 4上设置有至少一个板端连接器 25, 同时 LED驱动板上亦设置有一板端连接器 25 (如图 2所示 ), 然后通过由导线 29及线端连接器 26构成的线材组件与 LED灯条 4及 LED驱动板 3上的板端连 接器 25分别装配在背板 1的两侧， 导线通过胶体 20 ( rubber )进入背板 1的另 一侧与 LED驱动板 3连接， 从而将 LED灯条 4电性连接在 LED驱动板 3上。 如图中可以看出， 每个所述板端连接器 25或线端连接器 26仅具有一个连接端， 两个板端连接器 25之间需要通过两个线端连接器 26实现连接，因此总共需要 4 个连接器才能完成 LED灯条与 LED驱动板之间的电气连接，增加了生产的成本， 同时， 两个线端连接器 26需要导线进行连接， 而导线的存在使得其设计空间被 占用， 在安装时工艺变得复杂， 也导致了背光模组材料成本和制造成本的增加。
如图 3及图 4所示， 在产品朝向薄型化的趋势发展下， 也有采用柔性扁平 排线 28 ( FFC ) 来取代原有的线材组件， 其安装工艺依然较为复杂， 其较于线 材组件来说， 优势在于可以取消线端连接器， 以降低产品成本， 且 FFC体积较 小， 从而可以节省产品设计空间， 但因为 FFC及其配套的板端连接器的耐电压 都比较低， 所以在高电压驱动时， 此方案变得不适用， 并且 FFC的材料费用也 使得背光模组的生产成本的增加。 【发明内容】
本发明所要解决的技术问题是提供一种成本低廉、 工艺筒单的背光模组及 液晶显示装置。
本发明的目的是通过以下技术方案来实现的： 一种背光模组， 包括 LED灯 条、 背板以及 LED驱动板， 还包括具有至少两个连接端的连接器， 所述 LED灯 条与所述 LED驱动板直接通过所述连接器进行电气连接。
优选的， 所述连接器具有两个连接端， 所述背板上设置有通孔， 所述连接 器安装在所述背板的通孔上，所述 LED灯条与所述 LED驱动板分别设置在所述 背板的两侧并与所述连接器的两个连接端进行电气连接。 连接器安装在背板的 通孔上，使得连接器 LED灯条和 LED驱动板可以分别设置在背板的两侧，节省 了空间同时还免去导线的需求。
优选的， 所述两个连接端为分别设置在所述连接器两端的灯条插口和驱动 插口，所述 LED灯条的上设置有与所述灯条插口配合的灯条插头，所述 LED驱 动板的边缘处设置有与所述驱动插口配合的驱动插头。 通过插头及插口的配合 方式， 可以即插即用， 方便于液晶显示装置的组装过程， 并且插头及插口的配 合方式可靠性较高。
优选的，所述灯条插头由所述 LED灯条上的 PCB板及其上的棵露导体形成， 所述背板上的通孔对应于所述 LED灯条的灯条插头所处的位置， 所述连接器安 装在所述通孔上， 所述连接器的灯条插口位于所述背板上对应于所述灯条插头 的一侧，所述灯条插头与所述灯条插口连接。通过对 LED灯条上的 PCB板进行 改进， 通过切槽等方式在 PCB板上形成灯条插头， 并在插头处设置棵露导体， 从而不需要在另设板端及线端连接器， 节约了生产成本。
优选的， 所述灯条插头位于所述 LED灯条的 PCB板的端部处， 所述 LED 灯条的 PCB板的灯条插头处设置有用于避开所述灯条插口边缘的切口。 将灯条 插头设置在 PCB板的端部处， 方便连接器的设置， 同时不会造成与其他组件的 干扰。
优选的，所述驱动插头由所述 LED驱动板上的 PCB板及其上的棵露导体形 成， 所述连接器的驱动插口位于所述背板的另一侧， 所述 LED驱动板的驱动插 头与所述驱动插口连接。 不需要在另设板端及线端连接器， 节约了生产成本。
优选的，所述驱动插头位于所述 LED驱动板的 PCB板的端部处，所述 LED 驱动板的 PCB板的驱动插头处设置有用于避开所述驱动插口边缘的切口。 方便 连接器的设置， 同时不会造成与其他组件的干扰。
优选的， 所述连接器包括壳体， 所述灯条插口以及驱动插口分别设置在壳 体上， 所述连接器还包括多片排设在所述壳体内部的导通片， 所述导通片的两 端分别排设在所述灯条插口以及驱动插口的开口处。 利用排设在连接器壳体内 部的导通片实现导通， 免去了导线的使用及布线工艺， 其可靠性高， 便于加工。
优选的， 所述连接器的灯条插口与驱动插口的开口朝向相互垂直， 所述导 通片具有一凹口段及一直段， 所述凹口段排设在所述驱动插口上， 所述直段排 设在所述灯条插口上。 两个插口朝向相互垂直，便于 LED灯条及 LED驱动板的 设置， 使 LED驱动板能够平铺设置在背板的板面上。
优选的， 所述直段上靠近开口处设置有凸出的第一弹片， 所述凹口段上位 于凹口的一侧边也设置有凸出的第二弹片。 当灯条插头或驱动插头插入插口后， 插头上的棵露导体被凸出的弹片压紧， 保证了接触的可靠性。
优选的， 所述凹口段上位于凹口的另一侧边弯折形成凸起。 凸起可以配合 凸出弹片将驱动插头压紧， 提高驱动插口与驱动插头的连接可靠性。
优选的， 所述直段上靠近凹口段处设置有凸出的卡勾， 所述连接器壳体上 对应于所述卡勾的位置设置有卡口， 所述卡勾嵌入所述卡口内。 通过卡勾与卡 口的配合， 可以使导电弹片牢靠的固定在连接器内部， 保证连接的可靠性。
优选的， 所述连接器的壳体外部、 两个连接端之间设置有用于限制连接器 在通孔上的位置的凸台。 通过凸台可以限制连接器在通孔上的位置。 优选的， 所述凸台两侧中任一侧设置有具有弹性的卡扣， 所述连接器通过 所述凸台以及所述卡扣固定在所述背板的通孔上。 通过凸台以及卡扣将连接器 固定在背板的通孔上， 使连接器不会上下滑动， 保证了连接器的稳定性。
一种液晶显示装置， 包括上所述的背光模组。
本发明由于液晶显示装置的背光模组使用具有至少两个连接端的连接器直 接将 LED灯条与 LED驱动板进行连接，也就是将两个线端连接器整合在一起形 成具有两个连接端的连接器， 而不需要通过导线将两个连接端连接， 也不需要 在 LED灯条及 LED驱动板上设置板端连接器，同时也不需要通过导线以及设置 在导线两端的线端连接器将分别设置在 LED灯条以及 LED驱动板上的板端连接 器连接起来， 这样， 减少了连接器的使用量， 同时减少了导线的使用量， 节约 了背光模组的生产成本， 另外， 由于 LED灯条与 LED驱动板的电气连接方式不 再使用导线， 从而可以省去布线工艺， 以及省去了布线空间， 优化了背光模组 的设计。
【附图说明】
图 1是现有一种背光模组 LED灯条与 LED驱动板的连接结构筒图， 图 2是现有一种背光模组 LED驱动板与线端连接器的连接结构筒图， 图 3是现有另一种背光模组 LED灯条与 LED驱动板的连接结构筒图， 图 4是现有另一种背光模组 LED驱动板与线端连接器的连接结构筒图， 图 5是本发明实施例的背光模组 LED灯条与 LED驱动板的连接结构筒图， 图 6是图 5的分解图，
图 7是本发明实施例中的连接器的结构筒图。
其中： 1、 背板， 2、 连接器， 3、 LED驱动板， 4、 LED灯条， 5、 散热板， 11、 通孔， 20、 胶体， 21、 壳体， 22、 导通片， 25、 板端连接器， 26、 线端连 接器， 28、 FFC, 29、 导线， 41、 灯条 PCB, 42、 LED, 211、 灯条插口， 212、 卡口， 213、 驱动插口， 214、 卡扣， 215、 凸台， 221、 凸起， 222、 第一弹片， 223、 第二弹片， 224、 卡勾， 240、 凹口段， 260、 直段， 311、 驱动插头， 411、 灯条插头。
【具体实施方式】
下面结合附图和较佳的实施例对本发明作进一步说明。
如图 5及图 6所示为本发明的较佳实施例， 本发明所述的液晶显示装置的 背光模组包括： LED灯条 4、 连接器 2、 背板 1、 LED驱动板 3以及散热板 5等 组件， 而 LED灯条 4直接通过连接器 2连接到 LED驱动板 3上。 在本发明中， 取消了线端连接器、 板端连接器， 进而使用将两个连接端集成一体的连接器， 节约了导线的使用以及连接器的数量。
如图 5及图 6所示， 连接器 2具有两个插口作为连接端， 分别为灯条插口 211和驱动插口 213 , 背板 1的底板边缘靠近侧壁处设置有通孔 11 , 连接器 2安 装在所述背板 1的通孔 11上， LED灯条 4与 LED驱动板 3分别设置在背板 1 的两侧并与所述连接器 2 的两个连接端进行电气连接。 连接器安装在背板的通 孔上，使得连接器 LED灯条和 LED驱动板可以分别设置在背板的两侧，节省了 空间同时还免去导线的需求。
LED灯条 4的 PCB板上设置有与所述灯条插口 211配合的灯条插头 411 , 而 LED驱动板 3的边缘处也设置有与所述驱动插口 213配合的驱动插头 311。 这样， LED灯条 4可以直接通过设置在 PCB板上的灯条插头 411直接插入连接 器 2上的灯条插口 211 , 可以即插即用， 方便于液晶显示装置的组装过程， 并且 可靠性较高。
灯条插头 411由 LED灯条 4上的灯条 PCB41及其上的棵露导体直接加工而 成， 背板 1上的通孔 11的开设点对应于所述灯条插头 411所处的位置， 灯条插 头 411位于 LED灯条 4的灯条 PCB41的端部处， 以避开 LED42, 让 LED42形 成均勾的光线； 灯条插头 411直接在灯条 PCB41板上加工形成， 并在其上设置 棵露导体， 同时在其端部处设置一开口以避开灯条插口 211 的边缘。 这样通过 对灯条 PCB41进行改进， 通过切槽开口等方式在灯条 PCB41 上形成灯条插头 411 , 并在该处设置棵露导体， 从而不需要再另设板端及线端连接器， 节约了生 产成本； 同时， 将灯条插头 411设置在灯条 PCB41的端部处， 方便连接器的设 置， 同时不会造成与其他组件的干扰。
同样的，驱动插头 311也是由 LED驱动板 3上的 PCB板及其上的棵露导体 形成， 驱动插头 311也是位于所述 LED驱动板 3的 PCB板的端部处。
连接器 2的灯条插口 211以及驱动插口 213分别设置在起壳体 21上， 并且 分别处于壳体 21 的两端， 该连接器的内部排设有多片导通片 22, 所述导通片 22的两端分别排设在所述灯条插口 211以及驱动插口 213的开口处。 灯条插头 411以及驱动插头 311插入所述灯条插口 211以及驱动插口 213内，插头上的棵 露导体与导通片 22接触实现导通，免去了导线的使用及布线工艺，其可靠性高， 便于加工。
如图 7所示， 连接器 2的灯条插口 211与驱动插口 213的开口朝向相互垂 直， 而导通片 22根据插口的开口朝向， 从而加工成具有一凹口段 240及一直段 260的形状，所述凹口段 240排设在所述驱动插口 213上与该驱动插口 213的内 部形状相适应， 而直段 260排设在所述灯条插口 211上； 这样， 便于 LED灯条 4及 LED驱动板 3的设置， 使 LED驱动板 3能够平铺设置在背板 1的板面上， 从而方便 LED驱动板 3的放置。 直段 260上靠近开口处设置有凸出的第一弹片 222, 所述凹口段 240上位于凹口的一侧边也设置有凸出的第二弹片 223; 当灯 条插头 411或驱动插头 311插入插口后， 插头上的棵露导体被凸出的第一弹片 222或第二弹片 223压紧， 保证了接触的可靠性。 凹口段 240上位于凹口的另一 侧边弯折形成凸起 221 , 凸起 221可以配合第二弹片 223将插入的驱动插头 311 压紧， 提高驱动插口 213与驱动插头 311的连接可靠性。 在直段 260上靠近凹 口处设置有凸出的卡勾 224, 连接器 2的壳体 21上对应于所述卡勾 224的位置 设置有卡口 212, 所述卡勾 224嵌入所述卡口 212内。 通过卡勾 224与卡口 212 的配合， 可以使导通片 22牢靠的固定在连接器 2的壳体 21 内部， 保证连接的 可靠性。
另外， 连接器 2的壳体 21外部、 两个连接端之间设置有用于限制连接器在 通孔上的位置的凸台 215, 位于凸台 215的一侧设置有具有弹性的卡扣 214, 连 接器 2通过所述凸台 215以及所述卡扣 214固定在所述背板 1的通孔 11上， 使 连接器 2不会上下滑动， 保证了连接器的稳定性。
当然， 本发明的实施例中， 连接器 2的两个连接端分别为设置在壳体 21上 的灯条插口 211以及驱动插口 213;而连接器的连接端形式并不限于插口的形式， 也可以是插头的形式， 相应的， LED灯条及 LED驱动板上设置相应的具有插口 的连接器， 但是这种方式会增加连接器的使用数量， 增加成本。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明， 不 能认定本发明的具体实施只局限于这些说明。 对于本发明所属技术领域的普通 技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或替 换， 都应当视为属于本发明的保护范围。

Claims

权利要求
1、 一种背光模组， 包括： LED灯条、 背板、 LED驱动板、 以及具有至少两 个连接端的连接器，所述 LED灯条与所述 LED驱动板直接通过所述连接器进行 电气连接。
2、 如权利要求 1所述的一种背光模组， 其特征在于， 所述连接器具有两个 连接端， 所述背板上设置有通孔， 所述连接器安装在所述背板的通孔上， 所述 LED灯条与所述 LED驱动板分别设置在所述背板的两侧并与所述连接器的两个 连接端进行电气连接。
3、 如权利要求 2所述的一种背光模组， 其特征在于， 所述两个连接端为分 别设置在所述连接器两端的灯条插口和驱动插口， 所述 LED灯条的上设置有与 所述灯条插口配合的灯条插头， 所述 LED驱动板的边缘处设置有与所述驱动插 口配合的驱动插头。
4、 如权利要求 3所述的一种背光模组， 其特征在于， 所述灯条插头由所述 LED 灯条上的 PCB 板及其上的棵露导体形成， 所述背板上的通孔对应于所述 LED灯条的灯条插头所处的位置， 所述连接器安装在所述通孔上， 所述连接器 的灯条插口位于所述背板上对应于所述灯条插头的一侧， 所述灯条插头与所述 灯条插口连接。
5、 如权利要求 4所述的一种背光模组， 其特征在于， 所述灯条插头位于所 述 LED灯条的 PCB板的端部处，所述 LED灯条的 PCB板的灯条插头处设置有 用于避开所述灯条插口边缘的切口。
6、 如权利要求 4所述的一种背光模组， 其特征在于， 所述驱动插头由所述 LED驱动板上的 PCB板及其上的棵露导体形成， 所述连接器的驱动插口位于所 述背板的另一侧， 所述 LED驱动板的驱动插头与所述驱动插口连接。
7、 如权利要求 6所述的一种背光模组， 其特征在于， 所述驱动插头位于所 述 LED驱动板的 PCB板的端部处，所述 LED驱动板的 PCB板的驱动插头处设 置有用于避开所述驱动插口边缘的切口。
8、如权利要求 3所述的一种背光模组， 其特征在于， 所述连接器包括壳体， 所述灯条插口以及驱动插口分别设置在壳体上， 所述连接器还包括多片排设在 所述壳体内部的导通片， 所述导通片的两端分别排设在所述灯条插口以及驱动 插口的开口处。
9、 如权利要求 8所述的一种背光模组， 其特征在于， 所述连接器的灯条插 口与驱动插口的开口朝向相互垂直， 所述导通片具有一凹口段及一直段， 所述 凹口段排设在所述驱动插口上， 所述直段排设在所述灯条插口上。
10、 如权利要求 9所述的一种背光模组， 其特征在于， 所述直段上靠近开 口处设置有凸出的第一弹片， 所述凹口段上位于凹口的一侧边也设置有凸出的 第二弹片。
11、 如权利要求 10所述的一种背光模组， 其特征在于， 所述凹口段上位于 凹口的另一侧边弯折形成凸起。
12、 如权利要求 9所述的一种背光模组， 其特征在于， 所述直段上靠近凹 口处设置有凸出的卡勾， 所述连接器壳体上对应于所述卡勾的位置设置有卡口， 所述卡勾嵌入所述卡口内。
13、 如权利要求 2所述的一种背光模组， 其特征在于， 所述连接器的壳体 外部、 两个连接端之间设置有用于限制连接器在通孔上的位置的凸台。
14、 如权利要求 13所述的一种背光模组， 其特征在于， 所述凸台两侧中任 一侧设置有具有弹性的卡扣， 所述连接器通过所述凸台以及所述卡扣固定在所 述背板的通孔上。
15、 一种液晶显示装置， 包括背光模组， 所述背光模组包括 LED灯条、 背 板、 LED驱动板以及具有至少两个连接端的连接器， 所述 LED灯条与所述 LED 驱动板直接通过所述连接器进行电气连接。
16、 如权利要求 15所述的一种液晶显示装置， 其特征在于， 所述连接器具 有两个连接端， 所述背板上设置有通孔， 所述连接器安装在所述背板的通孔上， 所述 LED灯条与所述 LED驱动板分别设置在所述背板的两侧并与所述连接器的 两个连接端进行电气连接。
17、 如权利要求 16所述的一种液晶显示装置， 其特征在于， 所述两个连接 端为分别设置在所述连接器两端的灯条插口和驱动插口， 所述 LED灯条的上设 置有与所述灯条插口配合的灯条插头， 所述 LED驱动板的边缘处设置有与所述 驱动插口配合的驱动插头。
18、 如权利要求 17所述的一种液晶显示装置， 其特征在于， 所述灯条插头 由所述 LED灯条上的 PCB板及其上的棵露导体形成，所述背板上的通孔对应于 所述 LED灯条的灯条插头所处的位置， 所述连接器安装在所述通孔上， 所述连 接器的灯条插口位于所述背板上对应于所述灯条插头的一侧， 所述灯条插头与 所述灯条插口连接。
19、 如权利要求 18所述的一种液晶显示装置， 其特征在于， 所述灯条插头 位于所述 LED灯条的 PCB板的端部处，所述 LED灯条的 PCB板的灯条插头处 设置有用于避开所述灯条插口边缘的切口。
20、 如权利要求 18所述的一种液晶显示装置， 其特征在于， 所述驱动插头 由所述 LED驱动板上的 PCB板及其上的棵露导体形成，所述连接器的驱动插口 位于所述背板的另一侧， 所述 LED驱动板的驱动插头与所述驱动插口连接。
PCT/CN2012/071654 2012-02-16 2012-02-27 背光模组及液晶显示装置 Ceased WO2013120280A1 (zh)

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