KR20060116977A - Connector, liquid crystal display having the same, and method of engaging the same - Google Patents

Abstract

A connector, an LCD(Liquid Crystal Display) having the connector, and a method of connecting the connector with a PCB(Printed Circuit Board) are provided to prevent the connector from being detached from the PCB by improving the supporting force of the connector. A connector includes at least two support members(118) respectively coming into contact with top and bottom faces of a PCB to endure pressure applied to the top and bottom faces(112a,112c) of the connector. The support members include a first support member and a second support member. The first support member is extended from the top face of the connector to the PCB in a bent form and comes into contact with the top face of the PCB. The second support member is horizontally extended from the bottom face of the connector to the PCB and comes into contact with the bottom face of the PCB. The connector further includes sides(112b) formed between the top face and the bottom face and forms a space(114) in which at least one of a connecting pin and a connecting hole is formed.

Description

Connector, Liquid Crystal Display Having The Same And Method Of Engaging The Same {Connector, Liquid Crystal Display Having The Same, And Method Of Engaging The Same}

1 is a perspective view showing a connector fastened with a conventional printed circuit board.

FIG. 2 is a cross-sectional view illustrating a connector in which a lifting phenomenon is generated from the printed circuit board shown in FIG. 1.

3 is a perspective view illustrating a connector for a liquid crystal display according to a first embodiment of the present invention.

4A and 4B are perspective views respectively showing front and rear surfaces of the connector shown in FIG. 3 fastened to a printed circuit board.

FIG. 5 is a cross-sectional view illustrating a process of supporting the connector shown in FIG. 3 on a printed circuit board when a force is applied from the upper and lower sides.

6 is a cross-sectional view illustrating a connector for a liquid crystal display according to a second exemplary embodiment of the present invention.

FIG. 7 is a perspective view illustrating a fastening process of the connector shown in FIGS. 3 and 6 and a connector of a cable type.

FIG. 8 is a diagram illustrating a first embodiment of a liquid crystal display device having the connector illustrated in FIGS. 3 and 6.

FIG. 9 is a diagram illustrating a second embodiment of a liquid crystal display device having the connector illustrated in FIGS. 3 and 6.

<Description of main parts of drawing>

2,102: printed circuit board 10,110: connector

12,112: body 14,114: connection space

16,116: fixed terminal 118: support

150: liquid crystal display panel 152: thin film transistor substrate

154 color filter substrate 156 data drive IC

158: data TCP 160: data PCB

162: external system 166: gate drive IC

168: gate TCP 170: gate PCB

172: flexible circuit board

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector and a liquid crystal display device having the same, and more particularly, to a connector capable of preventing a fastening failure with a printed circuit board, and a liquid crystal display device and a fastening method having the same.

The liquid crystal display displays an image by adjusting the light transmittance of the liquid crystal having dielectric anisotropy using an electric field. To this end, the liquid crystal display includes a liquid crystal display panel in which liquid crystal cells are arranged in a matrix, and a driving circuit for driving the liquid crystal display panel.

In the liquid crystal display panel, the liquid crystal cells display an image by adjusting the light transmittance according to the pixel signal.

The driving circuit includes a gate driver for driving the gate lines of the liquid crystal display panel, a data driver for driving the data lines, a timing controller for controlling the driving timing of the gate driver and the data driver, the liquid crystal display panel and the driving. And a power supply unit supplying power signals necessary for driving the circuits.

The driving circuit is mounted on a printed circuit board and connected to an external system and a connector to generate a power signal, a data signal, a clock signal, and the like.

The connector includes a first connector fastened to the printed circuit board, and a second connector fastened to the first connector to supply various drive signals from an external system to the first connector. Here, as shown in FIG. 1, the first connector 10 includes a body 12, a plurality of connection grooves 14 formed in the body 12, and fixed terminals fixed to the printed circuit board 2 ( 16). The fixed terminal 16 is fastened to the printed circuit board 2 by a soldering method or the like.

The first and second connectors are repeatedly fastened and dismantled during the aging inspection process of detecting a defect by driving the liquid crystal display in a high temperature and high humidity environment. At this time, as shown in FIG. 2, the first connector 10 is pulled out of the printed circuit board 2 and the lifting of the first connector 10 occurs due to an excessive force of an operator required for fastening and dismantling. There is a problem. That is, the pressure applied from the upper side of the first connector 10 can withstand using the printed circuit board 2 connected to the fixed terminal 16, but as shown in FIG. 2, the lower side of the first connector 10. There is no structure to support the pressure applied at. As a result, when a force is applied from the lower side of the first connector 10, the first connector 10 is separated from the printed circuit board 2 to generate a lifting phenomenon.

Accordingly, it is an object of the present invention to provide a connector which can prevent a fastening with a printed circuit board, a liquid crystal display device and a fastening method having the same.

In order to achieve the above object, the connector is coupled to the printed board according to the invention at least two support members in contact with each of the upper and lower surfaces of the printed board to withstand the pressure applied from each of the upper and lower surfaces of the connector Characterized in having a.

The support member may include a first support member extending from the upper surface to be bent toward the printing board and contacting the upper surface of the printing board; And a second supporting member extending horizontally from the lower surface toward the printing board and in contact with the lower surface of the printing board.

The connector may further include a side surface formed between the upper surface and the lower surface and providing a connection space in which at least one of the connection pin and the connection groove is to be formed.

In order to achieve the above object, the liquid crystal display device according to the present invention comprises a liquid crystal display panel for implementing an image; A printing board mounted with a plurality of driving devices for generating driving signals for driving the liquid crystal display panel; And a connector including at least two support members engaged with the printed board and in contact with each of the upper and lower surfaces of the printed board to withstand the pressure applied from each of the upper and lower surfaces of the connector. .

The printed board may be a printed circuit board having a timing controller for supplying a control signal to a driving integrated circuit for driving the liquid crystal display panel and a power supply unit for supplying a power signal.

In order to achieve the above object, the fastening method of the connector according to the present invention comprises the steps of providing a connector comprising a body, a support extending from the upper / lower surface of the body; And fastening the connector to the printed board so that the support of the connector contacts the upper / lower surface of the printed board to withstand the pressure applied from the upper / lower surface of the connector.

Other objects and advantages of the present invention in addition to the above object will become apparent from the description of the preferred embodiment of the present invention with reference to the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described with reference to FIGS. 3 to 9.

3 is a perspective view showing a connector according to a first embodiment of the present invention.

Referring to FIG. 3, the connector 110 according to the first embodiment of the present invention includes a body 112, a fixed terminal 116 fixed to a printed circuit board, and a lower surface 112c of the body 112. And an elongated support 118.

The body 112 is positioned between the upper surface 112a, the lower surface 112c opposite the upper surface 112a, and the upper surface 112a and the lower surface 112c to form a connection groove or a connection pin. The side surface 112b which provides the connection space 114 to be included is included. In the case of a connector having a connection groove, a connection terminal electrically connected to the connection pin is formed on the upper surface 112a, the lower surface 112c, and the side surface 112b defined by the connection groove forming space 114.

The fixed terminal 116 is formed to protrude from the end of the upper surface 112a in a "U" or "L" shape. The fixed terminal 116 is fastened to the printed circuit board 102 by a method such as soldering as shown in FIGS. 4A and 4B. The fixed terminal 116 serves to support the force applied from the upper side of the connector 110.

The support 118 extends from the bottom surface 112c of the body 112 to contact the bottom surface of the printed circuit board 102. The support 118 serves to support the force applied from the lower side of the connector 110 in contact with the bottom surface of the printed circuit board 102.

As described above, the connector according to the first exemplary embodiment of the present invention supports the force applied from the upper side of the connector 110 to the printed circuit board 102 by using the fixed terminal 116 as shown in FIG. 5. In addition, the force applied from the lower side of the connector 110 is supported on the printed circuit board 102 by using the support part 118. Accordingly, even if a force is applied from either the upper or lower side of the connector 110, the holding force of the connector 110 is increased, such as the lifting of the connector 110 generated by the connector 110 being separated from the printed circuit board 102. Defects can be prevented.

6 is a cross-sectional view showing a connector according to a second embodiment of the present invention.

The connector according to the second embodiment of the present invention shown in FIG. 6 has the same components except for further comprising a guide member as compared to the connector shown in FIG. 3. Accordingly, detailed description of the same components will be omitted.

The guide member 120 is formed on the bottom surface 112c or the support 118 of the body outward of the side 112b of the body. The guide member 120 may be integrally formed with the body 112 or may be separately formed. The guide member 120 serves to guide the fastening position of the connector 110 when fastening the connector 110 to the printed circuit board 102.

As described above, the connector according to the second exemplary embodiment of the present invention may be fastened in the printed circuit board 102 by using the guide member 120 to shorten the fastening process time and to accurately position the printed circuit board 102. Can be fastened to In addition, the connector 110 according to the second embodiment of the present invention supports the force applied from the upper and lower sides of the connector 110 to the printed circuit board 102 by using the fixed terminal 116 and the support 118. do. Accordingly, even if a force is applied from either the upper or lower side of the connector 110, the holding force of the connector 110 is increased, such as the lifting of the connector 110 generated by the connector 110 being separated from the printed circuit board 102. Defects can be prevented.

7 is a perspective view for explaining a fastening process of the connector and the connector of the cable type according to the present invention.

Referring to FIG. 7, the connector 110 illustrated in FIGS. 3 and 6 is fastened to the printed circuit board 118 by soldering or the like, and a connection groove is formed in the connection space 114. The connector 130 having a cable form connected to the connector 110 includes a second body 132, a plurality of connection pins 134 formed in the second body 132, and an external system (not shown). And a connection cable 136 for transmitting a drive signal such as a power signal, a data signal, a clock signal, and the like.

The connectors 110 and 130 are fastened by inserting the connection pins 134 of the connector 130 in the form of a cable into the connection groove 114 of the connector 110 according to the present invention. Accordingly, a drive signal such as a power signal, a data signal, a clock signal, or the like from the external system is connected to the connector 130 having a cable form having a connection cable 136 connected to the external system, and the connector shown in FIGS. 3 and 6. It is supplied to the drive circuit mounted on the printed circuit board 102 through the 110.

8 is a diagram illustrating a liquid crystal display according to the present invention having the connector shown in FIGS. 3 and 6.

Referring to FIG. 8, a liquid crystal display according to the present invention includes a liquid crystal display panel 150 having a liquid crystal cell matrix, and a gate drive integrated circuit for driving gate lines GL of the liquid crystal display panel 150. Circuit (hereinafter referred to as “IC”) 166 and a data drive IC 156 for driving the data lines DL of the liquid crystal display panel 150.

The liquid crystal display panel 150 is formed by bonding the thin film transistor substrate 152 and the color filter substrate 154 with the liquid crystal interposed therebetween. The liquid crystal display panel 150 includes liquid crystal cells Clc independently driven by the thin film transistor TFT in regions defined by intersections of the gate lines GL and the data lines DL. The thin film transistor TFT supplies a pixel signal from the data line DL to the liquid crystal cell Clc in response to a scan signal from the gate line GL.

The data drive ICs 156 are connected to the data lines DL via a data tape carrier package (hereinafter referred to as "TCP") 158 and a data pad of the liquid crystal display panel 150. The data drive ICs 156 convert the pixel data into an analog pixel signal and supply the converted pixel data to the data lines DL. To this end, the data drive ICs 156 receive data control signals, pixel data, and power signals from a timing controller and a power supply unit on the data printed circuit board (PCB) 116. . Here, the timing controller and the power supply unit generate data control signals, pixel data, and power signals using driving signals such as power signals, data signals, and clock signals from external systems supplied through the connectors 110 and 130.

The gate drive ICs 166 are connected to the gate lines GL via the gate TCP 168 and the gate pad of the liquid crystal display panel 150. The gate drive ICs 166 sequentially supply a scan signal of the gate high voltage VGH to the gate lines GL. In addition, the gate drive ICs 166 supply the gate low voltage VGL to the gate lines GL in a period other than the period in which the gate high voltage VGH is supplied.

To this end, the gate drive ICs 166 receive gate control signals and power signals from a timing controller and a power supply unit on the data PCB 116 through the flexible circuit board 172 connected to the data PCB 116. Here, the timing controller and the power supply unit generate gate control signals and power signals using various driving signals from external systems supplied through the connectors 110 and 130.

Meanwhile, the connector according to the present invention may be applied not only to the liquid crystal display of FIG. 8 but also to the liquid crystal display of various structures such as a structure in which the gate PCB is removed as shown in FIG.

In addition, the connector according to the present invention can be applied not only to a liquid crystal display device but also to a display device such as a plasma display panel, a field emission device, an electroluminescent device, and the like.

As described above, the connector according to the present invention and the liquid crystal display and the fastening method having the same support the force applied from the upper side of the connector to the printed circuit board by using the fixed terminal, and support the force applied from the lower side of the connector. Is supported on the printed circuit board. Accordingly, the connector according to the present invention and the liquid crystal display device and the fastening method having the same according to the present invention have a strong support force of the connector even when a force is applied from either the top or the bottom of the connector, such that the connector is separated from the printed circuit board. Defects can be prevented.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (8)

In the connector fastened to the printed board, And at least two support members in contact with each of the upper and lower surfaces of the printed board to withstand the pressure applied from each of the upper and lower surfaces of the connector. The method of claim 1, The support member A first support member bent from the upper surface toward the printing board and contacting the upper surface of the printing board; And a second support member extending horizontally from the lower surface toward the printing board and in contact with the lower surface of the printing board. The method of claim 1, The connector And a side surface formed between the upper surface and the lower surface and providing a connection space in which at least one of a connection groove and a connection pin is formed. A liquid crystal display panel which implements an image; A printing board mounted with a plurality of driving devices for generating driving signals for driving the liquid crystal display panel; And a connector including at least two support members engaged with the printed board and in contact with each of the upper and lower surfaces of the printed board to withstand the pressure applied from each of the upper and lower surfaces of the connector. Liquid crystal display. The method of claim 4, wherein The support member A first support member bent from the upper surface toward the printing board and contacting the upper surface of the printing board; And a second support member extending horizontally from the lower surface toward the printing board and in contact with the lower surface of the printing board. The method of claim 4, wherein The connector And a side surface formed between the upper surface and the lower surface and providing a connection space in which at least one of a connection pin and a connection groove is formed. The method of claim 4, wherein The printed board is And a printed circuit board having a timing controller for supplying a control signal to a driving integrated circuit for driving the liquid crystal display panel and a power supply unit for supplying a power signal. Providing a connector comprising a body, a support extending from an upper / lower surface of the body; And fastening the connector to the printed board so that the support portion of the connector contacts the upper / lower surface of the printed board to withstand the pressure applied from the upper / lower surface of the connector. .

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