KR101289939B1 - Connector of line film and test apparatus of liquid crystal display using the same - Google Patents

Abstract

The present invention discloses a connector for a wiring film and an inspection apparatus for a liquid crystal display device using the same, which can improve the connection between the liquid crystal panel and the driving circuit and reduce the cost. The connector for a wiring film according to an embodiment of the present invention is provided at an end of the FPC to fix the FPC and is mounted on the pad portion of the PCB, and is disposed on the fixing member to freeze the pad portion and the fixing member of the PCB. It comprises a guide member to be drawn.

Pogo Block, Cost, Connector, Inspection Device

Description

CONNECTOR OF LINE FILM AND TEST APPARATUS OF LIQUID CRYSTAL DISPLAY USING THE SAME}

1 is a perspective view of an inspection apparatus of a liquid crystal display according to an embodiment of the present invention.

FIG. 2 is a detailed view of a pogo block showing region A of FIG. 1. FIG.

3 is an exploded perspective view of a pogo block showing region A of FIG.

4 is a cross-sectional view showing the fastening of the pogo block cut along the line II 'of FIG.

Description of the Related Art

100: liquid crystal panel 110: panel table

130: PCB 131: base substrate

131: first pad 140: substrate table

150: FPC 160: support

180: pogo block 181: support member

182: second projection 183: guide member

185: fixing member 188: first projection

189: third projection 190: the first bolt

191: 2nd bolt 193: 1st bolt hole

194: Second Bolt Hole 195: Third Bolt Hole

196: fourth bolt hole

The present invention relates to a connector for a wiring film, and more particularly, to a connector for a wiring film and an inspection apparatus for a liquid crystal display device using the same, which can improve the connectivity between the liquid crystal panel and the driving circuit and reduce the cost. .

Typically, a liquid crystal display device displays an image by adjusting light transmittance of liquid crystal cells according to a video signal. An active matrix type liquid crystal display device in which switching elements are formed for each liquid crystal cell is suitable for displaying moving images. As a switching element used in the active matrix liquid crystal display device, a thin film transistor (TFT) is mainly used.

The liquid crystal display of the active matrix type as described above is capable of lower power consumption, thinner thickness, and the like than the CRT, and can be used in personal computers, notebook computers, office copiers, and photocopiers. It is widely used to mobile devices such as.

The manufacturing process of such a liquid crystal display device is substrate cleaning, substrate patterning, alignment film formation, substrate joint / liquid crystal injection. It is divided into test process and mounting process.

In the manufacturing process of the liquid crystal display device, a tape carrier package (TCP) in which integrated circuits such as a gate drive integrated circuit and a data drive integrated circuit are mounted on a flexible printed circuit (FPC), is a pad of a liquid crystal panel. Connected to the negative. On the other hand, when the drive circuit is mounted in a chip on glass (chip on glass) method, the circuit pattern is directly mounted on the substrate in the substrate patterning process. Here, the liquid crystal panel before the integrated circuit is mounted is subjected to a test process for checking whether it works well. In the test process, the driving voltage is supplied to the liquid crystal panel to determine whether there is a defect according to whether the liquid crystal cell is turned on, and a test apparatus for the liquid crystal display device is used for the test.

The inspection apparatus for the liquid crystal display device grounds the TCP using a pogo block between the panel pad portion formed on the liquid crystal panel and the substrate pad portion formed on the PCB, and applies an arbitrary drive signal to check whether the liquid crystal panel is defective. To judge.

The pogo block is provided at the end of the TCP, and comprises an acrylic plate and a plurality of pogo pins penetrating the acrylic plate.

The plurality of pogo pins are made of metal and are electrically connected to a plurality of lines through which the driving signal of TCP is transmitted, and are electrically connected in one-to-one correspondence with pad portions of the PCB.

As described above, the inspection of the defect of the liquid crystal panel is possible because the pogo pin of the pogo block transmits a driving signal from the PCB to the liquid crystal panel, so that the pogo pin and the pad portion of the PCB should be accurately unlined.

Aligning the plurality of pogo pins and the pad portion of the PCB is connected to the pogo pin to the pad portion of the PCB while the human visually confirms directly, the pitch of each pad of the pogo pin and the pad portion is 300㎛ Given this, there was a problem that it could not be done properly at the time of alignment with the naked eye, and it was also difficult to check whether it was properly made after alignment. Therefore, the alignment work of the pogo pin and the PCB pad part not only consumes a lot of time, but also has a problem of low reliability.

In addition, since the pogo pin is to be provided by the number of each pad of the PCB, there is a problem in that the cost is increased as the size of the liquid crystal display device and the number of inspection devices for the liquid crystal display device increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector for a wiring film that can facilitate electrical connection between a terminal to which a plurality of lines are connected and a driving circuit corresponding thereto.

In addition, the present invention by providing a connector for the wiring film for the electrical connection of the pad portion of the FPC and PCB with a plurality of conductive patterns, a wiring film that can reduce the component cost by eliminating a number of pogo pins conventionally provided An object of the present invention is to provide a connector for a liquid crystal display device and a connector for the same.

In addition, an object of the present invention is to provide a connector for a wiring film and an inspection apparatus for a liquid crystal display device using the same, which can accurately align the pogo block and the pads of the PCB and at the same time reduce the working time.

In order to achieve the above object, a connector for a wiring film according to the present invention,

A fixing member provided at the end of the FPC to fix the FPC and to be seated on the pad of the PCB;

It is disposed on the holding member comprises a guide member for aligning the pad portion of the PCB and the holding member.

In addition, the inspection device for a liquid crystal display device according to the present invention,

A driving signal supply unit supplying a driving signal for driving the liquid crystal panel to the PCB; And

A guide member arranged on the pad member of the PCB to be fixed to the pad portion of the PCB to transfer the driving signal input from the driving signal supply unit to the liquid crystal panel, and arranged on the fixing member to align the fixing member. It comprises a connector for a wiring film having a member.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of an inspection apparatus for a liquid crystal display according to an exemplary embodiment of the present invention, and FIG. 2 is a detailed view of a pogo block showing region A of FIG. 1.

As shown in FIG. 1 and FIG. 2, the inspection apparatus for a liquid crystal display according to an exemplary embodiment of the present invention includes a panel table 110 in which the liquid crystal panel 100 is aligned, and one side of the panel table 110. A PCB table 140 on which a printed circuit board (PCB) 130 is disposed and arranged to drive the liquid crystal panel 100, and the liquid crystal panel 100 and the PCB 130 are electrically connected to each other. A plurality of FPC (flaxible printed circuit, 150) for connecting the connection, and the support 160 for supporting the FPC 150 to align the FPC 150 to the liquid crystal panel 100 and the PCB 130 It is configured by.

Although not shown in detail, the inspection apparatus for the liquid crystal display device further includes a driving signal supply unit supplying a driving signal for driving the liquid crystal panel 110.

The PCB 130 is mounted on a base substrate 131 of an insulating material, such as an acrylic plate, in order to prevent damage during the manufacturing process and the assembly process of the liquid crystal display and to prevent electrical interference from the outside.

A plurality of first and second pads (not shown) are formed on the PCB 130 and the liquid crystal panel 100 corresponding to both ends of the FPC 150.

A plurality of pogo blocks 180 is provided at one end of the FPC 150 corresponding to the plurality of first pads.

The pogo block 180 is a connection means of the FPC 150 used as an example of the PCB 150 and the wiring film, it may be defined as a connector (connector).

The pogo block 180 includes a fixing member 185 provided at the end of the FPC 150, a guide member 183 for aligning the fixing member 185 on the plurality of first pads, and a guide member 183. It is configured to include a support member 181 to prevent the separation of the fixing member 185.

An adhesive (not shown) for fixing the FPC 150 is applied to the rear surface of the fixing member 185.

The support member 181 is mounted on the base substrate 131 in the shape of a square pillar to prevent alignment defects of the fixing member 185 due to the step between the PCB 130 and the base substrate 131. Play a role.

On the one side of the support member 181, a plurality of first protrusions 188, which are in contact with the guide member 183, are formed to protrude, and a plurality of second protrusions are formed on both rear surfaces of the guide member 183 corresponding thereto. 182 is protruded.

The second protrusion 182 of the guide member 183 is seated on the first protrusion 188 of the support member 181, and the support member and the guide member 181, 183 are a plurality of first bolts. It is fixed on the base substrate 131 by 190.

The fixing member 185 is inserted between the support member and the guide members 181 and 183, and a groove (not shown) in which the square fixing member 185 having a step is inserted is formed. Able to know.

The fixing member 185 inserted into the fixing groove is one of the contact members, and is pressed by the plurality of second bolts 191 to be fixed on the first pad of the PCB 130. In addition, the fixing member 185 is in surface contact with the support member 181 by a plurality of second bolts 191.

The support members, the guide members 181 and 183 and the fixing member 185 are made of a plastic material to minimize the occurrence of foreign matters at the time of fastening and to facilitate the fastening.

The support members and the guide members 181 and 183 of the pogo block 180 are provided in a separate form, but are not limited thereto and may be formed in one piece.

As described above, the pogo block 180 is used as an inspection apparatus for a liquid crystal display, but is not limited thereto. The pogo block 180 is used as a connector for electrical connection between the PCB 130 and the wiring film. May be

The fastening method of the pogo block 180 will be described in detail with reference to FIGS. 3 and 4.

The driving signal input from the driving signal supply unit is transferred from the plurality of first pads of the PCB 130 to the FPC 150 via the pogo block 180 and along the conductive line of the FPC 150. The liquid crystal panel 100 is transferred to a plurality of second pads formed at one side thereof. The driving signals transmitted to the plurality of second pads are supplied to the gate line and the data line of the liquid crystal panel 100 to test whether the liquid crystal panel 100 is defective. The defect of the liquid crystal panel 100 should be maintained in a black state when a driving signal is input in the normally white mode. If any one of the gate line or the data line of the liquid crystal panel 100 is defective, only the line has a voltage. Since it is not applied, it maintains a white state, so that a defective line can be checked. In addition, the presence or absence of a defect of the liquid crystal cell can be confirmed that any one point on the screen of the liquid crystal panel 100 maintains a white state that the liquid crystal cell of the corresponding point is in a defective state.

Pogo block 180 according to an embodiment of the present invention described above is inserted between the support member and the guide member 181, 183 provided at the end of the FPC 150 between the fixing member and the fixing member As a structure for electrically connecting the FPC 150 fixed to the rear surface of 185 and the first pad of the PCB 130, it is possible to improve the reliability deterioration due to the alignment defect which has been a problem in the prior art.

In addition, the pogo block 180 of the present invention can reduce the cost by deleting the pogo pin was provided for the electrical connection with the PCB 130.

In addition, the pogo block 180 of the present invention has a structure in which the fixing member 185 is inserted between the support member and the guide members 181 and 183 in contrast to the alignment of the pogo block by a conventional pogo pin. Work time for phosphorus can be shortened and work efficiency can be improved.

FIG. 3 is an exploded perspective view of the pogo block showing the region A of FIG. 2, and FIG. 4 is a cross-sectional view illustrating the fastening of the pogo block taken along the line II ′ of FIG. 3.

As shown in Figure 3 and 4, the pogo block 180 according to an embodiment of the present invention is fixed to the end of the FPC 150 is seated on a plurality of first pad 132 of the PCB 130 The support member 181 for supporting the fixing member 185 to prevent misalignment of the fixing member 185 and the fixing member 185 due to the step between the PCB 130 and the base substrate 131. And a guide member 183 seated on the support member 181 to align the fixing member 185 to the first pad 132 of the PCB 130.

The support member 181 supports the fixing member 185 and has a third protrusion 189 protruding from one side of the front surface to prevent the fixing member 185 from being separated.

The support member and the guide member 181, 183 are formed with a plurality of first and second protrusions 188, 182 protruding from the ends of one side corresponding to each other, and the first and second protrusions 188, 182. A plurality of first and second bolt holes 193 and 194 penetrating therein are formed.

A third bolt hole 195 is formed in a region corresponding to the first and second bolt holes 193 and 194 in the base substrate 131 on which the support member 181 is seated.

A plurality of fourth bolt holes 196 to which a plurality of second bolts 191 are fastened is formed at the other side corresponding to one side of the guide member 183 where the second bolt hole 194 is formed.

The plurality of second bolts 191 presses the fixing member 185 to fix the first bolt 132 on the first pad 132 of the PCB 130.

As described above, the support member and the guide member 181, 183 are fixed on the base substrate 131 by the first bolt 190, and the fixing member 185 between the support member and the guide member 181, 183. ) Is inserted. The inserted fixing member 185 is fixed while being pressed in the direction of the first pad 131 by the second bolt 191. The fixing member 185 is firmly fixed without being separated by the third protrusion 189.

In the inspection apparatus for an LCD according to the exemplary embodiment described above, the support member and the guide members 181 and 183 are fixed on the base substrate 131, and between the support members 181 and 183. The fixing member 185 provided at the end of the FPC 150 is inserted to electrically connect the FPC 150 and the first pad 132 of the PCB 130. Can be improved.

In addition, the pogo block 180 of the present invention can reduce the cost, by removing the pogo pin that was conventionally provided by the quantity of each pad for the electrical connection with each pad of the PCB.

In addition, the pogo block 180 of the present invention is a simple structure in which the fixing member 185 is inserted between the support member and the guide member 181, 183 in contrast to the alignment using a conventional pogo pin, FPC 150 And the alignment work time between the first pad 131 of the PCB 130 can be greatly shortened and the work efficiency can be improved.

As described above, the present invention provides a connector for a wiring film having a simple structure, thereby reducing the working time during electrical connection between the PCB and the wiring film and improving the working efficiency.

In addition, the inspection apparatus for an LCD according to an embodiment of the present invention has a structure of electrically connecting the pads of the FPC and the PCB by inserting and fastening a fixing member provided at the end of the FPC between the supporting member and the guide member. It is possible to align and improve the reliability.

In addition, the pogo block of the present invention has a structure in which the conventional pogo pin is deleted, it is possible to greatly reduce the cost.

In addition, the pogo block of the present invention is a simple structure for inserting the fixing member between the support member and the guide member in contrast to the alignment using a conventional pogo pin, the alignment work time between the pad of the FPC and the PCB is greatly shortened The work efficiency can be improved.

Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. 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 (17)

A fixing member provided at an upper end of the FPC to fix the FPC and to be seated on a pad of the PCB; A guide member disposed on the fixing member to align the pad portion of the PCB with the fixing member; And It is disposed on the back of the guide member, and includes a support member for preventing the separation of the fixing member by the step between the PCB and the base substrate on which the PCB is seated, A first protrusion is formed on one side of the support member corresponding to the guide member, The guide member, Second protrusions are formed on both sides of the region corresponding to the first protrusions, The fixing member is a wiring film connector, characterized in that inserted between the support member and the second projection. The method of claim 1, And a plurality of contact members penetrating the guide member to press the fixing member to fix the fixing member to the pad portion of the PCB. delete The method of claim 1, The guide member and the support member is a wiring film connector, characterized in that fixed on the base substrate on one side of the PCB. The method of claim 1, The guide member and the support member is a wiring film connector, characterized in that made in one piece. The method of claim 1, The fixing member, the guide member and the support member is a wiring film connector, characterized in that made of a plastic material. The method of claim 1, And a plurality of fixing bolts for fixing the guide member, the support member, and the base substrate. The method of claim 2, The contact member is a wiring film connector, characterized in that the bolt. The method of claim 2, The guide member is a connector for a wiring film, characterized in that a plurality of holes through which the contact member penetrates in a region corresponding to the pad portion of the PCB. The method of claim 1, The backside of the fixing member is a wiring film connector, characterized in that the adhesive for fixing the FPC is applied. A driving signal supply unit supplying a driving signal for driving the liquid crystal panel to the PCB; A guide member which is mounted on the pad part of the PCB and is fixed on the upper end of the FPC to the liquid crystal panel to transfer the driving signal input from the driving signal supply part to the liquid crystal panel; A connector for a wiring film having a member; And A support member disposed on the rear surface of the guide member to prevent the fixing member from being separated by the step between the PCB and the base substrate on which the PCB is mounted; A first protrusion is formed on one side of the support member corresponding to the guide member, The guide member, Second protrusions are formed on both sides of the region corresponding to the first protrusions, And the fixing member is inserted between the supporting member and the second protrusion. The method of claim 11, And a plurality of contact members penetrating the guide member and pressing the fixing member to fix the fixing member to the pad portion of the PCB. delete The method of claim 11, And the guide member and the support member are fixed on the base substrate on one side of the PCB. The method of claim 11, And the guide member and the support member are integrally formed. The method of claim 11, The fixing member, the guide member and the support member are made of a plastic material. The method according to claim 1, Wherein the support member comprises: The third projection is formed on the other front side for the wiring film connector to prevent the separation of the fixing member.

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