KR20170077604A - Flexible cable connector and display device having the same - Google Patents

Abstract

The flexible cable connector unit of the present invention includes a first connector and a second connector arranged in a flexible cable. The first connector includes a connecting portion and a reinforcing portion of the flexible cable, and a first coupling portion including a metal material or a magnet material is disposed on both sides of the reinforcing portion. The second connector includes a seat portion on which the connection portion is seated and a second connector that engages with the first engagement portion, and the second engagement portion has a shape corresponding to the first engagement portion and includes a metal material or a magnet material. Therefore, according to the present invention, accurate fastening and fastening force can be improved by the shape and magnetic force of the first and second connectors of the first connector and the second connector, thereby preventing failure in connection and signal connection failure.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flexible cable connector unit and a display device including the flexible cable connector unit.

The present invention relates to a flexible cable connector unit and a display device including the same.

2. Description of the Related Art In recent years, various display devices (Panel Displays) capable of reducing weight and volume, which are disadvantages of cathode ray tubes (CRTs), have been developed. Such a display device includes a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP) And an electrophoretic display (EPD).

The liquid crystal display device is a device for displaying a desired image by adjusting the light transmittance of liquid crystal cells arranged in a matrix according to image signal information, and forms an image on a liquid crystal panel by using light irradiated to the backlight unit . The liquid crystal display device using such a principle has been gradually widened due to features such as light weight, thinness, and low power consumption driving. In accordance with this trend, liquid crystal display devices are used in office automation equipment, audio / video equipment, and the like. In such a liquid crystal display device, a light transmission amount is adjusted according to a signal applied to a plurality of control switches arranged in a matrix form to display a desired image on a screen. 2. Description of the Related Art In recent years, liquid crystal display devices have been extensively applied to computer monitors, televisions, display devices of vehicle navigator systems, and portable display devices such as notebook computers and cellular phones.

Further, the organic light emitting diode display device has advantages of high response speed, high luminous efficiency, high luminance and wide viewing angle by using a self-luminous element which emits light by itself. The organic light emitting diode display controls the voltage between the gate terminal and the source terminal of the driving transistor to control the current flowing from the drain to the source of the driving transistor. The current flowing from the drain to the source of the driving transistor flows through the organic light emitting diode and emits light, and the degree of light emission can be controlled by controlling the amount of current.

The display device described above includes a driver for supplying various signals to the display panel to display an image on the display panel. And a connector for fastening a flexible cable and a flexible cable for signal transmission between the driver and the control board to the driver and control board.

However, as the display device becomes increasingly sophisticated, the number of output signals output from the control board is increased, and the number of conductive lines of the flexible cable for transmitting it to the driver is also increased, and the spacing between the conductive lines is becoming finer. Therefore, when the flexible cable is slightly twisted and tightened with the connector, short-circuiting between the conductive lines and poor connection such as un-tightening will occur.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a flexible cable connector unit capable of preventing a defective engagement between a flexible cable and a connector.

The present invention also provides a flexible cable connector unit capable of improving the fastening force of the flexible cable and the connector.

The present invention also provides a flexible cable connector unit capable of improving workability of fastening of a flexible cable and a connector.

A first reinforcing portion disposed on a first surface of the flexible cable and having a connecting portion exposed with a plurality of wires and a reinforcing portion disposed on a second surface of the flexible cable and projecting to both sides, And a second connector including a seat portion on which the connector and the connecting portion are seated and a second engaging portion corresponding to the first engaging portion and engaging with the first engaging portion, wherein the first engaging portion and the second engaging portion have a magnetic force The flexible cable connector unit can be provided. Therefore, the present invention can increase the accuracy of fastening of the flexible cable and the connector, thereby preventing the poor connection of the flexible cable and the connector and the bad connection of the signal connection, and improving the workability of fastening the flexible cable and the connector.

According to the present invention, it is possible to provide a flexible cable connector unit capable of increasing the accuracy of fastening of the flexible cable and the connector, thereby preventing the poor connection between the flexible cable and the connector and the poor signal connection.

Further, the present invention can provide a flexible cable connector unit capable of improving the fastening force of the flexible cable and the connector.

Further, the present invention can provide a flexible cable connector unit in which workability can be improved by fastening fastening of a flexible cable and a connector by attraction of a magnet.

1 is a block diagram schematically showing a display device according to an embodiment of the present invention.
FIG. 2 is an exemplary view of the subpixel shown in FIG. 1; FIG.
FIG. 3 is a schematic view showing the display device shown in FIG. 1. FIG.
4 is a view illustrating a first connector according to an embodiment of the present invention.
5 is a view illustrating a second connector according to an embodiment of the present invention.
6 is a view of the first and second connectors before fastening according to the embodiment of the present invention.
FIG. 7 is a view illustrating the first and second connectors fastened according to the embodiment of the present invention. FIG.

The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various forms. In addition, the present embodiments are provided so that the disclosure of the present invention is complete and that those skilled in the art will fully understand the scope of the present invention. Further, the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of the layers and regions in the figures may be exaggerated for clarity of illustration.

It will be understood that when an element or layer is referred to as being another element or "on" or "on ", it includes both intervening layers or other elements in the middle, do. On the other hand, when a device is referred to as "directly on" or "directly above ", it does not intervene another device or layer in the middle.

The terms spatially relative, "below," "lower," "above," "upper," and the like, And may be used to easily describe the correlation with other elements or components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element. Thus, the exemplary term "below" can include both downward and upward directions.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprise "and / or" comprising ", as used in the specification, means that the presence of stated elements, Or additions.

FIG. 1 is a block diagram schematically showing a display device according to an embodiment of the present invention, FIG. 2 is an exemplary view of the subpixel shown in FIG. 1, and FIG. 3 is a view schematically showing the display device shown in FIG. .

Referring to FIG. 1, a display device according to an exemplary embodiment of the present invention includes a timing controller 120, a gate driver 130, a data driver 140, and a display panel 150.

The timing controller 120 outputs a gate timing control signal GDC for controlling the operation timing of the gate driver 130 and a data timing control signal DDC for controlling the operation timing of the data driver 140. [ The timing controller 120 supplies the data driver 140 with the data signal DATA along with the data timing control signal DDC.

The data driver 140 samples and latches the data signal DATA in response to the data timing control signal DDC supplied from the timing controller 120, and converts the sampled data signal into a gamma reference voltage. The data driver 140 may be mounted on a flexible circuit board or a printed circuit board that is formed of an integrated circuit (IC) and mounted on the display panel 150 or connected to the display panel 150. The data driver 140 supplies the data signal DATA to the sub-pixels SP included in the display panel 150 through the data lines DL.

The gate driver 130 outputs a gate signal while shifting the level of the gate voltage in response to the gate timing control signal GDC supplied from the timing controller 120. The gate driver 130 may be mounted on the display panel 150 or may be mounted on a printed circuit board connected to the display panel 150. [ Also, the gate driver 130 may be formed on the display panel 150 in the form of a gate-in-panel. The gate driver 130 supplies a gate signal to the sub-pixels SP included in the display panel 150 through the gate lines GL.

The display panel 150 displays an image corresponding to the gate signal supplied from the gate driver 130 and the data signal DATA supplied from the data driver 140. The display panel 150 includes sub-pixels SP for displaying an image. The subpixels SP included in the display panel 150 may be implemented as an organic light emitting device, a liquid crystal display device, and an electrophoretic display device.

As shown in FIG. 2, one sub-pixel SP is supplied with the scan signals supplied through the switching transistor SW and the switching transistor SW connected to the gate line GL1 and the data line DL1, And a pixel circuit PC that operates in response to the data signal DATA. The subpixel SP is implemented by a liquid crystal display panel including a liquid crystal element or an organic light emitting display panel including an organic light emitting element according to the configuration of the pixel circuit PC. When the display panel 100 is composed of a liquid crystal display panel, it may be a twisted nematic (TN) mode, a VA (Vertical Alignment) mode, an IPS (In Plane Switching) mode, a FFS (Fringe Field Switching) mode, or an ECB (Electrically Controlled Birefringence) Mode. When the display panel 100 is formed of an organic light emitting display panel, it may be implemented as a top emission, a bottom emission, or a dual emission.

As shown in Fig. 3, the display panel 150 includes a display area AA for displaying an image and a non-display area NA for not displaying an image. A gate driver is formed on the left, right or left and right sides of the non-display area NA. The gate driver is formed on the display panel 150 in the form of a gate-in-panel. Also, since the gate driver may not be a gate-in-panel type, the present invention is not limited to the gate driver. And may include a printed circuit board (not shown) on which the gate driver is mounted if it is not a gate-in-panel type.

The flexible circuit board 145 is attached to the display panel 150. One side of the flexible circuit board 145 is attached to the lower side of the non-display area NA by an anisotropic conductive film or the like. The data driver 140 is mounted on the flexible circuit board 145. A plurality of flexible circuit boards 145 are provided corresponding to the size of the display panel 150. Although the data driver 140 is mounted on the flexible circuit board 145 in the drawing, the present invention is not limited thereto, and the data driver 140 may be mounted on the printed circuit board.

In recent years, as the size of the printed circuit board increases as the display device is used for a large-sized TV or the like, the printed circuit board can be separated and applied. In the embodiment of the present invention, the printed circuit board 165 is separately applied to the first and second data printed circuit boards 165a and 165b and the drive printed circuit board 165c. However, the printed circuit board is not limited to the embodiment of the present invention, and can be applied to fewer or more numbers. The first and second data printed circuit boards 165a and 165b are data printed circuit boards that transfer the signals supplied from the drive printed circuit board 165c to the signal lines of the data driver 140 or the display panel 150. [ The driving printed circuit board 165c converts the signals supplied from the system by the timing controller 120 and supplies the converted signals to the first and second data printed circuit boards 165a and 165b. The first and second data printed circuit boards 165a and 165b are attached to the flexible circuit board 145. The first and second data printed circuit boards 165a and 165b are attached to the other side of the flexible circuit board 145 by an anisotropic conductive film or the like. The first and second data printed circuit boards 165a and 165b are electrically connected to the drive printed circuit board 165c. The first and second data printed circuit boards 165a and 165b and the drive printed circuit board 165c are electrically connected through the flexible cable connector units 200 and 500 provided on the other side and the other side. An integrated circuit such as a timing control unit 120 and a video control unit is mounted on the drive printed circuit board 165c. Although the timing control unit 120 is mounted on the drive printed circuit board 165c in the drawing, the present invention is not limited thereto, and the timing control unit may be mounted on the first and second data printed circuit boards 165a and 165c .

The flexible cable connector unit 200 or 500 according to the embodiment of the present invention includes a first connector 200 positioned at the end of the flexible cable 400 and a second connector 200 connected to the first connector 200 (500).

FIG. 4 is a view showing a first connector according to an embodiment of the present invention, and FIG. 5 is a view showing a second connector according to an embodiment of the present invention.

4, a first connector 200 according to an embodiment of the present invention includes a reinforcing part 300 including a connection part 440 and a first coupling part 310 of a flexible cable 400. [ The connection part 440 is disposed on the first surface of the flexible cable 400 and a plurality of wires 420 are exposed. The reinforcing part 300 includes a first coupling part 310 disposed on a second surface of the flexible cable 400 and protruding on both sides.

The flexible cable 400 may be either an FPC (flexible plastic cable) type or an FFC (flexible flat cable) type. The flexible cable 400 may include a base film 410, a plurality of wires 420, a cover film 430, and a connection portion 440. The base film 410 may be a flexible insulating material, for example, a polyimide film or a polyester film. The plurality of wirings 420 are disposed on the first surface of the base film 410 and are spaced apart from each other by a predetermined distance so as to be insulated from each other, and made of a metal material such as copper. The cover film 430 is disposed on the first surface of the base film 410 to protect the plurality of wirings 420. The connection portion 440 is located at an end of the flexible cable 400 and the plurality of wires 420 disposed on the first surface of the base film 410 are exposed to the outside by a predetermined length.

The reinforcing part 300 is located at the end of the flexible cable 400 and may be disposed on the second surface of the flexible cable 400. More specifically, the reinforcing portion 300 may be disposed on the second surface of the base film 410 in correspondence with the connection portion 440 disposed on the first surface of the base film 410. The reinforcing part 300 supports the connection part 440 of the flexible cable 400 having flexibility to help the connection part 440 to effectively contact the seating part 510 of the second connector 500. That is, the reinforcing part 300 prevents the contact failure between the first connector 200 and the second connector 500 from occurring. In addition, the reinforcing portion 300 includes first coupling portions 310 protruding from both sides. The first coupling portion 310 is not limited to the shape shown in FIG. That is, the first coupling portion 310 may have a circular shape, an elliptical shape, a triangular shape, or a square shape. The first coupling portion 310 has a shape corresponding to the second coupling portion 520 of the second connector 500 and can be engaged with the second coupling portion 520. In addition, the first coupling unit 310 may include a metal material or a magnet material for accurate fastening and fastening of the first connector 200 and the second connector 500. Accordingly, the first coupling portion 310 may be coupled to the second coupling portion 520 by a magnetic force. That is, the first coupling portion 310 helps the connection portion 440 of the first connector 200 to be accurately connected to the seating portion 510 of the second connector 500. Therefore, the first coupling portion 310 prevents the first connector 200 and the second connector 500 from being defective.

5, the second connector 500 according to the embodiment of the present invention includes a seating part 510 on which the connection part 440 of the first connector 200 is seated, A second coupling portion 520 coupled to the coupling portion 310 and a supporting portion 530 made of an insulating material to support the seating portion 510 and the second coupling portion 520. The second connector 500 may be disposed on one side of the printed circuit board 165.

The seating portion 510 may include printed wiring that contacts the plurality of wirings 420 of the connection portion 440. That is, the seating part 510 can receive the signal of the first connector 200.

The second engaging portion 520 may be disposed on both sides of the seating portion 510. The second engaging portion 520 has a shape corresponding to the first engaging portion 310 of the first connector 200. That is, the shape of the second engaging portion 520 is not limited to the shape of the second engaging portion 520 shown in FIG. 5 because the second engaging portion 520 has a shape corresponding to the first engaging portion 310. The second coupling portion 520 may include a metal material or a magnet material that increases coupling force with the first coupling portion 510. Accordingly, the second coupling portion 520 may be coupled to the first coupling portion 310 by a magnetic force.

FIG. 6 is a view of the first and second connectors according to the embodiment of the present invention, and FIG. 7 is a view of the first and second connectors fastened according to the embodiment of the present invention.

6 and 7, a first connector 200 according to an embodiment of the present invention is coupled to a second connector 500 disposed on a printed circuit board 165. More specifically, the connection portion 440 of the first connector 200 is engaged with the seating portion 510 of the second connector 500. In this case, since the first coupling portion 310 of the first connector 200 and the second coupling portion 520 of the second connector 500 are coupled in a corresponding shape, the coupling portion 440 and the seating portion 510 ) Can be correctly combined.

In addition, the first and second connectors 200 and 500 may have the same structure as the first and second connectors 200 and 500 to improve the fastening force and the fastening force of the first and second connectors 200 and 500, (310, 520) can be variously selected.

In the first embodiment, the first coupling portion 310 of the first connector 200 includes a metal material, and the second coupling portion 520 of the second connector 500 may include a magnet material. That is, the fastening force of the first and second connectors 200 and 500 is improved by the metal material of the first coupling part 310 and the attractive force of the magnet material of the second coupling part 520, Since the engaging portions 310 and 520 have a shape corresponding to each other, accurate fastening is possible.

In the case of the second embodiment, the first coupling portion 310 of the first connector 200 includes a magnet material, and the second coupling portion 520 of the second connector 500 may include a metal material. That is, the first connector and the second connector 200 and 500 are improved in the fastening force by the magnet material of the first coupling portion 310 and the attractive force of the metal material of the second coupling portion 520, Since the engaging portions 310 and 520 have a shape corresponding to each other, accurate fastening is possible.

In the case of the third embodiment, the first coupling portion 310 of the first connector 200 includes a magnet material, and the second coupling portion 520 of the second connector 500 may include a magnet material. In addition, the polarities of the first and second coupling parts 310 and 520 may be different from each other. For example, the portion of the first coupling portion 310 which is in contact with the second coupling portion 520 may have an N pole, and the first coupling portion 310 of the second coupling portion 520 The part to be contacted may be the polarity of the S pole. In contrast, the portion of the first coupling portion 310 that is in contact with the second coupling portion 520 may have an S-pole polarity, and may be in contact with the first coupling portion 310 of the second coupling portion 520 The polarity of the N pole can be obtained. That is, since the contact portions of the first and second coupling portions 310 and 520 including the magnet material are of different polarities, the first connector and the second connector 200 and 500 have attractive force, 1 and the second engaging portions 310 and 520 are in a shape corresponding to each other, accurate fastening becomes possible.

Therefore, the present invention can increase the accuracy of fastening of the flexible cable and the connector, thereby preventing the poor connection and poor signal connection between the flexible cable and the connector.

Further, the present invention can improve the fastening force of the flexible cable and the connector.

In addition, the present invention can improve workability by fastening fastening of a flexible cable and a connector by accurate attraction of a magnet.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

120 timing controller
130 gate driver
140 data driver
145 Flexible circuit board
150 Display panel
165 printed circuit board
200 first connector
300 reinforcement portion
400 flexible cable
500 second connector

Claims (8)

A first connector disposed on a first surface of the flexible cable and including a reinforcing portion including a connection portion in which a plurality of wires are exposed and a first coupling portion disposed on a second surface of the flexible cable and protruding on both sides; And
And a second connector including a seating part on which the connecting part is seated and a second engaging part having a shape corresponding to the first engaging part and engaging with the first engaging part,
And the first engaging portion and the second engaging portion are engaged by a magnetic force. The method according to claim 1,
Wherein the first coupling portion includes a metal material,
And the second coupling portion comprises a magnet material. The method according to claim 1,
Wherein the first coupling portion comprises a magnet material,
And the second coupling portion includes a metal material. The method according to claim 1,
Wherein the first coupling portion and the second coupling portion comprise a magnet material,
Wherein the polarities of the magnetic portions of the portions where the first coupling portion and the second coupling portion are contacted are different from each other. Display panel;
And a reinforcing portion disposed on the first surface and including a connection portion exposed with a plurality of wires and a first engagement portion disposed on the second surface and projecting to both sides;
And a second connector coupled to the first connector and having a shape corresponding to the first connector of the first connector, the second connector being coupled to the first connector, And a printed circuit board including a second connector,
Wherein the first engaging portion and the second engaging portion are engaged by a magnetic force. 6. The method of claim 5,
Wherein the first coupling portion includes a metal material,
And the second coupling portion includes a magnet material. 6. The method of claim 5,
Wherein the first coupling portion comprises a magnet material,
And the second coupling portion includes a metal material. 6. The method of claim 5,
Wherein the first coupling portion and the second coupling portion comprise a magnet material,
Wherein a polarity of a magnetism of a portion where the first engaging portion and the second engaging portion are in contact with each other is different.

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