KR101249838B1 - Flat cable and display apparatus including the same - Google Patents

Abstract

The present invention relates to a flat cable and a display device including the same. The flat cable for connection between a plurality of devices according to the present invention is divided into a plurality of signal groups, and by the at least one separation section At least a portion of the plurality of signal groups are spaced apart from each other A plurality of signal lines; And a plurality of connectors respectively provided at both ends of the plurality of signal lines and connected to each of the plurality of devices, thereby enhancing the fluidity of the flat cable and further reducing noise due to interference between signal lines that may occur in this case. You can block.

Description

Flat cable and display device including the same {FLAT CABLE AND DISPLAY APPARATUS INCLUDING THE SAME}

The present invention relates to a flat cable and a display device including the same, and more particularly, by changing the structure of the flat cable to enhance the fluidity of the flat cable, and can further block noise due to interference between signal lines that may occur in this case. The present invention relates to a flat cable and a display device including the same.

A cable is used for communication or data transmission between each analog / digital integrated circuit (IC). At this time, the cable type used may be a wire form and a flat form.

Wire-type cables are easy to shape because of their excellent fluidity. However, a wire type cable generates a lot of poor contact between the connector and the connector, and a lot of disconnection of the wire occurs. Furthermore, wire type cables are expensive.

The signal lines present in the wire-type cable are tied together in close proximity to each other in a circular space along with the other wires. Therefore, when high-capacity data is transmitted at a high frequency, noise is greatly affected between signal lines.

Flat type cables have several to tens of thin signal lines that are laterally bonded to form a flat strip. In this case, since each signal line is spread, the noise effect between the signal lines is smaller than that of the wire type cable.

Such a flat type cable has less defects in contactability and is inexpensive. However, flat type cables have no fluidity compared to wire type cables. That is, when the transmitter and the receiver are not in a straight line, when the cables are folded and connected, interference between signal lines occurs according to the shape change, and the signal characteristics according to the length are changed.

Furthermore, since flat type cables cannot be used as flexibly as wire type cables, there are many derivatives of the folding specification. For example, depending on the location of the connectors on the motherboard and panel, the way in which the flat cable is folded varies. In this case, various types of flat cables are derived according to the folding specifications, and thus many specifications exist, making it difficult to manage.

Accordingly, an object of the present invention is to enhance the fluidity of the flat cable by changing the structure of the flat cable, and further to block noise due to interference between signal lines which may occur in this case.

Furthermore, by improving the shaping details and fixing specifications of the flat cable to reinforce fluidity, it is possible to increase the shaping and assembly efficiency of the flat cable.

The object is, according to the present invention, a flat cable for connection between a plurality of devices, separated into a plurality of signal groups, by the at least one separation section At least a portion of the plurality of signal groups are spaced apart from each other A plurality of signal lines; And a plurality of connectors respectively provided across the plurality of signal lines and connected to each of the plurality of devices.

In the flat cable, the separation section may be cut. In the flat cable, the separation section may be parallel to the direction in which the signal is transmitted. In the flat cable, the plurality of signal lines may be connected to the signal lines belonging to the same signal group side by side. In the flat cable, the plurality of signal lines may transmit Low Voltage Differential Signaling (LVDS). In the flat cable, the signal group may include at least one of a signal line for transmitting a + signal, a signal line for transmitting a-signal, and a ground line. The flat cable may further include a tube-shaped binding member for binding the plurality of signal groups. In the flat cable, the binding member may be made of any one material of silicon, plastic, and rubber. In the flat cable, the binding member may be formed with a spiral cut line. In the flat cable, each of the plurality of signal groups may be bent at a predetermined angle to maintain a predetermined interval between the plurality of signal groups. The flat cable may further include a plurality of envelopes surrounding each of the plurality of signal lines. In the flat cable, the plurality of sheaths, a net-like pattern may be formed on the surface. In the flat cable, the mesh pattern may be made of silver. In the flat cable, the separation section may be formed corresponding to the pattern arrangement of the mesh shape. The flat cable may further include a shield for noise shielding in the separation section. In the flat cable, the shield may be provided in a line form. In the flat cable, the shield may be made of at least one of aluminum and iron. In the flat cable, the plurality of connectors may be connected to the plurality of devices arranged to be offset in a predetermined direction on any plane formed by the plurality of signal lines.

On the other hand, according to the present invention, there is provided a display apparatus, comprising: a signal processor including a first device for processing a received video signal; A display unit including a second device displaying the video signal; And a flat cable for connection between the first device and the second device, wherein the flat cable is divided into a plurality of signal groups, and is separated by at least one separation section. At least a portion of the plurality of signal groups are spaced apart from each other A plurality of signal lines; And a plurality of connectors respectively provided at both ends of the plurality of signal lines and connected to each of the plurality of devices.

As described above, according to the present invention, the fluidity of the flat cable may be enhanced to have the same degree of fluidity as that of the wire cable, and in this case, noise due to interference between signal lines may occur.

Further, by improving the formability and fixing specifications of the flat cable to reinforce fluidity, it is possible to increase the shaping and assembly efficiency of the flat cable.

1A is a diagram illustrating a configuration of a general flat cable.
Figure 1b is a view showing the configuration of a flat cable according to an embodiment of the present invention.
Figure 1c is a view showing the configuration of a flat cable according to another embodiment of the present invention.
2a and 2b are views for explaining a flat cable according to another embodiment of the present invention.
3 illustrates a plurality of signal lines separated according to an embodiment of the present invention.
Figure 4a is a diagram showing a case of connecting a pair of devices using a common flat cable.
Figure 4b is a view showing a case of connecting a pair of devices using a flat cable according to an embodiment of the present invention.
5 is a diagram illustrating a configuration of a display apparatus according to an embodiment of the present invention.
6A shows a flat cable tied with tape.
Figure 6b is a view showing a binding member according to an embodiment of the present invention.
Figure 6c is a view showing a case in which the flat cable according to an embodiment of the present invention is tied by the binding member shown in Figure 6b.
6D is a view showing a case of shaping the flat cable shown in FIG. 6C.
FIG. 7A shows a plurality of wires tied with a binding member. FIG.
FIG. 7B illustrates a shaping specification of a wire in accordance with one embodiment of the present invention. FIG.
FIG. 7C is a view showing a case of shaping the flat cable shown in FIG. 7B. FIG.
8 is a view showing a case where a silver plate pattern is formed on a flat cable according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

1A is a diagram illustrating a configuration of a general flat cable.

The general flat cable 10 is bonded to the plurality of signal lines 11 to the side to form a flat strip. In this case, each signal line included in the plurality of signal lines 11 is formed by each of the plurality of shells 11a, 11b, 11c, 11d, 11e, 11f, 11g, 11h. It is enclosed and a plurality of envelopes (11a, 11b, 11c, 11d, 11e, 11f, 11g, 11h) are laterally connected to each other.

On the other hand, a pair of connectors 12a and 12b are provided at both ends of the plurality of signal lines 11, respectively, and the pair of connectors 12a and 12b are connected to each of a pair of devices (not shown).

In FIG. 1A, the plurality of envelopes 11a, 11b, 11c, 11d, 11e, 11f, 11g, and 11h surrounding each of the plurality of signal lines are shown in FIG. 1a. They are bonded to each other laterally. Therefore, the flat cable 10 does not have fluidity in the left and right directions. If the plurality of devices arranged to be shifted in a predetermined direction using the flat cable 10 are connected, the flat cable 10 may be folded and used.

1B is a view showing the configuration of a flat cable according to an embodiment of the present invention.

The flat cable 100 according to an embodiment of the present invention is for connection between a plurality of devices (not shown) included in the electronic device (not shown), or the electronic device and various peripheral devices. It may be for connection between a plurality of devices each provided in (not shown). In this case, the flat cable 100 may be in the form of a flat strip.

Flat cable 100 according to an embodiment of the present invention, a plurality of signal lines 110, a plurality of sheath (110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i) and a plurality of connectors ( 120a, 120b).

The plurality of signal lines 110 may be divided into a plurality of signal groups, and at least one portion of the plurality of signal groups may be spatially separated by at least one separation period.

The separation section may be parallel to the direction in which the signal is transmitted. Specifically, the separation section may be disposed in the longitudinal direction of the flat cable 100, that is, in a direction parallel to the plurality of signal lines 110.

The separation section may be truncated. In this case, the flat cable 100 may be cut off the connection between the plurality of signal groups.

In FIG. 1B, the envelope 110a surrounding the first signal line to the envelope 110c surrounding the third signal line belong to the first signal group. In addition, the outer shell 110d surrounding the fourth signal line and the outer shell 110e surrounding the fifth signal line may include the outer shell 110f surrounding the sixth signal line and the outer shell 110g surrounding the seventh signal line. ) Belongs to the third signal group, and the envelope 110h surrounding the eighth signal line and the envelope 110i surrounding the ninth signal line belong to the fourth signal group. In this case, the separation sections 141, 142, and 143 which are cut off between the first signal group and the second signal group, between the second signal group and the third signal group, and between the third signal group and the fourth signal group, respectively, exist. In FIG. 1B, the separation sections 141, 142, and 143 in the cut shape are set to be shorter than the entire length of the flat cable 100. When the separation sections 141, 142, and 143 of the flat cable 100 are cut, the flat cable 100 may be flexibly flexed in the left and right directions. As a result, the flat cable 100 is secured in the horizontal direction.

On the other hand, the signal lines 110 may be connected to the signal lines belonging to the same signal group side by side. Specifically, signal lines belonging to the same signal group may be bonded and connected in an unfolded form. In FIG. 1B, portions connected to signal lines are illustrated in dotted lines. Referring to FIG. 1B, the envelope 110a surrounding the first signal line, the envelope 110b surrounding the second signal line, and the envelope 110c surrounding the third signal line are laterally connected to each other. In addition, the outer shell 110d surrounding the fourth signal line and the outer shell 110e surrounding the fifth signal line, the outer shell 110f surrounding the sixth signal line, the outer shell 110g surrounding the seventh signal line, and the eighth signal line The outer shell 110h covering the shell and the outer shell 110i surrounding the ninth signal line are each connected to the side.

Meanwhile, the signal group may include at least one of a signal line transmitting a + signal, a signal line transmitting a − signal, and a ground line. In this case, the signal groups may be classified by various criteria. According to an embodiment, the signal lines 110 may be classified into a plurality of signal groups in consideration of transmission characteristics of the signals. In detail, when transmitting differential signaling (DS), signal lines having opposite polarities may be classified into the same signal group. For example, the + signal and the-signal can be classified into one group. In addition, the + signal, the-signal, and the 0V signal can be classified into one group. On the other hand, when transmitting a signal by a TTL (Transistor to Transistor Logic) signal or 12C communication, the plurality of signal lines 110 can be classified into a plurality of signal groups according to arbitrary criteria or user's settings.

The plurality of signal lines 110 transmits a plurality of signals between the plurality of devices. For example, the plurality of signal lines 110 may transmit a 0V signal, a + signal, and a − signal of each channel.

According to an embodiment, the plurality of signal lines 110 may transmit a low voltage differential signal (LVDS). The LVDS signal is a differential signal having a low voltage swing. If one signal has a high value, the other signal has a low value and has a constant average value overall. In this case, the transmitting end transmits two signals having different voltages, and the receiving end compares two different voltages. Specifically, the transmitting end generates and transmits two signals having opposite polarities, and the receiving end compares two voltages having opposite polarities with reference to the two signals.

The plurality of envelopes 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i may surround each of the plurality of signal lines 110. In this case, the plurality of envelopes 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i surrounding each of the plurality of signal lines 110 may be connected to each other. The plurality of envelopes 110a, 110b, 110c, 110d, 110e, 110f, 110g, 110h, 110i protect each of the plurality of signal lines 110.

The plurality of connectors 120a and 120b may be provided at both ends of the plurality of signal lines 110 and may be connected to each of the plurality of devices. According to an embodiment, the plurality of connectors 120a and 120b may be connected to a plurality of devices arranged to shift in a predetermined direction on any plane formed by the plurality of signal lines 110.

1C is a diagram showing the configuration of a flat cable according to another embodiment of the present invention.

In the flat cable 100 according to another embodiment of the present invention, the separation sections 161, 162, and 163 of the cut shape are set to be equal to the entire length of the flat cable 100.

In FIG. 1C, the outer shell 150a surrounding the first signal line to the outer shell 150c surrounding the third signal line belong to the first signal group. In addition, the outer shell 150d covering the fourth signal line and the outer shell 150e covering the fifth signal line have an outer shell 150f covering the sixth signal line and an outer shell 150g covering the sixth signal line in the second signal group. ) Is included in the third signal group, and the envelope 150h surrounding the eighth signal line and the envelope 150i surrounding the ninth signal line belong to the fourth signal group. In this case, the separation sections 161, 162, and 163 which are cut off between the first signal group and the second signal group, between the second signal group and the third signal group, and between the third signal group and the fourth signal group, respectively, exist. In FIG. 1C, the separation sections 161, 162, and 163 in the cut form are the same as the entire length of the flat cable 100. Thereby, the fluidity in the left and right directions can be secured more than in the case of FIG. 1B.

Meanwhile, the portion shown in dotted lines in FIG. 1C shows that signal lines belonging to the same group are laterally connected to each other. Since it has already been mentioned in Figure 1b it will be omitted. In addition, the flat cable 100 according to another embodiment of the present invention is basically the same as the flat cable 100 shown in Figure 1b, except for the separated section (161.162, 163) of the cut form. Therefore, the content duplicated with the content described with reference to FIG. 1B is omitted.

2A and 2B are views for explaining a flat cable according to another embodiment of the present invention.

In the flat cable 100 according to another embodiment of the present invention, a plurality of signal lines 110 are divided into a plurality of signal groups so that at least a portion of each of the plurality of signal groups may be spatially separated by at least one separation section. Spaced apart, may include a shield for noise shielding in the separation section.

The shield is for shielding noise and may be provided in a separation section. The shield may be made of at least one material of aluminum and iron.

Meanwhile, the shield may be provided in various forms. According to one embodiment, the shield may be provided in a line form in the separation section. According to another exemplary embodiment, the shield may be provided to enclose a signal line belonging to each signal group.

In FIG. 2A, each communication line corresponds to each signal group comprising signal lines. In this case, each communication line may include at least one of a signal line transmitting a + signal, a signal line transmitting a − signal, and a ground line.

When a plurality of signal lines are separated for each signal group, noise due to interference may occur between adjacent signal lines belonging to the same group. Therefore, in order to prevent interference between adjacent signal lines, a plurality of signal lines may be divided into a plurality of signal groups, and further, a shield may be inserted between each separated signal group. Specifically, the + signal line and the-signal line can be classified into one group. In addition, the + signal line, the-signal line and the ground line can be classified into one group. Thereby, it is possible to remove the voltage in phase between the differential signal, that is, the + signal and the-signal, and to block noises that interfere with each other to improve noise immunity.

In FIG. 2B, between the first signal group 210a and 210b and the second signal group 210c and 210d, between the second signal group 210c and 210d and the third signal group 210e and 210f, the third signal group Between the 210e and 210f and the fourth signal group 210g, 210h and 210i, there are cut-off periods in which the shields 251, 252 and 253 are included.

On the other hand, in Figure 2b, the portion shown in the dotted form, shows that the signal lines belonging to the same group are connected to each other side by side. Since it has already been mentioned in Figure 1b it will be omitted. In addition, the flat cable 100 according to another embodiment of the present invention is basically a flat cable 100 shown in Figure 1b, except for the cut-out section of the cut form including the shield (251, 252, 253) Is the same as Therefore, the content duplicated with the content described with reference to FIG. 1B is omitted.

3 is a diagram illustrating a plurality of signal lines separated according to an embodiment of the present invention.

3 shows a case of transmitting an LVDS signal. Difference The signal may be transmitted in a pair of a + signal and a-signal in consideration of the differential signaling characteristic. Specifically, each group may include a 2pin signal or 3pin. In this case, the 2pin signal may include a + signal and a-signal. In addition, the 3pin signal may include a + signal, a-signal, and a ground signal.

In FIG. 3, Group 1, Group 2, Group 3, Group 5, Group 7 and Group 9 transmit a 3pin signal. In this case, pins 1, 2 and 3 of the group 1 each transmit a 5V signal. Pins 4 and 6 included in group 2 transmit 0V signal, and pin 5 transmits NC signal, that is, reset signal. Pin 7 in group 3 sends 0V signal, pin 8 sends RXE3 + signal, and pin 9 sends RXE3- signal. Pin 12 included in group 5 transmits RXE2 + signal, pin 13 transmits RXE2- signal, and pin 14 transmits 0V signal. Pin 17 in Group 7 sends 0V signal, Pin 18 sends RXE0 + signal, and Pin 19 sends RXE0- signal. Pin 22 of group 9 transmits RXOC + signal, pin 23 transmits RX0C- signal, and pin 24 transmits 0V signal. That is, the 3pin signals transmitted in Group 1, Group 2, Group 3, Group 5, Group 7, and Group 9 consist of two signals having opposite polarities and a signal of 0V.

Meanwhile, 4 groups, 6 groups, 8 groups, 10 groups, 11 groups, and 12 groups transmit 2 pin signals. Pin 10 in Group 4 sends the RXEC + signal, and Pin 11 sends the RXEC- signal. Pin 15 included in group 6 transmits RXE1 + signal, and pin 16 transmits RXE1- signal. Pin 20 of Group 8 transmits RXO3 + signal, and Pin 21 transmits RXO3- signal. Pin 25 included in group 10 transmits RX02 + signal and pin 26 transmits RX02- signal. Pin 27 included in group 11 transmits RX01 + signal, and pin 28 transmits RX01- signal. Pin 29 included in Group 12 transmits RXO0 + signal, and Pin 30 transmits RX00- signal. That is, the 2pin signals transmitted in 4 groups, 6 groups, 8 groups, 10 groups, 11 groups, and 12 groups are composed of two signals having opposite polarities.

As a result, it is possible to remove voltages in phase between the differential signals included in each group and to block noise that may be caused by interference with each other.

On the other hand, there is a separated section (A section, B section, C section, D section, E section, F section, G section, H section, I section, J section, K section cut between each group. Specifically, section A between groups 1 and 2, section B between groups 2 and 3, section C between groups 3 and 4, section D between groups 4 and 5, and section E between groups 5 and 6 Segment, F segment between 6 and 7 groups, G segment between 7 and 8 groups, H segment between 8 and 9 groups, I segment between 9 and 10 groups, J between 10 and 11 groups A section exists and there is a K section between the 11 and 12 groups.

Thus, by providing a separation section cut into 2Pin, 3Pin in consideration of the differential signaling characteristics in the flat cable, it is possible to secure the same degree of fluidity as the wire (wire) cable.

4A is a diagram illustrating a case where a pair of devices are connected by using a general flat cable.

The pair of devices to be connected by the flat cable 10 may be arranged to shift in a predetermined direction on any plane. Since the general flat cable 10 is not flexible, when the transmitting end and the receiving end of the flat cable 10 are not aligned in this manner, the flat cable 10 should be folded and connected to a pair of devices. In this case, interference between signal lines occurs, which causes noise.

4B is a diagram illustrating a case where a pair of devices are connected by using a flat cable according to an embodiment of the present invention.

When providing the separation section of the flat cable 100 is cut, the flat cable can be flexibly flexed in the left and right directions. 4B illustrates a case in which the flat cable 100 is bent and connected to a pair of devices. In FIG. 4B, the dotted line portion is a portion in which signal lines are connected to each other. The solid line portion existing between the signal lines is a truncated section.

As a result, in a flat cable in which a plurality of signal lines are spread in a line, fluidity similar to that of a wire cable can be secured. That is, a pair of devices can be connected by bending the flat cable in the vertical direction or the left and right directions. Thereby, the fluidity in all directions of a flat cable, ie, the fluidity in an up-down direction and a left-right direction, improves.

5 is a diagram illustrating a configuration of a display apparatus according to an embodiment of the present invention.

The display apparatus 500 according to an embodiment of the present invention may be a TV, a laptop computer, a desktop computer, a set top box, or the like. Further, if the electronic device including a plurality of devices, each device can be connected by a cable, it can be a display device 500 according to an embodiment of the present invention.

The display apparatus 500 according to an exemplary embodiment of the present invention may include a signal processor 510, a display unit 520, and a flat cable 530.

The signal processor 510 may include a first device 515 that processes a received video signal.

The display unit 520 may include a second device 525 that displays an image signal. In this case, the second device 525 may be implemented in the form of a liquid crystal display (LCD), an organic light emitting diode (OLED), a plasma display panel (PDP), or the like. It may include a display panel (not shown) and a panel driver (not shown) for driving the display panel.

The flat cable 530 may connect the first device 515 and the second device 525. In this case, the flat cable 530 may include a plurality of signal lines 532, at least one shield 534, and a plurality of connectors 536 and 538.

The plurality of signal lines 532 may be divided into a plurality of signal groups, and at least one portion of the plurality of signal groups may be spatially separated by at least one separation period. The separation section may be slit. In this case, the flat cable 530 may be cut off the connection between the plurality of signal groups.

The shield 534 is for shielding noise and may be included in the separation section.

The plurality of connectors 536 and 538 include a first connector 536 and a second connector 538. In this case, the plurality of connectors 536 and 538 may be provided at both ends of the plurality of signal lines 532, respectively, and may be connected to the first device 515 and the second device 525, respectively. 5, the first connector 536 may be connected to the first device 515, and the second connector 538 may be connected to the second device 525.
The bundle section of the flat cable can be made in various forms. There may be a method of arranging a plurality of signal groups in an overlapping manner and tying them with a tape, and stacking them with each other and binding them with a binding member.

6A shows a flat cable tied with tape.

In the flat cable 600 according to an exemplary embodiment of the present invention, a connection portion between a plurality of signal groups may be cut off. Hereinafter, this type of flat cable 600 will also be referred to as a wire type flexible flat cable. In addition, each of the separated signal groups is defined as a wire.

In order to fix the separated wire of the flat cable 600, the wire center portion may be fixed with the tape 610. In this state, connect the connectors for connecting both ends of the flat cable 600 to the board to form Done. However, in this case, since the separated wire is fixed by the tape 610, the flat cable 600 is shaped with the fluidity | liquidity reduced. In addition, when assembled in this state, the pressure received by the flat cable 600 is increased to shorten the life, and when assembling the product, the shaping is difficult and assembly failure may occur. In addition, a problem may occur that the flat cable 600 is pulled out or stamped on another part during use after production.

6B is a view showing a binding member according to an embodiment of the present invention.

The binding member 620 according to an embodiment of the present invention may be in the form of a tube as a means for binding a plurality of wires. In this case, the binding member 620 may be made of any one material of silicon, plastic, and rubber. If composed of these materials, binding The member 620 is not strong in strength and can be bent freely. In addition, the binding member 620 may be formed with a spiral cut line. In this case, the binding member 620 having the incision line may be stretched with flexibility.

FIG. 6C is a diagram illustrating a case where the flat cable according to the embodiment of the present invention is bundled by the binding member shown in FIG. 6B.

As shown in FIG. 6C, the flat cable 600 includes a binding member 620 having a central portion of a plurality of wires 601, 602, 603, 604, 605, 606, 607, 608, and 609. Can be tied by).

FIG. 6D illustrates a case of shaping the flat cable shown in FIG. 6C.

When fixing the central portion of the flat cable 600 to a soft silicone tube or a plastic tube instead of a fixed type tape, a plurality of wires are formed in a tube shape according to the shaping direction of the flat cable 600. May move within the binding member 620. Alternatively, the width of the binding member 620 may be flexibly increased by the cut line formed in the binding member 620 according to the shaping direction of the flat cable 600.

Thereby, the stress which the flat cable 600 receives because of a shaping specification can be improved, and fluidity can be ensured.

FIG. 7A shows a plurality of wires tied with a binding member. FIG.

In FIG. 7A, the flat cable 700 is tied at its central portion by a binding member. In this case, the center portion is fixed by the binding member, The plurality of wires 701, 702, 703, 704, 705, 706, 707, 708, and 709, which are separated parts, have no directivity. Only consistently divided in the horizontal direction. Accordingly, the direction of each of the plurality of wires 701, 702, 703, 704, 705, 706, 707, 708, 709 is consistent in accordance with the standard specification. It is not shaped, but moves, and each wire 701, 702, 703, 704, 705, 706, 707, 708, 709 is subjected to different pressures. As a result, there is a high possibility of a defect such as assembly failure or wire or connector sheathing.

FIG. 7B is a diagram illustrating a shaping specification of a wire according to an embodiment of the present invention. FIG.

The standard specification of wires 701, 702, 703, 704, 705, 706, 707, 708, 709 according to an embodiment of the present invention is a plurality of wires 701, 702, 703, 704. Wires 701, 702, 703, 704, 705, 706, 707, 708, 709 are bent at a predetermined angle so as to maintain a predetermined distance from each other, 705, 706, 707, 708, 709 It may be.

The uppermost figure in FIG. 7B shows a flat cable 700 with a plurality of wires shaped, while the lower left and lower right figures show wires 701, 702, 703, 704 and 705, respectively. 706, 707, 708, and 709 are enlarged.

Wires 701, 702, 703, 704, 705, 706, 707, 708, 709 connected to the connectors at both ends of the flat cable 700 may be folded to the right or to the left according to the shaping direction. Specifically, referring to the bottom left drawing of FIG. 7B, the wires 701, 702, 703, 704, 705, 706, 707, 708, 709 are folded in the left direction. Referring to the bottom right view of FIG. 7B, the wires 701, 702, 703, 704, 705, 706, 707, 708, 709 are folded in the right direction.

FIG. 7C is a view showing a case of shaping the flat cable shown in FIG. 7B.

As shown in FIG. 7C, when the plurality of wires 701, 702, 703, 704, 705, 706, 707, 708, and 709 are folded and shaped, the flat cable 700 may move naturally. have.

Accordingly, the direction of each of the plurality of wires 701, 702, 703, 704, 705, 706, 707, 708, 709 is consistently shaped according to the shaping specification. In this case, each wire 701, 702, 703, 704, 705, 706, 707, 708, 709 is subjected to the same pressure. As a result, the probability of assembly failure, wire or connector sheath, or the like is lowered.

8 is a view showing a case in which a silver plate pattern is formed on a flat cable according to an embodiment of the present invention.

A silver plate pattern may be formed on an outer surface of the flat cable 800 according to an embodiment of the present invention. In this case, the separation section of the flat cable 800 may be set to correspond to the pattern arrangement of the mesh form.

The silver plate pattern is a pattern in the form of a mesh, and may be made of silver. The silver plate pattern changes the impedance characteristics of the flat cable 800 to standard. In general, flat cable 800 cannot meet the impedance specified in the specification. Therefore, by forming a silver plate pattern on the surface of the flat cable 800, the impedance of the flat cable 800 is dropped. Before forming the silver plate pattern, the impedance of the flat cable 800 is about 130 to 140 ohms, but after forming the silver plate pattern, the impedance of the flat cable 800 is lowered to about 90 to 110 ohms.

Referring to FIG. 8, the silver plate pattern is composed of a plurality of X shapes and a plurality of Y shapes. In this case, the separation section of the flat cable 800 may be formed corresponding to the pattern arrangement of the mesh shape. Specifically, a section of the truncated form exists between the first signal group 801 and the second signal group 802. The X-shaped pattern constituting the silver plate is formed on the outer surface of the first signal group 801. In this case, the X shape is formed so as not to be cut by the section a.

In addition, a section b, which is truncated, exists between the second signal group 802 and the third signal group 803. The Y-shaped pattern constituting the silver plate is formed on the outer surface of the second signal group 802. The Y shape is formed so as not to be cut by the a section and the b section.

In this manner, the plurality of X shapes and the plurality of Y shapes constituting the silver plate pattern may be set corresponding to the separation section of the flat cable 800.

According to FIG. 8, the connection portion between the plurality of signal groups constituting the flat cable 800 is cut while the silver plate pattern is maintained. Thereby, the impedance characteristic change by a silver plate pattern can be achieved effectively.

Although several embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various modifications may be made without departing from the principles and spirit of the invention . The scope of the invention will be determined by the appended claims and their equivalents.

100: flat cable 110: a plurality of signal lines
110a to 110i: a plurality of shells 120a and 120b: a plurality of connectors
620: binding member

Claims (29)

delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete A signal processor which processes the received video signal; A display unit which displays an image signal processed by the signal processor; In the display device comprising a flat cable connecting the signal processing unit and the display unit,
The flat cable,
Is divided into a plurality of signal groups, and At least a portion of the plurality of signal groups are spaced apart from each other to transmit a Low Voltage Differential Signaling (LVDS) signal. A plurality of signal lines;
A binding member in the form of a tube that binds all of the plurality of signal groups of the plurality of signal lines; And
A plurality of connectors provided at both ends of the plurality of signal lines and connected to the signal processing unit and the display unit, respectively;
The signal group may include at least one of a signal line for transmitting a + signal, a signal line for transmitting a -signal, and a ground line.
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