阅读说明：本技术 包括连接器的显示设备 (Display device including connector ) 是由 沈锺珉 朴敏荣 于 2020-10-22 设计创作，主要内容包括：本申请涉及显示设备。显示设备包括配置成包括多个像素的显示面板、连接至显示面板的印刷电路板、安装在印刷电路板上的连接器以及固定至连接器的线缆,其中,连接器包括：第一连接器,其在印刷电路板上安装成包括第一电压焊盘、第二电压焊盘以及设置在第一电压焊盘与第二电压焊盘之间的多个信号焊盘；铰接件,其与第一连接器接合并且包括铰接轴；以及第二连接器,其用于相对于铰接轴旋转,第二连接器包括设置在第二连接器的面对第一连接器的表面上的第三电压焊盘和第四电压焊盘,其中,线缆插入在第一连接器与第二连接器之间。(The present application relates to a display device. The display apparatus includes a display panel configured to include a plurality of pixels, a printed circuit board connected to the display panel, a connector mounted on the printed circuit board, and a cable fixed to the connector, wherein the connector includes: a first connector mounted on the printed circuit board to include a first voltage pad, a second voltage pad, and a plurality of signal pads disposed between the first voltage pad and the second voltage pad; a hinge member engaged with the first connector and including a hinge shaft; and a second connector for rotating with respect to the hinge shaft, the second connector including third and fourth voltage pads disposed on a surface of the second connector facing the first connector, wherein the cable is interposed between the first and second connectors.)

1. A display device, comprising:

a display panel having a plurality of pixels;

a printed circuit board connected to the display panel;

a connector mounted on the printed circuit board; and

a cable fixed to the connector,

wherein the connector comprises:

a first connector mounted on the printed circuit board to include a first voltage pad, a second voltage pad, and a plurality of signal pads disposed between the first voltage pad and the second voltage pad;

a hinge engaged with the first connector and including a hinge shaft; and

a second connector for rotating with respect to the hinge shaft, the second connector including a third voltage pad and a fourth voltage pad, wherein,

the cable is interposed between the first connector and the second connector.

2. The display device according to claim 1,

the cable includes:

a base substrate;

a plurality of signal wirings provided on the first surface of the base substrate and positioned and arranged to contact the plurality of signal pads;

a first voltage wiring disposed on the second surface of the base substrate and positioned and configured to contact the third voltage pad; and

a second voltage wiring disposed on the second surface of the base substrate and positioned and configured to contact the fourth voltage pad.

3. The display device according to claim 2,

the first voltage wiring line transmits a first power voltage having a high voltage level applied to the plurality of pixels, an

The second voltage wiring transmits a second power voltage having a low voltage level applied to the plurality of pixels.

4. The display device of claim 3,

the plurality of signal wirings transmit image data signals and driving control signals for generating data voltages applied to the plurality of pixels.

5. The display device according to claim 1,

the hinge further comprises:

a first switching unit engaged with the hinge shaft at a position overlapping with the first voltage pad; and

a second switching unit engaged with the hinge shaft at a position overlapping with the second voltage pad.

6. The display device of claim 5,

the first switching unit includes a first switching pad connected to the third voltage pad, and the first switching pad is configured to contact the first voltage pad depending on a rotational position of the second connector.

7. The display device of claim 6,

the second switching unit includes a second switching pad connected to the fourth voltage pad, and the second switching pad is configured to contact the second voltage pad depending on the rotational position of the second connector.

8. The display device according to claim 7,

when the second connector is rotated in a closed state with respect to the hinge shaft to face the first connector, the first switching pad is in contact with the first voltage pad, and the second switching pad is in contact with the second voltage pad.

9. The display device according to claim 8,

when the second connector is rotated with respect to the hinge shaft to be in an open state and spaced apart from the first connector by a predetermined angle or more, the first switching pad is separated from the first voltage pad, and the second switching pad is separated from the second voltage pad.

10. The display device according to claim 1,

the third voltage pad and the fourth voltage pad have a width greater than a width of one of the plurality of signal pads.

11. The display device according to claim 1,

the third voltage pad and the fourth voltage pad are disposed on a surface of the second connector facing the first connector.

Technical Field

The present application relates to a connector and a display device including the same.

Background

The display device includes a display panel on which an image is displayed and an assembly for driving the display panel. The components for driving the display panel may be mounted on a plurality of printed circuit boards. The printed circuit boards may be connected to each other by a cable such as a Flexible Flat Cable (FFC). The cable may be electrically connected to a circuit pattern formed on the printed circuit board through a connector mounted on the printed circuit board.

Recently, the resolution and driving frequency of display devices have been improved, and display devices have more functions than ever. Accordingly, the number of data or control signals to be transmitted and received between the display panel and its components is increased, and the number of cables and connectors for transmitting and receiving the increased number of data and control signals is also increased. The increase in the number of cables and connectors may result in an increase in the weight and price of the display device.

The above information disclosed in this section is only for enhancement of understanding of the background of the invention and, therefore, the above information disclosed may not necessarily form prior art that has been known to those of ordinary skill in the art.

Disclosure of Invention

The organic light emitting diode display may display a desired luminance by applying a first power voltage to an anode electrode of the organic light emitting diode, applying a second power voltage to a cathode electrode, and controlling the amount of current flowing to the organic light emitting diode. A current path having a high allowable current for both the first power voltage and the second power voltage is required.

In the conventional connector, the allowable current of each pad is about 0.5A, and the first power voltage and the second power voltage require an allowable current of about 30A. The width of some pads of the connector may be expanded for the first and second power voltages that require high allowable current. In this case, the number of pads required for signal transmission in the limited space of the connector is reduced. When the number of pads for signal transmission in one connector is reduced, the number of cables and connectors included in the display device should be increased.

On the other hand, when the width of the wiring of the cable for transmitting the first power voltage and the second power voltage is not large enough, the cable may melt due to heat generated from the wiring.

Exemplary embodiments of the inventive concept can provide a connector capable of increasing an allowable current and a display apparatus including the connector.

Exemplary embodiments of the inventive concept provide a display apparatus including a display panel having a plurality of pixels, a printed circuit board connected to the display panel, a connector mounted on the printed circuit board, and a cable fixed to the connector, wherein the connector includes: a first connector mounted on the printed circuit board to include a first voltage pad, a second voltage pad, and a plurality of signal pads disposed between the first voltage pad and the second voltage pad; a hinge member engaged with the first connector and including a hinge shaft; and a second connector for rotating with respect to the hinge shaft, the second connector including a third voltage pad and a fourth voltage pad, wherein the cable is inserted between the first connector and the second connector.

The cable may include: a base substrate; a plurality of signal wirings provided on the first surface of the base substrate and positioned and arranged to contact the plurality of signal pads; a first voltage wiring disposed on the second surface of the base substrate and positioned and configured to contact the third voltage pad; and a second voltage wiring disposed on the second surface of the base substrate and positioned and configured to contact the fourth voltage pad.

The first voltage wiring may transmit a first power voltage having a high voltage level applied to the plurality of pixels, and the second voltage wiring may transmit a second power voltage having a low voltage level applied to the plurality of pixels.

The plurality of signal wirings may transmit image data signals and driving control signals for generating data voltages applied to the plurality of pixels.

The hinge may further include: a first switching unit engaged with the hinge shaft at a position overlapping with the first voltage pad; and a second switching unit engaged with the hinge shaft at a position overlapping with the second voltage pad.

The first switching unit may include a first switching pad connected to the third voltage pad, and the first switching pad may be configured to contact the first voltage pad depending on a rotational position of the second connector.

The second switching unit may include a second switching pad connected to the fourth voltage pad, and the second switching pad may be configured to contact the second voltage pad depending on a rotational position of the second connector.

When the second connector is rotated in a closed state with respect to the hinge shaft to face the first connector, the first switching pad may be in contact with the first voltage pad, and the second switching pad may be in contact with the second voltage pad.

When the second connector is rotated with respect to the hinge shaft to be in an open state and spaced apart from the first connector by a predetermined angle or more, the first switching pad may be separated from the first voltage pad, and the second switching pad may be separated from the second voltage pad.

The widths of the third and fourth voltage pads may be greater than the width of one of the plurality of signal pads, and the allowable current of the third and fourth voltage pads may be greater than the allowable current of one of the plurality of signal pads.

The third voltage pad and the fourth voltage pad may be disposed on a surface of the second connector facing the first connector.

Exemplary embodiments of the inventive concept provide a connector including a first connector, a hinge engaged with the first connector and including a hinge shaft, and a second connector for rotating with respect to the hinge shaft, wherein the first connector includes a first voltage pad, a second voltage pad, and a plurality of signal pads disposed between the first voltage pad and the second voltage pad, and the second connector includes a third voltage pad and a fourth voltage pad, wherein a cable is interposed between the first connector and the second connector.

The hinge may further include: a first switching unit engaged with the hinge shaft at a position overlapping with the first voltage pad; and a second switching unit engaged with the hinge shaft at a position overlapping with the second voltage pad.

The first switching unit may include a first switching pad connected to the third voltage pad, and the first switching pad may be configured to contact the first voltage pad depending on a rotational position of the second connector.

The second switching unit may include a second switching pad connected to the fourth voltage pad, and the second switching pad may be configured to contact the second voltage pad depending on a rotational position of the second connector.

The first and second switching units may have a cylindrical shape having a radius larger than that of the hinge shaft.

The first switching pad may be disposed on a portion of the curved surface of the first switching unit, and the second switching pad may be disposed on a portion of the curved surface of the second switching unit.

When the second connector is rotated in a closed state with respect to the hinge shaft to face the first connector, the first switching pad may be in contact with the first voltage pad, and the second switching pad may be in contact with the second voltage pad.

When the second connector is rotated with respect to the hinge shaft to be in an open state and spaced apart from the first connector by a predetermined angle or more, the first switching pad may be separated from the first voltage pad, and the second switching pad may be separated from the second voltage pad.

The third voltage pad may overlap one group of the signal pads, and the fourth voltage pad may overlap another group of the signal pads.

The widths of the third and fourth voltage pads may be greater than the width of one of the plurality of signal pads, and the allowable current of the third and fourth voltage pads may be greater than the allowable current of one of the plurality of signal pads.

The third voltage pad and the fourth voltage pad may be disposed on a surface of the second connector facing the first connector.

In an exemplary embodiment, the allowable current of the connector may be increased, thereby reducing the number of connectors and cables required in the display device.

Drawings

The above and other features of the present inventive concept will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, in which:

fig. 1 illustrates a schematic top view of a display apparatus according to an exemplary embodiment of the inventive concept;

fig. 2 illustrates a perspective view of a connector according to an exemplary embodiment of the inventive concept;

FIG. 3 shows a perspective view of a cable according to an exemplary embodiment of the present invention;

fig. 4 to 6 illustrate side views for describing a connection relationship between a connector and a cable according to an exemplary embodiment of the inventive concept; and

fig. 7 illustrates a perspective view of a cable according to another exemplary embodiment of the inventive concept.

Detailed Description

Embodiments of the present inventive concept will be described in more detail below with reference to the accompanying drawings, which illustrate exemplary embodiments of the inventive concept. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the inventive concept as defined by the following claims.

Further, in various exemplary embodiments of the inventive concept, the use of similar or identical reference numbers in various figures for components having identical configurations is intended to indicate the presence of similar or identical elements or features. For example, for components having different configurations in the two embodiments, different reference numerals may be used in the two drawings when each embodiment is illustrated by a separate drawing.

For clearly describing the inventive concept, portions irrelevant to the description are omitted, and the same reference numerals may denote the same elements or components throughout the specification and the drawings.

Further, the dimensions and thicknesses of the components shown in the figures are given for better understanding and ease of description. However, the drawings are not to scale and may not accurately reflect the precise structural or performance characteristics of any given implementation, and should not be construed as defining or limiting the range or nature of values encompassed by example implementations. In the drawings, the relative thicknesses of layers, films, panels, regions, etc. may be reduced or exaggerated for clarity.

It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. Further, the words "above" or "upper" mean positioned on or below the object portion, and do not necessarily mean positioned on the upper side of the object portion based on the direction of gravity. Spatially relative terms, such as "below," "lower," "over," "upper," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. Other words used to describe the relationship between elements should be interpreted in a similar manner.

In addition, throughout the specification, unless explicitly described to the contrary, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements (e.g., an apparatus, process or method may include other elements in addition to the stated elements).

Fig. 1 illustrates a schematic top view of a display apparatus according to an exemplary embodiment of the inventive concept.

Referring to fig. 1, the display apparatus includes a display panel 110, a first printed circuit board 120, a second printed circuit board 130, a connector 140, a cable 150, and a driving circuit unit 220.

The display panel 110 includes a display area DA and a peripheral area PA. The peripheral area PA may be an area surrounding the display area DA. The display area DA may include a plurality of pixels PX, and a plurality of gate lines and a plurality of data lines connected to the pixels PX. The pixels PX may be arranged in a row direction and a column direction. The gate lines may extend substantially in the row direction to be connected to the pixels PX. The data lines may extend substantially in the column direction to be connected to the pixels PX.

The display panel 110 may include a gate driver 230. The gate driver 230 may be disposed along one edge of the display area DA and connected to the gate lines. The gate driver 230 may sequentially apply gate signals of the gate-on voltage to the gate lines. The gate driver 230 may be integrated and disposed in the display panel 110. According to an exemplary embodiment, the gate driver 230 may be formed of an Integrated Circuit (IC) and may be mounted in the display panel 110 by a Chip On Glass (COG) method, a Chip On Film (COF) method, or the like.

The first printed circuit board 120 is disposed near the display panel 110. The first printed circuit board 120 may be connected to the display panel 110 through the driving circuit unit 220. The first printed circuit board 120 may be connected to the second printed circuit board 130 through a connector 140 and a cable 150. The cable 150 may be a Flexible Flat Cable (FFC). The connector 140 may be mounted in at least one of the first printed circuit board 120 and the second printed circuit board 130. The cable 150 may be fixed to the connector 140, and may be connected to the first and second printed circuit boards 120 and 130 through the connector 140.

The second printed circuit board 130 may have a signal controller 210 disposed therein. The signal controller 210 receives an image signal and an input control signal transmitted from the outside. The signal controller 210 generates an image data signal and a driving control signal according to the image signal and the input control signal. A power supply for supplying a voltage to drive the display panel 110 may be disposed in the second printed circuit board 130. The power supply may be provided separately from the signal controller 210 or may be included in the signal controller 210.

The first printed circuit board 120 receives a voltage for driving the display panel 110, an image data signal, and a driving control signal from the second printed circuit board 130 through the connector 140 and the cable 150.

The voltage for driving the display panel 110 includes a power voltage and a driving voltage. The power voltage is a voltage applied to the pixel PX, and is a voltage related to the luminance of the pixel PX. The power voltage may include a first power voltage and a second power voltage. The first power voltage may be a high-level voltage, and the second power voltage may be a low-level voltage. The first power voltage may be a voltage of substantially about 20V to about 30V. The second power voltage may be a negative voltage substantially lower than 0V or equal to 0V. The driving voltage is a voltage applied to the data driver 221 and the gate driver 230, and is a logic voltage for the operation of the data driver 221 and the gate driver 230. The driving voltage may be a voltage of substantially about 0V to about 3V.

The driving circuit unit 220 may include a data driver 221 and a flexible printed circuit board 222. The data driver 221 may be connected to the data lines. The data driver 221 receives an image data signal and a driving control signal from the signal controller 210. The data driver 221 may sample and hold an image data signal according to a driving control signal, and may apply a data voltage to the data line. The data driver 221 may be mounted in the flexible printed circuit board 222 by a Chip On Film (COF) method. The first end of the flexible printed circuit board 222 may be connected to the peripheral area PA of the display panel 110. A second end of the flexible printed circuit board 222 may be connected to the first printed circuit board 120. According to an exemplary embodiment of the inventive concept, the data driver 221 may be mounted in the peripheral area PA of the display panel 110 in a Chip On Glass (COG) manner.

The driving control signal and the driving voltage may be transmitted to the gate driver 230 through the flexible printed circuit board 222.

Hereinafter, the connector 140 will be described in more detail with reference to fig. 2, and the cable 150 will be described in more detail with reference to fig. 3.

Fig. 2 illustrates a perspective view of a connector according to an exemplary embodiment of the inventive concept.

Referring to fig. 2, the connector 140 includes a first connector 410, a hinge 420, and a second connector 430.

The first connector 410 includes a pad unit 411 and a hinge coupler 412. The first connector 410 may be mounted on at least one of the first printed circuit board 120 and the second printed circuit board 130. Hereinafter, the printed circuit board indicates at least one of the first printed circuit board 120 and the second printed circuit board 130.

The pad unit 411 is mounted on the printed circuit boards 120 and 130. A plurality of signal pads 415, a first voltage pad 416, and a second voltage pad 417 are disposed on the pad unit 411. The signal pad 415, the first voltage pad 416, and the second voltage pad 417 may be made of a metal such as aluminum (Al), copper (Cu), silver (Ag), molybdenum (Mo), chromium (Cr), gold (Au), platinum (Pt), palladium (Pd), tantalum (Ta), tungsten (W), titanium (Ti), or nickel (Ni), or a metal alloy thereof.

The signal pad 415 is disposed between the first voltage pad 416 and the second voltage pad 417. The signal pads 415 may be formed to extend in the first direction D1. The signal pad 415 may be disposed between the first voltage pad 416 and the second voltage pad 417 in the second direction D2. The first direction D1 may correspond to a direction along which the cable 150 is inserted or a longitudinal direction of the cable 150. The second direction D2 may be perpendicular to the first direction D1. The widths of the first and second voltage pads 416 and 417 may be greater than the width of the signal pad 415. Herein, the width denotes a length in the second direction D2.

The signal pad 415, the first voltage pad 416, and the second voltage pad 417 may be electrically connected to circuit patterns formed on the printed circuit boards 120 and 130.

The hinge coupler 412 is disposed to engage with the hinge 420 on the opposite side of the pad unit 411. For convenience of description, in fig. 2, the hinge coupler 412 is separated from the pad unit 411. Hinge coupler 412 may include a hole 413 for engaging hinge 420.

The hinge 420 is engaged with the first connector 410. The hinge member 420 includes a hinge shaft 421 and a switching unit 422.

The hinge shaft 421 may extend in the second direction D2 to be engaged with the hinge couplers 412 located on opposite sides of the pad unit 411. The hinge shaft 421 may be inserted into the hole 413 of the hinge coupler 412 located on the opposite side. The hinge shaft 421 may serve as a rotation shaft of the second connector 430.

The switching unit 422 is disposed on the opposite side of the hinge shaft 421. The switching unit 422 may be engaged with the hinge shaft 421 in the form of a cylinder having a radius larger than that of the hinge shaft 421. The central axis of the cylindrical body of the switching unit 422 may coincide with the hinge shaft 421. The switching unit 422 may include a first switching unit engaged with the hinge shaft 421 (e.g., engaged at the left side of the hinge shaft 421) at a position overlapping the first voltage pad 416, and a second switching unit engaged with the hinge shaft 421 (e.g., engaged at the right side of the hinge shaft 421) at a position overlapping the second voltage pad 417. In an exemplary embodiment, the first and second switching units may be cylindrical shapes having a radius larger than that of the hinge shaft 421. The first switching unit may include a first switching pad 423 disposed on a curved surface of the first switching unit, and the second switching unit may include a second switching pad 424 disposed on a curved surface of the second switching unit. The first and second switching pads 423 and 424 may be respectively disposed on portions of the curved surface of the switching unit 422. Each of the first and second switching pads 423 and 424 may be located at a portion greater than 90 degrees and less than 180 degrees in a curved surface of 360 degrees with respect to the hinge shaft 421 of the switching unit 422. The first switching pad 423 may be configured to contact the first voltage pad 416 depending on a rotational position of the second connector 430, and the second switching pad 424 may be configured to contact the second voltage pad 417 depending on a rotational position of the second connector 430. The first and second switching pads 423 and 424 may include a metal or a metal alloy.

The cable 150 may be inserted between the switching units 422 located on the opposite side. The switching unit 422 may perform a function of aligning the position of the cable 150 to insert the cable 150 into a predetermined position.

The second connector 430 may be engaged with the hinge 420 to rotate with respect to the hinge shaft 421. The second connector 430 may include a third voltage pad 431 and a fourth voltage pad 432, wherein the third voltage pad 431 and the fourth voltage pad 432 are disposed on a surface facing the first connector 410 by rotating with respect to the hinge shaft 421. The third voltage pad 431 and the fourth voltage pad 432 may include a metal or a metal alloy.

The third voltage pad 431 is connected with the first switching pad 423 and the fourth voltage pad 432 is connected with the second switching pad 424. For example, the first switching pad 423 may be connected to the third voltage pad 431, and the first switching pad 423 may be configured to be in contact with the first voltage pad 416 depending on the rotational position of the second connector 430. In another example, the second switching pad 424 may be connected to the fourth voltage pad 432, and the second switching pad 424 may be configured to be in contact with the second voltage pad 417 depending on a rotational position of the second connector 430. The third voltage pad 431 may overlap one group of the signal pads 415, and the fourth voltage pad 432 may overlap another group of the signal pads 415. The widths of the third and fourth voltage pads 431 and 432 may be greater than the width of the signal pad 415. Accordingly, the allowable current of the third voltage pad 431 and the allowable current of the fourth voltage pad 432 may be greater than the allowable current of the signal pad 415. The widths of the third and fourth voltage pads 431 and 432 may be greater than the widths of the first and second voltage pads 416 and 417. According to an exemplary embodiment of the inventive concept, the widths of the third and fourth voltage pads 431 and 432 may be equal to the widths of the first and second voltage pads 416 and 417.

When the connector 140 is in the closed state, the first switching pad 423 is in contact with the first voltage pad 416, and the second switching pad 424 is in contact with the second voltage pad 417. The closed state of the connector 140 is a state in which the second connector 430 is rotated with respect to the hinge shaft 421 to face the first connector 410.

When the connector 140 is in the open state, the first switching pad 423 is separated from the first voltage pad 416, and the second switching pad 424 is separated from the second voltage pad 417. For example, the first switching pad 423 does not contact the first voltage pad 416, and the second switching pad 424 does not contact the second voltage pad 417. The opened state of the connector 140 is a state in which the second connector 430 is rotated with respect to the hinge shaft 421 and is spaced apart from the first connector 410 by a predetermined angle or more.

Fig. 3 illustrates a perspective view of a cable according to an exemplary embodiment of the inventive concept.

Referring to fig. 3, the cable 150 includes a base substrate 151, a plurality of signal wirings 152, a first voltage wiring 153, a second voltage wiring 154, a first insulating layer 155, and a second insulating layer 156.

The base substrate 151 may be made of a flexible insulating material. The base substrate 151 may include an insulating film.

The signal wiring 152 is disposed on the first surface of the base substrate 151. The signal wiring 152 may extend in parallel in the same direction as the direction in which the base substrate 151 extends. For example, the signal wiring 152 may be disposed on a first surface (e.g., a lower surface) of the base substrate 151 and may extend in a first direction D1 (which is in an extending direction of the cable 150). In one embodiment, the signal wiring 152 disposed on the first surface of the base substrate 151 is positioned and configured to contact the signal pad 415. The signal wiring 152 may include a wiring for transmitting a driving voltage, an image data signal, and a driving control signal. In an exemplary embodiment, the signal wiring 152 transmits an image data signal and a driving control signal for generating a data voltage applied to the pixel PX.

The first voltage wiring 153 and the second voltage wiring 154 are disposed on a second surface (e.g., an upper surface) of the base substrate 151. The second surface of the base substrate 151 is opposite to the first surface of the base substrate 151. The first voltage wiring 153 and the second voltage wiring 154 may extend in parallel in the same direction along which the base substrate 151 extends. The first and second voltage wirings 153 and 154 may be disposed on the upper surface of the base substrate 151 and may extend in the first direction D1. In one embodiment, the second voltage wiring 154 disposed on the second surface of the base substrate 151 is positioned and configured to contact the fourth voltage pad 432. The first voltage wiring 153 may include a wiring for transmitting a first power voltage, and the second voltage wiring 154 may include a wiring for transmitting a second power voltage. In an exemplary embodiment of the inventive concept, the first voltage wiring 153 transmits a first power voltage having a high voltage level applied to the pixel PX, and the second voltage wiring 154 transmits a second power voltage having a low voltage level applied to the pixel PX.

The signal wiring 152, the first voltage wiring 153, and the second voltage wiring 154 may include a metal or a metal alloy. The widths of the first voltage wiring 153 and the second voltage wiring 154 are larger than the width of the signal wiring 152. Therefore, the allowable current of the first voltage wiring 153 and the second voltage wiring 154 may be larger than the allowable current of the signal wiring 152.

According to an exemplary embodiment of the inventive concept, a plurality of signal wirings 152 disposed on the first surface of the base substrate 151 may be in contact with the signal pads 415. The first voltage wiring 153 disposed on the second surface of the base substrate 151 may contact the third voltage pad 431. The second voltage wiring 154 disposed on the second surface of the base substrate 151 may be in contact with the fourth voltage pad 432.

The first insulating layer 155 may cover the signal wiring 152 to protect the signal wiring 152 from an external environment. The second insulating layer 156 may cover the first and second voltage wirings 153 and 154 to protect the first and second voltage wirings 153 and 154 from an external environment.

At the connection portion CP of the cable 150, the first insulating layer 155 does not cover the signal wiring 152, and the second insulating layer 156 does not cover the first voltage wiring 153 and the second voltage wiring 154. The connection portion CP of the cable 150 may be an end region of the cable 150. The signal wiring 152, the first voltage wiring 153, and the second voltage wiring 154 are exposed (e.g., not protected from the external environment) at the connection portion CP of the cable 150.

The cable 150 is inserted between the first connector 410 and the second connector 430. The connection portion CP of the cable 150 is disposed between the first connector 410 and the second connector 430. The signal wiring 152, the first voltage wiring 153, and the second voltage wiring 154 may be electrically connected to the connector 140 in the connection portion CP.

Hereinafter, the connection relationship between the connector 140 and the cable 150 will be described with reference to fig. 4 to 6.

Fig. 4 to 6 illustrate side views for describing a connection relationship between a connector and a cable according to an exemplary embodiment of the inventive concept.

Fig. 4 shows an open state of the connector 140, fig. 5 shows a closed state of the connector 140, and fig. 6 shows a state in which the voltage wiring of the cable 150 and the voltage pad of the connector 140 are electrically connected when the connector 140 is closed.

As shown in fig. 4, the second connector 430 is rotated in an opened state with respect to the hinge shaft 421, and is spaced apart from the pad unit 411 of the first connector 410 by a predetermined angle or more.

When the connector 140 is in the open state, the third voltage pad 431 is not in contact with the first voltage wiring 153 of the cable 150, and the first switching pad 423 is separated from the first voltage pad 416. The first switching pad 423 is not in contact with the first voltage pad 416. Similarly, the fourth voltage pad 432 is not in contact with the second voltage wiring 154 of the cable 150, and the second switching pad 424 is separated from the second voltage pad 417. The second switching pad 424 is not in contact with the second voltage pad 417. For example, the first voltage wiring 153 and the second voltage wiring 154 of the cable 150 are electrically separated from the connector 140. The first and second voltage wirings 153 and 154 of the cable 150 are electrically separated from the circuit patterns of the printed circuit boards 120 and 130.

As shown in fig. 5 and 6, the second connector 430 is rotated with respect to the hinge shaft 421 in a closed state facing the first connector 410.

When the connector 140 is closed, the third voltage pad 431 is in contact with the first voltage wiring 153 of the cable 150, and the first switching pad 423 is in contact with the first voltage pad 416. Similarly, the fourth voltage pad 432 is in contact with the second voltage wiring 154 of the cable 150, and the second switching pad 424 is in contact with the second voltage pad 417. For example, the first voltage wiring 153 of the cable 150 may be electrically connected to the first voltage pad 416 through the third voltage pad 431 and the first switching pad 423. In another example, the second voltage wiring 154 of the cable 150 may be electrically connected to the second voltage pad 417 through the fourth voltage pad 432 and the second switching pad 424. The first voltage wiring 153 may be electrically connected to the circuit patterns of the printed circuit boards 120 and 130 through the first voltage pad 416. The second voltage wiring 154 may be electrically connected to the circuit patterns of the printed circuit boards 120 and 130 through the second voltage pad 417.

In addition, the signal wiring 152 of the cable 150 is in contact with the signal pad 415. The signal wiring 152 may be electrically connected to the circuit patterns of the printed circuit boards 120 and 130 through the signal pad 415.

As described above, the signal wiring 152 is disposed on the first surface (e.g., the lower surface) of the cable 150, and the first voltage wiring 153 and the second voltage wiring 154 are disposed on the second surface (e.g., the upper surface) of the cable 150 over a wide range, and thus the cable 150 can be prevented from being melted due to heat generation of the wirings. In addition, since the third and fourth voltage pads 431 and 432 contacting the first and second voltage wirings 153 and 154 have a wide width, the allowable current of the connector 140 may be increased. Accordingly, the number of the connectors 140 and the cables 150 included in the display device may be reduced.

Fig. 7 illustrates a perspective view of a cable according to another exemplary embodiment of the inventive concept.

In contrast to the cable 150 shown in fig. 3, the cable 150' may further comprise a first shield layer 158 and a second shield layer 159 made of a metal or metal alloy.

The first shield layer 158 may be disposed on the first insulating layer 155 to block external electrical influence. The first shield layer 158 may cover the signal wiring 152 and prevent undesired noise from occurring in the image data signal and the driving control signal transmitted through the signal wiring 152.

A second shield layer 159 may be disposed on the second insulating layer 156 to block external electrical effects. The second shield layer 159 may cover the first and second voltage wirings 153 and 154 and prevent undesired noise from occurring in the first and second power voltages transmitted through the first and second voltage wirings 153 and 154.

According to an exemplary embodiment of the inventive concept, the first and second shield layers 158 and 159 do not cover the signal wiring 152, the first voltage wiring 153 or the second voltage wiring 154 at the connection portion CP of the cable 150'.

In an exemplary embodiment, either of the first shield layer 158 or the second shield layer 159 may be omitted.

While exemplary embodiments of the inventive concept have been particularly shown and described with reference to the accompanying drawings, the specific terminology used herein is for the purpose of describing the invention only and is not intended to be limiting either in its meaning or in its scope as set forth in the appended claims. Accordingly, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the inventive concept as defined by the following claims.