KR102313861B1 - Wearable Device - Google Patents

Abstract

The present invention provides a polygonal display panel comprising a first substrate and a second substrate, and a liquid crystal layer between the first and second substrates, the display panel having first to nth surfaces (n is a natural number equal to or greater than 5); and a first driving part attached to a side surface of the first surface of the display panel, wherein the display panel includes a first pad formed to protrude from the side surface of the first surface and contacting the first driving part. wearable devices that

Description

Wearable Device {Wearable Device}

The present invention relates to a wearable device, and more particularly, to a round wearable device having a narrow bezel width.

As the information society develops, the demand for a display device for displaying an image is increasing in various forms, including a liquid crystal display device (LCD device), a plasma display panel device (PDP device), Various flat panel display devices (FPD devices) such as an organic light emitting diode display device (OLED display device) have been widely developed and applied to various fields.

Among these flat panel display devices, the liquid crystal display device is widely used because it has advantages such as miniaturization, light weight, thinness, and low power driving.

In general, a liquid crystal display uses optical anisotropy and polarization properties of liquid crystal, and includes two substrates and a liquid crystal layer between the two substrates, and a pixel electrode and a common electrode for driving liquid crystal molecules in the liquid crystal layer. Accordingly, in the liquid crystal display device, the liquid crystal molecules move by the electric field generated by applying a voltage to the pixel electrode and the common electrode, thereby expressing an image by the light transmittance that varies accordingly.

The liquid crystal display device is divided into a passive matrix type and an active matrix type according to a driving method, and the active matrix type is widely used because low power consumption, high definition, and large size are possible.

Such an active matrix type liquid crystal display is variously applied from portable devices such as smart phones and multimedia devices to laptops or computer monitors and large-sized televisions.

Recently, a wearable device, which is considered as a next-generation mobile technology that can replace a smartphone, has been widely studied.

A wearable device refers to a device that can be attached to a body to perform a computing action, and includes an application capable of performing some computing functions. The wearable device may be divided into an accessory type, an integrated clothing type, a body-attached/bioimplantable type, and the like. Among them, the accessory type can be divided into glasses attachable type, bracelet type, armband type, pendant type, and wrist wearable type. , it is being actively developed because it has the scalability to implement an independent app within the terminal.

An object of the present invention is to provide a wearable device having various shapes and a narrow bezel.

In order to achieve the above object, the present invention includes a first substrate and a second substrate, and a liquid crystal layer between the first and second substrates, and the first to nth surfaces (n is a natural number equal to or greater than 5). a polygonal display panel having a polygonal shape; It provides a wearable device comprising a pad.

A display area and a non-display area are defined in the display panel, a first wiring is formed in the display area, a first link line connected to one end of the first wiring is formed in the non-display area, and the first The other end of the link line extends to a side surface of the first surface of the display panel and is connected to the first pad.

The first pad is formed of silver paste.

The display panel includes a second wiring formed in the display area, a second link line formed in the non-display area and connected to one end of the second wiring, and protruding from a side surface of the first surface, and It further includes a second pad connected to the other end of the two-link line and in contact with the first driving unit.

In this case, n is 6 or 8.

Alternatively, n is 6, and the wearable device includes a second driving part attached to a side surface of the second surface of the display panel, a third driving part attached to a side surface of the third surface of the display panel, and the display panel. The display panel further includes a fourth driving part attached to a side surface of a fourth surface and a fifth driving part attached to a side surface of the sixth surface of the display panel, wherein the display panel is formed to protrude from the side surface of the second surface, and a second pad in contact with the second driving part; a third pad protruding from a side surface of the third surface and in contact with the third driving part; and a fourth pad that protrudes from the side surface of the sixth surface, and a fifth pad that is in contact with the fifth driver, wherein the first, second, and fourth driver are data drivers supplying data voltages. and the third and fifth drivers are gate drivers for supplying gate signals.

Alternatively, n is 8, and the wearable device includes a second driving part attached to a side surface of the second surface of the display panel, a third driving part attached to a side surface of the third surface of the display panel, and a second part of the display panel. The display panel further includes a fourth driving part attached to the side surface of the fourth surface, a fifth driving part attached to the side surface of the fifth surface of the display panel, and a sixth driving part attached to the side surface of the seventh surface of the display panel, wherein the The display panel may include a second pad protruding from a side surface of the second surface and contacting the second driving unit, a third pad protruding from a side surface of the third surface and contacting the third driving unit; a fourth pad protruding from the side surface of the fourth surface and in contact with the fourth driving part; a fifth pad formed to protrude from the side surface of the fifth surface and contacting the fifth driving part; and a sixth pad protruding from the side surface and contacting the sixth driving unit, wherein the first, second, and fifth driving units are data driving units supplying data voltages, and the third, fourth, and sixth driving units are It is a gate driver that supplies a gate signal.

In the wearable device according to the present invention, since the display panel has a polygonal shape having five or more sides, and the gate driver and the data driver are attached to the side surface of the display panel using a side bonding method, a wearable device using a rectangular display panel Compared to that, the bezel width is narrow and a uniform round wearable device can be implemented.

In addition, in the wearable device according to the present invention, by attaching a single driver to the side of the display panel using a side bonding method and applying a signal to the gate wiring and the data wiring, the number of parts and processes can be reduced, thereby reducing costs. .

1A and 1B are plan views schematically illustrating a display panel of a wearable device according to an embodiment of the present invention.
2 is a cross-sectional view schematically illustrating a display panel of a wearable device according to an embodiment of the present invention.
3A and 3B are cross-sectional views schematically illustrating a wearable device according to an embodiment of the present invention.
4 is a flowchart illustrating a manufacturing process of a display device according to an exemplary embodiment of the present invention.
5A and 5B are cross-sectional views schematically illustrating a display device in a pad forming step during a manufacturing process of the display device according to an exemplary embodiment of the present invention.
6 is a cross-sectional view schematically illustrating the display device in the step of applying a back resin during the manufacturing process of the display device according to an embodiment of the present invention.
7 is a cross-sectional view schematically illustrating a display device in a side sealing step during a manufacturing process of the display device according to an exemplary embodiment of the present invention.
8A and 8B are diagrams schematically illustrating a connection relationship between a display panel, a gate driver, and a data driver of a wearable device according to an embodiment of the present invention.
9A and 9B are diagrams schematically illustrating a display panel and a case of a wearable device according to an embodiment of the present invention.
10A and 10B are diagrams schematically illustrating a connection relationship between a display panel and a single driver of a wearable device according to another exemplary embodiment of the present invention.

When the active matrix type liquid crystal display is applied to a wearable device, in particular, a wrist-worn device, it is difficult to realize various shapes.

More specifically, in the active matrix type liquid crystal display device, by forming a switching element in each pixel, a gate signal is sequentially applied to apply a data voltage to the pixel during the selection period, and the pixel is isolated during the non-selection period. An image is displayed by maintaining the applied data voltage for the selection period until the next gate signal is applied. Accordingly, the active matrix type liquid crystal display device is driven in a rectangular shape, and a driving circuit for supplying a gate signal and a data voltage must be attached, so that the liquid crystal panel has a rectangular shape.

Accordingly, since the wrist wearable device to which the active matrix type liquid crystal display is applied is manufactured in a rectangular shape, it is difficult to implement various shapes.

On the other hand, when a round type wrist wearable device such as a circle is manufactured using a rectangular liquid crystal panel, the four edges become bezels that do not participate in image display, so there is a problem that the bezel width is relatively thick, and the driving circuit Since a pad area of a certain area is required on the substrate of the liquid crystal panel to attach the , it is difficult to form a uniform bezel width.

Hereinafter, a wearable device having various shapes and a narrow bezel according to an embodiment of the present invention will be described in detail with reference to the drawings.

1A and 1B are plan views schematically illustrating a display panel of a wearable device according to an embodiment of the present invention.

As shown in FIGS. 1A and 1B , the display panel 110 of the wearable device according to the embodiment of the present invention has a polygonal shape having five or more surfaces, and may have a hexagonal or octagonal shape, for example.

An outer black matrix 146 is formed at an edge of the display panel 110 . Like the display panel 110 , the outer black matrix 146 also has a polygonal shape having five or more surfaces. An area surrounded by the outer black matrix 146 is defined as a display area for displaying an image, and an area surrounding the display area and in which the outer black matrix 146 is located is defined as a non-display area.

In the display area, the gate line GL extends in the first direction, the data line DL extends in the second direction, and the gate line GL and the data line DL cross each other to form the pixel area ( P) is defined.

Although not shown, a thin film transistor is formed at each intersection of the gate line GL and the data line DL, a pixel electrode and a common electrode are formed in each pixel area P, and each pixel area P is sequentially formed Corresponds to one of the red, green, and blue color filters repeatedly arranged as .

Such a display panel will be described in more detail with reference to FIG. 2 . 2 is a cross-sectional view schematically illustrating a display panel of a wearable device according to an embodiment of the present invention. Here, a case in which the display panel is a liquid crystal panel will be described as an example.

As shown in FIG. 2 , the display panel 110 of the wearable device according to the embodiment of the present invention includes a first substrate 120 , a second substrate 140 , and first and second substrates 120 and 140 . ) and a liquid crystal layer 150 between them. A display area DA displaying an image and a non-display area NDA surrounding the display area DA are defined in the first substrate 120 and the second substrate 140 .

A gate wiring (GL in FIGS. 1A and 1B ), a gate electrode 122 , and a common wiring (not shown) are formed in the display area DA on the inner surface of the first substrate 120 . The gate wiring (GL of FIGS. 1A and 1B) extends along the first direction, and the gate electrode 122 is connected to the gate wiring (GL of FIGS. 1A and 1B). The gate electrode 122 may extend from the gate wiring (GL in FIGS. 1A and 1B ) or be a part of the gate wiring (GL in FIGS. 1A and 1B ). The common wiring extends parallel to and spaced apart from the gate wiring (GL in FIGS. 1A and 1B ) along the first direction.

A gate insulating layer 124 is formed over the gate wiring (GL in FIGS. 1A and 1B ), the gate electrode 122 , and the common wiring. The gate insulating layer 124 may also be formed in the non-display area NDA, and the gate insulating layer 124 may be formed of an inorganic insulating material of _{silicon nitride (SiNx) or silicon oxide (SiO 2 ).}

A semiconductor layer 126 is formed on the gate insulating layer 124 to correspond to the gate electrode 122 . The semiconductor layer 126 includes an active layer 126a made of intrinsic amorphous silicon and an ohmic contact layer 126b made of amorphous silicon doped with impurities. Alternatively, the semiconductor layer 126 may be a single layer made of an oxide semiconductor.

Source and drain electrodes 128 and 129 are formed on the semiconductor layer 126 . The source and drain electrodes 128 and 129 are spaced apart from the top of the semiconductor layer 126 , and the ohmic contact layer 126b is the source. and the drain electrodes 128 and 129 have the same shape. An active layer 126a is exposed between the source and drain electrodes 128 and 129 , and the active layer 126a is the same as the source and drain electrodes 128 and 129 except between the source and drain electrodes 128 and 129 . can have a shape.

The gate electrode 122 , the semiconductor layer 126 , the source electrode 128 , and the drain electrode 129 form a thin film transistor T, and the active layer 126a exposed between the source and drain electrodes 128 and 129 . ) is a channel of the thin film transistor T.

In addition, the data lines (DL in FIGS. 1A and 1B) are formed on the same layer as the source and drain electrodes 128 and 129 and made of the same material. The data line (DL in FIGS. 1A and 1B ) extends along a second direction perpendicular to the first direction, and intersects the gate line (GL in FIGS. 1A and 1B ) to define the pixel region P. The data line (DL of FIGS. 1A and 1B ) is connected to the source electrode 128 , and a dummy semiconductor pattern having the same structure as the semiconductor layer 126 may be formed under the data line ( DL of FIGS. 1A and 1B ).

A first passivation layer 130 is formed on the source and drain electrodes 128 and 129 and the data line (DL in FIGS. 1A and 1B ). The first passivation layer 130 may also be formed in the non-display area NDA, and the first passivation layer 130 may be formed of an inorganic insulating material of silicon _{oxide (SiO 2 ) or silicon nitride (SiNx).}

A second protective layer 132 is formed on the first protective layer 130 . The second passivation layer 132 has a flat surface and has a drain contact hole 132a exposing the drain electrode 129 together with the first passivation layer 130 . The second passivation layer 132 may also be formed in the non-display area NDA, and the second passivation layer 132 is formed of an organic insulating material such as benzocyclobutene (BCB) or photo acryl. can be

Here, one of the first protective layer 130 and the second protective layer 132 may be omitted.

A pixel electrode 134 and a common electrode 136 are formed in the pixel region P on the second passivation layer 132 . The pixel electrode 134 contacts the drain electrode 129 through the drain contact hole 132a. The common electrode 136 is connected to the common wiring and is alternately disposed to be spaced apart from the pixel electrode 134 . The pixel electrode 134 and the common electrode 136 may be formed of a transparent conductive material such as indium tin oxide or indium zinc oxide, or molybdenum or It may be formed of a metallic material such as titanium or an alloy thereof.

A black matrix 142 is formed in the display area DA of the inner surface of the second substrate 140 . The black matrix 142 has an opening corresponding to the pixel region P, and is formed to correspond to the gate wiring (GL in FIGS. 1A and 1B), the data wiring (DL in FIGS. 1A and 1B), and the thin film transistor T. can

In addition, an outer black matrix 146 is formed in the non-display area NDA of the inner surface of the second substrate 140 . The outer black matrix 146 has a polygonal shape of five or more planes.

A color filter layer 144 is formed under the black matrix 142 to correspond to the opening of the black matrix 142 . The color filter layer 144 includes red, green, and blue color filters, and one color filter corresponds to one pixel area P and is sequentially and repeatedly arranged. The color filter layer 144 may also be partially formed under the outer black matrix 146 of the non-display area NDA.

Here, although the structure in which the color filter layer 144 is formed on the second substrate 140 has been described, the color filter layer may be formed on the first substrate 120 . That is, in the display panel according to another embodiment of the present invention, a color filter on thin film transistor (COT) or a color filter in which a color filter layer is formed on the thin film transistor T on the first substrate 120 . It may have a color filter on array (COA) structure.

The COT structure can increase the aperture ratio by reducing the bonding margins of the first and second substrates 120 and 140 . In this case, the black matrix 142 of the display area DA may be omitted, and accordingly, the aperture ratio may be further increased. can be raised

An overcoat layer (not shown) may be formed under the color filter layer 144 to protect and planarize the color filter layer 144 .

Meanwhile, although not shown, the first alignment layer is formed on the pixel electrode 134 and the common electrode 136 of the first substrate 120 , and the color filter layer 144 or the overcoat layer of the second substrate 140 is lower A second alignment layer is formed. The first alignment layer and the second alignment layer are rubbed or photo-oriented in a predetermined direction, so that the surfaces of the first alignment layer and the second alignment layer have orientation.

The liquid crystal layer 150 is positioned in the display area DA between the first alignment layer and the second alignment layer. The liquid crystal molecules of the liquid crystal layer 150 have an initial arrangement state according to the alignment directions of the first and second alignment layers.

In the non-display area NDA between the first substrate 120 and the second substrate 140 , a seal pattern 160 is formed to overlap the outer black matrix 146 . The seal pattern 160 includes the liquid crystal layer 150 . ) and prevents leakage of the liquid crystal layer 150 . The seal pattern 160 may have a narrower width than the outer black matrix 146 .

Here, the gate insulating layer 124 is formed up to the lower portion of the seal pattern 160 , so that the seal pattern 160 overlaps the gate insulating layer 124 , and the gate insulating layer 124 on the first substrate 120 and the second substrate Although shown as being positioned between the outer black matrices 146 on 140 , the first alignment layer is formed on the gate insulating layer 124 , and the second alignment layer is formed on the outer black matrix 146 , so that the seal pattern 160 is formed. ) may be positioned between the first and second alignment layers.

Meanwhile, since the gate insulating layer 124 is removed from the lower portion of the seal pattern 160 , the seal pattern 160 may not overlap the gate insulating layer 124 . In this case, the seal pattern 160 is formed between the first substrate 120 and the first substrate 120 . It may be positioned between the outer black matrices 146 of the second substrate 140 .

In addition, since the first protective layer 130 is removed from the lower portion of the seal pattern 160 , the seal pattern 160 does not overlap the first protective layer 130 , but the first protective layer 130 does not overlap the seal pattern 160 . It is formed to the bottom so that the seal pattern 160 may overlap the first protective layer 130 .

The wearable device according to an embodiment of the present invention attaches the driving circuit to the display panel 110 in a side bonding method, thereby reducing the bezel width and making the bezel width uniform.

3A and 3B are cross-sectional views schematically illustrating a wearable device according to an embodiment of the present invention, wherein FIG. 3A shows a gate driver and FIG. 3B shows a data driver.

First, as shown in FIG. 3A , a gate link line GLL is formed in the non-display area NDA on the first substrate 120 . The gate link line GLL is connected to the gate line GL of the display area DA and extends to one edge of the first substrate 120 . That is, the side surface of the gate link line GLL is exposed in the direction of the first side surface of the first substrate 120 .

A gate pad GP is connected to one end of the gate link line GLL, and the gate pad GP is formed to protrude outward from a side surface of the first substrate 120 .

The gate pad GP may be formed by screen printing silver paste on the side surface of the display panel 110 after completing the display panel 110 , and It may have a cross-sectional area greater than the cross-sectional area.

Meanwhile, a common link line (not shown) may be formed on the same layer as the gate link line GLL and made of the same material, and a common pad (not shown) connected to the common link line in the same manner as the gate pad GP. ) can be formed.

Like the gate line GL, the gate insulating layer 124 is formed on the gate link line GLL. Alternatively, the gate insulating layer 124 may be partially removed to expose the gate link line GLL.

A gate driver 170 is attached to the first side of the display panel 110 . The gate driver 170 includes a first base film 172 and a gate driving circuit 174 , and a first signal line (not shown) is formed on the first base film 172 . One end of the first signal line is connected to the gate driving circuit 174 , and the other end is connected to the gate pad GP.

The gate driver 170 may be attached to the side surface of the display panel 110 through an anisotropic conductive film (ACF) (not shown), and the other end of the first signal wire is a conductive ball inside the anisotropic conductive film. (not shown) may be electrically connected to the gate pad GP.

Meanwhile, as shown in FIG. 3B , a data link line DLL is formed in the non-display area NDA on the first substrate 120 . The data link line DLL is connected to the data line DL of the display area DA and extends to one edge of the first substrate 120 . That is, the side surface of the data link line DDL is exposed in the direction of the second side surface of the first substrate 120 .

A data pad DP is connected to one end of the data link line DLL, and the data pad DP is formed to protrude outward from a side surface of the first substrate 120 .

The data pad DP may be formed by screen printing silver paste on the side surface of the display panel 110 after completing the display panel 110 , and It may have a cross-sectional area greater than the cross-sectional area.

Like the data line DL, the first passivation layer 130 is formed on the data link line DLL, and the first passivation layer 130 is partially removed to expose the data link line DLL. Alternatively, the first passivation layer 130 may extend to the lower portion of the seal pattern 160 to completely cover the data link line DLL.

The data driver 180 is attached to the second side of the display panel 110 . The data driver 180 includes a second base film 182 and a data driver circuit 184 , and a second signal line (not shown) is formed on the second base film 182 . One end of the second signal line is connected to the data driving circuit 184 , and the other end is connected to the data pad DP.

The data driver 180 may be attached to the side surface of the display panel 110 through an anisotropic conductive film (ACF) (not shown), and the other end of the second signal line is a conductive ball inside the anisotropic conductive film. may be electrically connected to the data pad DP through

Meanwhile, although not shown, a first polarizing plate and a second polarizing plate are respectively attached to the outer surface of the first substrate 120 and the outer surface of the second substrate 140 , and the light transmission axis of the first polarizing plate is the light transmission axis of the second polarizing plate. perpendicular to

As such, in the wearable device according to the embodiment of the present invention, the display panel 110 has a polygonal shape having five or more surfaces, and the gate driver 170 and the data driver 180 are disposed on the side surface of the display panel 110 . Since it is attached, it is possible to implement a round wearable device having a narrow bezel width and uniformity compared to a wearable device using a rectangular display panel.

As mentioned above, the gate pad GP and the data pad DP may be formed by screen-printing a silver paste after the display panel 110 is completed. This process will be described in more detail with reference to the drawings. .

4 is a flowchart illustrating a manufacturing process of a display device according to an embodiment of the present invention, and FIGS. 5A and 5B are schematic diagrams of the display device in the pad forming step of the manufacturing process of the display device according to the embodiment of the present invention. 6 is a cross-sectional view schematically illustrating the display device in the step of applying a back resin during the manufacturing process of the display device according to an embodiment of the present invention, and FIG. 7 is a cross-sectional view of the display device according to an embodiment of the present invention. It is a cross-sectional view schematically illustrating a display device in a side sealing step during a manufacturing process.

As shown in FIG. 4 , in the first step ST1 , the mother glass is cut to form the cells of the display panel having the polygonal shape of FIG. 1A or 1B . In this case, a plurality of cells may be formed on the mother substrate, and in this case, each cell is cut.

Next, in the second step ST2, the cut side surface of the display panel is polished to make the side surface of the display panel uniform, thereby controlling the roughness and straightness of the side surface of the display panel. This polishing step may be omitted.

Meanwhile, after the cutting step ST1 and/or after the polishing step ST2 , a cleaning process for removing the generated impurities may be further added.

Next, in a third step ST3, a gate pad and a data pad are formed on the side surface of the display panel. In this case, each of the gate pad and the data pad may be formed by a screen printing method by disposing a mask having an opening corresponding to the pad on a side surface of the display panel and applying Ag paste.

The gate pad and data pad thus formed have the shapes shown in FIGS. 5A and 5B . Here, FIG. 5A is a cross-sectional view of a display device according to an embodiment of the present invention, and FIG. 5B is a view showing a side surface of the display device according to an embodiment of the present invention.

That is, as shown in FIGS. 5A and 5B , a link line SLL is formed on the inner surface of the first substrate 120 , and one end of the link line SLL extends to the edge of the first substrate 120 , The pad SP is formed to protrude from the side surface of the first substrate 120 and is in contact with one end of the link line SLL. The pad SP has a larger cross-sectional area than the link line SLL, and the pad SP may extend to the side surface of the second substrate 140 .

Here, the link line SLL may be a gate link line or a data link line, and the pad may be a gate pad or a data pad. Alternatively, the link line SLL may be a common link line, and the pad may be a common pad.

Next, in the fourth step ST4 , the first and second polarizers are attached to the lower portion of the first substrate ( 120 in FIG. 5A ) and the upper portion of the second substrate ( 140 in FIG. 5A ), respectively. In this case, the light transmission axis of the first polarizing plate is perpendicular to the light transmission axis of the second polarizing plate.

Next, in a fifth step ST5 , the gate driver and the data driver are attached to the side surface of the display panel 110 . Referring to FIG. 6 , a driving unit 190 including a base film 190a, a driving circuit 190b, and a signal wiring 190c is disposed on a side surface of the display panel 110, and the signal wiring 190c is connected to a pad ( SP) to be connected. At this time, an anisotropic conductive film (not shown) is disposed between the signal wiring 190c and the pad SP, and pressure is applied to cause the signal wiring 190c to pass through a conductive ball (not shown) inside the anisotropic conductive film. (SP) can be connected.

Here, the driver 190 may be a gate driver or a data driver.

Next, in the sixth step (ST6), a backing resin is applied to the lower part of the pad. Referring to FIG. 6 , the back resin 192 is applied between the first substrate 120 under the pad SP and the driving unit 190 to protect the connection between the pad SP and the signal wiring 190c. Also in contact with the rear surface of the first substrate 120 , the adhesive force of the driving unit 190 to the display panel 110 is increased.

Next, in a seventh step ST7, a printed circuit board including a plurality of electronic components is attached to the driving unit.

Next, in an eighth step ST8, a side sealing material is applied to seal the side surface of the display device. Referring to FIG. 7 , the side sealing material 194 is applied between the second substrate 140 and the driving unit 190 on the pad SP, and the upper portion of the second substrate 140 and one end of the driving unit 190 and The outer surface is covered to protect the connection between the pad SP and the signal wiring 190c, and the adhesion of the driving unit 190 to the display panel 110 is increased.

Here, when the side sealing material 194 is applied, the back resin 192 may also be applied together.

Accordingly, the display apparatus for a wearable device according to an embodiment of the present invention can be completed.

As described above, the relationship between the driving unit attached by the side bonding method and the polygonal display panel will be described with reference to the drawings.

8A and 8B are diagrams schematically illustrating a connection relationship between a display panel, a gate driver, and a data driver of a wearable device according to an embodiment of the present invention.

As shown in FIG. 8A , the display panel 110 of the wearable device according to the embodiment of the present invention has a hexagonal shape having first to sixth surfaces S1, S2, S3, S4, S5, and S6. can The first to sixth surfaces S1, S2, S3, S4, S5, and S6 are sequentially arranged and connected to each other.

A gate line GL in a first direction and a data line DL in a second direction are formed in a display area of the display panel 110 , and a gate link line GLL connected to the gate line GL and a gate link line GLL connected to the gate line GL are formed in the non-display area. A data link line DLL connected to the data line DL is formed.

For convenience, in the drawing, the gate link line GLL and the data link line DLL are illustrated as extending outward from the side surface of the display panel 110 .

A first data driver 180a is attached to the first surface S1 of the display panel 110 , a second data driver 180b is attached to the second surface S2 , and a second data driver 180b is attached to the third surface S3 of the display panel 110 . A first gate driver 170a is attached, a third data driver 180c is attached to the fourth surface S4 , and a second gate driver 170b is attached to the sixth surface S6 . The first and second gate drivers 170a and 170b and the first to third data drivers 180a, 180b, and 180c are attached to the side surface of the display panel 110 by a side bonding method.

The first and second gate drivers 170a and 170b are electrically connected to the gate line GL through the gate link line GLL, and the first to third data drivers 180a, 180b and 180c are connected to the data link line. It is electrically connected to the data line DL through the DLL.

Although not shown, a gate pad is positioned between the first and second gate drivers 170a and 170b and the gate link line GLL, and the first to third data drivers 180a, 180b and 180c and the data link line DLL ), the data pad is located.

As described above, when the display panel 110 of the wearable device according to the embodiment of the present invention has a hexagonal shape, the two gate drivers 170a and 170b and the three data drivers 180a, 180b and 180c are connected to the display panel ( A signal may be applied to the gate line GL and the data line DL by connecting to the side of the 110 in a side bonding method.

Meanwhile, as shown in FIG. 8B , the display panel 110 of the wearable device according to the embodiment of the present invention has first to eighth surfaces S1, S2, S3, S4, S5, S6, S7, and S8. It may have an octagonal shape with The first to eighth surfaces S1, S2, S3, S4, S5, S6, S7, and S8 are sequentially arranged and connected to each other.

A gate line GL in a first direction and a data line DL in a second direction are formed in a display area of the display panel 110 , and a gate link line GLL connected to the gate line GL and a gate link line GLL connected to the gate line GL are formed in the non-display area. A data link line DLL connected to the data line DL is formed.

For convenience, in the drawing, the gate link line GLL and the data link line DLL are illustrated as extending outward from the side surface of the display panel 110 .

A first data driver 180a is attached to the first surface S1 of the display panel 110 , a second data driver 180b is attached to the second surface S2 , and a second data driver 180b is attached to the third surface S3 of the display panel 110 . A first gate driver 170a is attached, a second gate driver 170b is attached to the fourth surface S4, a third data driver 180c is attached to the fifth surface S5, and a seventh surface ( A third gate driver 170c is attached to S7 . The first to third gate drivers 170a, 170b, and 170c and the first to third data drivers 180a, 180b, and 180c are attached to the side surface of the display panel 110 by a side bonding method.

The first to third gate drivers 170a, 170b, and 170c are electrically connected to the gate line GL through the gate link line GLL, and the first to third data drivers 180a, 180b, and 180c are connected to the data It is electrically connected to the data line DL through the link line DLL.

Although not shown, a gate pad is positioned between the first to third gate drivers 170a, 170b, and 170c and the gate link line GLL, and the first to third data drivers 180a, 180b, 180c and the data link line A data pad is located between (DLL).

As described above, when the display panel 110 of the wearable device according to the embodiment of the present invention has an octagonal shape, three gate drivers 170a, 170b, and 170c and three data drivers 180a, 180b, and 180c are displayed. A signal may be applied to the gate line GL and the data line DL by connecting to the side of the panel 110 in a side bonding method.

9A and 9B are diagrams schematically illustrating a display panel and a case of a wearable device according to an embodiment of the present invention.

As shown in FIGS. 9A and 9B , the display panel 110 of the wearable device according to the embodiment of the present invention has a polygonal shape having five or more faces, and may have a hexagonal or octagonal shape, for example.

A case 112 having an opening 112a covers an edge of the display panel 110 , and an image of the display panel 110 is displayed outside through the opening 112a.

The case 112 is round, for example, circular, and has an inner surface 112b and an outer surface 112c. The inner surface 112b of the case 112 is in contact with inner surfaces of the outer black matrix 146 of the display panel 110 , and the outer surface 112c of the case 112 is in contact with the outer black matrix 146 of the display panel 110 . 146) is in contact with the vertices.

In the present invention, the width of the case 112, that is, the distance between the inner surface 112b and the outer surface 112c, can be minimized by bringing the driving circuit (not shown) into contact with the display panel 110 in a side bonding method. have. Accordingly, a round wearable device having a uniform and narrow bezel width may be implemented.

Although the liquid crystal panel is used as the display panel in the embodiment of the present invention, an organic light emitting display panel may be used as the display panel.

Meanwhile, a single driver including both the gate driver and the data driver may be attached to the display panel of the present invention.

10A and 10B are diagrams schematically illustrating a connection relationship between a display panel and a single driver of a wearable device according to another embodiment of the present invention.

As shown in FIG. 10A , the display panel 210 of the wearable device according to another embodiment of the present invention has a hexagonal shape having first to sixth surfaces S1, S2, S3, S4, S5, and S6. can have The first to sixth surfaces S1, S2, S3, S4, S5, and S6 are sequentially arranged and connected to each other.

A gate line GL in a first direction and a data line DL in a second direction are formed in the display area of the display panel 210 , and are connected to the surgical black matrix 246 and the gate line GL in the non-display area. A gate link line GLL and a data link line DLL connected to the data line DL are formed.

One end of the gate link line GLL is connected to the gate line GL, and the other end is located on the first surface S1 of the display panel 210 . In addition, one end of the data link line DLL is connected to the data line DL, and the other end is located on the first surface S1 of the display panel 210 .

For convenience, in the drawing, the other ends of the gate link line GLL and the data link line DLL are illustrated as extending to the outside of the side surface of the display panel 210 .

In addition, although it is illustrated in the drawing that the gate link line GLL and some data link lines DLL are formed outside the outer black matrix 246, this is for convenience of illustration and actually all gate link lines GLL. and all data link lines DLL are located in the region where the outer black matrix 246 is formed.

Meanwhile, a single driver 220 is attached to the first surface S1 of the display panel 210 and is connected to the other ends of the gate link line GLL and the data link line DLL. The single driver 220 is attached to the side surface of the display panel 210 by a side bonding method.

The single driver 220 is electrically connected to the gate line GL through the gate link line GLL, and is electrically connected to the data line DL through the data link line DLL.

Although not shown, a gate pad is positioned between the single driver 220 and the gate link line GLL, and a data pad is positioned between the single driver 220 and the data link line DLL.

As mentioned above, the gate pad and the data pad may be formed by screen printing a silver paste.

As described above, in the display panel 210 of the wearable device having a hexagonal shape according to another embodiment of the present invention, the gate pad and the data pad are formed on the first surface S1 of the display panel 210, and a single driver ( A signal may be applied to the gate line GL and the data line DL by connecting 220 to the first surface S1 of the display panel 210 in a side bonding method.

Meanwhile, as shown in FIG. 10B , the display panel 210 of the wearable device according to another embodiment of the present invention has first to eighth surfaces S1, S2, S3, S4, S5, S6, S7, S8. ) may have an octagonal shape with The first to eighth surfaces S1, S2, S3, S4, S5, S6, S7, and S8 are sequentially arranged and connected to each other.

A gate line GL in a first direction and a data line DL in a second direction are formed in the display area of the display panel 210 , and are connected to the surgical black matrix 246 and the gate line GL in the non-display area. A gate link line GLL and a data link line DLL connected to the data line DL are formed.

One end of the gate link line GLL is connected to the gate line GL, and the other end is located on the first surface S1 of the display panel 210 . In addition, one end of the data link line DLL is connected to the data line DL, and the other end is located on the first surface S1 of the display panel 210 .

For convenience, in the drawing, the other ends of the gate link line GLL and the data link line DLL are illustrated as extending outward from the side surface of the display panel 210 .

In addition, although it is illustrated in the drawing that the gate link line GLL and some data link lines DLL are formed outside the outer black matrix 246, this is for convenience of illustration and actually all gate link lines GLL. and all data link lines DLL are located in the region where the outer black matrix 246 is formed.

Meanwhile, a single driver 220 is attached to the first surface S1 of the display panel 210 and is connected to the gate link line GLL and the data link line DLL. The single driver 220 is attached to the side surface of the display panel 210 by a side bonding method.

The single driver 220 is electrically connected to the gate line GL through the gate link line GLL, and is electrically connected to the data line DL through the data link line DLL.

Although not shown, a gate pad is positioned between the single driver 220 and the gate link line GLL, and a data pad is positioned between the single driver 220 and the data link line DLL.

As mentioned above, the gate pad and the data pad may be formed by screen printing a silver paste.

As described above, in the display panel 210 of the octagonal wearable device according to another embodiment of the present invention, a gate pad and a data pad are formed on the first surface S1 of the display panel 210 , and a single driving unit 220 is formed. may be connected to the first surface S1 of the display panel 210 by a side bonding method to apply a signal to the gate line GL and the data line DL.

Since the wearable device according to another exemplary embodiment of the present invention includes a single driving unit, it is possible to reduce costs by reducing the number of parts and processes.

Although the above has been described with reference to the preferred embodiment of the present invention, those skilled in the art can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

110, 210: display panel
GL: gate wiring DL: data wiring
P: pixel area DA: display area
NDA: non-display area 120: first substrate
122: gate electrode 124: gate insulating film
126: semiconductor layer 128: source electrode
129: drain electrode 130: first protective layer
132: second protective layer 132a: drain contact hole
134: pixel electrode 136: common electrode
140: second substrate 142: black matrix
144: color filter layer 146, 246: outer black matrix
150: liquid crystal layer 160: seal pattern
220: single drive unit

Claims (9)

a polygonal display panel comprising a first substrate and a second substrate, and a liquid crystal layer between the first and second substrates, the display panel having first to nth sides (n is a natural number equal to or greater than 5);
A first driver attached to a first side of the display panel and supplying a data voltage, a gate signal, or a data voltage and a gate signal
includes,
wherein the display panel includes a first pad, wherein the first pad is formed to protrude from the first side surface and is in contact with the first driving unit;
The first pad is a wearable device in contact with a side surface of the first substrate and a side surface of the second substrate.
According to claim 1,
A display area and a non-display area are defined in the display panel;
A first wiring is formed in the display area,
A first link line connected to the first line and one end is formed in the non-display area;
The other end of the first link line extends to the first side of the display panel and is connected to the first pad.
3. The method of claim 1 or 2,
The first pad is a wearable device, characterized in that formed of a silver paste.
3. The method of claim 2,
The display panel is
a second wiring formed in the display area;
a second link line formed in the non-display area and having one end connected to the second line;
It characterized in that it further comprises a second pad formed to protrude from the first side, connected to the other end of the second link line, and in contact with the first driving part,
The first pad transmits any one of a data voltage and a gate signal, and the second pad transmits the other one of the data voltage and the gate signal.
5. The method of claim 4,
Wherein n is a wearable device, characterized in that 6 or 8.
3. The method of claim 2,
wherein n is 6,
a second driving unit attached to a second side surface of the display panel;
a third driving unit attached to a third side surface of the display panel;
a fourth driving unit attached to a fourth side surface of the display panel;
a fifth driving unit attached to the sixth side of the display panel
further comprising,
The display panel may include a second pad protruding from the second side surface and contacting the second driving unit, a third pad protruding from the third side surface and contacting the third driving unit, and the fourth pad It further comprises a fourth pad protruding from the side surface and contacting the fourth driving unit, and a fifth pad formed protruding from the sixth side surface and contacting the fifth driving unit,
The wearable device of claim 1, wherein the first, second, and fourth drivers are data drivers supplying a data voltage, and the third and fifth drivers are gate drivers supplying gate signals.
3. The method of claim 2,
wherein n is 8;
a second driving unit attached to a second side surface of the display panel;
a third driving unit attached to a third side surface of the display panel;
a fourth driving unit attached to a fourth side surface of the display panel;
a fifth driving unit attached to a fifth side of the display panel;
A sixth driving unit attached to the seventh side of the display panel
further comprising,
The display panel may include a second pad protruding from the second side surface and contacting the second driving unit, a third pad protruding from the third side surface and contacting the third driving unit, and the fourth pad a fourth pad protruding from the side surface and contacting the fourth driving part; a fifth pad protruding from the fifth side surface and contacting the fifth driving part; 6 Further comprising a sixth pad in contact with the driving unit,
The wearable device according to claim 1, wherein the first, second, and fifth drivers are data drivers supplying data voltages, and the third, fourth, and sixth drivers are gate drivers supplying gate signals.
According to claim 1,
A wearable device further comprising a backing resin applied between a side surface of the first substrate and an inner surface of the first driving unit, wherein the backing resin is in contact with one side of the first pad and the backside of the first substrate.
9. The method of claim 8,
and a side sealing material applied between a side surface of the second substrate and an inner surface of the first driving part, wherein the side sealing material is in contact with the other side of the first pad and an upper surface of the second substrate, and the first driving part A wearable device covering one end and an outer surface of the first driving unit.

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