KR20170125165A - Display device - Google Patents

Abstract

The present invention provides a display device which forms an electrostatic discharge path on a side surface, omits an AG dotting pad, reduces contact resistance of an AG dot, and improves reliability. According to an embodiment of the present invention, the display device comprises a display panel of a pad part, a conductive layer, an electric discharge line, and conductive medium. The display panel includes a liquid crystal layer interposed between a TFT array substrate and a color filter substrate. The conductive layer is disposed on the color filter substrate, and the electric discharge line is disposed on an edge of the TFT array substrate. The conductive medium contacts side surfaces of the conductive layer and the electric discharge line at a side surface of the display panel.

Description

Display device {DISPLAY DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device capable of forming a static discharge path on a side surface of a display panel.

A liquid crystal display displays an image by adjusting the light transmittance of a liquid crystal using an electric field. Such a liquid crystal display device is roughly divided into a vertical electric field type and a horizontal electric field type in accordance with the direction of the electric field driving the liquid crystal.

In a vertical electric field type liquid crystal display device, a common electrode formed on an upper substrate and a pixel electrode formed on a lower substrate are arranged so as to face each other, and a liquid crystal of a TN (Twisted Nematic) mode is driven by a vertical electric field formed therebetween. Such a vertical electric field type liquid crystal display device has a disadvantage that the aperture ratio is large, but the viewing angle is narrow by about 90 degrees.

A horizontal electric field type liquid crystal display device drives a liquid crystal in an in plane switching (IPS) mode by a horizontal electric field between a pixel electrode and a common electrode arranged in parallel on a lower substrate. Such a horizontal electric field type liquid crystal display device has a wide viewing angle advantage. On the other hand, the horizontal electric field type liquid crystal display device has a disadvantage that the aperture ratio is lower than that of the vertical electric field type liquid crystal display device.

FIG. 1 is a plan view showing a structure of a conventional liquid crystal display device, and FIG. 2 is a cross-sectional view of the liquid crystal display device shown in FIG. 1, taken along a cutting line I-I '.

1 and 2, a liquid crystal display device according to the related art includes a display panel (LCD) in which a TFT array substrate TSUB and a color filter substrate CSUB are bonded together by a sealant SL with a liquid crystal layer LC therebetween DP). A back-side ITO (LI) for electrostatic discharge is placed on the color filter substrate (CSUB). The TFT array substrate TSUB includes a pad portion PAD in a region other than the region where the color filter substrate CSUB is bonded. A discharge line ESL connecting the driving IC D-IC, the AG driving pad AGP, the discharge pad ESP and the AG driving pad AGP and the discharge pad ESP is disposed in the pad portion PAD do. A flexible circuit board (FPC) is connected to the pad portion PAD.

AG dots AGD connecting the back surface ITO (LI) of the color filter substrate CSUB and the AG dipping pad AGP of the TFT array substrate TSUB are arranged. Therefore, when static electricity flows in the upper surface of the display panel DP, the backlight ITO (LI), the AG dot (AGD), the AG driving pad AGP, the discharge line ESL, the discharge pad ESP, ) To the ground.

In the liquid crystal display device described above, an AG dotting pad to which AG dots are applied to a TFT array substrate is indispensable. Particularly, since a liquid crystal display device of an in-cell touch has a high resistance film coated on a color filter substrate, it is advantageous to have a plurality of AG-driving pads. However, there is a limitation in increasing the number of AG driving pads due to patterns for other purposes such as a lighting inspection pad, an alignment key, etc. in the pad portion of the TFT array substrate. In addition, in the model for cutting or machining the pads of the TFT array substrate, the area of the pads is reduced, thereby reducing the space for mounting the AG driving pad.

The present invention provides a display device capable of improving the reliability by reducing the contact resistance of the AG dot by omitting the AG driving pad by forming the electrostatic discharge passage on the side surface of the display panel.

In order to achieve the above object, a display device according to an embodiment of the present invention includes a display panel, a conductive layer, a discharge line, and a conductive medium. The display panel includes a liquid crystal layer interposed between the TFT array substrate and the color filter substrate. The conductive layer is disposed on the color filter substrate, and the discharge line is disposed on the edge of the TFT array substrate. The conductive medium contacts the side surfaces of the conductive layer and the discharge line at the side of the display panel.

In one example, the TFT array substrate includes a pad portion that does not overlap with the color filter substrate.

In one example, the conductive medium is spaced apart from the pad portion.

For example, the conductive medium surrounds the sides of the display panel.

For example, the conductive medium may be a dot or a line.

In one example, the discharge lines are arranged to surround the edges of the TFT array substrate.

In one example, the discharge lines are disposed on at least one edge of the TFT array substrate.

In one example, the TFT array substrate includes a gate line and a data line, and the discharge line is made of the same material as either the gate line or the data line.

In one example, the discharge line extends to the pad portion and is electrically connected to the flexible circuit board.

For example, the display panel is a deformed display panel.

In one example, the discharge line is disposed on one side of the TFT array substrate adjacent to the pad portion.

For example, the conductive medium is dot-shaped on the side of the display panel.

A display device according to an embodiment of the present invention forms a discharge line exposed on a side surface of a TFT array substrate and applies a conductive medium to a side surface of the display panel to connect the discharge line with the conductive layer formed on the color filter substrate. Therefore, there is an advantage that the pad portion can be reduced by eliminating the discharge pad formed in the conventional pad portion and forming the discharge path on the side surface of the display panel.

Further, in the display device of the present invention, since the conductive layer and the discharge line are connected to each other over the entire side of the display panel, the contact resistance across the conductive layer, the conductive medium, and the discharge line can be lowered to facilitate the discharge of static electricity.

Further, the display device of the present invention has an advantage that the display panel can be protected from external static electricity because the conductive medium is disposed over the side surface of the display panel.

1 is a plan view showing a structure of a conventional liquid crystal display device.
FIG. 2 is a cross-sectional view of the liquid crystal display shown in FIG. 1, taken along the cutting line I-I ';
3 is a block diagram showing a display device according to the present invention.
4 is a circuit diagram showing pixels of a display device;
5 is a plan view showing a structure of a display device according to the first embodiment of the present invention.
6 is a cross-sectional view of the display device according to the first embodiment of the present invention shown in FIG. 5, taken along the cutting line I-I '.
7 is a cross-sectional view of the display device according to the first embodiment of the present invention shown in Fig. 5, taken along a perforated line II-II '.
8 to 10 are plan views showing various structures of a display device according to the first embodiment of the present invention.
11 is a plan view showing a manufacturing process of a display device according to the first embodiment of the present invention.
12 is a plan view showing a structure of a display device according to a second embodiment of the present invention;
FIG. 13 is a cross-sectional view taken along the perforated line III-III 'of FIG. 12; FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Like reference numerals throughout the specification denote substantially identical components. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description, a detailed description of known technologies or configurations related to the present invention will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured.

Hereinafter, the technical features of the present invention will be described in detail with reference to preferred embodiments. It should be noted that the features of the present invention are not limited to the following embodiments.

FIG. 3 is a block diagram showing a display device according to the present invention, and FIG. 4 is a circuit diagram showing pixels of a display device.

3, a display device according to the present invention includes a display panel DP, a data driving circuit 102, a gate driving circuit 103, and a timing controller 101. [ A backlight unit for uniformly irradiating light to the liquid crystal display panel may be disposed below the liquid crystal display panel. The backlight unit may be implemented as a direct type backlight unit or an edge type backlight unit.

The display panel DP includes a TFT array substrate (or a first substrate) and a color filter substrate (or a second substrate) opposed to each other with a liquid crystal layer interposed therebetween. A pixel array for displaying video data is formed on the display panel DP. The pixel array includes pixels arranged in a matrix form by an intersection structure of the data lines and the gate lines to display video data. The pixels may be R pixels, G pixels, and B pixels. Neighboring pixels share the same data line. The liquid crystal cells of the pixels display an image of the video data by adjusting the amount of light transmission by the electric field difference between the data voltage applied to the pixel electrode and the common voltage applied to the common electrode. The common electrode is formed on the TFT array substrate together with the pixel electrode in a horizontal electric field driving method such as IPS (In Plane Switching) mode and FFS (Fringe Field Switching) mode.

The TFT array substrate is provided with pixel electrodes connected to data lines, gate lines, thin film transistors, and thin film transistors at a ratio of 1: 1, storage capacitors Cst (not shown) connected to pixel electrodes at 1: ) And the like. A black matrix and a color filter are formed on the color filter substrate of the display panel DP. In this embodiment, a common electrode is formed on the TFT array substrate. A polarizing plate is attached to each of the color filter substrate and the TFT array substrate of the display panel DP to form an alignment film for setting a pre-tilt angle of the liquid crystal.

The liquid crystal display panel DP applicable to the present invention can be implemented in any liquid crystal mode as well as the IPS mode and the FFS mode. The liquid crystal display device of the present invention can be implemented in any form such as a transmissive liquid crystal display device, a transflective liquid crystal display device, and a reflective liquid crystal display device. In a transmissive liquid crystal display device and a transflective liquid crystal display device, a backlight unit is required. The backlight unit may be implemented as a direct type backlight unit or an edge type backlight unit.

The data driving circuit 102 includes a plurality of source drive ICs. The output channels of the source drive ICs are connected 1: 1 to the data lines of the pixel array. Each of the source drive ICs receives digital video data from the timing controller 101. The source driver ICs convert the digital video data into positive / negative data voltages in response to a source timing control signal from the timing controller 101 and supply the data lines through the output channels to the data lines of the pixel array. The source drive ICs supply data voltages of opposite polarities to neighboring data lines under the control of the timing controller 101 and maintain the polarities of the data voltages supplied to the respective data lines to remain the same for one frame period , The polarity of the data voltage is inverted in the next frame period. Thus, the source drive ICs maintain the polarity of the data voltages the same for one frame period, substantially the same as the column-inversion method, and reverse the polarity of the data voltage at one frame period.

The gate driving circuit 103 sequentially supplies gate pulses to the gate lines of the pixel array in response to the gate timing control signal from the timing controller 101. [ The timing controller 101 supplies the digital video data input from the external system board 104 to the source drive ICs of the data driving circuit 102. The timing controller 101 generates a source timing control signal for controlling the operation timing of the data driving circuit 102 and a gate timing control signal for controlling the operation timing of the gate driving circuit 103.

4, the display device of the present invention converts digital video data into an analog data voltage based on a gamma reference voltage and supplies the analog data voltage to the data line DL and simultaneously supplies a scan pulse to the gate line GL, And charges the liquid crystal cell Clc with the data voltage. For this, a gate electrode of the thin film transistor is connected to the gate line GL, a source electrode thereof is connected to the data line DL, and a drain electrode of the thin film transistor is connected to the pixel electrode of the liquid crystal cell Clc and the storage capacitor Cst As shown in Fig. A common voltage Vcom is supplied to the common electrode of the liquid crystal cell Clc. The storage capacitor Cst1 functions to maintain the voltage of the liquid crystal cell Clc constant by charging the data voltage applied from the data line DL when the thin film transistor is turned on. When a scan pulse is applied to the gate line GL, the TFT is turned on to form a channel between the source electrode and the drain electrode to apply a voltage on the data line DL to the pixel electrode of the liquid crystal cell Clc Supply. At this time, the liquid crystal molecules of the liquid crystal cell Clc are changed in arrangement by the electric field between the pixel electrode and the common electrode to change the incident light. As a result, the display device of the present invention is operated.

The schematic configuration of the display device according to the present invention has been described above. Hereinafter, the structure of the display device will be described in detail.

≪ Embodiment 1 >

5 is a plan view showing the structure of a display device according to the first embodiment of the present invention. FIG. 6 is a cross-sectional view of the display device according to the first embodiment of the present invention shown in FIG. 5, taken along the cutting line I-I '. FIG. 7 is a cross-sectional view of the display device according to the first embodiment of the present invention shown in FIG. 5, taken along a perforated line II-II '. 8 to 10 are plan views showing various structures of the display device according to the first embodiment of the present invention. 11 is a plan view showing a manufacturing process of a display device according to the first embodiment of the present invention.

5 to 7, a display device according to the first embodiment of the present invention includes a TFT array substrate TSUB and a color filter substrate CSUB with a sealant SL (not shown) sandwiched by a liquid crystal layer And includes a cemented display panel DP.

A conductive layer (CTL) for discharging static electricity is placed on the color filter substrate (CSUB). The conductive layer (CTL) may be made of a material having high conductivity so that the conductive layer (CTL) is conductive for discharging static electricity and the light of the lower layer can be transmitted. The conductive layer CTL may be formed of a transparent conductive oxide such as ITO (Indium Tin Oxide), ITZO (Indium Tin Zinc Oxide), or IZO (Indium Zinc Oxide), or conductive nanoparticles such as carbon nanotubes, And a transparent conductive film containing nanowires or the like. The conductive layer (CTL) of the present invention is not limited thereto, and any material that is transparent and conductive can be used. In addition, the color filter substrate CSUB is provided with a black matrix BM for covering the driving circuits at the edges.

The TFT array substrate TSUB includes an array portion ARP which overlaps with the color filter substrate CSUB and a pad portion PAD which is a remaining region except for the array portion ARP. Here, the array unit ARP includes both a display area for displaying an image and a drive circuit for GIP or the like around the display area. The pad portion PAD includes a driving IC (D-IC), and a flexible circuit board (FPC) is connected.

The TFT array substrate (TSUB) of the present invention includes a discharge line (ESL) exposed on the side of the TFT array substrate (TSUB). More specifically, the TFT array substrate TSUB includes a discharge line ESL arranged to surround the edge of the TFT array substrate TSUB and includes an insulating film IL covering the discharge line ESL.

The discharge line ESL is for discharging static electricity to the outside and is arranged to be connected to the flexible circuit board FPC through the discharge pad ESP formed on the pad portion PAD while surrounding the edge of the TFT array substrate TSUB do. In the present invention, the discharge line (ESL) is made of the same material as any one of the gate line and the data line arranged in the TFT array substrate (TSUB). Particularly, the discharge line (ESL) is not formed of a transparent conductive oxide formed on the TFT array substrate (TSUB) but is formed of a metal, so that an advantage of lowering the contact resistance with other electrodes contacting the discharge line (ESL) have. The discharge line ESL overlaps with the black matrix BM formed on the color filter substrate CSUB and prevents external light from being reflected by the discharge line ESL to reduce the reflection feeling.

On the other hand, the present invention includes a conductive medium (AGD) in contact with the conductive layer CTL and the discharge line ESL at the side of the display panel DP. The conductive medium AGD connects the conductive layer CTL and the discharge line ESL to transfer the introduced static electricity from the conductive layer CTL to the discharge line ESL and emits the discharge to the outside. As the conductive medium (AGD) of the present invention, any material can be used as long as it is a conductive material, and preferably an Ag dot can be used.

The conductive medium AGD is located on the side of the display panel DP and is located in a region in which the conductive layer CTL and the discharge line ESL overlap. Therefore, the conductive medium AGD is disposed in the array portion ARP to which the TFT array substrate TSUB and the color filter substrate CSUB are attached. The conductive medium AG is not disposed in the pad portion PAD where only the TFT array substrate TSUB is located but is spaced apart. The conductive medium AGD is disposed on the side surface of the conductive layer CTL, on the side of the color filter substrate CSUB, on the side of the sealant SL, on the side of the insulating film IL, (ESL) and the side surfaces of the TFT array substrate (TSUB).

In this embodiment, the conductive medium AGD is disposed so as to surround three side surfaces of the side surface of the display panel DP except the side adjacent to the pad portion PAD. That is, the conductive medium (AGD) is arranged in a line shape. However, any arrangement can be applied as long as the conductive medium (AGD) is disposed on at least one of the three side surfaces.

Therefore, when static electricity flows in the upper surface of the display panel DP, it is discharged to the ground through the conductive layer CTL, the conductive medium AGD, the discharge line ESL, the discharge pad ESP and the flexible circuit board FPC .

The display device according to the first embodiment of the present invention forms a discharge line exposed on the side surface of the TFT array substrate and applies a conductive medium to the side surface of the display panel to connect the conductive layer and the discharge line formed on the color filter substrate. Therefore, there is an advantage that the pad portion can be reduced by eliminating the discharge pad formed in the conventional pad portion and forming the discharge path on the side surface of the display panel.

Further, in the display device of the present invention, since the conductive layer and the discharge line are connected to each other over the entire side of the display panel, the contact resistance across the conductive layer, the conductive medium, and the discharge line can be lowered to facilitate the discharge of static electricity.

Further, the display device of the present invention has an advantage that the display panel can be protected from external static electricity because the conductive medium is disposed over the side surface of the display panel.

Meanwhile, the display device according to the first embodiment of the present invention can realize the shapes of various conductive media and discharge lines.

Referring to FIG. 8, the display device according to the first embodiment of the present invention may be arranged such that a conductive medium AGD is dot-shaped.

More specifically, the conductive medium (AGD) is arranged in the form of a plurality of dots on the side surface of the display panel DP. At this time, the conductive medium AGD is disposed to surround the array portion ARP to which the TFT array substrate TSUB and the color filter substrate CSUB are attached, and is spaced apart from the pad portion PAD. In this embodiment, the conductive medium AGD is disposed so as to surround three side surfaces of the side surface of the display panel DP except the side adjacent to the pad portion PAD. However, any arrangement can be applied as long as the conductive medium (AGD) is disposed on at least one of the three side surfaces.

9 and 10, a display device according to the first embodiment of the present invention is a display device in which a discharge line ESL is formed on three sides of a side surface of a display panel DP except a side adjacent to the pad portion PAD And may be disposed on one or two sides of the side surface.

9, the discharge line ESL may be arranged so as to be exposed on one side of the display panel DP, and the conductive medium CTL may also be arranged on one side of the display panel DP corresponding to the discharge line ESL. Respectively. 10, the discharge line ESL may be arranged so as to be exposed on the two side surfaces of the display panel DP, and the conductive medium CTL may also be arranged on the display panel DP corresponding to the discharge line ESL DP).

Although FIGS. 9 and 10 show that the conductive mediums CTL are arranged in a line shape corresponding to the discharge lines ESL, the conductive mediums CTL may be arranged in a dot shape as shown in FIG. 8 . The present invention can variously combine various arrangements and shapes of the discharge line and the conductive medium shown in Figs. 7 to 10 described above.

The display device according to the first embodiment of the present invention described above can be manufactured as follows.

Referring to FIG. 11, a TFT array substrate (TSUB) and a color filter substrate (CSUB) are manufactured in a laminating state, and they are bonded together. A discharge line ESL is arranged on the TFT array substrate TSUB so as to surround the array portion ARP and a black matrix BM and a conductive layer CTL are arranged on the color filter substrate CSUB.

Subsequently, the TFT array substrate TSUB and the color filter substrate CSUB in the original state are scribed along the scribing line SCL, and separated into the cell display panel DP. At this time, a discharge line (ESL) is disposed on the scribing line (SCL) of some adjacent TFT array substrate (TSUB), but a discharge line (ESL) is cut by scribing, Line (ESL).

Therefore, the display device according to the first embodiment of the present invention shown in Fig. 7 described above is manufactured.

As described above, the display device according to the embodiment of the present invention forms a discharge line exposed on a side surface of a TFT array substrate and applies a conductive medium to a side surface of the display panel to connect the conductive layer formed on the color filter substrate and the discharge line . Therefore, there is an advantage that the pad portion can be reduced by eliminating the discharge pad formed in the conventional pad portion and forming the discharge path on the side surface of the display panel.

Further, in the display device of the present invention, since the conductive layer and the discharge line are connected to each other over the entire side of the display panel, the contact resistance across the conductive layer, the conductive medium, and the discharge line can be lowered to facilitate the discharge of static electricity.

Further, the display device of the present invention has an advantage that the display panel can be protected from external static electricity because the conductive medium is disposed over the side surface of the display panel.

≪ Embodiment 2 >

12 is a plan view showing a structure of a display device according to a second embodiment of the present invention. 13 is a cross-sectional view of the display device according to Fig. 12 taken along the perforated line III-III '.

12 and 13, the display device according to the second embodiment of the present invention includes a TFT array substrate TSUB and a color filter substrate CSUB with a sealant SL (not shown) sandwiched by a liquid crystal layer And includes a cemented display panel DP.

A conductive layer (CTL) for discharging static electricity is placed on the color filter substrate (CSUB). In addition, the color filter substrate CSUB is provided with a black matrix BM for covering the driving circuits at the edges. The TFT array substrate TSUB includes an array portion ARP which overlaps with the color filter substrate CSUB and a pad portion PAD which is a remaining region except for the array portion ARP. The pad portion PAD includes a driving IC (D-IC), and a flexible circuit board (FPC) is connected.

The second embodiment of the present invention is a display panel DP in which the display panel DP is not a rectangular shape and is a display panel DP having a curved surface on one side or an acute or obtuse angle where the edges of the pad portion PAD are not perpendicular to each other . In addition, the display panel DP of the present invention may be formed by grinding a rectangular display panel.

The TFT array substrate TSUB of the second embodiment of the present invention includes a discharge line ESL exposed on the side of the TFT array substrate TSUB. More specifically, the TFT array substrate TSUB includes a discharge line ESL disposed at one edge of the TFT array substrate TSUB, and includes an insulating film IL covering the discharge line ESL. The discharge line ESL is disposed at one edge of the TFT array substrate TSUB adjacent to the pad portion PAD and extended to the pad portion PAD of the TFT array substrate TSUB to be connected to the flexible circuit substrate FPC .

In this embodiment, the conductive medium (AGD) which is in contact with the conductive layer (CTL) and the discharge line (ESL) is disposed on the side surface of the display panel (DP). The conductive medium AGD is located on the side of the display panel DP and is located in a region in which the conductive layer CTL and the discharge line ESL overlap. Therefore, the conductive medium AGD is disposed in the array portion ARP to which the TFT array substrate TSUB and the color filter substrate CSUB are attached. The conductive medium AG is not disposed in the pad portion PAD where only the TFT array substrate TSUB is located but is spaced apart. The conductive medium AGD is disposed on the side surface of the conductive layer CTL, on the side of the color filter substrate CSUB, on the side of the sealant SL, on the side of the insulating film IL, (ESL) and the side surfaces of the TFT array substrate (TSUB).

In this embodiment, the conductive medium AGD is disposed in a dot shape on the side surface of the side surface of the display panel DP adjacent to the pad portion PAD. This is because the discharge line ESL formed in the TFT array substrate TSUB is exposed in a dot shape. Therefore, when static electricity flows in the upper surface of the display panel DP, it is discharged to the ground through the conductive layer CTL, the conductive medium AGD, the discharge line ESL, the discharge pad ESP and the flexible circuit board FPC .

A display device according to a second embodiment of the present invention forms a discharge line exposed on a side surface of a TFT array substrate and applies a conductive medium to a side surface of the display panel to connect the discharge line with a conductive layer formed on the color filter substrate. Therefore, there is an advantage that the pad portion can be reduced by eliminating the discharge pad formed in the conventional pad portion and forming the discharge path on the side surface of the display panel.

Also, in the display device of the present invention, discharge lines are exposed in a display panel of a non-rectangular shape, and the conductive layer and the discharge line are connected to each other to facilitate the discharge of static electricity.

Further, the display device of the present invention has an advantage that the display panel can be protected from external static electricity because the conductive medium is disposed over the side surface of the display panel.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

TSUB: TFT array substrate CSUB: Color filter substrate
DP: Display panel ESL: Discharge line
SL: sealant CTL: conductive layer
AGD: Conductive medium FPC: Flexible circuit board

Claims (12)

A display panel having a liquid crystal layer interposed between the TFT array substrate and the color filter substrate;
A conductive layer disposed on the color filter substrate;
A discharge line disposed at an edge of the TFT array substrate; And
And a conductive medium in contact with the side surfaces of the conductive layer and the discharge line at a side surface of the display panel. The method according to claim 1,
Wherein the TFT array substrate includes a pad portion that is not overlapped with the color filter substrate. 3. The method of claim 2,
And the conductive medium is spaced apart from the pad portion. The method of claim 3,
And the conductive medium surrounds the side surface of the display panel. 5. The method of claim 4,
Wherein the conductive medium has a dot shape or a line shape. The method according to claim 1,
And the discharge line is arranged so as to surround an edge of the TFT array substrate. The method according to claim 1,
Wherein the discharge line is disposed on at least one edge of the TFT array substrate. The method according to claim 1,
Wherein the TFT array substrate includes a gate line and a data line, and the discharge line is made of the same material as any one of the gate line and the data line. The method according to claim 1,
Wherein the discharge line extends to the pad portion and is electrically connected to the flexible circuit board. 3. The method of claim 2,
Wherein the display panel is a deformed display panel. 11. The method of claim 10,
Wherein the discharge line is disposed on one side of the TFT array substrate adjacent to the pad portion. 12. The method of claim 11,
Wherein the conductive medium has a dot shape at a side surface of the display panel.

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