KR102289831B1 - Display device - Google Patents

Abstract

An embodiment of the present invention relates to a borderless liquid crystal display device capable of discharging static electricity applied to a display panel by using a conductive tape and preventing deterioration of aesthetics by minimizing exposure of the conductive tape. A liquid crystal display according to an embodiment of the present invention includes a display panel, a backlight unit, a bottom cover, a support frame, and a conductive tape. The display panel includes a lower substrate and an upper substrate facing each other, signal lines and transistors are provided on one surface of the lower substrate, and a transparent electrode is provided on a surface opposite to one surface of the upper substrate facing the one surface of the lower substrate. will be prepared The backlight unit is disposed under the lower substrate and irradiates light to the display panel. The bottom cover surrounds the backlight unit. The support frame supports a lower surface of the lower substrate and surrounds a side surface of the bottom cover. The conductive tape is attached to the transparent electrode, the lower substrate, side surfaces of the support frame, and a lower surface of the bottom cover.

Description

Liquid crystal display device {DISPLAY DEVICE}

An embodiment of the present invention relates to a liquid crystal display device.

The liquid crystal display device has a tendency to gradually expand its application range due to the characteristics of light weight, thin shape, and low power consumption driving. Liquid crystal display devices are widely used in portable computers such as notebook PCs, office automation devices, audio/video devices, indoor and outdoor advertisement display devices, and the like. A liquid crystal display displays an image by controlling an electric field applied to a liquid crystal layer to modulate light incident from a backlight unit.

A liquid crystal display device includes a display panel, a backlight unit, driving circuits for driving the display panel, a guide member for guiding the display panel, and a case member for supporting the backlight unit. The liquid crystal display device may further include an external cover for enclosing the display panel and the backlight unit in order to be finished products such as a notebook computer, a monitor, and a TV.

Recently, in order to enhance aesthetics, the thickness of the liquid crystal display is getting thinner and the bezel area of the liquid crystal display is decreasing. The bezel area of the liquid crystal display is an edge of the liquid crystal display and corresponds to a non-display area covered by an external cover without displaying an image. Recently, in order to minimize the bezel area of the liquid crystal display, a borderless liquid crystal display device in which a top case covering the upper edge of the liquid crystal display panel is removed has been released.

On the other hand, the borderless liquid crystal display device has a disadvantage in that it is vulnerable to external static electricity because the top case is removed. Therefore, in a borderless liquid crystal display device, it is essential to attach a conductive tape to create an electrostatic discharge path.

In a conventional liquid crystal display device in which a top case is not removed, a conductive tape is attached and a top case is formed thereon, so that the conductive tape can be attached without exposure. However, in the case of the borderless method, since the top case covering the upper edge area of the display panel is removed, when the conductive tape is attached as in the prior art, the conductive tape is exposed as it is in the final product of the liquid crystal display device. may occur. In this case, since the aesthetic sense of the liquid crystal display device is deteriorated, improvement is required.

An embodiment of the present invention provides a borderless liquid crystal display capable of discharging static electricity applied to a display panel using a conductive tape.

In addition, an embodiment of the present invention provides a borderless liquid crystal display capable of preventing deterioration of aesthetics by minimizing exposure of the conductive tape.

A liquid crystal display according to an embodiment of the present invention includes a display panel, a backlight unit, a bottom cover, a support frame, and a conductive tape. The display panel includes a lower substrate and an upper substrate facing each other, signal lines and transistors are provided on one surface of the lower substrate, and a transparent electrode is provided on a surface opposite to one surface of the upper substrate facing the one surface of the lower substrate. will be prepared The backlight unit is disposed under the lower substrate and irradiates light to the display panel. The bottom cover surrounds the backlight unit. The support frame supports a lower surface of the lower substrate and surrounds a side surface of the bottom cover. The conductive tape is attached to the transparent electrode, the lower substrate, side surfaces of the support frame, and a lower surface of the bottom cover.

A liquid crystal display according to another embodiment of the present invention includes a display panel, a backlight unit, a bottom cover, a support frame, and a conductive tape. The display panel includes a lower substrate and an upper substrate facing each other, signal lines and transistors are provided on one surface of the upper substrate, and a transparent electrode is provided on one surface of the upper substrate and opposite to one surface of the lower substrate facing each other. will be prepared The backlight unit is disposed under the lower substrate and irradiates light to the display panel. The bottom cover surrounds the backlight unit. The support frame supports a lower surface of the lower substrate and surrounds a side surface of the bottom cover. The conductive tape includes a conductive tape for discharging static electricity applied to the transparent electrode to the bottom cover.

An embodiment of the present invention includes a transparent electrode of a display panel and a conductive tape attached to a bottom cover. As a result, according to the embodiment of the present invention, static electricity applied to the transparent electrode of the display panel can be discharged to the bottom cover.

In addition, in the embodiment of the present invention, the conductive tape is attached to the support frame and the bottom cover in a borderless manner, and the conductive tape attached to the support frame and the bottom cover is surrounded by using the protective cover. As a result, according to the embodiment of the present invention, the exposure of the conductive tape for discharging static electricity applied to the display panel can be minimized, and thus the aesthetics of the liquid crystal display can be prevented from being deteriorated.

1 is a perspective view showing a liquid crystal display device according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the liquid crystal display of FIG. 1 ;
Figure 3 is an enlarged perspective view of the protective cover of Figure 2;
4 is a cross-sectional view showing an example of I-I' of FIG. 1;
5 is a cross-sectional view showing an example of II-II' of FIG. 1;
6 is a cross-sectional view showing an example of III-III' of FIG.
7 is a cross-sectional view showing an example of IV-IV' of FIG. 1;
8 is a perspective view showing a liquid crystal display device according to another embodiment of the present invention.
9 is a cross-sectional view showing a first example of V-V' of FIG. 8;
10 is a cross-sectional view showing a first example of VI-VI' of FIG.
11 is a cross-sectional view showing a first example of VII-VII' of FIG. 8;
12 is a cross-sectional view showing a second example of V-V' of FIG. 8;
13 is a cross-sectional view showing a second example of VI-VI' of FIG. 8;
14 is a cross-sectional view showing a second example of VII-VII' of FIG. 8;

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are exemplary, and thus the present invention is not limited to the illustrated matters. Like reference numerals refer to like elements throughout. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

When 'including', 'having', 'consisting', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the case in which the plural is included is included unless otherwise explicitly stated.

In interpreting the components, it is interpreted as including an error range even if there is no separate explicit description.

In the case of a description of the positional relationship, for example, when the positional relationship of two parts is described as 'on', 'on', 'on', 'beside', etc., 'right' Alternatively, one or more other parts may be positioned between the two parts unless 'directly' is used.

In the case of a description of a temporal relationship, for example, 'immediately' or 'directly' when a temporal relationship is described with 'after', 'following', 'after', 'before', etc. It may include cases that are not continuous unless this is used.

Although the first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the spirit of the present invention.

"X-axis direction", "Y-axis direction" and "Z-axis direction" should not be construed only as a geometric relationship in which the relationship between each other is vertical, and is wider than within the range where the configuration of the present invention can function functionally. It may mean having a direction.

The term “at least one” should be understood to include all possible combinations from one or more related items. For example, the meaning of "at least one of the first, second, and third items" means 2 of the first, second, and third items as well as each of the first, second, or third items. It may mean a combination of all items that can be presented from more than one.

Each feature of the various embodiments of the present invention may be partially or wholly combined or combined with each other, technically various interlocking and driving are possible, and each of the embodiments may be implemented independently of each other or may be implemented together in a related relationship. may be

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a liquid crystal display device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the liquid crystal display of FIG. 1 . 3 is an enlarged perspective view of the protective cover of FIG. 2 . 4 is a cross-sectional view illustrating an example of line I-I' of FIG. 1 . 5 is a cross-sectional view illustrating an example of II-II′ of FIG. 1 . 6 is a cross-sectional view illustrating an example of III-III′ of FIG. 1 . 7 is a cross-sectional view showing an example of IV-IV' of FIG. 1 .

1 to 7 , a liquid crystal display according to an embodiment of the present invention includes a display panel 100 , a driving circuit unit for driving the display panel 100 , a backlight unit 300 , and a case member 400 . includes The liquid crystal display according to an embodiment of the present invention may be formed in a borderless manner in which a top case is removed.

The display panel 100 includes a lower substrate 110 , an upper substrate 120 , and a liquid crystal layer interposed between the lower substrate 110 and the upper substrate 120 . The lower substrate 110 and the upper substrate 120 may be formed of glass or plastic.

The lower substrate 110 may be a TFT substrate on which a thin film transistor (hereinafter, referred to as “TFT”) is formed. The size of the lower substrate 110 may be larger than the size of the upper substrate 120 . Accordingly, the conductive tapes 430 and the flexible source film 220 may be attached to one edge of the upper surface of the lower substrate 110 that is not covered by the upper substrate 120 . The upper surface of the lower substrate 110 corresponds to the surface facing the upper substrate 120 .

Signal lines such as data lines and gate lines crossing each other, and TFTs are provided on the upper surface of the lower substrate 110 of the display panel 100 . TFTs may be disposed in a region where the data lines and the gate lines intersect. Each of the TFTs supplies the data voltage of the data line to the pixel electrode in response to the gate signal of the gate line. The liquid crystal of the liquid crystal layer is driven by an electric field generated by a potential difference between the data voltage supplied to the pixel electrode and the common voltage supplied to the common electrode, and thus the amount of light transmitted from the backlight unit can be adjusted.

A black matrix and a color filter may be provided on a lower surface of the upper substrate 120 of the display panel 100 . A lower surface of the upper substrate 120 corresponds to a surface facing the lower substrate 110 . However, when the display panel 100 is formed by a color filter on TFT array (COT) method, the black matrix and the color filter may be provided on the upper surface of the lower substrate 110 . The common electrode is provided on the lower surface of the upper substrate 120 in a vertical electric field driving method such as TN (Twisted Nematic) mode and VA (Vertical Alignment) mode, IPS (In Plane Switching) mode and FFS (Fringe Field Switching) mode and It may be provided on the upper surface of the lower substrate 110 in the same horizontal electric field driving method. Also, an alignment layer for setting a pretilt angle of the liquid crystal may be formed on the upper surface of the lower substrate 110 and the lower surface of the upper substrate 120 of the display panel 100 .

A lower polarizing plate 140 is attached to a lower surface of the lower substrate 110 of the display panel 100 . The transparent electrode 130 is formed on the entire upper surface of the upper substrate 120 of the display panel 100 , and the upper polarizing plate 150 is attached on the transparent electrode 130 . The lower polarizing plate 140 may be formed in a size smaller than that of the lower substrate 110 , and the upper polarizing plate 150 may be formed in a size smaller than that of the upper substrate 120 . For this reason, the conductive tape 430 may be attached to the exposed transparent electrode 130 without being covered by the upper polarizing plate 150 .

The driving circuit unit includes a gate driving circuit, source driving circuits 210 , source flexible films 220 , a circuit board 230 , and a light source driving unit 240 .

The gate driving circuit supplies gate signals to the gate lines of the lower substrate 110 . When the gate driving circuit is implemented as a driving chip, it may be mounted on the gate flexible film in a chip on film (COF) method, and the gate flexible films are the lower substrate 110 not covered by the upper substrate 120 . ) can be attached to the edge of the upper surface. Alternatively, the gate driving circuit may be directly formed on the upper surface of the lower substrate 110 by a gate driver in panel (GIP) method. In this case, the gate flexible films may be omitted.

The source driving circuits 210 supply data voltages to the data lines of the lower substrate 110 . When each of the source driving circuits 210 is implemented as a driving chip, they may be mounted on the source flexible film 220 in a COF method. Alternatively, the source driving circuits 210 may be adhered to the upper surface of the lower substrate 110 by a chip on glass (COG) method or a chip on plastic (COP) method. The source flexible films 220 may be attached to one edge of the upper surface of the lower substrate 110 not covered by the upper substrate 120 and to the circuit board 230 . The circuit board 230 may be implemented as a printed circuit board.

The light source driver 240 includes a light source driver circuit 241 and a light source circuit board 242 . The light source driving circuit 240 supplies driving currents to the light sources 310 to emit light. The light source driving circuit 240 may be mounted on the light source circuit board 242 . Alternatively, the light source driving circuit 240 may be mounted on the circuit board 230 , and in this case, the light source circuit board 242 may be omitted.

The driving circuit unit may further include a timing control circuit and a control circuit board on which the timing control circuit is mounted. In this case, the control circuit board may be connected to the circuit board 230 through a predetermined flexible cable.

The backlight unit 300 includes light sources 310 , a light source circuit board 320 , a light guide plate 330 , a reflective sheet 340 , and optical sheets 350 . The backlight unit 300 converts light from the light sources 310 into a uniform surface light source through the light guide plate 320 and the optical sheets 350 to irradiate the display panel 100 with light. In FIGS. 2, 4, and 5, the backlight unit has been mainly described as being implemented as an edge type, but the present invention is not limited thereto, and it should be noted that the backlight unit may be implemented as a direct type.

The light sources 310 may be implemented as light emitting diodes. The light sources 310 are disposed on at least one side surface of the light guide plate 320 to irradiate light to the side surface of the light guide plate 320 . The light sources 310 are mounted on the light source circuit board 320 , and are turned on and off by receiving a driving current from the light source driving circuit 241 . The light source circuit board 320 is connected to the light source driver 240 .

The light guide plate 320 converts light from the light sources 310 into a planar light source and irradiates the light to the display panel 100 . The reflective sheet 340 is disposed on the lower surface of the light guide plate 330 to reflect light from the light guide plate 330 downward of the light guide plate 330 toward the light guide plate 330 .

Optical sheets 345 are disposed between the light guide plate 330 and the display panel 100 . The optical sheets 350 include one or more prism sheets and one or more diffusion sheets to diffuse light incident from the light guide plate 330 and transmit the light at an angle substantially perpendicular to the light incident surface of the display panel 100 . The path of light is refracted so that it is incident. In addition, the optical sheets 350 may include a dual brightness enhancement film.

The case member 400 includes a bottom cover 410 , a support frame 420 , a conductive tape 430 , and a shield cover 440 .

The bottom cover 410 is made of metal having a rectangular frame and covers the side and lower surfaces of the backlight unit 300 as shown in FIGS. 4 and 5 . The bottom cover 410 may be made of a high-strength steel sheet, for example, electro-galvanized steel sheet (EGI), stainless steel (SUS), galvalume (SGLC), aluminum-plated steel sheet (aka ALCOSTA), tin-plated steel sheet (SPTE), etc. can be made with

The support frame 420 supports the lower surface of the lower substrate 110 of the display panel 100 . The support frame 420 may be fixed by being coupled to the bottom cover 410 and the fixing member. The support frame 420 may be made of a square frame in which glass fibers are mixed in synthetic resin such as polycarbonate, plastic, or the like, or made of stainless steel (Steel Use Stainless, SUS). Meanwhile, in order to protect the lower substrate 110 of the display panel 100 from being impacted by the support frame 420 , a buffer member is disposed between the lower substrate 110 and the support frame 420 as shown in FIGS. 4 to 7 . (421) may be provided.

When external static electricity is applied to the display panel 100 , the conductive tape 430 discharges the applied static electricity to the bottom cover 410 . The conductive tape 430 includes the transparent electrode 130 provided on the upper surface of the upper substrate 120 , the side surface of the upper substrate 120 , the upper and side surfaces of the lower substrate 110 , and the upper surface, side and lower surfaces of the support frame 420 . , and may be attached to the lower surface of the bottom cover 410 . Accordingly, when external static electricity is applied to the transparent electrode 130 provided on the upper surface of the upper substrate 120 , it may be discharged to the bottom cover 410 through the conductive tape 430 . The bottom cover 410 functions as a ground.

Since the liquid crystal display device according to the embodiment of the present invention is formed in a borderless method, since the top case is removed, the conductive tape 430 may be exposed to the outside as it is on the upper surface of the liquid crystal display device. there is. In this case, the aesthetic sense of the liquid crystal display may be deteriorated. Therefore, in the embodiment of the present invention, the conductive tape 430 is attached only to one side of the display panel 100 to which the source flexible films 220 are attached, and the conductive tape 430 is exposed on the upper surface of the liquid crystal display. A protective cover 440 surrounding the conductive tape 430 is attached to minimize it.

The protective cover 440 may include a cover part 441 , a pressing part 442 , a hook part 443 , and a fixing part 444 as shown in FIG. 3 .

The cover part 441 is formed to surround the lower substrate 110 , the support frame 420 , and the conductive tape 430 attached to the bottom cover 410 . The cross-section of the cover part 441 may be formed in a 'C' shape as shown in FIGS. 4 to 6 . Since the conductive tape 430 is almost covered by the cover part 441 , external exposure of the conductive tape 430 may be minimized.

The pressing part 442 extends from one end of the cover part 441 as shown in FIG. 4 and presses the conductive tape 430 attached to the upper surface of the lower substrate 110 . Desorption of the conductive tape 430 attached to the upper surface of the lower substrate 110 by the pressing part 442 may be prevented. In addition, the pressing unit 442 presses the source flexible film 220 to prevent detachment of the source flexible film 220 attached to the upper surface of the lower substrate 110 as well as the conductive tape 430 as shown in FIG. 5 . can

The hook part 443 extends from the pressing part 442 as shown in FIG. 6 and is inserted into the hole provided in the support frame 420 . Due to the hook portion 443 , the protective cover 440 may be fixed to the support frame 420 .

The fixing part 444 extends from the other end of the cover part 441 as shown in FIGS. 4 to 7 and is fixed to the lower surface of the bottom cover 410 by the fixing member 450 . The fixing member 450 may be a screw, and in this case, it may be inserted into the screw groove of the bottom cover 410 and the screw groove G provided in the fixing part 444 .

As described above, in the embodiment of the present invention, the transparent electrode 130, the upper substrate 110, the lower substrate 120, the support frame 420, and the bottom cover ( It is attached to the 410 and surrounds the conductive tape 430 attached to the support frame 420 and the bottom cover 410 using the protective cover 440 . As a result, according to the embodiment of the present invention, the exposure of the conductive tape for discharging static electricity applied to the display panel can be minimized, and thus the aesthetics of the liquid crystal display can be prevented from being deteriorated.

8 is a perspective view illustrating a liquid crystal display device according to another embodiment of the present invention. 9 is an exploded perspective view of the liquid crystal display of FIG. 8 . 10 is a cross-sectional view illustrating an example of V-V' of FIG. 8 . 11 is a cross-sectional view illustrating an example of VI-VI' of FIG. 8 . 12 is a cross-sectional view illustrating an example of VII-VII' of FIG. 8 .

8 to 12 , the liquid crystal display according to the embodiment of the present invention includes a display panel 100 , a driving circuit unit for driving the display panel 100 , a backlight unit 300 , and a case member 400 . includes The liquid crystal display according to an embodiment of the present invention may be formed in a borderless manner in which a top case is removed.

The upper substrate 120 may be a TFT substrate on which a thin film transistor (hereinafter, referred to as “TFT”) is formed. The size of the lower substrate 120 may be larger than the size of the lower substrate 110 . Conductive tapes 430 and source flexible films 220 may be attached to one edge of the lower surface of the upper substrate 120 that is not covered by the lower substrate 110 . A lower surface of the upper substrate 120 corresponds to a surface facing the lower substrate 110 .

Signal lines such as data lines and gate lines crossing each other, and TFTs are provided on the lower surface of the upper substrate 120 of the display panel 100 . TFTs may be disposed in a region where the data lines and the gate lines intersect. Each of the TFTs supplies the data voltage of the data line to the pixel electrode in response to the gate signal of the gate line. The liquid crystal of the liquid crystal layer is driven by an electric field generated by a potential difference between the data voltage supplied to the pixel electrode and the common voltage supplied to the common electrode, and thus the amount of light transmitted from the backlight unit can be adjusted.

A black matrix and a color filter may be provided on the upper surface of the lower substrate 110 of the display panel 100 . The upper surface of the lower substrate 110 corresponds to the surface facing the upper substrate 120 . However, when the display panel 100 is formed by a color filter on TFT array (COT) method, the black matrix and the color filter may be provided on the lower surface of the upper substrate 120 . The common electrode is provided on the upper surface of the lower substrate 110 in a vertical electric field driving method such as TN (Twisted Nematic) mode and VA (Vertical Alignment) mode, IPS (In Plane Switching) mode and FFS (Fringe Field Switching) mode and In the same horizontal electric field driving method, it may be provided on the lower surface of the upper substrate 120 . Also, an alignment layer for setting a pretilt angle of the liquid crystal may be formed on the lower surface of the upper substrate 120 and the upper surface of the lower substrate 110 of the display panel 100 .

An upper polarizing plate 150 is attached to the upper surface of the upper substrate 120 of the display panel 100 . The transparent electrode 130 is formed on the entire lower surface of the lower substrate 110 of the display panel 100 , and the lower polarizing plate 140 is attached under the transparent electrode 130 . The lower polarizing plate 140 may be formed in a size smaller than that of the lower substrate 110 , and the upper polarizing plate 150 may be formed in a size smaller than that of the upper substrate 120 . Accordingly, the conductive tape 430 may be attached to the exposed transparent electrode 130 without being covered by the lower polarizing plate 140 .

The driving circuit unit includes a gate driving circuit, source driving circuits 210 , source flexible films 220 , a circuit board 230 , and a light source driving unit 240 .

The gate driving circuit supplies gate signals to the gate lines of the upper substrate 120 . When the gate driving circuit is implemented as a driving chip, it may be mounted on the gate flexible film in a chip on film (COF) method, and the gate flexible films are the upper substrate 120 not covered by the lower substrate 110 . ) can be attached to the edge of the lower surface. Alternatively, the gate driving circuit may be directly formed on the lower surface of the upper substrate 120 using a gate driver in panel (GIP) method. In this case, the gate flexible films may be omitted.

The source driving circuits 210 supply data voltages to the data lines of the upper substrate 120 . When each of the source driving circuits 210 is implemented as a driving chip, they may be mounted on the source flexible film 220 in a COF method. Alternatively, the source driving circuits 210 may be adhered to the lower surface of the upper substrate 120 by a chip on glass (COG) method or a chip on plastic (COP) method. The source flexible films 220 may be attached to one edge of the upper surface of the upper substrate 120 that is not covered by the lower substrate 110 and to the circuit board 230 . The circuit board 230 may be implemented as a printed circuit board.

The light source driver 240 includes a light source driver circuit 241 and a light source circuit board 242 . Since the light source driver 240 is substantially the same as that described with reference to FIGS. 1 to 7 , a detailed description of the light source driver 240 will be omitted.

The driving circuit unit may further include a timing control circuit and a control circuit board on which the timing control circuit is mounted. In this case, the control circuit board may be connected to the circuit board 230 through a predetermined flexible cable.

The backlight unit 300 includes light sources 310 , a light source circuit board 320 , a light guide plate 330 , a reflective sheet 340 , and optical sheets 350 . Since the backlight unit 300 is substantially the same as that described with reference to FIGS. 1 to 7 , a detailed description of the backlight unit 300 will be omitted.

The case member 400 includes a bottom cover 410 , a support frame 420 , a conductive tape 430 , and a shield cover 440 .

Since the bottom cover 410 and the support frame 420 are substantially the same as those described with reference to FIGS. 1 to 7 , a detailed description of the bottom cover 410 and the support frame 420 will be omitted.

When external static electricity is applied to the display panel 100 , the conductive tape 430 discharges the applied static electricity to the bottom cover 410 . The conductive tape 430 may be attached to the transparent electrode 130 provided on the lower surface of the lower substrate 110 , the upper, side and lower surfaces of the support frame 420 , and the lower surface of the bottom cover 410 . For this reason, when external static electricity is applied to the transparent electrode 130 provided on the lower surface of the lower substrate 110 , it may be discharged to the bottom cover 410 through the conductive tape 430 . The bottom cover 410 functions as a ground.

Meanwhile, since the conductive tape 430 of the liquid crystal display shown in FIGS. 1 to 7 is attached to the transparent electrode 130 provided on the upper surface of the upper substrate 120 , the display panel to which the source flexible films 220 are attached. (100) was attached to only one side. However, since the conductive tape 430 of the liquid crystal display shown in FIGS. 8 to 11 is attached to the transparent electrode 130 provided on the lower surface of the lower substrate 110, the gate driving circuit is not mounted on the gate flexible film. When formed in the GIP method, as shown in FIG. 9 , only one side of the display panel 100 to which the source flexible films 220 are attached is exposed to the upper surface of the liquid crystal display, and as shown in FIG. 11 , the remaining three sides of the liquid crystal display not exposed on the top. Therefore, the conductive tape 430 of the liquid crystal display shown in FIGS. 8 to 11 may be attached to all four sides of the display panel 100 . As a result, in the exemplary embodiment of the present invention, even when external static electricity is applied to any of the four sides of the display panel 100 , the bottom cover 410 can discharge it.

Since the liquid crystal display device according to the embodiment of the present invention is formed in a borderless method, since the top case is removed, the conductive tape 430 may be exposed to the outside as it is on the upper surface of the liquid crystal display device. there is. In this case, the aesthetic sense of the liquid crystal display may be deteriorated. Therefore, the embodiment of the present invention includes a protective cover 440 surrounding the conductive tape 430 to minimize exposure of the conductive tape 430 to the top surface of the liquid crystal display.

The protective cover 440 may include a cover part 441 , a pressing part 442 , a hook part 443 , and a fixing part 444 as shown in FIG. 3 . Since the conductive tape 430 is exposed on the upper surface of the liquid crystal display only from one side of the display panel 100 to which the source flexible films 220 are attached, the protective cover 440 is the conductive tape ( It may be formed outside one side of the display panel 100 to cover the 430 .

The cover part 441 is formed to surround the support frame 420 and the conductive tape 430 attached to the bottom cover 410 . The cross-section of the cover part 441 may be formed in a 'C' shape as shown in FIGS. 9 to 11 . Since the conductive tape 430 is almost covered by the cover part 441 , external exposure of the conductive tape 430 may be minimized.

The pressing part 442 extends from one end of the cover part 441 as shown in FIG. 9 and presses the conductive tape 430 attached to the upper surface of the support frame 420 . Desorption of the conductive tape 430 attached to the upper surface of the support frame 420 due to the pressing part 442 may be prevented.

The hook part 443 extends from the pressing part 442 as shown in FIG. 10 and is inserted into the hole provided in the support frame 420 . Due to the hook portion 443 , the protective cover 440 may be fixed to the support frame 420 .

The fixing part 444 extends from the other end of the cover part 441 as shown in FIGS. 9 and 10 and is fixed to the lower surface of the bottom cover 410 by the fixing member 450 . The fixing member 450 may be a screw, and in this case, it may be inserted into the screw groove of the bottom cover 410 and the screw groove G provided in the fixing part 444 as shown in FIG. 3 .

As described above, in the embodiment of the present invention, the conductive tape 430 is attached to the transparent electrode 130 , the support frame 420 , and the bottom cover 410 provided on the lower surface of the lower substrate 110 in a borderless manner. and surround the conductive tape 430 attached to the support frame 420 and the bottom cover 410 using the protective cover 440 . As a result, according to the embodiment of the present invention, the exposure of the conductive tape for discharging static electricity applied to the display panel can be minimized, and thus the aesthetics of the liquid crystal display can be prevented from being deteriorated.

12 is a cross-sectional view illustrating a second example of V-V' of FIG. 8 . 13 is a cross-sectional view illustrating a second example of VI-VI' of FIG. 8 . 14 is a cross-sectional view illustrating a second example of VII-VII' of FIG. 8 . The liquid crystal display according to an embodiment of the present invention may be formed in a borderless manner in which a top case is removed.

The display panel 100 of the liquid crystal display shown in FIGS. 12 to 14 , the driving circuit unit for driving the display panel 100 , and the backlight unit 300 are substantially the same as those described with reference to FIGS. 8 to 11 . , a detailed description of the display panel 100 , a driving circuit unit for driving the display panel 100 , and the backlight unit 300 will be omitted.

The case member 400 includes a bottom cover 410 , a support frame 420 , a conductive tape 430 , and a shield cover 440 .

Since the bottom cover 410 and the support frame 420 are substantially the same as those described with reference to FIGS. 1 to 7 , a detailed description of the bottom cover 410 and the support frame 420 will be omitted.

In order to protect the lower substrate 110 of the display panel 100 from being impacted by the support frame 420 , as shown in FIGS. 12 to 14 , the lower substrate 110 and the support frame 420 are electrically conductive as a buffer member. A pad 460 may be provided. The conductive pad 460 may be attached to the transparent electrode 130 provided on the upper surface of the support panel 420 and the lower surface of the lower substrate 110 .

When external static electricity is applied to the display panel 100 , the conductive tape 430 discharges the applied static electricity to the bottom cover 410 . The conductive tape 430 may be attached to the conductive pad 460 , the side and lower surfaces of the support frame 420 , and the lower surface of the bottom cover 410 . For this reason, when external static electricity is applied to the transparent electrode 130 provided on the lower surface of the lower substrate 110 , it may be discharged to the bottom cover 410 through the conductive tape 430 attached to the conductive pad 460 . there is. The bottom cover 410 functions as a ground.

Meanwhile, since the conductive tape 430 of the liquid crystal display shown in FIGS. 1 to 7 is attached to the transparent electrode 130 provided on the upper surface of the upper substrate 120 , the display panel to which the source flexible films 220 are attached. (100) was attached to only one side. However, since the conductive tape 430 of the liquid crystal display shown in FIGS. 12 to 14 is attached to the transparent electrode 130 provided on the lower surface of the lower substrate 110, the gate driving circuit is not mounted on the gate flexible film. When formed in the GIP method, as shown in FIG. 12 , only one side of the display panel 100 to which the source flexible films 220 are attached is exposed to the upper surface of the liquid crystal display, and as shown in FIG. 14 , the remaining three sides of the liquid crystal display not exposed on the top. Therefore, the conductive tape 430 of the liquid crystal display shown in FIGS. 12 to 14 may be attached to all four sides of the display panel 100 . As a result, in the exemplary embodiment of the present invention, even when external static electricity is applied to any of the four sides of the display panel 100 , the bottom cover 410 can discharge it.

Since the liquid crystal display device according to the embodiment of the present invention is formed in a borderless method, since the top case is removed, the conductive tape 430 may be exposed to the outside as it is on the upper surface of the liquid crystal display device. there is. In this case, the aesthetic sense of the liquid crystal display may be deteriorated. Therefore, the embodiment of the present invention includes a protective cover 440 surrounding the conductive tape 430 to minimize exposure of the conductive tape 430 to the top surface of the liquid crystal display.

The protective cover 440 may include a cover part 441 , a pressing part 442 , a hook part 443 , and a fixing part 444 as shown in FIG. 3 . Since the conductive tape 430 is exposed on the upper surface of the liquid crystal display only from one side of the display panel 100 to which the source flexible films 220 are attached, the protective cover 440 is the conductive tape ( It may be formed outside one side of the display panel 100 to cover the 430 .

The cover part 441 is formed to surround the support frame 420 and the conductive tape 430 attached to the bottom cover 410 . The cross-section of the cover part 441 may be formed in a 'C' shape as shown in FIGS. 12 to 14 . Since the conductive tape 430 is almost covered by the cover part 441 , external exposure of the conductive tape 430 may be minimized.

The pressing part 442 extends from one end of the cover part 441 and presses the conductive tape 430 attached to the upper surface of the support frame 420 as shown in FIG. 12 . Desorption of the conductive tape 430 attached to the upper surface of the support frame 420 due to the pressing part 442 may be prevented.

The hook part 443 extends from the pressing part 442 as shown in FIG. 13 and is inserted into the hole provided in the support frame 420 . Due to the hook portion 443 , the protective cover 440 may be fixed to the support frame 420 .

The fixing part 444 extends from the other end of the cover part 441 as shown in FIGS. 12 and 13 and is fixed to the lower surface of the bottom cover 410 by the fixing member 450 . The fixing member 450 may be a screw, and in this case, it may be inserted into the screw groove of the bottom cover 410 and the screw groove G provided in the fixing part 444 as shown in FIG. 3 .

As described above, in the embodiment of the present invention, the conductive tape 430 is attached to the conductive pad 460 , the support frame 420 , and the bottom cover 410 in a borderless manner, and the protective cover 440 is attached thereto. The conductive tape 430 attached to the support frame 420 and the bottom cover 410 is surrounded by using. As a result, according to the embodiment of the present invention, the exposure of the conductive tape for discharging static electricity applied to the display panel can be minimized, and thus the aesthetics of the liquid crystal display can be prevented from being deteriorated.

Those skilled in the art from the above description will be able to see that various changes and modifications can be made without departing from the technical spirit of the present invention. Accordingly, 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.

100: display panel 110: lower substrate
120: upper substrate 130: transparent electrode
140: lower polarizing plate 150: upper polarizing plate
210: source driving circuit 220: source flexible film
230: circuit board 240: light source driver
241: light source driving circuit 242: light source circuit board
300: backlight unit 310: light source
320: light source circuit board 330: light guide plate
340: reflective sheet 350: optical sheets
400: case member 410: bottom cover
420: support frame 430: conductive tape
440: protective cover 450: fixing member
460: conductive pad

Claims (10)

A display panel comprising a lower substrate and an upper substrate facing each other, signal lines and transistors are provided on one surface of the lower substrate, and a transparent electrode is provided on an opposite surface of one surface of the upper substrate facing one surface of the lower substrate ;
a backlight unit disposed under the lower substrate and irradiating light to the display panel;
a bottom cover surrounding the backlight unit;
a support frame supporting a lower surface of the lower substrate and surrounding a side surface of the bottom cover;
a conductive tape attached to the transparent electrode, the lower substrate, side surfaces of the support frame, and a lower surface of the bottom cover; and
and a protective cover coupled to the support frame and the bottom cover to surround the conductive tape. The method of claim 1,
The protective cover is
a cover part surrounding the lower substrate, the support frame, and the conductive tape attached to the bottom cover;
a pressing part extending from the cover part and pressing the conductive tape attached to the support frame to prevent the conductive tape from being detached;
a hook part extending from the pressing part and inserted into a hole provided in the support frame to be fixed to the support frame; and
and a fixing part extending from the cover part and fixed to the bottom cover by a fixing member on a lower surface of the bottom cover. 3. The method of claim 2,
Pads connected to the signal lines are provided on one edge of one surface of the lower substrate, and the conductive tape is attached to one edge of one surface of the lower substrate. 4. The method of claim 3,
The size of the lower substrate is larger than the size of the upper substrate,
An edge of one side of one surface of the lower substrate is not covered by the upper substrate. A display panel including a lower substrate and an upper substrate facing each other, signal lines and transistors are provided on one surface of the upper substrate, and a transparent electrode is provided on an opposite surface of the lower substrate facing one surface of the upper substrate ;
a backlight unit disposed under the lower substrate and irradiating light to the display panel;
a bottom cover surrounding the backlight unit;
a support frame supporting a lower surface of the lower substrate and surrounding a side surface of the bottom cover;
a conductive tape for discharging static electricity applied to the transparent electrode to the bottom cover; and
and a protective cover coupled to the support frame and the bottom cover to surround the conductive tape. 6. The method of claim 5,
The conductive tape is attached to the transparent electrode, upper and side surfaces of the support frame, and a lower surface of the bottom cover. 6. The method of claim 5,
Further comprising a conductive pad provided between the transparent electrode and the upper surface of the support frame,
The conductive tape is attached to the conductive pad, upper and side surfaces of the support frame, and a lower surface of the bottom cover. 8. The method according to claim 6 or 7,
The protective cover is
a cover part surrounding the support frame and the conductive tape attached to the bottom cover;
a pressing part extending from the cover part and pressing the conductive tape attached to the upper surface of the support frame to prevent the conductive tape from being detached;
a hook part extending from the pressing part and inserted into a hole provided on an upper surface of the support frame to be fixed to the support frame; and
and a fixing part extending from the cover part and fixed to the bottom cover by a fixing member on a lower surface of the bottom cover. 9. The method of claim 8,
The protective cover is provided outside one side of the display panel on which pads connected to the signal lines are provided. 10. The method of claim 9,
The conductive tape is provided on four sides of the display panel.

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