KR102439638B1 - Display device - Google Patents

Abstract

The present invention relates to a display device, and provides a display device that can be easily separated during rework by coupling a display panel and a back cover to which a magnetic sealing member sealing a pixel array is coupled to the rear surface using a magnet member.

Description

display device {DISPLAY DEVICE}

The present invention relates to a display device, and more particularly, a middle cabinet and a back cover protect the end of the display panel while preventing panel lifting and sliding of the display device, and easy separation of the panel and the back cover during rework It relates to a display device.

In general, as a flat panel display device, a liquid crystal display device, a plasma display device, a field emission display device, a light emitting display device, etc. Although it is being actively studied, liquid crystal display devices and light emitting display devices are in the spotlight because of the advantages of mass production technology, ease of driving means, and realization of high quality.

1 is a cross-sectional view showing a conventional display device, and is composed of a first substrate 101 and a second substrate 102 facing the first substrate 101, and the first and second substrates 101 and 102 are They are spaced apart from each other, and their edges are sealed through a sealing member and bonded to form the OLED panel 110 .

At this time, a polarizing plate 140 is attached to the upper surface of the OLED panel 110 , where the polarizing plate 140 has a disadvantage that the contrast of the OLED panel 110 is greatly reduced according to the intensity of external light. It is provided to prevent a decrease in contrast.

The OLED panel 110 has a rear surface as an adhesive member 125 , and is coupled to a back cover 120 comprising a horizontal surface 121 and a side surface 123 , and the side surface 123 of the back cover 120 is a buffer member. 130 is coupled and the case 160 is coupled to the outside thereof while surrounding a portion of the front surface of the OLED panel 110 .

However, such a conventional display device has a problem in that it is difficult to separate the panel and the back cover due to the bonding force of the adhesive member when the panel is reworked due to defects occurring after the manufacturing and assembly are finished.

In addition, when the panel and the back cover are separated by excessive force, the panel is damaged or the back cover is deformed, so that the purpose of the rework cannot be achieved, and there is a problem in that the loss in the process of consuming only time increases.

Accordingly, there is an increasing need for a display device capable of maintaining the bonding force between the panel and the back cover while minimizing the thickness of the display device having a small or large area and capable of separating the panel and the back cover during rework.

Against this background, it is an object of the present invention to provide a display device in which a middle cabinet and a back cover of the display device can prevent panel lifting and sliding of the display device while protecting the end of the display panel.

Another object of the present invention is to provide a display device capable of separating a panel and a back cover during rework in a display device, and greatly reducing the separation force required for separation, thereby increasing rework efficiency.

In addition, the object of the present invention is not limited thereto, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, in one aspect, the present invention provides an easy separation during rework by coupling a display panel and a back cover to which a magnetic sealing member for sealing the pixel array on the rear surface is coupled with a magnet member. A display device is provided.

As described above, according to the present invention, in the display device, the middle cabinet and the back cover protect the ends of the display panel while preventing the panel from lifting and sliding of the display device.

In addition, according to the present invention, it is possible to separate the panel and the back cover during rework in the display device, and the separation force required for separation is also greatly reduced, thereby increasing the rework efficiency.

1 is a cross-sectional view showing a conventional display device;
2 is a perspective view showing a display device according to an embodiment of the present invention;
3 and 4 are cross-sectional views showing a display device according to an embodiment of the present invention;
5 is a plan view illustrating a state in which a middle cabinet and a back cover are combined in a display device according to an embodiment of the present invention;
6 is a schematic diagram schematically illustrating a process of separating a back cover and a display panel in a display device according to an embodiment of the present invention;
7 and 8 are cross-sectional views illustrating a display device according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are indicated in different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description may be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but other components may be interposed between each component. It should be understood that each component may be “interposed” or “connected,” “coupled,” or “connected” through another component.

2 is a perspective view illustrating a display apparatus according to an embodiment of the present invention, FIGS. 3 and 4 are cross-sectional views illustrating a display apparatus according to an embodiment of the present invention, and FIG. 5 is a display apparatus according to an embodiment of the present invention. A plan view showing a state in which the middle cabinet and the back cover are coupled, FIG. 6 is a schematic view schematically illustrating a process of separating the back cover and the display panel in the display device according to an embodiment of the present invention, and FIGS. 7 and 8 are the present invention is a cross-sectional view showing a display device according to an embodiment.

As shown in these drawings, the display device 200 according to an embodiment of the present invention includes a display panel 201, a display panel ( A middle cabinet ( 203), a back cover 205 coupled to the rear surface of the second support part 203b of the middle cabinet 203 and provided with an insertion groove 205a on the front surface, a front surface coupled to the rear surface of the encapsulation member 201b, and a rear surface and a magnet member 215 coupled to the insertion groove 205a to couple the display panel 201 and the back cover 205 .

That is, in the present invention, the display panel 201 using a magnet member 215 is used to separate the display panel 201 , whereas conventionally it was impossible to separate the display panel 201 and the back cover 205 by coupling them using an adhesive member (see 125 in FIG. 1 ). ) and the back cover 205 are combined to enable separation.

First, comparing FIG. 2 with FIG. 1 , in the display device 200 according to the present invention, the outer edge, that is, the width of the bezel according to the present invention (thickness of the first support part 203a) is the width of the conventional bezel ( FIG. 1 ). in the case (width of 160 in FIG. 1) is significantly reduced compared to the four-sided borderless (Borderless) type or bezelless (Bezelless) type can be achieved.

In order to reduce the width of the bezel, in the present invention, the case, which is a conventional bezel, is removed and the first support part 203a surrounding the end side of the display panel 201 in the middle cabinet 203 and the inner surface of the first support part 203a. A second support portion 203b extending inward from the display panel 201 on which the display panel 201 is seated is provided.

In addition, the middle cabinet 203 may be formed of a synthetic resin or metal material such as plastic in consideration of formability and material cost, but is made of aluminum or aluminum alloy or stainless steel or galvanized steel sheet in consideration of heat dissipation in addition to predetermined strength. can be formed.

As described above, the display panel 201 in the present invention is composed of a light emitting display panel 201, which includes a plurality of light emitting display panels formed for each area defined by a gate line, a data line, and a power supply (VDD) line. It may be configured to include a lower substrate including a light emitting cell and an upper substrate facing and bonded to the lower substrate.

In addition, each of the plurality of light emitting cells formed on the lower substrate is controlled according to the switching of at least one switching transistor connected to the gate line and the data line, at least one driving transistor connected to the switching transistor and the power supply (VDD) line, and the driving transistor. It may be configured to include a light emitting device (eg, OLED) that emits light by an electric current, and the upper substrate is configured to include a moisture absorbent for protecting the light emitting device from moisture or oxygen in the atmosphere.

In this case, the upper substrate may further include a light emitting device connected to the driving transistor, and in this case, the light emitting device of the lower substrate may be omitted.

In the present invention, the display panel 201 is seated on the upper side of the second support part 203b of the middle cabinet 203, but the backlight unit that emits light is not configured as a panel that emits light by itself. It will be described with reference to the display panel 201 .

Since organic compounds in the pixel array of the light emitting display panel 201 may deteriorate when exposed to moisture or oxygen, an encapsulation member 201b is provided on the rear surface of the display panel 201 to prevent such pixel deterioration problem. can be bonded to the pixel array to seal the pixel array.

Here, the encapsulation member 201b may be a metal substrate or a glass substrate. In the present invention, it is formed of a magnetic material among metals to enable coupling with the magnet member 215, and a polarizing film ( 201a) may be adhered.

In addition, in order to prevent light leakage from being emitted from the pixel array through the side surface, a side seal member 213 may be provided on the side surface of the display panel 201 .

Here, the side seal member 213 may be made of a polymer material to which a black pigment is added, and the side seal member 213 absorbs light emitted from the pixel array, so that the side seal member 213 is emitted through the side surface of the display panel 201 . light becomes invisible.

A plurality of flexible circuit films 201c on which the ICs 201d are mounted are electrically connected to the display panel 201 on the rear surface of either end (eg, the lower portion) of the display panel 201 formed in a rectangular shape. and a printed circuit board 201e disposed parallel to the display panel 201 is installed.

In addition, the plurality of flexible circuit films 201c are attached to the pad part (not shown) and the printed circuit board 201e by a Tape Automated Bonding (TAB) process. Flexible Board or Chip On Film).

Accordingly, the display panel 201 is electrically connected or connected to the printed circuit board 201e through the plurality of flexible circuit films 201c, and the printed circuit board 201e includes the plurality of flexible circuit films 201c. is electrically connected to the display panel 201 to provide various signals for displaying an image.

The middle cabinet 203 includes a first support part 203a and a second support part 203b that are vertically connected to each other. is exposed to the front while surrounding, the distance between the end of the first support portion 203a and the end of the display panel 201, that is, the bezel is significantly reduced compared to the prior art, and the second support portion 203b has a front surface The display panel 201 is seated on the back cover 205 is coupled to the rear.

As such, when the end of the first support part 203a becomes the bezel, the width of the bezel is greatly reduced, and the front surface of the back cover 205 coupled to the rear surface of the second support part 203b of the middle cabinet 203 and the sealing member 201b ), a magnet member 215 is coupled to the rear surface of the display panel 201 and the back cover 205 to facilitate separation during rework.

Such a magnet member 215 is disposed at a position adjacent to the inner end of the second support portion 203b of the middle cabinet 203 to couple the back cover 205 and the display panel 201 , and thus the display panel 201 . It is possible to minimize the influence of the magnetic field on circuit parts such as the gate line, the data line, and the power supply (VDD) line located from the end to the center.

And, as shown in FIG. 3 showing the section A-A' in FIG. 2, an insertion groove 205a into which the magnet member 215 is inserted is provided on the front side of the back cover 205, so that the magnet member ( 215) is seated and fixed in the insertion groove 205a of the back cover 205, so that it is set in the correct position without being separated from side to side.

In addition, the above-described flexible circuit film 201c is provided on the rear surface of the display panel 201 at any one end of the four ends of the display panel 201 formed in a rectangular shape, for example, the region B-B' in FIG. 2 , As shown in FIG. 4 , a pad 217 supporting the flexible circuit film 201c may be coupled to a portion where the flexible circuit film 201c is positioned.

That is, FIG. 4 is a cross-section of the region B-B' in FIG. 2, that is, in FIG. 5, a cross-section of a region 217a where the flexible circuit film 201c is disposed between the magnet member 215 and the magnet member 215 at the lower end. As shown in FIG. 4 , the pad 217 is coupled to the front surface of the second support part 203b of the middle cabinet 203 to protect and support the flexible circuit film 201c.

Here, the lower surface 218 of the pad 217 may be fixed to the front surface of the second support portion 203b of the middle cabinet 203 by being coupled with an adhesive member, and the upper surface of the pad 217 may be formed of a flexible circuit film ( 201c) is seated and supported.

In addition, as shown in FIG. 5, the magnet member 215 is coupled to an area 215a spaced parallel to the center along the end of the second support part 203b of the middle cabinet 203. , It is arranged at four corners of the back cover 205 and several are spaced apart along the end of the second support part 203b between the corners of the back cover 205 so that the four corners of the display panel 201 are lifted. It prevents and increases the bonding force at the end.

Here, as shown in FIG. 5 , a plurality of flexible circuit films 201c on which an IC 201d is mounted are disposed on one end (eg, a lower portion) of the back cover 205 at the rear end of the display panel 201 . and the printed circuit board 201e, the magnet member 215 is coupled to the back cover 205 between the portions 217a where these flexible circuit films 201c are disposed.

The magnet member 215 has the same N pole on either one of the rear surface of the encapsulation member 201b and the front surface of the back cover 205 and the same S pole on the other side.

That is, the N poles of all the magnet members 215 are disposed on the rear side of the back cover 205 or the S poles are coupled to be disposed, so that the same magnetic poles are disposed on the display panel 201 side during rework. ), the separation of the display panel 201 and the back cover 205 is facilitated.

As shown in FIG. 6 , the separation of the display panel 201 and the back cover 205 coupled by the magnet member 215 is performed by a magnet member coupled to the back cover 205 on the upper side of the display panel 201 ( 215), it is possible to separate the separation by coupling the magnet member 225 having a greater magnetic force.

That is, when the magnetic separation member 225 is coupled to the upper side of the display panel 201 , the lower surface of the separation magnetic member 225 and the upper surface magnetic pole of the magnet member 215 are coupled in the same direction to display the display panel 201 . The sealing member 201b provided on the rear surface of the panel 201 exerts attractive force with the separation magnet, and generates a repulsive force between the magnet member 215 and the separation magnet.

And, since the magnetic force of the separation magnet member 225 is greater than that of the magnet member 215 , the attractive force between the sealing member 201b and the separation magnet member 225 is greater than the attractive force between the sealing member 201b and the magnet member 215 . Due to this large and at the same time repulsive force of the separation magnet member 225 and the magnet member 215 , the display panel 201 is separated from the back cover 205 in a state coupled to the separation magnet member 225 , resulting in panel defects or bags. During rework due to a defect in the cover 205 , the display panel 201 and the back cover 205 may be easily separated.

In addition, as shown in FIG. 7 , a coating portion 216 made of any one of rubber, silicone, urethane, and epoxy resin may be provided on the outer surface of the magnet member 215 . Since the coating portion 216 is provided on the outer surface of the display panel 201, the frictional force with the sealing member 201b is increased, so that the display panel 201 can be fixed in place without sliding to either side during assembly or after assembly is completed.

On the other hand, the back cover 205 is mainly made of a galvanized steel sheet, but in some cases, it may be formed of aluminum or an aluminum alloy, etc. In this case, the insertion groove 205a of the back cover 205 as shown in FIG. 8 . By coupling the adhesive member 219 between the bottom surface and the rear surface of the magnet member 215 , the magnet member 215 and the back cover 205 are coupled and firmly fixed, so that the magnet member 215 is connected to the back cover 205 and the back cover 205 . It is capable of being coupled to the display panel 201 in the coupled state.

As described above, according to the present invention, the middle cabinet and the back cover protect the ends of the display panel and prevent panel lifting and sliding of the display device, and the middle cabinet and the back cover can be easily assembled and reworked. It has the effect of facilitating disassembly of the sea middle cabinet, the back cover, and the display panel.

In the above, even though all the components constituting the embodiment of the present invention are described as being combined or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more.

In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be embedded, unless otherwise stated, excluding other components. Rather, it should be construed as being able to include other components further. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the meaning in the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

201: display panel 201a: polarizing film
201b: encapsulation member 203: middle cabinet
203a: first support 203b: second support
205: back cover 205a: insertion groove
215: magnet member 216: coating part

Claims (6)

a display panel having an encapsulation member made of a magnetic material for sealing the pixel array on a rear surface thereof;
a middle cabinet provided with a first support part surrounding an end side of the display panel, and a second support part extending from an inner surface of the first support part and on which the display panel is seated;
a back cover coupled to the rear surface of the second support part of the middle cabinet and having an insertion groove in the front surface;
a magnet member having a front surface coupled to a rear surface of the encapsulation member and a rear surface inserted into the insertion groove to couple the display panel and the back cover;
includes,
The magnet member is disposed at four corners of the back cover, and several are spaced apart from each other along the end of the second support part between the corners of the back cover,
A plurality of flexible circuit films for connecting the display panel and the printed circuit board are provided on a rear surface of one of the ends of the display panel, and a lower surface of the pad is coupled to the front surface of the second support part by an adhesive member, and The flexible circuit film is seated and supported on the upper surface of the pad,
and the magnet member is disposed between at least one of the flexible circuit films. The method of claim 1,
The magnet member is disposed at a position adjacent to an end of the second support part and coupled thereto. delete The method of claim 1,
The magnet member is a display device in which the N pole is identically disposed on either one of the rear surface of the encapsulation member and the front surface of the back cover and the S pole is identically disposed on the other side. 3. The method of claim 2,
A display device having a coating made of any one of rubber, silicone, urethane, and epoxy resin on the outer surface of the magnet member. 3. The method of claim 2,
A display device in which an adhesive member is coupled between a bottom surface of the insertion groove of the back cover and a rear surface of the magnet member.

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