KR20160040348A - Display Device and Electronic Device having the same - Google Patents

Abstract

The present invention relates to a display device and an electronic device having the same. A protrusion part for maintaining a gap is formed in a plastic frame supporting the backlight unit of a display device, and a cover bottom supporting the backmost part of the display device. Therefore, a constant gap is formed between the display device and a set frame of the electronic device for installing the display device. Accordingly, a foreign substance existing on the inner/outer surface of the display device is distributed by an external pressure, so a display error can be minimized.

Description

DISPLAY DEVICE AND ELECTRONIC DEVICE COMPRISING THE SAME [Technical Field] The present invention relates to a display device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device and an electronic device including the display device, and more particularly, The present invention relates to a display apparatus capable of preventing a foreign matter white point phenomenon caused by pressure.

2. Description of the Related Art [0002] As an information-oriented society develops, there have been various demands for display devices for displaying images. Recently, liquid crystal displays (LCDs), plasma display panels (PDPs) Various display devices such as an OLED (Organic Light Emitting Diode Display Device) have been utilized.

Among these display devices, a liquid crystal display (LCD) has an array substrate including a thin film transistor, which is a switching element for controlling on / off each pixel region, and an array substrate including a color filter and / or a black matrix A display panel including a top substrate, a liquid crystal material layer formed therebetween, a driving unit for controlling the thin film transistor, a backlight unit (BLU) for providing light to the display panel, and the like , A pixel (PXL) electrode provided in a pixel region, and a common voltage (Vcom) electrode, and the transmittance of light is adjusted accordingly, thereby displaying an image.

In the case of such a liquid crystal display device, there is a backlight unit for providing light from the outside. Such a backlight unit may include a light source, a light guide plate, a reflection plate, an upper sheet, and the like. One or more frames or a chassis as a structure.

Such a frame or chassis may include a plastic chassis made of a plastic material other than a metal chassis or cover bottom that supports the rear end of the backlight unit.

In this manner, a display panel such as a liquid crystal panel and a backlight unit are supported by a frame or a chassis to constitute a single display device. Such a display device is an electronic device as a main body such as a mobile communication terminal or a tablet PC, And is used as a screen of a set device or the like.

On the other hand, in such conventional display apparatuses and setting apparatuses, the gap between each constituent element constituting the display apparatus is insufficient, and in particular, the gap between the lower reflector plate and the cover bottom of the backlight unit of the display apparatus, There is almost no clearance between the frame surfaces, and if foreign matter is present therebetween, if pressure is applied from the outside of the display panel, there is a possibility that defects such as a white spot phenomenon due to foreign objects may occur.

Therefore, an embodiment of the present invention is directed to this point, and a gap is formed between the display device and the set frame by forming a projection for holding the clearance on one side of the edge of the plastic frame supporting the backlight unit of the display device, So as to prevent a white spot phenomenon due to foreign matter.

In view of the foregoing, it is an object of the present invention to provide a display device capable of preventing defects due to foreign objects between a display device and a set frame of an electronic device on which the display device is mounted.

Another object of the present invention is to provide a display device in which a clearance is formed between a display device and a set frame of a set device so as to prevent display defects.

Another object of the present invention is to provide a display device capable of preventing display defects due to foreign matter existing between a display device and a set frame of a set device by forming a gap holding protrusion in a part of a frame that is a display device support structure will be.

Another object of the present invention is to provide a display apparatus in which a gap holding protrusion is formed in a part of a frame which is a display apparatus supporting structure and a receiving groove for accommodating a gap holding protrusion is formed in a set frame of a setting apparatus in which a display apparatus is mounted, And to provide a display device that provides a guide function in the process of attaching to a set frame.

According to an aspect of the present invention, there is provided a display device including a display panel, a backlight unit for providing light to the display panel, and a plastic frame for supporting the backlight unit, And a gap holding protrusion protruding outward from the region.

Another embodiment of the present invention is directed to a display comprising a display panel, a backlight unit for providing light to the display panel, and a plastic frame including a plastic frame having a gap holding projection projecting outwardly from a part of the edge, And a set frame for mounting the display device and having a receiving groove for receiving the gap holding protrusion.

According to another embodiment of the present invention, there is provided a display apparatus comprising: a display panel; a backlight unit for providing light to the display panel; a plastic frame for supporting the backlight unit; And a cover bottom including a gap holding protrusion protruding toward the set frame in a part of the edge area.

According to the embodiment of the present invention, a gap is formed between the display device and the set frame of the set device in which the display device is mounted, thereby preventing defective display due to foreign objects between the display device and the set frame.

Further, by providing a gap holding protrusion in a part of the frame, which is a display device supporting structure, by forming a constant gap between the display device and the set frame of the setting device, there is an effect of minimizing display defects due to foreign substances present in the display device have.

According to another embodiment of the present invention, a gap holding protrusion is formed in a part of a frame, which is a display device supporting structure, and a receiving groove for accommodating gap holding protrusion is formed in a set frame of the setting apparatus in which the display device is mounted Thereby providing a guide function in the process of mounting the display device on the set frame.

Fig. 1 is a cross-sectional view of a display device to which an embodiment of the present invention can be applied. Fig. 1 (a) is an overall schematic sectional view, and Fig. 1 (b) is a detailed sectional view showing a detailed configuration.
2 is an enlarged cross-sectional view showing a state in which a display device applicable to an embodiment of the present invention is mounted on a set frame of a set device.
FIG. 3 shows a display failure phenomenon such as a white spot due to a foreign object which may occur when the display device as shown in FIG. 2 is mounted on the setting device.
4 is a cross-sectional view of a display device according to an embodiment of the present invention.
Fig. 5 is an enlarged view of a plastic frame according to a first embodiment of the present invention, wherein Fig. 5 (a) is a perspective view showing only a plastic frame, Fig. 5 (b) Fig.
6 shows the construction of a plastic frame according to a second embodiment of the present invention.
7 shows a cross section of an electronic device in which a display device according to a third embodiment of the present invention is used.
Fig. 8 shows a display device according to a fourth embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

Fig. 1 is a cross-sectional view of a display device to which an embodiment of the present invention can be applied. Fig. 1 (a) is an overall schematic sectional view, and Fig. 1 (b) is a detailed sectional view showing a detailed configuration.

A display device 100 to which an embodiment of the present invention can be applied includes a display panel 110 and a backlight unit 200 mounted on the rear of the display panel to provide light to the display panel. have.

In the case of a liquid crystal display panel, the display panel 100 includes a plurality of gate lines, a data line, a pixel defined in a crossing region thereof, and a thin film transistor serving as a switching element for adjusting light transmittance in each pixel An upper substrate provided with a color filter and / or a black matrix, and a liquid crystal material layer formed therebetween.

The display panel to which the present invention can be applied is not limited to such a liquid crystal display panel but may include a display device such as a plasma display and a display device that emits light itself such as an OLED.

In addition, the display panel 110 and the backlight unit 120 of the liquid crystal display device to which an embodiment of the present invention may be applied may include at least one frame or chassis as a support frame for supporting the panel or the like.

Such a frame or chassis may include a frame-shaped plastic frame 130 surrounding the backlight unit, and a metallic frame or cover bottom 140 of metal surrounding the entire backside of the display.

1 (a), a display panel 100 is disposed from above the display device 100, a backlight unit 120 for providing light to the display panel is disposed below the display panel 100, and a backlight unit A plastic frame 130 functioning as a spacer between the display panel and the cover bottom is formed around the display panel 110 and the cover bottom 120 as a metal frame surrounding the display panel 110 and the backlight unit 120, Bottom) is provided.

Referring to FIG. 1 (b), the detailed configuration of such a display device will be described in more detail as follows.

In the case of a liquid crystal display panel, the display panel 100 is provided with pixels defined in a plurality of gate lines, data lines, and intersections thereof, and thin film transistors (TFTs), which are switching elements for adjusting light transmittance in each pixel An upper substrate having a color filter and / or a black matrix, and a liquid crystal material layer formed therebetween. In recent mobile devices, a touch window 112 may be formed, May be additionally disposed on the front surface of the upper substrate.

1B, the backlight unit 120 according to an exemplary embodiment of the present invention is an apparatus for providing light to the display panel 110 and includes a light source (LED) such as an LED, (LED FPC) 126, which is a circuit for controlling On / Off of a light source, and the like, a light guide plate (LGP) 122 or a diffuser plate for diffusing light into a display panel, And one or more optical films or sheets 128 disposed on the upper side of the light guide plate and arranged for improving brightness, diffusing and protecting light, and the like.

On the other hand, at least one chassis may be used as a support structure for mounting / supporting the backlight unit. The chassis may include a cover bottom 140 or a metal chassis covering the entire backlight unit at the rear most, And a rectangular frame-shaped plastic frame 130 connected to the top of the cover bottom.

The driving circuit includes a timing controller T-con, a data driver D-IC, a gate driver G-IC, and the like, to drive the display panel. .

All or part of the driving circuit portion may be formed on a liquid crystal panel by a COG (Chip On Glass) or a COF (Chip On Flexible Printed Circuit) method, and may be a separate printed circuit (Flexible Printed Circuit FPC ") and can be connected to a control target such as a display panel.

2 is an enlarged cross-sectional view showing a state in which a display device applicable to an embodiment of the present invention is mounted on a set frame of a set device.

2, the display device according to an embodiment of the present invention includes a display panel 110, a backlight unit 120 for providing light to the display panel, a plastic frame 120 for supporting a backlight unit, And a cover bottom 140 made of a material such as metal for supporting the entire rear surface of the display device. The backlight unit 120 may further include a light source 130, as described with reference to FIG. 1 (b) A light guide plate (LGP) 122 for guiding light from the light source, a reflection plate 124, at least one optical film 128 disposed above the light guide plate, and the like.

The plastic frame 130 of the display device has a rectangular frame structure similar to a frame and at least one step portion can be formed to support the edge of the reflection plate 124 at the bottom portion and the optical film 128 on the top portion can be seated on the step portion, And a light guide plate 122 is disposed between the reflection plate and the optical film.

As described above, the plastic frame 130 is fixed to the cover bottom 140 while the backlight unit 120 is supported by the plastic frame 130, and a display panel such as a liquid crystal display panel or the like is mounted on the backlight unit 120, The final display device is manufactured.

The display device thus constructed is mounted on the set frame 190 of the setting device, and the rear surface of the cover bottom 140, which is the base of the display device, is in contact with the upper surface of the set frame 190 at this time.

2B, the gap G1 between the reflective plate 124 and the cover bottom 140, which is located at the rearmost side of the backlight unit 120, and the gap G1 between the reflection bottom plate 140 and the cover bottom 140 of the display device 100, The gap G2 between the lower surface and the upper surface of the set frame 190 becomes almost " 0 ".

FIG. 3 shows a display failure phenomenon such as a white spot due to a foreign object which may occur when the display device as shown in FIG. 2 is mounted on the setting device.

As described above, when viewed from the display device 100 itself, between the backlight unit 120 and the cover bottom 140, more specifically between the reflection plate 124 of the backlight unit 120 and the cover bottom 140 When a foreign substance 210 is present on the contact surface, foreign matter is dispersed due to such a narrow gap when a pressure is applied from the outside of the display panel, thereby hindering the reflection efficiency of light, ') Or the like can be generated.

In addition, although not shown, foreign matter may be present between the rear surface of the cover bottom 140, which is the rearmost surface of the display device 100, and the top surface of the set frame 190, It is possible to cause defective display such as a white spot phenomenon by spreading too much due to the gap.

As described above, since the interlayer gap in the contact area inside the display device and the contact area between the display device and the external subframe is narrow, foreign substances present in the area spread by the external pressure, resulting in display failure.

Further, the backlight unit reflector of the display device, the cover bottom, the upper surface of the set frame, etc. may not be fully planarized due to limitations in the processing precision, and due to the limitation of the surface planarization, And the display gap between the display device and the external subframe is narrow, the possibility of display failure due to external pressure is further increased.

An embodiment of the present invention is intended to minimize display defects such as foreign object points due to external pressure of the display panel. In some areas of the edges of the plastic frame or bottom cover (metal frame) supporting the backlight unit of the display device, And a holding protrusion.

More specifically, a display device according to an embodiment of the present invention includes a display panel, a backlight unit for providing light to the display panel, and a plastic frame for supporting the backlight unit, And a gap holding protrusion that protrudes outward from the gap holding protrusion.

Hereinafter, the configuration of a display device according to various embodiments of the present invention will be described in detail with reference to FIGS. 4 to 8. FIG.

4 is a cross-sectional view of a display device according to an embodiment of the present invention.

The display device according to the embodiment of FIG. 4 includes a display panel 410 such as a liquid crystal panel, a backlight unit (BLU) 420 disposed behind the display panel to provide light to the display panel, And a plastic frame 430 for supporting one side of the backlight unit. In this plastic frame, a gap maintaining protrusion 432 protruding toward the set frame 490 of the electronic device on which the display device is mounted is formed.

The plastic frame 430 has a rectangular frame like a frame as a whole. The plastic frame 430 includes a backlight outer supporting part 434 for supporting at least one of the light guiding and reflecting plate included in the backlight unit on the outside, And a gap holding protrusion 432 protruding outwardly.

That is, the gap maintaining protrusion 432 protrudes from one side edge of the plastic frame 430 toward the set frame of the set device, and the tip thereof comes into contact with the surface of the set frame 490 so that the reflection plate 424 of the backlight unit A gap or gap 480 is formed between the set frames 490.

Therefore, even when the foreign matter 486 is present inside the display device, more specifically, below the reflection plate 424 of the backlight unit, even if pressure is applied from outside the display panel, foreign matter spreads by this gap or gap 480 at the time of external pressure It is possible to prevent defective display.

Meanwhile, the gap holding protrusion for preventing the foreign object point may be realized in various forms. The construction of the gap holding protrusions in various forms will be described in detail below with reference to FIGS. 5 to 8.

The display panel used in various embodiments of the present invention may be a liquid crystal display panel but is not limited thereto and may be applied to all types of display panels that display information through selective transmission of light provided from a backlight unit such as a plasma display An embodiment may be applied.

In the case where the display panel 410 according to an exemplary embodiment of the present invention is a liquid crystal display panel, a pixel defined in a plurality of gate lines, a data line and a crossing region thereof, and a light- An upper substrate provided with a color filter and / or a black matrix, and a liquid crystal material layer formed therebetween, and the display panel may include a liquid crystal layer And a cover glass (C / G) 450 may be disposed on the upper portion.

A light source (not shown) such as an LED, a light guide plate (LGP) 422 or a diffuser plate for diffusing light to the entire panel area is provided in the backlight unit 420 used in the embodiment of the present invention. An LED control circuit board (not shown) (LED FPC (not shown)) for controlling on / off of the light source, and a light emitting diode Units such as one or more optical films 428 or sheets arranged for use, for example, for protection, and the like.

The light source may include, but is not limited to, a light emitting diode (LED) or a light emitting diode strip, and any type of light source may be used as long as it can provide necessary light to the display panel. The light source is provided at one side edge or one side of the backlight unit, and the light from the light source is diffused to the front of the display panel by the light guide plate 424 described above.

The light guide plate 422 (LGP) may be formed of a rectangular clear plastic sheet that is die-cut, extruded, or injection-molded from a plastic sheet, and light from a light source such as a light emitting diode array, And is diffused across the back surface of the display panel while being totally reflected inside the light guide plate. Light emitted through the flat upper surface of the light guide plate functions as a backlight of the display panel.

The reflection plate 424 is disposed on the rear surface of the light guide plate 422 as a thin plate-like structure coated with a reflection layer having a high reflectance for reflecting the light diffused toward the front surface of the panel through the light guide plate 422 toward the display panel 410 .

At least one frame or chassis may be used as a supporting structure for mounting / supporting the backlight unit 420 such as the light source, the reflection plate 424, the light guide plate 422, etc., Shaped plastic frame 430 supporting a part of the display frame, and may include a cover bottom or a metal frame, which is a frame of a metal material covering the entire display device, .

The cover bottom and the plastic frame 430 may be abbreviated as m-chassis and p-chassis, respectively, and the plastic frame 430 is a rectangular frame-like structure similar to a picture frame, When the display device includes a cover bottom, it is connected to a cover bottom, and is used to accommodate a structure of a backlight unit such as a light source, a reflection plate, and a light guide plate in the cover bottom.

In this specification, the plastic frame 430 refers to all structures of plastic or other elastic materials which can be used in other expressions such as p-chassis, plastic chassis, and the like to support a part of the backlight unit.

4, the display device composed of the display panel 410, the backlight unit 420, the plastic frame 430 and the like is mounted on the set frame 490 of the electronic device, which is a body concept, It is used as a display part.

That is, the display device in this specification includes a display panel such as a liquid crystal panel, a support portion for supporting the display panel and the backlight unit, and at least one printed circuit board (PCB) having a circuit portion for driving a touch operation or a display panel And a main body of an electronic device such as a mobile phone or a tablet PC to which such a display device is mounted is referred to as a " set device ".

In the present specification, a frame in which a display device is installed in a set device that is an electronic device to which a display device is mounted is expressed as a " Set Frame ", but the present invention is not limited thereto. Other terms may be used.

That is, in this specification, a display device including a display panel supported by a plastic frame and the like and a setting device as a main body of an electronic device on which the display device is mounted are separately defined, and among the various components of the setting device, Is defined as a set frame.

4, in order to form a constant gap or gap 480 between the display device and the set frame 490, a plastic frame 430 according to an embodiment of the present invention includes a gap A retaining projection 432 is formed.

Various forms of the plastic frame having such gap holding protrusions 432 will be described with reference to Figs. 5 to 7 below. Fig.

Fig. 5 is an enlarged view of a plastic frame according to a first embodiment of the present invention, wherein Fig. 5 (a) is a perspective view showing only a plastic frame, Fig. 5 (b) Fig.

5, the plastic frame 430 according to an embodiment of the present invention may be a relatively rigid material such as polycarbonate (PC), acrylonitrile butadiene styrene (ABS), or a PC / ABS mixture , Synthetic rubbers, natural rubbers, silicones or other elastomeric materials, but are not limited thereto.

In addition, since the plastic frame 430 is used in a backlight unit, it is exposed to strong light and heat for a long time, and therefore, it is required to have excellent heat resistance characteristics. That is, it is required to be formed of a material which is not deteriorated in performance against heat, in particular, thermal deformation.

Therefore, in order to minimize the deformation of the chassis due to the thermal load and to improve the environmental reliability quality, the material of the plastic frame includes a glass fiber in a certain proportion in the polyphenylene ether (PPE) Materials may be used.

As an example of such a plastic frame material, there can be used a resin containing a basic proportion of polyphenylene ether (PPE) and glass fiber having a good thermal deformation resistance property in a certain ratio, and more specifically, polyphenylene Nonyl HM4025H (Noryl HM4025H) containing 39 to 41% of glass fiber on the basis of ether (PPE) may be used.

This plastic frame 430 has a cross-section of "a", "T", or "c", and may be formed as a whole rectangular frame. However, such square frames may not be integrally formed, and four linear frames may be separately formed and assembled if necessary.

5 (a), the plastic frame 430 according to the embodiment of the present invention is formed in a rectangular frame shape to support the outer periphery of the reflector and support the backlight, A gap holding protrusion 432 protruding outward is formed.

5B is a rear view of the plastic frame 430 coupled with the reflection plate 424. A gap holding protrusion 432 protruding outward is formed at a rear side of the reflection plate.

At this time, the height of the gap maintaining protrusion 432, that is, the degree of protrusion may be about 0.15 mm or more, but is not limited thereto.

6 shows the construction of a plastic frame according to a second embodiment of the present invention.

6, the gap holding protrusions formed on the plastic frame 630 may be formed in two shapes, and the first protrusions 632 on the side where the light source 423 of the backlight unit such as an LED is present And a second protrusion 632 'disposed on the opposite side thereof.

That is, among the four sides of the plastic frame, the first projecting portion 632 provided on the entire first side where the light source of the backlight unit is disposed is formed, and on the second side disposed on the opposite side of the first side, The second protrusion 632 'is formed.

As a result, the first protrusion 632 forms a 'D' shaped protrusion consisting of the whole of the first side and the bent area at both side edges, and the second protrusion 632 ' Shaped protruding region having a " shape "

As shown in Fig. 6, the gap holding projections are formed in two different shapes because the load due to the external pressure is larger than the other side due to the weight of the light source on the side where the light source 423 such as the LED of the backlight unit is disposed .

Accordingly, the first protrusion 632 disposed at the edge where the light source is disposed is formed on the entire sides of the first protrusion 632 to increase the rigidity against the external pressure, and the second protrusion 632 ' It is possible to reduce the material.

7 shows a cross section of an electronic device in which a display device according to a third embodiment of the present invention is used.

7 is an electronic device including a set frame on which a display device is mounted. The display device 700 includes a display panel 710, a backlight unit 720 for providing light to the display panel And a plastic frame 730 that supports the backlight unit and has a gap holding protrusion 732 protruding outward from a part of the edge. The plastic frame 730 is attached to the set frame 790 of the electronic device, Receiving grooves 792 for receiving the gap holding protrusions 732 are formed.

That is, in the embodiment according to Figs. 4 to 6, only the plastic frame 430 of the display device is provided with gap holding protrusions, and the set frame 490 on which the display device is mounted has not undergone any deformation.

7 (a), in the third embodiment of the present invention, the gap holding projections 732 are formed in the plastic frame 730 of the display device, and the electronic devices A receiving groove 792 is formed in the set frame 790 of the apparatus for receiving the projecting portion 732 for holding the clearance of the plastic frame.

That is, in the process of installing the display device 700 on the set frame 790 of the electronic device, the gap maintaining projection 732 of the plastic frame 730 is engaged with the receiving groove 792 of the set frame 790 So that it can be assembled to be inserted.

7, in the process of mounting the display device 700 on the set frame 790 of the electronic apparatus, the gap holding protrusion 732 and the receiving groove 792 of the set frame are formed as a kind of The accuracy of assembly can be improved by providing an alignment function or providing a guide function during assembly.

In other words, in the conventional structure and the embodiment of Figs. 4 to 6, when there is no way to accurately align the positions of the display device and the set frame when the display device is to be mounted on the set frame of the electronic device, The gap holding protrusion 732 may be guided in the receiving groove 792 to improve the ease of assembly or assembly accuracy.

7, the height H1 of the gap maintaining protrusion 732 formed in the plastic frame 730 and the depth H2 of the receiving groove 792 formed in the set frame 790 are different from each other by H1-H2 A gap or gap 780 is formed between the display device and the set frame.

A clearance formed in the plastic frame 730 so that H1-H2, which is the length of the gap 780 as described above, is also greater than or equal to about 0.15 mm because the gap between the gaps that can minimize the white point phenomenon due to foreign substances during external pressure is about 0.15 mm or more. The height H1 of the holding protrusion 732 and the depth H2 of the receiving groove 792 formed in the set frame 790 can be determined.

Fig. 8 shows a display device according to a fourth embodiment of the present invention.

The display device according to the fourth embodiment of Fig. 8 is formed in the cover bottom 840, which is the outermost metal frame, not the plastic frame, as the gap holding protrusion, unlike the previous embodiment.

8, the display device according to the fourth embodiment includes a display panel 810, a backlight unit 820 for providing light to the display panel, a plastic frame 830 for supporting the backlight unit, A gap holding protrusion 842 protruding from a part of the edge of the cover bottom 840 to the outside (that is, toward the set frame side) includes a cover bottom 840 which is combined with the plastic frame to support the back of the backlight unit as a whole, Respectively.

The cover bottom used in the present invention may be used in other expressions such as a base frame, a metal frame, a metal chassis, a chassis base, And may be defined as any type of frame or plate-like structure formed of a material such as a metal disposed at the base of the display device as a support for fixing at least one of the panel and the backlight unit.

However, the cover bottom 840 according to the fourth embodiment of the present invention has a structure in which a predetermined gap 880 is formed between a set frame of an electronic device to be mounted with a display device and a display device, And a gap holding protrusion 842 is formed.

The gap maintaining protrusion 842 formed in the cover bottom 840 may be formed only on one side edge region of the cover bottom 840, similarly to the gap maintaining protrusion 432 of the plastic frame described in the previous embodiment.

In other words, although not shown, the first projecting portion is formed as a first projecting portion extending all along one side of the cover bottom on the side where a light source such as an LED is disposed, and a second projecting portion projecting in an "Lt; / RTI >

Also, unlike the plastic frame, the cover bottom 840 is a plate-like structure made of a metal material, so that the gap-holding protrusion 842 can be formed by forging or punching the metal plate in a predetermined mold.

The height of the gap maintaining protrusion 842 formed in the cover bottom 840 may be about 0.15 mm or more to prevent display failure due to the spread of foreign matter under external pressure, but is not limited thereto.

According to the embodiments of the present invention as described above, a gap holding protrusion is formed in a plastic frame for supporting a backlight unit of a display device so that a gap is formed between the display device and the set frame of the electronic device There is an effect of solving the problem that foreign substances present on the surfaces of the inside and the outside of the display device are dispersed by the external pressure to cause display failure.

According to another embodiment of the present invention, a gap holding protrusion is formed on a part of the cover bottom, which is the outermost support portion of the display device, to form a gap between the display device and the set frame of the electronic device , And a white spot phenomenon due to foreign substances existing on the inner and outer surfaces of the display device can be minimized.

According to another aspect of the present invention, there is provided an electronic device comprising a plastic frame of a display device, a gap holding protrusion formed on the plastic frame of the display device, and a set frame of the electronic device on which the display device is seated and mounted, By forming the receiving groove, it is possible to provide a kind of assembly guide function in the process of installing the display device on the electronic device, and as a result, the convenience of assembly and the accuracy of assembly can be improved as a result.

As a result of applying pressure from the outside of the display panel to the display device to which the embodiment of the present invention is applied, it is confirmed that the load or stress applied to the display panel is significantly reduced.

As a result of the durability simulation in which a center portion of the display panel was pressed with a force of about 0.15 mm with a push rod having a diameter of 5 mm, in the case of a display device according to the related art, the stress in the center portion of the glass was measured to be about 0.5 MPa. In the case of the display device in which the projection for holding the gap due to the gap is formed, the stress in the center portion of the glass is about 0.2 MPa, which reduces the stress by about 60%.

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 inventions. , Separation, substitution, and alteration of the invention will be apparent to those skilled in the art. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

410, 710, 810: display panel 420, 720, 820: backlight unit
430, 730, 830: Plastic frame 840: Cover Bottom
490, 790, 890: set frames 432, 842: gap holding protrusions
434, a backlight unit supporting portion 422: a light guide plate (LGP)
424: reflector 792: receiving groove

Claims (8)

Display panel;
A backlight unit for providing light to the display panel;
And a plastic frame for supporting the backlight unit,
Wherein the plastic frame includes a gap holding protrusion protruding outward from a part of the edge. The method according to claim 1,
Wherein the plastic frame includes a backlight outer support for supporting the reflection plate included in the backlight unit at an outer periphery thereof and the gap maintaining protrusion protrudes from one side edge of the plastic frame toward the set frame of the set device. The method according to claim 1,
Wherein the gap holding protrusion is formed only on the side of the backlight unit where the light source is disposed, the first projection provided on the entire first side of the plastic frame, and the second projection disposed on the opposite side of the first side, And a second projection provided on the second substrate. The method of claim 3,
Wherein the first protrusion is a 'D' shape having an entire area of the first side and a bent area at both side edges, and the second protrusion has a pair of protrusion areas having 'b' shape at the second side edges And the display device. The method according to claim 1,
And the height of the gap holding protrusion is 0.15 mm or more. An electronic device comprising a set frame on which a display device is mounted,
A display device comprising: a display panel; a backlight unit for providing light to the display panel; and a plastic frame supporting the backlight unit, the plastic frame having a gap holding protrusion protruding outward from a part of the edge area;
A set frame for mounting the display device, the set frame including a receiving groove for receiving the gap holding protrusion;
And an electronic device. The method according to claim 6,
Wherein a difference between a height (H1) of the gap holding protrusion and a depth (H2) of the receiving groove is 0.15 mm or more. Display panel;
A backlight unit for providing light to the display panel;
A plastic frame for supporting the backlight unit;
And a cover bottom which is coupled with the plastic frame to support the backlight unit in its entirety and includes a gap holding protrusion protruding toward the set frame in a part of the edge area.

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