KR20180078591A - display device - Google Patents

Abstract

According to the present invention, a guide frame on which a plurality of grooves are formed is disposed between a cover glass and a bottom frame. Moreover, a first adhesive member is applied to a horizontal surface including the plurality of grooves of the guide frame to attach the cover glass. Through this structure, a passage of moisture or dust flowing inside can be effectively blocked and the rigidity against external force can be secured.

Description

Display device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a display device, and more particularly, to a display device capable of effectively preventing moisture and dust from penetrating into a display device.

2. Description of the Related Art [0002] With the development of an information society, demands for a display device for displaying an image have increased in various forms. Recently, a liquid crystal display device (LCD), a plasma display panel (PDP) Various flat display devices such as an electroluminescent display device have been utilized.

Such a display device is provided with a cover glass for shielding the display panel from the outside. That is, a bottom frame for protecting the display panel is provided, and the bottom frame is provided with an inner groove for embedding the display panel. In order to protect the display panel inserted and built in the inner groove of the bottom frame, Glass are combined.

Hereinafter, a display device including a liquid crystal panel will be described as an example with reference to the drawings.

1 is a cross-sectional view schematically showing a conventional display device.

1, the display device 10 includes a liquid crystal panel 11 and a backlight unit 12, a cover glass 16 (see FIG. 1) attached through a second adhesive member L2 to the display surface in front of the liquid crystal panel 11, A liquid crystal panel 11 to which a cover glass 16 is attached and a bottom frame 15 on which a backlight unit 12 is seated.

Here, the cover glass 16 is attached to the upper surface of the side wall of the bottom frame 15 at the edge through the first adhesive member L1.

On the other hand, such a display device 10 has a disadvantage that it is very vulnerable to external moisture. Particularly, when external moisture penetrates into the display device, it is adhered to the front and rear surfaces of the liquid crystal panel 11 by moisture, The polarizing plate is damaged, or the optical sheet of the backlight unit 12 is worn.

Such a difference in brightness causes a smear phenomenon in the image, which causes a problem of deterioration of the display quality of the display device 10.

In addition, deterioration and corrosion of the LED of the backlight unit 12 may be caused by moisture introduced from the outside, thereby lowering the luminous efficiency of the LED or shortening the lifetime of the LED.

Particularly, since the adhesive force of the first adhesive member (L1) for bonding the cover glass (16) and the bottom frame (15) to each other is weakened, the external moisture easily flows into the display device (10).

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a display device capable of effectively improving the adhesion force between a cover glass and a bottom frame to prevent moisture and dust from flowing into the cover glass.

According to an aspect of the present invention, there is provided a display device including a display panel, a cover glass attached to a display surface of the display panel, and a display panel accommodated in the internal space, the display panel including a base portion and a side wall portion vertically bent at the base portion And a guide frame having a rectangular frame shape having first to fourth side faces, wherein the guide frame has a second vertical portion and a second vertical portion which is parallel to the second vertical portion, 3 vertical part and a horizontal part connecting the second vertical part and the third vertical part, wherein the horizontal part of each of the first side surface and the third side facing the first side of the guide frame is made of a metal material The display device comprising a first region and a second region of plastic material, the first region comprising a first groove.

In addition, the second region may include a second groove.

A plurality of the first regions and the second regions may be alternately arranged.

In addition, a first adhesive member may be further provided between the horizontal portion and the third vertical portion and the cover glass.

The guide frame is disposed on the side wall portion. The side wall portion includes a first vertical portion and a seating end. The first vertical portion includes an inner side contacting the second vertical portion, And an upper surface connecting the inner side surface and the outer side surface, wherein the seating end is bent vertically at the inner side and is in contact with a back surface of the guide frame, And a second surface that is bent and is parallel to the outer surface.

Here, a second adhesive member may be disposed between the back surface of the guide frame and the first surface.

The third vertical portion of each of the first side and the third side includes a third region of a metal material and a fourth region of a plastic material, and the third region may contact a portion of the second surface .

In addition, a backlight unit may be further included between the display panel and the base unit.

In the present invention, a guide frame having a plurality of grooves formed between the cover glass and the bottom frame is disposed. Further, a first adhesive member is applied to a horizontal surface including a plurality of grooves of the guide frame to attach the cover glass. Through such a structure, it is possible to effectively block the flow of moisture or dust into the interior and to secure rigidity against external force.

1 is a cross-sectional view schematically showing a conventional display device.
2 is an exploded perspective view schematically showing a display device according to an embodiment of the present invention.
3 is a schematic cross-sectional view of a display device according to the first embodiment of the present invention.
4 is a perspective view schematically showing a state in which a cover glass and a guide frame are combined.
5A is a cross-sectional view taken along line AA of FIG.
Fig. 5B is a cross-sectional view of BB of Fig.
6A is a view schematically showing a force applied to the first adhesive member.
FIG. 6B is a view schematically showing an inflow path of water in accordance with the weakening of the adhesive force of the first adhesive member. FIG.
7 is a schematic cross-sectional view of a display device according to a second embodiment of the present invention.
8A is a perspective view schematically showing a metal frame of a display device according to a second embodiment of the present invention.
8B is a perspective view schematically showing one side of a guide frame including a metal frame.
9A is a cross-sectional view of AA of FIG. 4 of a display device according to a second embodiment of the present invention.
FIG. 9B is a cross-sectional view of BB of FIG. 4 of the display device according to the second embodiment of the present invention. FIG.
10A is a schematic view illustrating a force applied to the first adhesive member of the display device according to the second embodiment of the present invention.
FIG. 10B is a view schematically showing a state in which the moisture inflow path of the display device according to the second embodiment of the present invention is cut off.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

≪ Embodiment 1 >

FIG. 2 is an exploded perspective view schematically showing a display device according to an embodiment of the present invention, and FIG. 3 is a schematic cross-sectional view of a display device according to the first embodiment of the present invention.

The display device 100 includes a display panel 110, a backlight unit 120, a cover glass 160, and a bottom frame 150. As shown in FIG.

Here, the display panel 110 to which the embodiment of the present invention is applied includes a liquid crystal display panel, an electroluminescent display panel, a plasma display panel, an electrophoretic display panel an electrophoretic display panel, and an electrowetting display panel.

Here, when the display panel 110 is an electroluminescent display panel, a plurality of gate lines, data lines, pixels defined in the intersecting regions, and selectively applying an electrical signal to the light emitting layer provided in each pixel An array substrate including a thin film transistor (TFT), which is a switching element for the display panel, and an upper protective substrate, and the backlight unit 120 may be omitted.

Hereinafter, a case where the display panel 110 is a liquid crystal panel will be described as an example.

The direction of the display surface of the liquid crystal panel 110 may be defined as a forward or upward direction (or upward), and a direction opposite thereto may be referred to as a backward or downward direction (or downward) .

 The liquid crystal panel 110 is a part that plays a key role in image display of a liquid crystal display device and includes a first substrate 112 and a second substrate 114 which are bonded to each other and a liquid crystal layer interposed therebetween Time).

Although not shown in the figure, a plurality of gate lines and data lines cross each other on the inner surface of a first substrate 112 called a lower substrate or an array substrate, pixels are defined, and a thin film transistor transistor TFT may be provided and may be connected in a one-to-one correspondence with transparent pixel electrodes formed in each pixel.

At this time, the pixel electrodes are divided into a plurality of pixel electrodes in the form of a bar, are spaced apart from each other, a common wiring is formed in the same layer in parallel with the gate wiring, a plurality of pixel electrodes electrically connected to the common wiring, And a plurality of common electrodes may be formed.

here,  When a plurality of pixel electrodes and a common electrode are spaced apart from each other in a pixel, the liquid crystal panel 110 operates in the IPS mode, and only the plate- The liquid crystal panel 110 may operate in any one of a TN mode, an ECB mode, and a VA mode.

On the inner surface of the second substrate 114 called an upper substrate or a color filter substrate, color filters of red (R), green (G), and blue (B) A black matrix for covering the gate lines, the data lines, and the thin film transistors may be provided.

An upper and a lower alignment film (not shown) for determining the initial alignment direction of the liquid crystal are interposed at the boundary between the first and second substrates 112 and 114 and the liquid crystal layer (not shown) A seal pattern (not shown) may be formed along the edges of the substrates 112 and 114 to prevent leakage of a liquid crystal layer (not shown) filled between the substrates 112 and 114.

The first and second polarizers 119a and 119b selectively transmit only specific light to the outer surfaces of the first and second substrates 112 and 114, respectively.

The printed circuit board may be connected to the liquid crystal panel 110 along one edge thereof via a flexible circuit board or a connection member such as a tape carrier package (TCP).

In the liquid crystal panel 110, when a thin film transistor selected for each gate line is turned on by an on / off signal of a thin film transistor that has been transferred to a gate line, And the alignment direction of the liquid crystal molecules is changed by the electric field between the pixel electrode and the common electrode which is generated thereby, and the difference in transmittance is shown.

In addition, a backlight unit 120 may be provided to supply light from the rear surface of the liquid crystal panel 110 so that the difference in transmittance represented by the liquid crystal panel 110 is externally expressed.

Here, the backlight unit 120 includes an LED assembly 129, a white or silver reflective plate 125, a light guide plate 123 seated on the reflective plate 125, and an optical sheet 121 interposed therebetween .

The LED assembly 129 is a light source of the backlight unit 120 and is disposed at one side to face the light incident surface of the light guide plate 123. The LED assembly 129 includes a plurality of LEDs 129a and a plurality of LEDs 129a, And a PCB 129b.

The light guide plate 123 through which the light emitted from the plurality of LEDs 129a of the LED assembly 129 is incident is formed such that the light incident from the LED 129a travels through the light guide plate 123, So that the liquid crystal panel 110 is provided with a surface light source.

The light guide plate 123 may include a pattern of a specific shape on the lower surface to supply a uniform surface light source. The pattern may be formed in various shapes such as an elliptical pattern, a polygon pattern, a hologram pattern, and the like in order to guide light incident into the light guide plate 123. The pattern is formed on the lower surface of the light guide plate 123 by a printing method or an injection method.

The reflection plate 125 is disposed on the back surface of the light guide plate 123 and reflects light passing through the back surface of the light guide plate 123 toward the liquid crystal panel 110 to improve the brightness of light.

The optical sheet 121 on the light guide plate 123 includes a diffusion sheet and at least one light condensing sheet and diffuses or condenses the light passing through the light guide plate 123 to provide a more uniform surface light source to the liquid crystal panel 110 Let it enter.

The liquid crystal panel 110 and the backlight unit 120 may be accommodated in the bottom frame 150.

Meanwhile, the bottom frame 150 may include a bottom portion 151 and a side wall portion 152.

Here, the base 151 may have a substantially plate shape.

In addition, the side wall portion 152 may be configured to be bent vertically upward from the edges of side edges of the base 151.

In the first embodiment of the present invention, four side wall portions 152 bent upward are formed at each of the four side edges. In this case, the adjacent side wall portions 152 are connected to each other to be formed as a whole .

The liquid crystal panel 110 and the backlight unit 120 can be accommodated in the interior space surrounded by the base 151 and the side wall 152 as described above.

Here, the side wall portion 152 may include a first vertical portion 152a and a seating end 152b.

The first vertical portion 152a has an inner surface S2 in contact with the second vertical portion N1 of the guide frame 130, an outer surface S3 opposite to the inner surface S2, And an upper surface S1 connecting the outer surface S3 and the outer surface S3.

Here, in order to effectively block dust and moisture from the outside, a region where the inner surface S2 of the first vertical portion 152a contacts the second vertical portion N1 may have a constant curvature.

Further, the upper surface S1 may have a constant inclination for aesthetic appearance.

The seating end 152b has a first surface S4 that contacts the back surface of the guide frame 130 and a second surface S5 which is bent downwardly from the first surface S4 and is parallel to the outer surface S3. . ≪ / RTI >

Here, the first surface S4 has a second vertical portion N1 and a horizontal portion N2 of the guide frame 130, and a portion of the second surface S5 is positioned on the first and second sides of the guide frame 130, Can be in contact with the metal material portion of the third vertical portion (N3) included in the three side faces (A1, A3).

In detail, the guide frame 130 can be seated on the side wall portion 152 of the bottom frame 150.

Here, the guide frame 130 may have a rectangular frame shape having first to fourth sides A1, A2, A3, and A4.

Each of the first side surface A1 and the third side surface A3 of the guide frame 130 may be disposed on the major axis and each of the second side surface A2 and the fourth side surface A4 may be disposed on the minor axis.

The guide frame 130 connects the second vertical portion N1 and the third vertical portion N3 parallel to the second vertical portion N1 and the second vertical portion N1 and the third vertical portion N3 And a horizontal portion N2,

The outer surface of the second vertical portion N1 facing the horizontal portion N2 can contact the inner surface S2 of the first vertical portion 152a and the outer surface of the second vertical portion N1 The inner side surface opposite to the side surface can be in contact with the side surface of the cover glass 160.

Further, the upper surface of the second vertical portion N1 may have a constant inclination for aesthetic appearance.

The third vertical portion N3 is formed in parallel with the second vertical portion N1 and the horizontal portion N2 connecting the second vertical portion N1 and the third vertical portion N3, The first adhesive member 130 can have a certain accommodation space in which the first adhesive member L1 can be disposed.

That is, the height of the third vertical portion N3 may be lower than the height of the second vertical portion N1, and the height of the horizontal portion N2 may be lower than the third vertical portion N3.

Accordingly, the first adhesive member L1 can be disposed so as to cover the horizontal portion N2 and the third vertical portion N3.

In the display device 100 according to the first embodiment of the present invention, a metal frame is inserted into the first side A1 of the guide frame 130 and the third side A3 facing the first side A1.

That is, the first side surface A1 and the third side surface A3 of the guide frame 130 can be integrated by injecting a plastic material into the metal material frame through the insert injection process. That is, the first side surface A1 and the third side surface A3 of the guide frame 130 are formed by inserting a metal material frame so that the durability and heat radiation of the display device 100 can be effectively improved.

The horizontal portion N2 of each of the first side surface A1 and the third side surface A3 of the guide frame 130 includes a first region P1 of a metal material and a second region P2 of a plastic material can do.

The third vertical portion N3 of each of the first side surface A1 and the third side surface A3 of the guide frame 130 has a third region P3 made of a metal and a fourth region P4 made of a plastic material. . ≪ / RTI >

The third region P3 of the metal material is brought into close contact with the second surface S5 of the seating end 152b of the bottom frame 150 so that the bottom frame 150 and the guide frame 130 can be stably fixed .

 Further, it is possible to block the inflow path of dust and moisture from the outside, and to have an effective structure for heat dissipation.

The second adhesive member L2 may be disposed between the first surface S4 of the seating end 152b and the guide frame 130. [ Accordingly, the fixing force of the guide frame 130 and the bottom frame 150 is further strengthened, and the inflow of dust and moisture can be blocked more effectively.

Here, the second adhesive member L2 may be a tape having an adhesive force on both sides, but is not limited thereto.

The cover glass 160 may be attached to the display surface of the liquid crystal panel 110. That is, the cover glass 160 and the liquid crystal panel 110 may be attached through an optically clear resin (OCR) or an optically clear adhesive (OCA), but the present invention is not limited thereto.

The cover glass 160 has a larger area than the liquid crystal panel 110 to cover the entire liquid crystal panel 110 and has a shape protruding outward from the liquid crystal panel 110 when viewed in a plan view. In this way, the cover glass 160 is formed in front of the liquid crystal panel 110, so that the cover glass 160 can also protect the front surface of the liquid crystal panel 110.

Here, the edge of the cover glass 160 can be seated on the guide frame 130.

That is, the cover glass 160 may be attached to the horizontal portion N2 and the third vertical portion N3 of the guide frame 130 through the first adhesive member L1 at the edge portion.

 Here, the first adhesive member L1 may be a resin, but is not limited thereto.

Therefore, the first adhesive member L1 can be disposed on the horizontal portion N2 and the third vertical portion N3, and the edge portion of the cover glass 160 can be adhered. For example, the first adhesive member L1 is applied on the horizontal portion N2 and the third vertical portion N3, and the edge portion of the cover glass 160 is attached to the upper portion of the first adhesive member L1 It can be adhered by irradiating UV to cure the first adhesive member L1.

      The horizontal portion N2 and the third vertical portion N3 are adhered to the back surface of the edge of the cover glass 160 so that the cover The glass 160 can be stably fixed to the guide frame 130.

4 is a perspective view schematically showing a cover glass and a guide frame combined with each other. FIG. 5A is a sectional view taken along the line A-A of FIG. 4, and FIG. 5B is a sectional view taken along the line B-B of FIG.

The first to fourth side surfaces A1, A2, A3 and A4 of the rectangular frame-shaped guide frame 130 are bonded to the edge of the cover glass 160. As shown in FIG.

Further, it can be seen that each of the first side surface A1 and the third side surface A3 of the guide frame 130 is provided with a metal frame.

3) of the third vertical portion (N3 in Fig. 3) of the first side surface A1 and the third side surface A3 (P3 in Fig. 3) may be additionally provided with fastening means, May have various shapes and may be arranged at various positions.

As shown in Fig. 5A, the second region (P2 in Fig. 2) of the horizontal portion N2 of each of the first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) As shown in FIG. 5B, the first region (P1 in FIG. 2) of the horizontal portion N2 of the first side (A1 in FIG. 2) and the third side (A3 in FIG. 2) Due to the frame, it can be made of metal.

In addition, each of the second side (A2 in Fig. 2) and the fourth side (A4 in Fig. 2) of which the metal frame is not disposed, ). ≪ / RTI > That is, it can be made of plastic material.

Here, the first adhesive member L1 may be disposed so as to cover the horizontal portion N2 and the third vertical portion N3. Accordingly, the bonding area of the first adhesive member L1 is widened, so that the adhesive force between the guide frame 130 and the cover glass 160 can be improved.

Fig. 6A is a schematic view showing the force exerted by the first adhesive member, and Fig. 6B is a view schematically showing the inflow path of water in accordance with the weakening of the adhesive force of the first adhesive member.

5B) of the guide frame (130 in FIG. 5A) and the third vertical portion (N3 in FIG. 5B) of the guide frame (130 in FIG. 5A) It can be seen that the distribution of the force received by the first adhesive member (L1 in Fig. 5B) is concentrated. At this time, it can be seen that the force Max applied to the first adhesive member (L1 in FIG. 5B) is 26.04 MPa (MegaPascal).

5B) can be weakened. In particular, when the force applied to the first adhesive member (L1 in Fig. 5B) is concentrated, the adhesive force of the first adhesive member The first region (P1 in Fig. 2) of the horizontal portion (N2 in Fig. 5B) of each of the first side face (A1 in Fig. 2) and the third side face (A3 in Fig. 2) is made of a metal material, It can be a water inflow path.

As shown in FIG. 6B, as the adhesive force of the first adhesive member L 1 is weakened, moisture can flow into the space between the cover glass 160 and the guide frame 130 as an inflow path IR.

As described above, in the display device 100 according to the first embodiment of the present invention, the first side surface A1 and the third side surface A3 of the guide frame 130 are formed in a shape in which a metal frame is inserted, 100 can effectively improve durability and heat radiation.

In addition, the bonding area of the first adhesive member (L1) is widened, so that the adhesive force between the guide frame (130) and the cover glass (160) can be improved.

In particular, the first side A1 of the guide frame 130 and the third side A3 of the guide frame 130 can be made thinner by the force of the first adhesive member L1 being concentrated, The first region P1 of each of the horizontal portions N2 is made of a metal material, which is less adhesive force than the plastic material, and moisture or dust may be introduced.

Accordingly, in the second embodiment, a structure in which the force exerted by the first adhesive member L 1 is dispersed and the adhesion of the first region P1 of the metal material is improved to more reliably block the inflow of moisture from the outside Explain it.

≪ Embodiment 2 >

The display device according to the second embodiment of the present invention has a structure different from that of the guide frame of the display device of the first embodiment, and will be described in more detail below. For the sake of convenience of description, a detailed description of a similar configuration to that of the first embodiment may be omitted below.

8A is a perspective view schematically showing a metal frame of a display device according to a second embodiment of the present invention, and FIG. 8B is a cross- 1 is a perspective view schematically showing one side of a guide frame including a frame made of a material.

The display device 200 according to an exemplary embodiment of the present invention includes a display panel 210, a backlight unit 220, a cover glass 260, and a bottom frame 250.

Here, the display panel 210 to which the second embodiment of the present invention is applied includes a liquid crystal display panel, an electroluminescent display panel, a plasma display panel, A display panel, an electrophoretic display panel, and an electrowetting display panel.

Here, when the display panel 210 is an electroluminescent display panel, a plurality of gate lines, data lines, pixels defined in the intersecting regions, and selectively applying an electrical signal to the light emitting layer provided in each pixel An array substrate including a thin film transistor (TFT) which is a switching element for the display panel, and an upper protective substrate. The backlight unit 220 may be omitted.

Hereinafter, a case where the display panel 210 is a liquid crystal panel will be described as an example.

The liquid crystal panel 210 is a part that plays a key role in image display of the liquid crystal display device and includes a first substrate 212 and a second substrate 214 which are bonded to each other and a liquid crystal layer Time).

The first and second polarizers 219a and 219b selectively transmit only specific light to the outer surfaces of the first and second substrates 212 and 214, respectively.

Here, the backlight unit 220 includes a LED assembly (129 in FIG. 2), a white or silver reflector (125 in FIG. 2), and a light guide plate (123 in FIG. 2) And an optical sheet (121 in Fig. 2) interposed therebetween.

Meanwhile, the bottom frame 250 may include a base portion 251 and a side wall portion 252.

Here, the base portion 251 may have a substantially plate shape.

In addition, the side wall portion 252 may be configured to be bent vertically upward from an edge edge side of the base portion 251, that is, the side edge.

In the second embodiment of the present invention, four sidewall portions 252 bent upward are formed in each of the four lateral sides. In this case, the adjacent sidewall portions 252 are connected to each other so as to be integrally formed .

The liquid crystal panel 210 and the backlight unit 220 can be accommodated in the interior space enclosed by the base portion 251 and the side wall portion 252 as described above.

Here, the side wall portion 252 may include a first vertical portion 252a and a seating end 252b.

The first vertical portion 252a has an inner surface S2 in contact with the second vertical portion N1 of the guide frame 230, an outer surface S3 opposite to the inner surface S2, And an upper surface S1 connecting the outer surface S3 and the outer surface S3.

Here, in order to effectively block dust and moisture from the outside, a region where the inner surface S2 of the first vertical portion 252a contacts the second vertical portion N1 may have a constant curvature.

Further, the upper surface S1 may have a constant inclination for aesthetic appearance.

The seating end 252b has a first surface S4 that contacts the back surface of the guide frame 230 and a second surface S5 which is bent downwardly from the first surface S4 and perpendicular to the outer surface S3. . ≪ / RTI >

Here, the first surface S4 has a second vertical portion N1 and a horizontal portion N2 of the guide frame 230, and a portion of the second surface S5 is a portion of the guide frame 230, Can be in contact with the metal material portion of the third vertical portion N3 included in the three sides (A1, A3 in Fig. 2).

In more detail, the guide frame 230 may be seated on the side wall portion 252 of the bottom frame 250.

Here, the guide frame 230 may have a rectangular frame shape having the first side to the four sides (A1, A2, A3, A4 in Fig. 2).

The first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) of the guide frame 230 can be disposed on the long axis and the second side (A2 in Fig. 2) A4) may be arranged in a short axis.

The guide frame 230 includes a second vertical portion N1, a third vertical portion N3 parallel to the second vertical portion N1, a second vertical portion N1 and a third vertical portion N3, And a horizontal portion N2 connecting the upper and lower portions,

The outer surface of the second vertical portion N1 disposed opposite to the horizontal portion N2 may be in contact with the inner surface S2 of the first vertical portion 252a, The inner side opposite to the outer side can be in contact with the side surface of the cover glass 260.

Further, the upper surface of the second vertical portion N1 may have a constant inclination for aesthetic appearance.

The third vertical portion N3 is formed in parallel with the second vertical portion N1 and the horizontal portion N2 connecting the second vertical portion N1 and the third vertical portion N3, The second adhesive member 230 can have a certain accommodation space in which the first adhesive member L 1 can be disposed.

That is, the height of the third vertical portion N3 may be lower than the height of the second vertical portion N1, and the height of the horizontal portion N2 may be lower than the third vertical portion N3.

Accordingly, the first adhesive member L1 can be disposed so as to cover the horizontal portion N2 and the third vertical portion N3.

Here, the display device 200 according to the second embodiment of the present invention has a structure in which a metal frame MF is inserted into each of the first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) .

That is, the first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) can be integrated by injecting a plastic material into the metal material frame MF by the insert injection process. That is, the first side surface (A1 in FIG. 2) and the third side surface (A3 in FIG. 2) of the guide frame 230 are formed by inserting a metal frame MF into the guide frame 230, The heat radiation can be effectively improved.

8B, the horizontal portion N2 of each of the first side surface (A1 in FIG. 2) and the third side surface (A3 in FIG. 2) of the guide frame 230 includes a first region P1 made of a metal, And a second region P2 of material.

Here, a plurality of first regions P1 and second regions P2 may be alternately arranged.

In particular, in the display device 200 according to the second embodiment of the present invention, the first groove H1 may be formed in the first region P1.

Here, the first groove P1 formed in the first region P1 may be formed through a metal material.

That is, the plastic material disposed under the metal material through the metal material may be exposed.

8A, a metal frame MF includes a curved protrusion PR having a constant curvature from the main body BD and the main body BD. Here, the projections PR may be spaced apart and arranged in a plurality of positions.

The protrusion PR is exposed to the horizontal portion N2 of the guide frame 230 to define the first region P1.

The fastening means FM may be disposed below the main body BD. The shape and position of the fastening means FM can be varied.

Particularly, in the display device 200 according to the second embodiment of the present invention, a hole OP may be formed in the projection PR.

The upper surface of the projecting portion PR is exposed to the first region P1 of the horizontal portion N2 while the projecting portion PR is exposed to the upper surface of the horizontal portion N2, The holes OP of the protrusions OP can be formed and the plastic disposed under the protrusions OP can be exposed.

Therefore, the first groove H1 of the first region P1 can be defined by the plastic that is formed below the hole OP formed in the projection PR and the protrusion OP so as to block the lower portion of the hole OP .

As a result, not only the bonding area can be widened but also the first groove H1 is formed in the metal material having a low adhesive force so that the first bonding member L1 is bonded to the plastic material of the lower portion of the first groove H1 So that the adhesive strength can be further improved.

In addition, the second groove H2 may be formed in the second region P2 of the plastic material.

This makes it possible to widen the bonding area of the second area P2 so as to disperse the force received by the first bonding member L1 and to more stably bond the cover glass 260 and the guide frame 230 .

That is, the adhesive force can be improved through the first groove (H1) and the second groove (H2), and the inflow path of moisture and dust can be blocked more effectively.

Here, the first area P1 and the second area P2 of the first side surface (A1 in Fig. 2) and the third side surface (A2 in Fig. 2) of the guide frame 230 can be alternately arranged in plural numbers .

Although the first groove H1 and the second groove H2 are shown in a rectangular shape in the figure, this is an example, and may have various shapes for widening the bonding area.

The third vertical portion N3 of each of the first side face (A1 in Fig. 2) and the third side face (A3 in Fig. 2) of the guide frame 230 has a third region P3 made of a metal and a third region P3 made of a plastic material And a fourth region P4.

The third region P3 of the metal material is brought into close contact with the second surface S5 of the seating end 252b of the bottom frame 250 to stably fix the bottom frame 250 and the guide frame 230 .

 In addition, it is possible to block the inflow path of dust and moisture from the outside, and to have an effective structure for heat dissipation.

The second adhesive member L2 may be disposed between the first surface S4 of the mounting end 252b and the guide frame 230. [ Accordingly, the fixing force of the guide frame 230 and the bottom frame 250 is further strengthened, and the inflow of dust and moisture can be blocked more effectively.

Here, the second adhesive member L2 may be a tape having an adhesive force on both sides, but is not limited thereto.

The cover glass 260 may be attached to the display surface of the liquid crystal panel 210. That is, the cover glass 260 and the liquid crystal panel 210 may be attached through an optically clear resin (OCR) or an optically clear adhesive (OCA), but the present invention is not limited thereto.

The cover glass 260 has a wider area than the liquid crystal panel 210 and covers the entire liquid crystal panel 210 so as to protrude outward from the liquid crystal panel 210 when viewed in a plan view. In this way, the cover glass 260 is formed in front of the liquid crystal panel 210, so that the cover glass 260 can also function to protect the front surface of the liquid crystal panel 210.

Here, the edge of the cover glass 260 can be seated in the guide frame 230.

That is, the cover glass 260 may be attached on the horizontal portion N2 and the third vertical portion N3 of the guide frame 230 through the first adhesive member L1 at the edge portion.

 Here, the first adhesive member L1 may be a resin, but is not limited thereto.

Therefore, the first adhesive member L1 can be disposed on the horizontal portion N2 and the third vertical portion N3, and the edge portion of the cover glass 260 can be adhered. For example, the first adhesive member L1 is applied on the horizontal portion N2 and the third vertical portion N3, and the edge portion of the cover glass 260 is attached to the upper portion of the first adhesive member L1 It can be adhered by irradiating UV to cure the first adhesive member L1.

      The horizontal portion N2 and the third vertical portion N3 are adhered to the rear surface of the edge of the cover glass 260 to cover the cover glass 260, So that the glass 260 can be stably fixed to the guide frame 230.

FIG. 9A is a cross-sectional view of A-A of FIG. 4 of a display device according to a second embodiment of the present invention, and FIG. 9B is a cross-sectional view of B-B of FIG. 4 of a display device according to a second embodiment of the present invention.

8B and 9A, the second area P2 of the horizontal portion N2 of the first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) of the guide frame 230 And the second region P2 may include the second groove H2.

That is, the first adhesive member L1 can be arranged to fill the inside of the second groove H2.

Accordingly, the first adhesive member L1 can be disposed so as to cover the third vertical portion N3 and the horizontal portion N2 including the second groove H2.

This makes it possible to widen the bonding area between the first adhesive member L 1 and the guide frame 230 so that the force received by the first adhesive member L 1 can be dispersed and the cover glass 260 The guide frame 230 can be more stably bonded.

In addition, it is possible to effectively block minute inflow paths of moisture and dust.

8B and 9B, the first region P1 of the horizontal portion N2 of the first side (A1 in Fig. 2) and the third side (A3 in Fig. 2) of the guide frame 230 And may be made of a metal material due to a metal frame (MF in FIG. 8A).

Here, the first region P1 made of a metal may include a first groove H1.

That is, the guide frame 230 is formed by integrally molding a plastic material (MF in FIG. 8A) (disposed on the first side surface and the third side surface) of the metal material by the insert injection process, The plastic material disposed under the metal material frame (MF in FIG. 8A) can be exposed.

The first adhesive member L1 may be disposed so as to fill the inside of the first groove H1.

Accordingly, the first adhesive member L1 can be disposed so as to cover the third vertical portion N3 and the horizontal portion N2 including the first groove H1.

Accordingly, not only the bonding area can be widened but also the first groove H1 is formed in the metal material having low adhesive strength so that the first adhesive member L1 can be bonded to the plastic material of the lower portion of the first groove H1 So that the adhesive force can be further improved.

In addition, it is possible to effectively block minute inflow paths of moisture and dust.

On the other hand, as shown in Fig. 9A, the second side (A2 in Fig. 2) and the fourth side (A4 in Fig. 2) of the metal frame Only the region P2 can be formed. That is, it can be made of plastic material.

10A is a schematic view showing a force exerted by the first adhesive member of the display device according to the second embodiment of the present invention, and FIG. 10B is a cross-sectional view of the display device according to the second embodiment of the present invention, Fig.

As shown in the figure, the region where the first adhesive member L1 is disposed is above the horizontal portion (N2 in FIG. 9B) and the third vertical portion (N3 in FIG. 9B) of the guide frame 230, It can be seen that the force exerted by the first adhesive member L 1 is dispersed. At this time, it can be seen that the force Max applied to the first adhesive member L1 is 23.08 MPa (MegaPascal).

That is, it can be seen that the force applied to the first adhesive member L 1 is reduced under the same conditions.

As described above, the force applied to the first adhesive member L1 of the second embodiment of the present invention is dispersed, so that the cover glass 260 and the guide frame 230 can be stably fixed.

9B) and the second grooves (H1 in FIG. 9B) are formed in the horizontal plane (N2 in FIG. 9B) of the first side face (A1 in FIG. 2) and the third side face (H2 in Fig. 9A), the first adhesive member L1 can be disposed in the first groove (H1 in Fig. 9B) and the second groove (H2 in Fig. 9A).

Accordingly, the bonding area of the first adhesive member L 1 can be widened, so that the cover glass 260 and the guide frame 230 can be stably fixed.

In addition, it is possible to block the fine inflow path (IR) of moisture and dust, thereby improving the performance of the display device 200 and realizing the waterproof function.

As described above, the display device 200 according to the second embodiment of the present invention is configured such that the first side surface A1 and the third side surface A3 of the guide frame 230 are formed by inserting a metal frame MF into the guide frame 230 So that the durability and heat radiation of the display device 200 can be effectively improved.

The first groove H1 and the second groove H2 are provided in the horizontal portion N2 of the first side surface A1 and the third side surface A3 of the guide frame 230, L1 of the guide frame 230 and the guide frame 230 can be widened so that the force received by the first adhesive member L1 can be dispersed and the cover glass 260 and the guide frame 230 can be more stably bonded .

Further, the first groove H1 may be formed in the metal material having a low adhesive force so that the first adhesive member L1 can be bonded to the plastic material of the lower portion of the first groove H1, thereby further improving the adhesive force .

Accordingly, it is possible to block the fine inflow path (IR) of moisture and dust, thereby improving the performance of the display device 200 and realizing the waterproof function.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that

P1: first region P2: second region
P3: third region P4: fourth region
H1: first groove H2: second groove
N1: second vertical part N2: horizontal part
N3: Third vertical section 230: Guide frame

Claims (8)

A display panel;
A cover glass attached to a display surface of the display panel;
A bottom frame which is received in the inner space of the display panel and includes a bottom portion and a side wall portion vertically bent at the bottom portion;
And an edge portion of the cover glass is seated, and a rectangular frame-like guide frame having first to fourth side surfaces
/ RTI >
Wherein the guide frame includes a second vertical portion, a third vertical portion parallel to the second vertical portion, and a horizontal portion connecting the second vertical portion and the third vertical portion,
The horizontal portion of each of the first side surface and the third side facing the first side of the guide frame includes a first region of a metal material and a second region of a plastic material,
Wherein the first region includes a first groove.
The method according to claim 1,
And the second region includes a second groove.
3. The method of claim 2,
Wherein a plurality of the first regions and the second regions are alternately arranged.
The method of claim 3,
And a first adhesive member between the horizontal portion and the third vertical portion and the cover glass.
5. The method of claim 4,
Wherein the guide frame is disposed on the side wall portion,
Wherein the side wall portion includes a first vertical portion and a seating end,
Wherein the first vertical portion includes an inner surface in contact with the second vertical portion, an outer surface opposite to the inner surface, and an upper surface connecting the inner surface and the outer surface,
Wherein the seating end includes a first surface that is bent perpendicularly on the inner surface and contacts the back surface of the guide frame, and a second surface that is bent downward from the first surface and perpendicular to the outer surface, .
6. The method of claim 5,
And a second adhesive member is disposed between the back surface of the guide frame and the first surface.
The method according to claim 6,
The third vertical portion of each of the first side and the third side includes a third region of a metal material and a fourth region of a plastic material,
And the third region is in contact with a part of the second surface.
8. The method according to any one of claims 1 to 7,
Between the display panel and the base unit,
Further comprising:

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