KR20190068779A - Wallpaper liquid crystal display device - Google Patents

Abstract

The present invention relates to a liquid crystal display device having a low power consumption, a high luminance, a light weight and thin type, and a narrow bezel and, more specifically, to a wallpaper liquid crystal display device including the same. The present invention is characterized by realizing the wallpaper liquid crystal display device, which can be easily attached and installed to a wall surface, by including a wall bracket on the back surface of a liquid crystal display device having low power consumption, high luminance, a light weight and thin type, and a narrow bezel. An accommodating groove for accommodating the wall bracket is included on the back surface of a cover bottom of the liquid crystal display device and the wall bracket and the liquid crystal display device can be easily assembled and coupled through a hook and a hook hole, thereby making it easier to attach and install the liquid crystal display device to the wall surface and preventing expansion of the volume of the wallpaper liquid crystal display device due to the wall bracket. Thus, the wallpaper liquid crystal display device can prevent the problem of disfigured appearances thereof due to a large interval from the wall surface, and can quickly release high-temperature heat, generated therein, to the outside by including the outside circulation path and the inside circulation path on the wall bracket.

Description

[0001] Wallpaper liquid crystal display device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device having low power consumption, high brightness, light weight, thinness and narrow bezel, and a wall-paper liquid crystal display device including such a liquid crystal display device.

A liquid crystal display device (LCD), which is advantageous for moving picture display and has a large contrast ratio and is actively used in TVs and monitors, exhibits optical anisotropy and polarization properties of a liquid crystal, And the like.

Such a liquid crystal display device has a liquid crystal panel in which a liquid crystal layer is interposed between two substrates arranged side by side, and an arrangement direction of liquid crystal molecules is changed to an electric field in the liquid crystal panel to realize a difference in transmittance do.

However, since the liquid crystal panel does not have its own light emitting element, a separate light source is required to display the difference in transmittance as an image. To this end, a backlight having a light source is disposed on the back surface of the liquid crystal panel.

1 is a cross-sectional view of a general LCD module.

As shown in the figure, a typical liquid crystal display module includes a liquid crystal panel 10, a backlight unit 20, a guide panel 30, a cover bottom 50, and a top cover 40.

At this time, the liquid crystal panel 10 is composed of first and second substrates 12 and 14, which are parts of the liquid crystal panel 10 that play a key role in image display, 12 and 14 are provided with first and second polarizers 19a and 19b for controlling the polarization direction of light, respectively.

Further, a backlight unit 20 is provided behind the liquid crystal panel 10.

The backlight unit 20 includes an LED assembly 29 arranged along the longitudinal direction of at least one edge of the guide panel 30, a white or silver reflective plate 25 seated on the cover bottom 50, 25, and a plurality of optical sheets 21 interposed therebetween.

The LED assembly 29 is formed on one side of the light guide plate 23 and includes a plurality of LEDs 29a for emitting white light and an LED PCB 29b for mounting the LEDs 29a, Outside the assembly 29, there is an LED housing 28 for dissipating the high temperature heat generated from the LED 29a to the outside.

The liquid crystal panel 10 and the backlight unit 20 are covered with a top cover 40 covering the top edge of the liquid crystal panel 10 with the edges thereof being surrounded by a rectangular guide panel 30, The cover bottoms 50 are integrally joined to each other through the guide panel 30.

A liquid crystal display module having such a configuration is used in the manufacture of an end product (= hereinafter referred to as a liquid crystal display device) of a liquid crystal display device such as a TV and a monitor. In general, a liquid crystal display device includes a front cover 70 and a rear cover 60 which is fastened thereto.

On the other hand, in recent years, such a liquid crystal display device has been widely used as a portable computer, a desktop computer monitor, and a wall-mounted television, and researches to have a massive weight and volume with a large display area It is actively proceeding.

However, in spite of efforts to manufacture a liquid crystal display device with a light weight and a thin thickness, the number of components constituting the liquid crystal display device is so large that the thinness and light weight of the liquid crystal display device are hindered. In addition, it has a disadvantage in that the material cost is large and the assembling and disassembling processes of the liquid crystal display device are complicated.

The liquid crystal display device is intended to realize a narrow bezel that is lightweight and thin, has a wide display area, and a bezel area that is a non-display area other than the display area, but its configuration is also difficult to realize.

Particularly, recently, in order to maximize the space utilization by fixing the liquid crystal display device realizing such lightweight, thin and narrow bezel to the wall surface, the wall mount device for fixing the liquid crystal display device to the wall surface has a large volume, There is a problem that it is difficult to maximize the space utilization.

In addition, since the liquid crystal display device is located far away from the wall surface by the wall-mounted device, the appearance of the liquid crystal display device is poor.

It is a first object of the present invention to provide a wall-paper liquid crystal display device having low power consumption.

A second object of the present invention is to provide a wall paper liquid crystal display device having a narrow bezel and a reduced weight and volume, which can reduce the process cost.

A third object of the present invention is to allow a wall paper liquid crystal display device to be easily attached to a wall surface.

In order to achieve the above object, according to the present invention, there is provided a backlight unit comprising: a backlight unit, a lower surface on which a liquid crystal panel positioned above the backlight unit is housed and having a plurality of hook holes, A liquid crystal display device comprising a cover bottom, a plate-shaped plate fixed to a wall surface, a wall bracket side bent upwardly at an edge of the plate, and a bending portion extending from an end of the wall bracket side Wherein the liquid crystal display device is fixed to the wall surface through the wall bracket positioned in the receiving groove, wherein the liquid crystal display device includes a wall bracket including a connection end, The present invention provides a wall-paper liquid crystal display device.

At this time, a hook is protruded from the coupling end, the hook is inserted into the hook hole, the wall bracket and the cover bottom are assembled and fastened to each other, and the wall bracket is fixed to the wall surface, As shown in FIG.

The receiving groove is formed by a central bottom surface of the lower surface and a bottom surface folded upwardly with a predetermined inclination from the bottom surface of the bottom surface of the central bottom surface, the hook hole is provided on the central bottom surface, A circulation hole is provided on a side surface of the wall bracket, and an external circulation passage corresponding to the circulation hole is provided between the liquid crystal display device and the wall surface.

The backlight unit includes an LED assembly including a plurality of LEDs. The LED assembly is divided into first through sixth LED assemblies. The first through sixth LED assemblies include a plurality of LEDs, And the plurality of LEDs are connected in series through the anode wiring and the cathode wiring, and the input / output ends of the anode wiring and the cathode wiring are provided between the spaced apart portions of the plurality of LEDs, To 6 < th > LED assemblies are connected by soldering to the input / output terminals respectively, and cable holes are provided on the lower surface of the cover bottom, and the first to sixth flexible cables To the backside of the cover bottom.

Here, the first to third flexible cables are connected to the first PCB bridge, the fourth to sixth flexible cables are connected to the second PCB bridge, and the first and second PCB bridges are connected to the external driving circuit And a printed circuit board is connected to one edge of the liquid crystal panel through a connecting member, the printed circuit board is brought into close contact with the backside of the cover bottom, and the driving circuit device mounted on the printed circuit board includes: And is seated in a circuit element hole provided on the lower surface of the cover bottom.

A protective film is provided between the driving circuit element and the reflection plate.

As described above, according to the present invention, a wall-plate liquid crystal display device is provided which is provided with a wall bracket on the back side of a liquid crystal display device having low power consumption, high brightness, light weight, thin shape and narrow bezel, The wall bracket and the liquid crystal display device are easily assembled and fastened to each other through the hook and the hook hole so that the liquid crystal display device can be easily mounted on the wall surface There is an advantageous effect that it can be closely installed, and it is also possible to prevent the wall bracket from increasing the volume of the wall-paper liquid crystal display device.

The wall bracket is provided with an internal air circulating unit and the liquid crystal display also has an external circulation passage. Thus, the liquid crystal display It is possible to rapidly discharge the heat generated at the high temperature to the outside.

1 is a sectional view of a general LCD module.
2 is a cross-sectional view schematically showing a liquid crystal panel and a backlight unit according to an embodiment of the present invention.
Figs. 3A to 3C are schematic views schematically showing an LED assembly of the backlight unit of Fig. 2; Fig.
FIG. 4A is a cross-sectional view schematically showing a liquid crystal display device in which the liquid crystal panel and the backlight unit of FIG.
FIG. 4B is a cross-sectional view taken along the line IV-IV of FIG. 3C. FIG.
Fig. 4C is a rear perspective view schematically showing a rear surface of the modular liquid crystal display device of Fig. 4A. Fig.
FIG. 4D is a sectional view schematically showing a modular liquid crystal display device of FIG. 4A fixed to a wall surface to form a wall-paper liquid crystal display device. FIG.

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

2 is a cross-sectional view schematically showing a liquid crystal panel and a backlight unit according to an embodiment of the present invention.

As shown in the figure, a backlight unit 120 is provided below the liquid crystal panel 110 to emit light toward the liquid crystal panel 110, thereby realizing an identifiable image through the liquid crystal panel 110.

First, the liquid crystal panel 110 plays a key role in image display. The liquid crystal panel 110 includes a first substrate 112 and a second substrate 112, which are bonded to each other with a liquid crystal layer (not shown) therebetween, 114).

At this time, a plurality of gate lines and data lines intersect with each other on the inner surface of the first substrate 112, which is usually called a lower substrate or an array substrate, though not shown in the drawing, And a thin film transistor (TFT) (not shown) is provided at each intersection point and is connected in a one-to-one correspondence with transparent pixel electrodes (not shown) formed in the pixels P1, P2, and P3 .

The color of red (R), green (G), and blue (B) colors corresponding to each pixel P1, P2, and P3 is formed on the inner surface of the second substrate 114, And a black matrix (not shown) covering a non-display element such as a gate line, a data line, and a thin film transistor (not shown), and a color filter (not shown) Further, transparent common electrodes (not shown) are provided to cover them.

In this case, a red (R) pixel P1 including a red color filter (not shown), a green (G) pixel P2 including a green color filter (not shown), and a blue color filter And a blue (B) pixel P3.

Here, the red color filter (not shown) includes a red dye that transmits light of a red wavelength and absorbs light of other wavelengths. The green color filter (not shown) includes a green dye that transmits light of a green wavelength and absorbs light of other wavelengths. The blue color filter (not shown) includes a blue coloring matter which transmits light of a blue wavelength and absorbs light of other wavelengths.

Polarizing plates 119a and 119b (see FIG. 4A) for selectively transmitting only specific light are attached to the outer surfaces of the first and second substrates 112 and 114, respectively.

4A) via a connecting member 116 (see Fig. 4A) such as a flexible circuit board or a tape carrier package (TCP) along at least one edge of such a liquid crystal panel 110. The printed circuit board 117 Are connected to each other, and are brought into close contact with the cover bottom 150 (see Fig.

In this liquid crystal panel 110, when the selected thin film transistor is turned on for each gate line by the on / off signal of the gate driving circuit, the signal voltage of the data driving circuit is transmitted to the corresponding pixel electrode (not shown) And the alignment direction of the liquid crystal molecules is changed by the electric field between the pixel electrode (not shown) and the common electrode (not shown), thereby exhibiting a difference in transmittance.

A backlight unit 120 is provided to supply light to the liquid crystal panel 110. The backlight unit 120 transmits light of a light source emitted from one side of the rear side of the second substrate 112 to the light guide plate 123 Refracted and incident on the liquid crystal panel 110.

The backlight unit 120 includes a light source 128 composed of a plurality of light emitting diodes (LEDs) 128, a light guide plate 123, a green conversion layer 124, an adhesive layer 122, and a prism sheet 121 ).

The plurality of LEDs 128 are respectively mounted on an LED PCB (printed circuit board) 127 to form an LED assembly 129. The LED assembly 129 is fixed in position by a method such as adhesion, Of the light guide plate 123 faces the light entrance surface of the light guide plate 123.

Therefore, the light emitted from each of the LEDs 128 is incident on the light-entering surface of the light guide plate 123 and then refracted toward the liquid crystal panel 110. The light reflected by the reflection plate 125, And is supplied to the liquid crystal panel 110 while being processed into a more uniform high-quality surface light source while passing through the liquid crystal panel 124 and the prism sheet 121.

Here, the plurality of LEDs 128 each comprise a blue LED chip 128a emitting blue light and a magenta LED coated with a red phosphor 128b above the blue LED chip 128a.

That is, the blue light emitted from the blue LED chip 128a is mixed with the red light emitted by the red phosphor 128b, and the magenta light is emitted to the outside.

The light guide plate 123 converts the light emitted from the light sources 128 into a surface light source and irradiates the light toward the liquid crystal panel 110.

Magenta light mixed with blue light and red light is incident on the light guide plate 123 in the embodiment of the present invention. Accordingly, the light guide plate 123 emits magenta light toward the liquid crystal panel 110.

The green conversion layer 124 is formed to overlap the plurality of pixels P1, P2 and P3 on the light guide plate 123. The green conversion layer 124 is formed on the light guide plate 123 in the direction of the liquid crystal panel 110 And the magenta light emitted from the light guide plate 123 is converted into white light.

More specifically, the green conversion layer 124 includes a green light emitting material, and the green light emitting material contained in the green conversion layer 124 absorbs energy of blue light while colliding with a part of blue light included in the magenta light. Accordingly, a part of the blue light is changed to a green light, and the light having passed through the green conversion layer 124 is converted into white light by mixing blue light, red light and green light.

The green luminescent material described above includes a green phosphorescent material or a green fluorescent material and is mixed with a transparent resin material such as a silicone resin to constitute a green conversion layer 124.

The prism sheet 121 located above the green conversion layer 124 condenses the incident light and the adhesive layer 122 is disposed between the green conversion layer 124 and the prism sheet 121, The light conversion layer 122 is formed only on a part of the upper surface of the green conversion layer 124 so that the prism sheet 121 is adhered to the green conversion layer 124 and the air gap 122 gap, A).

At this time, the adhesive layer 122 should be formed so as not to overlap the green (G) pixel P2 so that the green light converted by the green conversion layer 124 can proceed to the green (G) pixel P2 without reducing the luminance . That is, the adhesive layer 122 is formed so as to overlap the red (R) pixel and the blue (B) pixel (P1, P3).

Accordingly, in the liquid crystal display device according to the embodiment of the present invention, the blue light and the green light are absorbed while the white light converted by the green conversion layer 124 passes through the red color filter (not shown) in the red (R) pixel P1 Only red light is emitted.

In the green (G) pixel P2, the white light converted by the green conversion layer 124 passes through the green color filter (not shown) while the blue light and the red light are absorbed and only the green light is emitted. P3, the white light converted by the green conversion layer 124 passes through the blue color filter (not shown) while the red light and the green light are absorbed and only blue light is emitted.

In the liquid crystal display according to the embodiment of the present invention, only the magenta light is emitted from the light sources 129a and green light is generated by the green conversion layer 124. Therefore, the red light and the green light are spatially separated, The green light is generated and the red light emitting material is prevented from absorbing the green light.

Accordingly, the liquid crystal display according to the embodiment of the present invention has an effect of increasing the luminance of light while increasing the green light and increasing the half width of the green peak.

In addition, since the air gap A is formed between the green conversion layer 124 and the prism sheet 121, the light converging function of the prism sheet 121 is inhibited due to scattering characteristics of the green conversion layer 124 due to the green light emitting material Can also be prevented.

As described above, in the liquid crystal display according to the embodiment of the present invention, only magenta light is emitted from the light sources 128, green light is generated by the green conversion layer 124, and the red light and the green light are spatially separated The green light is generated first after the red light is generated, thereby preventing the red light emitting material from absorbing the green light. This brings about an effect of improving the luminance.

Further, by forming the air gap A between the green conversion layer 124 and the prism sheet 121, the brightness can be improved by this, and a liquid crystal display device having high brightness and low power consumption can be realized.

Meanwhile, the liquid crystal display device according to the embodiment of the present invention can provide a liquid crystal display device having a low luminance and a low power consumption, which can reduce a process cost, have a reduced weight and volume and a narrow bezel, It is possible to implement a wall-paper liquid crystal display device which can be easily installed close to a wall surface.

3A to 3C are schematic views schematically showing an LED assembly of the backlight unit of Fig.

3A, the LED assembly of the backlight unit (120 in FIG. 2) according to the embodiment of the present invention is divided into first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f And each of the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f has a plurality of LEDs 128 spaced apart from each other by a surface mount technology (SMT) And is mounted and configured on the PCB 127.

Here, each of the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f includes a plurality of LEDs 128 mounted on the PCB 127, Each of the six LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f is driven by one string.

Therefore, since only one anode wiring 126a and one cathode wiring 126b are provided on the PCB 127 in series for connecting the LEDs 128 in series, it is possible to reduce the width D1 of the PCB 127 do.

Here, the width D1 of the PCB 127 is an important component that determines the thickness of the backlight unit 120 (FIG. 2) of the liquid crystal display device, and the specific gravity occupied by the backlight unit 120 If the width D1 of the PCB 127 is reduced, the thickness of the backlight unit 120 (FIG. 2) can also be reduced, thereby realizing a thin liquid crystal display device.

3B, the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f are respectively connected to the anode 128 through the LEDs 128 spaced apart from each other by a predetermined distance on the PCB 127, And an input and output terminal 126c connected to the cathode wiring 126a and the cathode wiring 126b and a flexible cable 131 for connection with an LED driving circuit (not shown) (not shown) for connecting the LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f and the flexible cable 131 may be omitted by directly connecting them by soldering. The width D1 of the PCB 127 of the LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f can be reduced.

The flexible cable 131 connected to the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e and 129f is connected to the liquid crystal panel 110 and the backlight unit 120, The cover bottom 150 is connected to an external driving circuit 161 on which a LED driving circuit (not shown) is mounted, for the purpose of modularizing the cover bottom 150. As shown in FIG. 3C, A cable hole 152 for extending the flexible cable 131 to the backside of the cover bottom 150 is provided and the plurality of flexible cables 131 are divided into two unit blocks and connected to the first and second PCB bridges 163a and 163b and then connected to the external driving circuit 161 through the first and second PCB bridges 163a and 163b.

That is, the first through sixth flexible cables 129a, 129b, 129c, 129d, 129e, 129f are connected to the PCB 127 of the first through sixth LED assemblies 129a, 129b, 129f, And a cable hole 152 extending to the backside of the cover bottom 150 so that the cover bottom 150 can be connected to the bottom of the cover bottom 150 through the cable hole 152. [ The first to third flexible cables 131a, 131b and 131c of the first through sixth flexible cables 131a, 131b, 131c, 131d, 131e and 131f are connected to the first PCB bridge 163a And the fourth to sixth flexible cables 131d, 131e and 131f are connected to the second PCB bridge 163b.

The first to third flexible cables 131a, 131b and 131c and the first PCB bridge 163a are connected to the first and second flexible cables 131a, 131b and 131c, respectively, Connector 133 and a second connection connector (not shown) provided on the first PCB bridge 163a and engaged with and engaged with the first connection connector 133. The fourth to sixth flexible The cables 131d, 131e and 131f are also connected to each other by inserting a first connection connector 133 provided at an end thereof into a second connection connector (not shown) provided in the second PCB bridge 163b.

The first and second PCB bridges 163a and 163b are connected to the external driving circuit 161 positioned at the backside of the cover bottom 150 so that the LED driving circuit (not shown) mounted on the external driving circuit 161, Off of a plurality of LEDs 128 mounted on each PCB 127 of the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f, / off < / RTI >

Here, the flexible cables 131a, 131b, 131c, 131d, 131e and 131f directly connected to the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e and 129f are directly connected to the cover bottom 150 It is divided into two unit blocks through the first and second PCB bridges 163a and 163b and connected to the external driving circuit 161 without being connected to the external driving circuit 161 located on the backside The first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, and 129f can be easily connected to the external driving circuit 161. FIG.

The first and second PCB bridges 163a and 163b may be made of the same material as the flexible cables 131a, 131b, 131c, 131d, 131e and 131f or may be made of the same material as the PCB 127 .

As described above, in the liquid crystal display according to the embodiment of the present invention, the LED assembly, which is the light source of the backlight unit (120 in FIG. 2), is connected to each of the first to sixth LED assemblies 129a, 129b, 129c, 129d, 129e, And the flexible cables 131a, 131b, 131c, 131d, 131e and 131f are connected to the input / output terminals 126c of the PCB 127 by soldering so that the width of the PCB 127 D1) can be reduced. Thus, a thin liquid crystal display device can be provided.

That is, the liquid crystal display according to the embodiment of the present invention includes a green conversion layer 124 on the upper side of the light guide plate 123 to emit magenta light from the LED 128 as a light source, 2) of the PCB 127 of the backlight unit (120 in Fig. 2) can be provided by providing the air gap (A in Fig. 2) between the sheets 121, ) Can be reduced to provide a thin liquid crystal display device.

In particular, the liquid crystal display device according to the embodiment of the present invention can reduce the process cost, and can provide a liquid crystal display device having a narrow bezel with reduced weight and volume, A liquid crystal display device can be realized.

FIG. 4A is a cross-sectional view schematically showing a liquid crystal display device in which the liquid crystal panel and the backlight unit of FIG. 2 are modularized, and FIG. 4B is a cross-sectional view taken along the line IV-IV of FIG.

FIG. 4C is a rear perspective view schematically showing the rear surface of the modular liquid crystal display device of FIG. 4A. FIG. 4D is a schematic view of a modular liquid crystal display device of FIG. Fig.

4A and 4B, a liquid crystal display 100 according to an exemplary embodiment of the present invention mainly includes a liquid crystal panel 110, a backlight unit 120 (FIG. 2), a guide light 140, (150).

The liquid crystal panel 110 and the backlight unit 120 are integrally modulated through the guide light 140 and the cover bottom 150.

The guide light 140 has a bar shape corresponding to one edge of the LED assembly 129 where the magenta light is emitted and includes a vertical portion 141 and a horizontal portion 143 that is vertically bent from the vertical portion 141 ), And the cross-section has a shape bent in the " a " shape.

This guide light 140 is formed such that the vertical portion 141 surrounds the side surface of the LED assembly 129 and the horizontal portion 143 surrounds the upper region of the LED assembly 129 and the upper region of the light- So as to enclose all the outer sides of the LED assembly 129.

Accordingly, the magenta light emitted from the LED assembly 129 is concentrated in the direction of the light guide plate 123, thereby preventing the magenta light emitted from the LED assembly 129 from leaking to the outside of the backlight unit 120 (FIG. 2) .

The guide light 140 is made of a thin sheet of stainless steel so as to reflect magenta light leaking out to the light guide plate 123 and has a predetermined rigidity so as to provide a modularized liquid crystal display device 100 of the LED assembly 129 is located.

At this time, as the horizontal portion 143 of the guide light 140 extends to cover a part of the upper region of the light guide plate 123 and is covered with the horizontal portion 143 of the guide light 140 made of a thin thin plate material The protection member 180 may be positioned between the upper region of the light guide plate 123 and the horizontal portion 143 of the guide light 140 in order to prevent the light guide plate 123 from being damaged.

The protective member 180 may be formed of at least one of a foam pad, an elastic resin, and an optical clear adhesive (OCA).

The cover bottom 150 which is a basis for assembling the whole structure of the liquid crystal display device 100 has a thin thickness such as aluminum (Al), stainless steel (SUS), cold rolled steel plate (HGI) and electro galvanized steel sheet A lower surface 151 on which a backlight unit (120 in FIG. 2) is seated and a lower surface 151 on which four edges of the lower surface 151 are upwardly and vertically bent, 153a and 153b, and third and fourth sides (not shown) connecting the first and second sides 153a and 153b.

Here, the upward direction defines one direction toward the liquid crystal panel 110 which is seated on the cover bottom 150.

The reflective plate 125 and the light guide plate 123 and the green conversion layer 124 and the prism sheet 121 are sequentially positioned on the lower surface 151 of the cover bottom 150, As shown in FIG.

The second side 153b and the third side and the fourth side (not shown) except for the first side 153a of the edge where the LED assembly 129 of the cover bottom 150 is located are positioned on the first side 153a And an upper surface 153c which is perpendicularly bent toward the lower surface 151 of the lower surface 151a.

At this time, the first side 153a of the edge where the LED assembly 129 is located is out-hemmed from the end, that is, the first side 153a is extended to the first side 153a, And a hemming side 154 which is folded completely outwardly of the side wall 154, so that the overall shape is folded in the form of a "U"

Here, hemming is a process of folding and folding the end of a sheet material. By this process, the stiffness of the product can be increased to suppress warpage, improve the appearance, and eliminate the sharp surface.

The first side 153a of the cover bottom 150 is subjected to the hemming process so that the light emitted from the plurality of LEDs 128 is reflected on the double side surface of the light guide plate 123 And is attached and fixed through the first adhesive member 170a.

At this time, since the first side face 153a of the cover bottom 150 to which the LED assembly 129 is attached and fixed is configured as a double side face, the high temperature heat generated from the LED assembly 129 is absorbed by the cover bottom 150 The first side 153a and the hemming side 154 can easily radiate heat to the outside.

That is, the LED 128 of the LED assembly 129 attached to and fixed to the first side face 153a of the cover bottom 150 is a light emitting device, and the temperature is rapidly increased according to the use time, ) And a change in brightness.

Therefore, one of the most important matters when the LED 128 is used as the light source of the backlight unit 120 (FIG. 2) is the heat radiation design according to the temperature rise of the LED 128.

The liquid crystal display device 100 according to the embodiment of the present invention has the first side 153a and the double side of the hemming side 154 at one edge of the cover bottom 150 where the LED assembly 129 is located The high temperature heat generated from the LEDs 128 is dispersed into the bottom surface 151 through the first side surface 153a, the hemming side surface 154 and the first side surface 153a, . Thereby quickly and efficiently discharging the heat of the high temperature generated from the LED 128 to the outside.

Therefore, it is possible to omit the configuration of the separate LED housing (28 in FIG. 1) for emitting the heat of high temperature generated from the LED 128 to the outside, thereby realizing the lightweight and thin liquid crystal display device 100 .

At this time, the first adhesive member 170a for attaching and fixing the LED assembly 129 to the first side face 153a may be formed of an elastic resin, but the present invention is not limited thereto, a foam pad, an optical clear adhesive (OCA), a double side tape, or the like.

Particularly, the first adhesive member 170a may be made of a TIM (thermal interface material) having adhesiveness so that the high temperature heat generated from the LED assembly 129 can be more quickly transferred to the first side of the cover bottom 150 153a so that the heat of the high temperature generated from the LED 128 can be released to the outside more quickly and efficiently.

The rear edge of the liquid crystal panel 110 is supported by the horizontal portion 143 of the guide light 140 and the upper surface 153c of the cover bottom 150 through the second adhesive member 170b having adhesiveness, And is fixed.

The printed circuit board 117 connected to one edge of the liquid crystal panel 110 through the connection member 116 is brought into close contact with the backside of the cover bottom 150. At this time, And a circuit element hole 155a through which the driving circuit element 117a mounted on the printed circuit board 117 can be seated.

As described above, since the circuit element hole 155a is further provided on the lower surface 151 of the cover bottom 150 and the driving circuit element 150 mounted on the printed circuit board 117 which is brought into close contact with the back surface of the cover bottom 150 117a are mounted on the circuit element hole 155a, a thinner liquid crystal display device 100 can be realized.

At this time, since the driving circuit element 117a is mounted on the circuit element hole 155a provided on the lower surface 151 of the cover bottom 150, the driving circuit element 117a is mounted on the bottom surface 151 of the cover bottom 150, It may be in contact with the reflection plate 125 of FIG. 2 (120). To prevent this, it is preferable to further include a protective film 117b on the upper portion of the driving circuit element 117a.

In the liquid crystal display device 100 according to the embodiment of the present invention, the reflection plate 125 and the light guide plate 123 are sequentially positioned on the lower surface 151 of the cover bottom 150 and the light guide plate 123 is disposed on one side of the light guide plate 123 The LED assembly 129 positioned is attached and fixed to the first side 153a of the cover bottom 150 through the first adhesive member 170a and the liquid crystal panel 110 is guided by the guide light 140 and the upper surface 153c of the cover bottom 150 are attached and fixed via the second adhesive member 170b to the liquid crystal panel 110 and the backlight unit 120 Are integrally modulated through the guide light 140 and the cover bottom 150. [

At this time, the liquid crystal display 100 according to the embodiment of the present invention allows the cover bottom 150 to serve as an outer cover of a display device such as a notebook, a mobile device, and a TV.

That is, the liquid crystal display 100 according to the embodiment of the present invention modulates the liquid crystal panel 110 and the backlight unit (120 in FIG. 2) through the cover bottom 150 and the guide light 140, 150 so that the wall bracket 200 is fixed to an actual wall surface to form a finished product of a wall-mounted liquid crystal display device in which the user can actually use the wall bracket.

Accordingly, the liquid crystal display device 100 of the present invention can be made light and thin, and the process can be simplified. Also, the process cost can be reduced.

The liquid crystal display 100 according to the present invention modulates the liquid crystal panel 110 and the backlight unit 120 through only the guide light 140 and the cover bottom 150, 150) itself also serves as an outer cover, so that a conventional top cover (40 in FIG. 1), a guide panel (30 in FIG. 1), and a separate front cover for accommodating the liquid crystal display module And the rear cover (60 in Fig. 1) can be omitted.

In this way, a lightweight and thin type effect is obtained through omitting a plurality of constituent elements. Particularly, since a top cover (40 in Fig. 1) made of a metal material is omitted, a lighter liquid crystal display device 100 is provided .

In addition, since there is no separate component in front of the liquid crystal panel 110, the display area of the liquid crystal panel 110 is not obscured and the display area is enlarged, and at the same time, a bezel area May also provide a liquid crystal display 100 having a narrow bezel that is reduced.

In particular, the LED assembly 129 is configured such that each of the first through sixth assemblies (129a, 129b, 129c, 129d, 129e, and 129f in FIG. 3b) is driven by a single string, And a cable hole 152 for extending the first PCB bridge 131 to the backside of the cover bottom 150. The plurality of flexible cables 131 are divided into two unit blocks and connected to the first and second PCB bridges 163a and 163b The width of the PCB 127 (D1 in FIG. 3B) can be reduced by connecting the PCB 127 to the external driving circuit 161 through the first and second PCB bridges 163a and 163b, And the first side face 153a of the cover bottom 150 where the LED assembly 129 is located is hemmed to form a double side face so that the LED housing (Fig. 1 It is possible to omit the configuration of the liquid crystal display device 100 of the lightweight and thin type.

A circuit element hole 155a is further provided on the lower surface 151 of the cover bottom 150 so that the driving circuit element 117a mounted on the printed circuit board 117 which is brought into close contact with the rear surface of the cover bottom 150 Is mounted on the circuit element hole 155a, thereby realizing the thin liquid crystal display device 100 through this.

Accordingly, the liquid crystal display device 100 according to the present invention can reduce the process cost while having high brightness and low power consumption, and can provide a liquid crystal display device having a narrow bezel with reduced weight and volume Thus, it is possible to realize a wall-paper liquid crystal display device which can be easily installed close to a wall surface.

The wall bracket 200 is provided with a plurality of hooks 203 protruding from the wall bracket 200 and the liquid crystal display device 100 is mounted on the rear wall of the liquid crystal display device 100, The cover bottom 150 of the wall bracket 150 is provided with a receiving groove 157 for receiving the wall bracket 200.

That is, the bottom surface 151 of the cover bottom 150 is provided with the receiving groove 157 as a rear surface. To this end, the bottom surface 151 has a central bottom surface 151a and a central bottom surface 151a. And a bottom fold 151c which is bent upward to have a predetermined inclination from the bottom edge 151b between the central bottom face 151a and the bottom edge 151b.

The rear surface of the cover bottom 150 defines the concave receiving groove 157 through the bottom folded end 151c and the rear surface of the central bottom surface 151a.

At this time, a plurality of hook holes 155b corresponding to the hooks 203 of the wall bracket 200 are provided on the central bottom surface 151a of the receiving groove 157.

4C, the wall bracket 200 is plate-shaped and includes a plate-like plate 201a and an upwardly bent edge of the plate 201a so as to have a predetermined inclination, And includes a coupling end 201c which is bent and extended outward from the end of the wall bracket side face 201a.

The wall bracket 200 is located in the receiving groove 157 provided on the back surface of the liquid crystal display device 100 so that the plate 201a, the wall bracket side 201b and the cover bottom 150 of the wall bracket 200, The coupling end 201c is brought into close contact with the central bottom face 151a of the cover bottom 150 so that the coupling end 201c is projected on the coupling end 201c The hook 203 is inserted into the hook hole 155b provided in the central bottom surface 151a of the cover bottom 150. [

4D, when the wall bracket 200 is fixed to the wall surface, the cover 203 of the liquid crystal display device 100 is attached to the hook 203 provided at the coupling end 201c of the wall bracket 200, And a hook hole 155b provided on the central bottom surface 151a of the display unit 150 is inserted and implemented to realize a wall-paper liquid crystal display device.

The wall bracket 200 is located in the receiving groove 157 provided on the back surface of the cover bottom 150 of the liquid crystal display device 100. In the process of fixing the liquid crystal display device 100 to the wall surface, It is possible to prevent the volume of the wall-paper-type liquid crystal display device according to the present invention from becoming large.

As the wall bracket 200 according to the embodiment of the present invention is positioned in the receiving groove 157, the liquid crystal display device 100 is positioned close to the wall surface, It is also possible to prevent such a problem.

A circulation hole 205 for forming an external circulation passage of the internal air circulation unit B is further provided at one side of the wall bracket side 201b and a circulation hole 205 provided in the wall bracket side 201b. One edge of the liquid crystal display device 100 corresponding to the liquid crystal display panel 100 is formed to have a width narrower than the width D3 of the other edge of the other edge so that the outer circumferential passage C ).

That is, the high-temperature heat generated in the process of driving the liquid crystal display device 100 is transmitted to the internal air circulation unit B of the wall bracket 200 positioned at the rear surface of the cover bottom 150, The high temperature heat transferred to the portion B can be rapidly discharged to the outside through the circulation hole 205 provided in the wall bracket side 201b and the external circulation passage C. [

Accordingly, the wall-paper liquid crystal display device according to the embodiment of the present invention can quickly release the high-temperature heat generated in the liquid crystal display device 100 to the outside, It is possible to prevent a problem that reliability of a circuit element or the like is lowered.

As described above, the liquid crystal display 100 according to the embodiment of the present invention includes the green conversion layer 124 on the upper side of the light guide plate 123 to emit magenta light from the LED 128 as the light source, By forming an air gap (A in Fig. 2) between the layer 124 and the prism sheet 121, it is possible to provide the liquid crystal display device 100 having high brightness and low power consumption. The liquid crystal panel 110 and the backlight unit 120 are modularized only through the guide light 140 and the cover bottom 150 so that the cover bottom 150 itself serves as the outer cover. Thin, and narrow bezel.

In particular, the LED assembly 129 is configured such that each of the first through sixth assemblies (129a, 129b, 129c, 129d, 129e, and 129f in FIG. 3b) is driven by a single string, And a cable hole 152 for extending the first PCB bridge 131 to the backside of the cover bottom 150. The plurality of flexible cables 131 are divided into two unit blocks and connected to the first and second PCB bridges 163a and 163b The width of the PCB 127 (D1 in FIG. 3B) can be reduced by connecting the PCB 127 to the external driving circuit 161 through the first and second PCB bridges 163a and 163b, And the first side face 153a of the cover bottom 150 where the LED assembly 129 is located is hemmed to form a double side face so that the LED housing (Fig. 1 It is possible to omit the configuration of the liquid crystal display device 100 of the lightweight and thin type.

A circuit element hole 155a is further provided on the lower surface 151 of the cover bottom 150 so that the driving circuit element 117a mounted on the printed circuit board 117 which is brought into close contact with the rear surface of the cover bottom 150 Is mounted on the circuit element hole 155a, thereby realizing the thin liquid crystal display device 100 through this.

As described above, the liquid crystal display device 100, which realizes a low power consumption, a high brightness, a light weight and a thin thickness, can realize a wall paper liquid crystal display device provided with a wall bracket 200 on the back side and being easily installed close to a wall surface.

The wall bracket 200 and the liquid crystal display device 100 are connected to a hook (not shown) at the back surface of the cover bottom 150 of the liquid crystal display device 100, 203 and the hook hole 155b so that the liquid crystal display device 100 can be attached to the wall surface more easily and the volume of the wall-plate liquid crystal display device is increased by the wall bracket 200 Can be prevented.

In addition, since the liquid crystal display device 100 is placed in close contact with the wall surface by the wall bracket 200, it is possible to prevent a problem that the wall-paper liquid crystal display device is far from the wall surface and the appearance is poor.

Particularly, since the wall bracket 200 is provided with the internal air circulation portion B and the liquid crystal display device 100 is provided with the external circulation passage C, the wall-paper liquid crystal display device according to the embodiment of the present invention can display the liquid crystal display The heat of the high temperature generated in the apparatus 100 can be quickly released to the outside.

The present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

100: liquid crystal display
110: liquid crystal panel (112, 114: first and second substrates)
116: connecting member, 117: printed circuit board (117a: driving circuit element, 117b: protective film)
119a and 119b:
121: prism sheet, 123: light guide plate, 124: green conversion layer, 125:
129: LED assembly (128: LED, 127: PCB)
140: guide light (141: vertical portion, 143: horizontal portion)
The circuit element 151 includes a cover bottom 151 and a bottom surface 151a at the central bottom 151b at the bottom edge 151c at the bottom end 153a 153b first and second side surfaces 153c top surface 154 hemming side 155a circuit element Hole, 155b: hook hole, 157: storage groove)
170a, 170b: first and second adhesive members
180: protective member
200: wall bracket (201a: plate, 201b: wall bracket side, 201c: coupling end)
203: Hook

Claims (9)

A liquid crystal display (LCD) device comprising: a backlight unit; a bottom surface for receiving a liquid crystal panel positioned above the backlight unit; a bottom surface having a plurality of hook holes; and a cover bottom having a receiving groove formed outside the bottom surface;
The wall bracket includes a plate-shaped plate fixed to a wall surface, a wall bracket side edge of which the edge of the plate is bent upward, and a wall bracket including a coupling end extending from the end of the side wall bracket,
/ RTI >
A part of the backside of the cover bottom is the outermost structure of the entire rear surface of the liquid crystal display device,
Wherein the liquid crystal display device is fixed to the wall surface through the wall bracket positioned in the receiving groove.
The method according to claim 1,
The hooks are inserted into the hook holes, and the wall bracket and the cover bottom are assembled and fastened to each other,
Wherein the wall bracket is not exposed to the outside of the liquid crystal display device fixed to the wall surface.
The method according to claim 1,
Wherein the hook hole is formed by a central bottom surface of the lower surface of the lower surface and a lower surface bent edge bent upwardly with a predetermined inclination from a bottom surface of the lower surface of the central bottom surface, .
The method according to claim 1,
Wherein a wall of the wall bracket is provided with a circulation hole and an outer circulation passage corresponding to the circulation hole is provided between the liquid crystal display device and the wall surface.
The method according to claim 1,
The backlight unit includes an LED assembly including a plurality of LEDs,
The LED assembly is divided into first to sixth LED assemblies,
The plurality of LEDs are connected in series through the anode wiring and the cathode wiring, and the plurality of LEDs are connected in series between the anode wiring and the cathode wiring. An anode wiring and an input / output terminal of the cathode wiring,
And the first to sixth flexible cables are connected to the input / output ends of the first to sixth LED assemblies, respectively, by soldering.
6. The method of claim 5,
And a cable hole is provided on the lower surface of the cover bottom to extend the first to sixth flexible cables to the backside of the cover bottom.
The method according to claim 6,
The first to third flexible cables are connected to a first PCB bridge, the fourth to sixth flexible cables are connected to a second PCB bridge, and the first and second PCB bridges are connected to an external driving circuit Walled liquid crystal display device.
The method according to claim 1,
A printed circuit board is connected to one edge of the liquid crystal panel through a connecting member, the printed circuit board is brought into close contact with the backside of the cover bottom,
And the driving circuit elements mounted on the printed circuit board are seated in the circuit element holes provided on the lower surface of the cover bottom.
9. The method of claim 8,
And a protective film is provided between the driving circuit element and the reflective plate.

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