KR101908507B1 - Flat panel type image panel display device and mathod for manufacturing the same - Google Patents

Abstract

The present invention relates to a planar image display apparatus and a flat display apparatus which can improve the assembling efficiency of the front cover or the bezel forming the frame of the flat display apparatus by changing the assembly structure of the front cover or the bezel and the bottom cover, A panel guide for fixing the display panel so that a part of a side surface or a rear surface of the display panel for displaying an image is seated; A bottom cover formed to accommodate a rear surface and a side surface of the panel guide so that the panel guide is received or seated; A front cover bent to surround a front outer surface of the display panel and a side surface of the bottom cover; And a plurality of latch type fastening members fastened to the back surface fixing parts of the front cover and each of the latch type fastening members formed to surround a part of the back surface of the bottom cover to fasten the front cover and the bottom cover with the fastening bolts .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flat panel display,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat display device, and more particularly, to a display device having a front cover or a bezel which is a frame of a flat display device, And more particularly, to a flat panel display device and an assembly method thereof.

2. Description of the Related Art Flat panel display devices used in monitors for personal computers, portable terminals and various information devices include liquid crystal display devices, plasma display devices, field emission display devices Field Emission Display Device and Light Emitting Display Device are emerging.

In such various flat panel display devices, a display panel for displaying an image is mounted on a separate guide bracket or a panel guide, and is assembled inside a front cover, a bezel and a back cover (bottom cover) forming the outer frame of the flat panel display . Particularly, in the case of a liquid crystal display device, since the liquid crystal panel itself can not emit light, it is assembled together with a panel guide and a back cover so that a backlight unit or the like is further provided on the back surface thereof.

However, in the conventional flat panel display devices as described above, the panel guide to which the display panel is fixed is assembled to a backlight unit or a back cover by a separate bracket or a fixer, and then assembled with a front cover So that they are assembled in a somewhat complicated form. Particularly, after the assembly bolts are assembled in the lateral direction, the assembly bolts for assembling the front cover are separately assembled in the rear direction. In this case, the width of the front cover or the bezel has been limited. However, since the assembling bolts have to be assembled separately in the side and back directions, the assembling efficiency is lowered, There was also an increasing problem. Particularly, since the assembling structure is complicated, it is necessary to further improve the problem that it becomes difficult to develop and produce a product with a smaller thickness.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to improve the assembling efficiency of the front cover or the bezel which is formed as a frame of the flat display device by making the front cover or the bezel and the bottom cover thinner. And an object thereof is to provide a flat display device and a method of assembling the same.

According to an aspect of the present invention, there is provided a flat panel display, including: a panel guide for fixing a display panel to a display panel, A bottom cover formed to accommodate a rear surface and a side surface of the panel guide so that the panel guide is received or seated; A front cover bent to surround a front outer surface of the display panel and a side surface of the bottom cover; And a plurality of latch type fastening members fastened to the back surface fixing parts of the front cover and each of the latch type fastening members formed to surround a part of the back surface of the bottom cover to fasten the front cover and the bottom cover with the fastening bolts .

The latch-type fastening member may include a flat support portion that supports a part of the back surface of the bottom cover, a fixing portion that is protruded at least twice from one side of the flat support portion and is fastened to an annular rear fixing portion formed on the back surface of the front cover And at least one fixing hole formed in the flat support portion so that at least one fastening bolt penetrates through the fixing hole.

The fixing protrusion protruding at least twice in a folded form is first fastened to the rear fixing part formed on the back surface of the front cover and the flat support part supports a part of the back surface of the bottom cover, And is fastened to the fastening hole of the bottom cover through the fixing hole of the supporting portion.

Wherein at least one protruding support portion is formed in the outer periphery of the back cover of the bottom cover in addition to a fastening hole to which the fastening bolts are fastened, and the flat support portion of the latch- And a supporting member fastener corresponding to the size of the support member is further formed.

The fixing protrusion protruding at least twice in a folded form is first fastened to the annular rear fixing part of the front cover and then the supporting part fastening part of the flat supporting part is fastened to the protrusion supporting part of the bottom cover, And the at least one fastening bolt is passed through at least one fixing hole of the flat supporting part so as to be fastened to the fastening hole of the bottom cover.

According to another aspect of the present invention, there is provided a method of assembling a flat panel display, the method comprising the steps of: placing a part of a side surface or a rear surface of a display panel for displaying an image on a panel guide to fix the display panel; Receiving or seating the panel guide in a bottom cover configured to accommodate a back surface and a side surface of the panel guide; Assembling the front cover formed by folding at least once so as to surround the front outer surface of the display panel and the side surface of the bottom cover; And a plurality of latch-type fastening members are positioned to surround a part of the rear surface of the bottom cover, and then the plurality of latch-type fastening members are fastened to the latch- And fastening the front cover and the bottom cover to each other.

The latch-type fastening member may include a flat support portion that supports a part of the back surface of the bottom cover, a fixing portion that is protruded at least twice from one side of the flat support portion and is fastened to an annular rear fixing portion formed on the back surface of the front cover And at least one fixing hole formed in the flat support portion so that at least one fastening bolt penetrates through the fixing hole.

Wherein the step of fastening the front cover and the bottom cover comprises the steps of first fastening the fixing protrusion protruding in the bent form at least twice to the rear fixing part formed on the back surface of the front cover, . And engaging the at least one fastening bolt with a fastening hole of the bottom cover through the fastening hole of the flat support.

Wherein at least one protruding support portion is formed in the outer periphery of the back cover of the bottom cover in addition to a fastening hole to which the fastening bolts are fastened, and the flat support portion of the latch- And a supporting member fastener corresponding to the size of the support member is further formed.

Wherein the step of fastening the front cover and the bottom cover comprises the steps of first fastening the fixing protrusion protruded in the bent form at least twice to the annular rear fixing part of the front cover, A step of fixing the lower surface of the bottom cover to the lower surface of the bottom cover, fixing the lower surface of the bottom cover to the lower surface of the bottom cover, The method comprising the steps of:

According to an embodiment of the present invention, there is provided a flat display device and a method of assembling the flat display device. The front cover, the bezel, and the bottom cover are assembled to form a front cover So that the bezel can be formed more narrowly. In this case, the slim bezel structure (Narrow Bezel) in terms of design can be developed and produced to meet the users' desired trends. In addition, the simpler assembly structure can improve the assembly efficiency and reduce the manufacturing cost.

1 is an exploded perspective view schematically showing a liquid crystal display device according to an embodiment of the present invention.
FIG. 2 is a rear perspective view showing a rear surface of the liquid crystal display device of FIG. 1 assembled; FIG.
FIG. 3A and FIG. 3B are views showing a latch type fastening member of FIG. 1 in detail; FIG.
FIGS. 4A and 4B are perspective views showing the fastening shapes of the areas A and B of FIG. 2, respectively. FIG.
5 is a cross-sectional perspective view specifically showing a cross-sectional view taken along a line II 'in a state in which the liquid crystal display device of FIG. 1 is assembled.
6 is a cross-sectional perspective view of another embodiment of the liquid crystal display device of FIG.

Hereinafter, a flat panel display device and a method of assembling the flat panel display device according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As the flat panel display device of the present invention, a plasma display panel and a field emission display device can be applied in addition to a liquid crystal display device and an organic light emitting display device. The technical features of the present invention are applicable to all of the flat panel display devices described above, but an example applied to the liquid crystal display device will be described below for convenience of explanation.

1 is an exploded perspective view schematically showing a liquid crystal display device according to an embodiment of the present invention. 2 is a rear perspective view showing the rear surface of the liquid crystal display device of FIG. 1 assembled.

The liquid crystal display device shown in Figs. 1 and 2 includes a liquid crystal panel 100 for displaying an image; A panel guide 90 for fixing the liquid crystal panel 100 such that a part of a side surface or a rear surface of the liquid crystal panel 100 is seated; A bottom cover 10 formed to accommodate a rear surface and a side surface portion of the panel guide 90 so that the panel guide 90 is received or seated; A front cover (or a bezel) 130 configured to surround the front and outer sides of the liquid crystal panel 100 and the bottom cover 10; And the bottom cover 130 are fixed to the rear fixing portions 130a of the front cover 130 so as to cover a part of the bottom surface of the bottom cover 10. The front cover 130 and the bottom cover 130 are fixed by the respective fastening bolts 22, 10) of the latch-type fastening members (20).

The liquid crystal display further includes a backlight unit 2 for irradiating light to the liquid crystal panel 100. The backlight unit 2 is accommodated in a separate inner cover or the bottom cover 10 to form a liquid crystal panel 100). The inner cover accommodates the backlight unit 2 and is housed or seated in the bottom cover 10 together with the panel guide 90.

The liquid crystal panel 100 is attached to the front surface of the panel guide 90 in a state where a thin bezel is formed on the outer periphery of the front surface of the liquid crystal panel 100 and displays an image by adjusting the transmittance of light from the backlight unit 2. The liquid crystal panel 100 includes a liquid crystal (not shown) formed between a lower substrate 102 and an upper substrate 104, a lower substrate 102 and an upper substrate 104, a lower substrate 102, And a spacer (not shown) that maintains a constant distance between the electrodes 104 and 104.

The upper substrate 104 is further provided with blue, red, and green color filters, a black matrix, a common electrode, and the like.

The lower substrate 102 includes a thin film transistor formed in each cell region defined by data lines and gate lines, and a pixel electrode connected to the thin film transistor. The thin film transistor switches the image signal supplied from the data line to the pixel electrode in response to the gate-on voltage supplied from the gate line. Here, the common electrode formed on the upper substrate 104 may be formed on the lower substrate 102 depending on the mode of the liquid crystal.

A non-display region of the lower substrate 102 is provided with a data pad region connected to each of the data lines and a gate pad region connected to each of the gate lines.

In the data pad region, a plurality of data circuit films (not shown) mounted with a data integration circuit for supplying image signals to the data lines are attached. Each data circuit film may be a tape carrier package or a chip on film. Each data circuit film supplies a data signal or the like from a data printed circuit board (not shown) to a data integration circuit, and supplies an image signal output from the data integration circuit to each data line. Meanwhile, the data integrated circuit may be mounted on the lower substrate 102 by a chip on glass method. In this case, the data integrated circuit mounted on the lower substrate 102 is supplied with a data signal or the like from the data printed circuit board through the data circuit film.

A plurality of gate circuit films (not shown) mounted with gate integrated circuits for supplying gate-on voltages to the gate lines are attached to the gate pad regions. Each gate circuit film may be a tape carrier package or a chip on film or the like. Each gate circuit film supplies a gate control signal supplied from a data printed circuit board through a data circuit film and a lower substrate 102 to a gate integrated circuit and supplies a gate on voltage output from the gate integrated circuit to each gate line Supply. Here, the gate integrated circuit may be mounted on the lower substrate 102 by a chip on glass method, or may be formed on the lower substrate 102 together with the manufacturing process of the thin film transistor.

The panel guide 90 is mounted on the side surface of the bottom cover 10 so as to cover the entire outer surface of the backlight unit 2 and to cover the side surface of the bottom cover 10. The panel guide 90 has a panel supporting portion for supporting the rear outer surface of the liquid crystal panel 100 on the front surface. A double-sided adhesive member or an assembling member is formed on the front surface of the panel supporting part to be adhered or fixed to the back non-display area of the liquid crystal panel 100.

The front cover 130 is bent so as to cover the front non-display area of the liquid crystal panel 100 and the front outer side of the bottom cover 10. [ At this time, a ring-shaped rear fixing part 130a is formed on the outer surface of the front surface of the front cover 130 to fix the fastening member 20 and the fastening bolt 22 together with the panel guide 90 and the bottom cover 10. [ Are assembled and assembled together at the same time. The front cover 130 may be made of plastic or the like to form an outer appearance of the liquid crystal display device. In recent years, the thickness and the front width of the bezel have been made thinner and narrower, The width is also thin and narrow.

The backlight unit 2 located on the back surface of the panel guide 90 is accommodated in an inner cover or a bottom cover 10 not shown and includes a plurality of light sources 40, A light source fixing part 41 fixed on the inner side surface of the bottom cover 10 by mounting the light source 40 of the bottom cover 10 and a light incident side surface from each light source 40, And a plurality of optical sheets (80) arranged on the diffuser plate (70) for vertically emitting light from the diffuser plate (70). Here, the light source fixing part 41, in which a plurality of light sources 40 are mounted, is fixed to at least one side of the bottom cover 10.

Each of the plurality of light sources 40 is detachably mounted on the light source fixing part 41 and positioned to face the side light incidence surface of the diffusion plate 70. Here, as the plurality of light sources 40, light emitting diodes such as white, red, green, and blue, or ultraviolet light emitting diodes may be used. Each of the plurality of light sources 40 is illuminated by the light source driving power source supplied through the light source fixing unit 41 and irradiates the light to the side incidence surface of the diffuser plate 70.

The light source fixing unit 41 is provided with a plurality of light sources 40 on at least one side of the bottom cover 10 and supplies the light source driving power from the outside to the plurality of light sources 40. In other words, the light source fixing unit 41 is formed of a printed circuit board or the like, and when a plurality of light sources 40 are mounted, a light source driving power source, which is transmitted from the outside through a pattern or wiring formed on the light source fixing unit 41, (40).

The diffusion plate 70 is stacked on the inner bottom surface of the bottom cover 10, that is, the front opening of the bottom cover 10 having a rectangular frame shape. At this time, the side surface of the diffusion plate 70 is positioned on the front surface of the light source fixing portion 41, that is, the side surface of the diffusion plate 70 faces the light source fixing portion 41. The diffusion plate 70 converts the path of the light emitted from each light source 40 to the side incidence surface to diffuse the entire surface of the entire surface of the liquid crystal panel 100 to the entire rear surface of the liquid crystal panel 100. 2, a reflection sheet is further provided between the back surface of the diffusion plate 70 and the bottom cover 10 so that light emitted to the back surface of the diffusion plate 70 is transmitted to the back surface of the diffusion plate 70, (70).

The plurality of optical sheets 80 diffuse through the diffusion plate 70 to adjust the optical path so that the incident light is perpendicularly irradiated to the liquid crystal panel 100. Here, the plurality of optical sheets 80 are sequentially stacked on the diffuser plate 70. The plurality of optical sheets 80 includes at least one prism sheet 82 for condensing the light diffused by the diffuser plate 70, a polarizing sheet 84 and a protective sheet (not shown) . At this time, the types of sheets to be stacked and the order in which the sheets are stacked can be converted and set according to the intended use of the backlight unit 10. [

The bottom cover 10 may be formed in the shape of a rectangular frame with its front surface opened, and a panel guide 90 including the backlight unit 2 is partially accommodated or seated therein. At the rear outer side of the bottom cover 10, particularly, at positions corresponding to the respective latch type fastening members 20 and fastening bolt 22 fastening positions, fastening holes are respectively formed in the fastening bolts 22 The latch-type fastening members 20 are assembled.

The plurality of latch type fastening members 20 are fastened at one side to the annular back fixing parts 130a formed on the back surface of the front cover 130 and the other side is fastened to a part of the back surface of the bottom cover 10 So that the front cover 130 and the bottom cover 10 are fixed by the respective fastening bolts 22.

FIGS. 3A and 3B are views showing a latch type fastening member of FIG. 1 in detail.

The latch type fastening member 20 shown in Figs. 3A and 3B projects in a bent form at least twice from one side of the flat supporting portion 20c, a flat supporting portion 20c supporting a part of the back side of the bottom cover 10 A fixing protrusion 20b to be fastened to an annular back fixing part 130a formed on the back surface of the front cover 130 and a fixing hole 20b formed to have at least one fastening bolt 22 through the flat supporting part 20c, (20a).

 The plurality of latch type fastening members 20 are formed of a metal or an alloy material such as aluminum and have a predetermined elastic force and are fastened to the fixing hole 20a and the rear surface of the front cover 130. [ The front cover 130 and the bottom cover 10 are fixed by the structure of the fixing projection 20b fastened to the door 130a.

The plurality of latch type fastening members 20 are fastened at a predetermined interval set at a predetermined interval on the back surface of the bottom cover 10 and the number of the latch type fastening members 20 is determined by the size of the front cover 130 and the bottom cover 10, May be applied differently depending on the size of the image display device.

Figs. 4A and 4B are perspective views showing fastening shapes of areas A and B of Fig. 2, respectively. Fig.

4A, the fixing protrusion 20b protruding from the one side of the flat support portion 20c of the latch-type fastening member 20 in a bent shape a plurality of times is formed on the rear surface of the front cover 130, The flat support portion 20c supports a part of the back surface of the bottom cover 10 after being fastened to the first portion 130a. At least one fastening bolt 22 can be fastened to the fastening hole of the bottom cover 10 through at least one fastening hole 20a of the flat support portion 20c.

4B, at least one projecting support portion 10a may be formed on the rear outer surface of the bottom cover 10 in addition to a fastening hole for fastening the fastening bolts 22, The flat support portion 20c of the bottom cover 20 may further include at least one fixing hole 20a and a support fastener 20d corresponding to the size of the protrusion support portion 10a of the bottom cover 10. [

When the latch type fastening member 20 is formed as shown in FIG. 4B, the fixing protrusion 20b, which is bent and protruded many times to one side of the flat support portion 20c, is inserted into the annular back fixing portion 130a of the front cover 130 And the supporting portion fastening portion 20d of the flat supporting portion 20c is fastened to the projecting supporting portion 10a of the bottom cover 10 and the flat supporting portion 20c supports a part of the back surface of the bottom cover 10 do. Thereafter, at least one fastening bolt 22 can be fastened to the fastening hole of the bottom cover 10 through at least one fastening hole 20a of the flat support portion 20c.

5 is a cross-sectional perspective view specifically showing a cross-sectional view taken along the line I-I 'in the state in which the liquid crystal display device of FIG. 1 is assembled.

5, when the backlight unit 2 and the liquid crystal panel 100 are sequentially stacked and assembled, the front cover (not shown) is formed so as to surround the front outer portion of the liquid crystal panel 100 and the side surface of the bottom cover 10 130 are assembled. Then, a plurality of latch type fastening members 20 are fastened to the rear surface of the bottom cover 10 and the annular rear fixing portion 130a of the front cover 130. [

As described above, the fixing projection 20b of each latch type fastening member 20 is first fastened to the annular back fixing portion 130a formed on the back surface of the front cover 130, If the flat support portion 20c is assembled so as to support a part of the bottom surface of the bottom cover 10, the front cover 130 and the bezel can be formed to be narrower because no separate space for assembling the fastening bolts 22 is provided.

6 is another cross-sectional perspective view specifically showing a cross section taken along the line I-I 'in the state in which the liquid crystal display device of FIG. 1 is assembled.

6, when the front cover 130 is assembled so as to surround the front outer edge of the liquid crystal panel 100 and the side surface of the bottom cover 10, the plurality of latch type fastening members 20 are inserted into the front cover 130 The rear cover 5 may be further formed so as to surround the bottom surface of the bottom cover 10 and the rear surface of the front cover 130 after being assembled to the rear surface of the bottom cover 10, . In this case, a hole is further formed in the rear cover 5 so as to correspond to the position of the fastening hole H between the fixing hole 20a of the flat support portion 20c and the bottom cover 10, (10).

The fixing projections 20b of the respective latch type fastening members 20 are first fastened to the annular back fixing parts 130a formed on the back surface of the front cover 130 so that the flat supporting parts 20c The front cover 130 and the bezel may be formed to be narrower than the bottom cover 10 because the assembly bolts 22 are not required to be assembled separately.

That is, the front cover 130, the liquid crystal panel 100, the bottom cover 10, and the like are formed by using the front cover 130 and the latch-type fastening members 20 having the annular rear fixing portions 130a of the present invention. The assembly efficiency can be improved and the manufacturing cost can be reduced. In addition, the front cover or the bezel forming the frame of the flat display device can be narrowed so that the slim bezel structure can be developed and produced according to a user's desired trend.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Will be apparent to those of ordinary skill in the art.

Claims (10)

A panel guide for fixing the display panel with a part of a side surface or a part of a back surface of the display panel for displaying an image;
A bottom cover having a light source fixing part for mounting and fixing the light source on an inner surface thereof;
A front cover folded to surround a front outer surface of the display panel and a side surface of the bottom cover and having an intermediate area opened to display an image;
A rear cover disposed to surround a rear surface of the bottom cover; And
And a plurality of latch type fastening members respectively fastened to rear fixing portions of the front cover and a plurality of latch type fastening members which are formed to surround a part of the back surface of the bottom cover to fasten the front cover, the bottom cover, and the rear cover with the fastening bolts, respectively ,
Wherein the latch-type fastening member includes: a flat support portion that supports a part of the back surface of the bottom cover; and an annular rear surface that is bent at least twice from one side of the flat support portion to face the flat support portion, And a fixing hole formed in the flat support portion so that at least one fastening bolt penetrates through the fixing hole,
The latch-type fastening member is fastened to the rear fixing portion by the fixing protrusion first so that the flat supporting portion supports a part of the rear surface of the bottom cover, and fastening bolts are fastened to the fixing holes to simultaneously fasten the rear cover Wherein the flat display device is a flat display device. delete The method according to claim 1,
The fixing protrusions protruding in the bent shape at least twice
The bottom cover is first fastened to the rear fixing part formed on the back surface of the front cover so that the flat support part supports a part of the back surface of the bottom cover and then the at least one fastening bolt passes through the fixing hole of the flat support part, Hole of the flat display panel. The method according to claim 1,
In the outer periphery of the back surface of the bottom cover
At least one protruding support portion is formed in addition to a fastening hole for fastening the respective fastening bolts,
And a support fastener corresponding to the size of the projecting support portion of the bottom cover is formed on the flat support portion of the latch type fastening member in addition to the at least one fastening hole. 5. The method of claim 4,
The fixing protrusions protruding in the bent shape at least twice
The front supporting part fastening part of the flat supporting part is fastened to the projecting supporting part of the bottom cover and the flat supporting part supports a part of the back side of the bottom cover after the fastening part is fastened to the annular rear fixing part of the front cover and,
Wherein the at least one fastening bolt is passed through at least one fixing hole of the flat support portion and is fastened to the fastening hole of the bottom cover. Fixing a display panel by placing a part of a side surface or a part of a back surface of a display panel displaying an image on a panel guide;
Placing or mounting the panel guide on a bottom cover in which a back surface and a side surface portion of the panel guide are housed and a light source fixing portion for mounting and fixing the light source is provided on a bottom cover;
Assembling the front cover, which is folded at least once and has an intermediate area opened so as to display an image, so as to surround the front outer portion of the display panel and the side surface of the bottom cover; And
And a plurality of latch-type fastening members are positioned to surround a part of the back surface of the bottom cover, and then the plurality of latch-type fastening members are fastened to the plurality of latch- Tightening the front cover, the bottom cover, and the rear cover disposed on the back surface of the bottom cover,
Wherein the latch-type fastening member includes: a flat support portion that supports a part of the back surface of the bottom cover; an annular rear surface that is bent at least twice from one side of the flat support portion so as to face the flat support portion, And a fixing hole formed in the flat support portion so that at least one fastening bolt penetrates through the fixing hole,
Wherein the step of fastening the front cover, the bottom cover and the rear cover comprises the steps of first fastening the fixing protrusion protruded at least twice to the rear fixing part formed on the back surface of the front cover, Thereby supporting a portion of the back surface. And inserting at least one fastening bolt into the fastening hole of the bottom cover through the fastening hole of the flat supporting part. delete delete The method according to claim 6,
In the outer periphery of the back surface of the bottom cover
At least one protruding support portion is formed in addition to a fastening hole for fastening the respective fastening bolts,
And a support fastener corresponding to the size of the projecting support portion of the bottom cover is formed on the flat support portion of the latch type fastening member in addition to the at least one fastening hole. 10. The method of claim 9,
The fastening step of the front cover and the bottom cover
Fastening the fixed protrusion protruding in the bent form at least twice to the annular rear fixing part of the front cover;
Tightening a support portion fastener of the flat support portion to a protruding support portion of the bottom cover,
Causing the flat support portion to support a portion of the backside of the bottom cover, and
And inserting the at least one fastening bolt into at least one fastening hole of the flat support portion and fastening the at least one fastening bolt to the fastening hole of the bottom cover.

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