WO2010107198A1

WO2010107198A1 - Display device

Info

Publication number: WO2010107198A1
Application number: PCT/KR2010/001427
Authority: WO
Inventors: 최경식; 김무연; 김수웅; 김철수
Original assignee: 엘지전자 주식회사
Priority date: 2009-03-20
Filing date: 2010-03-08
Publication date: 2010-09-23

Abstract

The present invention relates to a display device, wherein a front edge portion of the display device is exposed to the outside, and the width of a non-image display region defined by the front edge portion of the display device becomes narrower than its actual width whereby an image display region looks relatively large in size.

Description

Display device

The present invention relates to a display device.

In general, a display device is a device that outputs an image or a video through an image, and includes a TV, a computer monitor, and the like.

Recently, high quality and large display devices such as liquid crystal display panels (LCDs) or plasma display panels (PDPs) have emerged.

In addition, in order to make the display image relatively larger than the display module of the same size, efforts have been made to minimize the width of the edge portion where the image is not displayed.

It is an object of the present invention to provide an assembly structure of a display device such that the width of an image non-display area formed at the front edge of the display device appears narrower than it actually is.

A display device according to an embodiment of the present invention for achieving the above object, a display module for outputting an image; A front panel coupled to the front of the display module and having a light path changing unit configured to change a movement path of light in an edge region; A module bracket attached to a rear surface of the front panel and supporting the display module; A shielding member provided on the front surface of the module bracket to define an image non-display area; A hook member rotatably provided on the rear surface of the display module and selectively coupled to the module bracket; and a back cover coupled to the rear surface of the display module to protect the display module.

According to the display device having the above configuration, the screen looks larger than other display devices having display modules of the same standard. In addition, there is an effect that the image display area of the display device is actually enlarged.

In addition, unlike the conventional display device made of a plastic injection molding to cover the front edge of the display device, there is an effect that can be assembled with the front edge area of the display device exposed to the outside as it is. Therefore, the appearance of the display device is beautifully designed, and there is an advantage that the quality of the product can be improved.

In addition, by the assembly structure of the display device according to an embodiment of the present invention, there is an advantage that the thickness is significantly reduced compared to the conventional display device.

1 is a front perspective view when power is not applied to a display device according to an embodiment of the present invention.

2 is a front perspective view when power is applied to the display device.

3 is a rear perspective view of the display device.

Figure 4 is an exploded perspective view showing the internal configuration of a display device according to an embodiment of the present invention.

5 shows schematically the principle of a concave lens;

6 is a view showing the principle of a Fresnel lens (Fresnel Lens) applied to the idea of the present invention.

7 is a partial cross-sectional view showing a configuration of a shielding member defining a front panel and an image non-display area provided on a front surface of a display device according to an exemplary embodiment of the present invention.

8 is a view showing an optical phenomenon appearing on the front panel of the display device with a light path changing unit according to an embodiment of the present invention.

9 is an exploded perspective view of the rear side of the display device according to the embodiment of the present invention;

10 is an enlarged view illustrating a rear corner portion of the display device.

FIG. 11 is a longitudinal cross-sectional view taken along line II ′ of FIG. 2, and is a cross-sectional view illustrating an internal configuration of a display device according to an embodiment of the present invention. FIG.

12 is a partial perspective view showing a display module constituting a display device according to an embodiment of the present invention coupled to a module bracket.

FIG. 13 is a cross-sectional view taken along the line II-II 'of FIG. 12; FIG.

FIG. 14 is a cross sectional view taken along line III-III ′ of FIG. 12;

15 is an exploded perspective view showing an internal configuration of a display device according to an embodiment of the present invention.

16 is an exploded perspective view of the rear side of the display device according to the embodiment of the present invention;

17 is an enlarged view illustrating a rear corner portion of the display device.

18 is a partial perspective view illustrating a state in which a display module constituting a display device according to an embodiment of the present invention is coupled to a module bracket.

19 is a cross-sectional view taken along line IV-IV 'of FIG. 18;

20 is a front perspective view of a display device according to an embodiment of the present invention.

21 is an exploded perspective view of a display device provided with a light path changing unit according to an embodiment of the present invention.

FIG. 22 is a cross-sectional view taken along the line VV ′ of FIG. 20, and is a cross-sectional view illustrating an assembly state of a display device having a light path changing unit.

23 is an exploded perspective view of a display device provided with a light path changing unit according to an embodiment of the present invention.

24 is a cross-sectional view of the display device according to the fourth embodiment, taken along the line VV ′ of FIG. 20.

25 is an exploded perspective view of a display device with a light path changing unit according to an embodiment of the present invention.

FIG. 26 is a cross-sectional view of the display device according to the fifth embodiment taken along the line VV ′ of FIG. 20.

27 is an exploded perspective view of a display device provided with an optical path changing unit according to an exemplary embodiment of the present invention.

Fig. 28 is a partial perspective view showing the side structure of the front panel constituting the display device.

FIG. 29 is a cross sectional view taken along the line VV ′ of FIG. 20; FIG.

Hereinafter, the spirit of the present invention will be described in detail through specific embodiments.

The spirit of the present invention is not limited to the embodiments shown through the drawings, it is to be understood that not only each embodiment shown but also other embodiments implemented by the combination of the respective embodiments are included in the scope of the present invention. .

1 to 14 illustrate a display device according to a first embodiment of the present invention. 4 and 8, the principle of the concave lens and the principle of the Fresnel lens are equally applied to the other embodiments of the present invention, and thus, redundant description thereof will be omitted.

1 is a front perspective view when no power is applied to a display device according to an embodiment of the present invention, FIG. 2 is a front perspective view when power is applied to the display device, and FIG. 3 is a rear perspective view of the display device. to be.

1 to 3, as shown in the display apparatus 10 according to an exemplary embodiment of the present invention, the front part is not clearly divided into an image display area and an image non-display area when power is not applied. . In detail, when power is not applied to the display module, both the front part of the display device corresponding to the image display area and the image non-display area forming the outer edge of the image display area are almost black.

In the conventional case, even when no power is applied to the display module, it is common that the boundary appears clearly due to the difference in brightness between the front portion of the display module and the non-image display area surrounding the edge of the display module. However, the display device according to the embodiment of the present invention does not clearly show the boundary between the image display area and the non-display area so that the screen size is enlarged than the actual state when the power is not applied to the display module. When the power is supplied to the display device to output an image from the display module, the image display area and the image non-display area are clearly distinguished.

On the other hand, according to the structure of the optical path changing unit (described later) according to the embodiment of the present invention, the width of the image non-display area is narrower than it is. In other words, the light refraction phenomenon is caused by the optical path changing unit formed at the outer edge of the non-image display area. Therefore, the width of the image non-display area appears narrower in reality to the viewer. In fact, when the power is applied to the display module to output an image, it can be seen that the width of the non-display area of the image is narrower than the actual size, and the size of the image display area is relatively expanded. This optical phenomenon will be described in more detail below with reference to the drawings.

Display device 10 according to an embodiment of the present invention having the above characteristics, the front panel 11 of the transparent material, a display module (not shown) provided on the back of the front panel 11, and the It covers and protects the display module, and includes a back cover 16 which is directly or indirectly coupled to the rear surface of the front panel 11 and a support 18 for supporting such a module assembly. In addition, a shielding member 12 corresponding to an image non-display area is provided at an edge of the front panel 11. The shielding member 12 is provided to prevent a portion of the edge of the display module from which an image is not output to the outside. The shielding member 12 may be a thin sheet of an opaque material through which light does not penetrate, and in one embodiment, a black film may be applied. In the present invention, a gradation effect is applied to the film for the shielding member, thereby minimizing the boundary between the image display area and the non-display area. In addition, the shielding member 12 may be referred to as a bezel by a person skilled in the art, and as illustrated, has a rectangular band shape that has a predetermined width and surrounds the edge of the front panel.

Hereinafter, the internal structure of the display apparatus will be described in more detail with reference to the accompanying drawings.

4 is an exploded perspective view illustrating an internal configuration of a display device according to an embodiment of the present invention.

Referring to FIG. 4, the display apparatus 10 according to the exemplary embodiment of the present invention includes the front panel 11, the shielding member 12, the display module 13, the back cover 16, and the transparent material as described above. Support 18 is included, these configurations can be identified from the outside.

In addition to these configurations, a module bracket is provided inside the display device 10 to stably fix and support the display module 13 to the rear surface of the front panel 11. In detail, the module bracket includes an upper bracket 14 supporting the upper end of the display module 13 and side brackets 15 supporting both side ends of the display module 13. Although not shown, a separate module bracket may be provided at the lower end of the display module 13. As described above, the display device 10 of the present invention is essentially applied as described above, the function and assembly process of these components will be described in more detail with reference to the drawings below.

Prior to describing the functions and the assembly process of the above components, the principle and function of the above-described light path changing unit will be briefly described.

5 is a view schematically showing the principle of a concave lens.

Referring to FIG. 5, it shows how an image is formed when the object M is placed in front of the concave lens L1.

In detail, the distance from the concave lens L1 to the focus is f, the distance from the concave lens L1 to the target object M is a, and the distance to the image m of the target object M is b. In this case, the focal length formula is as follows.

1 / a + 1 / b = 1 / f

When the object M is placed inside the focal length f, an upright virtual image m of a reduced size is formed at a point between the object M and the concave lens L1. That is, the reduced sized upright virtual image m is perceived by the observer's eye, so that the object M looks smaller than the actual size. For example, light passing through the upper end of the object M is refracted toward the image as indicated by the solid line while passing through the concave lens L1. The observer's eye appears to have an optical path indicated by a dotted line in the absence of the concave lens L1.

6 is a view showing the principle of a Fresnel lens (Fresnel Lens) applied to the spirit of the present invention.

Fresnel lenses originate from lenses that have the same thickness as the convex lens in the first place. In detail, the convex Fresnel lens is made by cutting the upright convex lens into a plurality of segments in the transverse direction (direction parallel to the light passing direction) and horizontally moving these pieces in one plane. Then, the rounded refractive surface of the convex lens formed on each piece is flattened and deformed into a prism shape. As such, when the rounded refractive surface of the convex lens is flattened, chromatic aberration is reduced, and the thickness of the lens itself is reduced.

Using the principle of such convex Fresnel lens, it is possible to make concave Fresnel lens in the same way.

As shown in FIG. 6, the edge portion of the concave lens corresponding to the area l necessary for application to the front panel of the present invention is divided into a plurality of segments. Then, the rounded refractive surface of the concave lens formed in each segment is flattened so that a plurality of prisms are arranged in a line in one plane. Here, the refractive surface of the prism may take the rounded refractive surface of the concave lens as it is. In the present invention, as described above, a form in which a plurality of small prisms are arranged in one plane in a single plane is defined as a prism array. The refractive surfaces of each prism piece constituting the prism array have different inclination angles. That is, the inclined plane inclination angle of the prism piece becomes larger toward the outside, and the inclined plane inclination angle of the prism piece becomes smaller toward the inside. Here, the inclination angle means an angle formed by the refracting surface with respect to the vertical plane in the drawing.

According to the above operation, while having the same effect as the concave lens, not only the chromatic aberration generated by the wavelength difference of light is reduced, but also the concave Fresnel lens having a shape thinner than the thickness of the existing concave lens edge.

The concave Fresnel lens having the prism array area as described above has the same principle as a general concave lens. That is, light passing through the prism array region is refracted and diffused out of the lens. In addition, when an object is placed on the left side of the concave Fresnel lens, the observer recognizes an upright virtual image smaller than the size of the actual object. The prism array may be formed at the front edge of the display device, particularly at the outer edge of the non-image display area. Hereinafter, the prism array formed on the front surface of the display device is defined as an optical path changing unit, and it is understood that the prism array and the optical path changing unit may be mixed. On the other hand, the actual path of the light passing through the prism array region will be described in detail with reference to the drawings below.

7 is a partial cross-sectional view showing the configuration of a shielding member defining a front panel and an image non-display area provided on a front surface of a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 7, an optical path changing unit 111 to which a prism array is applied is formed at the front edge of the front panel 11 according to the exemplary embodiment of the present invention. In addition, a shielding member 12 made of an opaque material is provided behind the front panel 11, and the front panel 11 is connected to the image display area Q and the image non-display area by the shielding member 12. Divided into P). That is, the inner space of the shielding member 12 is defined as the image display area Q, and the portion surrounded by the shielding member 12 becomes the image non-display area P. FIG. Here, the meaning of being opaque in the shield member 12 of the opaque material means that the viewer does not recognize the image because the image is not projected to the outside, or an object or part disposed immediately after the shield member 12 It can be understood as a level that blocks the passage of light to the extent that it is not exposed to the outside. In other words, it does not mean that the light does not pass at all.

In addition, the light path changing unit 111 refers to a structure in which light traveling forward from the rear surface of the front panel 11 is refracted in a specific direction. That is, it means any configuration that performs a function of artificially changing the movement path of the light so that the light traveling forward from the rear surface of the front panel 11 is collected in one place or diffused to the outside. In the present invention, the light is diffused to the outside, so that the width of the shield member 12 provided on the rear surface of the front panel is limited to the optical path changing section 111 to be described. As an embodiment of the optical path changing unit 111 performing the function of artificially changing the movement path of the light as described above, a prism array using the principle of the Fresnel lens as described in FIG. 6 may be proposed.

In detail, in the case of a general Fresnel lens, a plurality of concentric protrusions and grooves are formed on the lens surface, but in the present invention, a plurality of protrusions and grooves are formed in a straight line parallel to the edge of the front panel 11. An example will be described.

In more detail, a straight prism array is provided at the edges of the front panel 11, that is, at the top, bottom, left and right edges, in a straight line. The prism array, that is, the width of the light path changing unit 111 may be set differently depending on how much the outer edge of the shield member 12 is to be narrowed.

FIG. 8 is a view illustrating an optical phenomenon appearing on a front panel of a display device having a light path changing unit according to an exemplary embodiment of the present invention.

Referring to FIG. 8, an image of the shield member 12 that is enclosed in the viewer's eye when the shield member 12 is provided at a position spaced from the rear surface of the front panel 11 is described.

In detail, when the concave Fresnel lens is applied, the larger the distance between the object and the lens, the smaller the size of the image formed. Therefore, in the present embodiment, the amount of reduction of the image on the viewer's eyes varies according to the distance k between the shielding member 12 and the front panel 11. That is, as the distance between the shield member 12 and the front panel 11 increases, the size of the image becomes smaller.

The figure shows the path and image of light passing through the upper end of the shielding member 12.

In detail, light spreads in all directions at the upper end of the shield member 12, and light spreading toward the front panel 11 is refracted while passing through the front panel 11. This refraction occurs when the medium passes through another material, that is, air and the front panel 11. In addition, the light passing through the front panel 11 is refracted again in the direction of diffusion while passing through the optical path changing unit 111 in the form of a concave lens. Finally, the virtual image 121 formed on the eyes of the viewer is smaller than the actual size of the shield member 12. As shown, the viewer's eye is perceived to be located at the point where the top of the shield member 12 is lowered downward. The part indicated by the thick arrow is representative of the light reaching the viewer's eyes, and the virtual image 121 is formed at the point where the arrow crosses. The virtual image 121 is formed between the shielding member 12 and the front panel 11.

Since the thickness t of the front panel 11 is a fixed value, the position of the upper end of the virtual image 121 is determined according to the distance k between the shielding member 12 and the front panel 11. That is, as the shielding member 12 moves away from the front panel 11, the upper end of the virtual image 121 is further lowered downward. As a result, the width of the non-image display area P as a whole becomes narrower than it actually is. As a result, an optical illusion occurs that the area of the image display area Q is relatively large.

In this embodiment, since the light path changing portion 111 is formed only on the outer edge portion of the shield member 12, the outer edge portion of the shield member 12 is moved to the viewer in the center direction of the display apparatus 10. Will be recognized.

FIG. 9 is an exploded perspective view of the rear side of the display device according to an exemplary embodiment of the present invention, and FIG. 10 is an enlarged view illustrating a rear edge portion of the display device.

9 and 10, the display apparatus 10 according to the exemplary embodiment of the present invention may include the front panel 11, the shielding member 12, and the display module 13 made of a transparent material, as described in the previous drawings. ),

Module brackets

14 and 15 and back cover 16. The left and right edges and the upper edge portions of the front panel 11 are bent backwards to form side surfaces of the display apparatus 10. In addition, a plurality of hook members 17 are provided at both side edges of the rear surface of the display module 13. The function of the hook member 17 will be described in detail below with reference to the drawings.

Meanwhile, the upper bracket 14 supporting the upper edge of the display module 13 among the

module brackets

14 and 15 has the following structure. That is, the upper bracket 14 is bent at one end of the upper support 141 and the upper support 141 which is in contact with the upper surface of the display module 13 to the upper edge of the front portion of the display module 13. The front support part 142 is in close contact with the rear support part 143 extending in the same direction as the front support part 142 at a point spaced apart from the other end of the upper support part 141 by a predetermined distance. The back support 143 is in close contact with the upper edge of the back of the display module 13. In other words, an upper end of the display module 13 is inserted between the front support part 142 and the rear support part 143.

In addition, the side bracket 15 of the

module brackets

14 and 15 may be bent from one end of the side support part 151 supporting the side surface of the display module 13 and one end of the side support part 151. And a front support 152 in close contact with the front side lateral edge of (13). The side brackets 15 are provided on the left and right sides of the display module 13, respectively.

Referring to the assembly process of the display device constituting such a configuration, first, the front panel 11 is turned over so that the front portion is in close contact with the floor. Here, the shielding member 12 is bonded to the rear edge portion of the front panel 11. In this state, the upper bracket 14 and the side bracket 15 are attached to the rear surface of the shield member 12. In addition, the display module 13 is placed between the upper bracket 14 and the side bracket 15. At this time, the upper surface of the display module 15 is placed in a position spaced downward from the end of the back support 143. Then, both side edge regions of the front surface of the display module 13 are seated on the front support portion 152 of the side bracket 15. In this state, the display module 13 is pushed up toward the upper bracket 14. Then, the upper end of the display module 13 is inserted between the front support part 142 and the rear support part 143 of the upper bracket 15. When this process is completed, the display member 13 is firmly adhered to the side bracket 15 by using the hook member 17, which will be described with reference to the accompanying drawings. .

FIG. 11 is a cross-sectional view taken along line II ′ of FIG. 2, and is a cross-sectional view illustrating an internal configuration of a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 11, the light path changing unit 111 is formed at the front edge of the front panel 11. The light path changing unit 111 is surrounded by a rectangular band shape at the edge of the front panel 11. And it is adhere | attached on the back surface of the said front panel 11 by the transparent adhesive agent (B). The outer edge of the light path changing unit 111 is formed on the same plane as the inner edge of the bent portion of the front panel 11, and the inner edge is spaced apart from the inner edge of the shield member 12. Is formed at the point. That is, the width of the optical path changing unit 111 is formed smaller than the width of the shielding member 12. Accordingly, the outer edge of the shield member 12 is moved toward the center of the front panel 11 by the light path changing portion 111, so that the outer edge of the shield member 12 appears smaller than the actual width of the shield member 12.

In addition, the shielding member 12 extends to the boundary between the image non-display area P and the image display area Q. FIG. In addition, the shielding member 12 is coated in black, and a gradation printing is made in which the color becomes darker from the inner edge to the outer edge. Therefore, when the display apparatus 10 is turned off, the boundary between the image non-display area P and the image display area Q is not clearly distinguished by the shielding member 12.

In addition, the

module brackets

14 and 15 are attached to be spaced apart from the inner side of the bent portion of the front panel 11 by a predetermined distance G, and are bonded to the rear surface of the shield member 12 by a transparent adhesive B. do. The outer circumferential surfaces of the

module brackets

14 and 15 are anodized to black. The

module brackets

14 and 15 may be formed of a metal material such as aluminum, and are processed in black so that the internal structure of the display device 10 is not exposed.

Here, the reason why the

module brackets

14 and 15 are coupled to be spaced apart from the bent portion of the front panel 11 is as follows.

If the

module brackets

14 and 15 that have been anodized to black are in close contact with the bent portions of the front panel 11, the front edge of the front panel 11 may be black due to light scattering. Band-shaped virtual images can form. Since the front panel 11 is a transparent material through which light can pass, the light passing through the bent portion of the front panel 11, that is, the light moving toward the side of the display device 10 is transferred to the module. It hits the

brackets

14 and 15 to cause scattering. The

module brackets

14 and 15 are spaced apart from the bent portion of the front panel 11 in order to prevent black bands from being formed on the front edge of the front panel 11 due to light scattering. To be attached in position.

As such, when the

module brackets

14 and 15 are assembled to be spaced apart from the bent portion of the front panel 11, the front edge portion of the display apparatus 10 has a transparent area having a predetermined width.

12 is a partial perspective view illustrating a state in which a display module constituting a display device according to an exemplary embodiment of the present invention is coupled to a module bracket.

Referring to FIG. 12, as mentioned above, a plurality of hook members 17 are coupled to left and right edges of the rear surface of the display module 13. The plurality of hook members 17 are spaced apart from each other by a predetermined interval and are rotatably provided at one end.

In detail, the hook member 17 has an approximately I shape, is defined at one end of the body 171, the body 171, and a proximal end 172 having a rotation hole 174 formed therein. And a distal end defined at the other end of the body 172 and having a fastening hole 175 formed therein.

In addition, the side bracket 14 is formed with a slot 143 for inserting a portion of the proximal end 172 and the distal end 173. In detail, the rotation hole 174 and the fastening hole 175 are formed at positions biased to the edges of the proximal end 172 and the distal end 173, respectively. In addition, opposite ends of the ends adjacent to the rotation hole 174 and the fastening hole 175 are inserted into the slot 143.

In addition, the rivet L is inserted into the rotation hole 174. That is, the hook member 17 is rotatably coupled to the rear surface of the display module 13 by riveting coupling. In the state where the proximal end 172 and the distal end 173 are inserted into the slot 143, respectively, a fastening member S such as a screw penetrates the fastening hole 175 and the display module 13. ) Is inserted. Then, the display module 13 does not swing while being fitted to the

module brackets

14 and 15.

When the assembly process of the display module 13 is arranged, first, the display module 13 is placed in a space formed by the

module brackets

14 and 15. When the display module 13 is pushed up, the upper edge of the display module 13 is fitted to the upper bracket 15. In this case, the hook member 17 is coupled to the rear surface of the display module 13. In this state, the hook member 17 is rotated so that the proximal end 172 and the distal end 173 are respectively inserted into the slot 143 formed in the side bracket 14. When the fastening member S is inserted into the fastening hole 175, the assembly of the display module 13 is completed. Thereafter, the back cover 16 may be coupled. Although not shown, the back cover 16 may be fixed to the display module 13. For example, a boss of a predetermined length may protrude from the rear surface of the display module 13, and a fastening hole may be formed on a surface of the back cover 16 that contacts the end of the boss. In addition, a fastening member such as a screw may be inserted into the boss through the fastening hole.

FIG. 13 is a cross-sectional view taken along line II-II 'of FIG. 12, and FIG. 14 is a cross-sectional view taken along line III-III' of FIG. 12.

Referring to FIG. 13, the hook member 17 rotates about the rotation hole 174 to show a part of the proximal end 172 inserted into the slot 143.

Referring to FIG. 14, a part of the distal end 173 is inserted into the slot 143 by the rotation of the hook member 17.

Hereinafter, the structure of the display device according to the second embodiment of the present invention will be described. Hereinafter, different reference numerals are provided for the components that perform the same functions and operations as those of the first embodiment. However, since the function is the same as that of the first embodiment, no further explanation is given. For example, while the shielding member 12 has been labeled 22,32,42,52,62 in other embodiments, it is to be noted that they are all the same member.

15 is an exploded perspective view illustrating an internal configuration of a display device according to an embodiment of the present invention.

Referring to FIG. 15, the display apparatus 20 according to the exemplary embodiment of the present invention includes the front panel 21, the shielding member 22, the display module 23, the back cover 26, and the transparent material as described above. Support 28. As in the first embodiment, a module bracket is provided inside the display apparatus 20 to stably fix and support the display module 23 to the rear surface of the front panel 21. In detail, the module bracket includes an upper bracket 24 supporting an upper end of the display module 23, and side brackets 25 supporting both side ends of the display module 23.

FIG. 16 is an exploded perspective view of a rear side of a display device according to an embodiment of the present invention, and FIG. 17 is an enlarged view illustrating a rear edge portion of the display device.

16 and 17, the left and right edges and the upper edges of the front panel 21 of the display apparatus 20 according to the exemplary embodiment of the present invention are bent backwards to form side surfaces of the display apparatus 20.

In detail, the upper bracket 24 supporting the upper edge of the display module 23 among the

module brackets

24 and 25 has the following structure. That is, the upper bracket 24 is bent at one end of the upper surface support part 241 and the upper surface support part 241 in contact with the upper surface of the display module 23 to the upper edge of the front surface of the display module 23. The front support part 242 is in close contact with the rear support part 243 extending in the same direction as the front support part 242 at a point spaced apart from the other end of the upper support part 241 by a predetermined distance. The back support part 243 is in close contact with the upper edge of the back part of the display module 23. In other words, an upper end of the display module 23 is inserted between the front support part 242 and the rear support part 243.

In addition, the side brackets 25 of the

module brackets

24 and 25 may be bent from one end of the side support part 251 supporting the side surface of the display module 23 and one end of the side support part 251. The front support portion 252 is in close contact with the front side side edge of the 23 and a plurality of engaging ends 253 protruding and bending from the rear surface of the side support portion 251. The side brackets 25 are provided on the left and right sides of the display module 23, respectively. In addition, the locking end 253 is bent toward the lower end of the side bracket 25.

In addition, the display module 23 is formed with a flange 231 further extending laterally from the rear surface. In addition, a plurality of locking holes 232 are formed in the flange 231 to insert the locking end 253. The locking hole 232 may be formed to have a length through which at least the bent portion of the locking end 253 may pass. The plurality of locking ends 253 and the locking holes 232 are disposed at positions spaced apart from each other by a predetermined interval.

FIG. 18 is a partial perspective view illustrating a state in which a display module constituting a display device according to an embodiment of the present invention is coupled to a module bracket, and FIG. 19 is a cross-sectional view taken along line IV-IV ′ of FIG. 18.

Referring to FIGS. 18 and 19, the assembling process of the display module will be described. First, the display module 23 is placed in a space formed by the upper bracket 24 and the side bracket 25. At this time, the locking end 253 formed in the side bracket 25 is aligned with the locking hole 232 formed in the flange 231 of the display module 23.

In detail, the display module 23 is seated so that the locking end 253 passes through the locking hole 232, and then the display module 23 is pushed up. Then, the upper end of the display module 23 is in close contact with the upper bracket 24. That is, the upper end of the display module 23 is inserted between the front support part 242 and the rear support part 243 of the upper bracket 24.

In this state, as shown in FIG. 19, the back cover 26 is covered, and the fastening member S is inserted into the display module 23 through the back cover 26. Then, the

module brackets

24 and 25, the display module 23 and the back cover 26 are firmly fixed to the rear surface of the front panel 21.

Hereinafter, a display apparatus according to a third exemplary embodiment of the present invention will be described.

Referring to FIG. 20, the display device 30 according to the exemplary embodiment of the present invention is not clearly divided into an image display area and an image non-display area when the power is not applied. In detail, when power is not applied to the display module, both the front part of the display device corresponding to the image display area and the image non-display area forming the outer edge of the image display area are almost black.

However, when power is applied to the display device to output an image from the display module, the image display area and the image non-display area are clearly distinguished.

FIG. 21 is an exploded perspective view of a display device having a light path changing unit according to an embodiment of the present invention, and FIG. 22 is a cross-sectional view taken along the line VV ′ of FIG. 20, and assembling the display device having the light path changing unit. It is a cross-sectional view showing the status.

21 and 22, the display device 30 according to the exemplary embodiment of the present invention has a structure in which the front edge portion is assembled in a state in which it is exposed to the outside.

In detail, the display device 30 includes a display module 34 for outputting an image and a front surface of the display module 34, and edge portions of the display device 30 are bent to the rear so that the entire front and side portions of the display device 30 can be displayed. The front panel 31 forming the, the display module 34 and the module bracket 33 provided so as to be firmly attached to the rear surface of the front panel 31, the module bracket 33 is in contact A shielding member 32 attached to a rear surface of the front panel 31, a back cover 36 coupled to a rear surface of the display module 34 to protect the display module 34, and the back cover ( A middle bracket 35 is interposed between the edge portion of the front panel 31 and the edge portion of the front panel 31 so that the back cover 36 is engaged with the back surface of the front panel 31 without deviation.

In detail, an optical path changing unit 311 is formed at an edge portion of the front panel 31 to cause light refraction. The light path changing unit 311 is formed with a predetermined width inward from the edge of the front panel. In addition, the edge portion of the front panel 31 is bent backward, so that the module bracket 33 is stably supported, and is firmly coupled to the back cover 36 to prevent foreign substances from entering. The shielding member 32 is surrounded by the back surface of the front panel 31 with a predetermined width inward from the point at which the front panel 31 is bent, and on the back surface of the front panel 31 by an adhesive. Attached.

In addition, the module bracket 33 is bent to hold the edge portion of the display module 34 in a wrapping form. That is, the back surface of the front panel 31 and the contact surface 331 in close contact with the front edge of the display module 34, the support surface 332 and the support surface 332 for supporting the side surface of the display module 34 Protruding to the end of the) is made of a hook portion 333 to block the removal of the display module 34. In addition, the contact surface 331 of the module bracket 33 is strongly attached to the rear surface of the front panel 31 by an adhesive. In addition, the contact surface 331 and the support surface 332 may be bent at an angle of less than 90 degrees, a metal piece having a predetermined elastic force. Therefore, when the display module 34 is seated on the rear surface of the front panel 31, the side portion of the display module 34 slides along the inclined surface of the hook portion 333. Then, the support surface 332 opens to the outside while the display module 34 is fitted to the module bracket 33. When the display module 34 is completely inserted into the module bracket 33 to be in close contact with the contact surface 331 of the module bracket 33, the hook part 333 is the display module 34 as shown. On the back edge. In this state, the support surface 332 of the module bracket 33 forms 90 degrees with the contact surface 331 and is in close contact with the bent side portion of the front panel 31.

Meanwhile, the middle bracket 35 is coupled while the display module 34 is firmly fixed to the module bracket 33.

In detail, the middle bracket 35 may be a plastic injection molding of a transparent material, and is bent at least once. One end of the middle bracket 35 is coupled to the display module 34, and the other end of the middle bracket 35 is seated at an end of the bent side of the front panel 31. Here, a fastening boss 341 protrudes from the rear surface of the display module 34, and one end of the middle bracket 35 is seated on the fastening boss 341. In addition, a fastening hole is formed at one end of the middle bracket 35 corresponding to the point of contact with the fastening boss 341.

In addition, the back cover 36 is seated while the middle bracket 35 is seated on the rear surface of the display module 34. In detail, an edge portion of the back cover 36 is bent forwardly opposite to the front panel 31 to form part of a side portion of the display device 30. The bent side portion of the back cover 36 is seated on the middle bracket 35. Here, the edge portion of the middle bracket 35 is bent backward to contact the outer surface of the side portion of the back cover 36. Accordingly, the back cover 36 is seated in the correct position without misalignment. Here, although the outer surface of the bent portion of the back cover 36 is shown to be located between the inner surface and the outer surface of the bent portion of the front panel 31, other fastening methods are possible. For example, the outer surface of the bent couple of the back cover 36 may coincide with the inner surface of the bent portion of the front panel 31.

In the former case, light passing through the bent portion of the back cover 36 is transmitted through the middle bracket 35 made of a transparent material and transmitted to the front surface of the front panel 31. Then, the light is refracted while passing through the optical path changing unit 311. Then, the bent portion of the back cover 36 is recognized as being in close contact with the position spaced inward from the edge of the front panel 311 than the actual. In addition, the outer edge of the shielding member 32 by the light path changing unit 311 will also be recognized as being in close contact with the position spaced inward from the edge of the front panel 31 than actually. Here, the inner circumferential surface of the bent side portion of the back cover 36 is at least the side portion of the front panel 31 so that the space between the bent side portion of the back cover 36 and the shielding member 32 is not formed. Coplanar to the inner circumferential surface, or it is better to be located inside.

In the latter case, since the outer side surface of the bent side portion of the back cover 36 coincides with the inner side surface of the bent side portion of the front panel 31, the width of the image non-display area recognized by the viewer is the former case. It will look narrower than

On the other hand, when the back cover 36 is seated on the rear surface (the upper surface in the drawing) of the middle bracket 35, the fastening member penetrates the back cover 36 and the middle bracket 35 in turn to the display module It is inserted into the fastening boss 341 formed in the back of 34. Then, the back cover 36, the middle bracket 35 and the display module 34 are integrally coupled. In addition, the display module 34 is indirectly fixed to the rear surface of the front panel 31 by the module bracket 33. In addition, the display module 34 is spaced apart from the rear surface of the front panel 31 by a distance corresponding to the sum of the thickness of the contact surface 331 of the module bracket 33 and the thickness of the shielding member 32. Substantially, the thickness of the shielding member 32 may be ignored.

On the other hand, the disassembly process of the display device 30 is performed in the reverse order of the assembly process.

By the assembly structure as described above, the edge portion of the front panel 31 is not covered by the back cover 36 or other members, and is exposed to the outside. Therefore, the display device not only looks larger than it actually is, but also has an advantage that the appearance is neatly designed.

Hereinafter, a display apparatus according to a fourth exemplary embodiment of the present invention will be described.

FIG. 23 is an exploded perspective view of a display device including a light path changing unit according to an exemplary embodiment of the present invention, and FIG. 24 is a cross-sectional view of the display device according to the fourth exemplary embodiment cut along the line VV ′ of FIG. 20. Is a cross-sectional view illustrating an assembly state of a display apparatus provided with a furnace change unit.

23 and 24, the display device 40 according to the embodiment of the present invention, like the previous embodiment, has the display module 44, the front panel 41, the module bracket 43, and the back. Cover 45.

In detail, both side edge portions of the display module 44 are supported by being surrounded by the module bracket 43. In addition, the module bracket 43 may include a contact surface 431 attached to the rear surface of the front panel 41, a support surface 432 bent at an end of the contact surface, and may be in close contact with the side surface of the display module 44. The locking end 433 is bent inward from the end of the support part 432 and then bent outward again. In addition, the module bracket 43 may be provided in the form of a metal piece having a predetermined elastic force, and spring steel is applicable as an example.

In addition, the shielding member 42 is attached to the rear edge region of the front panel 41 to define an image non-display area. The shielding member 42 does not expose the support surface 432 and the back cover 45 of the module bracket 43 to the outside.

In addition, the contact surface 431 of the module bracket 43 is fixed by the adhesive at the point where the shield member 42 is attached. In this state, both side ends of the display module 44 are fitted to the module bracket 43.

In detail, the contact surface 431 and the support surface 432 of the module bracket 43 are kept bent at an angle smaller than 90 degrees. In the process of bringing the display module 44 into close contact with the rear surface of the front panel 41, the side edge portion of the display module 44 comes into contact with the locking end 433. As the display module 44 approaches the rear surface of the front panel 41, the support surface 432 is opened by elastic deformation. Then, the support surface 432 and the contact surface 431 is maintained at an approximately 90 degree angle, the support surface 432 is to press the side surface of the display module 44 by the elastic force. In addition, the locking end 433 is caught by the rear edge of the display module 44 so that the display module 44 does not fall out.

On the other hand, a plurality of fastening bosses 441 protrude from the rear edge of the display module 44, and the fastening holes are formed in the back cover 45.

In detail, when the back cover 45 is seated on the rear surface of the display module 44, the fastening holes formed in the back cover 45 are aligned with the fastening boss 441 of the display module 44. The back cover 45 is fixed to the rear surface of the display module 44 by inserting the fastening member into the fastening boss 441 through the fastening hole. The front end of the side part of the back cover 45 is in close contact with the rear edge of the front panel 41. Here, the outer side surface of the side portion of the back cover 45 is aligned on the same plane as the side surface of the front panel, or is located at a point spaced inward from the side of the front panel 41.

In addition, the display module 44 is spaced apart from the front panel 41 by at least the thickness of the contact surface 431 of the module bracket 43. Here, since the shielding member 42 is provided in the form of a thin thin film, it will hardly affect the separation distance of the display module 44.

By this assembling structure, the display module 44 is coupled to be spaced apart from the front panel 41. In addition, the back cover 45 may not be directly coupled to the rear surface of the front panel 41, but may be indirectly coupled through the display module 44. In addition, the edge portion of the front panel 41 is not covered by the back cover 46 or another member, and is exposed to the outside. Therefore, the display device not only looks larger than it actually is, but also has an advantage that the appearance is neatly designed.

On the other hand, the disassembly process of the display device 40 is performed in the reverse order of the assembly process.

Hereinafter, a display apparatus according to a fifth embodiment of the present invention will be described.

FIG. 25 is an exploded perspective view of a display device including a light path changing unit according to an exemplary embodiment of the present invention, and FIG. 26 is a cross-sectional view of the display device according to the fifth embodiment cut along the line VV ′ of FIG. 20. Is a cross-sectional view illustrating an assembly state of a display apparatus provided with a furnace change unit.

25 and 26, the display device 50 according to the embodiment of the present invention, like the previous embodiment, has the display module 54, the front panel 51, the module bracket 53, and the shielding. The member 52, the middle bracket 55, and the back cover 56 are included.

In addition, an optical path changing unit 511 is formed at an edge portion of the front panel 51 to cause light refraction. In addition, the module bracket 53 is bent to support the back surface of the front panel 51 and the contact surface 531 in close contact with the front edge of the display module 54 and the side surface of the display module 54. The support surface 532 and the pressing surface 533 in close contact with the rear edge of the display module 54. The contact surface 531 is strongly attached to the rear surface of the front panel 51 by an adhesive. In more detail, the module bracket 53 is bent a plurality of times, thereby forming a structure in which an accommodating part corresponding to the thickness of the display module 54 is formed. The module brackets 53 are provided on both sides of the display module 54, respectively.

In addition, one end of the middle bracket 55 is seated on the rear surface (the upper surface in the drawing), that is, the pressing surface 533 of the module bracket 53. In detail, the middle bracket 55 is bent a plurality of times, and includes a seating surface 55 seated on the module bracket 53 and a fastening surface 552 seated on the rear surface of the display module 54. The seating surface 551 is attached to the pressing surface 533 of the module bracket 53 by an adhesive 57.

In addition, a fastening boss 541 protrudes from the rear surface of the display module 54, and a fastening surface 552 of the middle bracket 55 is seated on the fastening boss 541. In addition, a fastening hole is formed in the fastening surface 552 to which the fastening boss 541 contacts.

On the other hand, the edge portion of the back cover 56 is bent forward to form a side portion, the side portion is in close contact with the seating surface 551 of the middle bracket (55). At this time, the outer peripheral surface of the side portion of the back cover 56 is aligned on the same plane as the side of the front panel 51, or is located at a point spaced inward from the side of the front panel 51. In addition, a fastening hole is formed in the back cover 56, and the fastening hole is aligned with the fastening hole of the middle bracket 55. In this state, the fastening member penetrates through the back cover 56 and the middle bracket 55 and is inserted into the fastening boss 541 of the display module 54. Then, the back cover 56, the middle bracket 55 and the display module 54 are fastened at one time.

Here, the module bracket 53 may be applied to a metal piece having a predetermined elasticity, such as aluminum extrusion, the distance between the contact surface 531 and the pressing surface 533 is shorter than the length of the support surface 532. It may be coupled to the rear surface of the display module 51 in a state. In this state, the display module 54 is pushed up from the rear lower side of the front panel 51. Then, both side surfaces of the display module 54 are moved in the state of being inserted into the receiving portion formed in the module bracket 53. In addition, when the display module 53 is fitted, the pressing surface 533 of the module bracket 53 is opened to press the rear edge of the display module 54. Then, the display module 54 is supported without shaking by the module bracket 53. In this state, the middle bracket 55 is bonded to the module bracket 53, the back cover 56 is seated, and then coupled to the fastening member at once. On the other hand, the injection molding material of the transparent material may be applied to the middle bracket 55. In addition, the adhesive provided between the middle bracket 55 and the module bracket 53 and the adhesive provided between the module bracket 53 and the front panel 51 may be transparent adhesives.

In addition, the display module 54 is spaced apart from the rear surface of the front panel 51 by a distance corresponding to the sum of the thickness of the contact surface 531 of the module bracket 53 and the thickness of the shielding member 52. Substantially, the thickness of the shielding member 52 may be ignored.

On the other hand, the disassembly process of the display device 50 is performed in the reverse order of the assembly process.

Hereinafter, a display apparatus according to a sixth embodiment of the present invention will be described.

FIG. 27 is an exploded perspective view of a display device including a light path changing unit according to an exemplary embodiment of the present invention, FIG. 28 is a partial perspective view showing a side structure of a front panel constituting the display device, and FIG. 29 is V of FIG. 20. It is a cross-sectional view cut along -V ', and is sectional drawing which shows the assembly state of the display apparatus with a light path change part.

27 to 29, the display device 60 according to the embodiment of the present invention, like the previous embodiment, has a display module 64, a front panel 61, a module bracket 63, The shield member 62, the back cover 66, and the middle bracket 65 are included.

In detail, an optical path changing unit 611 is formed at the edge portion of the front panel 61 to cause the refraction of light, as in the previous embodiment. In addition, the edge of the front panel 61 is bent backward, so that the module bracket 63 is caught, and is firmly coupled to the back cover 66 to prevent foreign substances from entering. The shielding member 62 is surrounded by the back surface of the front panel 61 with a predetermined width inwardly from the point at which the front panel 61 is bent, and on the back surface of the front panel 61 by an adhesive. Attached.

In addition, the edge portion of the front panel 61 is bent backward to form a side portion. A locking protrusion 662 protrudes from an inner side surface of the side portion, and a stepped surface 611 is formed at an end portion of the side portion to seat the middle bracket 65.

In addition, a guide protrusion 642 protrudes from a rear surface of the display module 64, and a fastening boss 641 protrudes at a point spaced apart from the guide protrusion 642.

In addition, the module bracket 63 is bent in a “┏” shape to be in close contact with the side surface of the front panel 61 and the rear surface of the display module 64. In detail, a locking hole 631 for inserting the locking protrusion 662 is formed on a surface of the front panel 61 which is in close contact with the side surface of the front panel 61. In addition, a guide hole 632 for inserting the guide protrusion 642 is formed on a surface closely contacting the rear surface of the display module 64. The module bracket 63 may be provided in the form of a metal piece, and a metal having an elastic force may be applied.

In addition, the middle bracket 65 may be a plastic injection molded material of a transparent material, and is bent in the form of “┏” like the module bracket 63. One end of the bent surface is seated on the side portion of the front panel 61, and the other is coupled to the back cover 66. In detail, a guide rib 651 protrudes from one surface of the middle bracket 65 coupled to the back cover 66. The guide rib 651 functions to guide the back cover 66 to be seated in the correct position without being shifted or shaken when the back cover 66 is seated on the middle bracket 65. In addition, a fastening hole through which the fastening member penetrates is formed at a point spaced apart from the guide rib 651. The back cover 66 and the middle bracket 65 are integrally coupled by a fastening member penetrating the fastening hole.

In addition, the edge of the back cover 66 is bent forward to form a side portion. In detail, the side surface portion of the back cover 66 is seated on the middle bracket 65 in close contact with the outer surface of the guide rib 651. In addition, a fastening boss 9 661 for protruding a fastening member penetrating the middle bracket 65 protrudes from an inner side surface of the back cover 66. In addition, a fastening hole is formed at a point spaced apart from the fastening boss 661. The fastening hole is a hole through which a fastening member inserted into a fastening boss 641 formed on the rear surface of the display module 64 passes. The outer circumferential surface of the side portion of the back cover 66 may be aligned to be at least on the same plane as the inner circumferential surface of the side portion of the front panel 61. Alternatively, the front panel 61 may be positioned at a point spaced inward from the inner side surface of the side part. This is to prevent the side part of the back cover 66 from being exposed to the outside through the side brackets of the middle bracket 65 and the front panel 61 made of a transparent material.

Hereinafter, an assembly process of the display apparatus 60 having the above configuration will be described.

First, the display module 64 is mounted on the rear surface of the front panel 61. Here, the horizontal and vertical lengths of the display module 64 are provided smaller than the horizontal and vertical lengths of the front portion of the front panel 61. Therefore, the four sides of the display module 64 are kept spaced apart from the inner side surface of the side portion of the front panel 61.

In this state, the module bracket 63 is allowed to rest on the side edge of the display module 64. At this time, the bent surface of the module bracket 63 faces the side of the front panel 61, and the other surface is in close contact with the rear surface of the display module 64. The guide protrusion 642 formed in the display module 64 is inserted into the guide hole 632 formed on the other surface of the module bracket 63. Here, the guide hole 632 has a long hole shape extending toward the side portion of the front panel 61. In this state, the module bracket 63 is pushed toward the side portion of the front panel 61 so that one surface of the module bracket 63 is in close contact with the inner peripheral surface of the side portion of the front panel 61. Then, the locking protrusion 662 protruding from the inner peripheral surface of the side portion of the front panel 61 is inserted into the locking hole 631 formed on one surface of the module bracket 63. Then, the guide protrusion 642 is caught by the inner circumferential surface of the guide hole 632, so that the display module 64 is supported not to shake. Here, the locking protrusion 662 may have a hook shape in which the end is inclinedly cut.

On the other hand, after the coupling of the module bracket 63 is completed, the middle bracket 65 is to be seated on the step surface 611 formed in the side portion of the front panel 61. At this time, the middle bracket 65 is to be coupled to the front surface of the back cover 66 in advance.

In detail, the bent side portion of the back cover 66 is seated on one surface of the middle bracket 65 on which the guide rib 651 is formed. At this time, the inner peripheral surface of the bent side portion of the back cover 66 is in close contact with the outer peripheral surface of the guide rib 651. The fastening member is inserted into a fastening hole formed at a point spaced apart from the guide rib 651, and the fastening member is inserted into the fastening boss 661 formed on the front surface of the back cover 66. Then, the back cover 66 is coupled to the middle bracket 65 without shaking.

As described above, the end of the bent other surface of the middle bracket 65 integrally coupled with the back cover 66 is seated on the step surface 611 of the front panel 61. Then, a fastening hole formed at a point spaced apart from the fastening boss 661 of the back cover 66 coincides with the fastening boss 641 formed on the rear surface of the display module 64. In this state, the fastening member penetrates through the back cover and is inserted into the fastening boss 641.

On the other hand, when the fastening member is a member such as a screw, when tightening the screw, the display module 64 toward the back cover 66 due to the coupling relationship with the thread formed on the inner peripheral surface of the fastening boss 641. Can be lifted. That is, after the fastening member is completely tightened, the display module 64 may be spaced apart from the rear surface of the front panel 61.

Claims

A display module for outputting an image;

A front panel coupled to the front of the display module and having a light path changing unit configured to change a movement path of light in an edge region;

A module bracket attached to a rear surface of the front panel and supporting the display module;

A shielding member provided on the front surface of the module bracket to define an image non-display area;

A hook member rotatably provided on a rear surface of the display module and selectively coupled to the module bracket; and

And a back cover coupled to a rear surface of the display module to protect the display module.
The method of claim 1,

The optical path changing unit is a display device, characterized in that the concave lens-shaped prism array to form a reduced sized virtual image.
The method of claim 1,

The shielding member is a display device, characterized in that a thin sheet surrounded by a rectangular band around the edge of the front panel, the color is printed gradient to increase in color from the inner edge to the outer edge.
The method of claim 1,

The module bracket is an anodized aluminum plate, characterized in that the display device.
The method of claim 1,

And the module bracket is attached to the rear surface of the shielding member.
The method of claim 1,

The upper and left and right edges of the front panel are bent backwards.
The method of claim 6,

And the module bracket is mounted at a point spaced apart from the bent portion of the front panel.
The method of claim 1,

The module bracket,

An upper bracket supporting an upper edge of the display module;

And a pair of side brackets supporting left and right edges of the display module.
The method of claim 8,

The upper bracket,

A front support part in close contact with a rear surface of the front panel and on which the display module is mounted;

An upper surface support part which is bent backward from the front support part and adheres to an upper surface of the display module;

And a back support extending from the top support in the same direction as the front support to support a rear edge of the display module.
The method of claim 9,

And the front support and the rear support are spaced apart by a thickness corresponding to the thickness of the display module.
The method of claim 8,

The side bracket,

A front support part in close contact with a rear surface of the front panel and on which the display module is mounted;

A side support part bent backward from the front support part to be in close contact with the side of the display module;

And a slot into which the part of the hook member is inserted in the side support part.
The method of claim 11,

The hook member,

Body,

A proximal end extending in a direction crossing the body at one end of the body,

A distal end extending in a direction crossing the body at the other end of the body,

And a portion of the proximal end and the distal end is inserted into the slot.
The method of claim 12,

The proximal end is formed with a rotation hole which becomes the rotation center of the hook member,

The distal end is formed with a fastening hole for the fastening member is inserted,

And each of the rotation hole and the fastening hole is formed at a point close to opposite ends of the ends of the proximal end and the distal end inserted into the slot.