KR101700164B1 - Cover bottom of a curved display device - Google Patents

Cover bottom of a curved display device Download PDF

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Publication number
KR101700164B1
KR101700164B1 KR1020150123228A KR20150123228A KR101700164B1 KR 101700164 B1 KR101700164 B1 KR 101700164B1 KR 1020150123228 A KR1020150123228 A KR 1020150123228A KR 20150123228 A KR20150123228 A KR 20150123228A KR 101700164 B1 KR101700164 B1 KR 101700164B1
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KR
South Korea
Prior art keywords
curved
side wall
cover bottom
curved display
display device
Prior art date
Application number
KR1020150123228A
Other languages
Korean (ko)
Inventor
유재명
Original Assignee
(주)뉴옵틱스
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Priority to KR1020150123228A priority Critical patent/KR101700164B1/en
Application granted granted Critical
Publication of KR101700164B1 publication Critical patent/KR101700164B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G02F2001/133314—

Abstract

Provided is a cover bottom for covering a rear surface of a curved display device. A cover bottom according to one embodiment of the present invention includes: a bottom surface part which is a curved surface facing a rear surface of a curved display panel mounted in a curved display device; and a side wall part extending forward from an edge of the bottom surface part, and including a straight side wall extending forward from a straight edge of the bottom surface part and a curved side wall extending forward from a curved edge of the bottom surface part, wherein the curved side wall is thicker than the straight side wall. According to the present invention, a bottom surface of the cover bottom is suppressed from being elastically deformed into an original planar shape.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a COVER BOTTOM OF A CURVED DISPLAY DEVICE,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curved display device, and more particularly, to a cover bottom which covers the rear surface of a curved display device.

Generally, a curved display is also referred to as a curved display, and refers to a display that is curved at a certain curvature instead of a conventional flat screen. Curved displays are used not only for electronic products such as mobile, monitor, TV, but also for interior use such as exterior walls of a building, interior lighting.

In the past, projector mapping technology was used to implement a screen on a curved screen. Because of this, it has been difficult to find a customized size of curved display, and curved displays have been used only in special purpose environments such as large IMAX movie theaters and simulators. However, due to advances in display technology in the 2000s, surface displays using LCDs and OLEDs have become feasible, and the possibility of popularization and product diversification has begun to emerge.

With the development of technology, the thickness of the display has become thinner, and now the curved display becomes possible. The curved display can be realized with two technologies, LCD and OLED, which use LED as a backlight. Theoretically, OLEDs are self-luminous and have no backlight source, which is advantageous for the implementation of curved displays, but in recent years, they have achieved a high level of curved display through LCD technology.

The curved display indexes the degree of curvature of the display by the magnitude of the curvature. The larger the curvature, the less curved, and the smaller the curvature, the more curved the shape. When viewing from the front of the screen, if the product curvature and viewing distance are the same, viewers will have the same viewing distance from the center to the outer edge of the screen. The viewing distance as a whole from the outside of the screen to the center must be the same so that the picture quality factors such as color and contrast ratio are uniform and the information acquisition efficiency in the whole screen is enhanced. The optimum curvature differs because the viewing and using distances are different for each product to which the curved surface is applied. In the case of TV, the viewing distance is usually about 3 to 4 meters when considering the living environment of each country. Therefore, the optimum curvature is about 3000 to 4000 mm.

The curved display includes a housing that houses the curved display panel and the backlight unit and protects them from external impacts. The housing includes a case top and a cover bottom which are coupled to each other to cover the front and back sides of the curved display.

The cover bottom includes a plate-shaped curved surface facing the rear surface of the curved display panel. The cover bottom is preferably made of a metal material, a synthetic resin material or the like having a predetermined rigidity so as to guide the curved display panel to maintain the curvature and particularly to prevent the curvature from being deformed.

However, the plate-shaped curved surface facing the rear surface of the display panel in the cover bottom has elasticity to return to the original planar shape. Accordingly, conventionally, this curved surface is elastically deformed toward the original planar shape, thereby causing a problem in that the curvature of the curved display panel is changed. Such elastic deformation also causes unintended or unintentional spacing between the cover bottom and other components, and loosening of the fastening between the cover bottom and other components has been a problem.

Korean Patent Publication No. 10-2014-0052239 (published on May 7, 2014) Korean Patent Publication No. 10-2014-0052446 (public date: May 7, 2014) Korean Patent Publication No. 10-2014-0060078 (published on May 19, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cover bottom which suppresses the elastic deformation of the bottom surface toward the original planar shape by controlling the elasticity of the curved bottom surface.

In order to solve the above problems, a cover bottom according to an embodiment of the present invention includes a bottom surface portion and a side wall portion. The bottom surface portion is a curved surface facing the rear surface of the curved display panel built in the curved display device. The side wall portion extends forward from an edge of the bottom surface portion and includes a straight side wall and a curved side wall. The straight side wall extends forward from a straight edge of the bottom surface portion. The curved side wall extends forward from the curved corner of the bottom surface portion. The curved side wall is thicker than the straight side wall.

Preferably, the straight corners are formed on the right and left sides of the bottom surface portion, and the curved corners are formed on the upper and lower sides of the bottom surface portion.

Preferably, the curved side wall extends backward from the curved corner.

Preferably, the rear extension is made longer from the middle portion to the left and right at the curved corner. Alternatively, the rear extension is made shorter from the middle portion to the left and right at the curved corner.

According to the present invention, it is possible to suppress the elastic deformation of the bottom surface of the cover bottom toward the original planar shape. Therefore, the cover bottom can stably maintain the curvature of the curved display panel. Further, the coupling relation between the cover bottom and other components can be stably maintained.

1 is an exploded perspective view of a curved display device equipped with a cover bottom according to an embodiment of the present invention.
2 is an exploded perspective view of a housing including a cover bottom in the curved display device of Fig. 1;
3 is a perspective view of a cover bottom on which a guide holder is mounted in the curved display device of FIG.
4 is a perspective view of a guide holder in the curved display device of FIG.
Fig. 5 is a longitudinal sectional view of the curved display device of Fig. 1;
FIG. 6 is a front view of a guide holder inserted into a cover bottom and a light guide plate in the curved display device of FIG. 1; FIG.
7 is a perspective view of a cover bottom on which the light source array is mounted in the curved display device of Fig.
8 is a perspective view of the light source array in the curved display device of FIG.
9 is a cross-sectional view of the curved display device of Fig.
10 is a perspective view of a cover bottom in the curved display device of FIG.
11 is an enlarged view of a portion indicated by A in the cover bottom of Fig.
Figure 12 is an exploded perspective view of the cover bottom of Figure 10;
13 is a perspective view of a cover bottom according to another embodiment of the present invention.
Figure 14 is a front view of a curved side wall in the cover bottom of Figure 13;
15 is a perspective view of a cover bottom according to another embodiment of the present invention.
16 is a front view of a curved side wall in the cover bottom of Fig.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be illustrative of the present invention and not to limit the scope of the invention. Should be interpreted to include modifications or variations that do not depart from the spirit of the invention.

Although the terms used in the present invention have been selected in consideration of the functions of the present invention, they are generally used in general terms. However, the present invention is not limited to the intention of the person skilled in the art to which the present invention belongs . However, if a specific term is defined as an arbitrary meaning, the meaning of the term will be described separately. Accordingly, the terms used herein should be interpreted based on the actual meaning of the term rather than on the name of the term, and on the content throughout the description.

The drawings attached hereto are intended to illustrate the present invention easily, and the shapes shown in the drawings may be exaggerated and displayed as necessary in order to facilitate understanding of the present invention, and thus the present invention is not limited to the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of known configurations or functions related to the present invention will be omitted when it is determined that the gist of the present invention may be obscured.

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

1 is an exploded perspective view of a curved display device 2000 equipped with a cover bottom 1200 according to an embodiment of the present invention. Here, the curved display device 2000 should be broadly construed as a concept including both an LCD curved display device, a PDP curved display device, an OLED curved display device, and various curved display devices for outputting images. Hereinafter, a curved display device provided as an LCD will be described for convenience of explanation.

Referring to FIG. 1, a curved display device 2000 includes a housing 1100, 1200, 1300, 1400, and 1500 (denoted as a whole by 1000), a curved display panel 2200, and backlight units 2310, 2316, 2320, 2332: collectively referred to as " 2300 ").

The housing 1000 houses the curved display panel 2200 and the backlight unit 2300 therein to protect it from external impacts. Further, the housing 1000 has a function of matching the curved display panel 2200 with the backlight unit 2300.

The housing 1000 may include a case top 1100, a panel guide 1300, a guide holder 1400, and a cover bottom 1200. The case top 1100 and the cover bottom 1200 are coupled to each other so as to cover the front and rear surfaces of the curved display device 2000. The panel guide 1300 includes the optical sheet 2310 and the curved display panel 2200, And the guide holder 1400 is fitted to the side wall portion of the cover bottom 1200. The optical sheet 2310 is disposed between the optical sheet 2310 and the curved display panel 2200 so as to be spaced apart from each other. Here, the guide holder 1400 serves to fix the light guide plate 2316, the panel guide 1300, and the curved display panel 2200.

The curved display panel 2200 displays an image using light supplied from the backlight unit 2300.

The curved display panel 2200 may include two transparent substrates and a liquid crystal layer 2210 interposed therebetween. Here, the transparent substrate may be a color filter substrate 2220 and a thin film transistor (TFT) substrate 2230, respectively. When an electric signal is applied to the liquid crystal layer 2210 through the gate line and the data line of the thin film transistor substrate 2230, the arrangement state of the liquid crystal is changed to selectively transmit the light emitted from the backlight unit 2300 in units of pixels, The color filter substrate 2220 is colored to output an image. Here, the thin film transistor substrate 2230 is connected to a panel driver (not shown) such as a chip on film (COF) or a tape carrier package (TCP) through a printed circuit board (PCB) (Not shown) to receive a control signal.

The light guide plate 2316 may be disposed so as to face the rear of the curved display panel 2200 in the edge-type backlight unit 2300. The light guide plate 2316 functions to guide the light output from the light source of the light source array 2320 to the side of the curved display panel 2200. The light guide plate 2316 may have a pattern formed on the upper surface and the lower surface of the light guide plate 2316 and on the light source side surface of the light source array 2320 for improving light uniformity such as luminance improvement and hot spot improvement. A material such as PMMA (Poly Methly Methacrylate), MS or MMA may be used. A more detailed description of the light guide plate 2316 will be described later. In the case of the direct-type backlight unit, a diffusion plate for diffusing light may be provided instead of the light guide plate 2316 for guiding light.

The backlight unit 2300 may supply light to the rear of the curved display panel 2200 to cause the curved display panel 2200 to output an image.

The backlight unit 2300 may include a light source array 2320, an optical sheet 2310, and a light guide plate 2316.

The light source array 2320 may include a light source for generating light and a light source substrate on which the light source is installed. As a light source, a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEFL), a light emitting diode (LED), or the like may be used. The light source array 2320 may be installed such that the light source is laterally directed to the edge of the curved display device 2000 so that the light is incident on the light incidence surface of the light guide plate 2316 when the edge type backlight unit 2300 have. The light source substrate may be provided on the cover bottom 1200 or the light source substrate may be omitted and the light source may be directly mounted on the cover bottom 1200. [

The optical sheet 2310 is arranged to face the curved display panel 2200 at the back of the curved display panel 2200 and the curved display panel 2200 and the light guide plate 2316 As shown in FIG. Examples of the optical sheet 2310 include a diffusion sheet 2312 and a prism sheet 2314. The diffusion sheet 2312 improves the uniformity of the light output distribution by uniformly diffusing the light output from the light guide plate 2316 or the diffuser plate 2316 and improves the occurrence of a dark / bright pattern or hot spot like a moire phenomenon Can be mitigated or eliminated. The prism sheet 2314 can adjust the path of the light in the direction perpendicular to the curved display panel 2200. [ Light passing through the light guide plate 2316 or the diffusion sheet 2312 is dispersed in all directions and the prism sheet 2314 is allowed to emit the light dispersed in the direction perpendicular to the curved display panel 2200, The brightness and viewing angle of the display device 2000 can be improved. According to one example, the optical sheet 2310 is arranged such that a vertical prism sheet 2314, a horizontal prism sheet 2314, and a diffusion sheet 2312 are arranged from a side close to the curved display panel 2200 as shown in Fig. . The arrangement order of these optical sheets 2310 does not necessarily have to be arranged as in the above-described example. In other words, a part of the optical sheets 2310 may be omitted or a plurality of parts may be disposed (for example, two or more diffusion sheets 2312 may be disposed), or the order may be appropriately changed as necessary have.

The reflective sheet 2332 may be attached to the cover bottom 1200. The reflective sheet 2332 may reflect light traveling backward of the light output from the light source of the light source array 2320 toward the curved display panel 2200. The reflection sheet 2332 reflects the light emitted to the back surface of the light guide plate 2316 or the diffusion plate to the curved display panel 2200, thereby reducing light loss, thereby improving the brightness of the overall curved display device 2000.

Figure 2 is an exploded perspective view of a housing 1000 including a cover bottom 1200 in the curved display device 2000 of Figure 1 and Figure 3 is an exploded perspective view of the guide holder 1400 in the curved display device 200 of Figure 1. [ And FIG. Referring to FIGS. 2 and 3, the housing 1000 may include a case top 1100, a panel guide 1300, a guide holder 1400, and a cover bottom 1200.

The case top 1100 may cover the front edge of the curved display panel 2200. The case top 1100 may have a different shape depending on the shape of the curved display device 2000 and the narrow bezel type curved display device 2000 may include a bezel 2102 covering the front edge of the curved display panel 2200, May be formed to have a narrow width. In some cases, it is possible that the case top 1100 is provided with little or no bezel.

The panel guide 1300 may be provided in the form of a frame having an open center and the panel guide 1300 may be seated in a guide holder 1400 to be described later so as to be separated from the optical sheet 2310 and the curved display panel 2200 .

The cover bottom 1200 may cover the rear surface of the curved display device 2000 and may be received inside the case top 1100.

The cover bottom 1200 includes a bottom surface portion 1240 and a side wall portion 1220, and may be provided in the form of an open top box.

The bottom surface portion 1240 may be provided in the form of a plate facing the rear surface of the curved display panel 2200, and corresponds to a bottom portion of a box shape. At this time, the bottom surface portion 1240 may be provided as a curved surface having a curvature similar to that of the curved display panel 2200. The radius of curvature of the curved display panel 2200 may be 3000 to 7000 mm, and the radius of curvature may be appropriately changed depending on the size of the curved display device 2000. Therefore, the edge of the bottom surface portion 1240 may be formed as a straight edge formed on the right and left sides of the curved surface and a curved edge formed on the upper and lower sides of the curved surface.

The side wall portion 1220 extends forward from the edge of the bottom surface portion 1240 and includes a straight side wall 1222 and a curved side wall 1224.

The straight side wall 1222 extends forward from the straight edge of the bottom surface portion 1240 and may be formed at both ends along the longitudinal direction of the bottom surface portion 1240. A light source array 2320 may be installed on the linear side wall 1222.

The curved side wall 1224 extends forward from the curved edge of the bottom surface portion 1240 and may be formed at both ends along the width direction of the bottom surface portion 1240. The curved side wall 1224 may extend at a constant height and may have a curvature similar to that of the curved display panel 2200. The curved side wall 1224 thus formed can be fitted with the guide holder 1400. The guide holder 1400 can fix the light guide plate 2316 and the panel guide 1300.

4 is a perspective view of the guide holder 1400 in the curved display device 2000 of FIG. Referring to FIG. 4, the guide holder 1400 may include a body portion 1420 and a fixing portion 1440.

The body portion 1420 is fitted to the curved side wall 1224 and the fixing portion 1440 is inserted between the light guide plate 2316 and the panel guide 1300 to form the light guide plate 2316, the panel guide 1300, 2200 are fixed between the case top 1100 and the cover bottom 1200. At this time, the guide holder 1400 can be fastened to the fastening member 1500 through a through-hole H formed in one side.

The body portion 1420 includes an outer wall disposed on the outside of the curved side wall 1224 of the cover bottom 1200 in a " C " shape, an inner wall disposed on the inner side of the curved side wall 1224, And a top wall that connects the inner sidewall and is disposed at the top of the curved sidewall 1224. In addition, the body portion 1420 may be formed with an insertion groove 1422 having a bottom open. The insertion groove 1422 may be formed to have a thickness corresponding to the curved side wall 1224 so that the curved side wall 1224 of the cover bottom 1200 can be inserted. That is, the insertion groove 1422 may be a long rectangular groove along the curved side wall 1224, and the depth of the insertion groove 1422 may be shallower than the height of the curved side wall 1224.

A through hole H may be formed on an inner wall of the body portion 1420 and may include a coupling member 1500 for coupling and fixing the case top 1100, the guide holder 1400, and the cover bottom 1200 May be formed for insertion. As the fastening member 1500 is screwed into the through hole H, the case top 1100, the guide holder 1400, and the cover bottom 1200 can be connected and fixed in this order.

The fixing portion 1440 may protrude from the inner side wall of the body portion 1420 to the inside of the cover bottom 1200. The lower portion of the fixing portion 1440 may have a shape corresponding to the edge of the light guide plate 2316, . The fixing portion 1440 may be formed at a height enough to contact the upper surface of the light guide plate 2316 and the fixing portion 1440 may contact the light guide plate 2316 in the direction of the bottom surface portion 1240, Can be fixed. The panel guide 1300 may be mounted on the upper surface of the fixing portion 1440 and the thickness of the fixing portion 1440 may be formed to have a thickness sufficient to support the light guide plate 2316 and the panel guide 1300 .

5 to 10 guide holders 1400 may be installed along a pair of curved side walls 1224 at regular intervals. At this time, the number of guide holders 1400 may vary depending on the size of the curved display panel 2200, and it is possible to install less than 5 to 10 or more.

The guide holder 1400 may be installed on the straight side wall 1222 or on the straight side wall 1222 on which the light source array 2320 is not installed.

5 is a longitudinal sectional view of the curved display device 2000 of FIG. Referring to FIG. 5, a curved display panel 2200 and a backlight unit 2300 may be interposed between the case top 1100 and the cover bottom 1200.

The reflective sheet 2332 and the light guide plate 2316 may be seated on the bottom surface portion 1240 of the cover bottom 1200 and the reflective sheet 2332 may be omitted and only the light guide plate 2316 may be seated.

 The light guide plate 2316 is placed on the bottom surface portion 1240 of the cover bottom 1200 and then the insertion groove 1422 of the guide holder 1400 is fitted and fixed to the curved side wall 1224 of the cover bottom 1200. At this time, the lower surface of the stepped portion 1440 of the guide holder 1400 can be pressed while pressing the light guide plate 2316, and thus the light guide plate 2316 can be fixed. Further, the optical sheet 2310 may be seated on the upper surface of the light guide plate 2316.

A plurality of such guide holders 1400 may be provided at regular intervals along the curved side wall 1224 of the cover bottom 1200 and the number of the guide holders 1400 may be set to 5 to 10 along the respective curved side walls 1224 Do. However, the number of guide holders 1400 may vary depending on the size of the curved display panel 2200, and may be less than 5 to 10 or more. In addition, the interval at which the guide holder 1400 is installed may vary according to the curvature of the curved display panel 2200.

The panel guide 1300 may be seated and fixed on the upper surface of the fixing portion 1440 of the guide holder 1400. The panel guide 1300 may be fixed to the upper surface of the fixed portion 1440 of the guide holder 1400 such that the optical sheet 2310 and the curved display panel 2200 are spaced apart can do.

After the backlight unit 2300 is fixed by the guide holder 1400, the curved display panel 2200 can be seated on the upper surface of the upper wall of the body portion 1420 of the guide holder 1400. The upper surface of the curved display panel 2200 that is seated on the upper wall of the guide holder 1400 may contact the lower surface of the case tower 1100 and may be fixed between the case tower 1100 and the guide holder 1400 . At this time, the case top 1100 can be matched so that the curved side wall 1224 of the cover bottom 1200 and the outer side of the guide holder 1400 are received inside the case top 1100. The through holes H may be formed in the curved side wall 1224 of the case top 1100 and the cover bottom 1200 at a size and position corresponding to the through holes H formed in the outer wall of the guide holder 1400 . The fastening member 1500 is inserted into the through hole H so that the case top 1100, the guide holder 1400 and the cover bottom 1200 can be screwed and fixed.

6 is a front view of the guide holder 1400 inserted into the cover bottom 1200 and the light guide plate 2316 in the curved display device 2000 of FIG. Referring to FIG. 6, a predetermined space may be formed between the guide holder 1400 and the cover bottom 1200 and the light guide plate 2316. That is, a certain space may be formed between the upper wall of the body portion 1420 of the guide holder 1400 and the upper end of the curved side wall 1224, and a certain space may be formed between the lower surface of the fixing portion 1440 and the upper surface of the light guide plate 2316 . 6 shows an exaggerated view of the space between the guide holder 1400 and the cover bottom 1200 and the light guide plate 2316 for convenience of explanation. The guide holder 1400, the cover bottom 1200, The space formed between the light guide plates 2316 may be formed so that there is almost no space. Since the light guide plate 2316 is provided in a flexible material, when the guide holder 1400 is installed, the light guide plate 2316 is brought into close contact with the guide holder 1400 by the force pressed by the guide holder 1400, And the light guide plate 2316 may not be formed.

In order to minimize the space formed between the guide holder 1400 and the cover bottom 1200 and the light guide plate 2316, it is preferable to provide a guide holder 1400 having a length less than a predetermined size. For example, when the guide holder 1400 has a length equal to or greater than a predetermined size, the guide holder 1400 has a longer section formed by the plane, and the guide bottom 1400 and the cover bottom 1200 and the light guide plate 2316, Can be increased. When the space between the guide holder 1400 and the cover bottom 1200 and the light guide plate 2316 formed in a curved surface is enlarged, the pressure applied to the guide holder 1400 becomes large and the guide holder 1400 can be broken, The curvature of the display device 2000 may change and the quality of the image output to the curved display panel 2200 may be degraded.

7 is a perspective view of a cover bottom 1200 on which the light source array 2320 is mounted in the curved display device 2000 of FIG. 7, the light source array 2320 may be installed on the straight side wall 1222 of the cover bottom 1200 and may be provided on one of the straight side walls 1222 located on both sides of the cover bottom 1200, May be provided on both of the straight side walls 1222 of FIG. This may vary depending on the position of the light-incoming surface of the light guide plate 2316.

8 is a perspective view of the light source array 2320 in the curved display device 2000 of FIG. Referring to FIG. 8, a light source substrate 2324 and a light source 2326 may be installed in the light source array 2320.

The light source array 2320 may be provided in a 'C' shape in which a fixing groove 2322 having a long length and an open bottom is formed. At this time, the depth of the fixing groove 2322 may be formed to be lower than or equal to the height of the straight side wall 1222. An inner wall disposed on the inner side of the straight side wall 1222 and an upper wall disposed on the upper side of the straight side wall 1222 to connect the inner wall and the inner wall, . ≪ / RTI > The light source substrate 2324 may be provided on the inner wall of the light source substrate 2324. The light source substrate 2324 may be provided with a plurality of light sources 2320 at predetermined intervals, (2326) may be installed.

The width of the light source array 2320 may vary according to the cover bottom 1200 and the light guide plate 2316 and the number of the light sources 2326 installed in the light source array 2320 may be varied depending on the size of the curved display device 2000 May be provided differently.

FIG. 9 is a cross-sectional view of the curved display device 2000 of FIG. 9, the light source array 2320 may be inserted and fixed to the straight side wall 1222 of the cover bottom 1200 so that the light source 2326 faces the light guide plate 2316. [ The light source array 2320 may be installed on both side linear side walls 1222 of the cover bottom 1200 and is determined according to the size of the curved display device 2000. At this time, the through holes H may be formed in the linear side wall 1222 of the case top 1100 and the cover bottom 1200 at a size and position corresponding to the through holes H formed in the outer wall of the light source array 2320 And the fastening member 1500 is inserted into the through hole H so that the case top 1100, the light source array 2320 and the cover bottom 1200 can be screwed and fixed.

10 is a perspective view of a cover bottom 1200 in the curved display device 2000 of FIG. Referring to FIG. 10, the bottom surface portion 1240 of the cover bottom 1200 is a curved surface. The bottom surface portion 1240 may be provided as a curved surface corresponding to the curvature of the curved display panel 2200 or having a similar curvature. For example, the radius of curvature of the curved display panel 2200 is 3000 to 7000 mm. The radius of curvature may be appropriately changed depending on the size of the curved display device 2000. [ The bottom surface portion 1240 has straight edges formed on the left and right sides and curved edges formed on the upper and lower sides.

The straight side wall 1222 extends forward from the straight edge of the bottom surface portion 1240. Accordingly, the straight side wall 1222 is formed at both ends along the longitudinal direction of the bottom surface portion 1240. The extended height of the straight side wall 1222 is the same for all the straight corners. However, the extended height of the straight side wall 1222 does not necessarily have to be the same for all the straight corners, and can be implemented in various forms.

Curved side wall 1224 extends forward from the curved edge of bottom surface portion 1240. Accordingly, the curved side wall 1224 is formed at both ends along the width direction of the bottom surface portion 1240. The height of the curved side wall 1224 is high at the portion where the through hole H for screwing the fastening member 1500 is formed and low at the portion between the through holes H. [ However, the height of the curved sidewall 1224 may be varied to be the same across the whole of the curved edge and may be implemented in various forms.

11 is an enlarged view of a portion indicated by A in the cover bottom 1200 of FIG. 11, the thickness T c of the curved side wall 1224 is greater than the thickness T s of the straight side wall 1222. Preferably, the curvilinear sidewall 1224 has a thickness T c of 1.5 to 2.5 mm and the straight sidewall 1222 has a thickness T s of 0.3 to 1.3 mm. More preferably, the curvilinear sidewall 1224 has a thickness T c of 2.0 mm and the straight sidewall 1222 has a thickness T s of 0.8 mm. In this manner, in the cover bottom 1200, the thickness T c of the curved side wall 1224 is thicker than the thickness T s of the straight side wall 1222 to control the elasticity of the bottom surface portion 1240.

12 is an exploded perspective view of the cover bottom 1200 of FIG. Referring to FIG. 12, the bottom surface portion 1240 is formed into a curved surface by roll bending. The straight side wall 1222 is formed by bending both ends of the bottom surface portion 1240 along the longitudinal direction by 90 degrees. The bending angle can be changed within a range that can perform the function of the cover bottom 1200. Curved side wall 1224 is welded to bottom surface portion 1240.

The straight side wall 1222 and the curved side wall 1224 can be made of EGI (Electrolytic Galvanized Iron). The curved side wall 1224 welded to the curved edge of the bottom surface portion 1240 has a thickness T c that is thicker than the thickness T s of the straight side wall 1222, The bottom surface portion 1240, which is a curved surface, is suppressed from being elastically deformed toward the original planar shape, as compared with the conventional structure which is the same as the thickness (T s ) of the curved surface portion 1222.

FIG. 13 is a perspective view of a cover bottom 1202 according to another embodiment of the present invention, and FIG. 14 is a front view of a curved side wall 1230 in the cover bottom 1202 of FIG. Referring to Figs. 13 and 14, the cover bottom 1202 is a modification of the curved side wall 1224 in the cover bottom 1200 of Fig.

The curved side wall 1230 of the cover bottom 1202 not only extends forward from the curved edge of the bottom surface portion 1240 but also extends backward from the curved edge. Accordingly, the curved side wall 1230 includes a front extended portion 1226, which is a forward extending portion with respect to a curved corner contacting portion 1233, which is a portion welded to a curved corner of the bottom surface portion 1240, Which is a rear extension portion 1231.

The curved side wall 1230 has a rear extension portion 1231 in addition to the front extended portion 1226 so that the curved side wall 1230 has a curved bottom surface portion 1240 The elastic deformation toward the original planar shape is further suppressed.

The forward extension 1226 corresponds to the curved side wall 1224 of the above-described embodiment. The length extending rearward from the rear extension portion 1231 is longer toward the left and right than the middle portion C 1 between the left and right sides of the curved corner contact portion 1233. That is, the rearward extension of the curved side wall 1230 in the cover bottom 1202 to which the curved side wall 1230 is coupled is longer from the middle portion to the left and right at the curved corner. Thus, the elasticity at the left and right sides of the bottom surface portion 1240 is efficiently and intensively suppressed.

FIG. 15 is a perspective view of a cover bottom 1204 according to another embodiment of the present invention, and FIG. 16 is a front view of a curved side wall 1235 in the cover bottom 1204 of FIG. 15 and 16, the cover bottom 1204 is a modification of the rear extension 1231 of the curved side wall 1230 of the cover bottom 1202 of FIG.

In the curved side wall 1235 of the cover bottom 1204, the length extending rearward from the rearward extending portion 1231 is shorter leftward and rightward from the left and right intermediate portions C 2 of the curved corner contact portions 1233. That is, the rearward extension of the curved side wall 1235 in the cover bottom 1204 to which the curved side wall 1235 is coupled is made shorter from the middle portion to the left and right at the curved corner.

As an example of such a configuration, the rearward extension 1236 of the curved side wall 1235 includes an intermediate extension 1237, a left extension 1238, and a right extension 1239. The middle extended portion 1237 is a portion extending rearward from the middle portion C 2 of the edge contacting portion 1233 and the left extending portion 1238 is a portion extending from the left portion of the middle portion C 2 of the corner contacting portion 1233 And the right extension 1239 is a portion extending rearward from the right portion of the middle portion C 2 of the corner contact portion 1330. The length extending backward from the intermediate extension 1237 is constant. The length extending rearward from the right end of the left extension 1238 and the length extending backward from the left end of the right extension 1239 are the same as the length extending backward from the intermediate extension 1237. In the left extension 1238, the rear extension is made shorter toward the left side of the edge contact portion 1233, and in the right extension 1239, the rear extension is made shorter toward the right side of the edge contact 1233. That is, in the state where the curved side wall 1235 is coupled to the bottom surface portion 1240, the leftward extending portion 1238 has a shorter rearward extension toward the left side of the curve edge, and the rightward extending portion 1239 has a curved edge The closer to the right, the shorter the rear extension. Accordingly, the elasticity in the middle portion of the bottom surface portion 1240 is efficiently and intensively suppressed.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention described above can be implemented separately or in combination.

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

1000: housing 1100: case top
1200, 2002, 1204: cover bottom 1220: side wall part
1222: Straight side wall 1224, 1230, 1235: Curved side wall
1226: forward extension 1233: curved corner contact
1231, 1236: rear extension part 1237: center extension part
1238: left extension 1239: right extension
1240: bottom surface portion 1300: panel guide
1400: Guide holder 1420: Body part
1422: insertion groove 1440:
1500: fastening member 2000: curved display device
2200: a curved display panel 2210: a liquid crystal layer
2220: Color filter substrate 2230: Thin film transistor substrate
2300: backlight unit 2310: optical sheet
2312 diffusion sheet 2314 prism sheet
2316: light guide plate 2320: light source array
2322: Fixing groove 2324: Light source substrate
2326: light source 2332: reflective sheet

Claims (5)

A cover bottom covering a rear surface of a curved display device,
A bottom surface portion of a curved surface facing the rear surface of the curved display panel built in the curved display device; And
And a side wall portion extending forward from an edge of the bottom surface portion,
The side wall portion
A straight side wall extending forward from a straight edge of the bottom surface portion; And
And a curved side wall extending forward from a curved corner of the bottom surface portion,
Wherein the curved side wall is thicker than the straight side wall.
The cover bottom according to claim 1, wherein the straight corners are formed on the left and right sides of the bottom surface portion, and the curved corners are formed on the top and bottom sides of the bottom surface portion.
The cover bottom according to claim 2, wherein the curved side wall has a forward extension extending forward from the curved edge and a rear extension extending rearward from the curved edge.
4. The cover bottom according to claim 3, wherein a length extending rearward from the rear extension is longer from the middle portion to the left and right at the curved corner.
4. The cover bottom according to claim 3, wherein a length extending rearward from the rear extension portion is shorter from the middle portion to the left and right at the curved corner.
KR1020150123228A 2015-08-31 2015-08-31 Cover bottom of a curved display device KR101700164B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030020184A (en) * 2001-09-03 2003-03-08 삼성전자주식회사 Liquid crystral display module and liquid crystal display device having the same
KR20140052239A (en) 2012-10-23 2014-05-07 삼성디스플레이 주식회사 Curved display apparatus
KR20140052446A (en) 2012-10-24 2014-05-07 삼성전자주식회사 Display apparatus
KR20140060078A (en) 2012-11-09 2014-05-19 삼성전자주식회사 Curved display apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030020184A (en) * 2001-09-03 2003-03-08 삼성전자주식회사 Liquid crystral display module and liquid crystal display device having the same
KR20140052239A (en) 2012-10-23 2014-05-07 삼성디스플레이 주식회사 Curved display apparatus
KR20140052446A (en) 2012-10-24 2014-05-07 삼성전자주식회사 Display apparatus
KR20140060078A (en) 2012-11-09 2014-05-19 삼성전자주식회사 Curved display apparatus

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