CN112762322A

CN112762322A - Display device

Info

Publication number: CN112762322A
Application number: CN201911002651.3A
Authority: CN
Inventors: 朱孟磊; 商滕义; 董学会
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2021-05-07
Also published as: WO2021078149A1

Abstract

The invention discloses a display device, relates to the field of display, realizes multi-screen interactive display, increases a display area, and solves the problem that the display device needs to be supported by boxes such as a television cabinet and the like. The display device includes: the main screen is used for displaying a first image; and the auxiliary screen is fixedly connected to the bottom end of the main screen and is used for displaying a second image and supporting the main screen. The invention is used for displaying images.

Description

Display device

Technical Field

The invention relates to the field of display, in particular to a display device.

Background

With the development of science and technology, display devices are gradually popularized in daily life of residents, and requirements of users on the display devices are higher and higher. As the demand for simultaneous processing of a plurality of tasks by a user rises, a display device including only one screen has not been able to satisfy the demand of the user.

The current display device, such as a liquid crystal television, is generally a screen, and is placed on a television cabinet of a user through an installation base, and the back plate adopts an integral bending mode of a bottom plate and a side plate of a stamping process, so that the appearance modeling of the whole display device is not facilitated, and the difficulty of the manufacturing process is high. In addition, when using the lcd tv, the user needs to prepare a cabinet structure such as a tv cabinet to support the lcd tv.

Disclosure of Invention

The embodiment of the invention provides a display device, which realizes multi-screen interactive display, increases the display area and solves the problem that the display device needs to be supported by boxes such as a television cabinet and the like.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

a display device, comprising: a home screen for displaying a first image; and the auxiliary screen is fixedly connected to the bottom end of the main screen and is used for displaying a second image and supporting the display device.

The display device provided by the embodiment of the invention comprises a main screen and an auxiliary screen, wherein the main screen is used for displaying a first image, the auxiliary screen is fixedly connected to the bottom end of the main screen, and the auxiliary screen is used for displaying a second image and supporting the display device. Therefore, the display device can control the display height of the main screen through the structural design of the auxiliary screen, and the display device can be stably placed on a plane, so that a user does not need to prepare a box structure such as a television cabinet when using the display device. In addition, the auxiliary screen can play a role of auxiliary display, for example, when a network television is watched by using the main screen, the auxiliary screen can be used for browsing program introduction of other channels or carrying out operations such as internet inquiry information and the like; the secondary screen can also be displayed in combination with the primary screen to form a larger display screen. Compared with the prior art, the display device provided by the embodiment of the invention realizes the interactive display of multiple screens by combining the main screen and the auxiliary screen, and increases the display area; meanwhile, through the structural design of the auxiliary screen, the display height of the main screen can be controlled, the whole display device is supported, and the problem that the display device needs to be supported by boxes such as a television cabinet is solved.

Drawings

FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a display device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a mounting support mechanism side of the display device according to the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a supporting mechanism of a display device according to an embodiment of the present invention;

fig. 5 is a perspective view of the installation support mechanism side of the display device of the embodiment of the present invention;

fig. 6 is a partially enlarged view of a display device according to an embodiment of the present invention at a metal adaptor;

FIG. 7 is an enlarged view of a portion of a rotational connection between a main panel and a sub-panel of the display device according to the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a backplane of a display device according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of a back plate of a display device according to an embodiment of the invention;

FIG. 10 is an exploded view of a backplane of a display device according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a left frame of a back plate of a display device according to an embodiment of the invention;

fig. 12 is an exploded view of the internal structure of a display device according to an embodiment of the present invention;

fig. 13 is a schematic structural view of a lamp panel of a display device according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a sub-lamp panel of the display device according to the embodiment of the present invention;

fig. 15 is a cross-sectional view of a sub-lamp panel of a display device according to an embodiment of the present invention;

fig. 16 is a sectional view showing an internal structure of a display device according to an embodiment of the present invention;

FIG. 17 is a back side view of a backplane of a display device according to an embodiment of the present invention;

FIG. 18 is a partially enlarged view of a portion of the display device according to the embodiment of the present invention where the middle frame and the mounting portion are engaged with each other by the resilient piece;

fig. 19 is a schematic structural diagram of a spring plate of the display device according to the embodiment of the invention;

fig. 20 is a schematic structural view illustrating a fixing structure of the elastic sheet and the mounting portion of the display device according to the embodiment of the invention;

fig. 21 is a second schematic structural view illustrating a fixing structure of the elastic sheet and the mounting portion of the display device according to the embodiment of the invention;

FIG. 22 is a schematic view of a structure of a display device according to an embodiment of the present invention, in which a suspension loop is fixed to a mounting portion;

fig. 23 is a schematic structural view of a hanger of a display device according to an embodiment of the invention.

Reference numerals:

100-main screen; 200-secondary screen; 210-a housing; 300-a support mechanism; 310-a first fixture; 320-a second fixture; 330-a support; 400-a metal adaptor; 410-a fixed plate; 420-clamping column; 430-a shielding plate; 500-a first rotating metal piece; 600-a second rotating metal part; 1-a back plate; 11-a back plate body; 111-an avoidance structure; 112-reinforcing ribs; 12-a frame; 121-a mounting portion; 1211-engaging groove; 122-a fixed part; 123-upper frame; 1231-a first card slot; 1232-a second card slot; 124-lower frame; 125-left frame; 1251-a first card; 126-right frame; 1261-a second card; 13-a spring plate; 131-a top plate; 132-a first side plate; 133-a second sideboard; 134-elastic hook; 135-buckling; 14-hanging a lug; 141-a fixed base; 142-a bump; 2-a lamp panel; 21-sub lamp panel; 211-wiring terminals; 212-a lamp panel driving module; 3-a stereo reflector plate; 4-a reflective film; 41-bluish-reddish-green film; 5-middle frame; 6-a diffusion plate; 7-quantum dot membrane; 8-an optical membrane; 9-a display panel; 10-rear shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the display device includes: a main screen 100, the main screen 100 being used to display a first image; and a sub-screen 200, the sub-screen 200 being fixedly coupled to a bottom end of the main screen 100, the sub-screen 200 being used to display a second image and to support a display device.

Referring to fig. 1 and 2, the display device according to an embodiment of the present invention includes a main screen 100 and a sub-screen 200, wherein the main screen 100 is used for displaying a first image, the sub-screen 200 is fixedly connected to a bottom end of the main screen 100, and the sub-screen 200 is used for displaying a second image and supporting the display device. Therefore, the display device can control the display height of the main screen 100 through the structural design of the auxiliary screen 200, and ensure that the display device can be stably placed on a plane, so that a user does not need to prepare a box structure such as a television cabinet when using the display device. In addition, the sub-screen 200 may play a role of auxiliary display, for example, when watching a network television by using the main screen 100, the sub-screen 200 may be used to browse program introductions of other channels or perform operations such as internet query information; the secondary screen 200 may also be displayed in combination with the primary screen 100 to form a larger display screen. Compared with the prior art, the display device provided by the embodiment of the invention realizes the interactive display of multiple screens by combining the main screen 100 and the auxiliary screen 200, and increases the display area; meanwhile, through the structural design of the auxiliary screen 200, the display height of the main screen 100 can be controlled and the whole display device can be supported, so that the problem that the display device needs to be supported by boxes such as a television cabinet is solved.

It should be noted that the display device according to the embodiment of the present invention further includes a first audio module and a second audio module, the first audio module is disposed in the main screen 100 and is used for collecting and playing audio data of the main screen 100, and the second audio module is disposed in the sub-screen 200 and is used for collecting and playing audio data of the sub-screen 200. The second audio module can operate independently, that is, when the main screen 100 does not work and the sub-screen 200 does not display images, the sub-screen 200 can also be used as a single intelligent sound box.

The structure of the sub-screen 200 supporting the entire display device is not exclusive, and in some embodiments, referring to fig. 1 and 2, the sub-screen 200 includes a housing 210, and a bottom wall of the housing 210 is attached to the ground to support the display device to be placed on the ground. At this time, when the display height of the main screen 100 is constant, the lower end of the sub-screen 200 does not need to separately design a support structure, such as a mounting base, etc., so that a spatial region below the main screen 100 is fully utilized, and the display area of the sub-screen 200 is large, and the structure is simple and easy to implement.

In order to increase the stability of the display device placed on the ground, referring to fig. 2, the end of the bottom wall of the casing 210 on the display image side of the display device extends along the horizontal plane away from the surface of the display device displaying images, so as to prevent the display device from tilting towards the display image side of the display device. In this case, the area where the bottom wall of the housing 210 on the display image side of the display device is attached to the ground is increased, so that the display device can be effectively prevented from falling down to the display image side of the display device, and the stability of the display device placed on the ground can be further increased. In addition, the bottom wall of the casing 210 gradually narrows toward the middle and has a smaller thickness at the display image side of the display device, which not only saves materials, but also is more beautiful.

It will be appreciated that when the display device described above is placed against a wall, the surface of the display device remote from the displayed image is backed against the wall without concern for the display device tipping over to the side of the display device remote from the displayed image. However, during use of the display device, it often occurs that the display device is not placed against a wall. Therefore, in order to prevent the display device from falling to the side of the display device away from the display image, and further increase the stability of the display device placed on the ground, as shown in fig. 2 and 3, the display device further includes a supporting mechanism 300, the supporting mechanism 300 is disposed on the surface of the display device away from the display image in a vertical direction, and the bottom end of the supporting mechanism 300 is located at the same level as the bottom wall of the housing 210, so as to prevent the display device from falling to the side of the display device away from the display image. In this case, the display device is placed on the ground, and the bottom wall of the housing 210 and the bottom end of the supporting mechanism 300 are both attached to the ground, so that the display device can be effectively prevented from falling to the side of the display device far away from the display image, and the stability of the display device placed on the ground is further increased.

The supporting mechanism 300 may be fixedly connected to a surface of the main screen 100 away from the displayed image, may also be fixedly connected to a surface of the sub-screen 200 away from the displayed image, and may also be fixedly connected to both the surface of the main screen 100 away from the displayed image and the surface of the sub-screen 200 away from the displayed image. Preferably, the support structure is fixedly coupled to both the surface of the main screen 100 remote from the displayed image and the surface of the sub-screen 200 remote from the displayed image, which also enhances the reliability of the connection between the main screen 100 and the sub-screen 200. Specifically, referring to fig. 2, 3 and 4, the supporting mechanism 300 includes a first fixing member 310 and a second fixing member 320, the first fixing member 310 is fixedly connected to the surface of the main panel 100 away from the display screen, and the second fixing member 320 is fixedly connected to the top end of the sub-panel 200. Generally, the fixed connection is a screw connection, for example, the first fixing member 310 is fastened to the surface of the main screen 100 far from the display screen by screws in the horizontal direction, the second fixing member 320 is fastened to the top end of the auxiliary screen 200 by screws in the vertical direction, and by fixing the two screw connection structures, a stable triangular structure is formed between the supporting mechanism 300 and the main screen 100 and the auxiliary screen 200, meanwhile, the connection reliability between the supporting mechanism 300 and the main screen 100 and the auxiliary screen 200 is high, and the connection reliability between the main screen 100 and the auxiliary screen 200 is enhanced.

Referring to fig. 2, 3 and 4, the supporting mechanism 300 further includes a supporting body 330, the first fixing member 310 and the second fixing member 320 may be integrally formed, and the supporting body 330, the first fixing member 310 and the second fixing member 320 may also be fixedly connected by a detachable connection manner, such as clamping or screwing. The first fixing member 310 may be formed by extending a surface of the supporting body 330, which is attached to the main screen 100 at one end of the supporting body 330 and is away from the display screen, so that the first fixing member 310 and the supporting body 330 are integrally formed, the installation process of the first fixing member 310 and the supporting body 330 is avoided, the processing process is simple, the first fixing member 310 and the supporting body 330 may be integrally formed by injection molding, and the injection molding only provides a relatively simple processing method with low cost, and does not limit the protection scope of the embodiment of the present invention, and other processing methods may be adopted. The second fixing member 320 is located at the middle position of the supporting body 330, and is not easy to be directly injection-molded with the supporting body 330 into a whole, so that the second fixing member 320 is detachably connected with the supporting body 330. As can be seen from the above description, in the embodiment of the invention, the first fixing element 310 is integrally formed with the supporting body 330, the first fixing element 310 is located at one end of the supporting body 330 close to the main screen 100, and the second fixing element 320 is detachably connected with the supporting body 330. Since the screw joint is more reliable than other detachable connections, such as a snap joint, and the screwed connection is not easily separated from each other by the connecting member, the second fixing member 320 is connected to the supporting body 330 through the screw joint structure. Specifically, the second fixing member 320 includes a first fixing portion attached to the supporting body 330 and a second fixing portion attached to the top end of the sub-screen 200, and the first fixing portion is fastened to the supporting body 330 by a first screw and the second fixing portion is fastened to the top end of the sub-screen 200 by a second screw.

It should be noted that a positioning structure is further disposed between the first fixing portion and the supporting body 330, and the positioning structure includes a positioning column and a positioning groove, where one of the positioning column and the positioning groove is disposed on the first fixing portion, and the other is disposed on the supporting body 330. At this time, after the first fixing portion and the supporting body 330 are positioned by the positioning structure, the first fixing portion and the supporting body 330 are conveniently screwed, and the reliability of connection between the first fixing portion and the supporting body 330 is high in cooperation with the positioning structure.

The housing 210 of the main screen 100 and the housing 210 of the auxiliary screen 200 are usually made of plastic materials, and when the main screen 100 and the auxiliary screen 200 are directly connected and fixed through the housing 210, the connection of the housings 210 is easily deformed due to the large weight of the main screen 100, thereby causing connection failure. Therefore, in order to avoid the above problem, as shown in fig. 3, 5 and 6, metal adapters 400 are disposed on both left and right sides of the connection between the main screen 100 and the sub-screen 200, and the main screen 100 and the sub-screen 200 are fixedly connected through the metal adapters 400. In this case, since the strength of metal is greater than that of plastic, the main screen 100 and the sub-screen 200 are fixedly connected through the metal adaptor 400, so that the deformation of the joint between the main screen 100 and the sub-screen 200 can be effectively prevented, and the reliability of connection is ensured; in addition, the metal adapters 400 are disposed at the left and right sides of the joint of the main screen 100 and the sub-screen 200, which facilitates the installation and removal of the main screen 100 and the sub-screen 200.

In some embodiments, the metal adaptor 400 includes a fixing plate 410 and a clip 420, the fixing plate 410 is attached to a surface of the main screen 100 away from the display image, and the clip 420 is attached to a top end of the sub-screen 200; the fixing plate 410 is provided with an avoiding socket corresponding to the clamping column 420, and the clamping column 420 extends into the avoiding socket and is connected with the fixing plate 410 in a threaded manner. Specifically, as shown in fig. 5 and 6, an avoiding inserting opening is provided at the lower side of the fixing plate 410, and two screwing structures are correspondingly provided on the clamping column 420 and the fixing plate 410. At this time, the card column 420 is firstly extended into the avoiding inserting opening, the screw hole on the card column 420 corresponds to the screw hole on the fixing plate 410, and then the card column 420 and the fixing plate 410 are screwed together by using a screw.

It should be noted that the shielding plate 430 is further disposed on the outer side of the fixing plate 410, and the shielding plate 430 is clamped on the outer side of the fixing plate 410 to prevent the clamping column 420 and the fixing plate 410 from being exposed on the outer surface of the display device, so that the display device is more fashionable and beautiful.

It should be understood that the eyes of the user form a slight downward gazing angle with the main screen 100, so that the neck muscles can be relaxed, the line of sight of the user is perpendicular to the main screen 100, the reflected light is not easy to see, and the display effect of the main screen 100 is good. Based on this, in order to give a better use experience to the user, referring to fig. 7, the main screen 100 is rotatably connected with the sub screen 200. In this case, the user can adjust the degree of freedom of the front-back movement of the main screen 100 with respect to the sub-screen 200 according to individual needs, so as to adjust the main screen 100 to an inclination angle for optimal viewing.

Specifically, referring to fig. 7, the display device further includes a first rotating metal member 500 and a second rotating metal member 600, wherein the first rotating metal member 500 is a metal strip of the semicircular protrusion 142; the second rotary metal member 600 is a metal strip with a semicircular recess; the first rotating metal member 500 and the second rotating metal member 600 are respectively disposed on the main screen 100 and the sub-screen 200, and include the following two conditions: first, a first rotating metal piece 500 is installed at the bottom end of the main screen 100, a second rotating metal piece 600 is installed at the top end of the auxiliary screen 200, and a metal strip of the semicircular protrusion 142 is clamped into a metal strip of the semicircular recess, so that the main screen 100 and the auxiliary screen 200 can be rotatably adjusted; secondly, the second rotating metal member 600 is installed at the bottom end of the main screen 100, the first rotating metal member 500 is installed at the top end of the auxiliary screen 200, and the metal strip of the semicircular protrusion 142 is clamped into the metal strip of the semicircular recess, so that the main screen 100 and the auxiliary screen 200 can be rotatably adjusted. In this way, the metal strip of the semicircular protrusion 142 extends into the metal strip of the semicircular recess, and the user can move the main screen 100 back and forth according to the individual watching effect, so that the main screen 100 is adjusted to the best watching inclination angle, and the user experience is high.

It should be noted that the internal structure of the main screen 100 is similar to that of the sub-screen 200, and the main screen 100 is taken as an example to be described in detail below. The internal structure of the main screen 100 is described as the internal structure of a single-screen display device, and the main screen 100 and the single-screen display device are not different except for the description. In addition, for convenience of description, the display device mentioned below is only a single-screen display device to describe an internal structure, and is not limited to the single-screen display device.

Referring to fig. 8 and 9, the display device includes a back panel 1, the back panel 1 includes a back panel main body 11 and a bezel 12, and the bezel 12 is detachably connected to the back panel main body 11 around the back panel main body 11.

Referring to fig. 8 and 9, the display device according to the embodiment of the present invention includes a back panel 1, where the back panel 1 includes a back panel main body 11 and a frame 12, and the frame 12 is detachably connected to the back panel main body 11 around the back panel main body 11. Therefore, the back plate 1 is manufactured without being integrally formed by a stamping process, wherein the back plate main body 11 is of a planar sheet structure, and the frame 12 can be formed by extrusion, so that the manufacturing difficulty of the back plate 1 is reduced, and the appearance design of the back plate 1 is facilitated; in addition, the back plate 1 is formed by detachably connecting the back plate main body 11 and the frame 12, so that the overall strength of the back plate 1 is improved, and the requirement of a large-size display device can be met. According to the display device provided by the embodiment of the invention, the backboard 1 is divided into the backboard main body 11 and the frame 12, the backboard 1 is not required to be manufactured by adopting the existing stamping process, and other process methods with lower difficulty can be adopted to manufacture the backboard 1, for example, the frame 12 is formed by extrusion, meanwhile, as the frame 12 is separated from the backboard main body 11, the frame 12 and the backboard main body 11 can be processed separately, so that the backboard 1 can be conveniently designed in appearance and shape, particularly the frame 12 with a complicated structure can be provided, the outer side surface of the frame 12 can be designed with different inclination angles and is presented on the outer surface of the display device in an arc state, and the appearance of the display device is more fashionable and beautiful.

It should be noted that the extrusion molding only provides a relatively simple and low-cost processing method, and does not limit the protection scope of the embodiment of the present invention, and other processing methods may be adopted.

Referring to fig. 12, 15, and 16, the display device according to the embodiment of the present invention at least includes a back plate 1, a light source, a reflective sheet, a diffusion plate 6, an optical film 8, a middle frame 5, and a display panel 9, which are sequentially arranged in a thickness direction of the display device. The light sources are more because the current user has higher requirements on brightness/color gamut/number of divisions, and when the light sources are fixed on the back plate 1 in the form of light bar plates, the light bar plates are also more. Specifically, be provided with on the light slat board and walk line terminal 211, the light slat board is connected with the light slat board drive module electricity on the backplate 1 through walking line terminal 211, and light slat board drive module is used for carrying out drive control to the light slat board, is used for controlling the bright or going out of LED lamp promptly. At this moment, more light slat leads to the circuit between light slat and the light slat drive module to walk the line quantity more, cause the light slat drive module area at 1 back of backplate great, in addition power strip on backplate 1, function boards such as main control board, it is great to make the function boards such as drive plate at 1 back of backplate occupy backplate 1 area when overall arrangement, generally more than 60% ~ 70%, lead to this partial backplate 1 region directly to expose as the outward appearance face, simultaneously because can regard as regional proportion undersize and pleasing to the eye of outward appearance, therefore, in order to hide unattractive backplate 1 and walk the line, generally directly wrap up whole backplate 1 with big backshell 10 mode directly, and then lead to the display device whole thick, can't realize slim display device.

In view of the above problems, referring to fig. 13, 14, and 15, a plurality of light sources in an embodiment of the present invention are fixed between a backplane 1 and a reflector plate in a form of a lamp panel 2, specifically, a first surface of the lamp panel 2 is provided with LED lamps arranged in an array, a second surface of the lamp panel 2 is provided with routing terminals 211 of the LED lamps, the LED lamps are electrically connected to the routing terminals 211, the routing terminals 211 are used for external electrical connection, and the first surface and the second surface are two opposite surfaces of the lamp panel 2. The backboard 1 is positioned on the second surface side of the lamp panel 2, an avoiding structure 111 is arranged on the backboard main body 11 corresponding to the wiring terminal 211, and the wiring terminal 211 is positioned in the avoiding structure 111; or, the first surface of the lamp panel 2 is provided with the LED lamps arranged in an array, the second surface of the lamp panel 2 is provided with the wiring terminals 211 and the lamp panel driving module 212 of the LED lamps, the LED lamps are electrically connected with the wiring terminals 211 and the lamp panel driving module 212, and the wiring terminals 211 are used for external electrical connection, wherein the first surface and the second surface are two opposite surfaces of the lamp panel 2; the backplane 1 is located on the second surface side of the lamp panel 2, an avoiding structure 111 is arranged on the backplane main body 11 corresponding to the routing terminal 211 and the lamp panel driving module 212, and the routing terminal 211 and the lamp panel driving module 212 are located in the avoiding structure 111. In this case, the routing terminal 211 and/or the lamp panel driving module 212 are/is arranged on the second surface of the lamp panel 2 and are accommodated in the avoiding structure 111 of the backplane 1, so that the LED lamp is integrated with the routing terminal 211 and/or the lamp panel driving module 212, the thickness of the display device is reduced by the arrangement of the avoiding structure 111, and meanwhile, the lamp panel driving module 212 on the backplane 1 is eliminated by the integrated structure, so that the number of circuit routing and function boards (controlling the driving modules of the lamp panels 2, connecting the lamp panels 2 with the power supply board) on the backplane 1 can be reduced, the area ratio of the function boards on the backplane 1 can be reduced, and the appearance area of the backplane 1 can be increased; in addition, the backboard 1 is formed by detachably connecting the backboard main body 11 and the frame 12, so that the overall strength of the backboard 1 is high, and the requirement of a large-size display device can be met. As described above, the rear plate 1 can be used as the rear case 10, and the rear case 10 does not need to be covered outside the rear plate 1, so that the thickness of the display device can be greatly reduced, and the display device can be thinned.

In order to effectively improve the contrast of the image displayed by the display device, referring to fig. 13, 14 and 15, the lamp panel 2 is formed by splicing a plurality of sub-lamp panels 21, and the brightness of the plurality of light sources in each sub-lamp panel 21 can be controlled by a control circuit. In this case, when the brightness of the image at the position corresponding to a certain sub-lamp panel 21 among the sub-lamp panels 21 is high, the brightness of the plurality of light sources in the sub-lamp panel 21 is increased by the control circuit; on the contrary, when the brightness of the image at the position corresponding to one of the sub lamp panels 21 is low, the brightness of the plurality of light sources in the sub lamp panel 21 is reduced through the control circuit, and the contrast of the image displayed by the display device can be effectively improved. Wherein, the contrast ratio of the display device adopting the whole lamp panel 2 to control all the light sources can reach 1000: tests show that the lamp panel 2 formed by splicing a plurality of sub lamp panels 21 is adopted in the embodiment of the invention, and the contrast of the display device can reach 10000: 1, or even higher.

Referring to fig. 9 and 12, the bezel 12 includes a mounting portion 121 for connecting and fixing the middle frame 5, a fixing portion 122 is formed at a bottom end of the mounting portion 121 extending in a direction of the backplate main body 11, and the fixing portion 122 is fixedly connected to the backplate main body 11. With installation department 121 direct and backplate main part 11 fixed connection, adopt to extend to be formed with fixed part 122 and backplate main part 11 fixed connection, make backplate main part 11 and frame 12 fixed connection's part and frame 12 and the partial phase separation of center 5 fixed connection, fixed part 122 and backplate main part 11 fixed connection can not produce the interference to installation department 121 and center 5 fixed connection, make the fixed connection's that backplate main part 11 and frame 12 can adopt mode more diversified, and at fixed connection's in-process, fixed part 122 and backplate main part 11 can carry out fixed connection's region great, the operation of being convenient for. Since the fixing portion 122 and the back plate body 11 are fixedly connected by the screw connection method without additional connection structure, and the connection reliability is high, and the connected members are not easily separated from each other, the back plate body 11 and the fixing portion 122 are usually connected by the screw connection method. Specifically, the screws penetrate through the back plate body 11 from the side of the back plate body 11 close to the middle frame 5 to be fastened on the fixing portions 122, so that the screws are prevented from being exposed on the appearance surface of the back plate 1, and the attractiveness of the display device is affected.

Further, in order to facilitate the assembly and disassembly of the bezel 12 and the backplate main body 11, referring to fig. 9 and 10, the bezel 12 includes an upper frame 123, a lower frame 124, a left frame 125 and a right frame 126; the upper frame 123 is fixedly connected to the backboard body 11 at the upper side of the backboard body 11, the lower frame 124 is fixedly connected to the backboard body 11 at the lower side of the backboard body 11, the left frame 125 is fixedly connected to the backboard body 11 at the left side of the backboard body 11, and the right frame 126 is fixedly connected to the backboard body 11 at the right side of the backboard body 11, and the connection manner may be the above-mentioned screw connection, at this time, the structures of the upper frame 123, the lower frame 124, the left frame 125, and the right frame 126 are similar, and fig. 11 takes the left frame 125 as an example. Based on this, the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 can be extruded and molded separately, and all present a strip-shaped structure, which is convenient for extrusion and molding; in addition, the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are fixedly connected with the backboard main body 11 at the corresponding side of the backboard main body 11, so that the installation and the disassembly are convenient, and when the frame 12 at one side of the backboard main body 11 is damaged, only the frame 12 at the corresponding side needs to be replaced, thereby reducing the maintenance cost. As can be seen from the above, the assembling sequence of the back plate 1 of the display device of the embodiment of the invention is as follows: the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are respectively extruded and molded, and then the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are respectively screwed with the backboard body 11 to obtain the backboard 1, so that the manufacturing difficulty is reduced, and the maintenance cost is low.

In order to simplify the installation process of the frame 12 and the backboard main body 11 and increase the connection reliability of the frame 12 and the backboard main body 11, referring to fig. 10, a first clamping groove 1231 is arranged at one end, close to the left frame 125, of the fixing portion 122 of the upper frame 123, a first clamping plate 1251 is arranged at one end, close to the upper frame 123, of the fixing portion 122 of the left frame 125, the first clamping plate 1251 is embedded into the first clamping groove 1231, and a screw penetrates through the backboard main body 11 and the first clamping plate 1251 and is fastened to the bottom wall of the first clamping groove 1231; or, a first clamping groove 1231 is arranged at one end, close to the upper frame 123, of the fixing portion 122 of the left frame 125, a first clamping plate 1251 is arranged at one end, close to the left frame 125, of the fixing portion 122 of the upper frame 123, the first clamping plate 1251 is embedded in the first clamping groove 1231, and a screw passes through the backboard main body 11 and the first clamping plate 1251 and is fastened to the bottom wall of the first clamping groove 1231. At this time, in the assembly process of the back panel 1, firstly, the screwing of the upper frame 123 and the back panel main body 11 and the screwing of the left frame 125 and the back panel main body 11 are simplified into the integrated screwing of the upper frame 123, the left frame 125 and the back panel main body 11, so that the number of times of screwing is reduced, and the installation process is simplified; secondly, before carrying out the spiro union with upper frame 123, left frame 125, backplate main part 11, upper frame 123 and left frame 125 pass through the cooperation of first cardboard 1251 and first draw-in groove 1231 for both form preliminary fixed, the reliability of being connected between upper frame 123 and left frame 125 and backplate main part 11 has not only been strengthened, and be convenient for follow-up utilizing upper frame 123 and left frame 125 to fix a position backplate main part 11, and then be favorable to going on smoothly of spiro union process, thereby reduce the operation degree of difficulty of spiro union process, shorten backplate main part 11 and frame 12's equipment time.

Similarly, referring to fig. 10, a second locking groove 1232 is provided at one end of the fixing portion 122 of the upper frame 123 close to the right frame 126, a second locking plate 1261 is provided at one end of the fixing portion 122 of the right frame 126 close to the upper frame 123, the second locking plate 1261 is embedded in the second locking groove 1232, and a screw passes through the backboard main body 11 and the second locking plate 1261 and is fastened to the bottom wall of the second locking groove 1232; or, a second locking groove 1232 is provided at one end of the fixing portion 122 of the right frame 126 close to the upper frame 123, a second locking plate 1261 is provided at one end of the fixing portion 122 of the upper frame 123 close to the right frame 126, the second locking plate 1261 is embedded in the second locking groove 1232, and a screw passes through the back plate main body 11 and the second locking plate 1261 and is fastened to the bottom wall of the second locking groove 1232. At this time, in the assembly process of the back panel 1, firstly, the screwing of the upper frame 123 and the back panel main body 11 and the screwing of the right frame 126 and the back panel main body 11 are simplified into the integral screwing of the upper frame 123, the right frame 126 and the back panel main body 11, so that the number of times of screwing is reduced, and the installation process is simplified; secondly, before carrying out the spiro union with upper frame 123, right frame 126, backplate main part 11, upper frame 123 and right frame 126 pass through the cooperation of second cardboard 1261 and second draw-in groove 1232 for both form preliminary fixed, the reliability of being connected between upper frame 123 and right frame 126 and backplate main part 11 has not only been strengthened, and be convenient for follow-up utilizing upper frame 123 and right frame 126 to fix a position backplate main part 11, and then be favorable to going on smoothly of spiro union process, thereby reduce the operation degree of difficulty of spiro union process, shorten backplate main part 11 and frame 12's equipment time.

When the backboard 1 is used for a large-size display device, in order to further ensure that the strength of the backboard 1 is sufficient to support the large-size display device, referring to fig. 17, a reinforcing rib 112 is provided on the surface of the backboard main body 11 away from the display panel 9, and correspondingly, an avoiding notch is provided on the fixing portion 122 of the frame 12 corresponding to the reinforcing rib 112, so that the strength of the backboard 1 can be effectively improved, and the backboard 1 can be prevented from being deformed or even broken when used for the large-size display device. Specifically, the plurality of ribs 112 may be disposed in parallel on the surface of the back plate main body 11 away from the display panel 9, or may be disposed in a grid shape on the surface of the back plate main body 11 away from the display panel 9, and the number of ribs 112 and the distribution on the surface of the back plate main body 11 away from the display panel 9 may be determined according to actual situations.

The fixing connection mode between the middle frame 5 and the side frame 12 is not exclusive, for example, referring to fig. 16 and 18, an elastic sheet 13 is installed on the installation portion 121, a groove is formed on one side of the middle frame 5 close to the back plate 1, and the elastic sheet 13 is embedded into the groove, so that the middle frame 5 is clamped on the installation portion 121. It should be understood that the clamping is convenient for mounting and dismounting the middle frame 5 compared with other connection methods, such as screwing, and no tool is needed in the mounting and dismounting processes. In addition, an independent elastic sheet 13 structure is adopted, when clamping is failed, the corresponding frame 12 or the middle frame 5 is not required to be replaced usually, only the elastic sheet 13 is required to be replaced, and the maintenance cost is low.

The elastic pieces 13 are generally uniformly distributed on the left frame 125, the upper frame 123 and the right frame 126, and the left frame 125, the upper frame 123 and the right frame 126 are respectively clamped with the corresponding sides of the middle frame 5. Wherein, the side of the middle frame 5 corresponding to the lower frame 124 is provided with a plurality of convex columns with hooks, the lower frame 124 is correspondingly provided with bayonets, and the hooks penetrate through the bayonets to fixedly connect the middle frame 5 and the lower frame 124. In this case, the middle frame 5 and the side frame 12 are fixedly connected in two clamping modes, so that the connection reliability is improved.

Referring to fig. 18 and 19, the elastic sheet 13 includes a top plate 131, and a first side plate 132 and a second side plate 133 bent at two opposite ends of the top plate 131, the first side plate 132 and the second side plate 133 are located at the same side of the top plate 131 and fixedly connected to the mounting portion 121, two sides of a bent portion of the second side plate 133 and the top plate 131 extend in a first direction to form an elastic hook 134, and the elastic hook 134 is engaged with the first side plate 132 and is clamped into the groove. The first direction is located between an extending direction of an end of the top plate 131 far from the first side plate 132 and an extending direction of a tail end of the second side plate 133. When above-mentioned joint of center 5 and frame 12, at first, arrange the recess of center 5 directly over shell fragment 13, then move down and arrange the roof 131 of shell fragment 13 in the recess, press at last and make elasticity trip 134 to contract to the inboard until whole shell fragment 13 arranges the recess in, the installation is very simple, labour saving and time saving. Under the action of the elastic restoring force of the elastic hook 134, the elastic sheet 13 is tightly clamped in the groove, so that the connection between the frame 12 and the middle frame 5 is ensured to have higher reliability.

Specifically, referring to fig. 20 and 21, the first side plate 132 and the second side plate 133 are fixedly connected to the mounting portion 121, a snap 135 is cut inward from each of the first side plate 132 and the second side plate 133, an engaging groove 1211 is formed in the mounting portion 121 corresponding to the snap 135, and the snap 135 extends into the engaging groove 1211 to allow the first side plate 132 and the second side plate 133 to be snapped to the mounting portion 121.

In some embodiments, referring to fig. 12 and 16, the reflector sheet is a three-dimensional reflector sheet 3, the three-dimensional display sheet comprises a plurality of cavities arranged in an array, each cavity comprises a bottom surface and a side surface, the light sources are positioned on the bottom surfaces of the cavities, the side surfaces of adjacent cavities form prisms for spacing the adjacent cavities, and the top of each prism supports a diffuser plate 6. At this time, the contrast of the display device can reach 50000: 1, and further realizing a better display effect. However, when the three-dimensional reflection sheet 3 is used, the light emitted from the light source hardly reaches the top of the prism, and a checkerboard-like dark shadow appears in the image on the display panel 9, which significantly affects the display effect of the image.

In order to solve the problem that the image on the display panel 9 has a dark shadow, a reflecting film 4 is arranged between the three-dimensional reflecting sheet 3 and the diffusion plate 6, and the surface of the reflecting film 4 close to the light source is contacted with the top of the prism; the reflecting film 4 is used for reflecting the first incident light and transmitting the second incident light; wherein, the first incident light is emitted from the light source and enters the reflective film 4 through the diffuser 6 at a first angle; the second incident light is the light emitted by the light source and is incident on the reflective film 4 at a second angle; the first angle is greater than or equal to a predetermined angle threshold and the second angle is less than the predetermined angle threshold. At this time, the top position of the prism can be covered by the reflective film 4 contacting with the top of the prism, so that the top position of the prism can reflect light emitted by the light source through the reflective film 4, and further, a shadow existing at the top position of the prism of the three-dimensional reflective sheet 3 in an image on the display panel 9 is eliminated, and the display effect of the image is improved. In a specific implementation, the thickness of the reflective film 4 may be set such that the reflective film 4 satisfies the above-described reflection-transmission condition.

Referring to fig. 12, quantum dot film 7 may be further disposed on the diffusion plate 6 on the side away from the light source, so that the color of the image displayed by the display device is closer to natural light and the color rendering property is more excellent. The quantum dot film 7 is used to generate excitation light (after light emitted by the light source enters the quantum reflective film 4, excitation light excited by the quantum reflective film 4, for example, when the light source is a blue light source, red light and green light are excited on the quantum dot film 7), the excitation light and the light emitted by the light source can be mixed into white light, and at this time, the reflector is also used to reflect the excitation light. Specifically, when the light source adopts a blue light source, the reflection film 4 adopts a blue-transmitting red-green-returning film 41, the quantum dot film 7 is used for exciting red light and green light, at the moment, the blue-transmitting red-green-returning film 41 totally reflects the red light and the green light incident on the surface of the blue-transmitting red-green-returning film 41, and simultaneously, the blue-transmitting red-green-returning film 41 reflects the blue light incident on the surface of the reflection film 4 at a first angle and transmits the blue light incident on the surface of the reflection film 4 at a second angle, so that the brightness can be improved, and the light efficiency can be improved.

The back plate 1 of the display device according to the embodiment of the present invention is further provided with a hanging lug 14 for mounting the optical film 8, that is, the mounting portion 121 is provided with a hanging lug 14 for hanging the optical film 8, the hanging lug 14 includes a fixing base 141 and a protrusion 142 arranged on the fixing base 141, and the fixing base 141 is fixedly connected with the mounting portion 121. Specifically, referring to fig. 12, 22 and 23, the fixing base 141 is screwed to the fixing base 141 of the mounting portion 121, the optical film 8 is provided with a hanging hole corresponding to the protrusion 142 on the hanging lug 14, and the protrusion 142 extends into the hanging hole to hang the optical film 8 on the mounting portion 121. Similarly to the blue-permeable red/green film 41, the quantum dot film 7 and the diffusion plate 6 may be hung on the hanger 14 together with the optical film 8 and sandwiched therebetween. At this moment, the hanging lug 14 of the optical diaphragm 8 is utilized to hang the blue-permeable red-green returning film 41, and only the blue-permeable red-green returning film 41 is correspondingly provided with a hanging hole, so that other fixing structures are not needed, the structure is simple, and the implementation is convenient.

It should be understood that the positions of the hanging lugs 14 on the mounting portion 121 are not exclusive, for example, a plurality of hanging lugs 14 are arranged on the upper frame 123, a plurality of hanging lugs 14 are arranged on the lower frame 124, and the plurality of hanging lugs 14 on the upper frame 123 are arranged in one-to-one correspondence with the plurality of hanging lugs 14 on the lower frame 124; for another example, the plurality of hangers 14 are provided on the left frame 125, the plurality of hangers 14 are provided on the right frame 126, and the plurality of hangers 14 on the left frame 125 and the plurality of hangers 14 on the right frame 126 are provided in one-to-one correspondence. Wherein, the frame 12 is equipped with two hangers 14 corresponding one side that is equipped with hanger 14 all at least, and two hangers 14 distribute at the both ends of this side to guarantee to articulate the effect better, guarantee the roughness after the diaphragm articulates. Specifically, the number of the hanging lugs 14 can be adjusted accordingly according to the size of the display device, for example, increased or decreased, so as to stably and smoothly hang the membrane on the mounting portion 121.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A display device, comprising:

a home screen for displaying a first image;

and the auxiliary screen is fixedly connected to the bottom end of the main screen and is used for displaying a second image and supporting the display device.

2. The display device according to claim 1, wherein the sub-screen comprises a housing, a bottom wall of the housing is attached to the ground to support the display device on the ground.

3. The display device according to claim 2, wherein an end of the bottom wall of the housing on the display image side of the display device extends in a direction horizontally facing away from a surface of the display device on which an image is displayed, so as to prevent the display device from tilting toward the display image side of the display device.

4. The display device according to claim 2, further comprising a support mechanism, wherein the support mechanism is disposed on a surface of the display device away from the display image and is inclined in a vertical direction, and a bottom end of the support mechanism is located at the same level as the bottom wall of the housing so as to prevent the display device from falling down to a side of the display device away from the display image.

5. The display device according to claim 4, wherein the support mechanism includes a first fixing member fixedly connected to a surface of the main panel remote from the display image, and a second fixing member fixedly connected to a top end of the sub-panel.

6. The display device according to claim 5, wherein the supporting mechanism further comprises a supporting body, the first fixing member is integrally formed with the supporting body, the first fixing member is located at an end of the supporting body close to the main screen, and the second fixing member is detachably connected to the supporting body.

7. The display device according to claim 1, wherein metal adapters are arranged on the left side and the right side of the joint of the main screen and the auxiliary screen, and the main screen and the auxiliary screen are fixedly connected through the metal adapters.

8. The display device of claim 7, wherein the metal interposer comprises:

the fixing plate is connected to the surface, far away from the display image, of the main screen;

the clamping column is connected to the top end of the auxiliary screen;

the clamping column is in threaded connection with the fixing plate.

9. The display device according to claim 1, wherein the main screen is rotatably connected to the sub screen.

10. The display device according to claim 9, further comprising:

the first rotating metal piece is a semicircular convex metal strip;

the second rotating metal piece is a metal strip with a semicircular concave part;

the first rotating metal piece is arranged at the bottom end of the main screen, the second rotating metal piece is arranged at the top end of the auxiliary screen, and the semicircular convex metal strip is clamped into the semicircular concave metal strip, so that the main screen and the auxiliary screen can be rotatably adjusted; or, the second rotate the metalwork install in the bottom of main screen, first rotate the metalwork install in the top of vice screen, the rectangular card of semi-circular bellied metal is gone into in the rectangular card of semi-circular sunken metal, so that main screen with the rotatable adjustment of vice screen.