CN211742549U - Display device - Google Patents

Abstract

The utility model discloses a display device relates to and shows technical field, and the preparation degree of difficulty of the backplate that not only reduces is convenient for carry out the appearance molding design to the backplate moreover for display device's outward appearance is fashion pleasing to the eye more. The display device comprises a backboard, wherein the backboard comprises a backboard main body and a frame, and the frame is detachably connected with the backboard main body around the backboard main body. The utility model discloses a be used for showing the image.

Description

a display device

technical field

The utility model relates to the technical field of display, in particular to a display device.

Background technique

With the development of science and technology, display devices are gradually popularized in the daily life of residents, and users have higher and higher requirements for display devices. With the increasing demands of users to process multiple tasks at the same time, a display device including only one screen can no longer meet the demands of users.

The current display device, such as LCD TV, is generally a screen, which is placed on the user's TV cabinet through the installation base, and the back plate adopts the integrated bending method of the bottom plate and the side plate of the stamping process, which is not conducive to the appearance of the entire display device. And the production process is difficult. In addition, when using the LCD TV, the user also needs to prepare a box structure such as a TV cabinet to support the LCD TV.

Utility model content

The embodiment of the present invention provides a display device, which not only reduces the manufacturing difficulty of the back plate, but also facilitates the appearance design of the back plate, so that the appearance of the display device is more fashionable and beautiful.

In order to achieve the above object, the embodiment of the present utility model adopts the following technical solutions:

A display device includes a backplane, the backplane includes a backplane main body and a frame, and around the backplane main body, the frame is detachably connected to the backplane main body.

The display device provided by the embodiment of the present invention includes a backplane, the backplane includes a backplane main body and a frame, and around the backplane main body, the frame and the backplane main body are detachably connected. Based on this, it is not necessary to adopt a stamping process to form integrally in the production process of the above-mentioned backplane, wherein the main body of the backplane is a flat sheet-like structure, and the frame can be extruded, which reduces the difficulty of manufacturing the backplane and facilitates the formation of the backplane. Carry out appearance design, for example, the outer side of the frame can be designed with different inclination angles, so that the outer side of the frame is in an arc-shaped state, thereby making the appearance of the display device more fashionable and beautiful; The detachable connection structure improves the overall strength of the backplane and can meet the requirements of large-sized display devices. Compared with the prior art, in the display device provided by the embodiment of the present invention, the backplane is divided into a backplane main body and a frame, and there is no need to use the existing stamping process to manufacture the backplane, and other process methods with lower difficulty can be used. For example, the frame is formed by extrusion. At the same time, since the frame is separated from the main body of the back plate, the frame and the main body of the back plate can be processed separately, which is convenient for the appearance design of the back plate, especially the frame with more complex structure. The outer side of the frame can be designed with different inclination angles to be presented on the outer surface of the display device in an arc-shaped state, so that the appearance of the display device is more fashionable and beautiful.

Description of drawings

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

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

3 is a schematic structural diagram of a side of an installation support mechanism of a display device according to an embodiment of the present invention;

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

5 is a perspective view of a side of an installation support mechanism of a display device according to an embodiment of the present invention;

6 is a partial enlarged view of a metal adapter of a display device according to an embodiment of the present invention;

7 is a partial enlarged view of the rotational connection between the main screen and the sub-screen of the display device according to the embodiment of the present invention;

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

9 is a cross-sectional view of a backplane of a display device according to an embodiment of the present invention;

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

11 is a schematic structural diagram of a left frame of a back panel of a display device according to an embodiment of the present invention;

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

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

14 is a schematic structural diagram of a sub-light board of a display device according to an embodiment of the present invention;

15 is a cross-sectional view of a sub-light board of a display device according to an embodiment of the present invention;

16 is a cross-sectional view of an internal structure of a display device according to an embodiment of the present invention;

17 is a backside view of a backplane of a display device according to an embodiment of the present invention;

FIG. 18 is a partial enlarged view of the place where the middle frame and the mounting part of the display device according to the embodiment of the present invention are clamped by elastic sheets;

19 is a schematic structural diagram of an elastic sheet of a display device according to an embodiment of the present invention;

FIG. 20 is one of the structural schematic diagrams of fixing the elastic sheet and the mounting portion of the display device according to the embodiment of the present invention;

FIG. 21 is the second schematic diagram of the structure of the display device of the embodiment of the present invention, in which the elastic sheet and the mounting portion are fixed;

FIG. 22 is a schematic structural diagram of fixing a mounting ear and a mounting portion of a display device according to an embodiment of the present invention;

23 is a schematic structural diagram of a mounting ear of a display device according to an embodiment of the present invention.

Reference number:

100-main screen; 200-secondary screen; 210-shell; 300-support mechanism; 310-first fixing part; 320-second fixing part; 330-support body; 400-metal adapter; 410-fixing plate; 420-clamping column; 430-shielding plate; 500-first rotating metal part; 600-second rotating metal part; 1-back plate; 11-back plate main body; 111-avoidance structure; 112-reinforcing rib; 12-frame ; 121 - mounting part; 1211 - engaging slot; 122 - fixing part; 123 - upper frame; 1231 - first card slot; 1232 - second card slot; 124 - lower frame; 125 - left frame; 1251 - first Card plate; 126-right frame; 1261-second card plate; 13-shrapnel; 131-top plate; 132-first side plate; 133-second side plate; 134-elastic hook; 135-buckle; 14- Mounting ear; 141-fixed base; 142-protrusion; 2-light board; 21-sub-light board; 211-cable terminal; 212-light board drive module; 3-stereo reflective sheet; 4-reflection film; 41- Translucent blue-to-red-green film; 5-middle frame; 6-diffusion plate; 7-quantum dot film; 8-optical film; 9-display panel; 10-back shell.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating Or imply that the referred device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

The terms "first" and "second" are only used for descriptive purposes, and should not 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 expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1 and FIG. 2, the display device includes: a main screen 100, the main screen 100 is used for displaying a first image; a sub-screen 200, the sub-screen 200 is fixedly connected to the bottom of the main screen 100, and the sub-screen 200 is used for displaying the second image and supporting display device.

The display device according to the embodiment of the present invention, referring to FIG. 1 and FIG. 2 , 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 the bottom of the main screen 100 , and the sub-screen 200 Used to display the second image and support the display device. Based on this, the above-mentioned display device can control the display height of the main screen 100 through the structural design of the secondary screen 200, and ensure that the display device can be stably placed on a flat surface. Therefore, when the user uses the display device, there is no need to prepare a TV cabinet, etc. Box structure. In addition, the above-mentioned secondary screen 200 can play an auxiliary display role. For example, when using the main screen 100 to watch Internet TV, the secondary screen 200 can be used to browse program introductions of other channels or perform operations such as inquiring information on the Internet; the above-mentioned secondary screen 200 can also be used. Display in combination with the main screen 100 to form a larger display screen. The display device provided by the embodiment of the present invention realizes the interactive display of multiple screens through the combination of the main screen 100 and the secondary screen 200, and increases the space of the operable platform; at the same time, through the structural design of the secondary screen 200, the main screen can be controlled The display height is 100 and supports the entire display device, which solves the problem that the display device needs to be supported by a box such as a TV cabinet.

It should be noted that the display device of the embodiment of the present invention further includes a first audio module and a second audio module. The first audio module is arranged in the main screen 100 and is used for collecting and playing audio data of the main screen 100. The second audio module It is set in the secondary screen 200 and used to collect and play the audio data of the secondary screen 200 . The second audio module can run independently, that is, when the main screen 100 is not working and the sub screen 200 does not display images, the sub screen 200 can also be used as a separate smart speaker.

The structure of the above-mentioned secondary screen 200 supporting the entire display device is not unique. In some embodiments, referring to FIG. 1 and FIG. 2 , the secondary screen 200 includes a casing 210 , and the bottom wall of the casing 210 is attached to the ground to support The display unit is 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 design a supporting structure, such as a mounting base, etc., so the space area below the main screen 100 is fully utilized, so that the display area of the sub screen 200 is larger, 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 housing 210 located on the display image side of the display device extends in a direction that faces away from the surface on which the display device displays the image, so as to prevent the display device from moving toward the display image. The display image side of the display device is tilted. 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 becomes larger, which can effectively prevent the display device from tipping to the display image side of the display device, thereby increasing the placement of the display device on the ground. on the stability. In addition, the extending portion of the bottom wall of the casing 210 located on the display image side of the display device gradually narrows toward the middle, and the thickness gradually becomes smaller, which not only saves materials, but also is more beautiful.

It should be understood that when the above-mentioned display device is placed against the wall, the surface of the display device away from the display image is backed against the wall, and there is no need to consider that the display device falls to the side of the display device away from the display image. However, in the process of using the display device, it often occurs that the display device is not placed against the wall. Therefore, in order to prevent the display device from tipping over to the side of the display device away from the displayed image, and further increase the stability of the display device placed on the ground, as shown in FIG. 2 and FIG. 3 , the display device further includes a support mechanism 300 . The support mechanism 300 is inclined in the vertical direction on the surface of the display device away from the displayed image, and the bottom end of the support mechanism 300 is located at the same level as the bottom wall of the housing 210, so as to prevent the display device from tipping to the side of the display device away from the displayed image . In this case, the display device is placed on the ground, and the bottom wall of the casing 210 and the bottom end of the support mechanism 300 are both in contact with the ground, which can effectively prevent the display device from tipping over to the side of the display device away from the displayed image. This further increases the stability of the display device placed on the ground.

The above-mentioned support mechanism 300 can be fixedly connected to the surface of the main screen 100 away from the display image, or can be fixedly connected to the surface of the auxiliary screen 200 away from the display image, and can be fixedly connected to the main screen 100 away from the surface of the display image and the auxiliary screen 200. Secure the connection away from the surface on which the image is displayed. Preferably, the above-mentioned support structure is fixedly connected to the surface of the main screen 100 away from the display image and the surface of the auxiliary screen 200 away from the display image, which can also enhance the reliability of the connection between the main screen 100 and the auxiliary screen 200 . Specifically, referring to FIGS. 2 , 3 and 4 , the support 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 screen 100 away from the display screen, and the second fixing member 320 is fixedly connected to the top of the secondary screen 200 . Generally, the above-mentioned fixed connection adopts screw connection. Exemplarily, the first fixing member 310 is fastened to the surface of the main screen 100 away from the display screen by screws in the horizontal direction, and the second fixing member 320 is fixed by screws in the vertical direction. It is fastened to the top of the secondary screen 200, and fixed by the above-mentioned two screw structures, so that a stable triangular structure is formed between the supporting mechanism 300 and the main screen 100 and the secondary screen 200. The reliability of the connection between them is high, and the reliability of the connection between the main screen 100 and the sub-screen 200 is enhanced.

2 , 3 and 4 , the support mechanism 300 further includes a support body 330 . The support body 330 , the first fixing member 310 and the second fixing member 320 can be integrally formed. The supporting body 330 , the first fixing member 310 and the second fixing member 320 The fixing member 320 can also be fixedly connected in a detachable connection manner such as snap connection or screw connection. Wherein, since the first fixing member 310 can be formed at one end of the support body 330 and extend from the surface of the main screen 100 away from the display screen, the first fixing member 310 and the supporting body 330 are integrally formed to avoid the first fixing member 310 and the supporting body 330 being integrally formed. The installation process of the body 330, the processing process is simple, and it can be integrally formed by injection molding. The injection 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. other processing methods. The second fixing member 320 is located in the middle of the support body 330 , and it is not easy to be directly injection-molded with the support body 330 , so the second fixing member 320 is detachably connected to the support body 330 . As can be seen from the above, in the embodiment of the present invention, the first fixing member 310 and the supporting body 330 are integrally formed, and the first fixing member 310 is located at the end of the supporting body 330 close to the main screen 100 , and the second fixing member 320 and the supporting body 330 Detachable connection. Compared with other detachable connections, such as snap connection, the screw connection has high connection reliability, and the connected parts are not easily separated from each other. Therefore, the second fixing member 320 and the support body 330 are connected by a screw connection structure. Specifically, the second fixing member 320 includes a first fixing portion attached to the support body 330 and a second fixing portion attached to the top of the secondary screen 200 , and the first fixing portion and the support body 330 are fastened with a first screw Together, the second fixing part is fastened to the top end of the sub-screen 200 with the second screw.

It should be noted that a positioning structure is further provided between the first fixing portion and the support body 330, and the positioning structure includes a positioning column and a positioning groove, wherein one of the positioning column and the positioning groove is arranged on the first fixing portion, and the other arranged on the support body 330 . At this time, after the first fixing part and the support body 330 are positioned by the positioning structure, it is convenient to screw the first fixing part and the support body 330, and under the cooperation of the positioning structure, the first fixing part and the support body 330 are connected. High reliability.

The casing 210 of the main screen 100 and the casing 210 of the secondary screen 200 are usually made of plastic material. When the main screen 100 and the secondary screen 200 are directly connected and fixed through the casing 210 , due to the large weight of the main screen 100 , the casing 210 The connection is prone to deformation, which leads to the failure of the connection. Therefore, in order to avoid the occurrence of the above problems, as shown in FIG. 3 , FIG. 5 and FIG. 6 , metal adapters 400 are provided on the 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 pass through the metal The adapter 400 is fixedly connected. In this case, since the strength of metal is higher than that of plastic, the main screen 100 and the secondary screen 200 are fixedly connected by the metal adapter 400, which can effectively prevent the connection between the main screen 100 and the secondary screen 200 from being deformed. , to ensure the reliability of the connection; in addition, the metal adapters 400 are arranged on the left and right sides of the connection between the main screen 100 and the secondary screen 200 to facilitate the installation and removal of the main screen 100 and the secondary screen 200 .

In some embodiments, the above-mentioned metal adapter 400 includes a fixing plate 410 and a clamping column 420. The fixing plate 410 is connected to the surface of the main screen 100 away from the display image, and the clamping column 420 is connected to the top of the secondary screen 200; the fixing plate 410 corresponds to The clamping column 420 is provided with an avoidance socket, and the clamping column 420 extends into the avoidance socket fixing plate 410 for screwing. Specifically, as shown in FIG. 5 and FIG. 6 , the lower side of the fixing plate 410 is provided with an escape socket, and the clamping column 420 and the fixing plate 410 are correspondingly provided with two screwing structures. At this time, the clamping post 420 is first extended into the avoidance socket, the screw holes on the clamping post 420 correspond to the screw holes on the fixing plate 410 , and then the clamping post 420 and the fixing plate 410 are screwed together with screws.

It should be noted that a shielding plate 430 is also provided 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 More fashionable and beautiful.

It should be understood that the user's eyes and the main screen 100 form a slight downward gaze angle, which can relax the neck muscles. Based on this, in order to provide a better user experience to the user, referring to FIG. 7 , the main screen 100 and the sub-screen 200 are rotatably connected. In this case, the user can adjust the degree of freedom of the main screen 100 relative to the secondary screen 200 to move back and forth according to personal needs, so as to adjust the main screen 100 to an optimal tilt angle for viewing.

Specifically, referring to FIG. 7 , the display device further includes a first rotating metal piece 500 and a second rotating metal piece 600 . The first rotating metal piece 500 is a metal strip with a semicircular protrusion 142 ; the second rotating metal piece 600 is A semicircular recessed metal strip; wherein, the first rotating metal piece 500 and the second rotating metal piece 600 are respectively arranged on the main screen 100 and the secondary screen 200, including the following two situations: the first one, the first rotating metal piece The metal piece 500 is installed on the bottom end of the main screen 100, the second rotating metal piece 600 is installed on the top of the auxiliary screen 200, the metal strip of the semicircular protrusion 142 is clamped into the metal strip of the semicircular depression, so that the main screen 100 It can be rotated and adjusted with the secondary screen 200; in the second type, the second rotating metal piece 600 is installed on the bottom end of the main screen 100, the first rotating metal piece 500 is installed on the top of the auxiliary screen 200, and the metal strip of the semicircular protrusion 142 It is snapped into the semicircular recessed metal strip, so that the main screen 100 and the sub-screen 200 can be rotated and adjusted. In this way, the metal strip of the semi-circular protrusion 142 extends into the metal strip of the semi-circular depression, and the user can move the main screen 100 back and forth according to the personal viewing effect, so as to adjust the main screen 100 to the best viewing. The inclination angle is high, and the user experience is high.

It should be noted that the main screen 100 and the secondary screen 200 have similar internal structures, and the main screen 100 is taken as an example for detailed description below. The internal structure of the main screen 100 is described by the internal structure of the 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 the convenience of description, the display device mentioned in the following only describes the internal structure of a single-screen display device, and is not limited to a single-screen display device.

8 and 9 , the display device includes a backplane 1 , and the backplane 1 includes a backplane body 11 and a frame 12 . Around the backboard body 11 , the frame 12 is detachably connected to the backboard body 11 .

8 and 9 , the display device according to the embodiment of the present invention includes a backplane 1 . The backplane 1 includes a backplane main body 11 and a frame 12 . Around the backplane main body 11 , the frame 12 and the backplane main body 11 are detachable. connect. Based on this, in the production process of the above-mentioned backplane 1, it is not necessary to adopt a stamping process to form integrally, wherein, the backplane main body 11 is a planar sheet-like structure, and the frame 12 can be formed by extrusion, so that the manufacturing difficulty of the backplane 1 is reduced. It is convenient to design the appearance of the backplane 1. For example, the outer side of the frame 12 can be designed with different inclination angles, so that the outer side of the frame 12 is in an arc-shaped state, thereby making the appearance of the display device more fashionable and beautiful; The board 1 is constituted by the detachable connection between the backboard main body 11 and the frame 12 , which improves the overall strength of the backboard 1 and can meet the requirements of large-sized display devices. Compared with the prior art, in the display device provided by the embodiment of the present invention, the backplane 1 is divided into the backplane main body 11 and the frame 12, and the existing stamping process is not required to manufacture the backplane 1, and the backplane 1 can be made with less difficulty. For example, the frame 12 is formed by extrusion. At the same time, since the frame 12 is separated from the main body 11 of the back plate, the frame 12 and the main body 11 of the back plate can be processed separately, which is convenient for the appearance of the back plate 1. For the shape design, especially the frame 12 with complex structure, the outer side of the frame 12 can be designed with different inclination angles to present on the outer surface of the display device in an arc state, making the appearance of the display device more fashionable and beautiful.

It should be noted that extrusion molding only provides a relatively simple and low-cost processing method, and does not limit the protection scope of the embodiments of the present invention, and of course other processing methods can also be used.

12, 15 and 16, the specific structure of the display device according to the embodiment of the present invention at least includes a back plate 1, a light source, a reflection sheet, a diffuser plate 6, an optical film 8, Middle frame 5 and display panel 9. Among them, due to the current user's high requirements on the indicators of brightness/color gamut/number of partitions, the number of the above-mentioned light sources is large. Also more. Specifically, the light strip board is provided with a wiring terminal 211, and the light strip board is electrically connected to the light strip board driving module on the backplane 1 through the wiring terminal 211, and the light strip board driving module is used for driving and controlling the light strip board. , which is used to control the on or off of the LED light. At this time, more light strip boards lead to a large number of circuit traces between the light strip board and the light strip board driving module, resulting in a larger area of the light strip board driving module on the back of the backplane 1. In addition, the backplane 1 The power board, main control board and other functional boards on the backplane 1 make the function boards such as the driver board on the back of the backplane 1 occupy a large area of the backplane 1, usually more than 60% to 70%, which leads to this part of the backplane 1 The area cannot be directly exposed as the appearance surface. At the same time, the proportion of the area that can be used as the appearance is too small and unsightly. Therefore, in order to cover the unsightly backplane 1 and the wiring, the large rear shell 10 is usually directly wrapped around the entire back. The panel 1, which in turn causes the overall thickness of the display device, makes it impossible to realize a thin display device.

13, 14 and 15, the plurality of light sources in the embodiment of the present invention are fixed between the back plate 1 and the reflector in the form of a lamp board 2. Specifically, the first light source of the lamp board 2 is The surface is provided with LED lights arranged in an array, and the second surface of the lamp board 2 is provided with a wiring terminal 211 of the LED light, the LED light and the wiring terminal 211 are electrically connected, and the wiring terminal 211 is 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 light board 2, and the backplane body 11 is provided with an escape structure 111 corresponding to the wiring terminal 211, and the wiring terminal 211 is located in the avoidance structure 111; The surface is provided with LED lights arranged in an array, and the second surface of the light board 2 is provided with a wiring terminal 211 of the LED light and a light board driving module 212 , and the LED light is electrically connected with the wiring terminal 211 and the light board driving module 212 , the wiring terminal 211 is used for external electrical connection, wherein the first surface and the second surface are opposite surfaces of the lamp board 2; The wiring terminal 211 and the lamp board driving module 212 are provided with an avoidance structure 111 , and the wiring terminal 211 and the light board driving module 212 are located in the avoidance structure 111 . In this case, the wiring terminal 211 and/or the lamp board driving module 212 are disposed on the second surface of the light board 2 and are accommodated in the avoidance structure 111 of the backplane 1, so that the LED lamp is connected to the wiring terminal 211 and/or the wiring terminal 211. Or the lamp panel driving module 212 is integrated, the setting of the avoidance structure 111 reduces the thickness of the display device, and the integrated structure cancels the lamp panel driving module 212 on the back panel 1, which can reduce the circuit wiring on the back panel 1. , the number of functional boards (controlling the driving modules of each light board 2, connecting the light boards 2 and the power board), thereby reducing the area ratio of the functional boards on the backplane 1, thereby increasing the appearance area of the backplane 1; In addition, the backplane 1 adopts the detachable connection between the backplane main body 11 and the frame 12 to form the overall strength of the backplane 1 is relatively high, which can meet the requirements of large-sized display devices. As can be seen from the above, the backplane 1 can be used as the rear case 10, and the backplane 1 does not need to be covered with the rear case 10, thereby greatly reducing the thickness of the display device and realizing the thinning of the display device.

In order to effectively improve the contrast of the image displayed by the display device, referring to FIG. 13 , FIG. 14 and FIG. 15 , the above-mentioned lamp panel 2 is formed by splicing a plurality of sub-lamp panels 21 , and the control circuit can control the multiple light sources in each sub-lamp panel 21 . The size of the brightness. In this case, when the brightness of the image corresponding to a certain sub-light board 21 in the plurality of sub-light boards 21 is high, the brightness of the plurality of light sources in the sub-light board 21 is increased through the control circuit; When the brightness of the image corresponding to a certain sub-light board 21 in the plurality of sub-light boards 21 is low, the brightness of the plurality of light sources in the sub-light board 21 can be reduced by the control circuit, thereby effectively improving the display image of the display device. contrast. Among them, the contrast ratio of the display device that uses an integral light board 2 to control all light sources can reach 1000:1. Tests show that the embodiment of the present invention uses a light board 2 formed by splicing a plurality of sub-light boards 21. On the premise, the contrast ratio of the display device can reach 10000:1, or even higher.

Referring to FIGS. 9 and 12 , the frame 12 includes a mounting portion 121 for connecting and fixing the middle frame 5 . The bottom end of the mounting portion 121 extends toward the backplane body 11 to form a mounting portion 122 . The mounting portion 122 is connected to the backplane body 11 . Fixed connection. The mounting part 121 is directly and fixedly connected to the backplane main body 11, and the fixed part 122 is extended and formed to be fixedly connected to the backplane main body 11, so that the part of the backplane main body 11 and the frame 12 that is fixedly connected is fixedly connected to the frame 12 and the middle frame 5. Parts are separated, and the fixed connection between the fixing portion 122 and the backplane body 11 will not interfere with the fixed connection between the mounting portion 121 and the middle frame 5, so that the fixed connection methods that can be adopted between the backplane body 11 and the frame 12 are more diverse. During the process of fixed connection, the area where the fixed portion 122 and the backplane main body 11 can be fixedly connected is relatively large, which is convenient for operation. In view of the fact that the fixing part 122 and the backplane main body 11 are fixedly connected by screwing, no additional connection structure is required, and the connection reliability is high, and the connected parts are not easily separated from each other, so the backplane main body is usually screwed. 11 and the fixing part 122 are connected together. Specifically, the screws are fastened to the fixing portion 122 through the backboard main body 11 from the side of the backboard main body 11 close to the middle frame 5 to avoid the screws being exposed on the appearance surface of the backboard 1 , thereby affecting the aesthetics of the display device.

Further, in order to facilitate the installation and disassembly of the frame 12 and the backplane body 11, referring to FIGS. 9 and 10, the frame 12 includes an upper frame 123, a lower frame 124, a left frame 125 and a right frame 126; wherein, the upper frame 123 is in the The upper side of the backplane main body 11 is fixedly connected to the backplane main body 11 , the lower frame 124 is fixedly connected to the backplane main body 11 at the lower side of the backplane main body 11 , and the left frame 125 is fixedly connected to the backplane main body 11 on the left side of the backplane main body 11 . Fixed connection, the right frame 126 is fixedly connected to the back panel main body 11 on the right side of the back panel main body 11, and the connection method can be the above-mentioned screw connection. The structure is 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 separately, and all have a strip-shaped structure, which is convenient for extrusion molding; and the right frame 126 are fixedly connected to the back panel main body 11 on the corresponding side of the back panel main body 11 one by one, which is not only convenient for installation and disassembly, but also needs to be replaced when the frame 12 on one side of the back panel main body 11 is damaged. The frame 12 should be on the side to reduce maintenance costs. It can be seen from the above that the assembly sequence of the back panel 1 of the display device according to the embodiment of the present invention is as follows: the upper frame 123 , the lower frame 124 , the left frame 125 and the right frame 126 are extruded respectively, and then the upper frame 123 and the lower frame 124 , the left frame 125 and the right frame 126 are respectively screwed with the back panel main body 11 to obtain the back panel 1 , the manufacturing difficulty is reduced, and the maintenance cost is low.

Among them, in order to simplify the installation process of the frame 12 and the backplane main body 11, and at the same time increase the reliability of the connection between the frame 12 and the backplane main body 11, referring to FIG. The card slot 1231, the end of the fixing part 122 of the left frame 125 close to the upper frame 123 is provided with a first card plate 1251, the first card plate 1251 is embedded in the first card slot 1231, and the screws pass through the back plate main body 11 and the first card plate 1251 be fastened to the bottom wall of the first card slot 1231; There is a first card board 1251 , the first card plate 1251 is embedded in the first card slot 1231 , and the screws are fastened to the bottom wall of the first card slot 1231 through the back plate main body 11 and the first card plate 1251 . At this time, in the assembling process of the above-mentioned backplane 1, first, the screw connection of the upper frame 123 and the backplane main body 11 and the screw connection of the left frame 125 and the backplane main body 11 are simplified as the upper frame 123, the left frame 125, the backplane The main body 11 is screwed together, which reduces the number of screw connections and simplifies the installation process; secondly, before screwing the upper frame 123, the left frame 125, and the backboard main body 11, the upper frame 123 and the left frame 125 pass through the first The cooperation of a card board 1251 and the first card slot 1231 makes the two form a preliminary fix, which not only strengthens the reliability of the connection between the upper frame 123 and the left frame 125 and the backplane main body 11, but also facilitates the subsequent use of the upper frame 123. Positioning the backboard main body 11 with the left frame 125 facilitates the smooth progress of the screwing process, thereby reducing the operational difficulty of the screwing process and shortening the assembly time of the backboard main body 11 and the frame 12 .

Similarly, referring to FIG. 10 , the end of the fixing portion 122 of the upper frame 123 close to the right frame 126 is provided with a second slot 1232 , and the end of the fixing portion 122 of the right frame 126 close to the upper frame 123 is provided with a second clamping plate 1261 . The two card boards 1261 are inserted into the second card slots 1232, and the screws pass through the backplane body 11 and the second card plates 1261 and are fastened to the bottom wall of the second card slots 1232; or, the fixing portion 122 of the right frame 126 is close to the upper frame 123 One end of the upper frame 123 is provided with a second card slot 1232, and one end of the fixing portion 122 of the upper frame 123 close to the right frame 126 is provided with a second card plate 1261. . The second card board 1261 is fastened to the bottom wall of the second card slot 1232 . At this time, in the above-mentioned assembly process of the backplane 1, first, the screw connection of the upper frame 123 and the backplane main body 11 and the screw connection of the right frame 126 and the backplane main body 11 are simplified as the upper frame 123, the right frame 126, the backplane The main body 11 is screwed together, which reduces the number of screw connections and simplifies the installation process; secondly, before screwing the upper frame 123, the right frame 126, and the back panel main body 11, the upper frame 123 and the right frame 126 pass through the first The cooperation of the second card board 1261 and the second card slot 1232 enables the two to form a preliminary fixation, which not only strengthens the reliability of the connection between the upper frame 123 and the right frame 126 and the backplane main body 11, but also facilitates the subsequent use of the upper frame 123 Positioning the backboard main body 11 with the right frame 126 facilitates the smooth screwing process, thereby reducing the operational difficulty of the screwing process and shortening the assembly time of the backboard main body 11 and the frame 12 .

When the above-mentioned backplane 1 is used for a large-size display device, in order to further ensure that the strength of the backplane 1 is sufficient to support the large-size display device, referring to FIG. Ribs 112, correspondingly, the fixing portion 122 of the frame 12 is provided with an avoidance notch corresponding to the reinforcing rib 112, which can effectively improve the strength of the backplane 1 to prevent the backplane 1 from being used for large-sized display devices. even broken. Specifically, the above-mentioned reinforcing ribs 112 can be a plurality of strips arranged in parallel on the surface of the backplane main body 11 away from the display panel 9 , or can be arranged in a grid shape on the surface of the backplane main body 11 away from the display panel 9 . The number of 112 and the distribution on the surface of the backplane body 11 away from the display panel 9 can be determined according to actual conditions.

The manner in which the above-mentioned middle frame 5 is fixedly connected to the above-mentioned frame 12 is not unique. By way of example, referring to FIGS. 16 and 18 , the above-mentioned mounting portion 121 is provided with an elastic sheet 13 , and the side of the above-mentioned middle frame 5 close to the back plate 1 is provided with an elastic sheet 13 . The elastic sheet 13 is inserted into the groove, so that the middle frame 5 is clamped on the mounting portion 121 . It should be understood that, compared with other connection methods, such as screw connection, clamping connection does not require tools during installation and removal, which facilitates installation and removal of the middle frame 5 . In addition, by adopting the structure of a separate elastic piece 13, when the clip connection fails, there is usually no need to replace the corresponding frame 12 or the middle frame 5, only the elastic piece 13 needs to be replaced, and the maintenance cost is low.

It should be noted that the above-mentioned elastic pieces 13 are usually evenly 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 to the sides of the corresponding middle frame 5 . The sides corresponding to the middle frame 5 and the lower frame 124 are provided with a plurality of protruding columns with hooks, and the lower frame 124 is correspondingly provided with a bayonet. In this case, the middle frame 5 and the frame 12 are fixedly connected by two clamping methods, which improves the reliability of the connection.

18 and 19 , the above-mentioned elastic sheet 13 includes a top plate 131 and a first side plate 132 and a second side plate 133 formed by bending at opposite ends of the top plate 131 . The first side plate 132 and the second side plate 133 are located on the top plate. 131 on the same side and fixedly connected to the mounting portion 121 , elastic hooks 134 are formed on both sides of the bend between the second side plate 133 and the top plate 131 in the first direction, and the elastic hooks 134 are connected to the first side plate. 132 fits into the groove. The first direction is located between the extension direction of the end of the top plate 131 away from the first side plate 132 and the extension direction of the end of the second side plate 133 . When the above-mentioned middle frame 5 and the frame 12 are clamped, first, place the groove of the middle frame 5 directly above the elastic sheet 13, then move down and place the top plate 131 of the elastic sheet 13 in the groove, and finally press to make the elastic The hook 134 shrinks inward until the entire elastic piece 13 is placed in the groove, and the installation process is very simple, saving time and effort. Under the action of the elastic restoring force of the elastic hooks 134 , the elastic pieces 13 are tightly clamped in the grooves, which ensures that the connection between the frame 12 and the middle frame 5 has high reliability.

It should be noted that the fixed connection between the first side plate 132 and the second side plate 133 and the mounting portion 121 is specifically referring to FIG. 20 and FIG. 21 . A buckle 135 is provided on the mounting portion 121 corresponding to the buckle 135 with an engaging groove 1211 .

In some embodiments, referring to FIG. 12 and FIG. 16 , the above-mentioned reflection sheet adopts a three-dimensional reflection sheet 3, and the three-dimensional display sheet includes a plurality of cavities arranged in an array, the cavity is composed of a bottom surface and a side surface, and the light source is located on the bottom surface of the cavity, The sides of the adjacent cavities form prisms for spacing the adjacent cavities, and the tops of the prisms support the diffuser plate 6 . At this time, the contrast ratio of the display device can reach 50,000:1, thereby achieving a better display effect. However, when the three-dimensional reflection sheet 3 is used, it is difficult for the light emitted by the light source to reach the top of the prism, resulting in a checkerboard-like dark shadow in the image on the display panel 9, which seriously affects the display effect of the image.

In order to solve the problem of shadows appearing in the image on the display panel 9, a reflection film 4 is arranged between the three-dimensional reflection sheet 3 and the diffuser plate 6, and the surface of the reflection film 4 close to the light source is in contact with the top of the prism; the reflection film 4 is used for It reflects the first incident light and transmits the second incident light; wherein, the first incident light is the light emitted by the light source and enters the reflective film 4 at a first angle through the diffusing plate 6; the second incident light is the light emitted by the light source and is the first incident light Two angles are incident on the reflective film 4; the first angle is greater than or equal to the predetermined angle threshold, and the second angle is less than the predetermined angle threshold. At this time, since the reflective film 4 in contact with the top of the prism can cover the top position of the prism, the top position of the prism can reflect the light emitted by the light source through the reflective film 4, thereby eliminating the image on the display panel 9 The shadow that exists at the top of the prism of the neutral reflective sheet 3 improves the display effect of the image. In specific implementation, the thickness of the reflective film 4 can be set so that the reflective film 4 satisfies the above-mentioned reflection and transmission conditions.

12 , a quantum dot film 7 can also be provided on the side of the diffuser plate 6 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 is more excellent. The above-mentioned quantum dot film 7 is used to generate excitation light (after the light emitted by the light source is incident on the quantum reflection film 4, the excitation light excited by the quantum reflection film 4, for example, when the light source adopts a blue light source, the quantum dot film 7 to excite red light and green light), the excitation light and the light emitted by the light source can be mixed into white light, and at this time, the above-mentioned reflection sheet is also used to reflect the excitation light. Specifically, when the above-mentioned light source adopts a blue light source, the above-mentioned reflective film 4 adopts a blue-transmitting red-green film 41, and the above-mentioned quantum dot film 7 is used to excite red light and green light. The red light and green light incident on the surface of the transparent blue-to-red-green film 41 are all reflected, and at the same time, the blue-to-red and green film 41 reflects the blue light incident on the surface of the reflective film 4 at a first angle, and transmits the blue light incident on the surface of the reflective film 4 at a second angle. The blue light on the surface of the film 4 can increase the brightness and improve the light efficiency.

The back panel 1 of the display device according to the embodiment of the present invention is further provided with mounting ears 14 for mounting the optical film 8, that is, the mounting portion 121 is provided with mounting ears 14 for mounting the optical film 8, and the mounting ears 14 include The fixed base 141 and the protrusion 142 disposed on the fixed base 141 are fixedly connected with the mounting portion 121 . Specifically, referring to FIGS. 12 , 22 and 23 , the fixing base 141 is screwed to the installation position of the fixing base 141 of the mounting portion 121 , and the optical film 8 is provided with a hanging hole corresponding to the protrusion 142 on the hanging ear 14 , and the protrusion 142 Extend into the hanging hole to hang the optical film 8 on the mounting portion 121 . In addition, the above-mentioned transparent blue-to-red-green film 41 can also be attached to the mounting lug 14 together with the optical film 8, and the quantum dot film 7 and the diffusion plate 6 are sandwiched therebetween. At this time, the blue-transmitting red-green film 41 is hooked by the hanging lugs 14 of the optical film 8, and it is only necessary to provide corresponding hanging holes on the blue-transmitting and red-green film 41, no other fixing structure is required, and the structure is simple and easy to implement. .

It should be understood that the positions of the above-mentioned mounting ears 14 on the mounting portion 121 are not unique. For example, a plurality of mounting ears 14 are arranged on the upper frame 123 , a plurality of mounting ears 14 are arranged on the lower frame 124 , and a plurality of mounting ears on the upper frame 123 14 and the plurality of hanging ears 14 on the lower frame 124 are arranged one-to-one opposite; for another example, the plurality of hanging ears 14 are arranged on the left frame 125, the plurality of hanging ears 14 are arranged on the right frame 126, and the plurality of hanging ears 14 on the left frame 125 The ears 14 are disposed opposite to the plurality of mounting ears 14 on the right frame 126 one by one. Wherein, the side of the frame 12 corresponding to the mounting ears 14 is provided with at least two mounting ears 14, and the two mounting ears 14 are distributed at both ends of the side to ensure a better mounting effect and ensure that the diaphragm is mounted. After the flatness. Specifically, the number of the mounting ears 14 can be adjusted correspondingly according to the size of the display device, for example, increased or decreased, as long as the diaphragm can be stably and flatly mounted on the mounting portion 121 .

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

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention. , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (9)

1. A display device comprises a backboard, and is characterized in that the backboard comprises a backboard main body and a frame, wherein the frame is detachably connected with the backboard main body around the backboard main body;

the backplate main part is plane sheet structure, display device still includes:

a display panel for displaying an image;

the middle frame is positioned between the display panel and the back plate and used for bearing the display panel;

the frame is including being used for connecting fixedly the installation department of center, the bottom of installation department to the direction extension of backplate main part is formed with the fixed part, the fixed part with backplate main part fixed connection.

2. The display device according to claim 1, wherein the bezel comprises an upper frame, a lower frame, a left frame, and a right frame;

the upper frame is fixedly connected with the backboard main body at the upper side of the backboard main body, the lower frame is fixedly connected with the backboard main body at the lower side of the backboard main body, the left frame is fixedly connected with the backboard main body at the left side of the backboard main body, and the right frame is fixedly connected with the backboard main body at the right side of the backboard main body.

3. The display device according to claim 2, wherein a first slot is provided at an end of the fixing portion of the upper frame close to the left frame, a first locking plate is provided at an end of the fixing portion of the left frame close to the upper frame, the first locking plate is embedded in the first slot, and a screw penetrates through the back plate main body and the first locking plate is fastened to a bottom wall of the first slot;

or, one end, close to the upper frame, of the fixing part of the left frame is provided with a first clamping groove, one end, close to the left frame, of the fixing part of the upper frame is provided with a first clamping plate, the first clamping plate is embedded into the first clamping groove, and a screw penetrates through the backboard main body and the first clamping plate and is fastened to the bottom wall of the first clamping groove.

4. The display device according to claim 2 or 3, wherein a second slot is provided at an end of the fixing portion of the upper frame close to the right frame, a second clamping plate is provided at an end of the fixing portion of the right frame close to the upper frame, the second clamping plate is embedded in the second slot, and a screw passes through the back plate main body and the second clamping plate is fastened to a bottom wall of the second slot;

or a second clamping groove is formed in one end, close to the upper frame, of the fixing portion of the right frame, a second clamping plate is arranged at one end, close to the right frame, of the fixing portion of the upper frame, the second clamping plate is embedded into the second clamping groove, and a screw penetrates through the backboard main body and the second clamping plate and is fastened to the bottom wall of the second clamping groove.

5. The display device according to claim 1, wherein a surface of the back plate main body remote from the display panel is provided with a reinforcing rib.

6. The display device according to claim 1, wherein the mounting portion is provided with a spring piece, one side of the middle frame, which is close to the back plate, is provided with a groove, and the spring piece is embedded into the groove so that the middle frame is clamped on the mounting portion.

7. The display device according to claim 6, wherein the elastic sheet comprises a top plate, and a first side plate and a second side plate which are formed by bending two opposite ends of the top plate, the first side plate and the second side plate are located on the same side of the top plate and are fixedly connected with the mounting portion, two sides of a bent part of the second side plate and the top plate extend towards a first direction to form an elastic clamping hook, and the elastic clamping hook is matched with the first side plate and clamped into the groove;

the first direction is located between the extending direction of one end of the top plate far away from the first side plate and the extending direction of the tail end of the second side plate.

8. The display device according to claim 4, further comprising an optical film, wherein the optical film is located between the display panel and the back plate, a hanging lug for hanging the optical film is arranged on the mounting portion, the hanging lug comprises a fixing base and a protrusion arranged on the fixing base, and the fixing base is fixedly connected with the mounting portion.

9. The display device according to claim 8, wherein a plurality of the hanging lugs are arranged on the upper frame, a plurality of the hanging lugs are arranged on the lower frame, and the hanging lugs on the upper frame are arranged in one-to-one correspondence with the hanging lugs on the lower frame;

or;

a plurality of the hangers set up left side frame, it is a plurality of the hangers set up right side frame, a plurality of on the frame of a left side the hangers with a plurality of on the frame of the right side the hangers one-to-one sets up.

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