A display device

Abstract

The present invention discloses a display device, which relates to the display field, realizes interactive display of multiple screens, increases the display area, and solves the problem that the display device needs to be supported by a box such as a TV cabinet. The display device includes: a main screen, which is used to display a first image; a secondary screen, which is fixedly connected to the bottom of the main screen, and is used to display a second image and support the main screen. The present invention is used to display images.

Description

Technical Field

[0001] The present invention relates to the field of display, and in particular to a display device. Background Art

[0002] With the development of science and technology, display devices have become increasingly popular in people's daily lives, and users have higher and higher requirements for display devices. As users' demands for processing multiple tasks simultaneously increase, display devices with only one screen can no longer meet users' needs.

[0003] Current display devices, such as LCD TVs, are generally a screen that is placed on a user's TV cabinet through a mounting base, and the back panel is a one-piece bending method of the bottom panel and side panels using a stamping process, which is not conducive to the appearance of the entire display device and has a high manufacturing process difficulty. In addition, when using an LCD TV, users also need to prepare a box structure such as a TV cabinet to support the LCD TV. Summary of the invention

[0004] An embodiment of the present invention provides a display device, which realizes interactive display of multiple screens, increases the display area, and solves the problem that the display device needs to be supported by a box such as a TV cabinet.

[0005] To achieve the above object, the embodiments of the present invention adopt the following technical solutions:

[0006] A display device comprises: a main screen, the main screen is used to display a first image; a sub-screen, the sub-screen is fixedly connected to the bottom end of the main screen, the sub-screen is used to display a second image and support the display device.

[0007] The display device provided by the embodiment of the present invention includes a main screen and a sub-screen, wherein the main screen is used to display a first image, the sub-screen is fixedly connected to the bottom of the main screen, and the sub-screen is used to display a second image and support the display device. Based on this, the display device can control the display height of the main screen by designing the structure of the sub-screen, and ensure that the display device can be stably placed on a plane. Therefore, when using the display device, the user does not need to prepare a box structure such as a TV cabinet. In addition, the sub-screen can play a role in auxiliary display. For example, when watching network TV using the main screen, the sub-screen can be used to browse program introductions of other channels or perform operations such as searching for information online; the sub-screen can also be combined with the main screen for display to form a larger display screen. Compared with the prior art, the display device provided by the embodiment of the present invention realizes the interactive display of multiple screens and increases the display area by combining the main screen and the sub-screen; at the same time, by designing the structure of the sub-screen, the display height of the main screen can be controlled and the entire display device can be supported, solving the problem that the display device needs to be supported by a box such as a TV cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;

[0009] Figure 2 is a cross-sectional view of a display device according to an embodiment of the present invention;

[0010] Figure 3 It is a structural schematic diagram of the mounting support mechanism side of the display device according to an embodiment of the present invention;

[0011] Figure 4 is a schematic structural diagram of a support mechanism of a display device according to an embodiment of the present invention;

[0012] Figure 5 A perspective view of a mounting support mechanism side of a display device according to an embodiment of the present invention;

[0013] Figure 6 A partial enlarged view of a metal adapter of a display device according to an embodiment of the present invention;

[0014] Figure 7 A partial enlarged view of the rotational connection between the main screen and the auxiliary screen of the display device according to an embodiment of the present invention;

[0015] Figure 8 is a schematic structural diagram of a back panel of a display device according to an embodiment of the present invention;

[0016] Fig. 9 is a cross-sectional view of a back plate of a display device according to an embodiment of the present invention;

[0017] Fig.10 An exploded view of a back plate of a display device according to an embodiment of the present invention;

[0018] 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 present invention;

[0019] Fig.12 An exploded view of the internal structure of a display device according to an embodiment of the present invention;

[0020] Fig.13 A schematic structural diagram of a light board of a display device according to an embodiment of the present invention;

[0021] Fig.14 A schematic diagram of the structure of a sub-light board of a display device according to an embodiment of the present invention;

[0022] Fig.15 is a cross-sectional view of a sub-light panel of a display device according to an embodiment of the present invention;

[0023] Fig.16 is a cross-sectional view of the internal structure of a display device according to an embodiment of the present invention;

[0024] Fig.17is a back side view of a back plate of a display device according to an embodiment of the present invention;

[0025] Fig.18 It is a partial enlarged view of the connection between the middle frame and the mounting portion of the display device according to the embodiment of the present invention through the spring piece;

[0026] Fig.19 A schematic diagram of the structure of a spring of a display device according to an embodiment of the present invention;

[0027] Fig. 20 This is a schematic diagram of a structure in which a spring piece of a display device according to an embodiment of the present invention is fixed to a mounting portion;

[0028] Fig.21 The second structural schematic diagram of the spring piece and the mounting portion of the display device according to the embodiment of the present invention is fixed;

[0029] Fig. 22 A schematic diagram of the structure in which the hanging ear of the display device according to an embodiment of the present invention is fixed to the mounting portion;

[0030] Fig.23 It is a schematic diagram of the structure of the hanging ear of the display device according to an embodiment of the present invention.

[0031] Reference numerals:

[0032] 100-main screen; 200-secondary screen; 210-housing; 300-support mechanism; 310-first fixing member; 320-second fixing member; 330-support body; 400-metal adapter; 410-fixing plate; 420-pin; 430-shielding plate; 500-first rotating metal member; 600-second rotating metal member; 1-back plate; 11-back plate body; 111-avoidance structure; 112-reinforcement rib; 12-frame; 121-installation part; 1211-clamping groove; 122-fixing part; 123-upper frame; 1231-first slot; 1232-second slot; 1 24-lower frame; 125-left frame; 1251-first card board; 126-right frame; 1261-second card board; 13-spring; 131-top plate; 132-first side plate; 133-second side plate; 134-elastic hook; 135-buckle; 14-hanging ear; 141-fixed base; 142-protrusion; 2-light board; 21-sub-light board; 211-wiring terminal; 212-light board drive module; 3-stereoscopic reflective sheet; 4-reflective film; 41-transparent blue returning red and green film; 5-middle frame; 6-diffuser plate; 7-quantum dot film; 8-optical film; 9-display panel; 10-back shell. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Reference Figure 1 and Figure 2 The display device includes: a main screen 100, the main screen 100 is used to display 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 to display a second image and support the display device.

[0038] The display device according to the embodiment of the present invention refers to Figure 1 and Figure 2, including a main screen 100 and a sub-screen 200, wherein the main screen 100 is used to display a first image, and the sub-screen 200 is fixedly connected to the bottom of the main screen 100, and the sub-screen 200 is used to display a 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 by designing the structure of the sub-screen 200, and ensure that the display device can be stably placed on a plane. Therefore, when using the display device, the user does not need to prepare a box structure such as a TV cabinet. In addition, the above-mentioned sub-screen 200 can play a role in auxiliary display. For example, when watching online TV using the main screen 100, the sub-screen 200 can be used to browse program introductions of other channels or perform operations such as searching for information online; the above-mentioned sub-screen 200 can also be displayed in combination with the main screen 100 to form a larger display screen. Compared with the prior art, the display device provided in the embodiment of the present invention realizes interactive display of multiple screens and increases the display area through the combination of the main screen 100 and the sub-screen 200; at the same time, through the structural design of the sub-screen 200, the display height of the main screen 100 can be controlled and the entire display device can be supported, thereby solving the problem that the display device needs to be supported by a box such as a TV cabinet.

[0039] 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 to collect and play the audio data of the main screen 100, and the second audio module is arranged in the sub-screen 200, and is used to collect and play the audio data of the sub-screen 200. Among them, the second audio module can operate independently, that is, when the main screen 100 is not working and the sub-screen 200 does not need to display images, the sub-screen 200 can also be used as a separate intelligent speaker.

[0040] The structure of the secondary screen 200 supporting the entire display device is not unique. In some embodiments, refer to Figure 1 and Figure 2 The secondary screen 200 includes a housing 210, the bottom wall of which is in contact with the ground to support the display device placed on the ground. At this time, when the display height of the main screen 100 is constant, there is no need to design a separate support structure at the lower end of the secondary screen 200, such as a mounting base, so the space area below the main screen 100 is fully utilized, so that the display area of ​​the secondary screen 200 is larger, and the structure is simple and easy to implement.

[0041] In order to increase the stability of the display device when placed on the ground, refer to Figure 2, the end of the bottom wall of the housing 210 located on the image display side of the display device extends along the horizontal plane in the direction away from the surface of the display device displaying the image, so as to prevent the display device from tipping over to the image display side of the display device. In this case, the area where the bottom wall of the housing 210 located on the image display side of the display device is in contact with the ground becomes larger, which can effectively prevent the display device from tipping over to the image display side of the display device, thereby increasing the stability of the display device placed on the ground. In addition, the extended part of the bottom wall of the housing 210 located on the image display side of the display device gradually narrows toward the middle and the thickness gradually decreases, which not only saves materials but also makes it more beautiful.

[0042] It should be understood that when the above-mentioned display device is placed against a wall, the surface of the display device away from the displayed image is against the wall, and there is no need to worry about the display device tipping over to the side of the display device away from the displayed image. However, during the use of the display device, the display device is often 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, the stability of the display device placed on the ground is further increased, such as Figure 2 and Figure 3 As shown, the display device further includes a support mechanism 300, which is tilted 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 horizontal plane as the bottom wall of the housing 210, so as to prevent the display device from tipping over 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 housing 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, thereby increasing the stability of the display device placed on the ground.

[0043] The support mechanism 300 may be fixedly connected to the surface of the main screen 100 away from the displayed image, or may be fixedly connected to the surface of the secondary screen 200 away from the displayed image, or may be fixedly connected to both the surface of the main screen 100 away from the displayed image and the surface of the secondary screen 200 away from the displayed image. Preferably, the support structure is fixedly connected to both the surface of the main screen 100 away from the displayed image and the surface of the secondary screen 200 away from the displayed image, which can also enhance the reliability of the connection between the main screen 100 and the secondary screen 200. For details, refer to Figure 2 , Figure 3 and Figure 4The 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 sub-screen 200. Usually, the above-mentioned fixed connection adopts a screw connection. For example, the first fixing member 310 is fastened to the surface of the main screen 100 away from the display screen in the horizontal direction by screws, and the second fixing member 320 is fastened to the top of the sub-screen 200 in the vertical direction by screws. Through the fixation of the above two screw connection structures, a stable triangular structure is formed between the support mechanism 300 and the main screen 100 and the sub-screen 200. At the same time, the connection reliability between the support mechanism 300 and the main screen 100 and the sub-screen 200 is high, and the reliability of the connection between the main screen 100 and the sub-screen 200 is enhanced.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The support mechanism 300 also 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 support body 330, the first fixing member 310, and the second fixing member 320 can also be fixedly connected by a detachable connection method such as a snap connection or a screw connection. Among them, since the first fixing member 310 can be formed by extending from the surface of the main screen 100 away from the display screen at one end of the support body 330, the first fixing member 310 and the support body 330 are integrally formed, which avoids the installation process of the first fixing member 310 and the support body 330. The processing process is simple and can be integrally formed by injection molding. 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. Of course, other processing methods can also be used. The second fixing member 320 is located in the middle position of the support body 330, and it is not easy to be directly integrally formed with the support body 330 by injection molding, so the second fixing member 320 and the support body 330 are detachably connected. As can be seen from the above, in an embodiment of the present invention, the first fixing member 310 and the support body 330 are integrally formed, and the first fixing member 310 is located at one end of the support body 330 close to the main screen 100, and the second fixing member 320 is detachably connected to the support body 330. Compared with other detachable connections, such as snap connections, screw connections have high connection reliability, and the connected parts are not easy to be separated from each other, so the second fixing member 320 is connected to the support body 330 through a screw connection structure. Specifically, the second fixing member 320 includes a first fixing portion that is attached to the support body 330 and a second fixing portion that is attached to the top of the auxiliary screen 200. The first fixing portion is fastened to the support body 330 by a first screw, and the second fixing portion is fastened to the top of the auxiliary screen 200 by a second screw.

[0045] It should be noted that a positioning structure is further provided between the first fixing part 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 provided on the first fixing part, and the other is provided 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 with the cooperation of the positioning structure, the connection reliability of the first fixing part and the support body 330 is high.

[0046] The housing 210 of the main screen 100 and the housing 210 of the auxiliary screen 200 are usually made of plastic. When the main screen 100 and the auxiliary screen 200 are directly connected and fixed through the housing 210, the connection of the housing 210 is prone to deformation due to the heavy weight of the main screen 100, which leads to connection failure. Therefore, in order to avoid the above problems, Figure 3 , Figure 5 and Figure 6 As shown, metal adapters 400 are provided on both sides of the connection between the main screen 100 and the auxiliary screen 200, and the main screen 100 and the auxiliary 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 auxiliary screen 200 are fixedly connected through the metal adapters 400, which can effectively prevent the connection between the main screen 100 and the auxiliary screen 200 from being deformed, thereby ensuring the reliability of the connection; in addition, the metal adapters 400 are provided on both sides of the connection between the main screen 100 and the auxiliary screen 200, which facilitates the installation and removal of the main screen 100 and the auxiliary screen 200.

[0047] In some embodiments, the 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 is provided with an avoidance socket corresponding to the clamping column 420, and the clamping column 420 extends into the avoidance socket and is screwed to the fixing plate 410. Specifically, as Figure 5 and Figure 6 As shown, the lower side of the fixing plate 410 is provided with an avoidance socket, and the clamping column 420 and the fixing plate 410 are provided with two corresponding screw connection structures. At this time, the clamping column 420 is first inserted into the avoidance socket, the screw hole on the clamping column 420 is matched with the screw hole on the fixing plate 410, and then the clamping column 420 and the fixing plate 410 are screwed together with screws.

[0048] It should be noted that a shielding plate 430 is 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, making the display device more fashionable and beautiful.

[0049] 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, and the user's line of sight is perpendicular to the main screen 100, so it is not easy to see the reflected light, and the main screen 100 has a good display effect. Based on this, in order to give users a better user experience, refer to Figure 7 , the main screen 100 is rotatably connected to the sub-screen 200. In this case, the user can adjust the freedom of the main screen 100 relative to the sub-screen 200 according to personal needs, so as to adjust the main screen 100 to the best viewing angle.

[0050] Specifically, refer to Figure 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 with a semicircular protrusion 142; and the second rotating metal member 600 is a metal strip with a semicircular depression; wherein the first rotating metal member 500 and the second rotating metal member 600 are respectively arranged on the main screen 100 and the auxiliary screen 200, including the following two situations: the first rotating metal member 500 is installed at the bottom end of the main screen 100, and the second rotating metal member 600 is installed at the bottom end of the main screen 100. The movable metal part 600 is installed at the top of the secondary screen 200, and the metal strip with the semicircular protrusion 142 is inserted into the metal strip with the semicircular depression, so that the main screen 100 and the secondary screen 200 can be rotated and adjusted; the second type, the second rotating metal part 600 is installed at the bottom of the main screen 100, the first rotating metal part 500 is installed at the top of the secondary screen 200, and the metal strip with the semicircular protrusion 142 is inserted into the metal strip with the semicircular depression, so that the main screen 100 and the secondary screen 200 can be rotated and adjusted. In this way, the metal strip with the semicircular protrusion 142 extends into the metal strip with the semicircular depression, and the user can bend the main screen 100 to move forward and backward according to the personal viewing effect, so as to adjust the main screen 100 to the best viewing tilt angle, and the user experience is high.

[0051] It should be noted that the internal structures of the main screen 100 and the secondary screen 200 are similar, and the main screen 100 is taken as an example for detailed description. The internal structure of the main screen 100 is described as the internal structure of a single-screen display device. There is no other difference between the main screen 100 and the single-screen display device except for the different descriptions. In addition, for the convenience of description, the display device mentioned below only introduces the internal structure of a single-screen display device, and is not limited to a single-screen display device.

[0052] Reference Figure 8 and Fig. 9 The display device includes a back panel 1, and the back panel 1 includes a back panel body 11 and a frame 12. The frame 12 is detachably connected to the back panel body 11 around the back panel body 11.

[0053] The display device according to the embodiment of the present invention refers to Figure 8 and Fig. 9, including a back panel 1, the back panel 1 including a back panel body 11 and a frame 12, and the frame 12 is detachably connected to the back panel body 11 around the back panel body 11. Based on this, in the production process of the above-mentioned back panel 1, it is not necessary to use a stamping process for one-piece molding, wherein the back panel body 11 is a flat sheet structure, and the frame 12 can be formed by extrusion, so that the difficulty of manufacturing the back panel 1 is reduced, and it is convenient to design the appearance of the back panel 1. For example, the outer side surface of the frame 12 can be designed with different inclination angles to make the outer side surface of the frame 12 present an arc state, thereby making the appearance of the display device more fashionable and beautiful; in addition, the back panel 1 adopts a detachable connection between the back panel body 11 and the frame 12, which improves the overall strength of the back panel 1 and can meet the requirements of large-size display devices. The display device provided by the embodiment of the present invention separates the back panel 1 into a back panel main body 11 and a frame 12. There is no need to adopt the existing stamping process to manufacture the back panel 1. Other process methods with lower difficulty can be used to manufacture the back panel 1. For example, the frame 12 is formed by extrusion. At the same time, since the frame 12 is separated from the back panel main body 11, the frame 12 and the back panel main body 11 can be processed separately, which is convenient for the appearance design of the back panel 1, especially the frame 12 with a more complex structure. The outer side surface of the frame 12 can be designed with different inclination angles to be presented in an arc state on the outer surface of the display device, making the appearance of the display device more fashionable and beautiful.

[0054] 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. Of course, other processing methods can also be used.

[0055] The specific structure of the display device of the embodiment of the present invention is shown in FIG. Fig.12 , Fig.15 and Fig.16, at least including a back plate 1, a light source, a reflector, a diffuser 6, an optical film 8, a middle frame 5 and a display panel 9 arranged in sequence along the thickness direction of the display device. Among them, due to the current high requirements of users on brightness / color gamut / number of partitions, the number of the above-mentioned light sources is large. When multiple light sources are fixed on the back plate 1 in the form of light strips, the number of light strips is also large. Specifically, the light strip is provided with a wiring terminal 211, and the light strip is electrically connected to the light strip driving module on the back plate 1 through the wiring terminal 211. The light strip driving module is used to drive and control the light strip, that is, to control the on or off of the LED light. At this time, more light strips lead to a large number of circuit wirings between the light strips and the light strip driving modules, resulting in a larger area of ​​the light strip driving module on the back of the back panel 1. In addition, the power board, main control board and other functional boards on the back panel 1 make the driver board and other functional boards on the back of the back panel 1 occupy a larger area of ​​the back panel 1 when laid out, usually more than 60% to 70%. As a result, this part of the back panel 1 cannot be directly exposed as an appearance surface. At the same time, since the area that can be used as the appearance is too small and not beautiful, in order to cover the unsightly back panel 1 and wiring, a large rear shell 10 is usually used to directly wrap the entire back panel 1, which makes the display device as a whole thicker and cannot achieve a thin display device.

[0056] For the above problems, refer to Fig.13 , Fig.14 and Fig.15The multiple light sources of the embodiment of the present invention are fixed between the back plate 1 and the reflective sheet in the form of a lamp board 2. Specifically, the first surface of the lamp board 2 is provided with LED lamps arranged in an array, and the second surface of the lamp board 2 is provided with wiring terminals 211 of the LED lamps. The LED lamps are electrically connected to the wiring terminals 211, 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 board 2. The back panel 1 is located on the second surface side of the lamp board 2, and a avoidance structure 111 is provided on the back panel body 11 corresponding to the wiring terminal 211, and the wiring terminal 211 is located in the avoidance structure 111; or, the first surface of the above-mentioned lamp board 2 is provided with LED lamps arranged in an array, and the second surface of the lamp board 2 is provided with the wiring terminals 211 of the LED lamps and a lamp board driving module 212, the LED lamps are electrically connected to the wiring terminals 211 and the lamp board 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 board 2; the back panel 1 is located on the second surface side of the lamp board 2, and a avoidance structure 111 is provided on the back panel body 11 corresponding to the wiring terminals 211 and the lamp board driving module 212, and the wiring terminals 211 and the lamp board driving module 212 are located in the avoidance structure 111. In this case, the wiring terminal 211 and / or the light board driving module 212 are arranged on the second surface of the light board 2, and are accommodated in the avoidance structure 111 of the back panel 1, so that the LED lamp is integrated with the wiring terminal 211 and / or the light board driving module 212. The arrangement of the avoidance structure 111 reduces the thickness of the display device. At the same time, the integrated structure eliminates the light board driving module 212 on the back panel 1, which can reduce the number of circuit wiring and functional boards (driving modules for controlling each light board 2, connecting the light board 2 and the power board) on the back panel 1, thereby reducing the area occupied by the functional board on the back panel 1, thereby increasing the appearance area of ​​the back panel 1; in addition, the back panel 1 adopts a detachable connection between the back panel body 11 and the frame 12 to form the back panel 1, and the overall strength of the back panel 1 is relatively large, which can meet the requirements of large-size display devices. As can be seen from the above, the back panel 1 can be used as a back cover 10, and there is no need to cover the back panel 1 with a back cover 10, thereby greatly reducing the thickness of the display device and realizing a thin display device.

[0057] In order to effectively improve the contrast of the image displayed by the display device, refer to Fig.13 , Fig.14 and Fig.15The above-mentioned light board 2 is composed of a plurality of sub-light boards 21, and the brightness of the multiple light sources in each sub-light board 21 can be controlled by the control circuit. In this case, when the brightness of the image at the corresponding position of a certain sub-light board 21 among the multiple sub-light boards 21 is high, the brightness of the multiple light sources in the sub-light board 21 is increased by the control circuit; conversely, when the brightness of the image at the corresponding position of a certain sub-light board 21 among the multiple sub-light boards 21 is low, the brightness of the multiple light sources in the sub-light board 21 is reduced by the control circuit, thereby effectively improving the contrast of the image displayed by the display device. Among them, the contrast of the display device using an integral light board 2 to control all light sources can reach 1000:1. Tests have shown that the embodiment of the present invention uses a light board 2 formed by splicing a plurality of sub-light boards 21. Under the premise of adopting the above-mentioned multi-zone control, the contrast of the display device can reach 10000:1 or even higher.

[0058] Reference Fig. 9 and Fig.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 back panel body 11 to form a fixing portion 122, and the fixing portion 122 is fixedly connected to the back panel body 11. The mounting portion 121 is directly fixedly connected to the back panel body 11, and the fixing portion 122 is extended to form a fixed connection with the back panel body 11, so that the fixed connection portion of the back panel body 11 and the frame 12 is separated from the fixed connection portion of the frame 12 and the middle frame 5. The fixed connection of the fixing portion 122 to the back panel body 11 will not interfere with the fixed connection of the mounting portion 121 and the middle frame 5, so that the fixed connection methods that can be adopted for the back panel body 11 and the frame 12 are more diversified, and in the process of fixed connection, the area where the fixing portion 122 and the back panel body 11 can be fixedly connected is larger, which is convenient for operation. Since the fixing part 122 is fixedly connected to the back panel body 11 by screw connection, no additional connection structure needs to be designed, the connection reliability is high, and the connected parts are not easy to be separated from each other, the back panel body 11 and the fixing part 122 are usually connected by screw connection. Specifically, the screws pass through the back panel body 11 from the side of the back panel body 11 close to the middle frame 5 and are fastened to the fixing part 122 to avoid the screws being exposed on the appearance surface of the back panel 1, thereby affecting the aesthetics of the display device.

[0059] Further, in order to facilitate the installation and removal of the frame 12 and the back panel body 11, refer to Fig. 9 and Fig.10The 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 fixedly connected to the back panel body 11 at the upper side of the back panel body 11, the lower frame 124 is fixedly connected to the back panel body 11 at the lower side of the back panel body 11, the left frame 125 is fixedly connected to the back panel body 11 at the left side of the back panel body 11, and the right frame 126 is fixedly connected to the back panel body 11 at the right side of the back panel body 11, and the connection method can adopt 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. Fig.11 Take 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 of them are in a strip structure, which is convenient for extrusion molding; in addition, the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are fixedly connected to the back panel body 11 one by one on the corresponding side of the back panel body 11, which is not only convenient for installation and disassembly, but also when the frame 12 on one side of the back panel body 11 is damaged, only the frame 12 on the corresponding side needs to be replaced, thereby reducing the maintenance cost. As can be seen from the above, the assembly order of the back panel 1 of the display device of the embodiment of the present invention is: the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are extruded separately, and then the upper frame 123, the lower frame 124, the left frame 125 and the right frame 126 are screwed to the back panel body 11 to obtain the back panel 1, which reduces the difficulty of production and has a low maintenance cost.

[0060] In order to simplify the installation process of the frame 12 and the back panel body 11 and increase the reliability of the connection between the frame 12 and the back panel body 11, refer to Fig.10, a first card slot 1231 is provided at one end of the fixing portion 122 of the upper frame 123 close to the left frame 125, a first card plate 1251 is provided at one end of the fixing portion 122 of the left frame 125 close to the upper frame 123, the first card plate 1251 is embedded in the first card slot 1231, and the screws pass through the back panel body 11 and the first card plate 1251 to be fastened to the bottom wall of the first card slot 1231; or, a first card slot 1231 is provided at one end of the fixing portion 122 of the left frame 125 close to the upper frame 123, a first card plate 1251 is provided at one end of the fixing portion 122 of the upper frame 123 close to the left frame 125, the first card plate 1251 is embedded in the first card slot 1231, and the screws pass through the back panel body 11 and the first card plate 1251 to be fastened to the bottom wall of the first card slot 1231. At this time, during the assembly process of the above-mentioned back panel 1, firstly, the screw connection between the upper frame 123 and the back panel body 11 and the screw connection between the left frame 125 and the back panel body 11 are simplified to an integrated screw connection of the upper frame 123, the left frame 125 and the back panel body 11, thereby reducing the number of screw connections and simplifying the installation process; secondly, before the upper frame 123, the left frame 125 and the back panel body 11 are screwed together, the upper frame 123 and the left frame 125 are initially fixed by the cooperation of the first clamping plate 1251 and the first clamping groove 1231, which not only enhances the reliability of the connection between the upper frame 123 and the left frame 125 and the back panel body 11, but also facilitates the subsequent positioning of the back panel body 11 using the upper frame 123 and the left frame 125, thereby facilitating the smooth progress of the screw connection process, thereby reducing the operational difficulty of the screw connection process and shortening the assembly time of the back panel body 11 and the frame 12.

[0061] Similarly, refer to Fig.10, a second card slot 1232 is provided at one end of the fixing portion 122 of the upper frame 123 close to the right frame 126, a second card 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 card plate 1261 is embedded in the second card slot 1232, and the screws pass through the back panel body 11 and the second card plate 1261 to be fastened to the bottom wall of the second card slot 1232; or, a second card slot 1232 is provided at one end of the fixing portion 122 of the right frame 126 close to the upper frame 123, a second card 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 card plate 1261 is embedded in the second card slot 1232, and the screws pass through the back panel body 11 and the second card plate 1261 to be fastened to the bottom wall of the second card slot 1232. At this time, in the assembly process of the above-mentioned back panel 1, firstly, the screw connection between the upper frame 123 and the back panel body 11 and the screw connection between the right frame 126 and the back panel body 11 are simplified to the upper frame 123, the right frame 126 and the back panel body 11 being screwed together as one body, thereby reducing the number of screw connections and simplifying the installation process; secondly, before the upper frame 123, the right frame 126 and the back panel body 11 are screwed together, the upper frame 123 and the right frame 126 are initially fixed by the cooperation of the second clamping plate 1261 and the second clamping groove 1232, which not only enhances the reliability of the connection between the upper frame 123 and the right frame 126 and the back panel body 11, but also facilitates the subsequent positioning of the back panel body 11 using the upper frame 123 and the right frame 126, which is conducive to the smooth progress of the screw connection process, thereby reducing the operating difficulty of the screw connection process and shortening the assembly time of the back panel body 11 and the frame 12.

[0062] When the back plate 1 is used for a large-sized display device, in order to further ensure that the strength of the back plate 1 is sufficient to support the large-sized display device, refer to Fig.17 A reinforcing rib 112 is provided on the surface of the back panel body 11 away from the display panel 9, and correspondingly, an avoidance notch is provided on the fixing portion 122 of the frame 12 corresponding to the reinforcing rib 112, so that the strength of the back panel 1 can be effectively improved to prevent the back panel 1 from being deformed or even broken when used for a large-sized display device. Specifically, the reinforcing rib 112 can be a plurality of parallel reinforcing ribs arranged on the surface of the back panel body 11 away from the display panel 9, or a plurality of reinforcing ribs 112 can be arranged in a grid shape on the surface of the back panel body 11 away from the display panel 9. The number of reinforcing ribs 112 and their distribution on the surface of the back panel body 11 away from the display panel 9 can be determined according to actual conditions.

[0063] The method of fixing the middle frame 5 to the frame 12 is not unique. For example, refer to Fig.16 and Fig.18, a spring piece 13 is installed on the mounting portion 121, and a groove is provided on the side of the middle frame 5 close to the back plate 1, and the spring piece 13 is embedded in 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 does not require tools during installation and removal, which facilitates the installation and removal of the middle frame 5. In addition, with a separate spring piece 13 structure, when the clamping fails, it is usually not necessary to replace the corresponding frame 12 or the middle frame 5, and only the spring piece 13 needs to be replaced, and the maintenance cost is low.

[0064] It should be noted that the above-mentioned spring 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 with the sides of the corresponding middle frame 5. Among them, the sides corresponding to the middle frame 5 and the lower frame 124 are provided with a plurality of convex columns with clamping hooks, and the lower frame 124 is correspondingly provided with a clamping opening, and the clamping hook passes through the clamping opening to fix the middle frame 5 and the lower frame 124. 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.

[0065] Reference Fig.18 and Fig.19 The above-mentioned spring sheet 13 includes a top plate 131 and a first side plate 132 and a second side plate 133 formed by bending at two opposite ends of the top plate 131. The first side plate 132 and the second side plate 133 are located on the same side of the top plate 131 and are fixedly connected to the mounting portion 121. Both sides of the bending part of the second side plate 133 and the top plate 131 extend in the first direction to form an elastic hook 134. The elastic hook 134 cooperates with the first side plate 132 to snap into the groove. Among them, 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 is snapped with the frame 12, first, the groove of the middle frame 5 is placed just above the spring sheet 13, then it is moved downward and the top plate 131 of the spring sheet 13 is placed in the groove, and finally it is pressed to make the elastic hook 134 shrink inward until the entire spring sheet 13 is placed in the groove. The installation process is very simple, saving time and effort. Under the action of the elastic restoring force of the elastic hook 134 , the spring piece 13 is tightly stuck in the groove, ensuring that the connection between the frame 12 and the middle frame 5 has high reliability.

[0066] 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 referred to in Fig. 20 and Fig.21 The first side plate 132 and the second side plate 133 are both cut inward to form a buckle 135, and a snap-fit ​​groove 1211 is provided on the mounting portion 121 corresponding to the buckle 135. The buckle 135 extends into the snap-fit ​​groove 1211 to snap the first side plate 132 and the second side plate 133 onto the mounting portion 121.

[0067] In some embodiments, reference Fig.12 and Fig.16 , the above-mentioned reflective sheet adopts a three-dimensional reflective 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, the light source is located on the bottom surface of the cavity, and the side surfaces of adjacent cavities constitute a prism for spacing adjacent cavities, and the top of the prism supports the diffusion plate 6. At this time, the contrast of the display device can reach 50000:1, thereby achieving a better display effect. However, when the three-dimensional reflective sheet 3 is used, the light emitted by the light source is difficult to reach the top of the above-mentioned 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.

[0068] In order to solve the problem of dark shadows appearing in the image on the display panel 9, a reflective film 4 is arranged between the three-dimensional reflective sheet 3 and the diffuser plate 6, and the surface of the reflective film 4 close to the light source contacts the top of the prism; the reflective film 4 is used to reflect the first incident light and transmit 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 diffuser plate 6; the second incident light is the light emitted by the light source and enters the reflective film 4 at a second angle; 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 dark shadow existing at the top position of the prism of the three-dimensional reflective sheet 3 in the image on the display panel 9, and improving the display effect of the image. In a specific implementation, the thickness of the reflective film 4 can be set so that the reflective film 4 meets the above-mentioned reflection and transmission conditions.

[0069] Among them, refer to Fig.12 , a quantum dot film 7 can also be provided on the side of the diffusion 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 (the excitation light excited by the quantum reflective film 4 after the light emitted by the light source is incident on the quantum reflective film 4, for example, when the light source adopts a blue light source, red light and green light are excited on the quantum dot film 7), and the excitation light and the light emitted by the light source can be mixed into white light. At this time, the above-mentioned reflective film 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. At this time, the blue-transmitting red-green film 41 reflects all the red light and green light incident on the surface of the blue-transmitting red-green film 41, and at the same time, the blue-transmitting red-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, so that the brightness can be improved and the light effect can be improved.

[0070] The back plate 1 of the display device of the embodiment of the present invention is further provided with a hanging ear 14 for mounting the optical film 8, that is, the mounting portion 121 is provided with a hanging ear 14 for hanging the optical film 8, and the hanging ear 14 includes a fixed base 141 and a protrusion 142 arranged on the fixed base 141, and the fixed base 141 is fixedly connected to the mounting portion 121. Fig.12 , Fig. 22 and Fig.23 The fixed base 141 is screwed to the fixed base 141 mounting position 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 extends into the hanging hole to hang the optical film 8 on the mounting portion 121. In addition, the above-mentioned blue-transmitting red-green film 41 can also be hung on the hanging ear 14 together with the optical film 8, and the quantum dot film 7 and the diffuser 6 are sandwiched between the two. At this time, the blue-transmitting red-green film 41 is hung by the hanging ear 14 of the optical film 8, and it is only necessary to set a corresponding hanging hole on the blue-transmitting red-green film 41, without the need for other fixing structures, and the structure is simple and easy to implement.

[0071] It should be understood that the position of the above-mentioned hanging ears 14 on the mounting portion 121 is not unique. For example, multiple hanging ears 14 are arranged on the upper frame 123, multiple hanging ears 14 are arranged on the lower frame 124, and the multiple hanging ears 14 on the upper frame 123 are arranged one by one with the multiple hanging ears 14 on the lower frame 124; for another example, multiple hanging ears 14 are arranged on the left frame 125, multiple hanging ears 14 are arranged on the right frame 126, and the multiple hanging ears 14 on the left frame 125 are arranged one by one with the multiple hanging ears 14 on the right frame 126. Among them, at least two hanging ears 14 are arranged on the side of the frame 12 corresponding to the hanging ears 14, and the two hanging ears 14 are distributed at both ends of the side to ensure a better hanging effect and ensure the flatness of the diaphragm after hanging. Specifically, the number of hanging ears 14 can be adjusted accordingly according to the size of the display device, for example, increased or decreased, so as to be able to stably and flatly hang the diaphragm on the mounting portion 121.

[0072] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0073] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in 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

1. A display device, characterized in that: include: A main screen, wherein the main screen is used to display a first image; A secondary screen, the secondary screen is fixedly connected to the bottom end of the main screen, and the secondary screen is used to display a second image and support the display device; The secondary screen comprises a shell, and the bottom wall of the shell can be in contact with the ground to support the display device to be placed on the ground; The display device further comprises: a supporting mechanism, the supporting mechanism being arranged obliquely in a vertical direction on a surface of the display device away from a displayed image, and a bottom end of the supporting mechanism being located at the same horizontal plane as a bottom wall of the housing, so as to prevent the display device from tipping over to a side of the display device away from the displayed image; The supporting mechanism includes an integrally formed first fixing member and a second fixing member, the first fixing member is fixedly connected to the surface of the main screen away from the display image, and the second fixing member is fastened to the top of the auxiliary screen by screws, and the supporting structure is used to support the fixedly connected main screen and the auxiliary screen so that the main screen and the auxiliary screen can be stably placed on a plane in a posture tilted backward relative to a vertical plane.

2. The display device according to claim 1, characterized in that One end of the bottom wall of the housing located on the image display side of the display device extends along a horizontal plane in a direction away from the image display surface of the display device to prevent the display device from tipping over to the image display side of the display device.

3. The display device according to claim 1, characterized in that The support mechanism also includes a support body, the first fixing member is integrally formed with the support body, and the first fixing member is located at one end of the support body close to the main screen, and the second fixing member is detachably connected to the support body.

4. The display device according to claim 1, characterized in that Metal adapters are provided on both the left and right sides of the connection between the main screen and the auxiliary screen, and the main screen and the auxiliary screen are fixedly connected through the metal adapters.

5. The display device according to claim 4, characterized in that: The metal adapter comprises: A fixing plate, the fixing plate being connected to a surface of the main screen away from a display image; A card column, the card column is connected to the top of the secondary screen; The clamping column is screwed to the fixing plate.

6. The display device according to claim 1, characterized in that: The main screen is rotatably connected to the auxiliary screen.

7. The display device according to claim 6, characterized in that: The display device further includes: A first rotating metal member, wherein the first rotating metal member is a metal strip with a semicircular protrusion; A second rotating metal member, wherein the second rotating metal member is a metal strip with a semicircular depression; The first rotating metal part is installed at the bottom end of the main screen, the second rotating metal part is installed at the top end of the auxiliary screen, and the semicircular raised metal strip is inserted into the semicircular recessed metal strip, so that the main screen and the auxiliary screen can be rotatably adjusted; or, the second rotating metal part is installed at the bottom end of the main screen, the first rotating metal part is installed at the top end of the auxiliary screen, and the semicircular raised metal strip is inserted into the semicircular recessed metal strip, so that the main screen and the auxiliary screen can be rotatably adjusted.

Images