CN213423649U

CN213423649U - Multifunctional composite liquid crystal display device

Info

Publication number: CN213423649U
Application number: CN202022562634.XU
Authority: CN
Inventors: 刘扬亮; 丁泓; 李海彬; 孙永达; 王勇荣; 林蕊; 吴瑱玥; 章萍; 练风帆; 柴斐
Original assignee: Shenzhen General Institute of Architectural Design and Research Co Ltd
Current assignee: Shenzhen General Institute of Architectural Design and Research Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-06-11
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a multi-functional compound liquid crystal display device, this multi-functional compound liquid crystal display device includes the casing, display and light control glass, the casing includes back lid and preceding frame, form the accommodation space between back lid and the preceding frame, preceding frame has the opening that feeds through in the accommodation space, the accommodation space is located to the display, this display screen includes display screen and mainboard, the display screen is connected with the mainboard electricity, the display surface of display screen sets up towards the opening, the mainboard is located display screen's the display surface one side that deviates from the display screen, light control glass locates in the accommodation space, be located display screen's display surface one side, light control glass is connected with the mainboard electricity. Through all setting up light control glass, display screen and mainboard in the accommodation space, the circuit structure that makes the electricity connect also can not arrange in the accommodation space with exposing, is favorable to making this multi-functional compound liquid crystal display device's outward appearance succinct.

Description

Multifunctional composite liquid crystal display device

Technical Field

The utility model relates to a liquid crystal display technical field especially relates to a multi-functional compound liquid crystal display device.

Background

At present, most indoor liquid crystal screens on the market are in a black panel state when being in a state of stopping working, and in order to better achieve the purposes of beautifying the indoor environment and increasing the functional diversity of products, the composite liquid crystal screen compounded with the dimming glass which presents a static picture when power is off also starts to enter the market. In the correlation technique, often directly additionally set up dimming glass in the outside of display screen, under this kind of mode, dimming glass and display screen need link to each other through exposed data line, lead to compound LCD screen to walk the line comparatively in disorder, are unfavorable for improving compound LCD screen's outward appearance neatness nature.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses multi-functional compound liquid crystal display device is favorable to improving compound LCD screen's outward appearance neatness nature.

In order to achieve the above object, the utility model discloses a multi-functional compound liquid crystal display device, include:

the shell comprises a rear cover and a front frame, the front frame is buckled and fixedly connected with the rear cover, an accommodating space is formed between the front frame and the rear cover, and the front frame is provided with an opening communicated with the accommodating space;

the display is arranged in the accommodating space and comprises a display screen and a mainboard, the display screen is electrically connected with the mainboard, the display surface of the display screen faces the opening, and the mainboard is positioned on one side of the display screen, which is far away from the display surface of the display screen; and

the dimming glass is arranged in the accommodating space and is positioned on one side of the display surface of the display screen, and the dimming glass is electrically connected with the main board.

As an alternative embodiment, the projection of the light control glass on the display surface of the display screen completely covers the display surface of the display screen.

As an optional implementation manner, the display surface of the display screen abuts against the light control glass, and the light control glass abuts against the front frame.

As an optional implementation manner, a limiting component is arranged on the rear cover, the limiting component is located in the accommodating space, the limiting component is arranged towards the front frame and forms a limiting space with the front frame, and the display screen and the light control glass are both located in the limiting space.

As an optional embodiment, the limiting component includes one or more protrusions, and when the limiting component includes a plurality of protrusions, the plurality of protrusions are arranged at intervals.

As an optional implementation manner, a fixing portion is disposed on the rear cover, the fixing portion is located in the accommodating space, and the display screen is detachably connected to the fixing portion.

As an optional implementation manner, the rear cover is convexly provided with a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are located in the accommodating space, the first connecting portion has a first connecting surface facing the opening, the second connecting portion has a second connecting surface facing the opening, and the first connecting surface is located above the second connecting surface; and the number of the first and second electrodes,

the dimming glass is detachably connected to the first connecting surface, and the display screen is detachably connected to the second connecting surface.

As an alternative embodiment, the light adjusting glass is connected to the first connecting surface through a screw structure, a buckle structure or a magnetic structure, and the display screen is connected to the second connecting surface through a screw structure, a buckle structure or a magnetic structure.

As an optional implementation manner, the housing further includes a support frame, the support frame is fixedly disposed on the rear cover, the support frame is located outside the accommodating space, and the support frame is configured to support the rear cover.

As an optional implementation manner, the multifunctional composite liquid crystal display device further includes a shielding case, and the shielding case is disposed in the accommodating space and located between the main board and the rear cover.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a multi-functional compound liquid crystal display device, on current LCD's basis, add a dimming glass before original display, promptly, with dimming glass setting in the casing that is used for fixed display to dimming glass and display screen need not link through exerted data line and mainboard electricity, are favorable to making multi-functional compound liquid crystal display device walk the line neatly simple more, thereby improve compound LCD screen's outward appearance neatness nature.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a multifunctional composite liquid crystal display device according to an embodiment of the present invention;

fig. 2 is an exploded view of the multifunctional composite lcd device according to the embodiment of the present invention;

fig. 3 is a cross-sectional view of a multifunctional composite liquid crystal display device according to an embodiment of the present invention;

fig. 4 is a schematic structural section view of a light control glass according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view illustrating a first assembling structure of a light control glass and a display screen according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

fig. 7 is a schematic cross-sectional view illustrating a second assembling structure of the light control glass and the display screen according to the embodiment of the present invention;

FIG. 8 is an enlarged schematic view at A in FIG. 7;

fig. 9 is a schematic cross-sectional view illustrating a third assembling structure of the light control glass and the display panel according to the embodiment of the present invention;

fig. 10 is an enlarged schematic view at a in fig. 9.

Icon: 1. a housing; 10. an accommodating space; 11. a front frame; 110. an opening; 12. a rear cover; 120. connecting columns; 13. a support frame; 14a, a limiting structure; 14b, a limiting space; 15a, a fixing part; 15b, a fixed space; 16. a first connection portion; 160. a first connection face; 17. a second connecting portion; 170. a second connection face; 2. a display; 20. a display screen; 21. a main board; 3. a light control glass; 30. glass; 31. a liquid crystal film; 4. a shield case; 40. avoiding the hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a multifunctional composite liquid crystal display device according to an embodiment of the present invention, fig. 2 is an exploded schematic structural diagram of a multifunctional composite liquid crystal display device according to an embodiment of the present invention, and fig. 3 is a schematic structural diagram with a section of a multifunctional composite liquid crystal display device according to an embodiment of the present invention. The multifunctional composite liquid crystal display device disclosed in the embodiment installs the dimming glass 3, the display screen 20 and the mainboard 21 together in the accommodating space 10 in the shell 1, so that the electric connection circuit between the dimming glass 3 and the mainboard 21 and between the display screen 20 and the mainboard 21 can be arranged in the accommodating space 10 in the shell 1 without being exposed, which is beneficial to making the appearance of the composite liquid crystal display screen concise and beautiful. Specifically, the housing 1 includes a rear frame and a front frame 11, the front frame 11 is fastened and fixed to the rear cover 12, an accommodating space 10 is formed between the front frame 11 and the rear cover 12, and the front frame 11 has an opening 110 communicated with the accommodating space 10. The display 2 is located in the accommodating space 10, the display 2 includes a display screen 20 and a main board 21, the display screen 20 is electrically connected to the main board 21, a display surface of the display screen 20 faces the opening 110, and the main board 21 is located on a side of the display screen 20 that is away from the display surface of the display screen 20. The light control glass 3 is disposed in the accommodating space 10 and located on a display surface side of the display screen 20, and the light control glass 3 is electrically connected to the main board 21.

By adopting the multifunctional composite liquid crystal display device of the embodiment, the dimming glass 3 is arranged on one side of the display surface of the display screen 20, and the dimming glass 3, the display screen 20 and the mainboard 21 are installed in the accommodating space 10 together, so that the electric connection circuit between the dimming glass 3 and the mainboard 21 and between the display screen 20 and the mainboard 21 can be concealed in the accommodating space 10, the wiring of the electric connection circuit is favorably integrated, the appearance of the multifunctional composite liquid crystal display device is simple, and the installation process is simplified.

Optionally, the front frame 11 and the rear cover 12 are detachably connected by a screw structure or a snap structure, so that when components such as the light control glass 3, the display screen 20, and the main board 21 are mounted in the accommodating space 10, the front frame 11 can be detached from the rear frame, and the light control glass 3, the display screen 20, and the main board 21 can be mounted.

Alternatively, the display screen 20 may be circular, rectangular, or other shape. It will be appreciated that the shape of the opening 110 and the rear cover 12 is adapted to the shape of the display screen 20, and the shape of the front frame 11 is adapted to the shape of the rear cover 12. Further, the projection of the rear cover 12 on the display surface of the display screen 20 may completely cover the display surface of the display screen 20, and the projection of the opening 110 on the display surface of the display screen 20 may completely cover an area that needs to be displayed by the display screen 20, and the embodiment is not particularly limited to the shapes of the display screen 20, the front frame 11, the opening 110, and the rear cover 12.

The present embodiment is described by taking the display screen 20, the opening 110, and the front frame 11 and the rear cover 12 as rectangular projections on the display surface of the display screen 20 as an example.

In some embodiments, the housing 1 further includes a supporting frame 13, the supporting frame 13 is fixedly disposed on the rear cover 12, the supporting frame 13 is located outside the accommodating space 10, and the supporting frame 13 is used for supporting the rear cover 12. Specifically, one end of the supporting frame 13 may be connected to a plane, and the other end of the supporting frame 13 is supported and connected to the rear cover 12, so that a fixed distance is formed between the rear cover 12 and the plane. The support frame 13 is arranged to support the rear cover 12, so that the relative position of the rear cover 12 and a plane is fixed, and the relative position of the whole multifunctional composite liquid crystal display device and the plane is fixed through the connection of the rear cover 12 and the front frame 11. It will be appreciated that the plane may be, for example, a table top, a floor, or the like.

In some embodiments, the multifunctional composite lcd device further includes a shielding case 4, and the shielding case 4 is disposed in the accommodating space 10 and located between the main board 21 and the rear cover 12.

Specifically, the shielding case 4 is used for bidirectionally shielding electronic signals, i.e., shielding external electromagnetic waves to reduce the influence of the external electromagnetic waves on the internal circuits of the multifunctional composite liquid crystal display device, and simultaneously, blocking the electromagnetic waves generated inside the multifunctional composite liquid crystal display device from radiating outwards to reduce the influence of the electromagnetic waves generated inside the multifunctional composite liquid crystal display device on the outside. It is understood that, for the purpose of shielding electronic signals, the shape of the shielding case 4 should be adapted to the shape of the motherboard 21, the projection of the shielding case 4 on the motherboard 21 completely covers the motherboard 21, and the shielding case 4 is made of a material with high magnetic permeability and electric conductivity, such as one or more materials of electromagnetic pure iron, permalloy, silicon steel, iron-aluminum alloy, aluminum or copper.

Optionally, the shielding cover 4 and the rear cover 12 may be connected by a detachable connection structure such as a threaded structure, a fastening structure, or a magnetic structure, so that the shielding cover 4 can be easily detached or installed on the rear cover 12 when the shielding cover 4 is repaired.

Illustratively, the rear cover 12 and the shield can 4 may be connected by means of a snap-fit structure. For example, the shielding case 4 is opened with an avoiding hole 40, the rear cover 12 is further provided with a connecting column 120, the connecting column 120 extends from the rear cover 12 toward the shielding case 4, and passes through the avoiding hole 40 to connect with the main board 21, so as to fix the main board 21 on the rear cover 12.

It can be understood that the main board 21 and the connecting post 120 can be connected by a detachable connecting structure such as a screw structure, a fastening structure or a magnetic structure, so that the main board 21 can be easily detached or mounted on the rear cover 12 when the main board 21 is repaired.

Alternatively, the connecting post 120 may be integrally formed with the rear cover 12 to simplify the manufacturing process of the rear cover 12.

Optionally, the connecting columns 120 and the avoiding holes 40 are multiple, and by providing multiple connecting columns 120 and avoiding holes 40, more connecting points between the main board 21 and the rear cover 12 are provided, which is beneficial to improving the stability of connection between the main board 21 and the rear cover 12.

Alternatively, the cross-sectional shape of the connecting column 120 may be circular, rectangular or other shapes, and the shape of the avoiding hole 40 may also be circular, rectangular or other shapes. It should be understood that the cross-sectional shape of the connecting column 120 is not necessarily the same as the shape of the avoiding hole 40 through which the connecting column 120 passes, as long as the avoiding hole 40 can avoid the connecting column 120, so that the shielding cover 4 does not interfere with the connecting column 120 on the rear cover 12 when in the mounting position during the assembling and disassembling process, which is not limited in this embodiment.

Referring to fig. 4, in some embodiments, the projection of the light control glass 3 on the display surface of the display screen 20 completely covers the display surface of the display screen 20, so that when the multifunctional composite liquid crystal display device is in the power-off state, the static image presented by the light control glass 3 can completely block the black surface presented by the display surface of the display screen 20, and thus the multifunctional composite liquid crystal display device can beautify the indoor environment when the multifunctional composite liquid crystal display device is in the power-off state.

Further, the light control glass 3 is composed of a glass 30 and a liquid crystal film 31, and the liquid crystal film 31 is sandwiched between the two glasses 30. The glass 30 is used to provide a transparent fixing structure for the liquid crystal film 31, and specifically, the liquid crystal film 31 is sandwiched by the two glasses 30, so that the liquid crystal film 31 can be disposed along two opposite planes of the two glasses 30. The two glasses 30 keep the liquid crystal film 31 in a flat state by a clamping action to fix the projection shape of the liquid crystal film 31 on the plane of the glasses 30 without change.

Specifically, the liquid crystal film 31 is configured to assume a transparent state in the power-on state and a static pattern in the power-off state to block a black screen presented on the display surface of the display screen 20 in the power-off state. Alternatively, the static pattern of the liquid crystal film 31 in the power-off state may be a regular pattern, an irregular picture pattern, or a pure-color fog pattern with a white whole surface. It can be understood that the area of the liquid crystal film 31 which appears white in the power-off state can be used as the area of a projection screen for projection by a projector, which is beneficial to enabling the multifunctional composite liquid crystal display device to have more use functions and expanding the use range of the multifunctional composite liquid crystal display device.

It is understood that the glass 30 may be at least two pieces, and the liquid crystal film 31 may be at least one piece.

Alternatively, more than two pieces of glass 30 may be used, and the liquid crystal film 31 may be provided in a plurality of pieces, as long as one piece of liquid crystal film 31 is sandwiched and fixed by two pieces of glass 30. Meanwhile, the shapes of the glass 30 and the liquid crystal film 31 may be adapted to the display screen 20, and it is sufficient to ensure that the projection of the light control glass 3 on the display surface of the display screen 20 can completely cover the display surface of the display screen 20, and the number of the glass 30 and the liquid crystal film 31, the thickness of the single glass 30, and the shape of the light control glass 3 are not particularly limited in this embodiment.

In the present embodiment, the light control glass 3 is rectangular, and is composed of two pieces of glass 30 having a thickness of approximately 3mm and one liquid crystal film 31.

Referring to fig. 5 and 6, in some embodiments, the display surface of the display screen 20 abuts against the light control glass 3, the light control glass 3 abuts against the front frame 11, and the light control glass 3 is located on the surface of the accommodating space 10. Make mutual butt between display screen 20 and the dimming glass 3, be favorable to through reducing the space between display screen 20 and the dimming glass 3 to reduce the refraction effect of dimming glass 3 to the light that display screen 20 sent, thereby reduce the influence of dimming glass 3 to display effect. Meanwhile, the possibility that other sundries enter between the display screen 20 and the dimming glass 3 can be reduced, so that the requirement of the multifunctional composite liquid crystal display device on the environment is lowered, and the application range of the multifunctional composite liquid crystal display device is expanded.

In some embodiments, in order to limit the position of the light control glass 3 and the display screen 20 in the accommodating space 10, the rear cover 12 is provided with a limiting part 14a, the limiting part 14a is located in the accommodating space 10, the limiting part 14a is arranged towards the front frame 11 and forms a limiting space 14b with the front frame 11, and the display screen 20 and the light control glass 3 are both located in the limiting space 14 b. The limiting part 14a is arranged, the limiting space 14b is formed by the limiting part 14a and the front frame 11, and the display screen 20 and the light control glass 3 are overlapped and integrally positioned in the limiting space 14b, so that the display screen 20 and the light control glass 3 can be limited in the limiting space 14 b. On the one hand, can effectively restrict the mounted position of display screen 20 and light control glass 3 in accommodation space 10, on the other hand, can be convenient for light control glass 3 and display screen 20 to dismantle or install, and be favorable to simplifying the maintenance work of light control glass 3 and display screen 20, reduce the maintenance cost.

Alternatively, the position limiting component 14a may be a structure integrally formed with the rear cover 12, and by integrally forming the position limiting component 14a with the rear cover 12, the processing technology of the rear cover 12 is facilitated to be simplified, and the assembling process of the multifunctional composite display device is also simplified.

Optionally, the position-limiting component 14a includes one or more protrusions, and when the position-limiting component 14a includes a plurality of protrusions, the plurality of protrusions are spaced apart from each other.

In an alternative embodiment, the position-limiting member 14a is an elongated protrusion, which may extend along the length of the display screen 20. The limiting part 14a is arranged to be a long strip-shaped convex block, so that the structure of the forming die of the rear cover 12 is simplified, and the difficulty in designing and manufacturing the forming die of the rear cover 12 is reduced.

In another alternative embodiment, the position limiting component 14a is a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the length direction of the display screen 20. Providing the position restricting part 14a as a plurality of projections is advantageous in reducing the material cost of the rear cover 12 by saving material.

It is understood that, whether the position limiting part 14a includes a projection or a plurality of projections, when the position limiting part 14a is provided on the back cover 12, the position limiting part 14a may be provided on two opposite sides of the back cover 12, so that the position limitation of the display screen 20 and the light control glass 3 may be better achieved.

Referring to fig. 7 and 8, in some embodiments, the rear cover 12 further includes a fixing portion 15a, the fixing portion 15a is located in the accommodating space 10, and the display screen 20 is detachably connected to the fixing portion 15 a. Specifically, when the display panel 20 is connected to the fixing portion 15a, a fixing space 15b is formed between the display panel 20 and the front frame 11, and the light control glass 3 is located in the fixing space 15 b. That is, through being connected display screen 20 and hou gai 12, can utilize being connected of preceding frame 11 and hou gai 12, make between display screen 20 and the preceding frame 11 form fixed space 15b, thereby cooperate through display screen 20 and preceding frame 11, limit dimming glass 3 in fixed space 15b, reach when overhauing dimming glass 3 or display screen 20, can simply dismantle the effect of installing dimming glass 3 and display screen 20, moreover, the steam generator is simple in structure and clear, and be favorable to simplifying the maintenance work of dimming glass 3 and display screen 20, and the maintenance cost is reduced.

Optionally, the display screen 20 may be connected to the fixing portion 15a through a detachable connection structure such as a threaded structure, a fastening structure, or a magnetic structure, which is beneficial to enabling the display screen 20 to be easily detached from the fixing portion 15a during maintenance.

Alternatively, the fixing portion 15a is integrally formed with the rear cover 12, so as to facilitate the processing of the rear cover 12 and simplify the assembling process of the multifunctional composite display device.

Optionally, the fixing portion 15a includes one or more bumps, and when the fixing portion 15a includes a plurality of bumps, the plurality of bumps are disposed at intervals.

In an alternative embodiment, the fixing portion 15a is an elongated protrusion, which may extend along the length direction of the display screen 20. The fixing portion 15a is configured as a strip-shaped projection, which is beneficial to simplifying the structure of the forming mold of the rear cover 12 and reducing the difficulty in designing and manufacturing the forming mold of the rear cover 12.

In another alternative embodiment, the fixing portion 15a is a plurality of bumps, and the plurality of bumps are arranged at intervals along the length direction of the display screen 20. Providing the fixing portion 15a as a plurality of projections is advantageous in reducing the material cost of the rear cover 12 by saving material.

It is understood that, whether the fixing portion 15a includes a bump or a plurality of bumps, when the fixing portion 15a is provided on the rear cover 12, the fixing portions 15a may be provided on two opposite sides of the rear cover 12, so that the fixing of the display screen 20 and the light control glass 3 may be better achieved.

Referring to fig. 9 and 10, in some embodiments, the rear cover 12 is provided with a first connection portion 16 and a second connection portion 17 protruding from the rear cover, the first connection portion 16 and the second connection portion 17 are located in the accommodating space 10, the first connection portion 16 has a first connection surface 160 facing the opening 110, the second connection portion 17 has a second connection surface 170 facing the opening 110, the first connection surface 160 is located above the second connection surface 170, meanwhile, the light control glass 3 is detachably connected to the first connection surface 160, and the display screen 20 is detachably connected to the second connection surface 170.

It is understood that the upper direction is a direction directed toward the front frame 11 by the rear cover 12, as indicated by an arrow direction in fig. 8. The first connecting surface 160 is disposed above the second connecting surface 170, which is beneficial to ensure that the light control glass 3 is disposed on the display surface side of the display 20, and the light control glass 3 and the display 20 can be connected to the rear cover 12 respectively without interference.

In some embodiments, the light control glass 3 is connected to the first connection surface 160 by a screw structure, a snap structure, or a magnetic structure, and the display screen 20 is connected to the second connection surface 170 by a screw structure, a snap structure, or a magnetic structure. Therefore, the dimming glass 3 and the display screen 20 can be conveniently detached or installed during the maintenance of the dimming glass 3 or the display screen 20, the maintenance work of the dimming glass 3 and the display screen 20 is facilitated to be simplified, and the maintenance cost is reduced.

Alternatively, the first connecting portion 16 and the second connecting portion 17 are integrally formed with the rear cover 12, so as to facilitate the process of manufacturing the rear cover 12 and simplify the assembling process of the multifunctional composite display device.

Optionally, the first connecting portion 16 includes one or more bumps, and when the first connecting portion 16 includes a plurality of bumps, the plurality of bumps are spaced apart from each other.

In an alternative embodiment, the first connection portion 16 is an elongated protrusion, which may extend along the length direction of the light control glass 3. The first connecting portion 16 is a strip-shaped whole, which is beneficial to simplifying the structure of the forming mold of the rear cover 12 and reducing the difficulty in designing and manufacturing the forming mold of the rear cover 12.

In another alternative embodiment, the first connection portion 16 is formed by a plurality of bumps and a plurality of bumps arranged at intervals along the length direction of the light control glass 3. Providing the first connecting portion 16 as a plurality of projections is advantageous in reducing the material cost of the rear cover 12 by saving material.

It is understood that, regardless of whether the first connecting portion 16 includes a bump or a plurality of bumps, when the first connecting portion 16 is provided on the back cover 12, the first connecting portions 16 may be provided on both opposite sides of the back cover 12, so that the connection of the dimming glass 3 can be better achieved.

Optionally, the second connection portion 17 includes one or more bumps, and when the second connection portion 17 includes a plurality of bumps, the plurality of bumps are disposed at intervals.

In an alternative embodiment, the second connecting portion 17 is an elongated protrusion, and the elongated protrusion may extend along the length direction of the display screen 20. The second connecting portion 17 is arranged as a strip-shaped whole, so that the structure of the forming die of the rear cover 12 is simplified, and the difficulty in designing and manufacturing the forming die of the rear cover 12 is reduced.

In another alternative embodiment, the second connecting portion 17 is a plurality of bumps, and the plurality of bumps are arranged at intervals along the length direction of the display screen 20. Providing the second connecting portion 17 as a plurality of projections is advantageous in reducing the material cost of the rear cover 12 by saving material.

It is understood that, whether the second connecting portion 17 includes a bump or a plurality of bumps, when the second connecting portion 17 is provided on the rear cover 12, the second connecting portion 17 may be provided on both opposite sides of the rear cover 12, so that the connection of the display screen 20 can be better achieved.

The embodiment of the utility model discloses multi-functional compound liquid crystal display device sets up dimming glass through display surface one side at the display screen to all settle dimming glass, display screen and mainboard in the accommodation space, reach and can with between dimming glass and mainboard, and the effect of hiding in the accommodation space with the electric connection circuit between display screen and mainboard, be favorable to making this multi-functional structure that accords with liquid crystal display device regular, the outward appearance is succinct. In addition, the dimming glass and the display screen are detachably connected with the rear cover, so that the dimming glass and the display screen are simple in dismounting and mounting processes, and the overhauling processes of the dimming glass and the display screen are facilitated to be simplified.

The multifunctional composite liquid crystal display device disclosed by the embodiment of the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples herein, and the description of the above embodiments is only used to help understanding the multifunctional composite liquid crystal display device and the core idea thereof; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A multifunctional composite liquid crystal display device, comprising:

2. The multifunctional composite liquid crystal display device of claim 1, wherein the projection of the light control glass on the display surface of the display screen completely covers the display surface of the display screen.

3. The multifunctional composite liquid crystal display device according to claim 1, wherein the display surface of the display screen abuts against the light control glass, and the light control glass abuts against the front frame.

4. The multifunctional composite liquid crystal display device according to claim 1, wherein: the rear cover is provided with a limiting part, the limiting part is located in the containing space, the limiting part faces towards the front frame and forms a limiting space between the front frame and the display screen, and the dimming glass is located in the limiting space.

5. The multifunctional composite liquid crystal display device according to claim 4, wherein: the limiting component comprises one or more protruding blocks, and when the limiting component comprises a plurality of protruding blocks, the protruding blocks are arranged at intervals.

6. The multifunctional composite liquid crystal display device according to any one of claims 1 to 5, wherein: the rear cover is provided with a fixing part, the fixing part is located in the accommodating space, and the display screen is detachably connected to the fixing part.

7. The multifunctional composite liquid crystal display device according to any one of claims 1 to 5, wherein: the rear cover is convexly provided with a first connecting part and a second connecting part, the first connecting part and the second connecting part are positioned in the accommodating space, the first connecting part is provided with a first connecting surface facing the opening, the second connecting part is provided with a second connecting surface facing the opening, and the first connecting surface is positioned above the second connecting surface; and the number of the first and second electrodes,

8. The multifunctional composite liquid crystal display device according to claim 7, wherein: the light adjusting glass is connected with the first connecting surface through a threaded structure, a buckling structure or a magnetic attraction structure, and the display screen is connected with the second connecting surface through a threaded structure, a buckling structure or a magnetic attraction structure.

9. The multifunctional composite liquid crystal display device according to any one of claims 1 to 5, wherein: the casing still includes the support frame, the support frame fixed set up in the back lid, the support frame is located the accommodation space is outside, the support frame is used for supporting the back lid.

10. The multifunctional composite liquid crystal display device according to any one of claims 1 to 5, wherein: the multifunctional composite liquid crystal display device further comprises a shielding case, wherein the shielding case is arranged in the accommodating space and is positioned between the main board and the rear cover.