WO2019019872A1 - Liquid crystal display device - Google Patents

Abstract

Disclosed is a liquid crystal display device, comprising: a housing, the housing comprising a back plate, two opposing sides of the back plate being provided with slide grooves which extend along the corresponding sides, groove openings of the two slide grooves being arranged in an opposing manner, the inside of the back plate being formed with an electronic control accommodating space which partially extends outwards; a display module, the display module comprising a support frame and a display screen and an optical film set mounted on the support frame, two opposing side frame strips of the support frame being respectively mounted within the two slide grooves in a sliding manner, the display module being mounted in the housing; an electronic control module, the electronic control module being mounted in the electronic control accommodating space.

Description

 Liquid crystal display device

Technical field

The present application relates to the field of display devices, and in particular, to a liquid crystal display device.

Background technique

At present, common liquid crystal display devices (such as liquid crystal displays, liquid crystal televisions, mobile phones, tablet computers, etc.) generally include a front case, a rear case, a small back case, a display module, and an electronic control module, wherein the display module Installed between the front and rear casings, the electronic control module is installed between the rear casing and the small rear casing. Since the small back shell and the back shell are connected separately, and the split joints are usually exposed, the integrated style of the liquid crystal display device is weakened, which affects the user experience.

Application content

The main purpose of the present application is to propose a liquid crystal display device aimed at enhancing the integrated style of the liquid crystal display device.

To achieve the above objective, the liquid crystal display device proposed by the present application includes:

a housing, the housing includes a backing plate, and opposite sides of the backing plate are respectively provided with sliding slots extending along the corresponding side edges, and the slots of the two sliding slots are opposite to each other; the inner side of the backing plate Forming an electrically controlled receiving space extending partially outward;

a display module, the display module includes a support frame, and a display screen and an optical film set mounted on the support frame; the opposite side frame strips of the support frame are respectively slidably mounted into the two sliding slots So that the display module is mounted to the housing;

The electronic control module is installed in the electronic control receiving space.

Optionally, the electrically controlled receiving space is formed by partially arching the backing plate outward.

Optionally, the cover of the receiving opening of the electronic control receiving space is provided with a cover.

Optionally, the inner side surface of the back plate is provided with a positioning sinking groove at a periphery of the receiving opening, and a circumference of the cover plate is overlapped with the positioning sinking groove, so that the front plate of the cover plate The face is flush with the inner side of the back panel; or

A plurality of positioning posts are disposed in the electronic control receiving space, and the positioning posts abut against the rear plate surface of the cover plate such that the front plate surface of the cover plate is flush with the inner side surface of the back plate.

Optionally, the inner side surface of the backboard is provided with a plurality of wire sinking slots at a lower edge of the receiving opening of the electronic control receiving space.

Optionally, the side frame strip comprises a substrate and a partition disposed on an inner side of the substrate, and the display screen and the optical film component are disposed on opposite sides of the partition.

Optionally, the side frame strip further includes a limiting plate disposed on an inner side surface of the substrate, the limiting plate is spaced apart from the partition plate, and a side edge of the display screen is located at the partition plate Between the limit plate and the limit plate.

Optionally, the housing further includes two side plates disposed on opposite sides of the back plate, and a cross section perpendicular to the extending direction of each side plate of each side plate is opposite to the other side plate. a convex arc is provided to form two of the chutes on the inner sides of the two side plates; or

The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.

Optionally, the housing further includes a top plate disposed on a top edge of the backboard, and a bottom edge of the backboard is vacant to form a sliding between the lower ends of the two side panels for the display module Installed into the installation port;

The display module slides into the housing from the mounting port, and the top of the display module abuts against the top plate.

Optionally, the optical film set includes a light guide plate, and a bottom end of the support frame is vacant; the liquid crystal display device further includes a sealing component that closes the mounting opening, and the sealing component and the light guide plate There is a backlight strip between the bottom edges.

Optionally, the sealing assembly includes a light strip heat sink, the light strip heat sink includes a first heat sink for mounting the back side of the backlight strip, and a side edge connected to the first heat sink The second heat dissipation plate is fixedly attached to the back surface of the back plate.

Optionally, the sealing assembly further includes a lower decorative frame strip, the lower decorative frame strip includes a decorative bottom plate, and a decorative front side panel and a decorative rear side panel respectively disposed on opposite sides of the decorative bottom panel, the decorative bottom panel A screen support strip is disposed between the bottom edge of the display screen and the backlight strip, and the decorative rear side panel is fixedly disposed on an outer side surface of the second heat dissipation board, and the front side of the decoration The board is at least covered to the bottom edge of the display screen.

In the technical solution of the present application, the electronically controlled receiving space for mounting the electronic control module is formed by partially extending outward from the inner side of the backboard. It can be understood that the receiving opening of the electronically controlled receiving space is located in the backing plate. The side surface, in this way, compared with the technical solution that the electronically controlled receiving space is formed by the small small back shell and the rear shell of the split body, the rear side of the back board can be prevented from forming a separate body joint exposed, thereby enhancing the liquid crystal display device. The integrated style of the whole machine enhances the user experience. In addition, in the present application, when the liquid crystal display device is assembled, the display screen and the optical film group can be first mounted on the support frame to obtain a display module as a whole module, and then the display module is passed through as a whole. The opposite side frame strips of the support frame are respectively slidably mounted into the two sliding slots, so that the display module can be mounted on the housing. Thus, on the one hand, the modular installation of the liquid crystal display device is realized, and the liquid crystal display device is reduced. The looseness of the components simplifies the assembly process and improves the assembly efficiency; on the other hand, it saves the assembly screws between the housing and the display module, which not only saves cost, but also improves the appearance of the housing, and reduces The installation space required for assembling the screws makes the liquid crystal display device thinner and achieves a narrow bezel effect.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and other drawings can be obtained according to the structures shown in the drawings without any creative work for those skilled in the art.

1 is a schematic exploded view of a liquid crystal display device of the present application in a back view;

2 is a sliding assembly diagram of a display module and a housing of the liquid crystal display device of FIG. 1;

Figure 3 is a partial enlarged view of A in Figure 1;

4 is a schematic exploded view of a display module of the liquid crystal display device of FIG. 1;

Figure 5 is a schematic cross-sectional view of the display module and the housing of Figure 2 after assembly;

6 is a schematic exploded view of the front view of the housing of the liquid crystal display device of FIG. 1 and the electronic control module;

Figure 7 is a partial enlarged view of B in Figure 6.

Description of the reference numerals:

Label	name	Label	name
1	case	10	Chute
11	Backplane	12	Side panel
13	Limiting department	14	Electronically controlled containment space
15	Cover	16	Positioning sink
17	Trough	2	Display module
twenty one	Support frame	211	Side frame
212	Top frame	211a	Substrate
211b	Partition	211c	Limit plate
twenty two	Display	twenty three	Optical film set
231	Light guide	232	A reflective sheet
233	DOP diaphragm	3	Sealing component
31	Light strip heat sink	311	First heat sink
312	Second heat sink	32	Lower decorative frame
321	Decorative floor	322	Decorative front side panel
323	Decorative rear side panel	4	Backlight strip
5	Screen support bar	6	Electronic control module

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.

Detailed ways

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that, if there is a directional indication (such as up, down, left, right, front, back, ...) in the embodiment of the present application, the directional indication is only used to explain in a certain posture (as shown in the drawing) The relative positional relationship between the components, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is used for descriptive purposes only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.

The application proposes a liquid crystal display device.

Referring to FIG. 1 , FIG. 2 , FIG. 4 and FIG. 6 , in an embodiment of the present application, the liquid crystal display device includes:

a housing 1 , the housing 1 includes a back plate 11 , and opposite sides of the back plate 11 are respectively provided with sliding slots 10 extending along corresponding sides, and the slots of the two sliding slots 10 are opposite to each other; The inner side is formed with an electrically controlled receiving space 14 extending partially outward;

The display module 2 includes a support frame 21, a display screen 22 mounted on the support frame 21, and an optical film set 23; the opposite side frame strips 211 of the support frame 21 are slidably mounted to the two chutes, respectively. 10, so that the display module 2 is mounted to the housing 1;

The electronic control module 6 is mounted on the electronic control receiving space 14 .

Without loss of generality, in the present embodiment, the optical film set 23 includes a reflective sheet 232, a light guide plate 231, and other optical films (for example, the DOP film 233); and the display screen 22 generally employs an LCD screen. In this embodiment, the electronically controlled receiving space 14 is preferably formed by partially arching the backing plate 11 outwardly. The forming method is simple and easy to manufacture. It can be understood that the receiving opening of the electronically controlled receiving space 14 is located on the inner side of the backing plate 11; The design is not limited thereto. In other embodiments, the electronically controlled receiving space 14 may be directly recessed on the inner side surface of the back plate 11 in the case where the back plate 11 is sufficiently thick. In this case, the housing 1 can also have a flat back surface. In this embodiment, the electronic control module 6 is mounted on the bottom of the electronic control receiving space 14 , and the arched portion of the back plate 11 for limiting the electronic control receiving space 14 is corresponding to the electronic control module 6 . There are cooling holes to ensure heat dissipation of the electronic control module 6.

In this embodiment, the depth of the electronically controlled receiving space 14 is preferably in the range of 25 mm to 30 mm. It can be understood that if the depth of the electrically controlled receiving space 14 is too large, the amount of back convexity required for the backing plate 11 is large, and the preparation is difficult. The cost is high, and the product is bloated; if the depth of the electronic control receiving space 14 is too small, the installation position of the electronic control module 6 may be insufficient, and the heat dissipation is not good; the depth of the electronic control receiving space 14 in this embodiment is deep. Moderate, can take into account the low cost of the product and good heat dissipation. However, the present design is not limited thereto. In other embodiments, the depth of the electronic control receiving space 14 can be appropriately adjusted according to the required volume of the electronic control module 6.

In this embodiment, the receiving opening of the electronic control receiving space 14 is preferably provided with a cover plate 15 for preventing dusting.

In addition, in the embodiment, the housing 1 further includes two side plates 12 disposed on opposite sides of the back plate 11 and two limiting portions 13 respectively connecting the two side plates 12, wherein the limiting portion 13 and the back plate 11 , the back plate 11 , the two side plates 12 and the two limiting portions 13 collectively limit the two opposite sliding grooves 10 . The back plate 11, the two side plates 12 and the two limiting portions 13 are preferably integrally formed to facilitate mass production of the casing 1. In addition, in the embodiment, the limiting portion 13 is disposed as a whole plate member extending along the corresponding side. It can be understood that the limiting portion 13 is located on the front side of the display screen 22, which is a certain degree of appearance. The arrangement of the plate member ensures that the appearance of the liquid crystal display device is good; of course, in other embodiments, the limiting portion 13 may also include a plurality of plate members intermittently disposed in the extending direction of the corresponding side edges. It can also achieve its limit function.

However, the present design is not limited thereto. In other embodiments, the housing 1 may not be provided with the limiting portion 13 on the side plate 12, and the side plate 12 is disposed as a curved plate, specifically, the vertical of each side plate 12 The cross section of the corresponding side extending direction is arranged in an arc shape protruding in a direction away from the other side plate 12 to form two of the chutes 10 on the inner side faces of the side plates 12.

In the technical solution of the present application, the electronic control receiving space 14 for mounting the electronic control module 6 is formed by partially extending outward from the inner side of the back plate 11, and the receiving opening of the electronic control receiving space 14 is located at the back. The inner side of the plate 11 is formed in such a manner that the electrically controlled receiving space 14 is formed by connecting the small rear and rear casings of the split body, so that the rear side of the back plate 11 can be prevented from forming a separate joint exposed. Thereby enhancing the integrated style of the liquid crystal display device and improving the user experience. In addition, in the present application, when the liquid crystal display device is assembled, the display screen 22 and the optical film group 23 may be first mounted on the support frame 21 to obtain a display module 2 as a whole module, and then the display module is The group 2 is integrally slidably mounted into the two sliding slots 10 through the opposite side frame strips 211 of the support frame 21, so that the display module 2 can be mounted on the housing 1. Thus, on the one hand, the liquid crystal display device is realized. The modular installation reduces the fragmentation of the liquid crystal display device, simplifies the assembly process, and improves the assembly efficiency; on the other hand, the assembly screw between the housing 1 and the display module 2 can be saved, which not only saves cost, but also saves cost. The appearance of the casing 1 is improved, and the liquid crystal display device is made thinner by reducing the installation space required for assembling the screws, realizing a narrow bezel effect. Moreover, in the present application, the worker does not need to carry the housing 1 when assembling the display module 2, and the assembly operation of the worker is more convenient.

Referring to FIG. 7 together, the inner side surface of the back plate 11 is provided with a positioning sinking groove 16 at the periphery of the receiving opening, and the periphery of the cover plate 15 is overlapped with the positioning sinking groove 16 so that the front plate of the cover plate 15 The face is flush with the inner side of the back plate 11. It can be understood that when no other components are placed between the cover plate 15 and the positioning sinking groove 16, the depth of the positioning sinking groove 16 is equal to the thickness of the cover plate 15. In this embodiment, the front plate surface of the cover plate 15 and the inner side surface of the back plate 11 are flushly disposed, so that the entire back surface of the reflective sheet 232 can be fitted together, avoiding the back surface of the reflective sheet 232 to the cover plate 15 and The distances of the back sheets 11 are different to cause display defects of different brightness and darkness. However, the present design is not limited thereto. In other embodiments, a plurality of height-adjustable positioning posts may be disposed in the electronic control receiving space 14 and the cover plates may be resisted by the positioning posts. The front plate surface of the 15 is flush with the inner side surface of the back plate 11.

In the present application, in order to facilitate the faulty maintenance of the electronic control module 6, the cover plate 15 is preferably detachably connected to the backboard 11. Specifically, the cover plate 15 can be connected to the back plate 11 by means of a screw lock or a snap connection; the present design is not limited thereto, and in other embodiments, the cover plate 15 can also be adhesively fixed to Positioning the sinker 16.

In the present embodiment, further, the cover 15 is a plastic plate. Specifically, the cover plate 15 can be, but not limited to, a PVC board or a PC board, etc. Plastics such as PVC plastic and PC plastic are common plastics, are easily available, and can be prepared into the cover plate 15 by a simple cutting process or a stamping process. Shape, easy to mass production. In addition, plastics such as PVC plastics and PC plastics are cheaper, which helps to reduce product costs. However, the present design is not limited thereto. In other embodiments, the cover plate 15 may also be provided as a metal plate, such as, but not limited to, an iron plate, an aluminum plate, or the like.

It can be understood that if the cover plate 15 is too thick, on the one hand, the material is more, the cost is higher, on the other hand, it is not convenient to prepare the cover plate 15 by the cutting process or the stamping process; if the cover plate 15 is too thin, the cover plate 15 is easily bent. The deformation is not conducive to the installation of the cover plate 15. In the present embodiment, the thickness of the cover plate 15 is preferably in the range of 1 mm to 1.5 mm in order to balance the low cost and form stability of the cover plate 15.

In this embodiment, the electronic control module 6 is detachably fixed in the electronic control receiving space 14 to facilitate fault repair of the electronic control module 6. In this embodiment, the electronic control module 6 generally includes a main control board integrated with the power module and the source module. It can be understood that the display 22 and the backlight strip 4 are electrically connected to the main control board; The main board fixing column is a screw hole column, and the main board is provided with a screw through hole corresponding to the main board fixing post, and the screw is screwed into the screw hole of the main board fixing column through the screw through hole, and The main control board is fixed in the electronic control receiving space 14; in other embodiments, the main control board can also be fixed in the electronic control receiving space 14 by means of a snap connection. In addition, it should be noted that, in other embodiments, the electronic control module 6 may further include a phase separation power sub-board and a source sub-board, respectively processing the power supply signal and the image signal.

Further, the electronic control receiving space 14 has opposite side walls extending in the up and down direction, and at least one of the two side walls is provided with a plug port (not shown), and the plug port is used for external connection lines and electricity The control module 6 is connected. In this embodiment, the plug port is disposed on the sidewall of the electronic control receiving space 14 , and the plugging port is disposed on the bottom wall of the electronic control receiving space 14 to have a larger plugging operation. The space is convenient for the user to use; and compared with the technical solution that the plug port is disposed on the top wall of the electronic control receiving space 14, the possibility of the plug port being covered with ash can be reduced. In this embodiment, optionally, the plug port includes a source socket and a power socket. It can be understood that the source socket is electrically connected to the source module on the main control board for use in various signal lines ( The TV signal cable, the network signal cable, and the like are plugged in, and the power socket is electrically connected to the power module on the main control board for plugging in the power cable; wherein the source socket is disposed on one side of the electronic control receiving space 14 The wall and the power socket are disposed on the other side wall of the electronic control receiving space 14. Thus, the classification of the plug port is realized, which is more convenient for the user to use.

In this embodiment, at least one of the outer surface of the side frame strip 211 of the support frame 21 and the inner groove surface of the sliding slot 10 is provided as a smooth surface to improve the smoothness of relative sliding between the two, thereby further The assembly efficiency of the liquid crystal display device is improved.

Referring to FIGS. 4 and 5, further, with respect to the support frame 21, the side frame strip 211 includes a substrate 211a and a partition 211b provided on the inner side surface of the substrate 211a. The chute 10 is disposed on the outer side of the substrate 211a, and the display screen 22 and the optical film group 23 are disposed on opposite sides of the partition 211b. It will be appreciated that the arrangement of the spacers 211b can provide attachment and support for the assembly of the display screen 22 and the optical film set 23 on the support frame 21. Specifically, referring to the figure, when the display module 2 is assembled, the display screen 22 is first mounted on one side of the partition 211b to form a support frame-display assembly, and then the support frame-display assembly is flipped by the clamp. The other optical film (for example, the DOP film 233), the light guide plate 231, and the reflection sheet 232 are sequentially mounted on the other side of the partition 211b, thereby completing the modular assembly of the display module 2, and the assembly is ready for use. In this embodiment, the display screen 22 and the optical film set 23 are preferably fixed to the partition plate 211b. Specifically, the display screen 22 can be adhesively fixed to the partition plate 211b, and the material used for bonding can be adhesive glue. It can also be a double-sided tape, which is not limited in this application.

In this embodiment, optionally, the side frame strip 211 of the support frame 21 further includes a limiting plate 211c disposed on an inner side surface of the substrate 211a. The limiting plate 211c is spaced apart from the partition plate 211b, and the side of the display screen 22 is The edge is located between the partition plate 211b and the limiting plate 211c; it can be understood that the display screen 22 is generally heavy, and only by its adhesion to the partition plate 211b, it is difficult to ensure that the display screen 22 can be stably fixed on the support frame 21, Therefore, the addition of the limiting plate 211c can restrict the display screen 22 from being separated from the support frame 21 in a direction away from the plate surface of the partition plate 211b. Optionally, the substrate 211a, the partition plate 211b, and the limiting plate 211c are integrally formed to facilitate mass production, which may be extrusion molding, injection molding, and the like.

In this embodiment, the housing 1 further includes a top plate disposed on the top edge of the back plate 11, and the bottom edge of the back plate 11 is vacant to form a display module 2 between the lower ends of the two sliding slots 10. Enter the installation port. The display module 2 slides into the housing 1 from the mounting opening, and the top of the display module 2 abuts against the top plate. In this embodiment, the top plate is preferably integrally formed with the back plate 11 to facilitate mass production of the housing 1; of course, in other embodiments, the top plate may also be a rear mounting member fixed to the back plate 11. Without loss of generality, on the housing 1, generally, the two ends of the top plate are respectively connected to the top ends of the side plates 12. It can be understood that, in this embodiment, the overall sliding assembly direction of the display module 2 is from the bottom edge of the back panel 11 toward the top edge, and the top panel is disposed to prevent the display module 2 from slipping during the overall sliding assembly process. The phenomenon of the top edge of the backboard 11 is obtained. However, the present design is not limited thereto. In other embodiments, the mounting opening of the housing 1 may also be formed at the top end of the housing 1 such that the overall sliding assembly direction of the display module 2 is from the top edge of the back panel 11 toward the bottom. The direction of the side; for example, but not limited to, the bottom edge and the top edge of the back plate 11 are vacant to form a mounting opening between the lower ends of the two chutes 10, and a decorative opening is formed between the upper ends of the two chutes 10, The display module 2 can be slid into the housing 1 from either the mounting port or the decorative opening.

In this embodiment, generally, the free side edge of the top plate is further connected with a top limiting plate 211c opposite to the back plate 11 to assist in increasing the limiting force for preventing the display module 2 from being detached from the housing 1 on the one hand, and the other Aspects can maintain the uniformity of appearance of the top and both sides of the front side of the casing 1.

In this embodiment, generally, the support frame 21 further includes a top frame strip 212, and two ends of the top frame strip 212 are respectively connected to the top ends of the side frame strips 211. It will be appreciated that both the display screen 22 and the edges of the optical film set 23 are susceptible to breakage, and the top frame strip 212 can be positioned to provide better edge protection for the display screen 22 and the optical film set 23. The bottom end of the support frame 21 is vacant so that backlight light can enter from the bottom edge of the light guide plate 231 of the optical film group 23. In this embodiment, optionally, the cross-sectional shape of the top frame strip 212 is consistent with the cross-sectional shape of the side frame strip 211. Thus, when the top frame strip 212 and the side frame strip 211 are prepared by extrusion molding. The top frame strip 212 and the side frame strip 211 can adopt the same extrusion mold, which reduces the mold cost and reduces the manufacturing cost.

Referring to FIGS. 1 and 3, further, the liquid crystal display device further includes a sealing assembly 3 that closes the mounting opening to limit the display module 2 to the housing 1. In this embodiment, a backlight strip 4 is disposed between the sealing member 3 and the bottom edge of the light guide plate 231. Of course, the backlight strip 4 faces the bottom edge of the light guide plate 231 so that the backlight light emitted from the backlight strip enters the light guide plate. 231; the back side of the backlight strip 4 is attached to the sealing assembly 3 to dissipate heat through the sealing assembly 3. It should be noted that, in the technical solution that the bottom edge and the top edge of the backboard 11 are vacant, in order to prevent the display module 2 from being exposed from the decorative opening, the appearance of the liquid crystal display device is affected, optionally, the liquid crystal display device Also included is a top decorative piece that closes the decorative opening, and the top decorative piece may be a decorative film piece or a top decorative frame strip as long as the decorative opening can be closed.

Referring to FIG. 6 and FIG. 7 , further, the inner side surface of the back plate 11 is provided with a plurality of wire sinking slots 17 at a lower edge of the receiving opening; specifically, a part of the plurality of wire sinking slots 17 extends to the display screen. The bottom edge of the cable 22 enters the electrically controlled receiving space 14 for the connecting wire between the display screen 22 and the electronic control module 6; and some of the plurality of wire sinking slots 17 extend to the backlight strip 4 for The connecting wire between the backlight strip 4 and the electronic control module 6 enters the electronic control receiving space 14; in this embodiment, by the arrangement of the wire sinking slot 17, the connecting wire can be prevented from protruding from the inner side of the backing plate 11, and the reflection is affected. The sheet 232 is attached to the inner side of the back sheet 11.

Referring to FIG. 3, in the embodiment, the sealing assembly 3 further includes a light strip heat dissipating member 31, and the light strip heat dissipating member 31 includes a first heat dissipating plate 311 for attaching and mounting the back side of the backlight strip 4, and is connected to A second heat dissipation plate 312 is disposed on one side of the first heat dissipation plate 311, and the second heat dissipation plate 312 is fixedly disposed on the back surface of the back plate 11. Thus, the backlight strip 4 can not only dissipate heat through the light bar heat dissipation member 31, but also The heat can be dissipated through the indirect backplane 11 to obtain higher heat dissipation efficiency.

Further, the sealing assembly 3 further includes a lower decorative frame strip 32 including a decorative bottom plate 321 and a decorative front side panel 322 and a decorative rear side panel 323 which are respectively disposed on opposite sides of the decorative bottom panel 321 , wherein the decoration The rear side plate 323 is fixedly disposed on the outer side surface of the second heat dissipation plate 312 to be indirectly fixed to the back plate 11; the decorative front side plate 322 is at least covered to the bottom edge of the display screen 22 to avoid the bottom edge of the display screen 22 The components between the decorative bottom plates 321 are exposed. In this embodiment, because the display screen 22 is heavy, in order to prevent the display screen 22 from sliding under the action of gravity, a screen support strip 5 disposed alongside the backlight strip 4 is disposed between the decorative bottom plate 321 and the bottom edge of the display screen 22. .

In the present application, in order to facilitate the disassembly and maintenance of the display module 2, the sealing assembly 3 is preferably detachably connected to the housing 1, and may be, but not limited to, connected by a screw lock or a snap connection. In this embodiment, specifically, the second heat dissipation plate 312 and the back plate 11 and the decorative rear side plate 323 and the second heat dissipation plate 312 are detachably connected.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the patents of the present application, and the equivalent structural transformation, or direct/indirect use, of the present application and the contents of the drawings is used in the present invention. All other related technical fields are included in the patent protection scope of the present application.

Claims (18)

1.  A liquid crystal display device, comprising:

   a housing, the housing includes a backing plate, and opposite sides of the backing plate are respectively provided with sliding slots extending along the corresponding side edges, and the slots of the two sliding slots are opposite to each other; the inner side of the backing plate Forming an electrically controlled receiving space extending partially outward;

   a display module, the display module includes a support frame, and a display screen and an optical film set mounted on the support frame; the opposite side frame strips of the support frame are respectively slidably mounted into the two sliding slots So that the display module is mounted to the housing;

   The electronic control module is installed in the electronic control receiving space.
2. The liquid crystal display device of claim 1, wherein the electrically controlled receiving space is formed by partially arching the backing plate outward.
3. The liquid crystal display device according to claim 1, wherein the upper cover of the receiving opening of the electronic control receiving space is provided with a cover.
4. The liquid crystal display device of claim 3, wherein an inner side surface of the back plate is provided with a positioning sinking groove at a periphery of the receiving opening, and a circumference of the cover plate is overlapped with the positioning sinking groove. So that the front panel surface of the cover plate is flush with the inner side surface of the back panel; or

   A plurality of positioning posts are disposed in the electronic control receiving space, and the positioning posts abut against the rear plate surface of the cover plate such that the front plate surface of the cover plate is flush with the inner side surface of the back plate.
5. The liquid crystal display device according to claim 1, wherein the inner side surface of the back plate is provided with a plurality of wire sinking grooves at a lower edge of the receiving opening of the electronic control receiving space.
6. The liquid crystal display device of claim 1, wherein the side frame strip comprises a substrate, and a spacer disposed on an inner side of the substrate, the display screen and the optical film component being disposed on the spacer The opposite sides.
7. The liquid crystal display device of claim 6, wherein the side frame strip further comprises a limiting plate disposed on an inner side surface of the substrate, the limiting plate is spaced apart from the spacer, the display The side of the screen is located between the partition and the limiting plate.
8. The liquid crystal display device according to claim 1, wherein the housing further comprises two side plates respectively disposed on opposite side edges of the back plate, and a cross section of each side plate perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

   The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
9. The liquid crystal display device of claim 8, wherein the housing further comprises a top plate disposed on a top edge of the backboard, and a bottom edge of the backboard is vacant to be at a lower end of the two side panels Forming a mounting port for sliding the display module into the installation;

   The display module slides into the housing from the mounting port, and the top of the display module abuts against the top plate.
10. The liquid crystal display device according to claim 9, wherein the optical film group includes a light guide plate, and a bottom end of the support frame is vacant; and the liquid crystal display device further includes a sealing member that closes the mounting port, and A backlight strip is disposed between the sealing component and the bottom edge of the light guide plate.
11. The liquid crystal display device of claim 10, wherein the sealing assembly comprises a light strip heat sink, the light strip heat sink comprises a first heat sink for mounting the back side of the backlight strip, and is connected to a second heat dissipation plate on one side of the first heat dissipation plate, and the second heat dissipation plate is fixedly disposed on a back surface of the back plate.
12. The liquid crystal display device of claim 11, wherein the sealing assembly further comprises a lower decorative frame strip, the lower decorative frame strip comprises a decorative bottom plate, and a decorative front side plate disposed on opposite sides of the decorative bottom plate and a rear side panel is disposed, and a screen support strip disposed along the backlight strip is disposed between the decorative bottom panel and the bottom edge of the display screen, and the decorative rear side panel is fixedly disposed on the second heat sink The outer side of the decorative front side panel is at least covered to the bottom edge of the display screen.
13. The liquid crystal display device of claim 2, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
14. The liquid crystal display device of claim 3, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
15. The liquid crystal display device of claim 4, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
16. The liquid crystal display device of claim 5, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
17. The liquid crystal display device of claim 6, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.
18. The liquid crystal display device of claim 7, wherein the housing further comprises two side plates disposed on opposite sides of the back plate, each side plate having a cross section perpendicular to a direction in which the corresponding side edges extend, Forming an arcuate arrangement that protrudes away from the other side panel to form two of the chutes on the inner side surfaces of the two side panels; or

    The housing further includes two side plates disposed on opposite sides of the back plate, and two limiting portions respectively connecting the two side plates, the limiting portion is opposite to the back plate, and the back plate, The two side plates and the two limiting portions jointly define two opposite sliding grooves.