WO2019019880A1

WO2019019880A1 - Liquid crystal display device

Info

Publication number: WO2019019880A1
Application number: PCT/CN2018/094159
Authority: WO
Inventors: 饶春利; 杨福军; 严方红; 刘亚东
Original assignee: 深圳Tcl新技术有限公司
Priority date: 2017-07-27
Filing date: 2018-07-03
Publication date: 2019-01-31
Also published as: CN206906752U

Abstract

Disclosed is a liquid crystal display device, comprising: a housing, the housing being provided with a first accommodating space having a forward-facing opening, the housing comprising a back plate used to form the bottom of the first accommodating space, the inside of the back plate being formed with a second accommodating space which partially extends outwards; a display module, the display module comprising a display screen and an optical film set, the display module being mounted in the first accommodating space; an electronic control module, the electronic control module being mounted at the bottom of the second 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 having a first receiving space that is open toward the front, and the housing includes a backing plate for forming a bottom of the first receiving space, and the inner side of the backing plate is formed to be partially outward An extended second receiving space;

a display module, the display module includes a display screen and an optical film set, and the display module is mounted in the first receiving space;

The electronic control module is mounted on the bottom of the second receiving space.

Optionally, the second receiving space is formed by partially arching the back plate outward.

Optionally, the receiving opening of the second 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 surface is flush with the inner side surface of the back plate; or, the second receiving space is provided with a plurality of positioning posts, and the positioning post abuts against the rear plate surface of the cover plate, so that the cover plate The front panel surface is flush with the inner side surface of the back panel.

Optionally, the cover plate is detachably connected to the back plate.

Optionally, the cover is a plastic 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 second receiving space.

Optionally, the electronic control module is detachably fixed in the second receiving space.

Optionally, the second receiving space has opposite side walls extending in an up-and-down direction, and at least one of the two side walls is provided with a plug port for external connection lines and The electrical control module is connected.

Optionally, the second receiving space has a depth ranging from 25 mm to 30 mm.

In the technical solution of the present application, the second 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 second receiving space is located in the backing plate. The side surface, in this way, compared with the second housing space formed by the small small back shell and the rear shell connected to each other, the back surface of the back board can be prevented from forming a separate joint exposed, thereby enhancing the liquid crystal display device The integrated style of the whole machine enhances the user experience.

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 an embodiment of a liquid crystal display device of the present application;

Figure 2 is an enlarged schematic view of a portion A in Figure 1.

Description of the reference numerals:

标号Label	名称name	标号Label	名称name
11	壳体case	1414	第二收容空间Second containment space
1515	盖板Cover	1616	定位沉槽Positioning sink
1717	走线沉槽Trough	22	显示模组Display module
22twenty two	显示屏Display	23twenty three	光学膜片组Optical film set
231231	导光板Light guide	232232	反射片A reflective sheet
233233	DOP膜片DOP diaphragm	66	电控模组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, in an embodiment of the present application, the liquid crystal display device includes:

a housing 1 having a first receiving space that is open toward the front, and the housing 1 includes a backing plate for forming a bottom of the first receiving space, and the inner side of the backing plate is formed to extend partially outward Second receiving space 14;

a display module 2, the display module 2 includes a display screen 22 and an optical film group 23, and the display module 2 is mounted in the first receiving space;

The electronic control module 6 is mounted on the bottom of the second 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 second receiving space 14 is preferably formed by partially arching the back plate. The forming method is simple and easy to produce. It can be understood that the receiving port of the second receiving space 14 for connecting the first receiving space is located. The inner side of the backboard; however, the design is not limited thereto. In other embodiments, when the backboard is thick enough, the second receiving space 14 may be directly recessed on the inner side of the backboard. Next, the housing 1 can also have a flat back surface. In this embodiment, generally, the arched portion of the backboard for restricting the second receiving space 14 is provided with a heat dissipation hole corresponding to the electronic control module 6 to ensure heat dissipation of the electronic control module 6.

In this embodiment, the depth of the second receiving space 14 is preferably 25 mm to 30 mm. It can be understood that if the depth of the second receiving space 14 is too large, the amount of embossing required for the back plate is large, and the preparation difficulty is high. The cost is high, and the product is bloated; if the depth of the second 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 second receiving space 14 in this embodiment has a moderate depth. Can balance 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 second receiving space 14 can be appropriately adjusted according to the required volume of the electronic control module 6.

In this embodiment, in order to prevent the second receiving space 14 from intercommunicating with the dust in the first receiving space, the receiving opening is preferably provided with a cover plate 15 for mainly preventing dust.

In the embodiment, the liquid crystal display device further includes a front case (not shown) that encloses the first receiving space together with the casing 1, and a plastic frame (not shown) located in the first receiving space. Therefore, when assembling, the electronic control module 6 is first mounted to the bottom of the second receiving space 14, and then the cover 15 is covered, and then the reflective sheet 232, the light guide plate 231, the plastic frame, other optical films and the display screen are sequentially disposed. 22 is installed into the first receiving space, and finally the front case is fixed to the housing 1 to complete the assembly of the main body portion of the liquid crystal display device.

In the technical solution of the present application, the second receiving space 14 for mounting the electronic control module 6 is formed by partially extending outward from the inner side of the backboard, and the receiving opening of the second receiving space 14 is located on the backboard. The inner side surface, thus, compared with the second receiving space 14 formed by the connection of the small small rear case 1 and the rear case 1 , the rear side of the back plate can be prevented from being formed with the exposed body connecting portion, thereby Enhance the integrated style of the LCD device to enhance the user experience.

Referring to FIG. 2, further, the inner side surface of the back plate is provided with a positioning sinking groove 16 at the periphery of the receiving opening, and the peripheral edge of the cover plate 15 is overlapped with the positioning sinking groove 16 so that the front surface of the cover plate 15 It is flush with the inner side of the back panel. 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 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 back. The distances of the plates are different to produce 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 second receiving space 14 and the cover plate may be resisted by the positioning posts. The front surface of the 15 is flush with the inner side of the back panel.

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. Specifically, the cover plate 15 can be connected to the backboard by means of a screw lock or a snap connection; however, the design is not limited thereto. In other embodiments, the cover plate 15 can also be adhesively fixed to the positioning. Sinking 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.

Referring to Figures 1 and 2, further, the inner side of the backboard is provided with a plurality of wire sinking slots 17 at the lower edge of the receiving opening. In this embodiment, generally, the backlight strip of the liquid crystal display device is generally disposed corresponding to the bottom edge of the light guide plate 231, and the backlight strip needs to be connected to the electronic control module 6 through the connecting wire; The electrical connection locations to which the modules 6 are connected are also typically disposed at the bottom edge of the display screen 22. Thus, a portion of the plurality of wire sinking slots 17 extend to the bottom edge of the display screen 22 for the connection wires between the display screen 22 and the electronic control module 6 to enter the second receiving space 14; A portion of the sinker 17 extends to the backlight strip for the connection between the backlight strip and the electronic control module 6 to enter the second receiving space 14. In this embodiment, by the arrangement of the wire sinking groove 17, the connecting wire can be prevented from protruding from the inner side surface of the backing plate, and the fitting and mounting between the reflective sheet 232 and the inner side surface of the backing plate can be affected.

In this embodiment, the electronic control module 6 is detachably fixed in the second 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 a power module and a source module. It can be understood that the display 22 and the backlight strip are electrically connected to the main control board; There is a motherboard fixing post (not shown), the main board fixing post is a screw hole column, and the main control board is provided with a screw through hole corresponding to the main board fixing post, and the screw passes through the screw through hole and is screwed into the screw hole of the main board fixing post, and The main control board is fixed in the second receiving space 14; of course, in other embodiments, the main control board can also be fixed in the second 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 second 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 second receiving space 14 , and the plugging port is disposed on the bottom wall of the second receiving space 14 to have a larger plugging operation. The space is convenient for the user to use; and compared with the technical solution of disposing the plug port on the top wall of the second 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 second receiving space 14 The wall and the power socket are disposed on the other side wall of the second receiving space 14. Thus, the classification of the plug port is realized, which is more convenient for the user to use.

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

A liquid crystal display device, comprising:

a housing having a first receiving space that is open toward the front, and the housing includes a backing plate for forming a bottom of the first receiving space, and the inner side of the backing plate is formed to be partially outward An extended second receiving space;

a display module, the display module includes a display screen and an optical film set, and the display module is mounted in the first receiving space;

The electronic control module is mounted on the bottom of the second receiving space.
The liquid crystal display device of claim 1, wherein the second receiving space is formed by partially arching the backing plate outward.
The liquid crystal display device according to claim 1, wherein the upper cover of the receiving opening of the second receiving space is provided with a cover.
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 second 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.
The liquid crystal display device of claim 3, wherein the cover is detachably coupled to the back plate.
The liquid crystal display device of claim 3, wherein the cover is a plastic plate.
The liquid crystal display device according to claim 2, wherein the receiving opening of the second receiving space is provided with a cover.
The liquid crystal display device of claim 7, 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 second 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.
The liquid crystal display device of claim 7, wherein the cover is detachably coupled to the back plate.
The liquid crystal display device of claim 7, wherein the cover is a plastic plate.
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 second receiving space.
The liquid crystal display device of claim 11, wherein the electronic control module is detachably fixed in the second receiving space.
The liquid crystal display device of claim 12, wherein the second receiving space 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, the plugging The port is used for connecting an external connection line to the electronic control module.
The liquid crystal display device of claim 13, wherein the second receiving space has a depth ranging from 25 mm to 30 mm.
The liquid crystal display device according to claim 2, 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 second receiving space.
The liquid crystal display device according to claim 3, 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 second receiving space.
The liquid crystal display device according to claim 4, 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 second receiving space.
The liquid crystal display device according to claim 5, 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 second receiving space.
The liquid crystal display device according to claim 6, 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 second receiving space.