CN215495844U

CN215495844U - Can dismantle circuit module's liquid crystal display

Info

Publication number: CN215495844U
Application number: CN202122151427.XU
Authority: CN
Inventors: 钱俊; 谢铭慧
Original assignee: Shenzhen Yishi Technology Co ltd
Current assignee: Shenzhen Yishi Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-11
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a liquid crystal display screen of a detachable circuit module, which comprises the liquid crystal display screen of the detachable circuit module and comprises: the liquid crystal display comprises a back plate, a display screen module with a liquid crystal panel and a face frame, wherein the back plate is provided with an opening, and the periphery of the opening is provided with a step part which is recessed from the outer side surface of the back plate; the mounting plate is detachably fixed on the step part through a threaded fastener, and the back surface of the mounting plate is flush with the outer side surface of the back plate; a plurality of circuit modules are mounted on the front surface of the mounting plate. According to the utility model, the opening and the step part are arranged on the back plate, each circuit module is arranged on the mounting plate matched with the opening in shape, and the mounting plate is detachably connected to the step part through the screw, so that the waterproof and dustproof effects are realized in the sealing structure of the machine body internally arranged in each circuit module; the surface of the machine body is flat and has no protrusion, so that the thickness of the whole machine is reduced, and a condensation-proof water layer is convenient to install on a vehicle. The circuit modules can be exchanged between the machine and products of different models only by disassembling the mounting plate.

Description

Can dismantle circuit module's liquid crystal display

Technical Field

The utility model relates to the technical field of liquid crystal display, in particular to a liquid crystal display screen with a detachable circuit module.

Background

Current liquid crystal display module usually includes the multilayer plate that sets up backward from the past: the liquid crystal display (i.e. the panel, and also can be provided with at least one diffusion sheet, prism sheet, light guide plate, reflection sheet or LED light bar) front partition, the back panel, and the fixing and buffering structures thereof, etc. Wherein, circuit modules such as mainboard, PCBA constant current board and Tcon board usually set up in the surface-mounted electrical apparatus box of backplate, and this kind of arrangement has brought the following problem: the functional module and the electrical box thereof are arranged on the outer surface of the back plate, so that the thickness of the whole machine body of the display screen is large, the machine body has a bulge, and when the functional module and the electrical box are installed on the bulkhead of a public transport means such as a bus or a subway, the protective layer for preventing the condensed water from permeating into the machine body is not beneficial to being installed on the whole body. In addition, the circuit modules are separately and independently installed on the outer surface of the back plate, so that the defects of time and labor waste and inconvenience in maintenance and upgrading due to integral replacement or exchange between the circuit modules and different models of products exist.

Therefore, the electrical apparatus box of current liquid crystal display module arranges in the backplate surface, leads to the great and fuselage of complete machine thickness to have the arch, is unfavorable for installing the inoxidizing coating that is used for preventing the comdenstion water internal infiltration additional to it when installing on public transport to and maintain the inconvenient technical problem that this field is waited for to solve of upgrading.

SUMMERY OF THE UTILITY MODEL

The utility model provides a liquid crystal display screen with a detachable circuit module, aiming at solving the technical problems that the thickness of the whole liquid crystal display screen module is larger, a bulge exists on the machine body, a protective layer for preventing internal leakage of condensed water is not beneficial to being additionally arranged on a public transport means when the liquid crystal display screen module is arranged on the public transport means, and the liquid crystal display screen is inconvenient to maintain and upgrade.

In order to solve the problem, the utility model adopts the technical scheme that: there is provided a liquid crystal display panel having a detachable circuit module, including: the liquid crystal display comprises a back plate, a display screen module with a liquid crystal panel and a face frame, wherein the back plate is provided with an opening, and the periphery of the opening is provided with a step part which is recessed from the outer side surface of the back plate;

the mounting plate is detachably fixed on the step part through a threaded fastener, and the back surface of the mounting plate is flush with the outer side surface of the back plate;

a plurality of circuit modules are mounted on the front surface of the mounting plate.

Preferably, a waterproof layer is attached to the step portion, and the mounting plate is fixed to the step portion by a screw passing through the waterproof layer.

Preferably, the mounting plate is bonded to the opening by a waterproof sealant.

Preferably, the plurality of modules comprises a motherboard, a PCBA constant flow plate and a Tcon plate.

Preferably, the modules are connected with the back plate through positioning columns.

Preferably, the mounting plate is provided with at least one heat dissipation aperture, which mounts an insert with a heat dissipation port.

Furthermore, a pair of connecting portions bent towards one side are correspondingly arranged at two ends of the back plate respectively, two ends of the face frame are correspondingly abutted against the inner sides of the connecting portions respectively, and two ends of the display screen module are correspondingly abutted against the inner sides of two ends of the face frame respectively.

Preferably, the other pair of side edges of the back plate are respectively and correspondingly provided with a pair of folded edges for connecting the connecting parts.

Preferably, a plurality of screws pass through face frame, connecting portion back screw in display screen module in proper order.

Preferably, the display screen module includes: a liquid crystal panel and at least one layer of functional plate.

Preferably, the functional board comprises: a diffusion sheet, a prism sheet, a light guide plate, or a reflection sheet.

Compared with the prior art, the liquid crystal display screen provided by the utility model has the beneficial effects that:

according to the utility model, the opening and the step part are arranged on the back plate, each circuit module is arranged on the mounting plate matched with the opening in shape, and the mounting plate is detachably connected to the step part through the screw, so that the waterproof and dustproof effects are realized in the sealing structure of the machine body internally arranged in each circuit module; the surface of the machine body is flat and has no protrusion, so that the thickness of the whole machine is reduced, and a condensation-proof water layer is convenient to install on a vehicle. In addition, the circuit module of the machine can be quickly replaced only by integrally disassembling the mounting plate with the circuit module and assembling another mounting plate which is pre-assembled with different circuit module configurations; only need unified opening, step portion and installation plate size standard between the different model products, can realize the quick exchange of mounting panel and circuit module between this machine and the different model products, need not to change respectively alone, every circuit module of dismouting, realizes that each circuit module concentrates, unified maintenance upgrading, simple operation, with low costs.

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 or the prior art descriptions 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 to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a first schematic view of an assembly structure of an embodiment of a liquid crystal display panel provided by the present invention;

FIG. 2 is a second schematic view of an assembly structure of an embodiment of a liquid crystal display panel according to the present invention;

FIG. 3 is a first schematic diagram illustrating an exploded view of an embodiment of a liquid crystal display panel according to the present invention;

fig. 4 is a schematic diagram of an explosion structure of an embodiment of a liquid crystal display panel according to the present invention.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a back plate; 11-opening; 12-a step portion; 13-lateral side; 14-a connecting portion; 15-folding edges; 2-face frame; 3, mounting a plate; 31-heat dissipation holes; 32-back side; 33-front side; 4-a circuit module; 5-a positioning column; 6-an insert; 7-a through hole; 8, a display screen module; 9-screw.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The utility model is described in further detail below with reference to the accompanying figures 1-4 and examples.

Referring to fig. 1-4, the liquid crystal display panel of the detachable circuit module according to the present invention includes a back plate disposed from back to front, a display module with a liquid crystal panel, and a surface frame disposed between the back plate and the display module for wrapping and protecting the display module. As the preferred embodiment, the back plate, the display screen module and the face frame are all rectangular.

In this embodiment, the display screen module is a plate body formed by combining a plurality of modules, and includes a plate body shell, and a liquid crystal panel and at least one layer of functional plate block arranged inside the plate body shell. In a preferred embodiment, the display panel module includes a plurality of functional plates, such as a liquid crystal panel, a diffusion sheet, a prism sheet, a light guide plate, and a reflection sheet, disposed in a front-to-back direction inside the panel housing.

Referring to fig. 1 and 3-4, in the present embodiment, the back surface of the display screen module is a back plate, the back plate is provided with an opening, and a step portion recessed from an outer side surface of the back plate is disposed on a periphery of the opening. In a preferred embodiment, the opening is rectangular. The mounting plate is detachably fixed on the step part through a threaded fastener, and the back surface of the mounting plate is flush with the outer side surface of the back plate. The threaded fastener in this embodiment may be a screw, a bolt, or the like.

In a more preferred embodiment, a waterproof layer (not shown) is attached to the step portion, and the mounting plate is fixed to the step portion by screws passing through the waterproof layer. The waterproof layer in this embodiment may be a waterproof pad made of waterproof plastic, rubber, or a composite thereof. In a more preferred embodiment, each side end of the mounting plate is adhered to each side end of the opening by a waterproof sealant.

In this embodiment, a plurality of circuit modules are mounted on the front surface (the surface facing the display screen module) of the mounting board, each circuit module has a circuit board and can realize a specific function, and the circuit board of each module is connected with other circuit boards of the display screen module through a communication circuit. In one embodiment, the plurality of circuit modules includes a motherboard, a PCBA constant current board, and a Tcon board. As the preferred embodiment, a plurality of circuit modules are connected with the back plate through the positioning columns and the positioning holes, so that the connecting structure is simple, and the assembly and disassembly are convenient. The positioning column can be arranged on the back side (heat radiating surface) of the circuit board of the circuit module, and the positioning hole (blind hole) is arranged on the front side of the mounting plate; the positioning column can also be arranged on the front surface of the mounting plate, and the positioning hole is arranged on the circuit board of the circuit module.

The utility model cancels an electrical appliance mounting box structure arranged on the outer surface of the back plate, the back plate is provided with an opening and steps around the opening, the circuit board of each circuit module is arranged on the front surface of the mounting plate matched with the shape of the opening, the mounting plate is detachably connected to the steps around the opening through screws, a waterproof layer is arranged between the steps and the mounting plate, and waterproof sealant is filled between the side wall of the periphery of the opening and the side wall of the periphery of the mounting plate for bonding, so that each circuit module is embedded in the sealing structure of the main body of the liquid crystal display, the waterproof and dustproof protection of each circuit module is improved, and meanwhile, the flat and non-protruding structure of the surface of the main body is maintained, thereby reducing the whole thickness of the liquid crystal display, and when the liquid crystal display is arranged on a public transport vehicle, a protective layer for preventing the internal permeation of condensed water is conveniently arranged on the liquid crystal display. In addition, the circuit module of the machine can be quickly replaced only by integrally disassembling the mounting plate with the circuit module and assembling another mounting plate which is pre-assembled with different circuit module configurations; only need unified above opening, step portion and the size standard of installation board between the different model liquid crystal display products, can realize the quick exchange of mounting panel and circuit module between this machine and the different model products, need not to change respectively alone, every circuit module of dismouting, realizes that each circuit module concentrates, unified maintenance upgrading, simple operation, with low costs.

In this embodiment, still include locate the accommodation space that encloses between display screen module and the backplate, LED lamp strip and fixed and buffer structure (not shown in the figure), the LED lamp strip of PCBA constant current board and the inlayer of backplate is connected electrically. In a preferred embodiment, the mounting plate and the back plate are made of metal materials with electromagnetic shielding performance, and the mounting plate and the back plate form a metal shielding plate, so that electromagnetic shielding in a certain direction can be provided for the modules, and the influence of electromagnetic interference on each circuit module on the normal operation of the display screen module is reduced. As an embodiment, when the liquid crystal display screen does not consider the waterproof and dustproof performance, at least one heat dissipation hole is arranged on the mounting plate, and an insert with the heat dissipation hole is arranged on the heat dissipation hole.

In this embodiment, a pair of connecting portions bent toward one side of the display screen module is correspondingly disposed at two ends of the back plate, and the connecting portions are preferably folding plates perpendicular to the main body of the back plate. Two sides of the face frame are respectively corresponding to the inner side surfaces of the connecting parts in a butt joint mode, and two sides of the display screen module are respectively corresponding to the inner side surfaces of the two sides of the face frame in a butt joint mode. The other pair of side edges of the back plate are respectively and correspondingly provided with a pair of folding edges for connecting the connecting parts, and the pair of folding edges and the pair of connecting parts are connected into a frame which is bent from the main body of the back plate to one side of the display screen module.

As an embodiment, a plurality of screws penetrate through the through holes of the face frame and the connecting part in sequence and then are screwed into the display screen module, and the face frame and the folded edge are fixedly connected through the screws. As another embodiment, the face frame and the connecting part and the face frame and the folded edge are fixedly connected through a clamping structure.

The present invention is not limited to the above-described preferred embodiments, but rather, the present invention is intended to cover all modifications, equivalents, and improvements falling within the spirit and scope of the present invention.

Claims

1. A liquid crystal display panel having a detachable circuit module, comprising: the liquid crystal display comprises a back plate, a display screen module with a liquid crystal panel and a face frame, and is characterized in that the back plate is provided with an opening, and the periphery of the opening is provided with a step part which is recessed from the outer side surface of the back plate;

the front surface of the mounting plate is provided with a plurality of circuit modules.

2. The liquid crystal display panel of claim 1, wherein a waterproof layer is attached to the step portion, and the mounting plate is fixed to the step portion by a screw passing through the waterproof layer.

3. The liquid crystal display panel of claim 2, wherein the mounting plate is bonded to the opening by a waterproof sealant.

4. The liquid crystal display panel of claim 1, wherein the plurality of modules comprises a motherboard, a PCBA constant current board, and a Tcon board.

5. The liquid crystal display of claim 1, wherein the plurality of modules are connected to the back plate via positioning posts.

6. The liquid crystal display of claim 1, wherein the mounting plate is provided with at least one heat dissipation aperture fitted with an insert having a heat dissipation aperture.

7. The liquid crystal display panel according to any one of claims 1 to 6, wherein a pair of side edges of the back plate are respectively and correspondingly provided with a pair of connecting portions bent toward one side, two ends of the front frame are respectively and correspondingly abutted against the inner sides of the connecting portions, and two ends of the display panel module are respectively and correspondingly abutted against the inner sides of two ends of the front frame.

8. The liquid crystal display panel of claim 7, wherein the other pair of sides of the back plate are respectively provided with a pair of flanges connected to the connecting portions.

9. The liquid crystal display screen of claim 8, wherein a plurality of screws are screwed into the display screen module after sequentially passing through the face frame and the connecting portion.

10. The liquid crystal display of claim 7, wherein the display module comprises: the liquid crystal display panel comprises a liquid crystal panel, a diffusion sheet, a prism sheet, a light guide plate and a reflection sheet.