CN107105180B

CN107105180B - Borderless liquid crystal display television

Info

Publication number: CN107105180B
Application number: CN201710365184.5A
Authority: CN
Inventors: 王智勇; 周友根
Original assignee: Hefei Huike Jinyang Technology Co Ltd
Current assignee: Hefei Huike Jinyang Technology Co Ltd
Priority date: 2017-05-22
Filing date: 2017-05-22
Publication date: 2023-09-19
Anticipated expiration: 2037-05-22
Also published as: CN107105180A

Abstract

The invention provides a borderless liquid crystal television, which comprises: a back plate; the middle frame is arranged around the peripheral edge of the backboard, the middle frame is provided with a containing cavity with an opening facing the side edge of the backboard, and the edge of the backboard is embedded into the containing cavity; and one end of the mounting component extends into the accommodating cavity and is connected with the middle frame. According to the borderless liquid crystal television provided by the invention, through the design that the edge of the backboard is embedded into the middle frame and the design that one end of the installation component extends into the accommodating cavity and is connected with the middle frame, the technical problems of attractive appearance and high cost caused by the fact that the backboard and the middle frame of the borderless liquid crystal television are fixedly connected by adopting screws in the prior art are solved.

Description

Borderless liquid crystal display television

Technical Field

The invention belongs to the technical field of liquid crystal televisions, and particularly relates to a borderless liquid crystal television.

Background

The borderless liquid crystal television is characterized in that a face frame is not used for pressing a liquid crystal screen any more, and the liquid crystal screen is completely displayed in front of a user, so that a product is more high-grade and concise. The back plate used for supporting the weight of the whole liquid crystal television is a key component of the whole liquid crystal television. In the prior art, a metal backboard is generally adopted as a backboard of a liquid crystal television. Whereas existing metal backplates have the following disadvantages: firstly, the metal backboard needs to be provided with a plurality of reinforcing structures to increase the strength of the metal backboard, so that the flatness of the inner surface of the metal backboard can be influenced, and the appearance of the borderless liquid crystal television is not attractive; secondly, the metal backboard is generally fixed with the middle frame through screws, so that the gear of the liquid crystal display television is reduced to a certain extent, or a decorative rear cover is needed to cover the screws, so that the thickness of the liquid crystal display television is increased, and the cost of the liquid crystal display television is also increased. There is a case in the prior art that the metal back plate is replaced by a glass back plate for the first disadvantage of the metal back plate, but for the second disadvantage, no better solution has yet emerged.

Disclosure of Invention

The invention aims to provide a borderless liquid crystal television, which solves the technical problems of attractive appearance and high cost caused by the fact that a back plate and a middle frame of the borderless liquid crystal television are fixedly connected by bolts in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided a borderless liquid crystal television including:

a back plate;

the middle frame is arranged around the edge of the backboard, the middle frame is provided with a containing cavity with an opening facing the side edge of the backboard, and the edge of the backboard is embedded into the containing cavity;

the mounting assembly is mounted on the edge of the back plate, and one end of the mounting assembly stretches into the accommodating cavity and is connected with the middle frame.

Further, the mounting assembly comprises a mounting plate mounted on the edge of the back plate and at least one elastic piece arranged on the mounting plate, and one end of the elastic piece stretches into the accommodating cavity and is connected with the middle frame.

Further, one end of the elastic piece is provided with a convex part, a clamping piece is arranged in the accommodating cavity at a position corresponding to the convex part, and the clamping piece is clamped into the convex part to form clamping connection.

Further, the convex portion has a first introduction surface far from the back plate and a first discharge surface near to the back plate, the first introduction surface is disposed substantially parallel to the back plate, and the first discharge surface is disposed substantially perpendicular to the back plate.

Further, the clamping piece comprises a hook body matched with the convex part, and the hook body comprises a second leading-in surface parallel to the first leading-in surface and a second leading-out surface parallel to the first leading-out surface.

Further, a positioning column is convexly arranged on the mounting plate, a through hole is formed in the position, corresponding to the positioning column, of the elastic piece, and the through hole is sleeved on the positioning column to form positioning; the end part of the positioning column is provided with a limiting edge used for limiting the elastic piece to axially move, a counter bore is arranged at the position of the through hole corresponding to the limiting edge, and the limiting edge is accommodated in the counter bore.

Further, the mounting plate is further provided with a vertical limiting part for preventing the other end of the elastic piece from tilting and a horizontal limiting part for preventing the other end of the elastic piece from horizontally moving.

Further, the borderless liquid crystal television further comprises a reflector plate arranged on the backboard, a light guide plate arranged on the reflector plate, and an optical die arranged on the light guide plate; the edges of the reflecting plate, the light guide plate and the optical sheet are embedded into the accommodating cavity.

Further, a folded plate for limiting the optical film is arranged on one side of the mounting plate, which faces the direction of the optical film, a hanging lug is arranged on the optical film, and the hanging lug is sleeved on the folded plate to form limiting.

Preferably, the back plate is a tempered glass plate.

The borderless liquid crystal television provided by the invention has the beneficial effects that: compared with the prior art, the borderless liquid crystal television has the advantages that the middle frame is arranged around the peripheral edge of the backboard, the middle frame is provided with the accommodating cavity with the opening facing the side edge of the backboard, and then the edge of the backboard is embedded into the accommodating cavity, so that the edge of the backboard can be embedded into the middle frame to form installation, the edge of the backboard cannot be exposed, and the phenomenon that the appearance is influenced due to errors in processing the edge of the backboard is prevented. In addition, through the design of installation component, and installation component's one end stretches into and holds the chamber and be connected with the center for backplate and center do not need through the fix with screw, simultaneously, installation component is accomplished in holding the chamber with the connection of center, thereby makes the outward appearance of center and backplate level and smooth, pleasing to the eye.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an exploded schematic view of a borderless lcd tv according to an embodiment of the present invention;

fig. 2 is a schematic front view of a borderless lcd tv according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of B-B in FIG. 2;

FIG. 5 is an enlarged view of a portion of the portion C of FIG. 3;

FIG. 6 is a partial enlarged view of part D of FIG. 4;

FIG. 7 is a schematic view of the mounting assembly of FIG. 1;

FIG. 8 is a schematic view of the mounting plate of FIG. 7;

FIG. 9 is a schematic view of the elastic member in FIG. 7;

fig. 10 is a schematic structural view of the metal mounting plate of fig. 1.

Wherein, each reference sign in the figure:

1-liquid crystal glass; 2-a diaphragm pressing strip; 3-a middle frame; 4-an optical film; 5-a light guide plate; 6-a reflector; 7-mounting an assembly; 8-a back plate; 9-a metal fixing piece; 10-radiating fins; 11-face frame adaptor; 12-face frame; 13-buffering foam; 14-double faced adhesive tape foam; 30-a receiving cavity; 31-clamping piece; 311-connecting plates; 312-hook body; 3121—a second lead-in face; 3122-a second lead-out face; 32-top plate; 33-a first side plate; 34-a second side panel; 340-groove; 35-flanges; 41-hanging lugs; 71-a mounting plate; 710-mounting holes; 711-positioning columns; 712-vertical limit; 7120-an accommodating groove; 7121-a first baffle; 713-a horizontal stop; 7130-limit groove; 714-pass slot; 715-sinking plate; 716-a flap; 72-elastic member; 720-through holes; 7200-countersunk holes; 721-a protrusion; 7211-a first lead-in face; 7212-a first lead-out face; 722-mounting end; 723-a clamping end; 724-a second baffle; 725-transition plate; 726-limiting block; 727-an elastic member main body; 91-studs; 92-threaded hole.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the 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 for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 3 and fig. 5, a description will be given of a borderless lcd tv according to the present invention. The borderless liquid crystal television comprises a back plate 8, a middle frame 3 and a mounting component 7, wherein the back plate 8 is a long thin plate and comprises an inner side and an outer side (namely the right side and the left side of the back plate 8 in fig. 5) which are oppositely arranged, the middle frame 3 is made of aluminum profiles, the heat dissipation effect is good, the middle frame 3 is arranged around the peripheral edge of the back plate 8, the middle frame 3 is provided with a containing cavity 30 with an opening facing the side edge of the back plate 8, the edge of the back plate 8 is embedded into the containing cavity 30, the mounting component 7 is mounted on the edge of the back plate 8, one end of the mounting component 7 extends into the containing cavity 30 and is connected with the middle frame 3, and particularly, the mounting component 7 is connected with the middle frame 3 through double-sided foam glue 14 which is stuck on the inner side of the back plate 8 (namely the right side of the back plate 8 in fig. 5). During installation, the installation component 7 is firstly stuck on the inner side of the back plate 8 through the double-sided foam glue 14, then the peripheral edge of the back plate 8 is embedded into the accommodating cavity 30 of the middle frame 3, and finally one end of the installation component 7 extends into the accommodating cavity 30 and is connected with the middle frame 3, so that the back plate 8 is installed on the middle frame 3.

Compared with the prior art, the borderless liquid crystal television provided by the invention has the advantages that the middle frame 3 is arranged around the edge of the backboard 8, the middle frame 3 is provided with the accommodating cavity 30 with the opening facing the backboard 8, and then the edge of the backboard 8 is embedded into the accommodating cavity 30, so that the edge of the backboard 8 can be embedded into the middle frame 3 to form installation, the edge of the backboard 8 is not exposed, the phenomenon that the appearance is influenced due to the error in processing the edge of the backboard 8 is prevented, and the risk that other structures of the borderless liquid crystal television fall off from the backboard 8 due to the ageing of the double-sided foam rubber 14 is avoided. In addition, through the design of the installation component 7, and the one end of installation component 7 stretches into and holds the chamber 30 and be connected with the center 3 for backplate 8 and center 3 need not pass through the screw fixation, simultaneously, the connection of installation component 7 and center 3 is accomplished in holding the chamber 30, thereby makes the outward appearance of center 3 and backplate 8 level and smooth, pleasing to the eye.

Preferably, as a specific embodiment of the borderless liquid crystal television provided by the invention, the back plate 8 is preferably a toughened glass plate, the back plate 8 is made of the toughened glass plate, the processing technology is simple, only simple edging processing is needed, and a complex die is not needed to be manufactured for molding like a metal back plate, so that the production cost of the back plate 8 is greatly reduced, and in addition, the toughened glass has strong corrosion resistance, so that the performance of the whole borderless liquid crystal television is improved. In this embodiment, when the back plate 8 is installed, firstly, the buffer foam 13 needs to be adhered to the periphery of the back plate 8, and the buffer foam 13 is arranged around the back plate 8 and can be used for bearing the impact force from the middle frame 3 to the back plate 8 during installation, so that the phenomenon of cracking caused by local stress around the toughened glass is prevented, and meanwhile, the problem of external leakage of internal light can be well solved because the buffer foam 13 is in close contact with the structure of the middle frame 3.

Further, referring to fig. 1 and 2, as a specific embodiment of the borderless lcd tv provided by the present invention, the back plate 8 further includes an upper side and a lower side that are disposed opposite to each other, and a left side and a right side that are disposed opposite to each other, wherein specific positions of the upper side, the lower side, the left side and the right side refer to fig. 2, and the middle frame 3 is formed by sequentially and vertically connecting three frame plates, and a left side edge, a right side edge and an upper side edge of the back plate 8 are respectively embedded into the three frame plates. In this embodiment, referring to fig. 1, four mounting assemblies 7 are disposed on the upper side edge of the back plate 8, two mounting assemblies 7 are disposed on the left side edge and the right side edge of the back plate 8, and the distribution positions of the mounting assemblies 7 are uniform, so that the mounting between the back plate 8 and the middle frame 3 is firm; in addition, the installation components 7 are installed in a sectional mode, so that the position of each installation component 7 can be flexibly adjusted, and borderless liquid crystal televisions with different sizes can be compatible by increasing or reducing the use amount of the installation components 7, and therefore the universality of the installation components 7 is fully realized.

Further, referring to fig. 7, as a specific embodiment of the borderless lcd tv provided by the present invention, the mounting assembly 7 includes a mounting plate 71 and at least one elastic member 72, the mounting plate 71 is in a long plate shape, the mounting plate 71 is mounted on the edge of the back plate 8, specifically, the mounting plate 71 is adhered to the inner side of the back plate 8 through the double-sided foam adhesive tape 14, and the length extending direction of the mounting plate 71 is parallel to the extending direction of the back plate 8. The mounting assembly 7 includes two elastic members 72, the two elastic members 72 are respectively disposed at appropriate positions along the length direction of the mounting plate 71, and the two elastic members 72 are disposed on the same side of the mounting plate 71 as the double-sided foam adhesive 14 and are staggered with the double-sided foam adhesive 14, and one end of each elastic member 72 extends into the accommodating cavity 30 and is connected with the middle frame 3. The elastic members 72 are made of stainless steel material, and the connection reliability between the mounting assembly 7 and the center frame 3 is improved by providing two elastic members 72 on the elongated mounting plate 71 to be connected with the center frame 3. Of course, in other embodiments of the present invention, the structure of the mounting assembly 7 may be designed in other forms according to practical situations and specific requirements, and the mounting plate 71 may be provided with 3 or 4 elastic members 72, which is not limited only herein.

Further, referring to fig. 5, as a specific embodiment of the borderless lcd tv provided by the present invention, one end of the elastic member 72 has a protrusion 721, and a clamping member 31 is disposed in the accommodating cavity 30 at a position corresponding to the protrusion 721, and the clamping member 31 is clamped into the protrusion 721 to form a clamping connection. In this embodiment, the protrusion 721 protrudes to the outside of the back plate 8, referring to fig. 5, the middle frame 3 includes a top plate 32, a first side plate 33 and a second side plate 34 disposed adjacent to and opposite to the top plate 32, the first side plate 33 and the second side plate 34 enclose the accommodating cavity 30, and the clip 31 extends from the top plate 32 vertically to the opening of the accommodating cavity 30, and when mounted, the clip 31 is gradually snapped into the side of the protrusion 721 near the back plate 8 from the side of the protrusion 721 far from the back plate 8, thereby forming a snap-fit. Of course, in other embodiments of the present invention, the structures of the protrusion 721 and the clip 31 may be designed into other types according to specific situations and practical requirements, which are not limited herein.

Further, referring to fig. 5, as a specific embodiment of the borderless lcd tv provided by the present invention, the protrusion 721 has a first guiding surface 7211 far from the back plate 8 and a first guiding surface 7212 near to the back plate 8, the first guiding surface 7211 is disposed substantially parallel to the back plate 8, and the first guiding surface 7212 is disposed substantially perpendicular to the back plate 8. Specifically, the protrusion 721 has a tip-like structure, the first guide surface 7211 and the first guide surface 7212 are in contact with each other at the tip, and when the locking member 31 is mounted, the locking member 31 is guided between the protrusion 721 and the back plate 8 along the first guide surface 7211, and the locking member 31 is locked to the first guide surface 7212, thereby positioning the locking member. In this embodiment, the inclination angle of the first guiding-in surface 7211 is very small and is arranged approximately parallel to the back plate 8, so that the clamping piece 31 can be smoothly clamped into the protruding portion 721 along the first guiding-in surface 7211, and meanwhile, the inclination angle of the first guiding-out surface 7212 is very large and is approximately perpendicular to the back plate 8, so that after the clamping piece 31 is clamped into the protruding portion 721, the clamping piece 31 is difficult to guide out from the first guiding-out surface 7212, thereby preventing the middle frame 3 from being separated from the edge of the back plate 8, and further ensuring the connection between the back plate 8 and the middle frame 3. Of course, in other embodiments of the present invention, the specific structure of the protrusion 721 may be designed into other types according to actual situations and specific requirements, and the inclination angles of the first introducing surface 7211 and the first guiding surface 7212 may be limited according to specific situations, which is not limited only herein.

Further, referring to fig. 5, as a specific embodiment of the borderless lcd tv provided by the present invention, the clip 31 includes a connecting plate 311 and a hook 312 mated with the protrusion 721, the connecting plate 311 extends from the top plate 32 of the middle frame 3 vertically into the accommodating cavity 30, the hook 312 is disposed at an end of the connecting plate 311, the hook 312 protrudes toward the second side plate 34, and the hook 312 includes a second guiding-in surface 3121 disposed parallel to the first guiding-in surface 7211 and a second guiding-out surface 3122 disposed parallel to the first guiding-out surface 7212. Specifically, the hook 312 is also disposed in a tip shape, the second introducing surface 3121 is in contact with the second guiding surface 3122 at the tip, the second introducing surface 3121 is disposed away from the top plate 32, and the second guiding surface 3122 is disposed close to the top plate 32. During installation, the second guiding surface 3121 is pushed along the first guiding surface 7211 to clamp the clamping member 31 between the protruding portion 721 and the back plate 8, and then the second guiding surface 3122 of the clamping member 31 abuts against the first guiding surface 7212 of the protruding portion 721 under the action of elasticity, so that the clamping member 31 can be prevented from falling off from the protruding portion 721, and the fixed installation between the back plate 8 and the middle frame 3 is ensured. Of course, in other embodiments of the present invention, the specific structural design of the clip 31 may be designed into other types according to practical situations and specific requirements, which is not limited herein.

Further, referring to fig. 7 to 9, as a specific embodiment of the borderless lcd tv provided by the present invention, a positioning column 711 is protruding from a side of the mounting plate 71 near the back plate 8, a through hole 720 is provided at a position of the elastic member 72 corresponding to the positioning column 711, and the through hole 720 is sleeved on the positioning column 711 to form positioning; the end of the positioning column 711 is provided with a limiting edge (not shown in the figure) for limiting the axial movement of the elastic member 72, a counter-sunk hole 7200 is arranged at the position of the through hole 720 corresponding to the limiting edge, and the limiting edge is accommodated in the counter-sunk hole 7200. When in installation, the elastic piece 72 is sleeved on the positioning column 711, and the elastic piece 72 is propped against the position between the mounting plate 71 and the limiting edge, so that the elastic piece 72 is installed on the mounting plate 71. In this embodiment, the mounting plate 71 is further provided with a mounting hole 710, the mounting hole 710 penetrates through the mounting plate 71 and the positioning column 711, and when the elastic member 72 is sleeved on the positioning column 711, a tool can pass through the mounting hole 710 to expand the end of the positioning column 711 outwards to form a limit edge. In this embodiment, through the design of the limit edge and the counter bore 7200, the elastic member 72 not only can be mounted on the mounting plate 71, but also does not occupy the space outside the mounting plate 71 and the elastic member 72, so that the structure is compact and attractive.

Further, referring to fig. 7 to 9, as a specific embodiment of the borderless lcd tv provided by the present invention, the mounting plate 71 is further provided with a vertical limiting portion 712 for preventing the other end of the elastic member 72 from tilting and a horizontal limiting portion 713 for preventing the other end of the elastic member 72 from moving horizontally, in this embodiment, for convenience of description, one end of the elastic member 72 is provided with a clamping end 723, the other end of the elastic member 72 is provided with a mounting end 722, the vertical limiting portion 712 includes a receiving groove 7120 opened on the mounting plate 71 and a first baffle 7121 disposed above the receiving groove 7120, the receiving groove 7120 is disposed corresponding to the position of the mounting end 722 of the elastic member 72, the mounting end 722 of the elastic member 72 is provided with a second baffle 724 accommodated in the receiving groove 7120 and stopped at the first baffle 7121, the elastic member 72 further includes an elastic member main body 727 disposed between the mounting end 722 and the clamping end 723, the second baffle 724 is disposed parallel to the elastic member main body 727, a transition plate 725 is disposed between the second baffle 724 and the elastic member main body 727, and the transition plate 725 is disposed to extend from the receiving groove 7120 to the second baffle 714 through the transition plate 714, and the transition plate 714 is disposed between the transition plate and the transition plate 714. The horizontal limiting portion 713 includes a limiting groove 7130, the limiting groove 7130 is disposed on one side of the accommodating groove 7120 opposite to the passing groove 714, the limiting groove 7130 is communicated with the accommodating groove 7120, the width of the limiting groove 7130 is smaller than that of the accommodating groove 7120, a limiting block 726 is further disposed at the end of the second baffle 724, and the limiting block 726 extends into the limiting groove 7130 to form limiting.

Further, referring to fig. 7 to 9, as a specific embodiment of the borderless lcd tv provided by the present invention, the engaging end 723 of the mounting plate 71 corresponding to the elastic member 72 is further provided with a sinking plate 715, the sinking direction of the sinking plate 715 is opposite to the protruding direction of the protruding portion 721 on the elastic member 72, and by the design of the sinking plate 715, the engaging end 723 of the elastic member 72 has a certain elastic movement range, and when the engaging end 723 receives a strong external force, the sinking plate 715 can prevent the engaging end 723 from making a larger deformation, thereby ensuring that the elastic member 72 fails due to the external force.

Further, referring to fig. 1 to 6, as a specific embodiment of the borderless lcd tv provided by the present invention, the borderless lcd tv further includes a reflective plate 6 disposed on the back plate 8, a light guide plate 5 disposed on the reflective plate 6, and an optical film 4 disposed on the light guide plate 5; the edges of the reflector 6, the light guide 5 and the optical film 4 are embedded in the accommodating cavity 30, and the back plate 8, the reflector 6, the light guide 5 and the optical film 4 are stacked together and abutted between the first side plate 33 and the second side plate 34.

Further, referring to fig. 6, as a specific embodiment of the borderless lcd tv provided by the present invention, a folded plate 716 for limiting the optical film 4 is disposed on a side of the mounting plate 71 facing the direction of the optical film 4, the optical film 4 is provided with a hanging tab 41, and the hanging tab 41 is sleeved on the folded plate 716 to form a limit. To ensure the strength of the folded plate 716 and prevent the hanging tab 41 from falling off the folded plate 716, the second side plate 34 is provided with a groove 340 corresponding to the folded plate 716, and the end of the folded plate 716 is limited in the groove 340. During installation, the reflector 6, the light guide plate 5 and the optical film 4 are sequentially stacked on the back plate 8, the hanging lugs 41 of the optical module are sleeved on the folded plates 716 of the mounting plate 71, then the whole edges of the back plate 8, the reflector 6, the light guide plate 5 and the optical film 4 are embedded into the accommodating cavity 30 of the middle frame 3, and the folded plates 716 are limited in the grooves 340. In addition, in this embodiment, the optical film 4 is further provided with a film pressing strip 2 for pressing the optical film 4, and specifically, the film pressing strip 2 is disposed below the optical film 4.

Further, referring to fig. 1, 2, 5 and 6, as a specific embodiment of the borderless lcd tv provided by the present invention, the borderless lcd tv further includes a liquid crystal glass 1, the liquid crystal glass 1 is mounted on a side of the optical film 4 opposite to the light guide plate 5, a flange 35 for limiting the liquid crystal glass 1 is disposed at a position of the middle frame 3 corresponding to the liquid crystal glass 1, and the liquid crystal glass 1 is mounted on the flange 35 through a double-sided foam glue 14.

Further, referring to fig. 1, as a specific embodiment of the borderless lcd tv provided by the present invention, a heat sink 10 and an LED light bar are further disposed on the lower side of the back plate 8. In this embodiment, the heat sink 10 is attached to the outer side of the back plate 8 through the double-sided foam glue 14 and is tightly locked on the back plate 8 through the metal fixing plate 9, referring to fig. 10, the metal fixing plate 9 is provided with a stud 91, the positions of the back plate 8 and the heat sink 10 corresponding to the stud 91 are provided with a first through groove and a second through groove, the metal fixing plate 9 is attached to the inner side of the back plate 8, the stud 91 sequentially passes through the first through groove and the second through groove, and finally is locked through a screw; in addition, the metal fixing piece 9 further includes two screw holes 92, and the metal fixing piece 9 and the heat sink 10 are further locked by screws passing through the screw holes 92. The LED lamp strip is attached to the radiating fin 10 and is arranged opposite to the light incident side of the light guide plate 5, and the light emitted by the LED lamp is finally emitted to the liquid crystal glass 1 through the guidance of the light guide plate 5 and the treatment of the optical film 4.

Further, referring to fig. 1, as a specific embodiment of the borderless lcd tv provided by the present invention, a surface frame 12 is further provided on the lower side of the heat sink 10, and the heat sink 10, the light reflecting plate 6, the light guiding plate 5, the optical film 4 and the liquid crystal glass 1 are all embedded in the surface frame 12, and the surface frame 12 is mounted on the lower side of the heat sink 10 through a surface frame adaptor 11.

Further, as a specific embodiment of the borderless liquid crystal television provided by the invention, the assembly process of the borderless liquid crystal television is as follows: firstly, buffer foam 13 is attached to the periphery of a back plate 8, then an installation plate 71 provided with an elastic piece 72 is attached to the inner side edge of the back plate 8 through double-sided foam glue 14, then a radiating fin 10 is attached to the outer side of the back plate 8 through double-sided foam glue 14, then the radiating fin 10 is tightly locked on the back plate 8 through a metal fixing piece 9, then an LED lamp strip is attached to the radiating fin 10, a reflecting plate 6, a light guide plate 5 and an optical film 4 are sequentially stacked on the inner side of the back plate 8, then the edges of the back plate 8, the reflecting plate 6, the light guide plate 5 and the optical film are embedded in a middle frame 3, a film pressing strip 2 is pressed, then an upper frame adapter 11 is clamped, then liquid crystal glass 1 is attached to a baffle of the middle frame 3 through double-sided foam glue, and finally a face frame 12 is locked on the radiating fin 10 through the face frame adapter 11, so that the installation of the whole borderless liquid crystal television is completed.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The borderless liquid crystal television is characterized by comprising:

a back plate;

the middle frame is arranged around the peripheral edge of the backboard, the middle frame is provided with a containing cavity with an opening facing the side edge of the backboard, and the edge of the backboard is embedded into the containing cavity;

the mounting assembly is mounted at the edge of the backboard, and one end of the mounting assembly extends into the accommodating cavity and is connected with the middle frame;

the mounting assembly comprises a mounting plate mounted on the edge of the back plate and at least one elastic piece arranged on the mounting plate; the mounting plate is arranged on the inner side of the backboard;

the mounting plate is convexly provided with a positioning column, a through hole is formed in the position, corresponding to the positioning column, of the elastic piece, and the through hole is sleeved on the positioning column to form positioning; the end part of the positioning column is provided with a limiting edge used for limiting the elastic piece to axially move, a counter bore is arranged at the position of the through hole corresponding to the limiting edge, and the limiting edge is accommodated in the counter bore.

2. The borderless liquid crystal television of claim 1 wherein one end of the elastic member extends into the receiving chamber and is connected to the center frame.

3. The borderless liquid crystal television of claim 2 wherein one end of the elastic member has a protrusion, and a clip is disposed in the accommodating cavity at a position corresponding to the protrusion, and the clip is clipped into the protrusion to form a clipping connection.

4. The borderless liquid crystal television of claim 3 wherein the projection has a first lead-in surface distal from the back plate and a first lead-out surface proximal to the back plate, the first lead-in surface being disposed parallel to the back plate, the first lead-out surface being disposed perpendicular to the back plate.

5. The borderless liquid crystal television of claim 4 wherein the clip comprises a hook body mated with the protrusion, the hook body comprising a second lead-in surface disposed parallel to the first lead-in surface and a second lead-out surface disposed parallel to the first lead-out surface.

6. The borderless liquid crystal television of claim 2 wherein the mounting plate is further provided with a vertical limit part for preventing the other end of the elastic member from tilting and a horizontal limit part for preventing the other end of the elastic member from moving horizontally.

7. The borderless liquid crystal television of claim 2 further comprising a reflector plate disposed on the back plate, a light guide plate disposed on the reflector plate, and an optical film disposed on the light guide plate; the edges of the reflecting plate, the light guide plate and the optical film are embedded into the accommodating cavity.

8. The borderless liquid crystal television of claim 7 wherein a flap for limiting the optical film is provided on a side of the mounting plate facing the direction of the optical film, a hanger is provided on the optical film, and the hanger is sleeved on the flap to form a limit.

9. The borderless liquid crystal television of any of claims 1-8 wherein the back plate is a tempered glass plate.