CN213244183U

CN213244183U - Liquid crystal television and display screen thereof

Info

Publication number: CN213244183U
Application number: CN202022419651.8U
Authority: CN
Inventors: 胡进
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-05-18
Anticipated expiration: 2030-10-27

Abstract

The application relates to a liquid crystal television and a display screen thereof, wherein the display screen comprises liquid crystal glass, a frame body, a light homogenizing assembly, a back plate assembly and a backlight source. The frame body includes frame and the inside casing of dismantling the connection with the frame, and the inner wall of frame is equipped with the step portion, and liquid crystal glazing is connected with the step portion, dodging subassembly and inside casing connection, and the edge of dodging subassembly is adjacent with the step portion, and one side of dodging subassembly's liquid crystal glazing's dorsad is located to the backplate subassembly, and the backlight is connected with the backplate subassembly and is located the region that the inside casing encloses. Because liquid crystal glazing connects on the step portion of frame, even light subassembly connects the inside casing to even light subassembly's installation is comparatively stable, and even light subassembly is adjacent with the step portion, make the light that the backlight sent can not receive sheltering from of step portion as far as possible behind even light subassembly, show with transmitting to liquid crystal glazing more, thereby reduce liquid crystal glazing week side and do not show and the black border that forms, and then promote the visual effect of the narrow frame of display screen simultaneously maintaining structural stability.

Description

Liquid crystal television and display screen thereof

Technical Field

The application relates to the technical field of display, in particular to a liquid crystal television and a display screen thereof.

Background

In the display screen, liquid crystal glazing installs on the center, and diffuser plate, reflector plate and optics diaphragm all set up in the space that the center encloses, and the place that the center is used for installing liquid crystal glazing can produce the light that gets into liquid crystal glazing and shelter from, leads to the inevitable black limit of appearance of display screen. However, the large black edge may affect the overall visual effect of the display screen, and reduce the distance from the edge of the liquid crystal glass to the outer side of the middle frame, although the black edge may be reduced to some extent, this may affect the overall structural stability, and this way, the effect of reducing the black edge is limited.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a liquid crystal display television and a display screen thereof, and the black edge is reduced while the structural stability is maintained so as to realize the narrow-frame visual effect.

In one aspect, the present application provides a display screen, comprising:

the liquid crystal glass is provided with a light emergent surface;

the frame body comprises an outer frame and an inner frame detachably connected with the outer frame, a step part is arranged on the inner wall of the outer frame, and one side of the liquid crystal glass, which is back to the light emitting surface, is connected with the step part;

the edge of one side of the light uniformizing assembly, which is used for emitting light, is adjacent to one side of the outer surface, back to the outer frame, of the step part;

the back plate assembly is connected with the frame body and is positioned on one side of the light homogenizing assembly, which is back to the liquid crystal glass; and

the backlight source is connected with the back plate assembly and is positioned in an area enclosed by the inner frame.

In one embodiment, the inner wall of the outer frame is provided with a buckle, the outer wall of the inner frame is provided with a clamping groove, and when the inner frame is connected with the outer frame, the buckle extends into the clamping groove and is clamped with the side wall of the inner frame, which is provided with the clamping groove.

In one embodiment, the inner frame includes a top portion and a bottom portion disposed opposite to each other, the light uniformizing assembly includes a diffuser plate, an optical film, and a reflective member, an edge of a side of the diffuser plate facing away from the liquid crystal glass is connected to the top portion of the inner frame, a side wall of the diffuser plate is opposite to a side of the step portion facing away from the outer surface of the outer frame, the optical film covers at least a surface of the diffuser plate facing toward the liquid crystal glass, the reflective member is located between the diffuser plate and the backplate assembly, and the bottom portion of the inner frame is connected to the backplate assembly.

In one embodiment, the reflection component includes a first reflection sheet and a second reflection sheet, one side of the inner frame facing away from the outer frame is an inclined wall surface, the inclined wall surface extends towards one side where the outer frame is away from in the direction away from the liquid crystal glass, the first reflection sheet at least covers the inclined wall surface, the second reflection sheet covers the backlight source, the second reflection sheet is provided with a through hole, and a lamp bead of the backlight source penetrates through the through hole.

In one embodiment, the first reflection sheet is connected with the inclined wall surface of the inner frame through a double-sided adhesive tape, a gap is reserved between the edge of the first reflection sheet close to the second reflection sheet and the inclined wall surface to form a suspended portion, and the edge of the second reflection sheet is opposite to the suspended portion of the first reflection sheet.

In one embodiment, the first reflection sheet comprises a bent part, and the bent part is clamped between the top of the inner frame and one side of the diffusion plate, which faces away from the liquid crystal glass.

In one embodiment, the optical film includes a main body portion overlying the diffusion plate and a side portion connected to the main body portion and bent toward a side of the diffusion plate with respect to the main body portion.

In one embodiment, the outer side of the inner frame is connected with a limiting piece, a through hole is formed in the side portion of the optical membrane, and the limiting piece penetrates through the through hole and limits the optical membrane on the inner frame.

In one embodiment, the limiting piece comprises a first bending portion and a second bending portion which are connected in a bending mode, the bending direction of the first bending portion relative to the second bending portion faces to one side where the back plate assembly is located, an avoiding hole is formed in the side wall of the outer side of the inner frame, the avoiding hole is opposite to the position of the through hole, and the second bending portion penetrates through the through hole and is located in the avoiding hole.

In one embodiment, an accommodating groove is formed on the outer side of the inner frame, and the first bending portion is located in the accommodating groove.

In one embodiment, the back plate assembly comprises a first back plate and a second back plate, and the second back plate is overlapped on one side of the first back plate facing the liquid crystal glass.

In one embodiment, the bottom of the inner frame is provided with a first abutting protrusion and a second abutting protrusion, the second abutting protrusion abuts against the second back plate, the first abutting protrusion abuts against the first back plate and forms a gap between the bottom of the inner frame and the first back plate, and the gap is used for filling a rubber material to bond the first back plate to the bottom of the inner frame.

In one embodiment, a groove is formed in the bottom corresponding to the gap, and when the gap is filled with a rubber material, a part of the rubber material is embedded in the groove.

In one embodiment, the edge of the first back plate forms an abutment against the outside of the inner frame.

In one embodiment, the bottom of the inner frame is provided with a clearance groove, and the clearance groove is located between the first abutting protrusion and the second abutting protrusion and is used for accommodating the end of the second back plate.

In another aspect, the present application provides a liquid crystal television, including the above display screen.

The utility model provides a LCD TV and display screen thereof, this display screen connects liquid crystal glazing on the step portion of frame, dodging subassembly is connected at the inside casing, in order to ensure dodging subassembly's installation stability, dodging subassembly is adjacent with the step portion, make the light that the backlight sent can not receive sheltering from of step portion as far as possible behind the dodging subassembly, show in order to conduct liquid crystal glazing more, thereby reduce liquid crystal glazing week side and do not show and the black edge that forms, and then the visual effect of the narrow frame of display screen is promoted simultaneously maintaining structural stability.

Drawings

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

FIG. 1 is a schematic diagram illustrating a partial structure of a cross-sectional position of a display screen according to an embodiment;

FIG. 2 is a schematic diagram illustrating a partial structure of another cross-sectional position of a display screen according to an embodiment;

FIG. 3 is an exploded view of the inner and outer frames of the display screen shown in FIG. 2;

fig. 4 is a partial sectional view of the inner frame and the outer frame shown in fig. 3 in a combined state at a joint;

FIG. 5 is a schematic view illustrating an assembly of a position-limiting piece and an inner frame of the display screen according to an embodiment;

FIG. 6 is a view showing the assembling state of the limiting plate and the inner frame of the display screen shown in FIG. 5;

FIG. 7 is a schematic structural diagram of a backplane assembly of a display screen according to an embodiment;

FIG. 8 is a schematic view of an installation structure of the back plate assembly and the inner frame of the display panel according to the embodiment, showing the installation positions of the backlight source and the reflection component;

FIG. 9 is a schematic view illustrating an installation structure of a diffuser plate and an inner frame of the display panel according to an embodiment;

FIG. 10 is a partial block diagram of yet another cross-sectional location of a display screen according to an exemplary embodiment;

fig. 11 is a schematic view of a portion of the display panel shown in fig. 10 with the liquid crystal glass and the outer frame removed.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, the present application provides a display screen 10, which can be mounted on a liquid crystal television for displaying. It can also be connected with a computer host to be used as a display. The application scenario of the display screen 10 is not limited here.

The display screen 10 includes a frame, a light uniformizing assembly, a back plate assembly 13, a backlight 14, and a liquid crystal glass 18. The frame body comprises an outer frame 11 and an inner frame 12 detachably connected with the outer frame 11. The liquid crystal glass 18 has a light emitting surface 181, and the light emitting surface 181 is the surface of the liquid crystal glass 18 on the light emitting display side. The inner wall 102 of the outer frame 11 is provided with a step part 11a, the side of the liquid crystal glass 18 facing away from the light emitting surface 181 is connected with the step part 11a, and the light homogenizing assembly is connected with the inner frame 12, so that the light homogenizing assembly can be stably installed on the outer frame 11 by using the inner frame 12.

The edge of the side of the dodging member to emit light is adjacent to the side 11b of the step portion 11a facing away from the outer surface 101 of the outer frame 11. It should be particularly noted that the edge of the side of the dodging assembly used for emitting the light ray refers to the edge of the side of the dodging assembly close to the liquid crystal glass 18, so that the side of the light ray emitted by the dodging assembly is parallel to the position of the step portion 11a, the probability that the light ray conducted by the dodging assembly is shielded by the step portion 11a is reduced, the light ray is conducted to the liquid crystal glass 18 for displaying more, the black edge on the peripheral side of the liquid crystal glass 18 is reduced, and the visual effect of the narrow frame of the display screen 10 is improved while the structural stability is maintained.

The liquid crystal glass 18 may be connected to the step portion 11a by an optical adhesive. The side of the stepped part 11a, which is used for being connected with the liquid crystal glass 18, is provided with a glue fixing groove 18a, so that when optical glue is adopted to bond the liquid crystal glass 18 on the stepped part 11a, the glue fixing groove 18a can be utilized to improve the bonding stability.

The back plate assembly 13 is connected with the frame body, the back plate assembly 13 is positioned on one side of the dodging assembly, which faces away from the liquid crystal glass 18, and the backlight source 14 is connected with the back plate assembly 13 and positioned in an area enclosed by the inner frame 12. In this embodiment, the back plate assembly 13 and the liquid crystal glass 18 are respectively connected to two sides of the frame body, so as to enclose and form an installation space, the light uniformizing assembly and the backlight source 14 are installed in the installation space, and the back plate assembly 13 can play a better protection effect, so as to prevent internal devices of the display screen 10 from being damaged.

As shown in fig. 2 and 3, the detachable connection between the outer frame 11 and the inner frame 12 may be a snap connection, which is simple and occupies a small space, and the inner frame 12 and the outer frame 11 are also convenient to detach. Since the light homogenizing assembly is connected with the inner frame 12, when the display screen 10 needs to be maintained, the inner structure can be maintained only by detaching the backboard assembly 13 and detaching the inner frame 12 from the outer frame 11.

Specifically, the inner wall 102 of the outer frame 11 is provided with a buckle 111, the inner wall 102 of the outer frame 11 is a side wall facing the side of the inner frame 12, and the inner wall 102 also faces away from the outer surface 101 of the outer frame 11. A clamping groove C is formed in one side wall of the inner frame 12 opposite to the outer frame 11, namely the outer wall of the inner frame 12. As shown in fig. 4, when the inner frame 12 is connected to the outer frame 11, the fastener 111 extends into the fastening groove C and is fastened to the side wall of the inner frame 12, which is provided with the fastening groove C.

Referring again to fig. 1, for further explanation of the structure of display screen 10, the side of inner frame 12 closer to liquid crystal glass 18 is referred to as the "top", and correspondingly, the side of inner frame 12 farther from liquid crystal glass 18 is referred to as the "bottom", i.e., inner frame 12 includes a top and a bottom that are oppositely disposed.

As shown in fig. 7, the backplane assembly 13 includes a first backplane 131 and a second backplane 132. The second back plate 132 is stacked on the side of the first back plate 131 facing the liquid crystal glass 18. By adopting the structure form, the backboard component 13 can meet the requirement of structural strength and the requirement of attractive appearance. For example, the first back plate 131 is made of a composite plate material to obtain a better appearance texture, and the second back plate 132 is made of an electro-galvanized steel plate to make the overall structural strength of the back plate assembly 13 higher so as to form a good protection for the devices inside the display screen 10.

The first back plate 131 and the second back plate 132 may be connected by an adhesive layer 13a, so that the first back plate 131 and the second back plate 132 are integrated by the adhesive layer 13a, and the two are integrally mounted to the frame body, thereby improving the mounting convenience. The adhesive layer 13a may be formed by curing glue adhered between the first back plate 131 and the second back plate 132, or may be a double-sided adhesive material, and the structural form of the adhesive layer 13a is not limited herein as long as it can meet the requirement of connection between the first back plate 131 and the second back plate 132.

In some embodiments, the thickness of the first back plate 131 may be 0.7mm to 0.9mm, such as 0.7mm, 0.8mm, or 0.9 mm. The thickness of the second back plate 132 may be 0.5mm to 0.8mm, such as 0.6mm, 0.7mm, or 0.8 mm. Thus, the thickness of the second back plate 132 overlapping the first back plate 131 is not too thick, which results in a heavy display screen 10, and is not too thin, which has insufficient strength and is easy to deform. And the second back plate 132 can be formed at such a thickness without using large-tonnage processing equipment.

As shown in fig. 8, the bottom of the inner frame 12 is provided with a first abutting protrusion 123 and a second abutting protrusion 124.

The first abutting protrusions 123 abut against the first back plate 131, so that a gap 123a is formed between the bottom of the inner frame 12 and the first back plate 131, and the gap 123a is used for filling the adhesive material to bond the first back plate 131 to the bottom of the inner frame 12, so that the gap 123a provides enough space for the adhesive material, thereby increasing the filling amount of the adhesive material to increase the connection stability between the inner frame 12 and the second back plate 132.

The second supporting protrusion 124 supports against the second back plate 132. Because the bottom of the inner frame 12 is connected to the first back plate 131 through the adhesive material filled in the gap 123a, the second back plate 132 is not easily tilted from the second back plate 132 under the abutting of the second abutting protrusion 124, so that the second back plate 132 forms a stable support for the backlight 14, and the influence of deformation of the backlight 14 on the overall display effect of the display screen 10 is reduced.

The bottom of the inner frame 12 is provided with a groove 12a at a position corresponding to the gap 123 a. When the gap 123a is filled with the adhesive material, a part of the structure of the adhesive material is embedded in the groove 12a, so that the connection stability between the first back plate 131 and the inner frame 12 is enhanced.

As shown in fig. 8, an abutting portion 131a is formed at an edge of the first back plate 131, and the abutting portion 131a abuts against an outer side of the inner frame 12, so that the first back plate 131 can be quickly mounted and positioned to the inner frame 12 by using the abutting portion 131a, and the first back plate 131 is not easily displaced relative to the inner frame 12, thereby improving the assembly efficiency and the structural stability.

The bottom of the inner frame 12 is provided with a clearance groove 124a, and the clearance groove 124a is located between the first abutting protrusion 123 and the second abutting protrusion 124 and is used for accommodating the end 132a of the second back plate 132, so as to avoid interference between the bottom of the inner frame 12 and the second back plate 132 and effectively improve the installation stability of the second back plate 132.

As shown in fig. 8 and 9, the dodging assembly includes a reflection member 15, a diffusion plate 16, and an optical film 17. The edge of the diffuser plate 16 on the side facing away from the liquid crystal glass 18 is connected to the top of the inner frame 12. The diffusion plate 16 has a side wall facing a side 11b of the stepped portion 11a facing away from the outer surface 101 of the outer frame 11.

The optical film 17 covers at least one surface of the diffusion plate 16 facing the liquid crystal glass 18, the reflection member 15 is located between the diffusion plate 16 and the back plate assembly 13, and the bottom of the inner frame 12 is connected to the back plate assembly 13.

In this embodiment, the diffusion plate 16 is attached to the top of the inner frame 12 so that the diffusion plate 16 is opposed to the step part 11a with the support of the inner frame 12, so that the reflection member 15 covering the surface of the diffusion plate 16 can inject light to the liquid crystal glass 18 as much as possible widthwise to reduce the black edge of the liquid crystal glass 18.

As shown in fig. 8 and 9, the side of the inner frame 12 facing away from the outer frame 11 is an inclined wall 121. In the direction away from the liquid crystal glass 18, the inclined wall surface 121 extends toward the side away from the outer frame 11, that is, the wall surface inside the inner frame 12 is inclined to form a bell mouth shape facing the liquid crystal glass 18, and the light emitted from the backlight 14 inside the inner frame 12 has a certain scattering angle, so that the light emitted from the backlight 14 can be greatly reflected to the liquid crystal glass 18 through the reflection member 15.

In this embodiment, the reflection member 15 includes a first reflection sheet 151 and a second reflection sheet 152, and the first reflection sheet 151 covers at least the inclined wall surface 121, so that the light emitted from the backlight 14 is reflected to the liquid crystal glass 18 through the inclined first reflection sheet. The second reflective sheet 152 covers the backlight 14, and the second reflective sheet 152 is provided with a through hole 152a, and the bead 141 of the backlight 14 passes through the through hole 152a, so as to prevent the second reflective sheet 152 from blocking the bead 141 to form a dark spot on the liquid crystal glass 18.

The reflecting component 15 is arranged in such a structure, and the first reflecting sheet 151 and the second reflecting sheet 152 are independent from each other, so that the liquid crystal display panel is not easily heated and greatly deformed, the phenomenon that the light reflecting effect of the backlight source 14 is influenced to cause uneven light receiving of the liquid crystal glass 18 is avoided, the probability of local shadows appearing on the display screen 10 is reduced, and the overall display effect is improved.

In some embodiments, the first reflective sheet 151 includes a bent portion 151a, and the bent portion 151a is sandwiched between the top of the inner frame 12 and a side of the diffusion plate 16 facing away from the liquid crystal glass 18, so that light emitted from the backlight 14 is reflected by the bent portion 151a of the first reflective sheet 151 and enters the edge of the liquid crystal glass 18 as far as possible, thereby reducing black edges and improving the narrow-frame visual effect of the display screen 10.

The diffusion plate 16 can be connected to the bent portion 151a of the first reflection sheet 151 through a double-sided tape 16a, and the double-sided tape 16a has light transmittance to reduce the probability of local dark shadows of the display screen 10 due to the light shielding of the double-sided tape 16 a.

It should be noted that the top of the inner frame 12 may be provided with a step groove 122, so that the step groove 122 is used to accommodate the bent portion 151a of the first reflection sheet 151, thereby making the overall structure more compact and facilitating the lightness and thinness of the display screen 10.

In some embodiments, as shown in fig. 8, the first reflection sheet 151 is connected to the inclined wall surface 121 of the inner frame 12 by a double-sided tape 121a, and a gap is reserved between an edge of the first reflection sheet 151 close to the second reflection sheet 152 and the inclined wall surface 121 to form a suspended portion 151 b. The edge of the second reflective sheet 152 is opposite to the free portion 151b of the first reflective sheet 151, so that when the second reflective sheet 152 contacts the first reflective sheet 151, the free portion 151b of the first reflective sheet 151 can have a good buffering effect, and hard interference between the first reflective sheet 151 and the second reflective sheet 152 is reduced to generate large deformation, so that light emitted by the backlight 14 is uniformly and stably reflected to the liquid crystal glass 18, occurrence of local bright points and dark shadows is reduced, and the display effect of the liquid crystal glass 18 is relatively soft.

As shown in fig. 10 and 11, the optical film 17 includes a side portion 171 and a main body portion 172, the main body portion 172 covers the diffuser plate 16, and the side portion 171 is connected to the main body portion 172 and is bent toward the side of the diffuser plate 16 with respect to the main body portion 172.

One side 11b of the step portion 11a facing away from the outer surface 101 of the outer frame 11 is surface-treated to absorb a portion of the light reflected by the optical film 17 at the bending portion, so as to prevent the display effect of the display screen 10 from being affected by the bright spots generated at the bending portion of the optical film 17.

As shown in fig. 5, the outer side of the inner frame 12 is connected to a limiting piece 19, the side portion 171 of the optical film 17 is provided with a through hole 17a, the limiting piece 19 penetrates the through hole 17a and limits the optical film 17 in the inner frame 12, so as to prevent the optical film from separating from the diffuser plate 16.

It should be noted that the side 171 of the optical film 17 may have a greater extension along the outer wall of the inner frame 12 at the position where the through hole 17a is opened, so as to provide a sufficient position for the through hole 17 a.

In some embodiments, the spacing piece 19 includes a first bending portion 191 and a second bending portion 192 connected by bending. The size relationship between the first bending portion 191 and the second bending portion 192 is not limited as long as the position-limiting piece 19 is bent to stably limit the position of the optical film 17.

As shown in fig. 5 and 11, the first bending portion 191 faces the side of the first back plate 131 with respect to the bending direction of the second bending portion 192, the sidewall of the outer side of the inner frame 12 is provided with an avoiding hole 12c, the avoiding hole 12c is opposite to the through hole 17a, and the second bending portion 192 penetrates through the through hole 17a and is located in the avoiding hole 12c, so as to avoid a large gap from occurring between the outer wall of the inner frame 12 and the second bending portion 192, which results in the optical film 17 being easily separated from the gap.

As shown in fig. 5 and 6, the limiting plate 19 may be connected to the inner frame 12 by a connecting member such as a screw or a locking plate. In some embodiments, the limiting sheet 19 is further formed with a connecting end 193, the outer wall of the inner frame 12 is provided with a matching hole 12d matched with the connecting end 193, so that the limiting sheet 19 is stably connected with the inner frame 12 by matching the connecting section 193 with the matching hole 12d, and then the limiting sheet 19 stably limits the optical diaphragm 17.

The inner frame 12 is formed with a receiving groove 12b at an outer side thereof, and the first bending portion 191 is located in the receiving groove 12b, so that when the outer frame 11 is coupled to the inner frame 12, the first bending portion 191 interferes with the inner wall 102 of the outer frame 11, and the inner structure of the display screen 10 is made compact by this arrangement.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display screen, comprising:

the liquid crystal glass is provided with a light emergent surface;

2. The display screen of claim 1, wherein the inner wall of the outer frame is provided with a buckle, the outer wall of the inner frame is provided with a clamping groove, and when the inner frame is connected with the outer frame, the buckle extends into the clamping groove and is clamped with the side wall of the inner frame provided with the clamping groove.

3. The display screen of claim 1, wherein the inner frame includes a top portion and a bottom portion opposite to each other, the dodging assembly includes a diffuser plate, an optical film, and a reflective member, an edge of a side of the diffuser plate facing away from the liquid crystal glass is connected to the top portion of the inner frame, a side wall of the diffuser plate is opposite to a side of the step portion facing away from an outer surface of the outer frame, the optical film covers at least a surface of the diffuser plate facing toward the liquid crystal glass, the reflective member is located between the diffuser plate and the backplate assembly, and the bottom portion of the inner frame is connected to the backplate assembly.

4. The display screen of claim 3, wherein the reflection component includes a first reflection sheet and a second reflection sheet, one side of the inner frame facing away from the outer frame is an inclined wall surface, the inclined wall surface extends towards a side away from the outer frame in a direction away from the liquid crystal glass, the first reflection sheet at least covers the inclined wall surface, the second reflection sheet covers the backlight source, the second reflection sheet is provided with a through hole, and a bead of the backlight source penetrates through the through hole.

5. The display screen of claim 4, wherein the first reflection sheet is connected with the inclined wall surface of the inner frame through a double-sided adhesive tape, and a gap is reserved between the edge of the first reflection sheet close to the second reflection sheet and the inclined wall surface to form a suspended portion, and the edge of the second reflection sheet is opposite to the suspended portion of the first reflection sheet.

6. The display screen according to claim 4 or 5, wherein the first reflection sheet comprises a bent portion, and the bent portion is sandwiched between the top of the inner frame and a side of the diffusion plate facing away from the liquid crystal glass.

7. The display screen of claim 4, wherein the optical film includes a main body portion overlying the diffuser plate and side portions connected to the main body portion and bent toward sides of the diffuser plate relative to the main body portion.

8. The display screen of claim 7, wherein a limiting piece is connected to an outer side of the inner frame, a through hole is formed in a side portion of the optical membrane, and the limiting piece penetrates through the through hole and limits the optical membrane to the inner frame.

9. The display screen of claim 8, wherein the limiting piece comprises a first bending portion and a second bending portion which are connected in a bending mode, the bending direction of the first bending portion relative to the second bending portion faces one side where the back plate assembly is located, an avoiding hole is formed in the side wall of the outer side of the inner frame, the avoiding hole is opposite to the position of the through hole, and the second bending portion penetrates through the through hole and is located in the avoiding hole.

10. The display screen of claim 9, wherein an accommodating groove is formed on an outer side of the inner frame, and the first bending portion is located in the accommodating groove.

11. The display screen of claim 4, wherein the back plate assembly comprises a first back plate and a second back plate, and the second back plate is stacked on the side of the first back plate facing the liquid crystal glass.

12. The display screen of claim 11, wherein a first abutting protrusion and a second abutting protrusion are arranged at the bottom of the inner frame, the second abutting protrusion abuts against the second back plate, the first abutting protrusion abuts against the first back plate, a gap is formed between the bottom of the inner frame and the first back plate, and the gap is used for filling a rubber material to bond the first back plate to the bottom of the inner frame.

13. The display screen of claim 12, wherein a groove is formed in the bottom of the display screen at a position corresponding to the gap, and when the gap is filled with the glue material, a part of the structure of the glue material is embedded in the groove.

14. A display screen according to claim 12, wherein the edge of the first back panel forms an abutment against the outside of the inner frame.

15. The display screen of claim 14, wherein a clearance groove is formed in the bottom of the inner frame, and the clearance groove is located between the first abutting protrusion and the second abutting protrusion and is used for accommodating an end of the second back plate.

16. A liquid crystal television comprising a display screen according to any one of claims 1 to 15.