CN221149083U - Display screen - Google Patents

Abstract

The application belongs to the technical field of display screens, and particularly provides a display screen which comprises an optical component, a back plate, a display panel and a middle frame, wherein one side of the optical component is abutted against the back plate, a diaphragm is arranged on one side of the optical component, which is opposite to the back plate, the display panel is attached to the diaphragm, and the middle frame is connected with the back plate and abutted against one side of the display panel, which is opposite to the diaphragm. The optical assembly and the display panel are clamped and fixed through the joint matching of the back plate and the middle frame, so that the display panel is tightly attached to the membrane in the optical assembly and kept in a relatively static state, the situation that the display panel and the membrane are scratched due to the relative movement of the display panel and the membrane is effectively avoided, and the service lives of the display panel and the membrane are effectively prolonged. In addition, the display panel is tightly attached to the membrane, so that visual level difference sense is effectively eliminated, and a better watching effect is brought to a user.

Description

Display screen

Technical Field

The application belongs to the technical field of display screens, and particularly relates to a display screen.

Background

The display screen generally comprises an optical assembly, a display panel, a middle frame and the like, wherein the optical assembly comprises an optical film, the optical film is spaced from the display panel, the middle frame stretches into between the display panel and the optical film, one side of the middle frame is used for pressing the optical film, and the other side of the middle frame is used for bearing the display panel. When the display screen is rocked or moved, the optical film is easily deformed, so that the optical film and the display panel are easily contacted and relatively moved, scratch is caused on the optical film and the display panel, and in addition, when the display screen is seen by being inclined at a certain angle in the forward direction, the part of the middle frame extending into the space between the display panel and the optical film is visible, so that the visual level difference sense exists.

Disclosure of utility model

The application aims to provide a display screen, which aims to solve the technical problems that an optical film of the display screen and a display panel are easy to contact and move relatively in the prior art, so that the optical film and the display panel are scratched and have visual level difference feeling.

In order to achieve the above purpose, the application adopts the following technical scheme: a display screen comprises an optical assembly, a back plate, a display panel and a middle frame, wherein one side of the optical assembly is abutted with the back plate, one side of the optical assembly, which is opposite to the back plate, is provided with a membrane, the display panel is abutted with the membrane, and the middle frame is connected with the back plate and is abutted with one side of the display panel, which is opposite to the membrane.

Compared with the prior art, the display screen provided by the application has the beneficial effects that: the optical assembly and the display panel are clamped and fixed through the joint matching of the back plate and the middle frame, so that the display panel is tightly attached to the membrane in the optical assembly and kept in a relatively static state, the situation that the display panel and the membrane are scratched due to the relative movement of the display panel and the membrane is effectively avoided, and the service lives of the display panel and the membrane are effectively prolonged. In addition, the display panel is tightly attached to the membrane, so that visual level difference sense is effectively eliminated, and a better watching effect is brought to a user.

Further, the middle frame comprises a fixing part and a pressing part, one end of the fixing part is connected with the backboard, the other end of the fixing part is connected with the pressing part, the fixing part and the backboard enclose together to form a limit groove, the edge of the optical assembly and the edge of the display panel are inserted into the limit groove, and the pressing part is abutted to the display panel.

Further, the middle frame comprises a first frame strip, a second frame strip, a third frame strip and a fourth frame strip which are connected end to end, wherein the first frame strip, the second frame strip, the third frame strip and the fourth frame strip are all connected with the backboard and respectively abutted with the four edges of the display panel.

Further, one end of the first frame strip is overlapped with one end of the second frame strip, the other end of the first frame strip is overlapped with one end of the fourth frame strip, one end of the third frame strip is overlapped with one end of the second frame strip far away from the first frame strip, and the other end of the third frame strip is overlapped with one end of the fourth frame strip far away from the first frame strip.

Further, the display screen also comprises a glass panel, the glass panel is abutted against one side of the middle frame, which is opposite to the display panel, and the middle frame is formed by extrusion molding.

Further, the side of the middle frame facing the glass panel is subjected to high light or etching or oil spraying treatment.

Further, the display screen further comprises a glass panel and a front frame, wherein the glass panel is abutted against one side, back to the membrane, of the middle frame, the front frame is connected with the back plate, and is abutted against one side, back to the middle frame, of the glass panel.

Further, the front frame comprises a connecting part and an abutting part which are connected, the connecting part is connected with the backboard, the connecting part, the abutting part and the backboard jointly enclose to form a fixed groove, the edge of the glass panel and the edge of the middle frame are inserted into the fixed groove, and the abutting part is abutted with the glass panel.

Further, the display screen further comprises an infrared emitter and a filter strip, wherein the infrared emitter and the filter strip are both arranged on the front frame, the filter strip is positioned on one side of the glass panel, which is opposite to the middle frame, and the infrared emitter is arranged close to the filter strip.

Further, the optical assembly comprises a reflecting sheet, a diffusing plate and a membrane which are sequentially stacked, and one side of the reflecting sheet, which is opposite to the diffusing plate, is abutted with the back plate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a partial structure of a display screen according to an embodiment of the present application;

FIG. 2 is a partial exploded view of a display screen according to an embodiment of the present application;

FIG. 3 is a schematic view of a side of the middle frame shown in FIG. 2 facing the display panel;

FIG. 4 is a side view of the middle frame shown in FIG. 2;

fig. 5 is a cross-sectional view of a front frame of the display screen shown in fig. 1.

Wherein, each reference sign in the figure:

10. An optical component; 11. a membrane; 12. a reflection sheet; 13. a diffusion plate; 20. a back plate; 21. a bending part; 22. riveting a column; 30. a display panel; 40. a middle frame; 41. a fixing part; 42. a pressing part; 43. a first frame bar; 44. a second frame strip; 441. a lap joint groove; 45. a third frame bar; 46. a fourth frame bar; 50. a limit groove; 60. damping foam; 70. a glass panel; 80. a front frame; 81. a connection part; 811. a slot; 812. a receiving chamber; 813. a light-transmitting port; 82. an abutting portion; 90. a fixing groove; 100. an infrared emitter; 110. and (5) a filter strip.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

In the description of the present application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

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 application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The optical film of the traditional display screen is spaced from the display panel, and the optical film is easy to deform, so that the optical film and the display panel are easy to contact and move relatively, scratch is caused on the optical film and the display panel, in addition, when the display screen is seen at a positive inclination angle, the part of the middle frame extending into the space between the display panel and the optical film is visible, and the section difference sense on the visual angle exists.

In view of the above-mentioned shortcomings, the embodiment of the application provides a display screen, which effectively avoids scratch on an optical film and a display panel by avoiding relative movement between the optical film and the display panel, and effectively eliminates visual level difference feeling by eliminating a gap between the optical film and the display panel. The specific structure of the display screen can be described in detail as follows:

as shown in fig. 1 and 2, the display screen includes an optical assembly 10, a back plate 20, a display panel 30, and a middle frame 40, wherein one side of the optical assembly 10 is in contact with the back plate 20, one side of the optical assembly 10 facing away from the back plate 20 has a membrane 11, the display panel 30 is attached to the membrane 11, and the middle frame 40 is connected to the back plate 20 and in contact with one side of the display panel 30 facing away from the membrane 11.

The optical assembly 10 and the display panel 30 are clamped and fixed through the cooperation of the back plate 20 and the middle frame 40, so that the display panel 30 is tightly attached to the membrane 11 in the optical assembly 10 and kept in a relatively static state, the situation that the display panel 30 and the membrane 11 are scratched due to the relative movement of the display panel 30 and the membrane 11 is effectively avoided, and the service lives of the display panel 30 and the membrane 11 are effectively prolonged. In addition, the display panel 30 is tightly attached to the membrane 11, so that the level difference sense in the visual angle is effectively eliminated, and a better viewing effect is brought to the user.

The middle frame of the traditional display screen stretches into between the display panel and the optical membrane, and the distance between the display panel and the optical membrane can be enlarged by increasing the thickness of the middle frame, so that the possibility of contact between the display panel and the optical membrane is reduced, however, the thickness of the display screen is too large, and the light and thin requirements of the whole machine cannot be met.

In the display screen provided by the application, the display panel 30 and the optical component 10 are clamped by the cooperation of the middle frame 40 and the back plate 20, so that the display panel 30 is tightly attached to the membrane 11 in the optical component 10, thereby achieving the purpose of effectively avoiding scratch on the display panel 30 and the membrane 11 caused by relative movement of the display panel 30 and the membrane 11, and the middle frame 40 does not need to extend between the display panel 30 and the membrane 11 to enable the display panel 30 to be spaced from the membrane 11, so that the thickness of the middle frame 40 can be reduced, the overall thickness of the display screen is reduced, and the demand of lightening and thinning of the whole display screen is favorably met.

The display screen provided by the embodiment of the application can be particularly applied to intelligent blackboards, conference machines, advertising machines, educational machines or tablet computers and the like, and is not limited herein.

In another embodiment of the present application, as shown in fig. 1 and 2, the optical assembly 10 includes a reflective sheet 12, a diffusion plate 13, and the membrane 11 that are sequentially stacked, and a side of the reflective sheet 12 facing away from the diffusion plate 13 is in contact with a back plate 20. The reflective sheet 12 is provided with coating particles, so that light rays can be reflected to the display panel 30, the utilization rate of the light rays is improved, and the brightness is enhanced; the diffusion plate 13 plays a role of supporting the membrane 11 and homogenizing light, and can be made of PP or PS materials; the film 11 plays a role of enhancing brightness and homogenizing light, and may be specifically made of transparent resin.

Further, the optical assembly 10 further includes a light source, where the light source is mounted on the back plate 20, and the light source specifically selects MiniLED lamp beads to reduce the light mixing distance, and meanwhile, adopts a partition control technology and combines with the QD film, so that the color gamut can be increased, and the color gamut of the whole machine can reach NTSC1931 not less than 102%. In the embodiment of the application, the display screen is direct type, the light source is positioned right behind the diffusion plate 13, and the light is directly emitted to the diffusion plate 13. In other embodiments, the display screen may be of a side-in type, for which the optical assembly 10 eliminates the diffusion plate 13, the optical assembly 10 further includes a light guide plate, the light source is disposed on a side portion of the light guide plate, and the light is first incident into the light guide plate from the side portion, converted into a surface light source by the light guide plate, and transmitted through the display panel 30.

In another embodiment of the present application, the back plate 20 may be embodied as a hardware back plate 20. As shown in fig. 1, the back plate 20 is provided with a rivet 22, and the rivet 22 is used for pre-fixing the diffusion plate 13 and the membrane 11 during assembly.

In another embodiment of the present application, the display panel 30 may be a liquid crystal panel, and is composed of a liquid crystal layer, a polarizer, a filter, a glass substrate, a circuit board, and the like. Under the condition of no external electric field, the liquid crystal molecules do irregular motion, under the action of the external electric field, the liquid crystal molecules are forced to present a regular arrangement mode, and light rays are injected into the liquid crystal layer through the polaroid, so that the refraction phenomenon of the light is generated, and an image is displayed. The circuit board is electrically connected with the liquid crystal panel and provides electric signals for the liquid crystal panel.

In another embodiment of the present application, as shown in fig. 1, the middle frame 40 includes a fixing portion 41 and a pressing portion 42, one end of the fixing portion 41 is connected to the back plate 20, the other end of the fixing portion 41 is connected to the pressing portion 42, the fixing portion 41 and the back plate 20 are enclosed together to form a limiting groove 50, the edge of the optical assembly 10 and the edge of the display panel 30 are inserted into the limiting groove 50, and the pressing portion 42 abuts against the display panel 30.

The fixing part 41, the pressing part 42 and the back plate 20 are jointly enclosed to form the limit groove 50, the edge of the optical assembly 10 and the edge of the display panel 30 are inserted into the limit groove 50, the pressing part 42 is abutted against one side of the display panel 30, which is away from the optical assembly 10, and the back plate 20 is abutted against one side of the optical assembly 10, which is away from the display panel 30, so that the optical assembly 10 and the display panel 30 are clamped and fixed, the display panel 30 is tightly attached to the membrane 11 in the optical assembly 10, the relatively static state is maintained, and the situation that scratches are caused to the display panel 30 and the membrane 11 due to the relative movement of the display panel 30 and the membrane 11 is effectively avoided.

Further, as shown in fig. 1, a side of the pressing portion 42 facing the display panel 30 may be provided with a shock absorbing foam 60, that is, the pressing portion 42 abuts against the display panel 30 through the shock absorbing foam 60. On the one hand, the damping foam 60 plays a role in buffering, so that the pressing part 42 can be prevented from being in hard contact with the display panel 30, the protection effect on the display panel 30 is enhanced, on the other hand, the damping foam 60 has elasticity, and the compressed damping foam 60 can apply an acting force pointing to the membrane 11 to the display panel 30, so that the display panel 30 is tightly attached to the membrane 11.

Further, the edge of the display panel 30 and the edge of the optical module 10 may be abutted against the fixing portion 41, or a buffer material may be provided to fill the gap between the display panel 30 and the fixing portion 41, and the gap between the optical module 10 and the fixing portion 41, thereby performing a limiting function in the circumferential direction on the display panel 30 and the optical module 10.

Further, as shown in fig. 1, a side surface of the pressing portion 42 facing away from the display panel 30 is flush with a side surface of the fixing portion 41 facing away from the back plate 20, so as to form a stable supporting surface for carrying other components.

In another embodiment of the present application, as shown in fig. 2 and 3, the middle frame 40 includes a first frame bar 43, a second frame bar 44, a third frame bar 45 and a fourth frame bar 46 connected end to end, and each of the first frame bar 43, the second frame bar 44, the third frame bar 45 and the fourth frame bar 46 is connected to the back panel 20 and abuts against four edges of the display panel 30.

The first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 are all connected with the backboard 20, so that the connection reliability of the middle frame 40 and the backboard 20 can be improved; the first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 are respectively abutted against the four edges of the display panel 30, so that the compression effect on the display panel 30 can be enhanced, and the display panel 30 and the membrane 11 are tightly attached and are not easy to separate.

Further, the first frame strip 43 is detachably connected to the second frame strip 44, the second frame strip 44 is detachably connected to the third frame strip 45, the third frame strip 45 is detachably connected to the fourth frame strip 46, and the fourth frame strip 46 is detachably connected to the first frame strip 43. The first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 can be independently processed and manufactured, the process is simple, the manufacturing cost is low, and the frame strips can be independently replaced without integral replacement, thereby being beneficial to reducing the maintenance cost.

Further, one end of the first frame strip 43 is overlapped with one end of the second frame strip 44, the other end of the first frame strip 43 is overlapped with one end of the fourth frame strip 46, one end of the third frame strip 45 is overlapped with one end of the second frame strip 44 away from the first frame strip 43, and the other end of the third frame strip 45 is overlapped with one end of the fourth frame strip 46 away from the first frame strip 43. The first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 are connected in a lap joint mode, so that the end parts overlap and coincide with each other, and the light leakage problem is effectively avoided.

Specifically, as shown in fig. 3 and 4, one end of the second frame strip 44 is provided with a lapping groove 441, and one end of the first frame strip 43 extends into the lapping groove 441 to lap the second frame strip 44. Of course, the other end of the second frame strip 44 is also provided with a lapping groove 441 lapped with the third frame strip 45. Similarly, one end of the fourth frame strip 46 is provided with a lapping groove 441 lapping the first frame strip 43, and the other end of the fourth frame strip 46 is provided with a lapping groove 441 lapping the third frame strip 45.

Further, the first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 are provided with holes for threaded fasteners to pass through, and the first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 can be fixed on the backboard 20 through screws so as to improve the connection reliability of the middle frame 40 and the backboard 20.

In the embodiment of the present application, the first frame strip 43, the second frame strip 44, the third frame strip 45 and the fourth frame strip 46 each include the fixing portion 41 and the pressing portion 42, the fixing portion 41 of the first frame strip 43 and the pressing portion 42 of the first frame strip 43 are integrally formed, the fixing portion 41 of the second frame strip 44 and the pressing portion 42 of the second frame strip 44 are integrally formed, the fixing portion 41 of the third frame strip 45 and the pressing portion 42 of the third frame strip 45 are integrally formed, the fixing portion 41 of the fourth frame strip 46 and the pressing portion 42 of the fourth frame strip 46 are integrally formed, and the fixing portion 41 of the first frame strip 43, the fixing portion 41 of the second frame strip 44, the fixing portion 41 of the fourth frame strip 46 and the pressing portion 42 of the first frame strip 43 are all fixed on the back plate 20 by screws, and the pressing portion 42 of the second frame strip 44, the pressing portion 42 of the third frame strip 45 and the pressing portion 42 of the fourth frame strip 46 are respectively abutted against four edges of the display panel 30.

In another embodiment of the present application, the middle frame 40 is formed by extrusion. The middle frame 40 is formed by extrusion molding, so that the process is simple, an injection mold is not needed, the manufacturing cost is low, the surface is smooth, and burrs are few. Specifically, the first frame strip 43, the second frame strip 44, the third frame strip 45, and the fourth frame strip 46 of the middle frame 40 are independently extrusion molded, and then overlap-jointed to form the middle frame 40.

In another embodiment of the present application, the middle frame 40 may be treated with high gloss or etched or sprayed with oil to enhance the aesthetic appearance.

In another embodiment of the present application, as shown in fig. 1 and 2, the display screen further includes a glass panel 70, where the glass panel 70 abuts against a side of the middle frame 40 facing away from the display panel 30. The glass panel 70 is supported by the middle frame 40 in a manner of being away from the middle frame, can protect the display panel 30, and can allow light of the display panel 30 to be transmitted. Specifically, a side of the fixing portion 41 of the middle frame 40 facing away from the back plate 20 is flush with a side of the pressing portion 42 of the middle frame 40 facing away from the display panel 30, and supports the glass panel 70 together. The glass panel 70 is specifically a tempered glass and may be subjected to an antiglare treatment.

The traditional middle frame of display screen is injection moulding generally, and the surface is more burr, sees the burr on the middle frame easily through glass panel, and pleasing to the eye degree is relatively poor, consequently usually needs silk screen printing black or green printing ink in light-transmitting glass's edge department to cover the burr on the middle frame, however, silk screen printing technology's cost is higher, and the problem of silk screen printing bad appears easily in addition, receives the influence of assembly precision, and the silk screen printing covers display panel easily, appears pressing the problem of pixel check.

In the display screen provided by the embodiment of the application, the middle frame 40 is formed by extrusion molding, the surface is smoother, burrs are fewer, and further, the side of the middle frame 40 facing the glass panel 70 is subjected to highlight or etching or oil spraying treatment, so that the attractiveness is improved, the silk screen process of the glass panel 70 can be canceled, the manufacturing cost is reduced, and the problem that the display panel 30 is easily covered by silk screen is avoided.

In another embodiment of the present application, as shown in fig. 1, the display screen further includes a front frame 80, where the glass panel 70 abuts against a side of the middle frame 40 facing away from the display panel 30, and the front frame 80 is connected to the back plate 20 and abuts against a side of the glass panel 70 facing away from the middle frame 40.

One side of the glass panel 70 is abutted against the middle frame 40, the other side of the glass panel 70 is abutted against the front frame 80, and the front frame 80 and the middle frame 40 are matched with each other, so that the glass panel 70 is clamped and fixed. The front frame 80 may be an aluminum frame. In assembly, the reflective sheet 12, the diffusion plate 13, the membrane 11 and the display panel 30 are firstly placed on the back plate 20 in sequence, then the first frame strip 43 and the third frame strip 45 are fixed on the back plate 20 through screws, the first frame strip 43 and the third frame strip 45 are pressed against two edges of the display panel 30, then two ends of the second frame strip 44 are respectively overlapped with one end of the first frame strip 43 and one end of the third frame strip 45, two ends of the fourth frame strip 46 are respectively overlapped with the other end of the first frame strip 43 and the other end of the third frame strip 45, the second frame strip 44 and the fourth frame strip 46 are fixed on the back plate 20 through screws, the second frame strip 44 and the fourth frame strip 46 are pressed against the other two edges of the display panel 30, then the glass panel 70 is placed on the overlapped middle frame 40, and finally the front frame 80 is fixed on the back plate 20 through screws, and the front frame 80 is pressed against one side of the glass panel 70, which faces away from the middle frame 40, so that the assembly of the display screen is completed.

Further, as shown in fig. 1 and 5, the front frame 80 includes a connecting portion 81 and an abutting portion 82, the connecting portion 81 is connected to the back plate 20, the connecting portion 81, the abutting portion 82 and the back plate 20 enclose together to form a fixing groove 90, the edge of the glass panel 70 and the frame of the middle frame 40 are inserted into the fixing groove 90, and the abutting portion 82 abuts against the glass panel 70. The fixing groove 90 is formed by enclosing the connecting portion 81, the abutting portion 82 and the back plate 20 together, the edge of the glass panel 70 and the edge of the middle frame 40 are inserted into the fixing groove 90, the abutting portion 82 abuts against one side of the glass panel 70 away from the middle frame 40, and the back plate 20 abuts against one side of the middle frame 40 away from the glass panel 70, so that the glass panel 70 and the middle frame 40 are clamped and fixed.

Further, as shown in fig. 1 and 5, the connection portion 81 of the front frame 80 is provided with a slot 811, the back plate 20 has a bent portion 21, and the bent portion 21 of the back plate 20 is inserted into the slot 811 of the front frame 80. By inserting the bent portion 21 of the back plate 20 into the slot 811 of the front frame 80, the back plate 20 and the front frame 80 can be easily and quickly docked, and the connection reliability of the back plate 20 and the front frame 80 can be improved.

Further, as shown in fig. 1 and 5, the connecting portion 81 is provided with a receiving cavity 812 for receiving other components, and the receiving cavity 812 has a light-transmitting port 813.

In another embodiment of the present application, as shown in fig. 1 and 2, the display screen further includes an infrared emitter 100 and a filter strip 110, wherein the infrared emitter 100 and the filter strip 110 are both mounted on the front frame 80, the filter strip 110 is located on a side of the glass panel 70 facing away from the middle frame 40, and the infrared emitter 100 is disposed close to the filter strip 110.

The infrared emitter 100 can emit infrared light, and the infrared light passes through the filter strip 110 and then covers one side of the glass panel 70, which is opposite to the middle frame 40, to form an infrared light sensing layer, and when a user uses a finger or a touch pen to extend into the infrared light sensing layer to block the transmission path of the infrared light, the touch function can be realized; the filter strip 110 is used for filtering various light rays in the environment, avoiding interference to the operation of the infrared emitter 100, and ensuring the touch accuracy and sensitivity.

Specifically, as shown in fig. 1 and 5, the infrared emitter 100 is installed in the receiving cavity 812 of the connection part 81 of the front frame 80, and the filter strip 110 is installed in the light-transmitting port 813 of the receiving cavity 812.

The foregoing description of the preferred embodiments of the application 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 application.

Claims (10)

1. The utility model provides a display screen, its characterized in that includes optical subassembly (10), backplate (20), display panel (30) and center (40), one side of optical subassembly (10) with backplate (20) butt, optical subassembly (10) are dorsad have diaphragm (11) in one side of backplate (20), display panel (30) with diaphragm (11) laminating, center (40) with backplate (20) are connected, and with display panel (30) are dorsad one side butt of diaphragm (11).

2. A display screen as recited in claim 1, wherein: the middle frame (40) comprises a fixing part (41) and a pressing part (42), one end of the fixing part (41) is connected with the back plate (20), the other end of the fixing part (41) is connected with the pressing part (42), the fixing part (41) and the back plate (20) jointly enclose to form a limiting groove (50), the edge of the optical assembly (10) and the edge of the display panel (30) are inserted into the limiting groove (50), and the pressing part (42) is in butt joint with the display panel (30).

3. A display screen as recited in claim 1, wherein: the middle frame (40) comprises a first frame strip (43), a second frame strip (44), a third frame strip (45) and a fourth frame strip (46) which are connected end to end, wherein the first frame strip (43), the second frame strip (44), the third frame strip (45) and the fourth frame strip (46) are connected with the back plate (20) and respectively abut against the four edges of the display panel (30).

4. A display screen as claimed in claim 3, wherein: one end of the first frame strip (43) is overlapped with one end of the second frame strip (44), the other end of the first frame strip (43) is overlapped with one end of the fourth frame strip (46), one end of the third frame strip (45) is overlapped with one end of the second frame strip (44) away from the first frame strip (43), and the other end of the third frame strip (45) is overlapped with one end of the fourth frame strip (46) away from the first frame strip (43).

5. A display screen as recited in claim 1, wherein: the display screen further comprises a glass panel (70), the glass panel (70) is abutted to one side, opposite to the membrane (11), of the middle frame (40), and the middle frame (40) is formed by extrusion molding.

6. A display screen as recited in claim 5, wherein: the side of the middle frame (40) facing the glass panel (70) is subjected to high-light or etching or oil spraying treatment.

7. A display screen as claimed in any one of claims 1 to 4, wherein: the display screen further comprises a glass panel (70) and a front frame (80), wherein the glass panel (70) is abutted against one side, facing away from the display panel (30), of the middle frame (40), and the front frame (80) is connected with the back plate (20) and abutted against one side, facing away from the middle frame (40), of the glass panel (70).

8. The display screen of claim 7, wherein: the front frame (80) comprises a connecting portion (81) and an abutting portion (82) which are connected, the connecting portion (81) is connected with the back plate (20), the connecting portion (81), the abutting portion (82) and the back plate (20) are jointly enclosed to form a fixing groove (90), edges of the glass panel (70) and frames of the middle frame (40) are inserted into the fixing groove (90), and the abutting portion (82) is abutted to the glass panel (70).

9. The display screen of claim 7, wherein: the display screen further comprises an infrared emitter (100) and a light filtering strip (110), wherein the infrared emitter (100) and the light filtering strip (110) are both installed on the front frame (80), the light filtering strip (110) is located on one side, opposite to the middle frame (40), of the glass panel (70), and the infrared emitter (100) is close to the light filtering strip (110).

10. A display screen according to any one of claims 1-6, wherein: the optical assembly (10) comprises a reflecting sheet (12), a diffusion plate (13) and the membrane (11) which are sequentially stacked, wherein one side, opposite to the diffusion plate (13), of the reflecting sheet (12) is abutted against the back plate (20).