CN215494961U

CN215494961U - Waterproof good face frame subassembly and infrared touch display screen

Info

Publication number: CN215494961U
Application number: CN202121129243.7U
Authority: CN
Inventors: 谭景焕
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-01-11
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses a face frame assembly with good waterproof performance and an infrared touch display screen, wherein the face frame assembly with good waterproof performance comprises: a frame provided with an embedding groove; a groove opening communicated with the embedding groove is formed on the inner side of the frame in the width direction; a light filtering strip provided with a mounting cavity; the filter strip comprises a base part and a convex part, the base part is embedded in the embedding groove, and the convex part extends out of the embedding groove from the groove opening; the infrared touch frame is arranged in the mounting cavity; the fixed bracket is connected with the frame and comprises a first pressing part, and a touch panel mounting gap is formed between the first pressing part and the convex part; the infrared touch display screen comprises the face frame assembly and the touch panel, wherein the touch panel is clamped between the convex part and the first pressing part. According to the face frame assembly with good waterproof performance, the infrared touch frame is arranged in the mounting cavity of the light filtering strip, so that the infrared touch frame is prevented from being corroded by moisture, and the face frame assembly is good in waterproof performance, high in reliability and simple in structure; the infrared touch display screen has the advantages of good waterproof performance, high reliability, simple structure and low cost.

Description

Waterproof good face frame subassembly and infrared touch display screen

Technical Field

The utility model relates to the technical field of electronic display equipment, in particular to a face frame assembly with good waterproof performance and an infrared touch display screen.

Background

An infrared touch screen, that is, an infrared touch screen, is composed of infrared elements mounted on a frame of the touch screen, and these elements form an infrared detection network on the surface of the screen, so that an object (such as a finger) performing touch operation can change the infrared ray of a contact point and then be converted into a touch position to implement operation response.

In the existing infrared touch display, such as a commercial display, the face frame assembly generally includes a frame and an infrared assembly (a touch frame and a filter strip) disposed at the periphery of the display module; in traditional infrared touch display, in the draw-in groove of touch frame disect insertion frame, the optical filtering strip and frame joint to realize the equipment of face frame subassembly.

However, the waterproof performance of the face frame assembly of the existing infrared touch display is limited, and when the environment is humid, moisture in the external environment can easily enter the frame, so that the touch frame can be corroded and damaged by the moisture; particularly, in some provinces in the south, when the weather phenomena of the south return and plum rain occur, the condition that the touch frame is damaged by water inflow is easier to occur, and the after-sale maintenance cost of the infrared touch display is higher.

In addition, when some infrared touch display used under the environment that dust is more such as school, the user can use wet rag to clean the touch panel of display, so, the easy downflow and get into inside the frame through the clearance of filter strip and frame of water droplet, the condition of touch frame intaking appears, leads to the touch frame to damage the trouble.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the utility model is as follows: the utility model provides a waterproof good face frame subassembly, its touch frame waterproof performance is good, and simple structure.

The second purpose of the embodiment of the utility model is: the utility model provides an infrared touch display screen, its touch frame waterproof performance is good, and touch panel's installation is simple, overall structure is simple, and the reliability is high, and is with low costs.

In order to achieve one of the purposes, the utility model adopts the following technical scheme:

a well-waterproofed face frame assembly, comprising:

a frame provided with an embedding groove; a groove opening communicated with the embedding groove is formed on the inner side of the frame in the width direction;

a light filtering strip provided with a mounting cavity; the filter strip comprises a base part and a convex part, the base part is embedded in the embedding groove, and the convex part extends out of the embedding groove from the groove opening;

the infrared touch frame is arranged in the mounting cavity;

the fixed bracket is connected with the frame; the fixing bracket comprises a first pressing part, and a touch panel mounting gap is formed between the first pressing part and the convex part.

In order to achieve the second purpose, the utility model adopts the following technical scheme:

an infrared touch display screen comprises the face frame assembly with good waterproof performance and a touch panel, wherein the touch panel is clamped between a convex portion and a first pressing portion.

The utility model has the beneficial effects that: according to the face frame assembly with good waterproof performance, the infrared touch frame is arranged in the mounting cavity of the filter strip, the closed side wall of the filter strip prevents moisture from corroding the infrared touch frame, and the face frame assembly is good in waterproof performance and high in reliability; the face frame assembly is simple in structure, convenient for installing the touch panel and low in cost;

the infrared touch display screen has the advantages of good waterproof performance, high reliability, simple structure, low cost and convenience in maintenance.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

FIG. 1 is a partial cross-sectional view of an infrared touch display screen in accordance with an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a filter bar according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a matching between a light filter bar and an infrared touch frame according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a frame according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a face frame assembly according to an embodiment of the present invention;

in the figure: 10. a frame; 11. an embedding groove; 111. a first slot wall; 112. a second slot wall; 113. a third tank wall; 12. installing a threaded hole; 20. a light filtering strip; 201. a mounting cavity; 202. a limiting groove; 203. a position avoiding groove; 21. a base; 211. a second dislocation avoiding surface; 22. a convex portion; 221. a first limiting surface; 222. a second limiting surface; 223. a first avoidance plane; 23. a card slot; 30. fixing a bracket; 31. a first pressing portion; 32. a second pressing section; 33. a connecting portion; 40. an infrared touch frame; 41. an infrared PCB board; 42. an infrared transceiver element; 50. a fastener; 60. an adhesive member; 90. a touch panel.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It should be noted that, in the present invention, for the face frame assembly and the infrared touch display screen, the direction close to the center of the touch panel 90 is the inner side of each component, i.e. the "inner" direction indicated by the arrow in the drawing, and the direction away from the center of the touch panel 90 is the outer side of each component, i.e. the "outer" direction indicated by the arrow in the drawing; when the face frame assembly and the infrared touch display screen are used by a user, the touch panel 90 faces the user, the side facing the user is the front side, namely the direction of the arrow in the drawing, and the side facing away from the user is the back side, namely the direction of the arrow in the drawing.

The utility model provides a face frame assembly with good waterproof performance, which protects an infrared touch frame 40 through a filter strip 20, prevents the infrared touch frame 40 from being corroded by moisture, and has good waterproof performance and reliable infrared touch function.

As shown in fig. 1 to 5, in an embodiment of the waterproof face frame assembly of the present invention, the face frame assembly includes a bezel 10, a filter strip 20, an infrared touch frame 40, and a fixing bracket 30;

the inner side of the frame 10 provides a display module mounting space; an embedding groove 11 is formed in the frame 10, the embedding groove 11 extends along the length of the frame 10, a groove opening communicated with the embedding groove 11 is formed on the inner side of the frame 10 in the width direction, and the groove opening faces the installation space;

the filter strip 20 is in a strip-shaped structure, and an installation cavity 201 is arranged inside the filter strip 20; the side walls of the filter strips 20 are connected end to form an installation cavity 201 in a surrounding mode, namely, the side walls of the filter strips 20 are in a closed shape; the light filter strip 20 comprises a base part 21 and a convex part 22, the base part 21 is embedded in the embedding groove 11, and the convex part 22 extends out of the embedding groove 11 from the groove opening; wherein, the light filtering strip 20 and the light filtering strip 20 are provided with light filtering surfaces, and the light filtering surfaces mainly play a role in filtering infrared light;

the infrared touch frame 40 is arranged in the installation cavity 201; the infrared touch frame 40 includes an infrared PCB 41 and an infrared transceiving element 42;

the fixed bracket 30 is connected with the frame 10; the fixing bracket 30 includes a first pressing portion 31, and a mounting gap of the touch panel 90 is formed between the first pressing portion 31 and the convex portion 22; the first pressing portion 31 is used to cooperate with the convex portion 22 to sandwich the touch panel 90 between the first pressing portion 31 and the convex portion 22 to achieve the installation of the touch panel 90.

In the present invention, the inside of the frame 10 and the inside of the filter strip 20 are denoted by F in the drawing₁₁The direction of the inner side of the frame 10 and the outer side of the filter strip 20 is F in the figure₁₂The directions of the front side of the frame 10, the front side of the filter strip 20, and the front side of the touch panel 90 are F in the figure₂₁The directions of the rear side of the frame 10, the rear side of the filter strip 20, and the rear side of the touch panel 90 are F₂₂And (4) direction.

The face frame assembly is suitable for being applied to an infrared touch display screen.

When the face frame assembly is applied to the infrared touch display screen, the face frame assembly can be assembled through the following steps:

the infrared touch frame 40 is arranged in the installation cavity 201 of the light filter strip 20;

embedding the light filter strip 20 into the embedding groove 11 from the groove opening of the frame 10;

placing the front surface of the touch panel 90 on the convex portion 22, and supporting the touch panel 90 by the rear surface of the convex portion 22;

the fixing bracket 30 is attached to the bezel 10, and the touch panel 90 is pressed against the convex portion 22 by the first pressing portion 31.

The surface frame assembly adopted by the existing infrared touch display screen is generally that an infrared touch frame 40 is arranged in a groove of a frame 10, and then a light filtering strip 20 is clamped at the opening of the groove of the frame 10; however, in the face frame assembly with such a structure, external moisture is likely to enter the inner portion of the frame 10 through the gap between the filter strip 20 and the frame 10, which is likely to cause the infrared touch frame 40 to be wetted and enter water, and the waterproof performance is poor. When the infrared touch display screen is used in an environment with much dust, such as a school, a user can wipe glass with wet cleaning cloth, water in the wet cleaning cloth flows downwards along with the touch panel 90 and flows to the lower frame portion, the water flows into the inner portion of the lower frame 10 from a gap between the filter strip 20 and the lower frame portion, and the moisture erodes electronic elements in the infrared touch frame 40.

The surface frame assembly adopts the structure of the filter strip 20 with the installation cavity 201 arranged inside, the side wall of the filter strip 20 is of a closed seamless structure, moisture is not easy to enter the installation cavity 201, the infrared touch frame 40 is protected by the closed side wall of the filter strip 20, the infrared touch frame 40 in the installation cavity 201 is prevented from being corroded by the moisture, the waterproof performance is good, the infrared touch frame 40 can reliably work, and the reliability of the whole machine is improved; moreover, the face frame assembly is simple in structure, a clamping portion used for being clamped with the filter strip 20 does not need to be machined in the frame 10, the infrared touch frame 40 and the filter strip 20 are convenient to install, and the manufacturing and assembling cost of the face frame assembly is reduced.

The face frame assembly can be of a full-circle annular structure or a strip-shaped single-side structure.

In an embodiment, the frame 10 includes a plurality of frame portions, the frame portions are connected end to form an annular frame 10, and an installation space of the display module is enclosed by inner sides of the annular frame 10; the display module includes a touch panel 90; at least one frame portion is provided with a filter strip 20 provided with a mounting cavity 201 in the embodiment. According to the requirement of the appearance of the infrared touch display, the frame 10 may be, but not limited to, a rectangular ring structure, a trapezoidal ring structure, and the like.

In an embodiment, the frame 10 is a rectangular frame 10, and the frame 10 includes an upper frame portion, a right frame portion, a lower frame portion, and a left frame portion, and the light filter strips 20 are mounted in all four frame portions.

In an embodiment, the frame 10 in the panel frame assembly may also be only a strip-shaped frame 10, which is only used as a lower frame assembly when applied to a touch display screen, and is used for being connected with panel frame assemblies of other structures to form a display module installation space.

In one embodiment, the frame 10 includes a first slot wall 111, a second slot wall 112, and a third slot wall 113 connected in sequence; the first groove wall 111, the second groove wall 112 and the third groove wall 113 enclose to form an embedding groove 11 with one side opened;

the first groove wall 111 faces the front side surface of the filter strip 20, the second groove wall 112 faces the outer side surface of the filter strip 20, and the third groove wall 113 faces the rear side surface of the filter strip 20; the freedom degree of the filter strip 20 moving forwards, outwards and backwards is limited by the three groove walls of the frame 10;

the front side surface of the filter strip 20 is the surface of the front side in the thickness direction of the filter strip 20, the outer side surface of the filter strip 20 is the surface of the outer side in the width direction of the filter strip 20, and the rear side surface of the filter strip 20 is the surface of the rear side in the thickness direction of the filter strip 20.

In one embodiment, the shape of the embedding slot 11 and the outer surface of the base 21 are matched to each other, so as to ensure the reliable limit of the filter strip 20 by the embedding slot 11.

In one embodiment, in order to prevent the filter strip 20 from loosening and affecting the reliability, the filter strip 20 is reliably limited by the engagement of the bezel 10 with the mounting bracket 30 and the slot 11.

In the present embodiment, the embedding groove 11 restricts the degrees of freedom of the filter stripe 20 in moving forward in the thickness direction, moving backward in the thickness direction, and moving outward in the width direction;

the fixed bracket 30 further comprises a second pressing part 32 connected with the first pressing part 31, the first pressing part 31 and the second pressing part 32 are of an integral structure, and the first pressing part 31 is bent relative to the second pressing part 32; the outer surface of the base 21 in the width direction of the filter strip 20 is the inner surface of the base 21, the inner surface of the base 21 abuts against the second pressing portion 32, and the second pressing portion 32 limits the freedom degree of the filter strip 20 to move inward in the width direction.

The fixing bracket 30 is bent to form the first pressing part 31 and the second pressing part 32, so that when the fixing bracket 30 is installed, the touch panel 90 and the light filter strip 20 can be fixed at the same time, the light filter strip 20 and the infrared touch frame 40 can be effectively prevented from loosening, and the reliability of the face frame assembly is improved; the face frame assembly is simple in structure.

In one embodiment, a fastener 50 is further included, and the fixing bracket 30 is connected to the bezel 10 by the fastener 50.

In an embodiment, the fixing bracket 30 further includes a connecting portion 33, the second pressing portion 32 and the first pressing portion 31 are sequentially connected, the second pressing portion 32 is bent with respect to the connecting portion 33, the first pressing portion 31 is bent with respect to the second pressing portion 32, the connecting portion 33 presses the rear side surface of the frame 10, and the connecting portion 33 is connected to the frame 10 through a fastening member 50.

In this embodiment, the fastener 50 is a screw; the connecting portion 33 is provided with a screw through hole, the frame 10 is provided with a mounting threaded hole 12, and a screw passes through the screw through hole and is connected with the mounting threaded hole 12, so that the fixing bracket 30 is mounted on the frame 10.

In other embodiments, the fixing bracket 30 may be connected to the frame 10 by other connecting methods, such as riveting, buckling, etc.

In an embodiment, the infrared touch frame 40 includes an infrared PCB 41, the filter strip 20 further includes a card slot 23 formed in a wall of the mounting cavity 201, and the infrared PCB 41 is clamped in the card slot 23; the card slot 23 limits the freedom of movement of the filter strip 20 inward, outward, forward, and backward, and the filter strip 20 can only move relative to the card slot 23 along its length.

In this embodiment, the filter strip 20 includes the first card slot 23 and the second card slot 23, and on two opposite chamber walls of the installation cavity 201 were located to the first card slot 23 and the second card slot 23, the first card slot 23 and the second card slot 23 were inserted respectively at the both ends of the infrared PCB 41, thereby realizing that the installation of the infrared PCB 41 is fixed.

Further, the infrared touch frame 40 further includes an infrared transceiving element, which is fixed to the infrared PCB 41 and electrically connected to the infrared PCB 41; the inner side of the convex part 22 is a filtering surface, and the infrared ray transceiving element faces the filtering surface; the infrared transmitting/receiving element is an infrared transmitting element or an infrared receiving element, and when the infrared transmitting element is an infrared transmitting element, the infrared rays emitted by the infrared transmitting element can pass through the filtering surface to emit the filtering strip 20, and when the infrared receiving element is an infrared receiving element, the infrared receiving element can receive the infrared rays which pass through the filtering surface to enter the installation cavity 201.

The working principle of the infrared touch frame 40 is as follows: the infrared PCB 41 drives the transmitting infrared element to transmit infrared rays which penetrate through the filter strip 20 at the transmitting end and emit towards the receiving component correspondingly arranged with the transmitting infrared element, so that the infrared rays can emit towards the infrared receiving element after penetrating through the filter strip 20 at the corresponding receiving end, the infrared receiving element can transmit the received infrared signals to the receiving infrared PCB 41, the transmission of the infrared signals is realized, when a user operates on the infrared touch screen, the user shields the infrared rays transmitted by the infrared transmitting element, the receiving component can not receive the infrared rays transmitted by the infrared transmitting element, and the signal positioning is carried out on the input signals according to the change of the signals.

The utility model also provides an infrared touch display screen, which solves the problem that the infrared touch frame 40 is often corroded by water, improves the waterproof performance, and has the advantages of simple integral structure, high reliability, low cost and convenience in maintenance.

As shown in fig. 1 to 5, in an embodiment of the infrared touch display screen of the present invention, the infrared touch display screen includes the face frame assembly in the above embodiment, and further includes a touch panel 90, where the touch panel 90 is sandwiched between the convex portion 22 and the first pressing portion 31.

In the infrared touch display screen of the embodiment, the mounting cavity 201 is arranged in the adopted filter strip 20, and the infrared touch frame 40 is mounted in the mounting cavity 201 with the periphery closed, so that the infrared touch frame 40 can be prevented from being corroded by moisture; and through convex part 22 and the contact of the front surface of touch panel 90, through first splenium 31 and the second surface of touch panel 90, can reliably fix touch panel 90, prevent that touch panel 90 from rocking from beginning to end in the in-process of transportation, guarantee overall structure reliability.

The face frame assembly in the infrared touch display screen of the embodiment can fix the touch panel 90 while solving the waterproof problem of the infrared touch frame 40.

This infrared touch display screen is when the equipment, supports touch panel 90's front side surface in the rear side surface of convex part 22 earlier, presses first splenium 31 in touch panel 90's rear side surface after that, is connected fixed bolster 30 and frame 10 again, can realize touch panel 90's installation spacing, overall structure is simple, and simple to operate is convenient for place touch panel 90.

In one embodiment, the touch panel 90 is a tempered glass, and the tempered glass is used for protecting the display module.

In other embodiments, the touch panel 90 may be a panel made of other materials capable of protecting the display module, such as a plastic panel.

In one embodiment, the protrusion 22 includes a first position-limiting surface 221, and the filter strip 20 further includes a second position-limiting surface 222 connected to the first position-limiting surface 221; the convex portion 22 comprises a first limiting surface 221, and the convex portion 22 or the base portion 21 comprises a second limiting surface 222 connected with the first limiting surface 221; the first position-limiting surface 221 faces the rear side direction of the filter strip 20, and the second position-limiting surface 222 faces the inner side direction of the filter strip 20; the front side surface of the touch panel 90 abuts against the first stopper surface 221;

the first stopper surface 221 restricts the degree of freedom of the forward movement of the touch panel 90, the second stopper surface 222 restricts the degree of freedom of the outward movement of the touch panel 90, and the first pressing portion 31 restricts the degree of freedom of the backward movement of the touch panel 90.

In this embodiment, the first position-limiting surface 221 and the second position-limiting surface 222 of the filter strip 20 are matched with the first portion of the fixing bracket 30, so that the touch panel 90 can be reliably mounted, and the touch panel 90 is prevented from shaking.

In this embodiment, the filter strip 20 is of a plastic structure, the first position-limiting surface 221 and the second position-limiting surface 222 are made of plastic materials, and the touch panel 90 directly contacts the plastic material with relatively low hardness, so that the abrasion between the touch panel 90 and the position-limiting surfaces can be reduced, and the touch panel 90 is protected; and abrasion-proof materials such as foam and the like do not need to be arranged between the touch panel 90 and the filter strip 20, so that the cost is reduced, and the manufacture is convenient.

In this embodiment, the second position-limiting surface 222 is disposed on the protruding portion 22, the first position-limiting surface 221 of the protruding portion 22 is connected with the second position-limiting surface 222 to form the position-limiting groove 202, and the touch panel 90 is mounted in the position-limiting groove 202.

In other embodiments, the second position-limiting surface 222 may also be disposed on the base 21.

In one embodiment, to facilitate assembly of the touch panel 90, the depth of the limiting groove 202 is configured to be smaller than the thickness of the touch panel 90; that is, the dimension of the second position-limiting surface 222 in the thickness direction of the infrared touch display screen is smaller than the thickness of the touch panel 90.

When installing the touch panel 90, the face frame assembly is generally placed on the console such that the first position-limiting surface 221 faces upward, and the touch panel 90 is lowered into the position-limiting groove 202 by a suction cup or other means.

Because need guarantee that touch panel 90 can put to spacing inslot 202, clearance fit between touch panel 90's the outer peripheral face and the spacing face 222 of second, but this partial clearance is very little, if spacing groove 202 degree of depth is too big, touch panel 90 need transfer longer stroke, and touch panel 90 transfers the in-process, the spacing face 222 of second can cause the hindrance, is difficult to accomplish touch panel 90's installation. In this embodiment, the depth of the limiting groove 202 is configured to be smaller than the thickness of the touch panel 90, so that the lowering stroke of the touch panel 90 is reduced, and the touch panel 90 can be easily mounted in the limiting groove 202.

In one embodiment, in order to reduce the moving distance of the touch panel 90 when the touch panel is mounted in the limiting groove 202, a clearance groove 203 is provided on the inner side of the filter strip 20.

In this embodiment, the second limiting surface 222 is disposed on the convex portion 22; the convex portion 22 further includes a first dislocation surface 223, and the filter strip 20 further includes a second dislocation surface 211; the first position-limiting surface 221, the second position-limiting surface 222, the first avoiding surface 223 and the second avoiding surface 211 are connected in sequence;

in the horizontal direction of the infrared touch display screen, the first avoiding surface 223 extends from the second limiting surface 222 to the outside direction; in the thickness direction of the infrared touch display screen, the second avoiding surface 211 extends from the first avoiding surface 223 to the rear side direction; the first avoiding surface 223 and the second avoiding surface 211 are connected to form the avoiding groove 203.

In this embodiment, the avoiding groove 203 is formed in the filter strip 20 to avoid an outward direction, so as to provide an installation space for the touch panel 90, and the touch panel 90 is convenient to install.

In the present embodiment, the second avoiding surface 211 is provided on the base 21; by such an arrangement, the avoiding groove 203 can be formed, and the whole structure is more compact.

In the present embodiment, the spacing groove 202 is connected to the avoiding groove 203 to form two steps.

In other embodiments, the second avoiding surface 211 may be disposed on the convex portion 22.

In one embodiment, in order to more reliably mount the touch panel 90, the touch panel further includes an adhesive member 60, wherein the adhesive member 60 includes a buffer substrate and adhesive layers formed on opposite sides of the buffer substrate; the adhesive member 60 is connected to the touch panel 90 through one adhesive layer, and the adhesive member 60 is connected to the other adhesive layer first pressing portion 31.

In this embodiment, the cushion substrate is foam; the adhesive member 60 is a double-sided adhesive tape of foam.

In other embodiments, the buffer substrate may also be made of a material with certain elasticity, such as high temperature resistant plastic.

In this embodiment, the fixing bracket 30 is fixed to the bezel 10 by the fastening member 50, and the touch panel 90 is attached to the fixing bracket 30 by the adhesive member 60, so that the touch panel 90 can be fixed more reliably.

The infrared touch display screen is a commercial display screen, can be a touch display screen applied to the fields of advertisement, self-service, meeting, teaching and the like, and can be but is not limited to a touch query all-in-one machine, an information display terminal, a meeting panel and a teaching panel.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings, and are used for convenience of description and simplicity of operation only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A face frame assembly with good waterproof performance is characterized by comprising:

a frame (10) provided with an embedding groove (11); a groove opening communicated with the embedding groove (11) is formed on the inner side of the frame (10) in the width direction;

a light filtering strip (20) provided with a mounting cavity (201); the light filtering strip (20) comprises a base part (21) and a convex part (22), the base part (21) is embedded in the embedding groove (11), and the convex part (22) extends out of the embedding groove (11) from the groove opening;

an infrared touch frame (40) installed in the installation cavity (201);

a fixing bracket (30) connected to the frame (10); the fixing bracket (30) comprises a first pressing part (31), and a touch panel (90) mounting gap is formed between the first pressing part (31) and the convex part (22).

2. The waterproof good face frame assembly of claim 1, characterized in that the embedding slot (11) limits the freedom of the filter strip (20) to move forwards, backwards and outwards;

the fixing support (30) further comprises a second pressing portion (32) connected with the first pressing portion (31), the inner side surface of the base portion (21) is abutted to the second pressing portion (32), and the second pressing portion (32) limits the degree of freedom of inward movement of the light filter strip (20).

3. The waterproof good face frame assembly of claim 2, further comprising a fastener (50), wherein the fixing bracket (30) is fixed to the bezel (10) by the fastener (50).

4. The face frame assembly with good waterproof performance of claim 3, wherein the infrared touch frame (40) comprises an infrared PCB (41), the light filtering strip (20) comprises a clamping groove (23) formed in the wall of the installation cavity (201), and the infrared PCB (41) is clamped into the clamping groove (23).

5. An infrared touch display screen, characterized by comprising the good waterproof face frame assembly of any one of claims 1 to 4, and further comprising a touch panel (90), wherein the touch panel (90) is sandwiched between the convex portion (22) and the first pressing portion (31).

6. The infrared touch display of claim 5, wherein the protrusion (22) comprises a first stop surface (221), and the protrusion (22) or the base (21) comprises a second stop surface (222) connected to the first stop surface (221); the first limit surface (221) faces the rear side direction of the filter strip (20), and the second limit surface (222) faces the inner side direction of the filter strip (20); the front side surface of the touch panel (90) is abutted against the first limit surface (221);

the first stopper surface (221) restricts the degree of freedom of forward movement of the touch panel (90), the second stopper surface (222) restricts the degree of freedom of outward movement of the touch panel (90), and the first pressing portion (31) restricts the degree of freedom of rearward movement of the touch panel (90).

7. The infrared touch display screen according to claim 6, wherein the first position-limiting surface (221) and the second position-limiting surface (222) are connected to form a position-limiting groove (202), and the touch panel (90) is installed in the position-limiting groove (202); the depth of the limiting groove (202) is smaller than the thickness of the touch panel (90).

8. The infrared touch screen of claim 6, wherein the second stop surface (222) is disposed on the protrusion (22);

the convex portion (22) further comprises a first dislocation surface (223), and the base portion (21) or the convex portion (22) further comprises a second dislocation surface (211); the first limit surface (221), the second limit surface (222), the first avoidance surface (223) and the second avoidance surface (211) are connected in sequence;

the first avoiding surface (223) extends from the second limiting surface (222) to the outer side direction; the second avoiding surface (211) extends from the first avoiding surface (223) in the rear direction.

9. The infrared touch display screen of claim 6, further comprising an adhesive member (60), the adhesive member (60) comprising a buffer substrate and adhesive layers formed on opposite sides of the buffer substrate; the pasting piece (60) is connected with the touch panel (90) through the pasting layer on one side, and the pasting piece (60) is connected through the first pressing part (31) of the pasting layer on the other side.

10. The infrared touch display screen according to any one of claims 5 to 9, the touch panel (90) being tempered glass.