WO2020168802A1

WO2020168802A1 - Touch bezel and touch display screen

Info

Publication number: WO2020168802A1
Application number: PCT/CN2019/126373
Authority: WO
Inventors: 袁嘉斌
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2019-02-19
Filing date: 2019-12-18
Publication date: 2020-08-27
Also published as: CN209400996U

Abstract

A touch bezel and a touch display screen. The touch bezel comprises a bezel (10), a filter strip (20), an infrared PCB (30), and a touch glass (40); the bezel (10) is provided with an accommodating slot (11) for mounting the infrared PCB (30); one of the filter strip (20) is mounted on one side of a slot opening, and the other end of the filter strip (20) is mounted on an edge of the touch glass (40) in cooperation with the other side of the slot opening; the infrared PCB (30) is located outside the edge of the touch glass (40); the touch glass (40) has a writing surface (41), and the filter strip (20) is located on one side of the writing surface (41); a light emission direction of the infrared PCB (30) and the writing surface (41) are parallel and close to each other. By means of the touch bezel, the infrared touch writing height is minimized, and the writing experience is improved.

Description

Touch frame and touch screen

This application claims the priority of the patent application filed to the State Intellectual Property Office of China on February 19, 2019 with the application number of 201920214739.0 and the invention title of "touch frame and touch screen".

Technical field

This application relates to the field of touch technology, in particular to a touch frame and a touch display screen.

Background technique

With the development of technology, more and more people are exposed to touch technology. At present, the infrared induction height (writing height) of infrared touch display devices is generally greater than 3.5mm, and even some products have infrared writing height greater than 4.5mm. Users are writing At times, the sense of dangling is serious and the writing experience is poor; therefore, continuously improving the user’s writing experience and continuously reducing the height of touch writing is an inevitable development trend.

Summary of the invention

The purpose of the present application is to provide a touch frame and a touch display screen. The touch frame realizes the minimization of infrared touch writing height and improves the writing experience.

The technical scheme is as follows:

Touch frame, including frame, filter strip, infrared PCB, touch glass, the frame has a accommodating slot for installing infrared PCB, one end of the filter strip is installed on one side of the slot, and the other end of the filter strip is connected to the other of the slot The side mating is installed on the edge of the touch glass, and the infrared PCB is located outside the edge of the touch glass; the touch glass has a writing surface, and the filter strip is located on one side of the writing surface. The light emission direction of the infrared PCB and the writing surface are parallel and close to each other.

The frame includes an outer frame and an inner frame, the outer frame and the inner frame are matched and snap-connected to form the accommodating groove, and the filter strip is installed on the outer frame.

The inner frame is provided with a limit card slot, the outer frame is provided with a limit card buckle, and the outer frame is matched and snap-connected with the limit card slot of the inner frame through the limit card buckle.

The accommodating groove includes a first groove wall and a second groove wall, the first groove wall is located on the outer frame, and the second groove wall is located on the inner frame; the filter strip is installed on the first On a groove wall, the infrared PCB is located between the first groove wall and the second groove wall.

The first groove wall is provided with a first card slot, the second groove wall is provided with a second card slot, and both ends of the infrared PCB are respectively installed and connected to the first card slot and the second card slot .

A boss is provided on the second groove wall. The boss includes a first side and a second side. The first and second sides are two opposite sides of the boss. The infrared PCB is mounted on On the first side surface of the boss, the side surface of the edge of the touch glass is in contact with the second side surface.

The second side surface forms a glass installation slot with the second groove wall in the direction of the notch, and the edge of the touch glass is matched and installed and connected with the glass installation slot.

The infrared PCB includes a board and an LED light, the board is mounted on the first side surface, the LED light is mounted on the board, and is located between the boss and the first groove wall between.

The LED light is located between the board card and the side surface of the edge of the touch glass to connect with the board card.

The arrangement direction of the board is parallel to the side surface of the edge of the touch glass, and the LED light is vertically installed on the back of the board.

The notch of the accommodating groove is provided with a positioning groove on one side of the outer frame, one end of the filter strip is matched and installed with the positioning groove, and the other end of the filter strip is connected to the touch glass The writing surface is in contact with each other.

The touch display screen includes a backlight module and the aforementioned touch frame. A positioning bar is arranged around the backlight module, and a positioning through slot matching the positioning bar is provided at the bottom of the frame. The positioning through groove The orientation of the opening is opposite to the orientation of the writing surface, and the touch frame is installed on the positioning bar of the backlight module through the positioning through slot.

It should be noted:

The aforementioned "parallel to each other" refers to relatively parallel, not absolute parallel.

The aforementioned "vertical" refers to relative vertical, not absolute vertical.

The aforementioned "first and second" do not represent a specific number or order, but are only used to distinguish names.

The aforementioned "installation" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood under specific circumstances.

The advantages or principles of this application are described below:

1. The touch frame includes frame, filter strip, infrared PCB, touch glass. The light emission direction of infrared PCB is parallel to the writing surface and close to each other, so that the light emission of infrared PCB can not only have enough energy signal to pass through the writing surface, but also It can reach the writing surface infinitely, so as to minimize the writing height of infrared touch. Since the infrared PCB is located outside the edge of the touch glass, it is convenient to adjust the distance between the light emission direction of the infrared PCB and the writing surface, so that the two are infinitely close; The light emission direction of the infrared PCB passes through the side of the writing surface, so the filter bar is set on the side of the writing surface.

The touch frame minimizes the writing height of infrared touch and improves writing experience.

2. The frame is composed of an outer frame and an inner frame, which facilitates the removal of the frame and improves the production efficiency.

3. The outer frame is matched and connected with the limit card slot of the inner frame through the limit buckle, which makes the installation and disassembly of the frame more convenient and saves manpower and material resources.

4. The infrared PCB is located between the first groove wall and the second groove wall to facilitate the adjustment of the position of the infrared PCB.

5. Preferably, the first groove wall and the second groove wall are respectively provided with a first card slot and a second card slot, and the two ends of the infrared PCB are respectively installed on the first card slot and the second card slot to facilitate the fixing of the infrared PCB Installed in the containing tank.

6. Preferably, a boss is provided on the second groove wall. The boss includes a first side and a second side. The infrared PCB is installed on the first side of the boss, which makes the infrared PCB fixed and installed more convenient. First install the infrared PCB on the first side of the boss of the inner frame, and then install the outer frame in the snap fit; the side of the touch glass edge is in contact with the second side, so that the installation position of the inner frame and the touch glass edge is more accurate.

7. The edge of the touch glass matches the installation and connection of the glass installation slot, which is convenient for the installation and connection of the edge of the touch glass and the inner frame. When using, you can paste double-sided adhesive or liquid glue on the glass installation slot, and then install the touch Glass makes the connection between the two more stable.

8. The infrared PCB includes a board card and an LED lamp. When installing, a plurality of first installation through holes can be provided on the board card, and then the first installation through hole can be connected to the boss of the inner frame by a screw; the LED lamp is located Between the boss and the first groove wall, it is convenient to adjust the distance between the light emitting direction of the LED lamp and the writing surface.

9. Preferably, the LED light is located between the board and the side surface of the touch glass edge to save the width of the frame.

10. The layout direction of the board card is parallel to the side surface of the touch glass edge, so that the width of the board card to the side surface of the touch glass edge is minimized, and the width of the frame can be saved.

11. The notch of the accommodating groove is provided with a positioning groove on one side of the outer frame, and one end of the filter strip is matched and installed with the positioning groove to make the installation and connection of the filter strip and the frame more stable.

12. The touch display screen includes the backlight module and the aforementioned touch frame. The touch frame is installed on the positioning bar of the backlight module through the positioning slot, so that the installation of the backlight module and the touch frame is more stable and the positioning is more accurate.

Description of the drawings

FIG. 1 is a schematic cross-sectional view of a touch frame according to an embodiment of the present application.

FIG. 2 is a second schematic cross-sectional view of the touch frame of the embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of a touch display screen according to an embodiment of the present application.

Description of reference signs:

10. Frame, 11, accommodating slot, 12, outer frame, 121, limit buckle, 122, positioning slot, 13, inner frame, 131, limit card slot, 132, boss, 14, glass installation slot , 15. Positioning through slot, 20, filter strip, 30, infrared PCB, 31, board card, 32, LED light, 40, touch glass, 41, writing surface, 50, backlight module, 51, positioning bar.

detailed description

The embodiments of the application are described in detail below.

As shown in Figures 1 and 2, the touch frame includes a frame 10, a filter strip 20, an infrared PCB 30, and a touch glass 40. The frame 10 has a receiving slot 11 for installing the infrared PCB 30, and one end of the filter strip 20 is installed in the notch. On one side, the other end of the filter strip 20 is mounted on the edge of the touch glass 40 in cooperation with the other side of the notch, and the infrared PCB 30 is located outside the edge of the touch glass 40; the touch glass 40 has a writing surface 41, and the filter strip 20 is located on the side of the writing surface 41, and the light emission direction of the infrared PCB 30 and the writing surface 41 are parallel to each other.

Wherein, the frame 10 includes an outer frame 12 and an inner frame 13. The outer frame 12 and the inner frame 13 are matched and snap-connected to form a receiving slot 11, and the filter strip 20 is installed on the outer frame 12; the inner frame 13 is provided with a limit card slot 131 , The outer frame 12 is provided with a limit buckle 121, and the outer frame 12 is mated and connected to the limit buckle 131 of the inner frame 13 through the limit buckle 121; preferably, the touch frame also includes a first screw, and the inner frame 13 is provided with a first screw hole, the outer frame 12 is provided with a first through hole, and the first screw passes through the first through hole to connect with the first screw hole; preferably, the frame 10 is made of aluminum material;

The accommodating groove 11 includes a first groove wall and a second groove wall. The first groove wall is located on the outer frame 12 and the second groove wall is located on the inner frame 13; the filter strip 20 is installed on the first groove wall, and the infrared PCB 30 is located Between the first groove wall and the second groove wall;

A boss 132 is provided on the second groove wall. The boss 132 includes a first side and a second side. The first and second sides are opposite sides of the boss 132. The infrared PCB 30 is installed on the first side of the boss 132. Above, the side surface of the edge of the touch glass 40 is in contact with the second side surface;

The second side faces the notch and forms a glass installation slot 14 with the second groove wall. The edge of the touch glass 40 matches the glass installation slot 14 for installation and connection; preferably, the edge of the touch glass 40 is made of double-sided adhesive or liquid glue Glue on the glass installation slot 14;

The infrared PCB 30 includes a board 31 and an LED light 32. The board 31 is installed on the first side surface, and the LED light 32 is installed on the board 31 and is located between the boss 132 and the first groove wall; preferably , The touch frame also includes a second screw, a second screw hole is provided on the first side surface, a second through hole is provided on the board card 31, and the second screw passes through the second through hole and is connected to the second screw hole; preferably The LED light 32 is located between the board 31 and the side surface of the touch glass 40 to connect to the board 31; preferably, the arrangement direction of the board 31 and the side surface of the touch glass 40 are parallel to each other, and the LED light 32 is installed vertically on the board. 31 on the back;

The notch of the accommodating groove 11 is provided with a positioning groove 122 on one side of the outer frame 12, one end of the filter strip 20 is matched and installed and connected with the positioning groove 122, and the other end of the filter strip 20 is in contact with the writing surface 41 of the touch glass 40 Preferably, the filter strip 20 is adhered to the positioning groove 122 by double-sided adhesive or liquid adhesive.

Another embodiment (not shown in the figure):

The first groove wall is provided with a first card slot, and the second groove wall is provided with a second card slot. Both ends of the infrared PCB 30 are respectively installed and connected with the first card slot and the second card slot.

As shown in FIG. 3, the touch display screen includes a backlight module 50 and the aforementioned touch frame. A positioning bar 51 is provided around the backlight module 50, and a positioning bar 51 is provided at the bottom of the frame 10 to match the positioning bar 51. Through the notch 15, the orientation of the positioning through notch 15 is opposite to the orientation of the writing surface 41, and the touch frame is installed on the positioning bar 51 of the backlight module 50 through the positioning through notch 15.

The above embodiment has the following advantages:

1. The touch frame includes frame 10, filter strip 20, infrared PCB 30, touch glass 40. The light emission direction of infrared PCB 30 and writing surface 41 are parallel and close to each other, so that the light emission of infrared PCB 30 can have enough energy signals to pass. The writing surface 41 can be infinitely close to the writing surface 41, thus minimizing the writing height of infrared touch. Since the infrared PCB 30 is located outside the edge of the touch glass 40, it is convenient to adjust the distance between the light emission direction of the infrared PCB 30 and the writing surface 41. Make the two close infinitely; since the light emission direction of the infrared PCB 30 passes on the side of the writing surface 41, the filter strip 20 is arranged on the side of the writing surface 41.

2. The frame 10 is composed of an outer frame 12 and an inner frame 13, which facilitates the removal of the frame 10 and improves production efficiency.

3. The outer frame 12 is mated and snap-connected with the limit card slot 131 of the inner frame 13 through the limit buckle 121, which makes the installation and disassembly of the frame 10 more convenient and saves manpower and material resources.

4. The infrared PCB 30 is located between the first groove wall and the second groove wall to facilitate the adjustment of the position of the infrared PCB 30.

5. Preferably, the first groove wall and the second groove wall are respectively provided with a first card slot and a second card slot, and both ends of the infrared PCB 30 are respectively mounted on the first card slot and the second card slot to facilitate the fixing of the infrared PCB 30 Installed in the containing tank 11.

6. Preferably, a boss 132 is provided on the second groove wall. The boss 132 includes a first side surface and a second side surface. The infrared PCB 30 is installed on the first side surface of the boss 132, which makes the fixed installation of the infrared PCB 30 more convenient. When in use, first install the infrared PCB 30 on the first side of the boss 132 of the inner frame 13 and then install the outer frame 12 in a snap fit; the side of the edge of the touch glass 40 is in contact with the second side, so that the inner frame 13 and the touch glass The installation position of the 40 edge is more accurate.

7. The edge of the touch glass 40 is matched with the glass installation slot 14 for installation and connection, which is convenient for the installation and connection of the edge of the touch glass 40 and the inner frame 13. When in use, double-sided adhesive or liquid glue can be attached to the glass installation slot 14 , And then install the touch glass 40 to make the connection between the two more stable.

8. The infrared PCB 30 includes a board 31 and an LED lamp 32. During installation, a plurality of first installation through holes can be provided on the board 31, and then screws are passed through the first installation through holes and the boss 132 of the inner frame 13 Connection; the LED lamp 32 is located between the boss 132 and the first groove wall, which facilitates adjusting the distance between the light emitting direction of the LED lamp 32 and the writing surface 41.

9. Preferably, the LED lamp 32 is located between the board 31 and the side surface of the edge of the touch glass 40 to save the width of the frame 10.

10. The arrangement direction of the board card 31 and the side surface of the edge of the touch glass 40 are parallel to each other, so that the width of the board card 31 to the side surface of the edge of the touch glass 40 is minimized, and the width of the frame 10 can be further saved.

11. The notch of the accommodating groove 11 is provided with a positioning groove 122 on one side of the outer frame 12, and one end of the filter strip 20 is matched and installed with the positioning groove 122 to make the installation and connection of the filter strip 20 and the frame 10 more stable.

12. The touch display screen includes the backlight module 50 and the aforementioned touch frame. The touch frame is installed on the positioning bar 51 of the backlight module 50 through the positioning through notch 15 to make the installation of the backlight module 50 and the touch frame more stable. Positioning is more accurate.

The above are only specific embodiments of this application, and do not limit the scope of protection of this application; any substitutions and improvements made on the basis of not violating the concept of this application belong to the scope of protection of this application.

Claims

The touch frame is characterized by comprising a frame, a filter strip, an infrared PCB, and a touch glass. The frame has a accommodating slot for installing the infrared PCB. One end of the filter strip is installed on the side of the notch, and the other end of the filter strip is connected to the groove The other side of the mouth is matched and installed on the edge of the touch glass, and the infrared PCB is located outside the edge of the touch glass; the touch glass has a writing surface, and the filter strip is located on one side of the writing surface. The light emission direction of the infrared PCB and the writing surface are mutually Parallel approach.
The touch frame of claim 1, wherein the frame comprises an outer frame and an inner frame, the outer frame and the inner frame are matched and snap-connected to form the accommodating groove, and the filter strip Installed on the outer frame.
The touch frame of claim 2, wherein the inner frame is provided with a limit card slot, the outer frame is provided with a limit buckle, and the outer frame passes through the limit buckle and the limit card of the inner frame The slots match the snap-fit connection.
The touch frame of claim 2, wherein the accommodating groove comprises a first groove wall and a second groove wall, the first groove wall is located on the outer frame, and the second groove wall is located on the On the inner frame; the filter strip is installed on the first groove wall, and the infrared PCB is located between the first groove wall and the second groove wall.
The touch frame of claim 4, wherein the first groove wall is provided with a first card slot, the second groove wall is provided with a second card slot, and both ends of the infrared PCB are respectively Installed and connected with the first card slot and the second card slot.
The touch frame of claim 4, wherein a boss is provided on the second groove wall, and the boss includes a first side surface and a second side surface, and the first side surface and the second side surface are On two opposite sides of the boss, the infrared PCB is mounted on the first side of the boss, and the side of the edge of the touch glass is in contact with the second side.
The touch frame according to claim 6, wherein the second side faces the slot and forms a glass installation slot with the second groove wall, and the edge of the touch glass matches the glass installation slot Install the connection.
8. The touch frame of claim 6, wherein the infrared PCB comprises a board card and an LED light, the board card is installed on the first side surface, and the LED light is installed on the board card, And located between the boss and the first groove wall.
8. The touch frame of claim 8, wherein the LED light is located between the board card and the side surface of the touch glass edge and is connected to the board card.
8. The touch frame of claim 8, wherein the arrangement direction of the board card and the side surface of the edge of the touch glass are parallel to each other, and the LED lamp is vertically installed on the back of the board card.
The touch frame according to any one of claims 2 to 10, wherein the slot of the accommodating groove is provided with a positioning groove on one side of the outer frame, and one end of the filter strip is connected to the positioning groove. The grooves are matched and installed and connected, and the other end of the filter strip is in contact with the writing surface of the touch glass.
The touch display screen is characterized by comprising a backlight module and the touch frame according to any one of claims 1 to 11, a positioning bar is provided around the backlight module, and the bottom of the frame is provided with the positioning bar. The positioning through notch that matches the bar, the orientation of the positioning through notch is opposite to the direction of the writing surface, and the touch frame is installed on the positioning bar of the backlight module through the positioning through notch.