CN212411178U - Touch frame and touch screen - Google Patents

Abstract

The utility model provides a touch frame and touch-sensitive screen. The utility model provides a touch frame, including enclosing the frame of establishing at the side of display screen, still include circuit board, LED lamp, components and parts and the connector assembly that sets up in the frame, the face of circuit board is parallel with the side of display screen, and LED lamp, components and parts and connector assembly all establish at a side surface of circuit board towards the display screen. The utility model provides a width of touch-sensitive frame is less, and the pleasing to the eye degree of touch-sensitive screen is better.

Description

Touch frame and touch screen

Technical Field

The utility model relates to a touch display technical field especially relates to a touch frame and touch-sensitive screen.

Background

Touch screens (also called touch screens and touch panels) are inductive display devices capable of receiving input signals such as contacts. When the graphic button on the screen is touched, the tactile feedback system on the screen can drive various connecting devices according to a pre-programmed program, so that the tactile feedback system can replace a mechanical button panel and produce vivid video and audio effects by means of a display picture. As a latest computer input device, the touch screen is the simplest, convenient and natural interpersonal interaction mode at present.

An infrared touch screen is a common type of touch screen, and is composed of infrared emitting and receiving sensing elements mounted on an outer frame of the touch screen, and an infrared detection network is formed on the surface of the screen, so that any touch object can change the infrared rays on the contacts to realize the operation of the touch screen. Fig. 1 is a schematic structural diagram of a device in a touch frame in the prior art. As shown in fig. 1, in an outer frame (touch frame) of a conventional touch screen, an infrared lamp and an in-line connector are respectively disposed on two side surfaces of a PCB, and other components are further disposed on one side of the PCB, on which the in-line connector is disposed; the whole thickness of the PCB is mainly determined by the sum of the thicknesses of the infrared lamp, the PCB and the direct-insert connector (or a component).

However, the overall thickness of the existing PCB is generally large, which results in a large width of the touch frame, and cannot meet the demand of the touch screen for development towards lightness and thinness, which affects the beauty of the touch screen.

SUMMERY OF THE UTILITY MODEL

The utility model provides a touch frame and touch-sensitive screen, the width of touch frame is less, and the pleasing to the eye degree of touch-sensitive screen is better.

On the one hand, the utility model provides a touch frame, this touch frame still include circuit board, LED lamp, components and parts and the connector assembly that sets up in the frame including enclosing the frame of establishing at the side of display screen, and the face of circuit board is parallel with the side of display screen, and LED lamp, components and parts and connector assembly all establish at a side surface of circuit board towards the display screen.

In one possible embodiment, the connector assembly includes at least FFC receptacles, which are connected by FFCs on adjacent circuit boards.

In one possible embodiment, two FFC sockets are provided on each side of the circuit board, and the circuit board is connected to the adjacent circuit board through the two FFC sockets.

In a possible embodiment, the connector assembly further comprises a direct-insertion type connector, the direct-insertion type connector is arranged at the end part of the circuit board, and adjacent circuit boards which are positioned on the same side of the display screen are connected with each other through the FFC socket and the direct-insertion type connector.

In one possible embodiment, the direct plug type connector includes a plug and a socket, and in two adjacent circuit boards, one end of the plug is provided, and the other end of the socket is provided, and the plug is inserted into the socket.

In a possible implementation mode, a plurality of contact pins are arranged on the plug, a plurality of jacks corresponding to the contact pins one by one are arranged in the socket, and the contact pins extend into the jacks.

In one possible embodiment, the pins on the plug are arranged in a single row.

In one possible embodiment, the pins of the single row are parallel to the side of the display screen.

In one possible implementation mode, the LED lamp, the component and the connector assembly are arranged on the circuit board in a surface mounting mode.

On the other hand, the utility model provides a touch screen, this touch screen include the display screen and as above the touch-sensitive frame, the side at the display screen is enclosed to the touch-sensitive frame.

The utility model provides a touch frame and touch-sensitive screen, touch frame comprise frame and the circuit board that sets up in the frame, are equipped with LED lamp, components and parts and connector assembly on the circuit board, through making the face of circuit board and the side of display screen parallel, and the LED lamp is established at the side surface of circuit board towards the display screen, and the light that like this LED lamp sent can shine in the display screen to realize the touch-sensitive screen operation; wherein, components and parts and connector subassembly homonymy set up, and the whole thickness of circuit board is decided by the thickness of circuit board self and the thickness sum of the great person of thickness among LED lamp, components and parts and the connector subassembly three like this, and the whole thickness of circuit board is less, and then can reduce the width of touch-sensitive frame, makes the whole narrower frame of touch-sensitive screen change, promotes the pleasing to the eye degree of touch-sensitive screen.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, a brief description will be given below of the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention. For a person skilled in the art, without inventive effort, further figures can be obtained from these figures.

FIG. 1 is a schematic diagram of an internal structure of a touch frame in the prior art;

FIG. 2 is a schematic diagram of the layout of devices on a circuit board in the touch frame shown in FIG. 1;

FIG. 3 is a partial schematic view of FIG. 1 at A;

FIG. 4 is a partial schematic view of FIG. 1 at B;

FIG. 5 is a top view of FIG. 4;

fig. 6 is a schematic layout diagram of devices on a circuit board in a touch frame according to a first embodiment of the present invention;

fig. 7 is a partial schematic view illustrating connection between adjacent circuit boards according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a direct plug connector according to an embodiment of the present invention;

fig. 9 is a top view of fig. 8.

Description of reference numerals:

1-a touch frame; 2-a circuit board; 21-infrared lamp; 22-a connector; 23-a component;

100-frame; 200-a circuit board; 300-LED lamps; 400-components; 500-a connector assembly; 510-FFC jack; 511-FFC; 520-a straight-through type connector; 521-a plug; 5211-Pin; 522-a socket; 5221-plug hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

With the increasing use of computers as information sources, touch screens have become attractive new multimedia interaction devices in the market due to the advantages of easy use, firmness, durability, high response speed, space saving and the like.

Among the touch screens, the infrared touch screen is most widely used, and the infrared touch screen performs a touch screen operation by forming an infrared detection net on the surface of the screen so that any touch object can change the infrared ray on the touch point.

Example one

FIG. 1 is a schematic diagram of an internal structure of a touch frame in the prior art; FIG. 2 is a schematic diagram of the layout of devices on a circuit board in the touch frame shown in FIG. 1; FIG. 3 is a partial schematic view of FIG. 1 at A; FIG. 4 is a partial schematic view of FIG. 1 at B; fig. 5 is a top view of fig. 4.

As shown in fig. 1 to 5, a touch frame 1 is installed on the periphery of the infrared touch screen, a circuit board 2 is arranged in the touch frame 1, infrared transmitting tubes and infrared receiving tubes are arranged on the four sides of the screen on the circuit board 2, and the infrared transmitting tubes and the infrared receiving tubes are in one-to-one correspondence to form an infrared matrix which is crossed horizontally and vertically. When a user touches the screen, two infrared rays in the transverse direction and the vertical direction passing through the position can be blocked by fingers, so that the position of a touch point on the screen can be judged. Any touching object can change the infrared ray on the touch point to realize the touch screen operation.

Specifically, as shown in fig. 2, an infrared lamp 21 is disposed on a circuit board 2 in the touch frame 1, the infrared lamp 21 is used for emitting infrared rays, the infrared lamp 21 is disposed around the screen, and the infrared rays emitted by the infrared lamp 21 irradiate from one side of the screen to the other side of the screen, so that an infrared matrix is formed on the screen in a horizontal-vertical cross manner.

In addition to the infrared lamp 21, a connector 22 is provided on the circuit board 2. Taking the touch frame 1 on one side of the screen as an example, for example, the touch frame 1 is arranged at the bottom end of the screen, and the touch frame 1 at the bottom end of the screen is usually formed by sequentially connecting a plurality of adjacently arranged circuit boards 2 instead of a whole circuit board 2. Wherein the adjacent two circuit boards 2 are electrically connected by the connection between the respective connectors 22.

The connector 22 may be exemplarily disposed at an end portion of the circuit board 2, and end portions of two adjacent circuit boards 2 are opposite to each other, so as to realize connection of the connector 22.

The circuit board 2 may be provided with other components 23, for example, components 23 such as a capacitor, an inductor, and a resistor, and the frequency, power, and the like of the current on the circuit board 2 may be controlled by providing these components 23.

The inductor is used for blocking alternating current and passing direct current; alternating current with higher blocking frequency, alternating current with lower blocking frequency or direct current with zero frequency; the specific passing frequency is determined by inductance. The capacitor is used for blocking direct current and passing alternating current; alternating current with higher passing frequency or direct current with zero frequency is completely blocked; the specific pass frequency is determined by the capacitance. The resistor has no filtering characteristic in theory, so that the resistor has a blocking effect on alternating current and direct current.

Therefore, different components 23 can be arranged on the circuit board 2 according to different characteristic requirements of different screens, and corresponding parameters of the components 23 are set.

As shown in fig. 3, for the connection between the circuit boards 2 positioned at the four corners of the screen, since the circuit boards 2 at the corners are respectively positioned at both sides of the screen, the two circuit boards 2 at the corners are oriented differently, and the two circuit boards 2 are generally perpendicular to each other, it is inconvenient to realize the connection of the two circuit boards 2. The connectors 22 provided on the two circuit boards 2 are usually connected by flexible electrical connection lines to achieve connection between the circuit boards 2 on both sides of the corner of the screen.

As shown in fig. 4, for the connection between the circuit boards 2 located on the same side of the screen, all the circuit boards 2 located on the same side are generally located in the same plane and extend along the same straight line, for example, along the extension direction of the edge of the screen. Taking two adjacent circuit boards 2 as an example, the opposite ends of the two circuit boards 2 can be directly connected by the in-line connector 22, and the connectors 22 on the two circuit boards 2 do not need to be connected by flexible electrical connection wires.

Illustratively, as shown in fig. 4 and 5, the in-line connector 22 includes a plug provided at an end of one of the circuit boards 2 and a receptacle provided at an end of the other circuit board 2 to be mated with the plug. The plug is provided with a pin extending toward the socket, the socket is provided with a jack corresponding to the pin, and the pin extends into the jack to electrically connect the direct-insertion type connector 22.

In order to meet the signal and power requirements of electrical connection between the circuit boards 2, for the two circuit boards 2 on both sides of the corner of the screen, two connectors 22 may be disposed on each circuit board 2, and the connectors 22 on the two circuit boards 2 are connected with each other through flexible electrical connection lines; for two adjacent circuit boards 2 on the same side of the screen, the plug at the end of one circuit board 2 may be in the form of a double-layer pin, and the socket of the other circuit board 2 is correspondingly provided with a double-layer jack.

As shown in fig. 2, in the prior art, the infrared lamp 21 is disposed on one side surface of the circuit board 2, and the connector 22 and the component 23 are disposed on the other side surface of the circuit board 2, so that the overall thickness of the circuit board 2 is determined by the sum of the thickness of the circuit board 2 itself, the height of the infrared lamp 21 and the thickness of the connector 22 (or the component 23), and the overall thickness of the circuit board 2 is relatively thick.

In addition, as described above, the in-line connector 22 adopts a double-layer pin and double-layer socket mating manner, which increases the thickness of the plug and the socket, that is, the thickness of the in-line connector 22, and thus the overall thickness of the circuit board 2 is increased.

The whole thickness of circuit board 2 is great, then can lead to touch frame 1's width great, and this area that can increase the non-display area of touch-sensitive screen is unfavorable for the touch-sensitive screen towards narrow frame development, influences the pleasing to the eye degree of touch-sensitive screen.

Therefore, the embodiment provides the improved touch frame 1, so as to reduce the width of the touch frame 1, narrow the border of the touch screen, and improve the aesthetic property of the touch screen.

Fig. 6 is a schematic layout diagram of devices on a circuit board in a touch frame according to a first embodiment of the present invention; fig. 7 is a partial schematic view illustrating connection between adjacent circuit boards according to an embodiment of the present invention; fig. 8 is a schematic structural diagram of a direct plug connector according to an embodiment of the present invention; fig. 9 is a top view of fig. 8.

As shown in fig. 6 to 9, the touch frame provided in this embodiment includes a frame 100 surrounding a side of the display screen, and further includes a circuit board 200, an LED lamp 300, a component 400, and a connector assembly 500 disposed in the frame 100, where a board surface of the circuit board 200 is parallel to the side of the display screen, and the LED lamp 300, the component 400, and the connector assembly 500 are disposed on a side surface of the circuit board 200 facing the display screen.

As shown in fig. 6, the touch frame of this embodiment includes the frame 100 that encloses the display screen and is disposed on the peripheral side of the display screen, and the frame 100 may be used as the outer frame of the display screen, for example, the frame 100 may be made of metal, plastic or other materials, the frame 100 may include a side wall that faces the side of the display screen, and an extension arm that extends to the front and back of the display screen, and the extension arms on both sides may be formed by bending the side wall, so that the frame 100 may cover the peripheral edge of the display screen, so as to protect the edge of the display screen and form the appearance edge of the touch screen.

A circuit board 200 is arranged in the frame 100, an LED lamp 300 is arranged on the circuit board 200, and the LED lamp 300 is controlled by the circuit board 200. In some embodiments, the LED lamp 300 may be an infrared lamp, and the infrared light emitted from the LED lamp 300 is used to implement a touch screen operation.

Specifically, when the circuit board 200 is disposed, the surface of the circuit board 200 may be parallel to the side of the display screen, so that the width direction of the touch frame corresponds to the thickness direction of the circuit board 200, and the thickness of the circuit board 200 is generally very thin, so that the width of the touch frame may be reduced.

The circuit board 200 may be a rigid circuit board 200, so that the circuit board 200 is fixed in the frame 100, and the circuit board 200 may better define the position of the LED lamp 300. Illustratively, the Circuit Board 200 is a Printed Circuit Board 200 (PCB).

In addition, by disposing the LED lamp 300 on one side surface of the circuit board 200 facing the display screen, the infrared rays emitted from the LED lamp 300 are irradiated to the other side along the display screen surface. Taking the circuit board 200 disposed at the upper end of the display screen as an example, the LED lamp 300 is disposed on a surface of a side of the circuit board 200 facing the display screen, that is, a light emitting surface of the LED lamp 300 faces the display screen, and infrared light emitted by the LED irradiates the bottom end of the display screen along the surface of the display screen.

Similarly, for the circuit board 200 disposed on the left side of the display screen, the infrared light emitted from the LED lamp 300 is irradiated to the right side of the display screen along the surface of the display screen.

In this embodiment, the LED lamps 300 disposed on two adjacent sides of the display screen may be infrared emitting tubes, and the LED lamps 300 on the two sides may emit infrared light; the LED lamps 300 disposed on the other two adjacent sides of the display screen may be infrared receiving tubes, the LED lamps 300 on the two sides are used for receiving infrared light of the LED lamps 300 on the opposite side, and the infrared emitting tubes and the infrared receiving tubes are respectively arranged on the two opposite sides to form an infrared matrix which is crossed horizontally and vertically in a one-to-one correspondence manner.

Therefore, when a user touches the screen, the finger can block two infrared rays in the transverse direction and the vertical direction passing through the position, so that the position of a touch point on the screen can be judged, and the touch screen operation is further realized.

Illustratively, an infrared transmitting tube may be provided on the upper end of the display screen and the circuit board 200 on the left side, and an infrared receiving tube may be provided on the bottom end of the display screen and the circuit board 200 on the right side.

As shown in fig. 6, in this embodiment, a component 400 and a connector assembly 500 are further disposed on the circuit board 200, where the component 400 may be, for example, an inductor, a capacitor, or a resistor, and is not described herein again; the connector assembly 500 is used to connect adjacent circuit boards 200, thereby realizing the series connection of all circuit boards 200 in the bezel 100 to control all LED lamps 300.

The component 400 and the connector assembly 500 are both disposed on the same side as the LED lamp 300, that is, the component 400 and the connector assembly 500 are also disposed on a surface of the circuit board 200 facing the display screen. So configured, the arrangement of the devices on the circuit board 200 is more compact.

More importantly, because the LED lamp 300, the component 400 and the connector assembly 500 are all disposed on the same side of the circuit board 200, the overall thickness of the circuit board 200 (including the thickness of each device on the circuit board 200) is thinner, and specifically, the overall thickness of the circuit board 200 is determined by the thickness of the circuit board 200 itself and the height of the higher one of the LED lamp 300, the component 400 and the connector assembly 500.

The overall thickness of circuit board 200 is reduced as compared to the arrangement of components 400 and connector assemblies 500 on the other side surface of circuit board 200, such that circuit board 200 occupies less space and facilitates the arrangement of circuit board 200 within bezel 100. In addition, the circuit board 200 is parallel to the side of the display screen, so that the thickness of the whole circuit board 200 in the width direction of the frame 100 is smaller, the width of the frame 100 can be effectively reduced, the width of the touch frame is smaller, the touch screen is narrower in the frame 100, and the attractiveness of the touch screen can be improved.

Illustratively, among the LED lamp 300, the component 400 and the connector assembly 500, the height of the LED lamp 300 is the largest, and the overall thickness of the circuit board 200 is the sum of the thickness of the circuit board 200 and the height of the LED lamp 300.

In order to further reduce the overall thickness of the circuit board 200, in this embodiment, the LED lamp 300, the component 400, and the connector assembly 500 may be all disposed on the circuit board 200 in a patch manner, that is, the LED lamp 300, the component 400, and the connector assembly 500 are all in a patch type structure.

By providing the surface mount type LED lamp 300, the component 400, and the connector assembly 500, the thickness of these components is smaller than that of the in-line type LED lamp 300, the component 400, and the connector assembly 500, and thus the overall thickness of the circuit board 200 can be further reduced.

In addition, compared with a direct-insert type device, the width of the patch type LED lamp 300, the component 400 and the connector assembly 500 is smaller, so that the whole thickness and the width of the circuit board 200 are smaller, the space occupied by the circuit board 200 in the frame 100 can be further reduced, the width of the frame 100 can be reduced, the thickness of the frame 100 in the front-back direction of the display screen can be reduced, and the touch screen is lighter and thinner.

As shown in fig. 6 in combination with fig. 2, in the present embodiment, the connector assembly 500 is used to connect two adjacent circuit boards 200, and according to the position of the circuit board 200 corresponding to the display screen, the two adjacent circuit boards 200 may be two adjacent circuit boards 200 located on the same side of the display screen, or two adjacent circuit boards 200 located at the corners of the display screen on two adjacent sides of the display screen.

In this regard, in one possible embodiment, the connector assembly 500 may include at least FFC receptacles 510, with the FFC receptacles 510 on adjacent circuit boards 200 connected by FFC 511. In this embodiment, two circuit boards 200 located at both sides of the corner of the display screen or two adjacent circuit boards 200 located at the same side of the display screen can be connected by the FFC socket 510.

Specifically, the FFC sockets 510 are disposed on two adjacent circuit boards 200, and the FFC sockets 510 on the two circuit boards 200 are connected through the FFC 511; wherein, FFC511 is flexible flat cable, and english is all called: a Flexible Flat Cable.

Since the FFC socket 510 is connected by the flexible FFC511, there is no limitation on the position of the FFC socket 510 on the circuit board 200 and the orientation of the adjacent circuit board 200, and thus the FFC socket can be applied to both the circuit boards 200 located on both sides of the corner of the display screen and the two adjacent circuit boards 200 located on the same side of the display screen.

As shown in fig. 2, for two circuit boards 200 located at both sides of the corner of the display screen, since the two circuit boards 200 are not in the same plane, for example, the two circuit boards 200 are perpendicular to each other, it is suitable to provide an FFC socket 510 for connecting the FFC sockets 510 of the two circuit boards 200 through an FFC 511.

When one FFC socket 510 is disposed in each of two adjacent circuit boards 200 for connection, there may be a case where sufficient current power cannot be provided for the circuit board 200, so in this embodiment, two FFC sockets 510 may be disposed on two sides of the circuit board 200, and the circuit board 200 is connected to the adjacent circuit board 200 through the two FFC sockets 510.

By respectively arranging two FFC sockets 510 in two adjacent circuit boards 200 and connecting the FFC sockets 510 on the adjacent circuit boards 200 in pairs, enough current signals can be provided for the circuit boards 200 to ensure that the LED lamps 300 on the circuit boards 200 work normally, so as to ensure the touch effect of the touch screen.

It is understood that two FFC sockets 510 are provided on both sides of the circuit board 200, respectively, since the circuit board 200 needs to be connected to the adjacent circuit boards 200 on both sides. Here, since the FFC sockets 510 are connected to each other by the flexible FFC511, the position of the FFC socket 510 is not particularly limited, and in order to reduce the width of the circuit board 200, a plurality of FFC sockets 510 on the same circuit board 200 may be disposed at intervals along the length direction of the circuit board 200.

In another possible embodiment, the connector assembly 500 may further include an in-line connector 520, wherein the in-line connector 520 is disposed at an end of the circuit boards 200, and adjacent circuit boards 200 on the same side of the display screen are connected to each other through the FFC socket 510 and the in-line connector 520.

As shown in fig. 7, for two adjacent circuit boards 200 on the same side of the display screen, if only one FFC socket 510 is disposed on each circuit board 200 to connect the two circuit boards 200, the current requirement in the circuit boards 200 may not be satisfied. In this embodiment, in addition to the FFC socket 510, the connector assembly 500 for connecting two adjacent circuit boards 200 on the same side of the display may further include a direct-insertion connector 520.

The straight-through type connector 520 is arranged at the end of the circuit board 200, for two adjacent circuit boards 200 on the same side of the display screen, the straight-through type connector 520 is arranged at the corresponding end of the two circuit boards 200 to connect the two circuit boards 200, and simultaneously, one FFC socket 510 is respectively arranged on the two circuit boards 200, and the two FFC sockets 510 are connected through the FFC511, so that the current requirement in the circuit boards 200 can be ensured.

It should be noted that, since the in-line connectors 520 must be disposed at the end of the circuit board 200, in order not to increase the width of the circuit board 200, the present embodiment does not choose to dispose two in-line connectors 520 side by side to connect adjacent circuit boards 200; by providing the FFC receptacle 510, the position of the FFC receptacle 510 on the circuit board 200 is not limited, and thus the FFC receptacle 510 is mated with the in-line connector 520, and the width of the circuit board 200 can be reduced.

In addition, for two adjacent circuit boards 200 located on the same side of the display screen, two FFC sockets 510 may also be respectively disposed on the two circuit boards 200, and the FFC sockets 510 are connected in pairs by the FFC511, which is not limited in this embodiment.

As shown in fig. 8, in particular, the in-line connector 520 may include a plug 521 and a socket 522, wherein the plug 521 is disposed at an end of one of the two adjacent circuit boards 200, the socket 522 is disposed at an end of the other of the two adjacent circuit boards 200, and the plug 521 is inserted into the socket 522.

For two adjacent circuit boards 200 located on the same side of the display screen, the opposite ends of the two circuit boards 200 are provided with mating in-line connectors 520, wherein the end of one circuit board 200 is provided with a plug 521, and the end of the other circuit board 200 is provided with a receptacle 522 that mates with the plug 521. When two circuit boards 200 are connected, the plug 521 is inserted into the socket 522 to form the direct plug type connector 520, thereby completing the electrical connection of the two circuit boards 200.

In one embodiment, the plug 521 may have a plurality of pins 5211, the socket 522 may have a plurality of sockets 5221 corresponding to the pins 5211, and the pins 5211 extend into the sockets 5221. As shown in fig. 8 and 9, in two adjacent circuit boards 200 located on the same side of the display screen, the plug 521 at the end of one circuit board 200 has a plurality of pins 5211, the plurality of pins 5211 extend toward the receptacle 522 at the end of the other circuit board 200, and correspondingly, the receptacle 522 has a plurality of insertion holes 5221, the insertion holes 5221 and the pins 5211 are in one-to-one correspondence, and when the plug 521 is connected with the receptacle 522, the pins 5211 extend into the insertion holes 5221.

In a particular application, the plurality of pins 5211 on the plug 521 can be arranged in rows, and the plurality of pins 5211 can be spaced equidistantly in the same row. As shown in fig. 8 and 9, the general specification of the plug 521 is that 6 pins 5211 are arranged at intervals in a row, and correspondingly, 6 insertion holes 5221 are arranged in a row on the socket 522.

In this embodiment, the pins 5211 on the plug 521 are arranged in a single row, and the pins 5211 in the single row may be parallel to the side of the display screen. In order to further reduce the overall thickness of the circuit board 200, the pins 5211 of the plug 521 are arranged in a single row, i.e., the plug 521 has a row of pins 5211, and the row has 6 pins 5211, on the basis that the connector assembly 500 is arranged on the same side as the LED lamp 300 and the component 400.

Because the pins 5211 are arranged in a single row, rather than in a double row as shown in fig. 2 in the prior art, the thickness of the plug 521 can be correspondingly reduced; moreover, the thickness of the plug 521 can be further reduced by making the single row of pins 5211 parallel to the side of the display screen, and when the plug 521 is disposed on the same side as the LED lamp 300, the thickness of the plug 521 is smaller than the thickness of the LED, so that the circuit board 200 can have a smaller overall thickness.

It is understood that the two adjacent circuit boards 200 on the same side of the display screen are connected not only by the direct plug type connector 520 but also by the FFC511 connector, so that the plug 521 with the single row of pins 5211 and the corresponding receptacle 522 can ensure sufficient current flow between the circuit boards 200.

The touch frame provided by the embodiment comprises a frame and a circuit board arranged in the frame, wherein the circuit board is provided with an LED lamp, a component and a connector assembly, the surface of the circuit board is parallel to the side edge of the display screen, and the LED lamp is arranged on the surface of one side of the circuit board facing the display screen, so that light emitted by the LED lamp can irradiate the display screen to realize the operation of the touch screen; wherein, components and parts and connector subassembly homonymy set up, and the whole thickness of circuit board is decided by the thickness of circuit board self and the thickness sum of the great person of thickness among LED lamp, components and parts and the connector subassembly three like this, and the whole thickness of circuit board is less, and then can reduce the width of touch-sensitive frame, makes the whole narrower frame of touch-sensitive screen change, promotes the pleasing to the eye degree of touch-sensitive screen.

Example two

The embodiment provides a touch screen, which comprises a display screen and a touch frame as in the first embodiment, wherein the touch frame is arranged around the side edge of the display screen.

The touch screen provided by the embodiment comprises a display screen and a touch frame, wherein the touch frame is arranged on the side edge of the display screen in a surrounding mode. The touch frame comprises a frame 100 and a circuit board 200 arranged in the frame 100, wherein the circuit board 200 is provided with an LED lamp 300, a component 400 and a connector assembly 500; the LED lamp 300 may be an infrared lamp, and the LED lamp 300 is used to emit infrared rays, which irradiate from one side of the display screen to the other side of the screen, so that an infrared matrix is formed on the display screen, and the touch screen operation is further implemented.

Wherein, the side parallel arrangement of circuit board 200 and display screen, and LED lamp 300, components and parts 400 and connector assembly 500 all locate circuit board 200 towards a side surface of display screen, can effectively reduce circuit board 200's whole thickness like this, realize the narrow frame 100 of touch-sensitive screen, promote the pleasing to the eye degree of touch-sensitive screen.

In addition, the connector assembly 500 may include only the FFC511 connector, and the two circuit boards 200 located at both sides of the corner of the display screen may be each provided with the FFC511 connector, and the FFC511 connectors of the two circuit boards 200 are connected by the flexible FFC 511.

Alternatively, the connector assembly 500 may further include an in-line connector 520, and two adjacent circuit boards 200 on one side of the display screen may be connected by the in-line connector 520 matching with the FFC511 connector to reduce the width of the circuit board 200 while ensuring that the circuit board 200 has sufficient current.

Other structures, functions and working principles of the touch frame are described in detail in the first embodiment, and are not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a touch frame, is including enclosing the frame of establishing the side at the display screen, its characterized in that still includes circuit board, LED lamp, components and parts and the connector subassembly that sets up in the frame, the face of circuit board with the side of display screen is parallel, the LED lamp components and parts with the connector subassembly is all established the circuit board towards a side surface of display screen.

2. The touch frame of claim 1, wherein the connector assembly includes at least an FFC receptacle, the FFC receptacle on adjacent circuit boards connected by an FFC.

3. The touch frame of claim 2, wherein two FFC sockets are disposed on each side of the circuit board, and the circuit board is connected to an adjacent circuit board through the two FFC sockets.

4. The touch frame of claim 2, wherein the connector assembly further comprises an in-line connector disposed at an end of the circuit boards, wherein adjacent circuit boards on the same side of the display screen are connected to each other via the FFC socket and the in-line connector.

5. The touch frame according to claim 4, wherein the in-line connector includes a plug and a socket, and the plug is provided at an end of one of the two adjacent circuit boards, and the socket is provided at an end of the other of the two adjacent circuit boards, and the plug is inserted into the socket.

6. The touch frame of claim 5, wherein the plug is provided with a plurality of pins, the socket is provided with a plurality of jacks corresponding to the pins one to one, and the pins extend into the jacks.

7. The touch frame of claim 6, wherein the pins on the plug are arranged in a single row.

8. The touch frame of claim 7, wherein the pins of a single row are parallel to a side of the display screen.

9. The touch frame of any one of claims 1-8, wherein the LED lamp components and the connector assembly are mounted on the circuit board in a surface mount manner.

10. A touch screen, comprising a display screen and the touch frame of any one of claims 1 to 9, wherein the touch frame is arranged around the side of the display screen.

Images