Scanning control method, scanning control device and display device of infrared touch screen

Abstract

The present application provides a scanning control method, a scanning control device and a display device of an infrared touch screen, wherein the infrared touch screen comprises an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen comprises a main touch area and a secondary touch area, the secondary touch area is located on one side of the main touch area, the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board and the second infrared circuit board both comprise a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the infrared receiving tubes being used to correspondingly receive infrared light emitted by the infrared transmitting tubes, the scanning control method comprising: in the case of determining that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the secondary touch area and the main touch area to be scanned, thereby solving the problem in the prior art that it is difficult to scan a new type of touch splicing large screen.

Description

Technical Field

[0001] The present application relates to the technical field of infrared touch screens, and in particular to a scanning control method, a scanning control device and a display device of an infrared touch screen. Background Art

[0002] like Figure 1 As shown, the bilateral touch screen in the prior art has only one touchable area 116, and a receiving plate 119 is arranged on the upper side of the touchable area 116, and a transmitting plate 120 is arranged on the lower side. Many infrared pairs of tubes are distributed on the transmitting plate 120 and the receiving plate 119 according to a certain pattern, and the position of the touch point coordinates is obtained by the light shielding of the infrared pairs of tubes on the two opposite sides. For the original bilateral touch screen, its scanning method is to scan only the touchable area 116.

[0003] However, for new touch splicing large screens (such as Figure 2 The touch screen 100 includes three touch areas, namely, the main touch area 103, the first secondary touch area 117, and the second secondary touch area 118, and the first secondary touch area 117 and the second secondary touch area 118 are detachable. Due to the existence of multiple touch areas, the original scanning method can only scan the main touch area 103 and the second secondary touch area 118, but cannot scan the first secondary touch area 117, that is, the original scanning method is no longer suitable for scanning the new touch splicing large screen.

[0004] Therefore, there is an urgent need for a scanning method that can be applied to scanning a new type of touch splicing large screen. Summary of the invention

[0005] The main purpose of the present application is to provide a scanning control method, a scanning control device and a display device of an infrared touch screen, so as to solve the problem that it is difficult to scan a new type of touch splicing large screen in the prior art.

[0006] According to one aspect of the present application, a scanning control method of an infrared touch screen is provided, wherein the infrared touch screen comprises an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen comprises a main touch area and a secondary touch area, the secondary touch area is located on one side of the main touch area, the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board comprises a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board comprises a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, the infrared receiving tubes are used to correspondingly receive infrared light emitted by the infrared transmitting tubes, and the scanning control method comprises: in the case of determining that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the secondary touch area to be scanned; and controlling the first infrared circuit board and the second infrared circuit board of the main touch area to be scanned.

[0007] Optionally, the infrared touch screen further includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include a plurality of cascaded shift registers, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board in the main touch area, and the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board in the sub-touch area, and controlling the scanning of the first infrared circuit board and the second infrared circuit board in the sub-touch area includes: sending a first control signal to a first sub-shift register to scan the first infrared circuit board and the second infrared circuit board in the sub-touch area, the first sub-shift register being the first shift register in the sub-register unit along the corresponding scanning direction; controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area includes: sending a second control signal to a first main shift register to scan the first infrared circuit board and the second infrared circuit board in the main touch area, the first main shift register being the first shift register in the main register unit along the corresponding scanning direction.

[0008] Optionally, the first control signal is a first clock signal, and the second control signal is a second clock signal. Before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area, the method also includes: sending data control signals to the main register unit and the secondary register unit respectively, and the data control signal is used to control the switching state of the main register unit and the secondary register unit, the first clock signal is used to control whether the secondary register unit receives the data control signal, and the second clock signal is used to control whether the main register unit receives the data control signal.

[0009] Optionally, the first control signal is a first data control signal, and the second control signal is a second data control signal. Before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area, the method also includes: sending clock signals to each shift register of the main register unit and each shift register of the secondary register unit respectively, the first data control signal is used to control the switching state of each shift register of the secondary register unit, and the second data control signal is used to control the switching state of each shift register of the main register unit, and the clock signal is used to control whether each shift register of the secondary register unit receives the first data control signal, and is used to control whether each shift register of the main register unit receives the second data control signal.

[0010] Optionally, after sending the first control signal to the first sub-shift register and before sending the second control signal to the main register unit, the method further includes: determining the first control signal output by the last shift register receiving the sub-shift register unit, the last shift register being the shift register that last received the first control signal.

[0011] Optionally, controlling the scanning of the first infrared circuit board and the second infrared circuit board in the secondary touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board in the secondary touch area along a first predetermined direction, the first predetermined direction being a direction away from the main touch area; controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area along a second predetermined direction, the first predetermined direction being opposite to the second predetermined direction.

[0012] Optionally, controlling the scanning of the first infrared circuit board and the second infrared circuit board in the secondary touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board in the secondary touch area along a first predetermined direction; controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area along a second predetermined direction, the first predetermined direction and the second predetermined direction are the same.

[0013] According to another aspect of the present application, a scanning control device for an infrared touch screen is provided, the infrared touch screen comprising an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen comprises a main touch area and a secondary touch area, the secondary touch area being located on one side of the main touch area; the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board comprises a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board comprises a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, the infrared receiving tubes being used to correspondingly receive infrared light emitted by the infrared transmitting tubes, the scanning control device comprising: a first control unit, for controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area when it is determined that the infrared touch screen needs to be scanned; and a second control unit, for controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area.

[0014] According to another aspect of the present application, a display device is provided, including an infrared touch screen and a scanning control device, wherein the infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen includes a main touch area and a secondary touch area, and the secondary touch area is located on one side of the main touch area; the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board includes a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, the infrared receiving tubes are used to correspondingly receive infrared light emitted by the infrared transmitting tubes, and the scanning control device is used to execute any one of the scanning control methods described.

[0015] Optionally, the infrared touch screen also includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include at least one shift register, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and the scanning control device is electrically connected to the main register unit and the sub-register unit respectively.

[0016] Optionally, the scanning control device is a micro control unit, and is located on the infrared touch screen between the main touch area and the auxiliary touch area.

[0017] By applying the technical solution of the present application, in the scanning control method of the infrared touch screen, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned; or, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are controlled to be scanned; or, when it is not necessary to scan the auxiliary touch area, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned; or, when it is not necessary to scan the main touch area, the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned. In this solution, the scanning method for the main touch area and the auxiliary touch area can be determined according to actual needs, which ensures that the solution can scan the infrared touch screen more flexibly. Compared with the method of only scanning the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 The schematic diagram of the structure of the infrared touch screen in the prior art is shown;

[0020] Figure 2 The structural diagram of the new infrared splicing large screen is shown;

[0021] Figure 3 A flow chart of a scanning control method of an infrared touch screen according to an embodiment of the present application is shown;

[0022] Figure 4 A schematic diagram showing the connection between the primary touch area and the secondary touch area according to an embodiment of the present application is shown;

[0023] Figure 5 A schematic diagram showing the connection between a main touch area and two auxiliary touch areas according to another embodiment of the present application is shown;

[0024] Figure 6A schematic diagram of a scanning control device for an infrared touch screen according to an embodiment of the present application is shown;

[0025] Figure 7 A schematic diagram showing a scanning control method of an infrared touch screen according to a specific embodiment of the present application is shown;

[0026] Figure 8 A schematic diagram showing a scanning control method of an infrared touch screen according to another specific embodiment of the present application is shown;

[0027] Fig. 9 A schematic diagram showing a scanning control method of an infrared touch screen according to another specific embodiment of the present application is shown;

[0028] Fig.10 A schematic diagram of a scanning control method of an infrared touch screen according to another specific embodiment of the present application is shown.

[0029] The above drawings include the following reference numerals:

[0030] 100, infrared touch screen; 101, second infrared circuit board; 102, first infrared circuit board; 103, main touch area; 104, auxiliary touch area; 105, infrared touch screen; 106, second predetermined direction; 107, first predetermined direction; 108, MCU; 109, fourth shift register; 110, fifth shift register; 111, first shift register; 112, second shift register; 113, third shift register; 114, sixth shift register; 115, seventh shift register; 116, touchable area; 117, first auxiliary touch area; 118, second auxiliary touch area; 119, receiving board; 120, transmitting board. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be intermediate elements. Moreover, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element through a third element.

[0034] As mentioned in the background technology, it is difficult to scan the new touch splicing large screen in the prior art. In order to solve the above problem, a typical implementation of the present application provides a scanning control method, a scanning control device and a display device of an infrared touch screen.

[0035] According to an embodiment of the present application, a scanning control method of an infrared touch screen is provided.

[0036] Figure 3 FIG. 1 is a flow chart of a scanning control method of an infrared touch screen according to an embodiment of the present application. Figure 4 As shown, the infrared touch screen 100 includes an infrared touch screen 105, a first infrared circuit board 102 and a second infrared circuit board 101, wherein the infrared touch screen 105 includes a main touch area 103 and a secondary touch area 104, the secondary touch area 104 is located on one side of the main touch area 103, the first infrared circuit board 102 and the second infrared circuit board 101 are respectively arranged on two opposite end surfaces of the infrared touch screen 105, and the first infrared circuit board 102 includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes ( Figure 4 The second infrared circuit board 101 includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes ( Figure 4 The infrared receiving tube is used to correspondingly receive the infrared light emitted by the infrared emitting tube. Figure 3 As shown, the scanning control method includes the following steps:

[0037] Step S101, when it is determined that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the auxiliary touch area to be scanned;

[0038] Step S102, controlling to scan the first infrared circuit board and the second infrared circuit board in the main touch area.

[0039] In the above-mentioned scanning control method of the infrared touch screen, when it is determined that the infrared touch screen needs to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the auxiliary touch area are controlled to be scanned, and then the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are controlled to be scanned, or, when it is determined that the infrared touch screen needs to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are controlled to be scanned, and then the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the auxiliary touch area are controlled to be scanned, or, when it is determined that the auxiliary touch area does not need to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are controlled to be scanned, or, when the main touch area does not need to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned auxiliary touch area are scanned, and the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area are scanned. In this solution, the scanning method for the main touch area and the auxiliary touch area can be determined according to actual needs, which ensures that the solution can scan the infrared touch screen more flexibly. Compared with the method of only scanning the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0040] In actual application, the infrared touch screen may include a plurality of auxiliary touch areas, and the number of the auxiliary touch areas is not limited in the present application.

[0041] In a specific embodiment of the present application, Figure 5 As shown, the infrared touch screen includes a main touch area 103 and two subsidiary touch areas 104 , wherein one subsidiary touch area 104 is located on one side of the main touch area 103 , and the other subsidiary touch area 104 is located on the other side of the main touch area 103 .

[0042] Specifically, in the above-mentioned embodiments, the above-mentioned first infrared circuit board includes multiple infrared transmitting tubes and / or multiple infrared receiving tubes, and the above-mentioned second infrared circuit board includes multiple infrared transmitting tubes and / or multiple infrared receiving tubes. The above-mentioned infrared receiving tubes can receive the infrared light emitted by the above-mentioned infrared transmitting tubes one by one. Of course, multiple infrared receiving tubes can also receive the infrared light emitted by one infrared transmitting tube, and one infrared receiving tube can also receive the infrared light emitted by multiple infrared transmitting tubes.

[0043] In addition, in the above-mentioned embodiment, when it is determined that the above-mentioned infrared touch screen needs to be scanned, the first infrared circuit board and the infrared receiving frame column of the secondary touch area can be controlled to be scanned first, and then the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area can be controlled to be scanned. Of course, it is also possible to control the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area to be scanned first, and then control the first infrared circuit board and the infrared receiving frame column of the secondary touch area to be scanned. It is also possible to control only the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area to be scanned, and it is also possible to control only the first infrared circuit board and the above-mentioned second infrared circuit board of the secondary touch area to be scanned. That is, in this application, the order of scanning the above-mentioned main touch area and the secondary touch area is not limited, and different scanning orders can be set according to actual needs.

[0044] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0045] In one embodiment of the present application, the infrared touch screen further includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include a plurality of cascaded shift registers, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and controlling the scanning of the first infrared circuit board and the second infrared circuit board of the sub-touch area includes: sending a first control signal to a first sub-shift register to scan the first infrared circuit board and the second infrared circuit board of the sub-touch area, the first sub-shift register being the first shift register in the sub-register unit along the corresponding scanning direction; controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area includes: sending a second control signal to the first main shift register to scan the first infrared circuit board and the second infrared circuit board of the main touch area, the first main shift register being the first shift register in the main register unit along the corresponding scanning direction. In this embodiment, when scanning the auxiliary touch area, a first control signal is sent to the first auxiliary shift register to scan the first infrared circuit board and the second infrared circuit board of the auxiliary touch area. When scanning the main touch area, a second control signal is sent to the first main shift register to scan the first infrared circuit board and the second infrared circuit board of the main touch area. That is, this scheme realizes sending different control signals to scan different touch areas, which ensures that the main touch area and the auxiliary touch area can be scanned more flexibly. In addition, since the first control signal and the second control signal are independent of each other, when one of the control signals has a problem, it will not affect the other control signal, which ensures a better scanning effect.

[0046] In a specific embodiment of the present application, the shift register may be 74HC164. Of course, the shift register is not limited to 74HC164, and may be other types of shift registers.

[0047] In order to control the main register unit and the secondary register unit more accurately and efficiently to scan the first infrared circuit board and the second infrared circuit board of the main touch area and the secondary touch area, in another embodiment of the present application, the first control signal is a first clock signal, and the second control signal is a second clock signal. Before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area, the method further includes: sending data control signals to the main register unit and the secondary register unit respectively, the data control signal is used to control the switching state of the main register unit and the secondary register unit, the first clock signal is used to control whether the secondary register unit receives the data control signal, and the second clock signal is used to control whether the main register unit receives the data control signal.

[0048] In another embodiment of the present application, the first control signal is a first data control signal, and the second control signal is a second data control signal. Before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area, the method further includes: sending clock signals to the shift registers of the main register unit and the shift registers of the secondary register unit respectively, the first data control signal is used to control the switching state of the shift registers of the secondary register unit, the second data control signal is used to control the switching state of the shift registers of the main register unit, and the clock signal is used to control whether the shift registers of the secondary register unit receive the first data control signal, and is used to control whether the shift registers of the main register unit receive the second data control signal. In this embodiment, the clock signal is sent to the above-mentioned shift registers of the main register unit and the above-mentioned shift registers of the above-mentioned sub-register unit respectively, which ensures that the above-mentioned shift registers of the main register unit and the above-mentioned shift registers of the above-mentioned sub-register unit can be driven more accurately, further ensures that the scanning result is more accurate, and further ensures a better scanning effect.

[0049] In order to more efficiently determine whether to scan the first infrared circuit board and the second infrared circuit board of the main touch area, in another embodiment of the present application, after sending the above-mentioned first control signal to the first sub-shift register and before sending the above-mentioned second control signal to the above-mentioned main register unit, the above-mentioned method also includes: determining the above-mentioned first control signal output by the last above-mentioned shift register of the above-mentioned sub-register unit, and the last above-mentioned shift register is the above-mentioned shift register that last received the above-mentioned first control signal.

[0050] In order to further ensure more flexible scanning of the main touch area and the secondary touch area, in an embodiment of the present application, controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area along a first predetermined direction, wherein the first predetermined direction is a direction away from the main touch area; controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area along a second predetermined direction, wherein the first predetermined direction is opposite to the second predetermined direction.

[0051] In another embodiment of the present application, controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area along a first predetermined direction, and controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area along a second predetermined direction, and the first predetermined direction and the second predetermined direction are the same. In this embodiment, the secondary touch area and the main touch area are scanned in the same predetermined direction, which ensures that the secondary touch area and the main touch area can be scanned relatively simply and efficiently.

[0052] The embodiment of the present application also provides a scanning control device for an infrared touch screen. It should be noted that the scanning control device for an infrared touch screen in the embodiment of the present application can be used to execute the scanning control method for an infrared touch screen provided in the embodiment of the present application. The scanning control device for an infrared touch screen provided in the embodiment of the present application is introduced below.

[0053] Figure 6 Schematic diagram of a scanning control device for an infrared touch screen according to an embodiment of the present application. Figure 4 As shown, the infrared touch screen 100 includes an infrared touch screen 105, a first infrared circuit board 102 and a second infrared circuit board 101, wherein the infrared touch screen 105 includes a main touch area 103 and a secondary touch area 104, the secondary touch area 104 is located on one side of the main touch area 103, the first infrared circuit board 102 and the second infrared circuit board 101 are respectively arranged on two opposite end surfaces of the infrared touch screen 105, and the first infrared circuit board 102 includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes ( Figure 4 The second infrared circuit board 101 includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes ( Figure 4The infrared receiving tube is used to correspondingly receive the infrared light emitted by the infrared emitting tube. Figure 6 As shown, the scanning control device includes:

[0054] The first control unit 10 is used for controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area when it is determined that the infrared touch screen needs to be scanned;

[0055] The second control unit 20 is used for controlling the scanning of the first infrared circuit board and the second infrared circuit board in the main touch area.

[0056] In the above-mentioned scanning control device of the infrared touch screen, the first control unit is used to control the scanning of the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned secondary touch area when it is determined that the infrared touch screen needs to be scanned, and the second control unit is used to control the scanning of the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area. In this solution, the scanning method of the main touch area and the secondary touch area can be determined according to actual needs, which ensures that this solution can scan the infrared touch screen more flexibly. Compared with the method of scanning only the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the secondary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0057] In actual application, the infrared touch screen may include a plurality of auxiliary touch areas, and the number of the auxiliary touch areas is not limited in the present application.

[0058] In a specific embodiment of the present application, Figure 5 As shown, the infrared touch screen includes a main touch area 103 and two subsidiary touch areas 104 , wherein one subsidiary touch area 104 is located on one side of the main touch area 103 , and the other subsidiary touch area 104 is located on the other side of the main touch area 103 .

[0059] Specifically, in the above-mentioned embodiments, the above-mentioned first infrared circuit board includes multiple infrared transmitting tubes and / or multiple infrared receiving tubes, and the above-mentioned second infrared circuit board includes multiple infrared transmitting tubes and / or multiple infrared receiving tubes. The above-mentioned infrared receiving tubes can receive the infrared light emitted by the above-mentioned infrared transmitting tubes one by one. Of course, multiple infrared receiving tubes can also receive the infrared light emitted by one infrared transmitting tube, and one infrared receiving tube can also receive the infrared light emitted by multiple infrared transmitting tubes.

[0060] In addition, in the above-mentioned embodiment, when it is determined that the above-mentioned infrared touch screen needs to be scanned, the first infrared circuit board and the infrared receiving frame column of the secondary touch area can be controlled to be scanned first, and then the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area can be controlled to be scanned. Of course, it is also possible to control the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area to be scanned first, and then control the first infrared circuit board and the infrared receiving frame column of the secondary touch area to be scanned. It is also possible to control only the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the above-mentioned main touch area to be scanned, and it is also possible to control only the first infrared circuit board and the above-mentioned second infrared circuit board of the secondary touch area to be scanned. That is, in this application, the order of scanning the above-mentioned main touch area and the secondary touch area is not limited, and different scanning orders can be set according to actual needs.

[0061] In one embodiment of the present application, the infrared touch screen further includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include a plurality of cascaded shift registers, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board in the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board in the sub-touch area, the first control unit includes a first sending module, which is used to send a first control signal to the first sub-shift register to scan the first infrared circuit board and the second infrared circuit board in the sub-touch area, the first sub-shift register is the first shift register in the sub-register unit along the corresponding scanning direction; the second control unit includes a second sending module, which is used to send a second control signal to the first main shift register to scan the first infrared circuit board and the second infrared circuit board in the main touch area, the first main shift register is the first shift register in the main register unit along the corresponding scanning direction. In this embodiment, when scanning the auxiliary touch area, a first control signal is sent to the first auxiliary shift register to scan the first infrared circuit board and the second infrared circuit board of the auxiliary touch area. When scanning the main touch area, a second control signal is sent to the first main shift register to scan the first infrared circuit board and the second infrared circuit board of the main touch area. That is, this scheme realizes sending different control signals to scan different touch areas, which ensures that the main touch area and the auxiliary touch area can be scanned more flexibly. In addition, since the first control signal and the second control signal are independent of each other, when one of the control signals has a problem, it will not affect the other control signal, which ensures a better scanning effect.

[0062] In a specific embodiment of the present application, the shift register may be 74HC164. Of course, the shift register is not limited to 74HC164, and may be other types of shift registers.

[0063] In order to control the main register unit and the sub-register unit more accurately and efficiently to scan the first infrared circuit board and the second infrared circuit board of the main touch area and the sub-touch area, in another embodiment of the present application, the scanning control device also includes a first sending unit, the first control signal is a first clock signal, and the second control signal is a second clock signal, which is used to send data control signals to the main register unit and the sub-register unit respectively before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the sub-touch area, the data control signal is used to control the switching state of the main register unit and the sub-register unit, the first clock signal is used to control whether the sub-register unit receives the data control signal, and the second clock signal is used to control whether the main register unit receives the data control signal.

[0064] In another embodiment of the present application, the scanning control device further includes a second sending unit, the first control signal is a first data control signal, and the second control signal is a second data control signal, which is used to send clock signals to the shift registers of the main register unit and the shift registers of the secondary register unit before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area, respectively, the first data control signal is used to control the switching state of the shift registers of the secondary register unit, the second data control signal is used to control the switching state of the shift registers of the main register unit, and the clock signal is used to control whether the shift registers of the secondary register unit receive the first data control signal, and is used to control whether the shift registers of the main register unit receive the second data control signal. In this embodiment, the clock signal is sent to the above-mentioned shift registers of the main register unit and the above-mentioned shift registers of the above-mentioned sub-register unit respectively, which ensures that the above-mentioned shift registers of the main register unit and the above-mentioned shift registers of the above-mentioned sub-register unit can be driven more accurately, further ensures that the scanning result is more accurate, and further ensures a better scanning effect.

[0065] In order to more efficiently determine whether to scan the first infrared circuit board and the second infrared circuit board of the main touch area, in another embodiment of the present application, the above-mentioned scanning control device also includes a receiving unit, which is used to determine the first control signal output by the last shift register of the above-mentioned sub-register unit after sending the above-mentioned first control signal to the first sub-shift register and before sending the above-mentioned second control signal to the above-mentioned main register unit, and the last shift register is the above-mentioned shift register that last received the above-mentioned first control signal.

[0066] In order to further ensure more flexible scanning of the main touch area and the secondary touch area, in one embodiment of the present application, the above-mentioned first control unit also includes a first control module, which is used to control the scanning of the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board in the above-mentioned secondary touch area along a first predetermined direction, and the above-mentioned first predetermined direction is a direction away from the above-mentioned main touch area; the above-mentioned second control unit also includes a second control module, which is used to control the scanning of the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board in the above-mentioned main touch area along a second predetermined direction, and the above-mentioned first predetermined direction is opposite to the above-mentioned second predetermined direction.

[0067] In another embodiment of the present application, the first control unit further includes a third control module for controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area along a first predetermined direction, and the second control unit further includes a fourth control module for controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area along a second predetermined direction, and the first predetermined direction is the same as the second predetermined direction. In this embodiment, the auxiliary touch area and the main touch area are scanned in the same predetermined direction, which ensures that the auxiliary touch area and the main touch area can be scanned relatively simply and efficiently.

[0068] In a typical embodiment of the present application, a display device is also provided, including an infrared touch screen and a scanning control device, wherein the infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen includes a main touch area and a secondary touch area, and the secondary touch area is located on one side of the main touch area; the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board includes a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, the infrared receiving tubes are used to correspondingly receive infrared light emitted by the infrared transmitting tubes, and the scanning control device is used to execute any one of the above-mentioned scanning control methods.

[0069] The above-mentioned display device includes an infrared touch screen and a scanning control device. The above-mentioned infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board. The above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen. The infrared touch screen includes a main touch area and a sub-touch area. The above-mentioned sub-touch area is located on one side of the above-mentioned main touch area. The above-mentioned scanning control device is used to execute any of the above-mentioned scanning control methods. In the above-mentioned scanning control method, when it is determined that the sub-touch area needs to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the sub-touch area are controlled to be scanned, and then the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are controlled to be scanned, or, when it is determined that the sub-touch area does not need to be scanned, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are controlled to be scanned, or, the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the sub-touch area are scanned, and the above-mentioned first infrared circuit board and the above-mentioned second infrared circuit board of the main touch area are scanned. In this solution, the scanning method for the main touch area and the auxiliary touch area can be determined according to actual needs, which ensures that the solution can scan the infrared touch screen more flexibly. Compared with the method of only scanning the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0070] In one embodiment of the present application, the infrared touch screen further includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include at least one shift register, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and the scanning control device is electrically connected to the main register unit and the sub-register unit respectively. In this embodiment, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and the scanning control device is electrically connected to the main register unit and the sub-register unit respectively, which ensures that the hardware circuit is relatively simple and the cost is low.

[0071] In a specific embodiment of the present application, the main register unit includes multiple shift registers, one group of shift registers is electrically connected to the first infrared circuit board of the main touch area, and one group of shift registers is electrically connected to the second infrared circuit board of the main touch area. The secondary register unit includes multiple shift registers, one group of shift registers is electrically connected to the first infrared circuit board of the secondary touch area, and another group of shift registers is electrically connected to the second infrared circuit board of the secondary touch area.

[0072] In order to further ensure that the hardware circuit is relatively simple, in another embodiment of the present application, the scanning control device is a micro control unit, and is located on the infrared touch screen between the main touch area and the auxiliary touch area.

[0073] In actual application, the position of the microcontroller unit can be adjusted according to actual conditions or needs. The microcontroller unit is not limited to being set on the infrared touch screen between the main touch area and the auxiliary touch area. It can also be set on the infrared touch screen close to the auxiliary touch area and away from the main touch area.

[0074] In a specific embodiment of the present application, the first infrared circuit board and the second infrared circuit board are both composed of a plurality of transmitting boards and receiving boards. In actual application, the microcontroller unit can be arranged on the transmitting board of the main touch area. When the microcontroller unit is located on the transmitting board of the main touch area on the side close to the secondary touch area, the hardware circuit can be kept simple and data lines and clock lines can be saved.

[0075] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the following will be described in conjunction with specific embodiments:

[0076] Example 1

[0077] like Figure 7As shown, the infrared touch screen includes a main touch area 103 and two auxiliary touch areas, namely a first auxiliary touch area 117 and a second auxiliary touch area 118, wherein the main touch area 103 is located between the first auxiliary touch area 117 and the second auxiliary touch area 118, the main register unit is used to drive the first infrared circuit board and the second infrared circuit board of the main touch area 103, the first auxiliary register unit is used to drive the first infrared circuit board and the second infrared circuit board of the first auxiliary touch area 117, and the second auxiliary register unit is used to drive the first infrared circuit board and the second infrared circuit board of the second auxiliary touch area 118, the main register unit includes a first shift register 111, a second shift register 112 and a third shift register 113, the first auxiliary register unit includes a fourth shift register 109 and a fifth shift register 110, and the second auxiliary register unit includes a The sixth shift register 114 and the seventh shift register 115 are included, and the MCU108 (micro control unit) is electrically connected to the first shift register 111 and the fourth shift register 109 through data lines, respectively. The MCU108 is electrically connected to the fourth shift register 109 and the fifth shift register 110 through the first clock line, respectively. The MCU108 is electrically connected to the first shift register 111, the second shift register 112, the third shift register 113, the sixth shift register 114 and the seventh shift register 115 through the second clock line, and each shift register is electrically connected through the data line. The micro control unit is used to output a data control signal. The MCU108 switches different clock lines, that is, outputs the first clock signal and the second clock signal, so as to control each shift register.

[0078] When the first secondary touch area 117 exists and needs to be scanned, the MCU 108 first outputs a first clock signal to control the fourth shift register 109 and the fifth shift register 110 of the first secondary touch area 117 to complete the scan in the first predetermined direction 107; the MCU 108 then outputs a second clock signal to control the shift registers of the main touch area 103 and the second secondary touch area 118 to scan in the second predetermined direction 106, wherein the first predetermined direction 107 and the second predetermined direction 106 are two opposite directions.

[0079] When the first subsidiary touch area 117 does not exist or does not need to be scanned, the MCU 108 only outputs the second clock signal to control the shift registers of the main touch area 103 and the second subsidiary touch area 118 to scan in the second predetermined direction 106 .

[0080] Example 2

[0081] like Figure 8As shown, MCU108 is electrically connected to the first shift register 111 through the first data line, the second shift register 112, the third shift register 113, the sixth shift register 114 and the seventh shift register 115 are electrically connected through the first data line, MCU108 is electrically connected to the fourth shift register 109 through the second data line, the fourth shift register 109 and the fifth shift register 110 are electrically connected through the second data line, MCU108 is electrically connected to each shift register through the same clock line, MCU108 outputs two data control signals, namely the first data control signal and the second data control signal, and MCU108 controls each shift register to scan by switching different data lines.

[0082] When the first secondary touch area 117 exists and needs to be scanned, the MCU 108 outputs a first data control signal to drive the first secondary touch area 117 to scan in the first predetermined direction 107 according to the clock signal to collect touch data.

[0083] When the first auxiliary touch area 117 does not exist or does not need to be scanned, the MCU 108 outputs a second data control signal to drive the main touch area 103 and the second auxiliary touch area 118 to scan in the second predetermined direction 106 according to the clock signal, wherein the first predetermined direction 107 and the second predetermined direction 106 are two opposite directions.

[0084] Example 3

[0085] like Fig. 9 As shown, MCU108 is electrically connected to the fifth shift register 110 through the first data line, MCU108 is electrically connected to the fourth shift register 109 through the second data line, the fourth shift register 109 and the fifth shift register 110 are electrically connected through the first data line, MCU108 is electrically connected to the first shift register 111 through the third data line, the second shift register 112, the third shift register 113, the sixth shift register 114 and the seventh shift register 115 are electrically connected through the third data line, MCU108 is electrically connected to each shift register through the same clock line, MCU108 outputs a first data control signal and a second data control signal, and switches different data lines through signal detection to control each shift register.

[0086] When the first secondary touch area 117 exists and needs to be scanned, MCU108 first outputs a first data control signal. When MCU108 detects the first data control signal output by the first secondary touch area 117, MCU108 then outputs a second data control signal to the first shift register 111, driving each shift register to scan in the second predetermined direction 106 through a clock signal.

[0087] When the first secondary touch area 117 does not exist or does not need to be scanned, the MCU 108 only outputs the second data control signal to the first shift register 111, driving each shift register to scan in the second predetermined direction 106 through the clock signal, wherein the first predetermined direction 107 and the second predetermined direction 106 are two identical directions.

[0088] Example 4

[0089] like Fig.10 As shown, MCU108 (micro control unit) is electrically connected to the first shift register 111 and the fourth shift register 109 through data lines, MCU108 is electrically connected to the fourth shift register 109 and the fifth shift register 110 through the first clock line, MCU108 is electrically connected to the first shift register 111, the second shift register 112, the third shift register 113, the sixth shift register 114 and the seventh shift register 115 through the second clock line, and each shift register is electrically connected through the data line. The micro control unit is used to output a data control signal. MCU108 switches different clock lines, that is, outputs the first clock signal and the second clock signal, so as to control each shift register.

[0090] When the first secondary touch area 117 exists and needs to be scanned, MCU108 first outputs a first clock control signal to control the fourth shift register 109 and the fifth shift register 110 of the first secondary touch area 117 to complete the scan; MCU108 then outputs a second clock control signal to control the shift registers of the main touch area 103 and the second secondary touch area 118 to scan.

[0091] When the first secondary touch area 117 does not exist or does not need to be scanned, the MCU 108 outputs a second clock control signal to control the shift registers of the main touch area 103 and the second secondary touch area 118 to scan, wherein the first predetermined direction 107 and the second predetermined direction 106 are two identical directions.

[0092] The scanning control device of the infrared touch screen comprises a processor and a memory. The first control unit and the second control unit are stored in the memory as program units. The processor executes the program units stored in the memory to realize corresponding functions.

[0093] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the problem of difficulty in scanning the new touch splicing large screen in the prior art can be solved by adjusting the kernel parameters.

[0094] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0095] An embodiment of the present invention provides a storage medium on which a program is stored. When the program is executed by a processor, the scanning control method of the infrared touch screen is implemented.

[0096] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the scanning control method of the infrared touch screen is executed when the program is run.

[0097] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0098] Step S101, when it is determined that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the auxiliary touch area to be scanned;

[0099] Step S102, controlling to scan the first infrared circuit board and the second infrared circuit board in the main touch area.

[0100] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0101] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0102] Step S101, when it is determined that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the auxiliary touch area to be scanned;

[0103] Step S102, controlling to scan the first infrared circuit board and the second infrared circuit board in the main touch area.

[0104] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the above-mentioned units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0106] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0107] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0108] If the above-mentioned integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0109] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0110] 1) In the scanning control method of the infrared touch screen of the present application, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, or, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are controlled to be scanned, or, when it is not necessary to scan the auxiliary touch area, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, or, when it is not necessary to scan the main touch area, the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned. In this solution, the scanning method for the main touch area and the auxiliary touch area can be determined according to actual needs, which ensures that the solution can scan the infrared touch screen more flexibly. Compared with the method of only scanning the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0111] 2) In the scanning control device of the infrared touch screen of the present application, the first control unit is used to control the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area when it is determined that the infrared touch screen needs to be scanned, and the second control unit is used to control the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area. In this solution, the scanning method of the main touch area and the auxiliary touch area can be determined according to actual needs, which ensures that the infrared touch screen can be scanned more flexibly in this solution. Compared with the method of scanning only the main touch area in one direction in the prior art, in this solution, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0112] 3) The display device of the present application includes an infrared touch screen and a scanning control device, wherein the infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, and the infrared touch screen includes a main touch area and a secondary touch area, wherein the secondary touch area is located on one side of the main touch area, and the scanning control device is used to execute any of the above-mentioned scanning control methods. In the above-mentioned scanning control method, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the secondary touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned. The second infrared circuit board is scanned, or, when it is determined that the infrared touch screen needs to be scanned, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, and then the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are controlled to be scanned, or, when it is determined that the auxiliary touch area does not need to be scanned, the first infrared circuit board and the second infrared circuit board of the main touch area are controlled to be scanned, or, when it is not necessary to scan the main touch area, the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, and the first infrared circuit board and the second infrared circuit board of the main touch area are scanned. In this scheme, the scanning method of the main touch area and the auxiliary touch area can be determined according to actual needs, so that the scheme can scan the infrared touch screen more flexibly. Compared with the method of scanning only the main touch area in one direction in the prior art, in this scheme, not only the first infrared circuit board and the second infrared circuit board of the main touch area are scanned, but also the first infrared circuit board and the second infrared circuit board of the auxiliary touch area are scanned, thereby solving the problem of difficulty in scanning the new touch splicing large screen in the prior art.

[0113] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scanning control method for an infrared touch screen, characterized in that: The infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen includes a main touch area and a secondary touch area, the secondary touch area is located on one side of the main touch area, the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board includes a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, the infrared receiving tubes are used to correspondingly receive infrared light emitted by the infrared transmitting tubes, and the scanning control method includes: When it is determined that the infrared touch screen needs to be scanned, controlling the first infrared circuit board and the second infrared circuit board of the auxiliary touch area to be scanned; Controlling scanning of the first infrared circuit board and the second infrared circuit board of the main touch area; The infrared touch screen also includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include a plurality of cascaded shift registers, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and controlling the scanning of the first infrared circuit board and the second infrared circuit board of the sub-touch area includes: sending a first control signal to a first sub-shift register to scan the first infrared circuit board and the second infrared circuit board of the sub-touch area, the first sub-shift register is the first shift register in the sub-register unit along the corresponding scanning direction; controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area includes: sending a second control signal to a first main shift register to scan the first infrared circuit board and the second infrared circuit board of the main touch area, the first main shift register is the first shift register in the main register unit along the corresponding scanning direction; The main register unit is used to drive the first infrared circuit board and the second infrared circuit board of the main touch area; The auxiliary touch area includes a first auxiliary touch area and a second auxiliary touch area, the first auxiliary touch area is located on one side of the main touch area, and the second auxiliary touch area is located on the other side of the main touch area; The sub-register unit includes a first sub-register unit and a second sub-register unit, the first sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the first sub-touch area, and the second sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the second sub-touch area.

2. The method according to claim 1, characterized in that The first control signal is a first clock signal, the second control signal is a second clock signal, and before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area, the method further includes: A data control signal is sent to the main register unit and the secondary register unit respectively, the data control signal is used to control the switch state of the main register unit and the secondary register unit, the first clock signal is used to control whether the secondary register unit receives the data control signal, and the second clock signal is used to control whether the main register unit receives the data control signal.

3. The method according to claim 1, characterized in that The first control signal is a first data control signal, the second control signal is a second data control signal, and before controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area, the method further includes: Clock signals are sent to each shift register of the main register unit and each shift register of the sub-register unit respectively, the first data control signal is used to control the switching state of each shift register of the sub-register unit, the second data control signal is used to control the switching state of each shift register of the main register unit, and the clock signal is used to control whether each shift register of the sub-register unit receives the first data control signal, and is used to control whether each shift register of the main register unit receives the second data control signal.

4. The method according to claim 3, characterized in that After sending the first control signal to the first sub-shift register and before sending the second control signal to the main register unit, the method further includes: It is determined that the first control signal output by the last shift register of the sub-register unit is received, and the last shift register is the shift register that receives the first control signal last.

5. The method according to any one of claims 1 to 4, characterized in that Controlling scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area includes: controlling scanning of the first infrared circuit board and the second infrared circuit board of the secondary touch area along a first predetermined direction, wherein the first predetermined direction is a direction away from the main touch area; Controlling scanning of the first infrared circuit board and the second infrared circuit board in the main touch area includes: controlling scanning of the first infrared circuit board and the second infrared circuit board in the main touch area along a second predetermined direction, wherein the first predetermined direction is opposite to the second predetermined direction.

6. The method according to any one of claims 1 to 4, characterized in that Controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area includes: controlling the scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area along a first predetermined direction, Controlling scanning of the first infrared circuit board and the second infrared circuit board in the main touch area includes: controlling scanning of the first infrared circuit board and the second infrared circuit board in the main touch area along a second predetermined direction, wherein the first predetermined direction is the same as the second predetermined direction.

7. A scanning control device for an infrared touch screen, characterized in that: The infrared touch screen comprises an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen comprises a main touch area and a secondary touch area, and the secondary touch area is located on one side of the main touch area; the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board comprises a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board comprises a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, and the infrared receiving tubes are used to correspondingly receive the infrared light emitted by the infrared transmitting tubes, and the scanning control device comprises: a first control unit, configured to control scanning of the first infrared circuit board and the second infrared circuit board of the auxiliary touch area when determining that the infrared touch screen needs to be scanned; a second control unit, configured to control scanning of the first infrared circuit board and the second infrared circuit board of the main touch area; The infrared touch screen also includes a register unit, the register unit includes a main register unit and a sub-register unit, the main register unit and the sub-register unit respectively include a plurality of cascaded shift registers, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, and controlling the scanning of the first infrared circuit board and the second infrared circuit board of the sub-touch area includes: sending a first control signal to a first sub-shift register to scan the first infrared circuit board and the second infrared circuit board of the sub-touch area, the first sub-shift register is the first shift register in the sub-register unit along the corresponding scanning direction; controlling the scanning of the first infrared circuit board and the second infrared circuit board of the main touch area includes: sending a second control signal to a first main shift register to scan the first infrared circuit board and the second infrared circuit board of the main touch area, the first main shift register is the first shift register in the main register unit along the corresponding scanning direction; The main register unit is used to drive the first infrared circuit board and the second infrared circuit board of the main touch area; The auxiliary touch area includes a first auxiliary touch area and a second auxiliary touch area, the first auxiliary touch area is located on one side of the main touch area, and the second auxiliary touch area is located on the other side of the main touch area; The sub-register unit includes a first sub-register unit and a second sub-register unit, the first sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the first sub-touch area, and the second sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the second sub-touch area.

8. A display device, comprising an infrared touch screen and a scanning control device, characterized in that: The infrared touch screen includes an infrared touch screen, a first infrared circuit board and a second infrared circuit board, wherein the infrared touch screen includes a main touch area and a secondary touch area, and the secondary touch area is located on one side of the main touch area; the first infrared circuit board and the second infrared circuit board are respectively arranged on two opposite end surfaces of the infrared touch screen, the first infrared circuit board includes a plurality of infrared transmitting tubes and / or a plurality of infrared receiving tubes, the second infrared circuit board includes a plurality of the infrared transmitting tubes and / or a plurality of the infrared receiving tubes, and the infrared receiving tubes are used to correspondingly receive the infrared light emitted by the infrared transmitting tubes, the infrared touch screen also includes a register unit, the register unit includes a main register unit and a secondary register unit, the main register unit and the secondary register unit respectively include at least one shift register, the main register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the main touch area, the The sub-register unit is electrically connected to the first infrared circuit board and the second infrared circuit board of the sub-touch area, the main register unit is used to drive the first infrared circuit board and the second infrared circuit board of the main touch area, the sub-touch area includes a first sub-touch area and a second sub-touch area, the first sub-touch area is located on one side of the main touch area, and the second sub-touch area is located on the other side of the main touch area, the sub-register unit includes a first sub-register unit and a second sub-register unit, the first sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the first sub-touch area, and the second sub-register unit is used to drive the first infrared circuit board and the second infrared circuit board of the second sub-touch area, the scanning control device is electrically connected to the main register unit and the sub-register unit respectively, and the scanning control device is used to execute the scanning control method described in any one of claims 1 to 6.

9. The display device according to claim 8, characterized in that: The scanning control device is a micro control unit and is located on the infrared touch screen between the main touch area and the auxiliary touch area.

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