Touch display device, control method and computer storage medium

Abstract

The present application discloses a touch display device and a control method for the touch display device, which belong to the field of display technology. The touch display device includes: a display screen and at least two optical tube groups, and the multiple transmitters and multiple receivers in the at least two optical tube groups can be respectively located on the outside of the two arc-shaped sides of the display screen. The extension directions of the light emitted by the radiating units in the at least two optical tube groups intersect to form a grid-shaped light scanning plane on the surface of the display screen, and the position of the user's touch point on the display screen can be obtained through the light scanning plane. In this way, the distance between the light scanning plane and the surface of the display screen can be made closer, which can improve the accuracy of touch recognition of the touch display device. The problem of low accuracy of touch recognition of the touch display device in the related art is solved, and the effect of improving the accuracy of touch recognition of the touch display device is achieved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch display device, a control method, and a computer storage medium. Background Art

[0002] Currently, touch display devices can be widely used in display devices with display functions, such as advertising screens, televisions, or computers, so that the above display devices can have a human-computer interaction function.

[0003] A touch display device includes a display screen and an optical pair of tubes. The display screen is curved, and the optical pair of tubes includes emitters and receivers positioned around the edges of the display screen. The emitters and receivers correspond to each other, forming horizontal and vertical intersecting light scanning planes on the surface of the display screen. When a user touches the display screen, the user's finger or other object blocks the light passing through the touch point, thereby locating the touch point.

[0004] However, the touch recognition accuracy of the above touch display device is relatively low. Summary of the Invention

[0005] The embodiments of the present application provide a touch display device, a control method, and a computer storage medium. The technical solution is as follows:

[0006] According to one aspect of the present application, a touch display device is provided, comprising:

[0007] A display screen and at least two optical pair tube groups, wherein the display screen includes a curved screen;

[0008] The display screen has a first side and a second side opposite to each other, and the shapes of the first side and the second side are arc-shaped;

[0009] The optical pair tube assembly includes a plurality of beamforming units, each including a transmitter and a receiver. The transmitter is located outside the first side, the receiver is located outside the second side, and the light outlet of the transmitter faces the light inlet of the receiver.

[0010] The at least two optical tube groups include a first optical tube group and a second optical tube group. The extending direction of the light emitted by the radiation unit in the first optical tube group intersects with the extending direction of the light emitted by the radiation unit in the second optical tube group.

[0011] Optionally, in the at least two optical tube groups, an extension direction of the light emitted by the radiation unit in at least one of the optical tube groups has a preset angle with a first direction, where the first direction is a direction perpendicular to the first edge, and the preset angle is greater than 0 degrees and less than 90 degrees.

[0012] Optionally, the first optical pair tube assembly includes a first oblique radiation unit, and an extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction in the clockwise direction;

[0013] The second optical pair tube assembly includes a second oblique radiation unit, and the extension direction of the light emitted by the second oblique radiation unit has the preset angle with the first direction in the counterclockwise direction.

[0014] Optionally, the first optical pair tube assembly includes a first oblique radiation unit, and an extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction;

[0015] The second optical pair tube assembly includes a vertical radiation unit, and the extension direction of the light emitted by the vertical radiation unit is parallel to the first direction.

[0016] Optionally, the at least two optical tube groups further include a third optical tube group, and an extension direction of the light emitted by the radiation unit in the third optical tube group intersects with an extension direction of the light emitted by the radiation unit in the first optical tube group, and intersects with an extension direction of the light emitted by the radiation unit in the second optical tube group.

[0017] Optionally, the first optical pair tube assembly includes a first oblique radiation unit, and an extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction in the clockwise direction;

[0018] The second optical pair tube assembly includes a vertical radiation unit, and the extension direction of the light emitted by the vertical radiation unit is parallel to the first direction;

[0019] The at least two optical tube groups further include a third optical tube group, the third optical tube group includes a third oblique radiation unit, and the extension direction of the light emitted by the third oblique radiation unit has the preset angle with the first direction in the counterclockwise direction.

[0020] Optionally, the first optical tube group and the second optical tube group are located in the same layer, and in the extension direction of the first side of the display screen, the radiation units in the first optical tube group and the radiation units in the second optical tube group are arranged alternately;

[0021] Alternatively, the first optical tube pair group and the second optical tube pair group are stacked and arranged in a direction away from the display screen.

[0022] Optionally, the first optical tube group, the second optical tube group, and the third optical tube group are located in the same layer, and in the extension direction of the first side of the display screen, the radiation units in the first optical tube group and the radiation units in the second optical tube group are alternately arranged;

[0023] Alternatively, the first optical tube set, the second optical tube set, and the third optical tube set are stacked in a direction away from the display screen.

[0024] Optionally, the display screen further has a third side and a fourth side opposite to each other, two ends of the third side are connected to the first side and the second side respectively, and two sides of the fourth side are connected to the first side and the second side respectively;

[0025] The at least two optical pair tube groups further include a supplementary transmitter and a supplementary receiver located outside the third side and the fourth side, the light outlet of the supplementary transmitter facing the light inlet of the receiver located outside the second side, and the light inlet of the supplementary receiver facing the light outlet of the transmitter located outside the first side.

[0026] Optionally, the angle range of the preset angle satisfies the following formula:

[0027]

[0028] Wherein, θ is the preset angle, L is the distance between the first side and the second side, R is the radius of the first side, and H is the preset distance between the light emitted by the reflecting unit of the at least one optical pair tube assembly and the display surface of the display screen in a direction perpendicular to the display surface of the display screen.

[0029] According to another aspect of the present application, a control method for a touch display device is provided. The control method for a touch display device is used for the above-mentioned touch display device, and the control method for a touch display device includes:

[0030] performing a scanning action of at least two optical pair tube assemblies;

[0031] Obtaining scanning results of the at least two optical tube groups;

[0032] Touch information is determined based on the scanning result.

[0033] Optionally, the at least two optical tube pairs include a first optical tube pair group and a second optical tube pair group;

[0034] The scanning action of performing at least two optical pairing tube assemblies includes:

[0035] Executing a scanning action of the first optical pair tube group;

[0036] After a first delay period, performing a scanning action of the second optical pair tube group;

[0037] The first time period is shorter than the execution time of the scanning action of the first optical pair tube assembly.

[0038] Optionally, the at least two optical tube pairs further include a third optical tube pair group;

[0039] The determining of touch information based on the scanning result includes:

[0040] Obtaining scanning results of the first optical tube pair group and the second optical tube pair group, and obtaining a first touch position based on the scanning results of the first optical tube pair group and the second optical tube pair group;

[0041] A scanning result of the third optical pair tube set is obtained, and touch information is obtained based on the scanning result of the third optical pair tube set and the first touch position.

[0042] Optionally, the touch display device further includes:

[0043] A scanning module, configured to perform a scanning action of at least two optical tube assemblies;

[0044] an acquisition module, configured to acquire scanning results of the at least two optical pairing tube groups;

[0045] A determination module is configured to determine touch information based on the scanning result.

[0046] Optionally, the at least two optical tube pairs include a first optical tube pair group and a second optical tube pair group;

[0047] The scanning module includes:

[0048] A first scanning unit, configured to perform a scanning action of the first optical pair tube group;

[0049] A delayed scanning unit, configured to execute a scanning action of the second optical pair tube group after a delay of a first time period;

[0050] The first time period is shorter than the execution time of the scanning action of the first optical pair tube assembly.

[0051] According to another aspect of the present application, a touch display device is provided, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method of the touch display device as described above.

[0052] According to another aspect of the present application, a computer storage medium is provided, in which at least one instruction, at least one program, a code set or an instruction set is stored. The at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the control method of the touch display device as described above.

[0053] According to another aspect of the present application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the control method of a touch display device provided in any of the aforementioned optional implementations.

[0054] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0055] A touch display device is provided, comprising: a display screen and at least two optical tube groups. Multiple transmitters and multiple receivers in the at least two optical tube groups can be located outside two curved edges of the display screen. The light beams emitted by the at least two optical tube groups extend in directions that intersect, forming a grid-like light scanning plane on the surface of the display screen. This light scanning plane can be used to detect the location of a user's touch point on the display screen. This arrangement keeps the light scanning plane close to the surface of the display screen, improving the accuracy of touch recognition by the touch display device. This solves the problem of low touch recognition accuracy in touch display devices in related technologies, achieving improved touch recognition accuracy for the touch display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0057] Figure 1 It is a structural diagram of a touch display device;

[0058] Figure 2 is a structural diagram of a touch display device provided in an embodiment of the present application;

[0059] Figure 3 This is a schematic structural diagram of a display screen provided in an embodiment of the present application;

[0060] Figure 4 yes Figure 3 A schematic structural diagram of another orientation of the display screen shown;

[0061] Figure 5 is a structural diagram of another touch display device provided in an embodiment of the present application;

[0062] Figure 6 This is a schematic structural diagram of a display screen and a light scanning plane provided in an embodiment of the present application;

[0063] Figure 7 is perpendicular to Figure 6 The direction of the display screen shown is looking towards the structural schematic diagram of the display screen;

[0064] Figure 8 is a structural diagram of another touch display device provided in an embodiment of the present application;

[0065] Figure 9 is a structural diagram of another touch display device provided in an embodiment of the present application;

[0066] Figure 10 is a structural diagram of another touch display device provided in an embodiment of the present application;

[0067] Figure 11 This is a flow chart of a method for controlling a touch display device provided in an embodiment of the present application;

[0068] Figure 12 is a flow chart of another method for controlling a touch display device provided in an embodiment of the present application;

[0069] Figure 13 This is a structural block diagram of a touch display device provided in an embodiment of the present application;

[0070] Figure 14 This is a structural block diagram of another touch display device provided in an embodiment of the present application.

[0071] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0072] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0073] Figure 1This is a schematic diagram of the structure of a touch display device. The touch display device 10 includes a display screen 11, a first optical pair assembly 12, and a second optical pair assembly 13. The display screen 11 is a curved screen. The first optical pair assembly 12 includes multiple first emitters 121 and multiple first receivers 122. The second optical pair assembly 13 includes multiple second emitters 131 and multiple second receivers 132. The display screen 11 includes a first side 111 and a second side 112 that oppose each other. The multiple first emitters 121 in the first optical pair assembly 12 are located outside the first side 111, and the multiple first receivers 122 in the first optical pair assembly 12 are located outside the second side 112, forming multiple horizontal light rays on the surface of the display screen 11. The display screen 11 includes a third side 113 and a fourth side 114 that are opposite each other. The plurality of second emitters 131 in the second optical pair assembly 13 are located outside the third side 113 , and the plurality of second receivers 132 in the second optical pair assembly 13 are located outside the fourth side 114 , thereby forming a plurality of vertical light rays on the surface of the display screen 11 .

[0074] The multiple horizontal and vertical light rays form a cross-sectional light scanning plane on the surface of the display screen 11. When a user touches the display screen, the user's finger or other object blocks the light passing through the touch point. The touch display device 10 determines the vertical coordinate of the touch point C1 using the horizontal light rays and the horizontal coordinate of the touch point C1 using the vertical light rays, thereby locating the touch point.

[0075] However, when the first side 111 and the second side 112 of the display screen 21 are curved, the distance between the lateral light beams formed by the second optical pair assembly 13 of the touch display device 10 and the surface of the display screen 11 is relatively large, resulting in low touch recognition accuracy of the touch display device 10. Furthermore, the touch display device 10 is provided with the optical pair assembly (the first optical pair assembly 12 and the second optical pair assembly 13) on all four edges of the display screen 11, resulting in the optical pair assembly occupying a large amount of space in the peripheral area of ​​the display screen 11.

[0076] The embodiments of the present application provide a touch display device, a control method, and a computer storage medium, which can solve the problems existing in the above-mentioned related technologies.

[0077] Please refer to Figure 2 and Figure 3 , Figure 2 is a structural diagram of a touch display device provided in an embodiment of the present application, Figure 3 Schematic diagram of a display screen provided by an embodiment of the present application. The touch display device 20 may include: a display screen 21 and at least two optical pair tube groups 22. The display screen 21 may have a first side 211 and a second side 212 opposite to each other, for example, Figure 2As shown in , the first side 211 and the second side 212 may be the upper edge and the lower edge of the display screen 21 respectively.

[0078] The display screen 21 may include a curved screen, wherein the shape of the first side 211 of the display screen 21 and the shape of the second side 212 of the display screen 21 may both be arc-shaped. The first side 211 of the display screen 21 and the second side 212 of the display screen 21 are parallel to each other. The curved screen may be a larger curved screen formed by splicing together multiple smaller curved screens.

[0079] A curved screen refers to a display surface with a certain curvature, or rather, a curved surface. This curvature generally aligns with the curvature of the human eyeball. Ergonomically, this ensures that different points on the display surface are at equal distances from the eye, eliminating visual distortion at the edges of a flat display. Curved screens also offer superior viewing angles.

[0080] Each of the at least two optical pair tube groups 22 can include multiple beamforming units 22a. Each beamforming unit 22a can include an emitter 22a1 and a receiver 22a2. The emitter 22a1 is located outside the first side 211, and the receiver 22a2 is located outside the second side 212. The light outlet of the emitter 22a1 faces the light inlet of the receiver 22a2. The emitter 22a1 can emit light, and the receiver 22a2 can receive the light emitted by the emitter 22a1. The multiple emitters 22a1 and the multiple receivers 22a2 in the at least two optical pair tube groups 22 can be located outside two sides of the display screen 21, respectively.

[0081] The at least two optical tube groups 22 may include a first optical tube group 221 and a second optical tube group 222 . The extending direction of the light emitted by the radiation unit 22a in the first optical tube group 221 intersects with the extending direction of the light emitted by the radiation unit 22a in the second optical tube group 222 .

[0082] The transmitters 22a1 of the beamforming units 22a in the first optical pair tube group 221 and the second optical pair tube group 222 can be located on the same side of the display screen 21 , and the receivers 22a2 of the beamforming units 22a in the first optical pair tube group 221 and the second optical pair tube group 222 can be located on the same side of the display screen 21 .

[0083] The light emitted by the radiating unit 22a in the first optical pair assembly 221 and the light emitted by the radiating unit 22b in the second optical pair assembly 222 form a grid-shaped light scanning plane on the surface of the display screen 21. When a user touches the surface of the display screen 21 with a finger, a stylus, or the like, at least two light rays are blocked. Because the positions of the emitter 22a1 and receiver 22a2 corresponding to each light ray are fixed, the position of the user's touch point C1 on the display screen 21 can be determined based on the positions of the emitter 22a1 and receiver 22a2 corresponding to the blocked light ray and the tilt angle of the light ray.

[0084] like Figure 4 As shown, Figure 4 yes Figure 3 A schematic structural diagram of another orientation of the display screen is shown. Figure 4 Shown Figure 3 The display screen 21 in FIG is a structural diagram of a display screen 21 viewed from the first side 211 to the second side 212. Since the curved screen has an arc, if a touch display device in the related art is used, Figure 3 or Figure 4 Use on the display 21 Figure 1 The second optical pair tube assembly 13 in the display screen 21 forms multiple horizontal light rays s1 on the surface of the display screen 21, which will cause the multiple horizontal light rays s1 to be far away from the middle part of the display screen 21. This will cause the position of the touch point C1 determined by the first optical pair tube assembly 12 to be inaccurate.

[0085] In this embodiment of the present application, the horizontal and vertical coordinates of touch point C1, and thus the location of touch point C1, can be determined by using multiple intersecting light rays formed by at least two optical pair tube groups 22 on the surface of display screen 21. Furthermore, compared to the distance L1 between the light s2 detected by the first optical pair tube group 12 and the center portion of display screen 21 in the related art, the distance L2 between the light s2 emitted by the two optical pair tube groups 22 located outside the curved first side 211 and second side 212 and display screen 21 in this embodiment of the present application can be smaller, thereby improving the detection accuracy of the touch display device 20 and enhancing the accuracy of touch recognition by the touch display device 20.

[0086] In addition, by arranging the optical tube set 22 on both edges of the display screen 21, the position of the touch point can be determined, which can reduce the space occupied by the optical tube set in the peripheral area of ​​the display screen 21 and simplify the structure of the touch display device.

[0087] It should be noted that Figure 2The dotted box corresponding to the first optical pair tube group 221 represents one beamforming unit 22a in the first optical pair tube group 221. The first optical pair tube group 221 may include multiple beamforming units 22a. Similarly, the dotted box corresponding to the second optical pair tube group 222 represents one beamforming unit 22a in the second optical pair tube group 222. The second optical pair tube group 222 may include multiple beamforming units 22a.

[0088] In summary, embodiments of the present application provide a touch display device comprising: a display screen and at least two optical tube groups, wherein the multiple transmitters and multiple receivers in the at least two optical tube groups can be located outside two curved edges of the display screen, respectively. The extension directions of the light emitted by the emitting units in the at least two optical tube groups intersect, forming a grid-like light scanning plane on the surface of the display screen. The location of the user's touch point on the display screen can be detected through this light scanning plane. This allows the light scanning plane to be closer to the surface of the display screen, thereby improving the accuracy of touch recognition by the touch display device. This solves the problem of low touch recognition accuracy in touch display devices in related technologies, thereby achieving the effect of improving the accuracy of touch recognition by the touch display device.

[0089] Alternatively, as Figure 3 As shown, the display screen 21 can be mounted on a wall 31, which can be a wall in a bank branch, a promotional exhibition hall, or a station. Since the wall in the above-mentioned scene can be a curved wall, the display screen 21 can be a curved screen so that it can better fit the shape of the wall, thereby improving the applicability of the display screen 21.

[0090] In an optional embodiment, the radiation unit 22a may include an infrared radiation tube, which includes an infrared emitting tube and an infrared receiving tube. The infrared emitting tube is a light-emitting element composed of an infrared light-emitting diode matrix, and its spectral power distribution has a central wavelength of 830nm to 950nm. The infrared receiving tube may be a photosensitive receiving tube, which may have unidirectional conductivity; when not exposed to light, the photosensitive receiving tube is non-conductive, and when exposed to light, the photosensitive receiving tube is conductive. The radiation unit 22a may also be a radiation unit for other invisible light, and this embodiment of the application is not limited to this.

[0091] Alternatively, as Figure 2As shown, the direction of light s2 emitted by the beam-receiving unit 22a in at least one of the at least two optical tube assemblies 22 forms a predetermined angle θ with the first direction f1, which is perpendicular to the first edge 211. The predetermined angle θ is greater than 0 degrees and less than 90 degrees. In other words, the dimension of light s2 emitted by the beam-receiving unit 22a in the at least one optical tube assemblies 22 in the second direction f2, which is perpendicular to the first direction f1, can be smaller. This allows the light s2 emitted by the beam-receiving unit 22a in the at least one optical tube assemblies 22 to be closer to the surface of the display screen 21, thereby improving the detection accuracy of the touch display device 20.

[0092] like Figure 5 As shown, Figure 5 2 is a schematic diagram of the structure of another touch display device provided by an embodiment of the present application. At least two optical tube assemblies 22 can be mounted in a touch frame 23. The touch frame 23 can be connected to the edge of the display screen 21 to secure the at least two optical tube assemblies 22 outside the edge of the display screen 21. The touch frame 23 can include a circuit board, and the at least two optical tube assemblies 22 can also be electrically connected to the circuit board. For example, the circuit board can include a flexible circuit board, which can be attached to the first side 211 and the second side 212 of the display screen 21.

[0093] Alternatively, as Figure 5 As shown, the first optical pair tube assembly 221 may include a first oblique radiation unit 2211, and the extension direction of the light emitted by the first oblique radiation unit 2211 forms a preset angle θ with the first direction f1 in the clockwise direction; the second optical pair tube assembly 222 includes a second oblique radiation unit 2221, and the extension direction of the light emitted by the second oblique radiation unit 2221 forms a preset angle θ with the first direction f1 in the counterclockwise direction.

[0094] The multiple light rays emitted by the multiple first oblique reflecting units 2211 in the first optical tube assembly 221 can be parallel light rays, and the multiple light rays emitted by the multiple second oblique reflecting units 2221 in the second optical tube assembly 222 can also be parallel light rays. In this way, the difficulty of installing the optical tube assembly 22 can be reduced.

[0095] Furthermore, the slope of the light emitted by the first oblique reflecting unit 2211 is the same as the slope of the light emitted by the second oblique reflecting unit 2221. This can increase the overlap between the area covered by the light emitted by the plurality of first oblique reflecting units 2211 and the area covered by the light emitted by the second oblique reflecting units 2221. This can also increase the size of the grid-shaped light scanning plane formed by the first optical tube assembly 221 and the second optical tube assembly 222 on the surface of the display screen 21, thereby increasing the detection range of the touch display device 20.

[0096] Optionally, the angle range of the preset angle θ may satisfy the following formula:

[0097]

[0098] Wherein, θ is a preset angle, L is the distance between the first side 211 and the second side 212, R is the radius of the first side 211, and H is a preset distance between the light emitted by the at least one optical pair unit and the display surface of the display screen 21 in a direction perpendicular to the display surface of the display screen 21. The preset distance H can be less than or equal to 6 centimeters.

[0099] like Figure 6 and Figure 7 As shown, Figure 6 This is a structural diagram of a display screen and a light scanning plane provided in an embodiment of the present application. Figure 7 is perpendicular to Figure 6 The structure of the display screen is shown in the figure. The distances between the ends of the light emitted by the first oblique radiating unit 2211 and the second oblique radiating unit 2221 and the display screen 21 are smaller, while the distance between the center of the light and the display screen 21 is the largest. Light rays with different slopes have different distances from the display screen 21. Therefore, the slopes of the first oblique radiating unit 2211 and the second oblique radiating unit 2221 are the same, so that the distances between the light rays emitted by the first oblique radiating unit 2211 and the display screen 21 are the same as the distances between the light rays emitted by the second oblique radiating unit 2221 and the display screen 21.

[0100] If the preset distance H is too large, misidentification can easily occur. Since users often use their index finger or a stylus to interact with the display screen 21, H can be set to ≤ 6 cm based on the detection length of the index finger or stylus. For example, if the radius R of the first side 211 of the display screen 21 is 10 m, and the distance L between the first side 211 and the second side 212 is 2 m, substituting these parameters into the formula yields θ ≤ 47.5°.

[0101] In another embodiment, the radius R of the first side 211 of the display screen 21 is 6m, the distance L between the first side 211 and the second side 212 is 2.5m, H is 5cm, and θ is approximately equal to 31.8°. In practical applications, the preset angle θ can be 30°.

[0102] It should be noted that the above formula It can be based on the following formula: Come to.

[0103] Among them, such as Figure 6As shown, the size of the light s emitted by the first oblique irradiation unit 2211 or the second oblique unit 2221 in the second direction f2 is 2x, and the relationship between half the size x of the light s in the second direction f2, the radius R of the first side 211, and the preset distance H satisfies the following relationship:

[0104] X 2 +(RH) 2 =R 2 .

[0105] like Figure 7 As shown, the distance L between the first side 211 and the second side 212 and the dimension 2x of the light s in the second direction f2 satisfy the following relationship: 2*x=L*tanθ. From this, the relevant formula for the preset angle θ can be derived.

[0106] Alternatively, as Figure 8 As shown, Figure 8 2 is a schematic diagram of the structure of another touch display device provided by an embodiment of the present application. The first optical pair group 221 may include a first oblique reflection unit 2211. The extension direction of the light emitted by the first oblique reflection unit 2211 forms a preset angle θ with the first direction f1. The second optical pair group 222 includes a vertical reflection unit 2222. The extension direction of the light emitted by the vertical reflection unit 2222 is parallel to the first direction f1. The first direction f1 can be used as the extension direction of the horizontal coordinate of the touch point, and the second direction f2 can be used as the extension direction of the vertical coordinate of the touch point. When the touch point C1 blocks a light ray emitted by the vertical reflection unit 2222 and a light ray emitted by the first oblique reflection unit 2211, the coordinates of the vertical reflection unit 2222 can be used as the horizontal coordinate of the touch point C1. This eliminates the need to reconvert the horizontal coordinate of the touch point C1, thereby reducing the computational complexity of the touch display device 20. The ordinate of touch point C1 can be obtained based on the coordinates of the first obliquely radiating unit 2211 and the preset angle θ, thereby determining the specific location of touch point C1. For example, the abscissa of touch point C1 can be t1, and the coordinate of the first obliquely radiating unit 2211 corresponding to touch point C1 can be t2. Therefore, the ordinate of touch point C1 can be (t1-t2) / tanθ.

[0107] Alternatively, as Figure 9 As shown, Figure 9This is a schematic diagram of the structure of another touch display device provided by an embodiment of the present application. The at least two optical tube groups 22 may further include a third optical tube group 223. The direction of light emitted by the beaming units in the third optical tube group 223 intersects with the direction of light emitted by the beaming units in the first optical tube group 221 and also intersects with the direction of light emitted by the beaming units in the second optical tube group 222. This increases the grid density of the grid-like light scanning plane formed on the surface of the display screen 21 by the light emitted by the at least two optical tube groups 22, thereby improving the detection accuracy of the touch display device 20.

[0108] Furthermore, the third optical pair tube group 223 can be used to identify pseudo touch points, which are touch points that cannot be accurately identified due to simultaneous operation of multiple positions on the display screen 21 and at least two positions located on the same light. Figure 9 As shown, when there are two touch points (a first touch point C2 and a second touch point C3) on the display screen 21 at the same time, since the first touch point C2 and the second touch point C3 block the same light, when the touch display device 20 includes two sets of optical tube groups 22, the exact position of the second touch point C3 cannot be accurately determined.

[0109] By providing a third optical pair tube group 223, multiple light rays can be added to determine the exact position of the second touch point C3. In this way, the detection accuracy of the touch display device 20 can be improved, and the touch display device 20 can be used for simultaneous interactive operations at multiple positions, thereby improving the applicability of the touch display device 20.

[0110] Alternatively, as Figure 9 As shown, the first optical tube assembly 221 includes a first oblique radiation unit 2211. The light emitted by the first oblique radiation unit 2211 extends in a clockwise direction at a predetermined angle θ with the first direction f1. The second optical tube assembly 222 includes a vertical radiation unit 2222. The light emitted by the vertical radiation unit 2222 extends in a direction parallel to the first direction f1. The at least two optical tube assemblies 22 further include a third optical tube assembly 223. The third optical tube assembly 223 includes a third oblique radiation unit 2231. The light emitted by the third oblique radiation unit 2231 extends in a counterclockwise direction at a predetermined angle θ with the first direction f1.

[0111] The slopes of the first oblique reflecting units 2211 and the third oblique reflecting units 2231 are the same, which can increase the overlap between the areas covered by the light emitted by the multiple first oblique reflecting units 2211 and the areas covered by the light emitted by the third oblique reflecting units 2231. This can further increase the size of the grid-shaped light scanning plane formed by the first optical tube assembly 221 and the second optical tube assembly 222 on the surface of the display screen 21, thereby increasing the detection range of the touch display device 20.

[0112] Furthermore, the grid size of the grid-shaped light scanning plane formed by the at least two optical tube sets 22 on the surface of the display screen 21 can be made more uniform, so that the detection accuracy difference at various positions of the display screen 21 of the touch display device 20 can be small.

[0113] Alternatively, as Figure 9 As shown, the first optical tube group 221 and the second optical tube group 222 can be located in the same layer, and in the extension direction of the first side 211 of the display screen 21, the reflection units in the first optical tube group 221 and the reflection units in the second optical tube group 222 are arranged alternately.

[0114] like Figure 9 As shown, the first optical tube group 221, the second optical tube group 222 and the third optical tube group 223 are located in the same layer, and in the extension direction of the first side 211 of the display screen 21, the radiation units in the first optical tube group 221 and the radiation units in the second optical tube group 222 are arranged alternately.

[0115] When the interactive content of the touch display device 20 only includes relatively simple interactive actions such as clicking or sliding, multiple optical tube groups 22 can be arranged in a layer, and the beamforming units 22a belonging to different optical tube groups 22 can be arranged alternately. In this way, the structure of the touch display device 20 can be simplified while ensuring that the grid-shaped light scanning plane formed by the multiple optical tube groups 22 on the surface of the display screen 21 meets the detection accuracy.

[0116] Or, in an alternative embodiment, as Figure 10 As shown, Figure 10 2 is a schematic structural diagram of another touch display device provided in an embodiment of the present application. Figure 10 In order to clearly show the structure of each layer in the touch display device, the three-layer optical pair tube group is shown in Figure 10 The first optical pair tube group 221 and the second optical pair tube group 222 are stacked in a direction away from the display screen.

[0117] Alternatively, the first optical tube set 221, the second optical tube set 222, and the third optical tube set 223 are stacked in a direction away from the display screen. This increases the density of the grid-like light scanning plane formed on the surface of the display screen 21 by the light emitted by at least two optical tube sets 22, thereby improving the detection accuracy of the touch display device 20.

[0118] Alternatively, as Figure 5 As shown, the display screen 21 further has a third side 213 and a fourth side 214 opposite to each other. Two ends of the third side 213 are connected to the first side 211 and the second side 212 respectively. Two sides of the fourth side 214 are connected to the first side 211 and the second side 212 respectively.

[0119] The dimensions of the at least two optical tube pairs 22 in the second direction are larger than the dimensions of the first side 211 and the second side 212, so that the grid-like light scanning plane formed by the at least two optical tube pairs 22 on the surface of the display screen 21 can cover the third side 213 and the fourth side 214 of the display screen 21, thereby further improving the detection accuracy of the touch display device 29 at the third side 213 and the fourth side 214 of the display screen 21.

[0120] like Figure 8 As shown, the at least two optical pair tube assemblies 22 may further include a supplementary emitter 22a3 and a supplementary receiver 22a4 located outside the third side 213 and the fourth side 214. The light outlet of the supplementary emitter 22a3 faces the light entrance of the receiver 22a2 located outside the second side 212, while the light entrance of the supplementary receiver 22a4 faces the light outlet of the emitter 22a1 located outside the first side 211. By arranging the supplementary emitter 22a3 and the supplementary receiver 22a4 outside the third side 213 and the fourth side 214, the at least two pair tube assemblies 22 can be prevented from being too large in the second direction f2. Furthermore, the touch display device 29 can achieve higher detection accuracy at the third side 213 and the fourth side 214 of the display screen 21.

[0121] In summary, embodiments of the present application provide a touch display device comprising: a display screen and at least two optical tube groups, wherein the multiple transmitters and multiple receivers in the at least two optical tube groups can be located outside two curved edges of the display screen, respectively. The extension directions of the light emitted by the emitting units in the at least two optical tube groups intersect, forming a grid-like light scanning plane on the surface of the display screen. The location of the user's touch point on the display screen can be detected through this light scanning plane. This allows the light scanning plane to be closer to the surface of the display screen, thereby improving the accuracy of touch recognition by the touch display device. This solves the problem of low touch recognition accuracy in touch display devices in related technologies, thereby achieving the effect of improving the accuracy of touch recognition by the touch display device.

[0122] Figure 11 1 is a flow chart of a control method for a touch display device provided in an embodiment of the present application. The method can be applied to the touch display device in any of the above embodiments. The method includes the following steps:

[0123] Step 201: Execute scanning actions of at least two optical tube assemblies.

[0124] Step 202: Obtain scanning results of at least two optical tube alignment groups.

[0125] Step 203: Determine touch information based on the scanning result.

[0126] Figure 12 This is a flow chart of another method for controlling a touch display device provided by an embodiment of the present application. The method may include the following steps:

[0127] Step 301: Execute a scanning action of the first optical tube set and the second optical tube set.

[0128] Optionally, the at least two optical tube pairs may include a first optical tube pair and a second optical tube pair. Parallel scanning operations may be performed on the at least two optical tube pairs, that is, the scanning operation of the second optical tube pair begins within a period of time between the start of the scanning operation of the first optical tube pair and the completion of the scanning operation of the first optical tube pair.

[0129] Step 301 may include the following two sub-steps:

[0130] 1) Execute a scanning action of the first optical pair tube group.

[0131] 2) After the first delay period, a scanning action of the second optical pair tube group is performed.

[0132] The first time period is shorter than the execution time of the scanning action of the first optical pair tube set.

[0133] In this way, the scanning action of the second optical tube assembly can be prevented from affecting the scanning action of the first optical tube assembly, and the execution time of the scanning actions of at least two optical tube assemblies can be saved.

[0134] Step 302: Obtain scanning results of the first optical tube pair group and the second optical tube pair group.

[0135] The scanning result may include the specific position of the beam unit to which the light blocked by the touch point belongs.

[0136] Step 303: Acquire a first touch position based on the scanning results of the first optical tube set and the second optical tube set.

[0137] The horizontal coordinate and the vertical coordinate of the touch point can be obtained according to the specific positions of the first optical tube group and the second optical tube group.

[0138] Step 304: Execute a scanning action of the third optical pair tube assembly.

[0139] Optionally, the at least two optical tube pairs further include a third optical tube pair. The scanning operation of the third optical tube pair can be performed after the scanning operation of the second optical tube pair is started and a second time period is delayed. The second time period is shorter than the execution time of the scanning operation of the second optical tube pair.

[0140] In this way, the scanning action of the third optical pair tube assembly can be prevented from affecting the scanning action of the second optical pair tube assembly, and the execution time of the scanning actions of at least two optical pair tube assemblies can be saved.

[0141] Step 305: Obtain the scanning result of the third optical pair tube group.

[0142] The third optical pair group can be used to scan again to determine the position of the touch point. In this way, when there are multiple touch points on the display screen, the problem of some of the multiple touch points not being recognized can be avoided.

[0143] Step 306: Acquire touch information based on the scanning result of the third optical pairing assembly and the first touch position.

[0144] The third optical pair tube group can be used to determine a false touch point, thereby improving the detection accuracy of the touch display device.

[0145] In summary, embodiments of the present application provide a control method for a touch display device, which is used for a touch display device comprising: a display screen and at least two optical tube groups, wherein the multiple transmitters and multiple receivers in the at least two optical tube groups can be respectively located outside two curved sides of the display screen. The extension directions of the light emitted by the emitting units in the at least two optical tube groups intersect to form a grid-like light scanning plane on the surface of the display screen, and the position of the user's touch point on the display screen can be obtained through this light scanning plane. In this way, the distance between the light scanning plane and the surface of the display screen can be made closer, which can improve the accuracy of touch recognition of the touch display device. This solves the problem of low touch recognition accuracy of touch display devices in related technologies, and achieves the effect of improving the accuracy of touch recognition of the touch display device.

[0146] Optionally, Figure 13 This is a structural block diagram of a touch display device provided in an embodiment of the present application. The touch display device 1400 may further include:

[0147] The scanning module 1410 is used to perform scanning actions of at least two optical tube assemblies.

[0148] The acquisition module 1420 is configured to acquire scanning results of at least two optical tube alignment groups.

[0149] The determination module 1430 is configured to determine touch information based on the scanning result.

[0150] Optionally, Figure 14 14 is a structural block diagram of another touch display device provided in an embodiment of the present application. The scanning module 1410 may include:

[0151] The first scanning unit 1411 is used to perform a scanning action of the first optical pair tube assembly.

[0152] The delayed scanning unit 1412 is configured to execute the scanning operation of the second optical pair tube set after a delay of a first time period, wherein the first time period is shorter than the execution time of the scanning operation of the first optical pair tube set.

[0153] According to another aspect of the present application, a touch display device is provided, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor to implement the control method of the touch display device as described above.

[0154] According to another aspect of the present application, a computer storage medium is provided, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, at least one program, code set or instruction set is loaded and executed by a processor to implement the control method of the touch display device as described above.

[0155] According to another aspect of the present application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the control method of a touch display device provided in any of the aforementioned optional implementations.

[0156] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It will also be understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it may be the only layer between the two layers or elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0157] In this application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise expressly limited.

[0158] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as 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 devices or units, which can be electrical, mechanical or other forms.

[0159] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0160] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0161] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A touch display device, characterized in that: The touch display device comprises: a display screen and at least two optical tube groups, wherein the display screen comprises a curved screen; The display screen has a first side and a second side opposite to each other, and the shapes of the first side and the second side are arc-shaped; The optical pair tube assembly includes a plurality of beamforming units, each including a transmitter and a receiver. The transmitter is located outside the first side, the receiver is located outside the second side, and the light outlet of the transmitter faces the light inlet of the receiver. The at least two optical tube groups include a first optical tube group and a second optical tube group, wherein an extension direction of light emitted by the radiation unit in the first optical tube group intersects with an extension direction of light emitted by the radiation unit in the second optical tube group; An extension direction of the light emitted by the reflecting unit in the first optical tube set or the second optical tube set has a preset angle with a first direction, where the first direction is a direction perpendicular to the first side; The angle range of the preset angle satisfies the following formula: Wherein, θ is the preset angle, L is the distance between the first side and the second side, R is the radius of the first side, and H is the preset distance between the light emitted by the reflecting unit of at least one of the optical pair tubes and the display surface of the display screen in a direction perpendicular to the display surface of the display screen, and the range of the preset distance is less than or equal to 6 cm.

2. The touch display device according to claim 1, wherein: The first optical pair tube assembly includes a first oblique radiation unit, and the extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction in the clockwise direction; The second optical pair tube assembly includes a second oblique radiation unit, and the extension direction of the light emitted by the second oblique radiation unit has the preset angle with the first direction in the counterclockwise direction.

3. The touch display device according to claim 1, wherein: The first optical pair tube assembly includes a first oblique radiation unit, and the extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction; The second optical pair tube assembly includes a vertical radiation unit, and the extension direction of the light emitted by the vertical radiation unit is parallel to the first direction.

4. The touch display device according to claim 1, wherein: The at least two optical tube pairs further include a third optical tube pair group, wherein an extension direction of light emitted by the radiation unit in the third optical tube pair group intersects with an extension direction of light emitted by the radiation unit in the first optical tube pair group and intersects with an extension direction of light emitted by the radiation unit in the second optical tube pair group.

5. The touch display device according to claim 1, wherein: The first optical pair tube assembly includes a first oblique radiation unit, and the extension direction of the light emitted by the first oblique radiation unit has the preset angle with the first direction in the clockwise direction; The second optical pair tube assembly includes a vertical radiation unit, and the extension direction of the light emitted by the vertical radiation unit is parallel to the first direction; The at least two optical tube groups further include a third optical tube group, the third optical tube group includes a third oblique radiation unit, and the extension direction of the light emitted by the third oblique radiation unit has the preset angle with the first direction in the counterclockwise direction.

6. The touch display device according to claim 1, wherein: The first optical tube group and the second optical tube group are located in the same layer, and in the extension direction of the first side of the display screen, the radiation units in the first optical tube group and the radiation units in the second optical tube group are arranged alternately; Alternatively, the first optical tube pair group and the second optical tube pair group are stacked and arranged in a direction away from the display screen.

7. The touch display device according to claim 4, wherein: The first optical tube group, the second optical tube group, and the third optical tube group are located in the same layer, and in the extension direction of the first side of the display screen, the radiation units in the first optical tube group and the radiation units in the second optical tube group are alternately arranged; Alternatively, the first optical tube set, the second optical tube set, and the third optical tube set are stacked in a direction away from the display screen.

8. The touch display device according to claim 1, wherein: The display screen further has a third side and a fourth side opposite to each other, two ends of the third side are connected to the first side and the second side respectively, and two sides of the fourth side are connected to the first side and the second side respectively; The at least two optical pair tube groups further include a supplementary transmitter and a supplementary receiver located outside the third side and the fourth side, the light outlet of the supplementary transmitter facing the light inlet of the receiver located outside the second side, and the light inlet of the supplementary receiver facing the light outlet of the transmitter located outside the first side.

9. A method for controlling a touch display device, characterized in that: For the touch display device according to any one of claims 1 to 8, the control method of the touch display device comprises: performing a scanning action of at least two optical pair tube assemblies; Obtaining scanning results of the at least two optical tube groups; Touch information is determined based on the scanning result.

10. The control method of the touch display device according to claim 9, wherein: The at least two optical tube pairs include a first optical tube pair group and a second optical tube pair group; The scanning action of performing at least two optical pairing tube assemblies includes: Executing a scanning action of the first optical pair tube group; After a first delay period, performing a scanning action of the second optical pair tube group; The first time period is shorter than the execution time of the scanning action of the first optical pair tube assembly.

11. The control method of the touch display device according to claim 10, wherein: The at least two optical pair tube groups further include a third optical pair tube group; The determining of touch information based on the scanning result includes: Obtaining scanning results of the first optical tube pair group and the second optical tube pair group, and obtaining a first touch position based on the scanning results of the first optical tube pair group and the second optical tube pair group; A scanning result of the third optical pair tube set is obtained, and touch information is obtained based on the scanning result of the third optical pair tube set and the first touch position.

12. A touch display device, characterized in that: The touch display device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method of the touch display device as described in any one of claims 9 to 11.

13. A computer storage medium, characterized in that The computer storage medium stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the control method of the touch display device as described in any one of claims 9 to 11.

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