Touch generator, optical touch system and touch control method

Abstract

According to the embodiments of the present application, a touch generator, an optical touch system, and a touch control method are disclosed, in which a pressure detection unit detects the force-receiving state of a force-receiving member, and when the force-receiving member touches a display panel, the pressure detection unit detects that the force-receiving member has received a force and sends a control signal, and a light-emitting unit receives the control signal and causes the force-receiving member to emit light that is emitted to the display panel, thereby avoiding the occurrence of false touches, and the operation is simple, greatly reducing the difficulty of using the touch generator.

Description

[Technical field]

[0001] The present application relates to the field of touch control, and in particular to a touch generator, an optical touch system and a touch control method. [Background technology]

[0002] Display As the decline of fossil fuels continues day by day, solar energy, as a new renewable energy, has become an important part of the energy used by humans. In the past decade, solar energy application technology has developed rapidly in various countries around the world. With the development of technology, display devices with interaction functions have attracted more and more attention. For example, a display screen with a touch function can not only display images, but also timely feed back people's intentions to the screen. In optical touch display technology, erroneous touches are likely to occur when used with close-range touch. For example, if the optical touch pen continues to emit light while writing or drawing with the optical touch pen, unnecessary touch marks are likely to occur on the screen when adjusting the touch position of the optical touch pen, making the handwriting or drawing unclear, and when the light emission of the optical touch pen is controlled by a switch, the difficulty of use increases, the operation becomes complicated, and writing and drawing become inconvenient. Summary of the Invention

[0003] The working environment for solar panels is limited to outdoors. The maximum temperature that can affect the operation of solar panels is The problem is not wind, rain, and lightning, but dust accumulated over the years. Dust or other deposits on a solar panel affect the transmittance of the panel and hinder photoelectric efficiency, which seriously affects the efficiency of the panel to directly capture sunlight, reduces the energy absorption and conversion efficiency of the panel, and reduces the power generation efficiency. According to the embodiments of the present application, a touch generator, an optical touch system, and a touch control method are provided that can solve the technical problem that erroneous touches are easily generated and the operation is complicated when an optical touch pen is used for close-distance touching.

[0004] According to an embodiment of the present application, a body and A force-receiving member connected to the main body; a pressure detection unit for detecting the pressure of the force-receiving member and transmitting a control signal; A touch generator is provided, the touch generator including: a light-emitting unit disposed within the body and electrically connected to the pressure-detecting unit, the light-emitting unit receiving the control signal and generating light that is emitted through the force-receiving material.

[0005] Optionally, in another embodiment of the present application, the touch generator further comprises a light guide disposed within the body; The force-receiving member is provided with a light outlet, The light-guiding material is disposed between the light-emitting unit and the light outlet.

[0006] Optionally, in another embodiment of the present application, the touch generator further includes a lens disposed between the light guide and the light outlet.

[0007] Optionally, in another embodiment of the present application, the lens is provided on the force receiving material; The touch generator further includes an elastic member disposed within the body, one end connected to the body and the other end connected to the force-receiving member.

[0008] Optionally, in another embodiment of the present application, a first fixing step is provided in the body; The force-receiving member is provided with a second fixed step, The elastic member has one end in contact with the first fixed step and the other end in contact with the second fixed step.

[0009] Optionally, in another embodiment of the present application, the first fixed step and the second fixed step are both annular.

[0010] Optionally, in another embodiment of the present application, the touch generator further includes a communication module electrically connected to the pressure detection unit for communicatively connecting with an external device.

[0011] Optionally, in another embodiment of the present application, the touch generator further includes a mechanical switch electrically connected to the light-emitting unit for keeping the light-emitting unit in a light-emitting state or turning it off.

[0012] Optionally, in another embodiment of the present application, the touch generator further includes a power supply module disposed in the body for supplying power to the touch generator.

[0013] According to an embodiment of the present application, there is further provided an optical touch system, including the above-mentioned touch generator for generating light, and a display panel provided with a light-sensing unit for sensing the light generated by the touch generator.

[0014] Optionally, in another embodiment of the present application, the light-sensing unit includes a plurality of light-sensing elements distributed in an array.

[0015] According to an embodiment of the present application, the steps include: controlling a photosensitive unit to convert light into an electrical signal when receiving the light; controlling a microcontroller module to analyze touch data upon receiving the electrical signal; and controlling a display panel based on the touch data to display a touch operation corresponding to the light.

[0016] Optionally, in another embodiment of the present application, the photosensitive unit includes a plurality of photosensitive elements; The step of controlling the photosensitive unit to convert light into an electrical signal upon receiving the light includes a step of controlling one or more of the photosensitive elements to convert the light into an electrical signal upon receiving the corresponding light.

[0017] Optionally, in another embodiment of the present application, the step of controlling a microcontroller module to analyze touch data upon receiving the electrical signal comprises: calculating coordinates of the light-sensitive elements that receive the light; and acquiring the touch data based on coordinates of the light-sensitive elements that receive the light.

[0018] Optionally, in another embodiment of the present application, the touch data includes a touch position; The step of obtaining the touch data based on coordinates of the light sensitive elements that receive the light includes the step of calculating the touch position based on coordinates of the light sensitive elements that receive the light.

[0019] Optionally, in another embodiment of the present application, the touch data further includes a pressure sensitivity level; The step of acquiring the touch data based on the coordinates of the light-sensitive element that receives the light includes: calculating a light spot area based on the coordinates of the light sensitive element receiving the light; and calculating the pressure sensitivity level based on the light spot area.

[0020] Optionally, in another embodiment of the present application, the step of controlling a microcontroller module to analyze touch data upon receiving the electrical signal comprises: calculating coordinates of the light-sensitive element that receives the light and acquiring the intensity of the light received by the light-sensitive element; and obtaining the touch data by combining the coordinates of the light-sensitive elements that receive the light with the intensity of the light received by the light-sensitive elements.

[0021] Optionally, in another embodiment of the present application, the touch data includes a touch position; The step of acquiring the touch data by combining the coordinates of the light-sensitive element receiving the light and the intensity of the light received by the light-sensitive element includes: calculating a position corresponding to the light having a maximum intensity based on the coordinates of the light-sensitive element that receives the light and the intensity of the light received by the light-sensitive element, thereby obtaining the touch position; or The method includes a step of comparing the intensities of the light received by a plurality of the light sensitive elements, and determining the coordinates of the light sensitive element corresponding to the light with the maximum intensity as the touch position.

[0022] Optionally, in another embodiment of the present application, the touch location further includes a pressure sensitivity level; The step of acquiring the touch data by combining the coordinates of the light-sensitive element receiving the light and the intensity of the light received by the light-sensitive element includes: The method further includes calculating the pressure level based on the light having a maximum intensity.

[0023] Optionally, in another embodiment of the present application, the step of controlling a microcontroller module to analyze touch data upon receiving the electrical signal includes a step of the microcontroller module analyzing the touch data upon receiving the electrical signal and a pressure code signal. Effect of the Invention

[0024] According to the embodiments of the present application, a touch generator, an optical touch system and a touch control method are disclosed. A pressure detection unit detects the force-receiving state of a force-receiving material, and when the force-receiving material touches a display panel, the pressure detection unit detects that the force-receiving material receives a force and sends a control signal, and the light-emitting unit receives the control signal and generates light that is emitted from the force-receiving material to the display panel. By setting in this way, the occurrence of erroneous touch can be avoided, and the operation is simple, and the difficulty of using the touch generator is greatly reduced. [Brief description of the drawings]

[0025] In order to more clearly describe the technical solutions in the embodiments of the present application, the following briefly describes the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are merely other embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

[0026] [Figure 1] 1 is a schematic diagram showing the structure of an optical touch system according to an embodiment of the present application; [Diagram 2] FIG. 2 is a diagram illustrating the operation principle of the optical touch system according to the embodiment of the present application. [Diagram 3] FIG. 2 is another operational principle diagram of the optical touch system according to an embodiment of the present application; [Figure 4] FIG. 2 is a schematic diagram illustrating a flow chart 1 of a touch control method according to an embodiment of the present application. [Diagram 5] 1 is a schematic flowchart 1 illustrating step B4 of a touch control method according to an embodiment of the present application. [Figure 6] 4 is a schematic flowchart illustrating step B42 of a touch control method according to an embodiment of the present application. [Figure 7] 2 is a schematic flowchart illustrating step B4 of a touch control method according to an embodiment of the present application; [Figure 8] 4 is a schematic flowchart illustrating step B42' of a touch control method according to an embodiment of the present application. [Figure 9] 2 is a schematic flow chart 2 illustrating a touch control method according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, the technical means in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and are not all of the embodiments. All other embodiments obtained based on the embodiments of the present application on the premise that a person skilled in the art did not perform creative labor are all within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described in this specification are only intended to explain and interpret the present application, and do not limit the present application. In this application, unless otherwise stated, directional terms used, such as "up" and "down", generally refer to the top and bottom of the device in actual use or operation state, specifically the drawing direction in the drawings, and "inside" and "outside" are relative to the contour of the device.

[0028] According to the embodiments of the present application, a touch generator, an optical touch system, and a touch control method are provided. The following will be described in detail. Note that the order of description of the following embodiments does not limit the preferred order of the embodiments.

[0029] Referring to FIG. 1, according to an embodiment of the present application, a touch generator 100 is provided, which includes a body 111, a force-receiving material 112, a light-emitting unit 120, and a pressure-detecting unit 130. The force-receiving material 112 is connected to the body 111. The pressure-detecting unit 130 is used to detect the pressure of the force-receiving material 112 and send a control signal. The light-emitting unit 120 is provided in the body 111 to be electrically connected to the pressure-detecting unit 130, and is used to receive the control signal and generate light to be emitted through the force-receiving material 112. The touch generator 100 according to the embodiment of the present application is applied to a display panel 200 provided with a light-sensing unit 210. The light-sensing unit 210 can sense the light generated by the touch generator 100, thereby realizing optical touch.

[0030] According to the touch generator 100 of the embodiment of the present application, the pressure detection unit 130 detects the force receiving state of the force receiving material 112. When the force receiving material 112 touches the display panel 200, the pressure detection unit 130 detects that the force receiving material 112 receives a force, and the light emitting unit 120 generates light which is emitted from the force receiving material 112 to the display panel 200. By setting in this way, the touch generator 100 can emit light only when it touches the display panel 200, and the light sensing unit 210 senses the light to realize the optical touch. Meanwhile, when the touch generator 100 does not touch the display panel 200, the touch generator 100 does not emit light, and the light sensing unit 210 cannot sense the light, so that erroneous touching can be avoided, and the operation is simple, and the difficulty of using the touch generator 100 is greatly reduced.

[0031] Here, in an embodiment of the present application, the light spot and / or intensity of the light emitted from the force-receiving material 112 is adjusted based on the magnitude of the pressure of the force-receiving material 112 detected by the pressure detection unit 130, so that the magnitude of the pressure of the force-receiving material 112 is presented by the optical characteristics of the light, and the display panel 200 can convert it into a pressure sensitivity level based on the optical characteristics of the light received by the photosensitive unit 210.

[0032] Specifically, in the embodiment of the present application, the light emitting unit 120 may include at least one light source, the pressure detection unit 130 detects that the force receiving material 112 receives a force, and the light source generates light. In the embodiment, the light source may be one, two, three or more, and the specific number of the light sources may be adjusted according to the actual situation, and is not limited herein.

[0033] Specifically, in the embodiment of the present application, the light source may be specifically a laser generator, and the intensity of the light generated by the laser generator is high, which is advantageous for ensuring the sensitivity and accuracy of touch. In addition, the specific selection of the light source can be appropriately modified according to the selection of the actual situation and specific needs, for example, the light source may be a light emitting diode (LED), as long as it is ensured that the light source can generate and transmit light, and is not uniquely limited here.

[0034] 1, the touch generator 100 further includes a light guide 140 disposed in the body 111, and the receiving member 112 is provided with a light outlet 1121, specifically, the light outlet 1121 is disposed at one end of the receiving member 112 away from the body 111, and the light guide 140 is disposed between the light emitting unit 120 and the light outlet 1121. In this structure, the light guide 140 is disposed in the light propagation path, and the light is emitted from the receiving member 112 after passing through the light guide 140, and the light guide 140 can play a light guiding role, effectively improving the light utilization rate and making the light emitted from the light source more uniform.

[0035] 1, the light guide 140 extends along the longitudinal direction of the main body 111 and has a light entrance surface, a light exit surface, and a side surface, the light entrance surface and the light exit surface are disposed opposite to each other, the side surface is disposed between the light entrance surface and the light exit surface, the light entrance surface is connected to the side surface, the light exit surface is connected to the side surface, the light entrance surface is disposed facing the light emitting unit 120, and the light exit surface is disposed facing the light receiving material 112. In this structure, the light emitted from the light emitting unit 120 enters the light guide 140 from the light entrance surface, is transmitted through the light guide 140, and is finally emitted from the light exit surface.

[0036] Specifically, the light guide 140 may be provided with a reflecting material on the side surface so as to reflect light. In this structure, when light is transmitted inside the light guide 140, a part of the light is emitted to the side surface of the light guide 140, and after being reflected by the side surface of the light guide 140, this part of the light can return to the inside of the light guide 140 again, and finally exit from the light exit surface of the light guide 140, so that the light utilization rate can be ensured.

[0037] 1, the touch generator 100 further includes a lens 150 disposed between the light-guiding material 140 and the light outlet 1121. In this structure, the lens 150 is disposed in the light propagation path, and the light is emitted from the light receiving material 112 after passing through the lens 150, and the lens 150 can focus the light, thereby improving the accuracy of the light propagation.

[0038] 1, the lens 150 is disposed on the force receiving material 112, and the touch generator 100 further includes an elastic material 160 disposed in the body 111. The elastic material 160 may be, but is not limited to, a spring. One end of the elastic material 160 is connected to the body 111, and the other end is connected to the force receiving material 112. In this structure, the force receiving material 112 is provided on the main body 111 so as to be stretchable, the elastic material 160 connects the main body 111 and the force receiving material 112, when the elastic material 160 is in a compressed state, the force receiving material 112 contracts into the main body 111, and when the elastic material 160 is in a natural state or an extended state, the force receiving material 112 extends from within the main body 111, and when the force receiving material 112 of the touch generator 100 is pressed against the display panel 200, the force receiving material 112 moves the lens 150 in the direction of the light emitting unit 120, thereby changing the distance between the lens 150 and the light emitting unit 120, and the light spot and intensity of the light emitted from the force receiving material 112 can be changed.

[0039] 1, a first fixed step 1111 is provided in the main body 111, and a second fixed step 1122 is provided in the force receiving member 112. One end of the elastic member 160 abuts against the first fixed step 1111, and the other end abuts against the second fixed step 1122, so that the force receiving member 112 is provided on the main body 111 in an expandable and contractible manner.

[0040] Specifically, as shown in FIG. 1, the light-guiding material 140 is provided on a first fixed step 1111, and the first fixed step 1111 and the second fixed step 1122 are both annular, so that light can be emitted from the light exit port 1121.

[0041] Specifically, as shown in FIG. 1, the pressure detection unit 130 is provided on a first fixed step 1111 so as to be connected to the elastic material 160, and thus the elasticity of the elastic material 160 can be detected, and thus the pressure of the force-receiving material 112 can be obtained.

[0042] 1, the touch generator 100 further includes a communication module 170 electrically connected to the pressure detection unit 130 for communication with an external device. In this structure, the pressure detection unit 130 can transmit a code signal of the magnitude of the pressure after detecting the pressure of the force-receiving material 112, and the communication module 170 transmits the code signal to the display panel 200.

[0043] Specifically, as shown in Fig. 1, the touch generator 100 further includes a mechanical switch 180 electrically connected to the light-emitting unit 120. The mechanical switch 180 can keep the light-emitting unit 120 in a light-emitting state or in an off state. When the mechanical switch 180 keeps the light-emitting unit 120 in a light-emitting state, the touch generator 100 is used for long-distance touch; when the mechanical switch 180 puts the light-emitting unit 120 in an off state, the touch generator 100 can press the force-receiving material 112 to make the light-emitting unit 120 emit light.

[0044] 1 to 3, the touch generator 100 further includes a power supply module 190 provided in the body 111 for supplying power to the touch generator 100. The power supply module 190 is electrically connected to the pressure detection unit 130, the light emitting unit 120 and the communication module 170.

[0045] Referring to FIG. 1, according to an embodiment of the present application, there is further provided an optical touch system, including the above-mentioned touch generator 100 and a display panel 200 provided with a light-sensing unit 210 for sensing light and converting the light into an electrical signal.

[0046] In the optical touch system according to the embodiment of the present application, by pressing the force-receiving material 112 of the touch generator 100 against the display panel 200, the pressure detection unit 130 detects that the force-receiving material 112 receives a force, the light-emitting unit 120 generates light from the force-receiving material 112 to be emitted to the display panel 200, and the light-sensing unit 210 senses the light, thereby realizing near-field optical touch. Naturally, according to the selection of actual situations and specific needs, the light-emitting unit 120 uses the mechanical switch 180 to generate light from the force-receiving material 112 to be emitted to the display panel 200, and the light-sensing unit 210 senses the light, thereby realizing long-field optical touch.

[0047] Specifically, the photosensitive unit 210 may be provided on the light-emitting side of the display panel 200, that is, the photosensitive unit 210 may be provided on the light-emitting side of the display panel 200 after the display panel 200 is manufactured, and the photosensitive unit 210 may be electrically connected to the display panel 200. Of course, according to the selection of the actual situation and specific needs, the photosensitive unit 210 may be integrated inside the display panel 200, specifically, the photosensitive unit 210 may be integrated on the array substrate of the display panel 200, and the function of sensing light may also be realized, and is not limited here.

[0048] Specifically, as shown in FIG. 1 , the photosensitive unit 210 includes a plurality of photosensitive elements 211 for receiving light and converting the light into an electrical signal, and the plurality of photosensitive elements 211 are distributed in an array to detect the light transmitted from the touch generator 100.

[0049] Specifically, in the embodiment of the present application, the photosensitive element 211 is specifically a photodiode that can convert light into an electrical signal, and the electrical signal here may be a current or a voltage. The photodiode is very sensitive to changes in light and has unidirectional conductivity. When the light intensity is different, the electrical signal converted by the photodiode has a different intensity. Therefore, in the embodiment of the present application, the accuracy of the touch can be improved by changing the light intensity. For example, the photosensitive element 211 where the intensity of the received light is maximum may be set as the touch position. It should be noted that, according to the selection of the actual situation and the specific needs, the photosensitive element 211 may be other devices that can sense light, and is not uniquely limited here.

[0050] Here, the photosensitive element 211 may be an external light sensor provided on the display panel 200, or the photosensitive element 211 may be integrated into the display panel 200, specifically according to actual needs.

[0051] 1 to 3, the display panel 200 further includes a microcontroller module 220 for receiving an electrical signal transmitted from the photosensitive unit 210 and analyzing touch data. Specifically, the touch data may include a pressure sensitivity level and a touch position. The microcontroller module 220 calculates and obtains the pressure sensitivity level and the touch position based on the electrical signal, analyzes the touch data, and then causes the display panel 200 to react and display the touch data, thereby displaying a touch point or a touch mark on the display panel 200.

[0052] In addition, the microcontroller module 220 is further used to receive the code signal sent from the pressure detection unit 130 according to the selection of the actual situation and specific needs. Specifically, the microcontroller module 220 is communicatively connected to the communication module, and the pressure detection unit 130 can send a code signal of the magnitude of the pressure after detecting the pressure of the force-receiving member 112, and the communication module 170 sends the code signal to the microcontroller module 220, and the microcontroller module 220 receives the code signal and the electrical signal, and analyzes the touch data according to the code signal and the electrical signal. Here, the touch data includes a pressure-sensitive level and a touch position, and the microcontroller module 220 can decode the code signal to obtain the pressure-sensitive level and calculate the electrical signal to obtain the touch position.

[0053] 1, 2 and 4, a touch control method using the above optical touch system is further provided according to an embodiment of the present application. The touch control method includes step B3 of controlling the photosensitive unit 210 to convert light into an electrical signal when receiving light, step B4 of controlling the microcontroller module 220 to analyze touch data when receiving the electrical signal, and step B5 of controlling the display panel 200 to display a touch operation corresponding to the light according to the touch data. Here, the touch operation refers to locating and tracking the movement trajectory of the touch generator 100 according to the touch data, and the movement trajectory of the touch generator 100 can be displayed on the display panel 200 to realize functions such as drawing, writing, and interaction.

[0054] According to the touch control method of the embodiment of the present application, the pressure detection unit 130 detects the force-receiving state of the force-receiving material 112. When the force-receiving material 112 touches the display panel 200, the pressure detection unit 130 detects that the force-receiving material 112 has received a force, the light-emitting unit 120 generates light which is emitted from the force-receiving material 112 to the display panel 200, the photosensitive unit 210 of the display panel 200 receives the light and converts the light into an electrical signal, and the microcontroller module 220 receives the electrical signal and analyzes the touch data, thereby realizing optical touch.

[0055] Optionally, in step B4 of the embodiment of the present application, the touch data may specifically include a touch position and a pressure sensitivity level, and of course, according to the selection of an actual situation and specific needs, the touch data may include other data, and is not uniquely limited herein.

[0056] Specifically, as shown in Figures 4 and 9, before performing the above-mentioned step B3, the touch control method further includes step B1 of detecting the pressure of the force-receiving material 112 when the force-receiving material 112 touches the display panel 200 and controlling the pressure detection unit 130 to send a control signal based on the pressure, and step B2 of controlling the light-emitting unit 120 to generate light when the control signal is received.

[0057] Specifically, as shown in Figures 1 and 2, in step B1, the light emitted from the light-emitting unit 120 is emitted after being processed by the light-guiding material 140. In this structure, the light-guiding material 140 can perform a light-guiding function and can effectively improve the light utilization rate.

[0058] Specifically, as shown in Figures 1 and 2, in step B2, a lens 150 is provided in the light propagation path, and the light passes through the lens 150 after being processed by the light-guiding material 140, and the lens 150 can focus the light, thereby improving the accuracy of the light propagation.

[0059] 1 and 2, after passing through the light guide 140 and the lens 150, the light reaches and is received by the light sensing unit 210, which converts the received light into an electrical signal and transmits it, and when the light intensity is different, the corresponding electrical signal has a different intensity. Similarly, the microcontroller module 220 receives electrical signals with different intensities, and the analyzed touch data is also different, so in the embodiment of the present application, the light intensity can be changed to improve the accuracy of the touch, for example, the position where the light intensity received by the display panel 200 is maximum can be set as the touch position.

[0060] Specifically, as shown in FIG. 1 and FIG. 2, in the above step B2, the light intensity is changed by the control signal, while the control signal is generated according to the pressure, that is, the light intensity is changed according to the pressure intensity.

[0061] Optionally, the light intensity may be adjusted and changed by changing the current of the light-emitting unit 120. In this embodiment, when the pressure received by the force-receiving material 112 is small, the current of the light-emitting unit 120 is reduced under the control of the control signal, so that the light-emitting unit 120 generates light with a low intensity accordingly, and when the pressure received by the force-receiving material 112 is large, the current of the light-emitting unit 120 is increased under the control of the control signal, so that the light-emitting unit 120 generates light with a high intensity accordingly.

[0062] As shown in Fig. 1 and Fig. 2, after the light reaches the display panel 200, the photosensitive unit 210 receives the light, and the area of ​​the light received by the photosensitive unit 210 varies depending on the size of the light spot, that is, the size of the light spot also affects the detection situation of the photosensitive unit 210. In the embodiment of the present application, the light spot is changed according to the strength of the pressure, so that the pressure received by the force receiving material 112 can be calculated based on the size of the light spot, and can be presented on the display panel 200 according to the thickness of the handwriting. Specifically, the area of ​​the light received by the photosensitive unit 210 is the light spot area, and when the light spot of the light is large, the area of ​​the light received by the photosensitive unit 210 is also large, and when the light spot of the light is small, the area of ​​the light received by the photosensitive unit 210 is also small.

[0063] Optionally, the focusing degree of the light can be changed by changing the distance between the light-emitting unit 120 and the lens 150, thereby changing the size of the light spot appearing on the photosensitive unit 210. In this embodiment, as shown in FIG. 1, when the pressure received by the force-receiving material 112 is small, the distance between the light-emitting unit 120 and the lens 150 is large, and when the pressure received by the force-receiving material 112 is large, the distance between the light-emitting unit 120 and the lens 150 is small, and by setting in this way, the size of the light spot can be changed.

[0064] 1 and 2, the photosensitive unit 210 includes a plurality of photosensitive elements 211. In the above step B3, controlling the photosensitive unit 210 to convert the light into an electrical signal when receiving the light includes controlling one or more of the photosensitive elements 211 to convert the light into an electrical signal when receiving the corresponding light.

[0065] Specifically, in the embodiment of the present application, the photosensitive element 211 is specifically a photodiode that can convert light into an electrical signal, and the electrical signal here may be a current or a voltage. The photodiode is very sensitive to changes in light and has unidirectional conductivity. When the light intensity is different, the electrical signal converted by the photodiode has different intensities. Therefore, in the embodiment of the present application, the accuracy of the touch can be improved by changing the light intensity. For example, the photosensitive element 211 in the display panel 200 where the intensity of the received light is maximum may be set as the touch position. It should be noted that, according to the selection of the actual situation and specific needs, the photosensitive element 211 may be other devices that can sense light, and is not uniquely limited here.

[0066] Specifically, as shown in FIG. 5, in the above step B4, the step of controlling the microcontroller module 220 to analyze the touch data when receiving an electrical signal includes step B41 of calculating the coordinates of the photosensitive element 211 that receives the light, and step B42 of obtaining the touch data based on the coordinates of the photosensitive element 211 that receives the light.

[0067] 6, in the above step B42, the touch data includes a touch position, and the step of acquiring the touch data based on the coordinates of the photosensitive element 211 that receives the light specifically includes step B421 of calculating the touch position based on the coordinates of the photosensitive element 211 that receives the light. Specifically, when there is only one photosensitive element 211 that receives the light, the coordinates of the photosensitive element 211 that receives the light are the touch position, and when there are multiple photosensitive elements 211 that receive the light, the center point of the coordinates of the multiple photosensitive elements 211 that receive the light is the touch position, or the area between the coordinates of the multiple photosensitive elements 211 that receive the light is the touch position.

[0068] Specifically, as shown in Fig. 6, in the above step B42, the touch data further includes a pressure-sensitive level, and the step of obtaining the touch data based on the coordinates of the light-sensitive element 211 receiving the light specifically includes step B422 of calculating a light spot area based on the coordinates of the light-sensitive element 211 receiving the light, and step B423 of calculating a pressure-sensitive level based on the light spot area. In this embodiment, the pressure-sensitive level corresponding to the light spot area is obtained in a first relationship mapping table, where the first relationship mapping table is a mapping relationship between the light spot area and the pressure-sensitive level. In the first relationship mapping table, one light spot area may correspond to one pressure-sensitive level, or multiple light spot areas may correspond to one pressure-sensitive level.

[0069] 7, in the above step B4, the step of controlling the microcontroller module 220 to analyze touch data when receiving an electrical signal includes step B41' of calculating the coordinates of the photosensitive element 211 that receives light and the intensity of light received by the photosensitive element 211, which correspond one-to-one, and step B42' of combining the coordinates of the photosensitive element 211 that receives light and the intensity of light received by the photosensitive element 211 to obtain touch data. In this embodiment, the touch accuracy can be improved by combining the coordinates of the photosensitive element 211 that receives light and the intensity of light received by the photosensitive element 211 to obtain touch data.

[0070] In addition, in the above step B41', the photosensitive element 211 can convert light into an electrical signal, which may be a current or a voltage, and when the intensity of the light is different, the intensity of the converted electrical signal will be different, so that the intensity of the light received by the photosensitive element 211 can be inversely estimated based on the electrical signal received by the microcontroller module 220.

[0071] Specifically, as shown in FIG. 8, in the above step B42', the touch data includes the touch position, and the step of acquiring the touch data by combining the coordinates of the photosensitive element 211 that receives the light and the intensity of the light received by the photosensitive element 211 specifically includes step B421' of acquiring the touch position by calculating the position corresponding to the light with the maximum intensity based on the coordinates of the photosensitive element 211 that receives the light and the intensity of the light received by the photosensitive element 211, or comparing the intensities of light received by multiple photosensitive elements 211 and determining the coordinates of the photosensitive element 211 corresponding to the light with the maximum intensity as the touch position.

[0072] Specifically, as shown in FIG. 8, in the above step B42', the touch position further includes a pressure-sensitive level, and the step of obtaining touch data by combining the coordinates of the light-sensitive element 211 receiving the light and the intensity of the light received by the light-sensitive element 211 specifically includes a step B422' of calculating a pressure-sensitive level based on the light with the maximum intensity. In this embodiment, a pressure-sensitive level corresponding to the light with the maximum intensity is obtained in a second relationship mapping table, where the second relationship mapping table is a mapping relationship between the light intensity and the pressure-sensitive level. In the second relationship mapping table, one light intensity may correspond to one pressure-sensitive level, or multiple light intensities may correspond to one pressure-sensitive level.

[0073] Specifically, in the above embodiment, the pressure-sensitive level can be obtained without relying on an electric signal. Specifically, as shown in FIG. 3 and FIG. 9, in the above step B1, when the force-receiving member 112 touches the display panel 200, the pressure of the force-receiving member 112 is detected, and the pressure detection unit 130 is controlled to transmit a control signal and a code signal, which is a signal carrying pressure-sensitive level information, based on the pressure. In the above step B4, when the electric signal and the code signal of the pressure are received, the microcontroller module 220 is controlled to analyze the touch data. In this embodiment, the pressure detection unit 130 transmits the code signal to the microcontroller module 220 via the communication module 170, and the touch data includes the touch position and the pressure-sensitive level, the microcontroller module 220 calculates the pressure-sensitive level based on the code signal and calculates the touch position based on the electric signal, and the method of the microcontroller module 220 calculating the touch position based on the electric signal can adopt the method of the above embodiment.

[0074] Above, the touch generator, the optical touch system and the touch control method according to the present application have been introduced in detail, and the present application has been described in detail by applying specific examples. The above description of the examples is only used to facilitate understanding of the method and its core idea of ​​the present application. At the same time, those skilled in the art will recognize that there are changes in the specific embodiments and application scope based on the idea of ​​the present application, and therefore the contents of this application should not be construed as limitations of the present application.

Claims

1. A body having a first fixed step therein; a force receiving member having a light outlet at an end away from the body and a second fixed step at an end close to the body, a lens being provided within the force receiving member, and the force receiving member being connected to the body by an elastic member having one end abutting against the first fixed step and the other end abutting against the second fixed step; a pressure detection unit provided on the first fixed step for detecting the elasticity of the elastic material to obtain the pressure of the force-receiving material and transmitting a control signal; a light guide member provided on a side of the first fixed step away from the force receiving member; a light emitting unit provided in the body so as to be electrically connected to the pressure detection unit, the light emitting unit receiving the control signal and generating light to be emitted through the force receiving material; Here, the first fixed step and the second fixed step are both annular, and the light passes through the light guide and the lens in sequence and is output from the light outlet. Touch generator.

2. Further comprising a communication module electrically connected to the pressure detection unit for communicating with an external device. The touch generator of claim 1 .

3. Further comprising a mechanical switch electrically connected to the light emitting unit for keeping the light emitting unit in a light emitting state or turning it off. The touch generator of claim 1 .

4. a power supply module disposed within the body for providing power to the touch generator; The touch generator of claim 1 .

5. A touch generator according to claim 1 for generating light; a display panel provided with a light-sensing unit for sensing the light generated by the touch generator; Optical touch system.

6. The photosensitive unit includes a plurality of photosensitive elements distributed in an array. The optical touch system of claim 5 .

7. A touch control method using the optical touch system of claim 5, controlling the photosensitive unit to convert light into an electrical signal upon receiving the light; controlling a microcontroller module to analyze touch data upon receiving the electrical signal; and controlling a display panel to display a touch operation corresponding to the light based on the touch data. Touch control method.

8. The photosensitive unit includes a plurality of photosensitive elements, said step of controlling said photosensitive unit to convert said light into an electrical signal upon receiving said light includes controlling one or more of said photosensitive elements to convert said light into an electrical signal upon receiving said corresponding light. The touch control method according to claim 7.

9. The step of controlling a microcontroller module to analyze touch data upon receiving the electrical signal includes: calculating coordinates of the light sensitive elements receiving the light; acquiring the touch data based on coordinates of the light-sensitive elements that receive the light; The touch control method according to claim 8.

10. the touch data includes a touch location; The step of acquiring the touch data based on the coordinates of the light-sensitive element that receives the light includes the step of calculating the touch position based on the coordinates of the light-sensitive element that receives the light. The touch control method of claim 9.

11. The touch data further includes a pressure level. The step of acquiring the touch data based on the coordinates of the light-sensitive element that receives the light includes: calculating a light spot area based on the coordinates of the light sensitive element receiving the light; and calculating the pressure sensitivity level based on the light spot area. The touch control method of claim 10.

12. The step of controlling a microcontroller module to analyze touch data upon receiving the electrical signal includes: calculating coordinates of the light-sensitive element that receives the light and acquiring the intensity of the light received by the light-sensitive element; and acquiring the touch data by combining the coordinates of the light-sensitive elements that receive the light with the intensity of the light received by the light-sensitive elements. The touch control method according to claim 8.

13. the touch data includes a touch location; The step of acquiring the touch data by combining the coordinates of the light-sensitive element receiving the light and the intensity of the light received by the light-sensitive element includes: calculating a position corresponding to the light having a maximum intensity based on the coordinates of the light-sensitive element that receives the light and the intensity of the light received by the light-sensitive element, thereby obtaining the touch position; or a step of comparing the intensities of the light received by a plurality of the light-sensitive elements, and determining the coordinates of the light-sensitive element corresponding to the light having the maximum intensity as a touch position; The touch control method of claim 12.

14. The touch location further includes a pressure sensitivity level; The step of acquiring the touch data by combining the coordinates of the light-sensitive element receiving the light and the intensity of the light received by the light-sensitive element includes: Calculating the pressure level based on the light having a maximum intensity. The touch control method of claim 13.

15. and controlling a microcontroller module to analyze touch data upon receiving the electrical signal includes analyzing the touch data upon receiving the electrical signal and a pressure code signal by the microcontroller module. The touch control method according to claim 7.

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