Active pen, touch control system and touch control method

Abstract

The invention discloses an active pen, a touch control system and a touch control method.According to one embodiment, the active pen comprises a touch control strip arranged on a pen body and a processor arranged in the pen body, the touch control strip comprises an infrared sensor and a touch control area surrounding the infrared sensor, and the processor is arranged in the pen body. The infrared sensor is used for detecting the distance between a finger of a user and the touch strip, and the touch area comprises a plurality of touch electrodes arranged in an array and is used for sending or receiving a touch signal; and the processor is used for detecting the distance output by the infrared sensor according to a preset time interval, identifying a user operation intention when the distance is smaller than a preset distance threshold value, responding to the user operation intention and adjusting parameters of the active pen according to the signal received by the touch electrode. According to the embodiment, the parameters of the active pen can be flexibly adjusted, and the use efficiency and user experience of the active pen are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of active pen, in particular to an active pen, a touch system and a touch method. BACKGROUND

[0002] An active pen is a kind of intelligent handwriting pen based on digital touch technology, which is widely used in tablet computers, two-in-one devices, drawing screens and other scenarios. Unlike ordinary passive capacitive pens, active pens have built-in electronic components that can achieve high-precision writing, pressure control, tilt detection and other functions, and are suitable for professional drawing, note-taking, design creation and other needs.

[0003] The existing touch pen parameter adjustment technology mainly relies on the following schemes: (1) screen click operation: the user needs to manually select parameters such as brush thickness, transparency, etc. through the touch screen menu, and frequent switching is easy to interrupt the creation process; (2) physical button switching: some touch pens integrate buttons, such as double-clicking to switch tools, but have the problems of single function and need to remember the button combination; (3) stylus tip interaction technology: adjusting parameters through stylus tip pressure, but cannot achieve dynamic continuous adjustment. In summary, the existing active pen scheme has the problems of low interaction efficiency, high accidental touch rate, poor function expansion, etc. Parameter adjustment requires multiple click or button operations, resulting in increased time consumption, and accidental touch of physical buttons or screen edge function areas when holding, and it is difficult to support multiple parameters, such as composite adjustment of brush thickness, hardness, and transparency.

[0004] Therefore, how to flexibly adjust the parameters of the active pen has become a technical problem to be solved by those skilled in the art. SUMMARY

[0005] To solve at least one of the above problems, the first embodiment of the present application provides an active pen, comprising a touch strip arranged on a pen body, and a processor arranged in the pen body, wherein The touch strip comprises an infrared sensor and a touch area surrounding the infrared sensor, the infrared sensor is used to detect the distance between the user's finger and the touch strip, and the touch area comprises a plurality of touch electrodes arranged in an array and used to send or receive touch signals. The processor is used to detect the distance output by the infrared sensor at a preset time interval and identify a user operation intention when the distance is less than a preset distance threshold, and adjust the parameters of the active pen in response to the user operation intention and according to the signals received by the touch electrodes.

[0006] For example, in the active pen provided by some embodiments of the present application, the touch strip is arranged along the extension direction of the pen body.

[0007] For example, in the active pen provided in some embodiments of the present application, the touch strip is arranged around the pen body in a direction perpendicular to the extending direction of the pen body.

[0008] For example, in the active pen provided in some embodiments of the present application, the touch area further comprises a clicking operation area close to the infrared sensor and a sliding operation area away from the infrared sensor. The processor is configured to acquire a user finger movement trajectory and an operation instruction according to the signal received by the touch electrode, and to respond to the movement trajectory being located in the clicking operation area and the operation instruction confirming function, and to respond to the movement trajectory being located in the sliding operation area and the operation instruction adjusting corresponding parameters.

[0009] For example, in the active pen provided in some embodiments of the present application, the sliding operation area comprises a first sliding sub-area arranged on one side of the clicking operation area and a second sliding sub-area arranged on the other side of the clicking operation area. The processor responds to the movement trajectory being located in the first sliding sub-area or the second sliding sub-area and adjusts corresponding parameters according to the direction of the movement trajectory.

[0010] For example, in the active pen provided in some embodiments of the present application, the touch strip is arranged in the extending direction of the pen body, the active pen comprises a pen tip at one end of the pen body, the pen body comprises a holding area close to one side of the pen tip, and the holding area comprises a first holding sub-area and a second holding sub-area located on opposite sides of the pen body. The touch strip is located between the first holding sub-area and the second holding sub-area.

[0011] For example, in the active pen provided in some embodiments of the present application, the surface of the touch strip facing outward comprises a first surface area corresponding to the clicking operation area and the infrared sensor and a second surface area corresponding to the sliding operation area. The roughness of the first surface area is greater than the roughness of the second surface area.

[0012] For example, in the active pen provided in some embodiments of the present application, the touch strip is embedded in the pen body. The surface of the touch strip facing outward is lower than the surface of the pen body facing outward.

[0013] For example, in the active pen provided in some embodiments of the present application, the touch strip comprises a wiring layer, a touch layer and an infrared layer arranged in sequence on the pen body. The touch layer comprises the touch electrode, and the touch electrode comprises a transmitting electrode and a receiving electrode arranged in the same layer and isolated from each other. The infrared layer comprises an infrared sensor. The wiring layer includes signal lines that connect the transmitting electrode, the receiving electrode, and the infrared sensor respectively. The orthographic projection of the infrared sensor on the wiring layer does not overlap with the orthographic projection of the touch electrode on the wiring layer.

[0014] A second embodiment of the present invention provides a touch system, including a touch screen and an active pen applied to the touch screen as described in the first embodiment.

[0015] A third embodiment of the present invention provides a touch method for an active pen applied to the touch system described in the second embodiment, comprising: The processor detects the distance output by the infrared sensor of the touch bar at preset time intervals, and identifies the user's operation intention when the distance is less than a preset distance threshold; The processor responds to the user's operation intention and adjusts the parameters of the active pen according to the signals received by the touch electrodes of the touch bar.

[0016] For example, in some embodiments of the touch method provided in this application, the touch area further includes a click operation area near the infrared sensor and a slide operation area away from the infrared sensor. The slide operation area includes a first slide sub-area disposed on one side of the click operation area and a second slide sub-area disposed on the other side of the click operation area. The processor, in response to the user's operation intention, adjusts the parameters of the active pen according to the signal received by the touch electrodes of the touch bar, further including: The processor acquires the user's finger movement trajectory and operation command based on the signal received by the touch electrode. In response to the movement trajectory being located in the click operation area and the operation command confirmation function, the processor adjusts the corresponding parameters in response to the movement trajectory being located in the first sliding sub-area or the second sliding sub-area and the direction of the movement trajectory and the operation command.

[0017] For example, in some embodiments of the touch method provided in this application, when the distance is greater than or equal to a preset distance threshold, the touch method further includes: Increase the time interval; And reduce the time interval when the distance is less than a preset distance threshold.

[0018] The beneficial effects of this invention are as follows: This invention addresses existing problems by developing an active pen, a touch system, and a touch method. It utilizes an infrared sensor on a touch strip mounted on the pen to detect the distance between the user's finger and the touch strip, thus identifying the user's operational intent. The processor responds to the user's operational intent and adjusts the parameters of the active pen based on signals received from the touch electrodes. This flexible adjustment of the active pen parameters overcomes the problems in existing technologies, effectively improving the efficiency and user experience of the active pen, and has broad application prospects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This diagram illustrates the structure of the active pen according to an embodiment of the present invention. Figure 2 A top view schematic diagram of a touch bar according to an embodiment of the present invention is shown; Figure 3 This diagram illustrates the layer structure of the touch strip according to one embodiment of the present invention; Figure 4 A top view schematic diagram of the surface of the touch strip according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the active pen according to another embodiment of the present invention is shown; Figure 6 This diagram illustrates the structure of a touch system according to an embodiment of the present invention. Figure 7 A flowchart illustrating a touch method according to an embodiment of the present invention is shown. Detailed Implementation

[0021] To more clearly illustrate the present invention, the following description, in conjunction with preferred embodiments and accompanying drawings, further explains the invention. Similar components in the drawings are indicated by the same reference numerals. Those skilled in the art should understand that the specific description below is illustrative rather than restrictive and should not be construed as limiting the scope of protection of the present invention.

[0022] In response to the above situation, such as Figure 1 and Figure 2 As shown, one embodiment of the present invention provides an active pen 100, including a touch bar 20 disposed on the pen body 10 and a processor (not shown) disposed within the pen body, wherein... The touch strip 20 includes an infrared sensor 23 and a touch area surrounding the infrared sensor 23. The infrared sensor 23 is used to detect the distance between the user's finger and the touch strip 20. The touch area includes a plurality of touch electrodes 25 arranged in an array for sending or receiving touch signals. The processor is configured to detect the distance output by the infrared sensor 23 at preset time intervals and identify the user's operation intention when the distance is less than a preset distance threshold, and adjust the parameters of the active pen 100 in response to the user's operation intention and according to the signal received by the touch electrode 25.

[0023] In this embodiment, as Figure 1 The image shown is an overall schematic diagram of the active pen 100, as follows: Figure 2 The image shown is a top view of the touch bar 20. It is worth noting that... Figure 2 This illustration illustrates the positional relationship between the infrared sensor on the touch bar and the touch area. In this embodiment, a segmented touch bar 20 on the pen body 10 enables dynamic adjustment of the manual pen's parameters. Specifically, the infrared sensor 23 on the touch bar 20 performs infrared distance measurement. Based on the distance sensed by the infrared sensor 23 between the user's finger and the touch bar, the processor outputs the distance to the processor. When this distance is less than a preset distance threshold, for example, less than 0.5cm, the processor identifies the distance and determines that the user intends to operate the touch bar to adjust the parameters. When the distance is greater than the preset distance threshold, the processor determines that the user is operating the manual pen normally and does not intend to operate the touch bar. When the processor determines that the user intends to operate the touch bar, it further identifies the adjusted parameters and the direction of adjustment based on the signals received by the touch electrodes arranged in an array in the touch area, and adjusts the parameters of the active pen accordingly. In other words, the active pen provided in this embodiment achieves dynamic and flexible adjustment of the active pen's parameters through the infrared sensor and touch electrodes on the pen body, thereby effectively improving the efficiency of the active pen and the user experience.

[0024] In some alternative embodiments, the touch bar is disposed around the pen body along a direction perpendicular to the pen body's extension direction.

[0025] This embodiment arranges the long side of the touch bar 20 around the pen body to facilitate the user's finger to click or slide on the touch bar. This allows the active pen to be used for writing and drawing while the infrared sensor and touch electrodes on the touch bar are dynamically and flexibly adjusted to improve the efficiency and user experience of the active pen.

[0026] In some other alternative embodiments, such as Figure 1 As shown, the touch bar 20 is arranged along the extension direction of the pen body 10.

[0027] This embodiment sets the long side of the touch bar 20 along the extension direction of the pen body 10, so that the user's finger can click or slide on the touch bar. Thus, while writing and drawing with the active pen, the parameters of the active pen can be dynamically and flexibly adjusted by the infrared sensor and touch electrodes set on the touch bar, thereby effectively improving the efficiency of the active pen and the user experience.

[0028] like Figure 2 As shown, in some optional embodiments, the touch area further includes a click operation area 21 close to the infrared sensor 23 and a slide operation area 22 away from the infrared sensor 23; The processor is configured to acquire the user's finger movement trajectory and operation command based on the signal received by the touch electrode 25, and adjust the corresponding parameters in response to the movement trajectory being located in the click operation area 21 and the operation command confirmation function, and in response to the movement trajectory being located in the slide operation area 22 and the operation command.

[0029] In this embodiment, the flexibility and accuracy of adjusting the active pen parameters are improved by structurally configuring the sensors in the touch bar and dividing the touch area into regions. Specifically, when the distance between the user's finger and the touch bar, sensed by the infrared sensor, is less than a preset distance threshold, indicating the user's intention to adjust the active pen, parameter selection and confirmation rules are implemented through the divided touch areas. For example, the movement trajectory of the user's finger is obtained through the touch electrodes in the touch area. When the user's finger is in the click operation area, the parameter function to be adjusted is determined according to the operation command, such as a single click, double click, or long press operation on the electrode operation area; or when the user's finger is in the swipe operation area, the parameter is adjusted according to the operation command, such as confirming the adjustment trend of the parameter based on the area where the user's finger is located and the direction of the movement trajectory.

[0030] For example, for an active pen with a touch bar horizontally encircling the pen body, an infrared sensor measures the distance and confirms the user's intention to adjust parameters. Then, the user's finger movements on the electrode operation area of ​​the touch bar—such as single-click, double-click, or long-press—confirm the parameter to be adjusted, for example, identifying the specific parameter to be adjusted. Furthermore, the user's finger movements on the touch bar's sliding operation area confirm the adjustment trend of the parameter; for example, different movement trajectories in different areas may cause the parameter to adjust from large to small or from small to large. Similarly, for an active pen with a touch bar vertically positioned on the pen body, an infrared sensor measures the distance and confirms the user's intention to adjust parameters. Then, the user's finger movements on the electrode operation area of ​​the touch bar confirm the parameter to be adjusted, and the user's finger movements on the sliding operation area confirm the adjustment trend of the parameter, thus achieving dynamic adjustment of the active pen parameters.

[0031] In a specific embodiment, such as Figure 3 The diagram shows the layer structure of the touch bar 20, which includes a wiring layer 201, a touch layer 202, and an infrared layer 203 stacked sequentially on the pen body. The touch layer 202 includes the touch electrodes (not shown), which include a transmitting electrode and a receiving electrode disposed in the same layer and isolated from each other; The infrared layer 203 includes an infrared sensor 23; The wiring layer 201 includes signal lines that connect the transmitting electrode, the receiving electrode, and the infrared sensor respectively. The orthographic projection of the infrared sensor on the wiring layer does not overlap with the orthographic projection of the touch electrode on the wiring layer.

[0032] In this embodiment, the touch bar is configured as a layered structure, consisting of a bottom wiring layer 201, a touch layer 202 on the wiring layer 201, and an infrared layer 203 on the touch layer 202. The infrared layer 203 includes an infrared sensor 23, and the touch layer 202 includes an array of touch electrodes. In the orthographic projection of the wiring layer, the touch electrodes and the infrared sensor do not overlap, and the touch electrodes are distributed around the infrared sensor. The touch electrodes include transmitting electrodes and receiving electrodes, which are disposed on the same layer and isolated from each other. The transmitting electrodes transmit signals, and the receiving electrodes receive signals. The transmitting electrodes, receiving electrodes, and infrared sensors are respectively connected to the corresponding signal lines in the wiring layer through vias, and the signals sensed by the touch electrodes and infrared sensors are transmitted to the processor through the signal lines. For example, the processor obtains the distance between the user's finger and the touch bar based on the signal sensed by the infrared sensor to determine whether the user intends to touch the touch bar and modify the active pen parameters. Another example is that the processor fits the motion trajectory based on the signal received by the receiving electrode to determine whether the user's finger performs a click or swipe operation. Thus, the processor processes the received signals and realizes the dynamic adjustment of the manual pen parameters.

[0033] In some alternative embodiments, such as Figure 2 As shown, the sliding operation area 22 includes a first sliding sub-area 221 disposed on one side of the click operation area 21, and a second sliding sub-area 222 disposed on the other side of the click operation area 21; The processor responds to the motion trajectory being located in the first sliding sub-region 221 or the second sliding sub-region 222, and adjusts the corresponding parameters according to the direction of the motion trajectory.

[0034] In this embodiment, the sliding operation area is further refined into a first sliding sub-area and a second sliding sub-area, and the parameters are dynamically adjusted according to the movement trajectory direction of the user's finger in different areas. In a specific example, when the touch bar is set to wrap around the pen body horizontally or vertically, for example, when the user's finger operates on the operation area and determines the function of adjusting the thickness of the pen line, the line thinning operation is set in the first sliding sub-area along the direction away from the infrared sensor, and the line thickening operation is set in the second sliding sub-area along the direction away from the infrared sensor. Thus, by determining the adjustment details of the active pen parameters in different sliding sub-areas and different trajectory directions, the parameter settings of the active pen can be dynamically and flexibly adjusted.

[0035] In some alternative embodiments, such as Figure 1 As shown, the touch bar 20 is arranged along the extension direction of the pen body 10, the active pen 100 includes a pen tip located at one end of the pen body 10, the pen body 10 includes a grip area 26 near the pen tip, and the grip area 26 includes a first grip sub-area (not shown) and a second grip sub-area (not shown) located on the opposite side of the pen body. The touch bar 20 is located between the first grip sub-area and the second grip sub-area.

[0036] In this embodiment, the common pen-holding postures of users when writing and drawing with an active pen are further considered, such as... Figure 1 In the area shown in the grip area 26, a touch bar 20 is provided between the grip position of the thumb and the grip position of the index finger, so that the touch bar can be operated by either the thumb or the index finger. During the use of the active pen, the touch bar can be operated at will, for example, each area of ​​the touch bar is within the operable range of the thumb and the index finger.

[0037] To further illustrate the specific implementation of this application, a specific example is given: For instance, when a user reads an article on a tablet computer, they need to use an active pen to implement note-taking functions, highlight and annotate key content, and have an eraser function to remove and correct errors during the note-taking process.

[0038] First, the functions can be customized on the user terminal, i.e., a tablet computer. For example, the active pen touch bar can be set to allow for line thickness adjustment, line transparency adjustment, and eraser functions. Furthermore, functions can be selected and switched by clicking the operation area, and the function trend can be adjusted by sliding the operation area. Specifically, taking the touch bar extending along the pen body as an example, in the click operation area in the middle of the touch bar, a single click enters the default line thickness adjustment function, and a double click enters the function switching. For example, a series of double clicks will switch between functions in the order of "line thickness adjustment" - "line transparency adjustment" - "eraser function". A long press will revert to the previous function. For example, a series of long presses will switch between functions in the order of "eraser function" - "line transparency adjustment" - "line thickness adjustment". Meanwhile, in the sliding operation areas on both sides of the touch bar, for example, when in the "line thickness setting function" or "eraser function," the user's finger moves upward in the direction away from the pen tip, making the line thicker; conversely, the user's finger moves downward in the direction closer to the pen tip, making the line thinner. As another example, when in the "line transparency setting function," the user's finger moves upward in the direction away from the pen tip, increasing transparency; conversely, the user's finger moves downward in the direction closer to the pen tip, decreasing transparency.

[0039] Secondly, during use, for example, when writing or taking notes, the controller responds to a click on the touch bar's operation area to enter the "line thickness setting function." Simultaneously, based on the detected motion trajectory moving downwards towards the pen tip, the line thins to facilitate writing and note-taking. Another example is when highlighting key content. The controller responds to a click on the touch bar's operation area to enter the "line thickness setting function." A double-click selects the "line transparency setting function." If both sides are double-clicked consecutively, a long press selects the "line transparency setting function." After confirming the function, based on the detected motion trajectory moving upwards away from the pen tip, the transparency increases. Simultaneously, responding to another click on the touch bar's operation area to enter the "line thickness setting function," the line thickens based on the detected motion trajectory moving upwards away from the pen tip, facilitating highlighting on the text—meaning the text is displayed while the annotation is being made. For example, when it's necessary to delete highlighted content, the controller responds to a click on the touch bar's operation area to enter the "Line Thickness Setting Function." A double-click selects the "Eraser Function." After confirming the function, based on the detected motion trajectory moving away from the pen tip and upwards, the line thickens, and the active pen is then used to delete the highlighted content. Through this process, dynamic and flexible parameter adjustments are achieved during active pen use, effectively improving the user experience.

[0040] To further improve operational accuracy, in some optional embodiments, such as Figure 4 As shown, the outer surface of the touch bar includes a first surface area 31 corresponding to the click operation area 21 and the infrared sensor (not shown), and a second surface area 32 corresponding to the slide operation area 22; The roughness of the first surface region 31 is greater than the roughness of the second surface region 32.

[0041] In this embodiment, as Figure 4 The diagram shows a schematic representation of the surface of the touch bar 20, specifically its outer surface. It includes a first surface area 31 located in the center of the touch bar 20 and second surface areas 32 located on either side. By setting different roughnesses for different surface areas, the tactile feedback to the user's fingers is improved, making them easier to distinguish and thus enhancing operational accuracy. Specifically, the outer surface of the touch bar is formed using materials with different roughnesses. For example, a rough material, such as a frosted material, is used for the surface corresponding to the click operation area, while a smooth material, such as a polished material, is used for the surface corresponding to the sliding operation area. These different materials further differentiate different functional areas, reducing accidental touches and improving operational accuracy.

[0042] To further improve operational accuracy, in some optional embodiments, such as Figure 5 As shown, the touch strip 20 is embedded in the pen body 10; The outer surface of the touch bar 20 is lower than the outer surface of the pen body 10.

[0043] In this embodiment, Figure 5 The side view of the active pen 100 shows that the surface of the touch bar is lower than the surface of the pen body. This design further prevents users from accidentally touching the click and swipe areas of the touch bar, ensuring that users only touch the touch bar when they intend to. Specifically, by embedding the touch bar 20 within the pen body, the distance detected by the infrared sensor will not meet the distance threshold unless the user actively and intentionally touches the touch bar. Furthermore, users are less likely to touch the click and swipe areas of the touch bar when only touching the pen body surface; thus further preventing accidental modification of the active pen's parameters.

[0044] Based on the active pen of the above embodiments, one embodiment of the present invention also provides a touch system 1000, such as... Figure 6 As shown, it includes a touch screen 500 and an active pen 100 applied to the touch screen 500, as described in the above embodiment.

[0045] The touch system 1000 of this embodiment includes an active pen 100 and a touch screen 500 for writing or drawing with the active pen 100. The infrared sensor of the touch strip 20 set on the pen body 10 of the active pen 100 detects the distance between the user's finger and the touch strip to identify the user's operation intention. The processor responds to the user's operation intention and adjusts the parameters of the active pen according to the signal received by the touch electrodes. It can flexibly adjust the parameters of the active pen, which makes it convenient for users to write or draw on the touch screen with the active pen. For example, adjusting the line thickness, adjusting the line transparency, or erasing the written or drawn content. Thus, during the use of the active pen, the active pen parameters can be flexibly, freely and smoothly adjusted through the touch strip set on the pen body, which effectively improves the use efficiency of the active pen and the user experience, and has broad application prospects.

[0046] Based on the active pen of the above embodiments, one embodiment of the present invention also provides a touch control method, such as... Figure 7 As shown, it includes: The processor detects the distance output by the infrared sensor of the touch bar at preset time intervals, and identifies the user's operation intention when the distance is less than a preset distance threshold; The processor responds to the user's operation intention and adjusts the parameters of the active pen according to the signals received by the touch electrodes of the touch bar.

[0047] In this embodiment, a processor installed in the pen body determines the user's operation intention based on the distance sensed by the infrared sensor on the touch bar of the pen body. When it is confirmed that the user intends to adjust the parameters, the processor confirms the touch position, movement trajectory or touch operation of the user's finger based on the signal received by the touch electrode of the touch bar and adjusts the parameters of the active pen, thereby flexibly adjusting the parameters of the active pen and improving the efficiency of the active pen and the user experience.

[0048] In some optional embodiments, the touch area further includes a click operation area near the infrared sensor and a slide operation area away from the infrared sensor. The slide operation area includes a first slide sub-area disposed on one side of the click operation area and a second slide sub-area disposed on the other side of the click operation area. The processor, in response to the user's operation intention, further adjusts the parameters of the active stylus according to the signal received by the touch electrodes of the touch bar, including: The processor acquires the user's finger movement trajectory and operation command based on the signal received by the touch electrode. In response to the movement trajectory being located in the click operation area and the operation command confirmation function, the processor adjusts the corresponding parameters in response to the movement trajectory being located in the first sliding sub-area or the second sliding sub-area and the direction of the movement trajectory and the operation command.

[0049] In this embodiment, the touch bar is divided into regions to distinguish between the infrared sensor, the click operation area, and the infrared sensor itself. Furthermore, the sliding operation area is further subdivided into a first sliding sub-area and a second sliding sub-area. The parameters are dynamically adjusted based on the movement trajectory of the user's finger in different areas. For specific implementation details of this embodiment, please refer to the foregoing embodiments, which will not be repeated here.

[0050] In some optional embodiments, when the distance is greater than or equal to a preset distance threshold, the touch method further includes: Increase the time interval; And reduce the time interval when the distance is less than a preset distance threshold.

[0051] In this embodiment, considering the power consumption of the active pen, the processor obtains the distance between the user's finger and the touch bar based on the infrared sensor. When this distance is greater than a preset distance threshold, for example, greater than 0.5cm, it is determined that the user has no intention of adjusting the active pen parameters. At this time, the processor reduces the reading frequency of the infrared sensor to 1Hz, i.e., increases the preset time interval to 1s, thereby reducing the power consumption of the active pen. Conversely, when the distance between the user's finger and the touch bar obtained by the infrared sensor is less than the preset distance threshold, for example, less than 0.5cm, it is determined that the user intends to adjust the active pen parameters, and the processor increases the reading frequency of the infrared sensor to 60Hz, i.e., reduces the preset time interval, for example, from 1s to 16.7ms, thereby improving the accuracy and flexibility of the active pen parameter adjustment.

[0052] This invention addresses existing problems by developing an active pen, a touch system, and a touch method. It utilizes an infrared sensor on a touch strip mounted on the pen to detect the distance between the user's finger and the touch strip, thus identifying the user's operational intent. The processor responds to the user's operational intent and adjusts the parameters of the active pen based on signals received from the touch electrodes. This flexible adjustment of the active pen parameters overcomes the problems in existing technologies, effectively improving the efficiency and user experience of the active pen, and has broad application prospects.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. An active pen, characterized in that, This includes a touch bar on the pen body and a processor inside the pen body. The touch bar includes an infrared sensor and a touch area surrounding the infrared sensor. The infrared sensor is used to detect the distance between the user's finger and the touch bar. The touch area includes multiple touch electrodes arranged in an array for sending or receiving touch signals. The processor is configured to detect the distance output by the infrared sensor at preset time intervals and identify the user's operation intention when the distance is less than a preset distance threshold, and adjust the parameters of the active pen in response to the user's operation intention based on the signal received by the touch electrode.

2. The active pen according to claim 1, characterized in that, The touch bar is positioned along the extension direction of the pen body; or The touch bar is arranged perpendicular to the extension direction of the pen body and surrounds the pen body.

3. The active pen according to claim 2, characterized in that, The touch area also includes a click operation area close to the infrared sensor and a slide operation area away from the infrared sensor; The processor is configured to acquire the user's finger movement trajectory and operation command based on the signal received by the touch electrode, and adjust the corresponding parameters in response to the movement trajectory being located in the click operation area and the operation command confirmation function, and in response to the movement trajectory being located in the slide operation area and the operation command.

4. The active pen according to claim 3, characterized in that, The sliding operation area includes a first sliding sub-area disposed on one side of the click operation area, and a second sliding sub-area disposed on the other side of the click operation area; The processor responds to the motion trajectory being located in the first sliding sub-region or the second sliding sub-region, and adjusts the corresponding parameters according to the direction of the motion trajectory.

5. The active pen according to claim 4, characterized in that, The touch bar is arranged along the extension direction of the pen body. The active pen includes a pen tip located at one end of the pen body. The pen body includes a grip area near the pen tip. The grip area includes a first grip sub-area and a second grip sub-area located on the opposite side of the pen body. The touch bar is located between the first grip sub-area and the second grip sub-area.

6. The active pen according to claim 3, characterized in that, The outer surface of the touch bar includes a first surface area corresponding to the click operation area and the infrared sensor, and a second surface area corresponding to the slide operation area; The roughness of the first surface region is greater than that of the second surface region.

7. The active pen according to claim 6, characterized in that, The touch bar is embedded in the pen body; The outer surface of the touch bar is lower than the outer surface of the pen body.

8. The active pen according to any one of claims 1-7, characterized in that, The touch bar includes a wiring layer, a touch layer, and an infrared layer that are stacked sequentially on the pen body; The touch layer includes the touch electrodes, and the touch electrodes include transmitting electrodes and receiving electrodes disposed in the same layer and isolated from each other; The infrared layer includes an infrared sensor; The wiring layer includes signal lines that connect the transmitting electrode, the receiving electrode, and the infrared sensor respectively. The orthographic projection of the infrared sensor on the wiring layer does not overlap with the orthographic projection of the touch electrode on the wiring layer.

9. A touch system, characterized in that, Includes a touch screen and an active pen applied to the touch screen, as described in any one of claims 1-8.

10. A touch method for an active pen applied to the touch system of claim 9, characterized in that, include: The processor detects the distance output by the infrared sensor of the touch bar at preset time intervals, and identifies the user's operation intention when the distance is less than a preset distance threshold; The processor responds to the user's operation intention and adjusts the parameters of the active pen according to the signals received by the touch electrodes of the touch bar.

11. The touch method according to claim 10, characterized in that, The touch area further includes a click operation area near the infrared sensor and a slide operation area away from the infrared sensor. The slide operation area includes a first slide sub-area disposed on one side of the click operation area and a second slide sub-area disposed on the other side of the click operation area. The processor, responding to the user's operation intention, further adjusts the parameters of the active stylus according to the signal received by the touch electrodes of the touch bar, including: The processor acquires the user's finger movement trajectory and operation command based on the signal received by the touch electrode. In response to the movement trajectory being located in the click operation area and the operation command confirmation function, the processor adjusts the corresponding parameters in response to the movement trajectory being located in the first sliding sub-area or the second sliding sub-area and the direction of the movement trajectory and the operation command.

12. The touch method according to claim 10, characterized in that, When the distance is greater than or equal to a preset distance threshold, the touch method further includes: Increase the time interval; And reduce the time interval when the distance is less than a preset distance threshold.

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