A device, method and computer-readable medium for automatically constructing a three-dimensional model using a stylus pen

Abstract

The present invention discloses a device, method and computer-readable storage medium for automatically constructing a three-dimensional model of a stylus pen. The device comprises: a specification setting unit, which sets information related to the specifications of the stylus pen, wherein the specifications include the radius, height and material characteristic parameters related to the tip, core and ring of the stylus pen; and a three-dimensional model generating unit, which generates a three-dimensional model of one or more styluses and touch graphics based on one or more sets of acquired specification setting parameters of the stylus pen combined with one or more touch graphics of a touch panel and the process stacking of the touch panel.

Description

Technical Field

[0001] The present invention relates to an automatic three-dimensional model construction system, and in particular to an automatic three-dimensional model construction system which preferably constructs a stylus three-dimensional model with the aid of a computer. . Background Art

[0002] With the explosive growth of smart phones and tablet computers, more and more application software requires higher-precision touch, such as painting software, etc. As a result, the use of styluses has become increasingly widespread, and the performance requirements for styluses have become increasingly higher.

[0003] Capacitive touch technology has been widely used in touch panels. Users can perform input operations by hand or capacitive stylus, and various applications can be generated according to the unique actions corresponding to the capacitive stylus. For example, a capacitive touch panel is composed of a glass substrate with a conductive film on both sides, and a thin SiO2 dielectric layer is covered on the upper electrode. The upper electrode is used to form a flat capacitor with the human body (ground) to sense the capacitance change, while the lower electrode is used to shield the external signal interference.

[0004] Currently, the capacitive stylus on the market is mainly divided into passive capacitive and active capacitive. The passive type imitates the touch effect of fingers. The pen tip is a conductive material, such as conductive foam, metal, or brush. As long as the pen tip is enough to affect the capacitance change, it will work. Therefore, the passive capacitive stylus has a very thick tip. For example, the old 5-8mm stylus uses the current of the human body through the conductive pen body and then radiates on the touch panel for use.

[0005] An active capacitive stylus is a stylus that achieves high precision, low cost, and good user experience based on the existing capacitive touch screen system. The use of a 2.4mm active stylus is completely different from a passive capacitive stylus. Unlike an ordinary passive capacitive stylus, an active capacitive stylus itself is equivalent to a signal transmitter. The sensor of the touch screen receives the signal from the capacitive stylus and calculates the X, Y, and Z coordinates, which can achieve an effect similar to the actual pen tip thickness. In addition, adding a pressure sensor to the capacitive stylus allows the pen to sense changes in the user's writing force, so that the thickness of the handwriting can be changed according to the change in writing force, achieving an excellent user experience. Summary of the invention

[0006] In the process of touch graphics design in the field of panels and mobile phones, it is usually necessary to pre-build one or more stylus models to extract pen capacitance and analyze capacitance values, so as to quickly evaluate the quality of touch graphics and the accuracy of using different styluses.

[0007] This application is completed in view of the above problems, and its purpose is to provide a device and method for automatically building a three-dimensional model with a stylus pen. The present invention is implemented as follows:

[0008] A device for automatically constructing a three-dimensional model of a stylus pen comprises: a specification setting unit, which sets information related to the specifications of the stylus pen, wherein the specifications include the radius, height and material characteristic parameters related to the tip, core and ring of the stylus pen; and a three-dimensional model generating unit, which generates a three-dimensional model of one or more styluses and a touch panel based on one or more sets of acquired specification setting parameters of the stylus pen in combination with one or more touch graphics of a touch panel and the process stack of the touch panel.

[0009] Preferably, the device for automatically constructing a stylus pen three-dimensional model further comprises a storage unit, wherein the storage unit stores one or more stylus pen specification setting files, wherein the stylus pen specification setting files comprise specification data of the stylus pen and material property data of the stylus pen.

[0010] Preferably, the device for automatically constructing a three-dimensional model of a stylus pen further comprises an output unit, wherein the output unit displays a visualized picture of a three-dimensional model of one or more styluses and a touch panel.

[0011] In one implementation, the stylus pen is an active capacitive stylus pen.

[0012] Preferably, the automatic construction device of the stylus pen three-dimensional model also includes a position setting unit, which sets the coordinate position of the stylus pen on the touch graphic based on the operation of the input unit, and the three-dimensional model generation unit also generates a three-dimensional model of one or more styluses and a touch panel based on one or more groups of acquired coordinate positions of the stylus pen on the touch graphic combined with one or more touch graphics of the touch panel and the process stack of the touch panel.

[0013] In one implementation, the coordinate position of the stylus pen includes a center position of the stylus pen tip placed on the touch pattern, a multi-point coordinate position, and a plurality of discontinuous specific coordinate positions.

[0014] Preferably, the automatic construction device of the stylus pen three-dimensional model also includes a posture setting unit, which sets the posture parameters of the stylus pen on the touch graphic based on the operation of the input unit, and the three-dimensional model generation unit also generates a three-dimensional model of one or more styluses and touch panels based on one or more sets of acquired posture parameters of the stylus pen on the touch graphic combined with one or more touch graphics of the touch panel and the process stack of the touch panel.

[0015] In one implementation, the gesture parameter of the stylus includes a tilt angle or direction of the stylus.

[0016] The present invention also provides a method for automatically constructing a three-dimensional model of a stylus pen, characterized in that it comprises the following steps:

[0017] Setting at least one of specification parameters, position parameters, and posture parameters of the stylus;

[0018] Based on at least one of the set specification parameters, position parameters, and posture parameters of the stylus, combined with one or more touch patterns of the touch panel and the process stacking of the touch panel, a three-dimensional model of one or more styluses and the touch panel is generated; and

[0019] The generated three-dimensional models of one or more styluses and a touch panel are outputted through a visual interface.

[0020] The present invention also provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the above-mentioned method for automatically constructing a three-dimensional model of a stylus are implemented.

[0021] In the present invention, by setting the specifications, position, angle and rotation direction of the stylus, touch graphics with different designs and coupling capacitance values ​​of styluses with different settings are simulated and analyzed, and the advantages and disadvantages of the touch graphics and the accuracy trends of different capacitive pen structures are evaluated at the same time, thereby accelerating the evaluation speed of the touch graphics and capacitive pens, and optimizing the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stylus pen three-dimensional model building device according to the first embodiment of the present invention;

[0023] Figure 2 This is an example of a setting interface for the specifications of the touch pen according to the first embodiment of the present invention;

[0024] Figure 3 is an example of a three-dimensional model of a touch pen and a touch panel constructed according to the first embodiment of the present invention;

[0025] Figure 4 It is a stylus pen three-dimensional model building device according to the second embodiment of the present invention;

[0026] Figure 5 An example of a setting interface for position setting and posture setting of the touch pen provided by the present invention;

[0027] Figure 6 An example of a three-dimensional model of a touch pen and a touch panel constructed according to the second embodiment of the present invention;

[0028] Figure 7 It is a stylus pen three-dimensional model building device according to the third embodiment of the present invention;

[0029] Figure 8 9 is an example of a three-dimensional model of a touch pen and a touch panel constructed according to the third embodiment of the present invention;

[0030] Fig.10 It is a stylus pen three-dimensional model building device according to a fourth embodiment of the present invention;

[0031] Fig.11 A schematic flowchart of constructing a three-dimensional model of a stylus provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The following is a detailed description of the stylus pen 3D model construction device provided by the present invention through specific embodiments in conjunction with the accompanying drawings. The present invention takes the automatic construction of a 3D model of an active capacitive stylus pen as an example, but the invention is not limited thereto.

[0035] Implementation method 1:

[0036] The stylus pen three-dimensional model building device involved in the present invention is implemented by, for example, a computer terminal (or server) installed with dedicated application software (multiple applications such as the stylus pen three-dimensional model generation program involved in the present invention). The computer terminal (or server) can implement the functions described below by executing processes related to multiple applications, including the hardware resources required to implement the functions, such as a keyboard, mouse, hard disk, and display device. In a specific example, the stylus pen three-dimensional model building device can be an electronic device with a touch screen, such as a desktop PC, a laptop computer, a tablet computer PAD (portable android device, referred to as "PAD") or a mobile phone and other mobile or non-mobile electronic devices, and these electronic devices can be collectively referred to as "terminals".

[0037] Figure 1FIG. 1 is a diagram showing the structure of a stylus pen 3D model building device using a functional block diagram according to an embodiment of the present invention.

[0038] like Figure 1 As shown, the stylus pen 3D model building device 100 according to the present embodiment includes a specification setting unit 101 , a 3D model generating unit 102 , a storage unit 103 , and an output unit 104 .

[0039] According to the user's input, the specification setting unit 101 sets information related to the specifications of the stylus. Specifically, the specification setting unit 101 sets the specifications of the stylus, and the specifications include parameters such as radius, height, and material properties related to the tip, core, and ring of the stylus. The specification setting unit 101 can accept the specification parameters of the stylus input by the user through an input device such as a keyboard, a mouse, a joystick, etc., and can also communicate with a remote server or a cloud server through an external I / F through a wired or wireless network to obtain the setting value of the specification of the stylus.

[0040] In one implementation, one or more input menus are displayed on the touch panel of the terminal, and the input menus display one or more specification labels of the stylus as options to receive user input on the touch panel. The stylus specification setting unit 101 sets the specification information of the stylus according to the input content.

[0041] Figure 2 An example of a touch pen specification setting interface is shown.

[0042] like Figure 2 As shown, the stylus specification setting tab consists of three parts:

[0043] a) Pen tip parameter setting tab: including the pen tip hemisphere radius (Pen Ball Outer Radius) and the pen tip insulation parameter (Pen Ball Permittivity).

[0044] b) Pen tip parameter setting label: As the main electrode part of the stylus, set one or more of the hemispherical radius of the bottom of the pen tip (Pen Tip Radius), the top diameter of the pen tip (Pen Tip Top diameter), the bottom diameter (Pen Tip Bottom diameter), and the pen tip height (Pen Tip Height).

[0045] c) Pen ring parameter setting label: As the ground electrode part of the active stylus, one or more of the pen ring thickness (Pen ring thickness), pen ring height (Pen ring Height), pen ring top diameter (Pen ring Top diameter), bottom diameter (Pen ring Bottom diameter) and distance from the pen ring to the tip (Distance From Ring to Tip Bottom) can be set.

[0046] In one implementation, the specification setting unit 101 stores one or more sets of set stylus specifications in the storage unit 103 .

[0047] Examples of hardware used to implement the storage unit 103 are non-volatile, large-capacity storage devices, such as CD (Compact Disc), DVD (Digital Versatile Disk), SD memory card (Secure Digital memory card), USB (Universal Serial Bus) memory card, HDD (Hard Disk Drive), SSD (Solid State Drive) and other storage devices.

[0048] Optionally, the storage unit 103 is implemented by a storage device such as a random access memory (RAM) included in a computer. The other components of the stylus pen 3D model building device 100 are usually implemented by software. Obviously, they can be implemented by software, firmware, hardware or any combination of the three.

[0049] The three-dimensional model generation program of the stylus pen and the data of the storage unit 103 can be developed or provided independently of each other. To show this fact, Figure 1 The storage unit 103 is shown outside the stylus pen 3D model building device. However, they can also be included in the stylus pen 3D model building device. That is, the storage unit 103 can be incorporated into the stylus pen 3D model building device by being closely combined with other constituent components.

[0050] The 3D model generating unit 102 receives one or more sets of specification setting parameters of the touch pen from the specification setting unit 101 . Optionally, the 3D model generating unit 102 also loads one or more sets of specification setting parameters of the touch pen from the storage unit 103 .

[0051] The 3D model generation unit 102 generates a 3D model based on the acquired one or more sets of stylus specification setting parameters combined with one or more touch patterns (eg, Figure 3 The non-stylus structure at the bottom of the figure) and the pre-set touch panel process stackup (as shown in Table 1 below) are run with the 3D RC extraction analysis tool suite, RCExplorerFPD TM -TP RC Calculation tool, which ultimately generates a 3D model of one or more styluses and touch panels, such as Figure 3 shown.

[0052] Table 1

[0053]

[0054] Optionally, the present invention stores the generated three-dimensional model structure of one or more active styluses and TP in the storage unit 103 .

[0055] In one implementation, the storage unit 103 stores more than one set of stylus pen specification setting files, where the stylus pen specification setting files include stylus pen specification data and stylus pen material property data.

[0056] In one implementation, the present invention sets an identification tag ID for each generated stylus 3D model, and uses the tag identification ID of each stylus 3D model as a file name to associate with a setting specification setting file of each stylus.

[0057] One or more pre-stored stylus specification setting files may be directly selected from the storage unit 103 and loaded and used in the stylus 3D model building device.

[0058] The generated three-dimensional model of one or more stylus pens and the touch panel TP may be output through the output unit 104 for the user to view.

[0059] The output unit 104, for example, includes a visualization unit that displays a visualization screen of a three-dimensional model of one or more styluses and the touch panel TP (see Figure 3 ). In addition, the output unit 104 only needs to display various screens on the visualization unit, but is not limited thereto. For example, it can also be displayed on a display device (for example, a large screen device, etc.) connected to the computer terminal via a communication network.

[0060] After the specification setting unit 101 completes setting of the structural parameters of the stylus model, the 3D model generating unit 102 generates the stylus model based on the pen structural parameters set by the specification setting unit 101 and displays it on the display device through the output unit 104 for the user to view.

[0061] After the stylus three-dimensional model is generated, the stylus three-dimensional model is made to contact one or more touch graphics on the touch panel to perform a touch operation, so that the touch panel receives a touch signal emitted from the pen tip of the stylus three-dimensional model. The terminal can respond to the touch signal after parsing the touch signal through a processor (such as a CPU). For example, if the stylus three-dimensional model is an active capacitive stylus three-dimensional model and the touch panel is a capacitive screen, the touch panel can be coupled to sense the touch signal and respond.

[0062] There are two main ways to calculate the capacitance of the sensing electrode of the touch panel: one is the self-capacitance mode, and the other is the mutual capacitance mode. The self-capacitance mode senses the capacitance value change of the entire axis (X-axis or Y-axis), while the mutual capacitance mode senses the capacitance value change of a single intersection point of two axes (X-axis or Y-axis). The mutual capacitance mode mainly uses active scanning. For example, when scanning a certain axis (X-axis or Y-axis), the changes in the sensing capacitance values ​​of all axes (Y-axis or X-axis) are detected at the same time. By scanning in sequence, the changes in the sensing capacitance values ​​of each intersection point of the X and Y axes can be obtained. Therefore, the overlapping effect of the self-capacitance mode can be avoided, and the function of multi-touch operation can be performed. There are many numerical algorithms for mutual capacitance extraction, among which the boundary element method is widely used due to its advantages of high accuracy, few variables, and strong ability to handle complex boundaries.

[0063] In a preferred implementation of the present invention, RCExplorerFPD-TP RC Calculation is used to perform capacitance extraction calculation on the touch operation of the stylus three-dimensional model on the touch graphics using a boundary element algorithm. Specifically, the touch panel has a touch sensor array, and the touch sensor array includes a matrix of N×M electrodes (N receiving electrodes and M transmitting electrodes), and the matrix also includes transmitting (TX) electrodes and receiving (RX) electrodes. The transmitting and receiving electrodes in the electrode matrix can be arranged so that each transmitting electrode overlaps and intersects with each receiving electrode, for example to form an array of intersections, while maintaining electrical isolation from each other. Therefore, each transmitting electrode can be capacitively coupled to each receiving electrode. For example, the transmitting electrode is capacitively coupled to the receiving electrode at the point where the transmitting electrode and the receiving electrode overlap. When the stylus approaches the electrode matrix on the touch sensor array of the touch panel, the stylus causes a reduction in mutual capacitance between only some electrodes.

[0064] If the stylus is placed close to the intersection of the transmitting electrode TX and the receiving electrode RX, the presence of the stylus will reduce the mutual capacitance between the transmitting electrode TX and the receiving electrode RX. Therefore, in addition to identifying the transmitting electrode to which the TX signal is applied when the reduced mutual capacitance is measured on one or more receiving electrodes, the position of the stylus on the touch panel can also be determined by identifying one or more receiving electrodes with reduced mutual capacitance. Specifically, the induced current signal (RX signal) is converted by the touch coordinate converter to touch coordinates indicating the position of the input on the touch sensor array. The touch coordinates are sent to the processor as an input signal.

[0065] When the stylus model is an active capacitive stylus model, all electrodes of the touch sensor array are configured to receive, and the mutual capacitance between the tip of the stylus and the receiving electrode is measured.

[0066] The location of one or more touch points can be determined by the processor (CPU) of the terminal by determining the mutual capacitance associated with each intersection of electrodes in the matrix of the touch panel.

[0067] It can be understood that when different stylus specifications are set to generate three-dimensional models of multiple different styluses and touch panels, the boundary element algorithm will be used to calculate the different mutual capacitances (coupling capacitances) between the pen electrode and the ground electrode pen ring of the stylus of different specifications and the touch graphics. Table 2 shows an example of multiple mutual capacitances (coupling capacitances) calculated based on three-dimensional models of styluses of different specifications.

[0068] Table 2

[0069] Unit(fF) RX_1 RX_2 RX_3 TX_1 TX_2 TX_3 PEN_TIPS 56.3346 53.5618 8.6177 6.99073 41.6037 43.3111 UP_RING 22.5232 18.0715 18.6295 15.6646 15.3193 19.1112

[0070] As shown in the data in Table 2, based on the data differences of these mutual capacitances, it is possible to quickly evaluate the impact of different stylus specifications and different touch patterns on the stylus coupling capacitance, evaluate the quality of the touch patterns, and evaluate the touch accuracy and quality of stylus pens of different specifications.

[0071] Implementation method 2:

[0072] The stylus pen 3D model construction device 200 of the second embodiment has the same structure as the stylus pen 3D model construction device 100 described in the first embodiment except for the specification setting unit 101 , and descriptions of other components are omitted here.

[0073] like Figure 4 As shown, the difference of the second embodiment is that the stylus pen 3D model building device 200 includes a position setting unit 201 instead of the stylus pen specification setting unit 101 .

[0074] Figure 5An example of a setting interface of the position setting unit 201 is shown.

[0075] like Figure 5 As shown, on the stylus position setting interface of the stylus model device, the position setting unit 201 sets the coordinate position (Xi, Yj) of the stylus on the touch graphic based on the operation of the input unit, and the coordinate position (Xi, Yj) is equivalent to the contact position (touch position of the stylus) of the above-mentioned capacitive touch pen model on the touch panel (or the touch graphic on the touch panel).

[0076] The label of the coordinate position (Xi, Yj) of the stylus on the touch pattern set by the stylus position setting unit 201 specifically includes:

[0077] d) Label for placing the pen tip at the center of the touch pattern: supports the setting of automatically placing the pen tip of the stylus model at the center position (Xi, Yj) on the circuit layout;

[0078] e) The pen tip is placed at a fixed coordinate position: supports setting the pen tip of the stylus model at any specific coordinate position (Xi, Yj) on the circuit layout;

[0079] f) Labels with the pen tip placed at regular multi-point positions: Supports coordinate file input, can set multiple matrix coordinate points, and supports setting the pen tip of the stylus model at multi-point coordinate positions on the touch graphics based on the coordinate file. The coordinate file can be loaded from a storage unit, or obtained from a storage device, server, etc. connected to a computer terminal via a wired or wireless communication network.

[0080] g) Labels with pen tips placed at multiple coordinate positions: supports setting multiple discontinuous specific coordinate positions of the stylus model on the touch graph.

[0081] After the position setting unit 201 completes setting of the coordinate parameters of the stylus pen, the 3D model generating unit 102 generates a 3D model based on the stylus pen position information set by the position setting unit 201 and one or more touch patterns (e.g. Figure 3 The non-stylus structure at the bottom of the figure) and the pre-set touch screen process stackup (see Table 1) are run with a 3D RC extraction analysis tool suite, such as RCExplorerFPD TM -TP RC Calculation tool, which ultimately generates a 3D model of one or more stylus pens and touch panel TPs, such as Figure 6 shown.

[0082] It can be understood that when different stylus position information is set to generate multiple different stylus 3D models, the boundary element algorithm can be used to calculate different mutual capacitances (coupling capacitances) between the stylus electrode and ground electrode ring and the touch pattern at different positions.

[0083] Similarly, based on the data differences of these mutual capacitances, it is possible to quickly evaluate the impact of different stylus positions and different touch patterns on the stylus' coupling capacitance, evaluate the quality of the touch patterns, and evaluate the touch accuracy and quality of styluses of different specifications.

[0084] Implementation method three:

[0085] The stylus pen 3D model construction device 100 of the third embodiment has the same structure as the stylus pen 3D model construction device 100 of the first embodiment except the stylus pen specification setting unit 101 , and the description thereof is omitted here.

[0086] In addition to the coordinates of the stylus, the stylus's tilt angle or direction information is key information for the stylus's application and function on the touch panel. For example, the stylus's tilt angle or direction information is used to determine the application to be opened, or it can provide a reference for a specific application to perform a specific function. Normally, the touch panel measures the stylus's tilt angle and direction, or the electrodes at different positions of the stylus measure the capacitive pen's tilt angle and direction. When the distance between the electrodes is too close, it is easy to cause deviations in the signal measurement between the electrodes, causing interference to the measurement of the capacitive pen's tilt angle and direction.

[0087] like Figure 7 As shown, the difference of the third embodiment is that the stylus pen 3D model building apparatus 100 includes a stylus pen posture setting unit 301 instead of the stylus pen specification setting unit 101 .

[0088] Figure 5 Also shown is an example of a stylus three-dimensional model generated by the stylus three-dimensional model generation unit based on the posture of the stylus set by the posture setting unit 301 .

[0089] In the present invention, the posture setting unit 301 sets the rotation angle and vertical distance of the touch pen on the touch pattern.

[0090] The posture setting unit 301 sets the parameters of the rotation angle and vertical distance of the stylus pen as follows: Figure 5 The lower part of the PenDirection setting label is shown, which simulates the three-dimensional structure of the stylus rotating at a certain angle in different directions, including:

[0091] h)Rotate X Angle label: Refer to the right-hand coordinate system, rotate with your thumb pointing to the positive direction of the X axis, and set different angles from 0 to 360 degrees;

[0092] i)Rotate Y Angle tag: Refer to the right-hand coordinate system, rotate with your thumb pointing to the positive direction of the Y axis, and set different angles from 0 to 360 degrees;

[0093] j)Rotate Z Angle label: Refer to the right-hand coordinate system, rotate with your thumb pointing to the positive direction of the Z axis, and set different angles from 0 to 360 degrees;

[0094] k) Support vertical distance setting Z Axis Distance label: simulate the three-dimensional structure of the stylus tip being raised to different heights relative to the touch graphic.

[0095] After the posture setting unit 301 completes setting of the posture parameters of the stylus pen, the 3D model generating unit 102 generates a 3D model based on the stylus pen position information set by the posture setting unit 301 and one or more touch patterns (e.g. Figure 3 The non-stylus structure at the bottom of the figure) and the pre-set touch screen process stackup (see Table 1) are run with a 3D RC extraction analysis tool suite, such as RCExplorerFPD TM -TP RC Calculation tool, which ultimately generates a 3D model of one or more stylus pens and touch panel TPs, such as Figure 8 , 9 shown.

[0096] It can be understood that when different stylus posture information is set to generate multiple different stylus 3D models, the boundary element algorithm can be used to calculate different mutual capacitances (coupling capacitances) between the stylus electrode and ground electrode ring of the stylus with different postures and the touch pattern.

[0097] Table 3 shows the different mutual capacitances (coupling capacitances) between the stylus electrode and ground electrode pen ring at different positions and the touch pattern calculated using the boundary element algorithm when different stylus and touch panel 3D models are generated based on different inclination angles or directions of the stylus.

[0098] Table 3

[0099] Unit(fF) RX_1 RX_2 RX_3 TX_1 TX_2 TX_3 PEN_TIPS 16.9422 108.352 17.0037 9.07355 70.2482 22.0913 UP_RING 25.2414 24.3583 25.331 11.2819 13.7084 34.6749

[0100] Table 4 shows the different mutual capacitances (coupling capacitances) between the pen electrode and the ground electrode pen ring of the stylus and the touch pattern in different postures calculated using the boundary element algorithm when the three-dimensional models of different styluses and touch panels are generated based on the stylus tip being lifted to different heights.

[0101] Table 4

[0102] Unit(fF) RX_1 RX_2 RX_3 TX_1 TX_2 TX_3 PEN_TIPS 17.9074 48.8097 18.0119 14.2661 38.7201 14.2394 UP_RING 19.6202 15.5943 19.7118 16.6263 13.2884 16.5941

[0103] Similarly, based on the data differences of these mutual capacitances, it is possible to quickly evaluate the impact of styluses in different postures and different touch patterns on the coupling capacitance of the stylus, evaluate the quality of the touch patterns, and the touch accuracy and quality of styluses of different specifications.

[0104] Implementation method 4:

[0105] It can be understood that the stylus 3D model construction apparatus 100 can construct different stylus 3D models based on one or more combinations of the above-mentioned stylus specification setting parameters, the position of the stylus, and the posture information of the stylus.

[0106] like Fig.10 As shown, for example, the stylus pen 3D model building device 100 includes a specification setting unit 101, a position setting unit 201, and a posture setting unit 301. The 3D model generating unit 102 generates a 3D model based on the stylus pen specification parameters set by the specification setting unit 101, the stylus pen position parameters set by the position setting unit 201, and the stylus pen posture information set by the posture setting unit 301 in combination with one or more touch graphics (e.g. Figure 3 The non-stylus structure at the bottom of the figure) and the pre-set touch screen process stackup (see Table 1) are run with a 3D RC extraction analysis tool suite, such as RCExplorerFPD TM -TP RC Calculation tool, which ultimately generates a 3D model of one or more styluses and touch panel TPs.

[0107] It can be understood that when different three-dimensional models of styluses are generated simultaneously in the above-mentioned manner, the different mutual capacitances (coupling capacitances) between the pen electrodes and ground electrode pen rings and the touch graphics of styluses of different specifications, different positions and different postures calculated using the boundary element algorithm can more accurately evaluate the influence of the comprehensive setting parameters of each stylus on the coupling capacitance of the stylus, and can more efficiently and reliably evaluate the quality of the touch graphics, the touch accuracy and quality of styluses of different specifications.

[0108] The stylus pen three-dimensional model generating device of the present invention can be implemented using a 3D computer-aided design system (EDA). Fig.11 The flowchart of the present invention for creating a three-dimensional model of a stylus pen using a 3D computer-aided design system is shown.

[0109] like Fig.11 As shown, first, at least one of the specification parameters, position parameters and posture parameters of the stylus is set through the input device, that is, step S101.

[0110] The specification parameters of the stylus pen include: the hemispherical radius of the pen tip; the parameters of the pen tip insulator; the hemispherical radius of the bottom of the pen core; the top diameter, bottom diameter and height of the pen core; the thickness, length and diameter of the upper and lower pen rings of the pen ring. The position parameters of the stylus pen include: the center position (Xi, Yj) of the pen tip on the touch pattern, any specific coordinate position (Xi, Yj), multi-point coordinate positions and multiple discontinuous specific coordinate positions.

[0111] The posture parameters of the stylus pen include: the rotation angles of the stylus pen in different directions, and the different heights at which the tip of the stylus pen is lifted relative to the touch pattern.

[0112] The setting labels of each parameter are displayed on the design interface of the 3D computer-aided design system.

[0113] In one implementation, the present invention sets an identification ID for each generated three-dimensional model of the stylus pen, uses the identification ID of each three-dimensional model of the stylus pen as a file name to associate at least one of the structural parameter data file, position data file, and posture data file of each stylus pen, and stores it in the storage unit 103.

[0114] Step S102: The 3D model generating unit 102 generates a touch screen based on at least one of the specification parameters, position parameters, and posture parameters of the stylus pen and one or more touch patterns (e.g. Figure 3 The non-stylus structure at the bottom of the figure) and the pre-set touch screen process stackup (see Table 1) are run with a 3D RC extraction analysis tool suite, such as RCExplorerFPD TM -TP RC Calculation tool, which ultimately generates a 3D model of one or more styluses and touch panel TPs.

[0115] In one implementation, the stylus three-dimensional model generation unit 102 selects any one or a combination of the specification parameters, position parameters and posture parameters of the stylus from the storage unit 103, such as a combination of the specification parameters and position parameters of the stylus, a combination of the specification parameters and posture parameters of the stylus, a combination of the position parameters and posture parameters of the stylus, and a combination of the specification parameters, position parameters and posture parameters of the stylus, and loads the combination of the stylus parameters selected from the storage unit 103 into and uses it in a 3D computer-aided design system.

[0116] In one implementation, the 3D computer-aided design system obtains setting parameter data or files of various stylus pens from an external storage medium (hard disk, USB flash drive, CD-ROM, etc.) or communicates with a Fargo server or a cloud server via the Internet or a wireless network.

[0117] Step S103: outputting the generated three-dimensional model of the one or more stylus pens and the touch panel TP. The generated three-dimensional model of the one or more stylus pens and the touch panel TP is displayed on a display device for the user to view or call, for example.

[0118] Optionally, the present invention further includes a stylus three-dimensional model testing step S104.

[0119] In step S104, the above steps S101-S102 are repeatedly executed to construct multiple stylus 3D models. For each stylus 3D model, if it is determined that the required multiple stylus 3D models have been constructed, different touch patterns are touched by using different stylus models generated in the above step 103. RCExplorerFPD-TP RC Calculation uses the boundary element algorithm to perform capacitance extraction calculation. Styluses of different specifications, positions and postures will calculate different coupling capacitances between the pen electrode and the ground electrode pen ring and the TP touch pattern. Based on these data sizes, the coupling capacitance influence of different touch patterns and styluses of different specifications, positions and postures is tested.

[0120] The stylus three-dimensional model construction method described in the present invention is simple. Combining the setting parameters of styluses of different specifications, positions, postures, etc., the advantages and disadvantages of the stylus and touch graphic design can be evaluated more quickly, and the influence of styluses of different specifications, positions and postures on the touch graphics can be evaluated at the same time, thereby quickly optimizing the design of the TP graphics or stylus structure.

[0121] Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, that is, some embodiments can be implemented as a computer program product that can include instructions stored on a computer-readable medium. These instructions can be used to program a general-purpose or special-purpose processor to perform the described operations.

[0122] That is, an embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0123] Computer-readable media include any mechanism for storing or transmitting information in a form (e.g., software, processing application) readable by a machine (e.g., a computer). Computer-readable storage media may include, but are not limited to, magnetic storage media (e.g., floppy disks), optical storage media (e.g., CD-ROMs), magneto-optical storage media, read-only memory (ROM), random access memory (RAM); erasable programmable memory (e.g., EPROM and EEPROM), flash memory, or another type of medium suitable for storing electronic instructions.

[0124] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0125] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A device for automatically constructing a three-dimensional model using a stylus pen, comprising: a specification setting unit for setting information related to the specifications of the stylus pen, wherein the specifications include radius, height, and material characteristic parameters related to the tip, core, and ring of the stylus pen; and A three-dimensional model generating unit generates a three-dimensional model of one or more stylus pens and a touch panel based on one or more sets of acquired stylus specification setting parameters combined with one or more touch patterns of the touch panel and the process stacking of the touch panel, The device for automatically constructing a three-dimensional model with a stylus pen further includes a position setting unit, which sets the coordinate position of the stylus pen on the touch graphic based on the operation of the input unit. The three-dimensional model generating unit further generates a three-dimensional model of one or more stylus pens and the touch panel based on the acquired coordinate positions of one or more groups of stylus pens on the touch pattern in combination with one or more touch patterns of the touch panel and the process stacking of the touch panel. Wherein, a boundary element algorithm is used to perform capacitance extraction calculation on the touch operation of the three-dimensional model of the stylus pen on the touch pattern.

2. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 1, characterized in that: The device further includes a storage unit, wherein the storage unit stores one or more stylus pen specification setting files, wherein the stylus pen specification setting files include specification data of the stylus pen and material property data of the stylus pen.

3. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 1, characterized in that: The device also includes an output unit, wherein the output unit displays a visualized image of a three-dimensional model of one or more styluses and a touch panel.

4. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 1, characterized in that: The stylus pen is an active capacitive stylus pen.

5. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 1, characterized in that: The coordinate position of the stylus pen includes a center position where the tip of the stylus pen is placed on the touch pattern, a multi-point coordinate position, and a plurality of discontinuous specific coordinate positions.

6. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 1, characterized in that: The apparatus further includes a posture setting unit, which sets posture parameters of the touch pen on the touch graphic based on the operation of the input unit. The three-dimensional model generation unit also generates a three-dimensional model of one or more styluses and a touch panel based on one or more sets of acquired posture parameters of the stylus on the touch pattern combined with one or more touch patterns of the touch panel and the process stack of the touch panel.

7. The device for automatically constructing a three-dimensional model using a stylus pen according to claim 6, wherein: The gesture parameter of the stylus pen includes a tilt angle or a direction of the stylus pen.

8. A method for automatically constructing a three-dimensional model of a stylus pen, characterized in that: The following steps are involved: Setting at least one of specification parameters, position parameters, and posture parameters of the stylus; Based on at least one of the specification parameters, position parameters and posture parameters of the set stylus, combined with one or more touch patterns of the touch panel and the process stacking of the touch panel, a three-dimensional model of one or more styluses and the touch panel is generated; as well as Output the generated three-dimensional model of one or more styluses and touch panels through a visual interface The method for automatically constructing a three-dimensional model of the stylus pen further includes: Setting the coordinate position of the touch pen on the touch graphic based on the operation of the input unit, and Based on the acquired coordinate positions of one or more groups of stylus pens on the touch pattern, combined with one or more touch patterns of the touch panel and the process stack of the touch panel, a three-dimensional model of one or more stylus pens and the touch panel is generated. Wherein, a boundary element algorithm is used to perform capacitance extraction calculation on the touch operation of the three-dimensional model of the stylus pen on the touch pattern.

9. The method for automatically constructing a stylus three-dimensional model according to claim 8, characterized in that: The coordinate position of the stylus pen includes a center position where the tip of the stylus pen is placed on the touch pattern, a multi-point coordinate position, and a plurality of discontinuous specific coordinate positions.

10. The method for automatically constructing a stylus three-dimensional model according to claim 8, characterized in that: The gesture parameter of the stylus pen includes a tilt angle or a direction of the stylus pen.

11. A computer-readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the method for automatically constructing a three-dimensional model of a stylus pen are implemented as described in any one of claims 8 to 10.

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