Haptic display apparatus, handheld apparatus, and haptic reproduction device

Abstract

Disclosed in the present application are a haptic display apparatus, a handheld apparatus and a haptic reproduction device. The haptic display apparatus comprises a position detection assembly, a texture output assembly, a first electromagnetic assembly and a first control assembly; the position detection assembly comprises a plurality of position areas; the first electromagnetic assembly comprises a plurality of electromagnetic parts, each position area being at least correspondingly provided with an electromagnetic part; the first control assembly is electrically and separately connected to the position detection assembly, the texture output assembly and the first electromagnetic assembly. The handheld apparatus is used for being matched with the haptic display apparatus for use. The haptic reproduction device comprises the haptic display apparatus and the handheld apparatus.

Description

Tactile display device, handheld device, and tactile reproduction apparatus

[0001] This application claims priority to Chinese patent application No. 202311545496.6, filed on November 17, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of multi-sensory communication technology, and in particular to a tactile display device, a handheld device, and a tactile reproduction device. Background Art

[0003] With the development of 6G technologies such as immersive cloud XR, holographic communications, sensory interconnection, intelligent interaction, and communication perception, existing application requirements have gradually changed. For example, with the rapid development of e-commerce, online shopping has become a widely relied-on transaction activity worldwide, allowing users to select products without leaving their homes. However, with traditional online shopping methods, users can often only see the appearance of the products but cannot feel their tactile properties. Tactile reproduction technology is expected to enable users to perceive tactile information such as the shape, texture, and softness of online products without leaving their homes, enhancing the human-computer interaction experience. However, existing tactile reproduction devices, such as tactile reproduction panels, often only provide tactile display functions, which are relatively simple in function. They cannot interact with other touch devices to achieve force rendering and texture presentation, resulting in poor tactile reproduction and insufficient realism. Technical issues

[0004] The main purpose of this application is to propose a tactile display device, which aims to utilize the principle of electromagnetic field interaction composed of multiple electromagnetic parts to enable the tactile display device to be used in conjunction with a handheld device to achieve force rendering and texture presentation in tactile display interaction, thereby improving the tactile reproduction effect and realism. Technical Solutions

[0005] To achieve the above-mentioned objectives, the present application proposes a tactile display device for use in conjunction with an external handheld device, wherein the handheld device includes a second electromagnetic component, and the tactile display device includes:

[0006] a position detection component, comprising a plurality of position areas, wherein the position areas are configured to generate and output corresponding position detection signals when in contact with the handheld device;

[0007] A texture output component, configured to generate and output a texture signal when the position detection component is triggered;

[0008] a first electromagnetic assembly, comprising a plurality of electromagnetic parts, at least one of which is provided for each position area, and configured to generate an electromagnetic field that changes accordingly when a current passes therethrough to adjust the contact force between the position detection assembly and the handheld device;

[0009] a first control component, the first control component being electrically connected to the position detection component, the texture output component, and the first electromagnetic component respectively;

[0010] The first control component is used to generate a first control signal and a second control signal based on the position detection signal and the texture signal, and output the first control signal to the electromagnetic part corresponding to the contact position, so that the current passing through the electromagnetic part changes and generates a corresponding electromagnetic field to adjust the contact force between the position detection component and the handheld device; and output the second control signal to the second electromagnetic component, so that the second electromagnetic component and the first electromagnetic component generate electromagnetic induction and generate force coupling at the contact position.

[0011] In one embodiment, the position detection component, the first control component, the texture output component, and the first electromagnetic component are stacked in sequence along a thickness direction of the tactile display device.

[0012] In one embodiment, the electromagnetic part includes a plurality of first electromagnetic coils, and the plurality of first electromagnetic coils are distributed in a matrix on the texture output component.

[0013] In one embodiment, the plurality of first electromagnetic coils are distributed in a matrix along the length direction of the texture output component;

[0014] And / or, the first electromagnetic coil includes a first main coil and a first sub-coil, the diameter of the first main coil is larger than the diameter of the first sub-coil, and the first main coil is nested on the outer circumference of the first sub-coil.

[0015] In addition, to achieve the above-mentioned purpose, the present application also proposes a handheld device for use in conjunction with the above-mentioned tactile display device, the handheld device comprising:

[0016] case;

[0017] a second control assembly disposed in the housing;

[0018] a second electromagnetic component, disposed in the housing and electrically connected to the second control component;

[0019] The second electromagnetic component is used to receive a second control signal output by the tactile display device when the shell contacts the tactile display device, and generate electromagnetic induction with the first electromagnetic component of the tactile display device according to the second control signal and generate force coupling at the contact position.

[0020] In one embodiment, the handheld device further comprises:

[0021] The vibration component includes a third electromagnetic component and a vibrating iron block, both of which are arranged in the shell. The third electromagnetic component is electrically connected to the second control component and is used to drive the vibrating iron block to move from a starting position to a target position at a first speed when receiving a driving control signal output by the second control component, and when the current drops, the vibrating iron block returns to the starting position from the target position at a second speed by vibration, wherein the first speed is greater than the second speed.

[0022] In one embodiment, the third electromagnetic component includes:

[0023] a first magnet and a second magnet, the housing having a first end and a second end oppositely disposed along its length, the first magnet being disposed within the first end, the second magnet being disposed within the second end, the vibrating iron block being located between the first magnet and the second magnet, one end of the vibrating iron block being connected to the first magnet via a first elastic member, and the other end of the vibrating iron block being connected to the second magnet via a second elastic member;

[0024] The second electromagnetic coil is arranged on the inner peripheral wall of the shell and is arranged around the vibration iron block. The vibration iron block is arranged at the center of the second electromagnetic coil.

[0025] In one embodiment, the shell is a flexible shell, and the handheld device further includes a connecting member, which is disposed in the shell, one end of the connecting member is connected to the inner wall of the shell, and the other end of the connecting member is connected to the second electromagnetic component.

[0026] In one embodiment, a refrigeration element is provided on the inner peripheral wall of the shell, and the refrigeration element is used to absorb or release heat of the shell to adjust the temperature of the shell.

[0027] In addition, to achieve the above-mentioned purpose, the present application also proposes a tactile reproduction device, which includes the tactile display device as described above; and the handheld device as described above. Beneficial effects

[0028] The technical solution of this application proposes a tactile display device, a handheld device, and a tactile reproduction device. The tactile display device includes a position detection component, a texture output component, a first electromagnetic component, and a first control component. The position detection component includes multiple position areas. The first electromagnetic component includes multiple electromagnetic parts. Each position area is provided with at least one electromagnetic part. The first control component is electrically connected to the position detection component, the texture output component, and the first electromagnetic component. The handheld device is used in conjunction with the tactile display device. The tactile reproduction device includes a tactile display device and a handheld device. The technical solution of this application utilizes the principle of electromagnetic field interaction formed by multiple electromagnetic parts to enable the tactile display device and the handheld device to achieve force rendering and texture presentation in tactile display interaction when used in conjunction, thereby improving the tactile reproduction effect and realism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] FIG1 is a schematic structural diagram of an embodiment of a tactile display device of the present application;

[0031] FIG2 is a schematic diagram of a circuit functional module of an embodiment of a tactile display device of the present application;

[0032] FIG3 is a schematic diagram of a circuit functional module of an embodiment of a handheld device of the present application;

[0033] FIG4 is a schematic structural diagram of an embodiment of a handheld device of the present application;

[0034] FIG5 is a schematic structural diagram of an embodiment of a tactile reproduction device of the present application.

[0035] Description of Figure Numbers:

[0036] Reference numerals: Reference numerals: 10 tactile display device 220 second electromagnetic assembly 100 position detection assembly 230 vibration assembly 110 texture output assembly 231 third electromagnetic assembly 120 first electromagnetic assembly 2311 first magnet 121 electromagnetic portion 2312 second magnet 130 first control assembly 2313 first elastic member 20 handheld device 2314 second elastic member 200 housing 2315 second electromagnetic coil 210 second control assembly 232 vibrating iron block

[0037] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] The present application proposes a tactile display device 10 .

[0042] 1 to 5 , in one embodiment of the present application, the tactile display device 10 is used in conjunction with an external handheld device 20 , wherein the handheld device 20 includes a second electromagnetic component 220 . The tactile display device 10 includes:

[0043] The position detection component 100 includes a plurality of position areas, wherein the position areas are used to generate and output corresponding position detection signals when in contact with the handheld device 20;

[0044] The texture output component 110 is used to generate and output a texture signal when the position detection component 100 is triggered;

[0045] A first electromagnetic assembly 120 includes a plurality of electromagnetic parts 121, with at least one electromagnetic part 121 corresponding to each position area. The electromagnetic part 121 is configured to generate an electromagnetic field that changes accordingly when the current flowing therethrough changes, thereby adjusting the contact force between the position detection assembly 100 and the handheld device 20;

[0046] a first control component 130 , the first control component 130 being electrically connected to the position detection component 100 , the texture output component 110 , and the first electromagnetic component 120 ;

[0047] The first control component 130 is used to generate a first control signal and a second control signal based on the position detection signal and the texture signal, and output the first control signal to the first electromagnetic component 120 so that the current passing through each electromagnetic part 121 changes and generates a correspondingly changing electromagnetic field to adjust the contact force between the position detection component 100 and the handheld device 20; and output the second control signal to the second electromagnetic component 220 so that the second electromagnetic component 220 generates electromagnetic induction with the first electromagnetic component 120 and generates force coupling at the contact position.

[0048] It is understandable that the tactile display device 10 is implemented using a tactile display panel. The tactile display panel may include, but is not limited to, a position detection component 100, a texture output component 110, a first electromagnetic component 120, and a first control component 130, and may also include a first wireless communication component, etc. The first wireless communication component may be implemented using a WiFi component, a Bluetooth component, or a 3G / 4G / 5G component. The first wireless communication component is used to establish a wireless communication connection with a second wireless communication component of an external handheld device 20, so that the tactile display device 10 can interact and communicate with the external handheld device 20 to achieve coordinated use of the two. In one embodiment, the external handheld device 20 can be implemented using a tactile pen or a touch finger sleeve, and the source and model of the tactile pen or the touch finger sleeve are not limited here.

[0049] This embodiment takes the tactile display device 10 including the position detection component 100 , the texture output component 110 , the first electromagnetic component 120 and the first control component 130 as an example to specifically explain the tactile display device 10 .

[0050] In one embodiment, the position detection component 100 is implemented using a touch screen. Touch screens are classified into resistive touch screens and capacitive touch screens. The touch screen of this embodiment employs a capacitive touch screen. Capacitive touch screens offer advantages such as multi-touch functionality, high sensitivity, low risk of accidental touches, high durability, and a long lifespan. This allows the tactile display device 10 to implement touch detection, while also improving the detection accuracy and lifespan of the tactile display device 10.

[0051] In this embodiment, the capacitive touch screen includes a capacitive touch panel and a contact sensor provided on the capacitive touch panel. The capacitive touch panel includes a plurality of position areas, each of which is a capacitance area. The plurality of capacitance areas are arranged in an array along the length direction of the capacitive touch panel. The controlled end of the contact sensor is connected to the control end of the first control component 130, and the first signal output end of the contact sensor is connected to the first signal input end of the first control component 130. When the capacitive touch panel contacts the external handheld device 20, the handheld device 20 squeezes the capacitive touch panel at the contact position and triggers the contact sensor in the capacitive touch panel to detect the current contact position. After the contact sensor generates a corresponding position detection signal, it is output to the first signal input end of the first control component 130 through the first signal output end, so that the first control component 130 calls the relevant algorithm program based on the received signal to calculate the specific coordinate value of the contact position.

[0052] In this embodiment, the texture output component 110 is implemented using a liquid crystal display panel, which can be an LED liquid crystal display panel or an LCD liquid crystal display panel. In this embodiment, the texture output component 110 is an LED liquid crystal display panel, and the source and model of the LED liquid crystal display panel are not limited here. The LED liquid crystal display panel and the position detection component 100 are arranged relative to each other along the thickness direction of the tactile display device 10. The LED liquid crystal display panel has a display area, which is arranged toward the touch area of ​​the position detection component 100. The controlled end of the LED liquid crystal display panel is connected to the control end of the first control component 130, and the second signal output end of the LED liquid crystal display panel is connected to the second signal input end of the first control component 130. When the position detection component 100 contacts the external handheld device 20, that is, when one or more of the multiple position areas are contacted by the handheld device 20, the first control component 130 receives the position detection signal output by the position detection component 100, and outputs a display control signal to the LED liquid crystal display panel based on the position detection signal, controls the LED liquid crystal display panel to generate a texture signal corresponding to the contact position, and outputs it to the second signal input terminal of the first control component 130 through the second signal output terminal.

[0053] In this embodiment, the first electromagnetic assembly 120 includes multiple electromagnetic sections 121. The multiple electromagnetic sections 121 are arranged in parallel, with the controlled ends of the multiple electromagnetic sections 121 respectively connected to the controlled ends of the first control assembly 130, and the signal input ends of the multiple electromagnetic sections 121 are respectively connected one-to-one with the multiple signal output ends of the first control assembly 130. When the texture output assembly 110 and the position detection assembly 100 are arranged opposite each other along the thickness direction of the tactile display device 10, the multiple electromagnetic sections 121 are located on the side of the texture output assembly 110 facing away from the position detection assembly 100, and at least one electromagnetic section 121 is provided for each position region of the position detection assembly 100. With this arrangement, the position detection assembly 100, texture output assembly 110, and first electromagnetic assembly 120 of this embodiment are stacked sequentially along the thickness direction of the tactile display device 10, making the overall structure of the tactile display device 10 more compact, reducing the overall volume of the tactile display device 10, and making it more convenient to carry and use. When the tactile display device 10 further includes the first control component 130 , in order to further reduce the volume of the tactile display device 10 , the position detection component 100 , the first control component 130 , the texture output component 110 and the first electromagnetic component 120 are stacked in sequence along the thickness direction of the tactile display device 10 .

[0054] In one embodiment, the first control component 130 may include, but is not limited to, a first control unit and a first processing unit, and may further include a first storage unit, etc. This embodiment specifically explains the first control component 130 by taking the example of the first control component 130 including the first control unit and the first processing unit electrically connected to the first control unit.

[0055] In one embodiment, the first control unit can be implemented using a control chip, such as an MCU, a DSP (Digital Signal Processor), or an FPGA (Field Programmable Gate Array). The first control component 130 in this embodiment is an MCU, a chip that integrates functional modules such as a microprocessor, memory, and input / output interfaces, and is capable of independently completing various control tasks. However, MCUs generally focus on control instruction operations and have relatively weak algorithmic capabilities. In this embodiment, they are primarily used in small, less complex control applications such as embedded control and electronic control. For example, they control the position detection component 100 to detect a touch position, receive a position detection signal output by the position detection component 100, and forward it to the first processing unit. Furthermore, they control the texture output component 110 to generate a texture signal corresponding to the touch position when the position detection component 100 is triggered, and receive the texture signal and forward it to the first processing unit.

[0056] In one embodiment, the first processing unit can be implemented using a processor chip, such as a CPU, SOC (System-on-a-Chip), etc. In this embodiment, the first processing unit is a CPU, which is also called a microprocessor chip, and includes a controller, an arithmetic unit, and a register group. The CPU, or central processing unit, is a very large-scale integrated circuit and is the computing core and control core of the tactile display device 10 of this embodiment. The CPU is mainly used for intelligent computing and has stronger algorithmic capabilities. In this embodiment, it is mainly used to calculate and process the signal output by the first control unit, such as calculating the specific coordinate value of the touch position based on the position detection signal output by the position detection component 100, or calculating the texture information of the touch position based on the texture signal output by the texture output component 110, where the texture information may include but is not limited to waves, fabrics, sandpaper, etc.

[0057] In actual application, when the tactile display device 10 is powered on, current flows through each electromagnetic portion 121 of the first electromagnetic assembly 120, forming an electromagnetic field of corresponding magnitude and direction. When the position detection assembly 100 contacts the external handheld device 20, the first control assembly 130 generates a first control signal based on the position detection signal output by the position detection assembly 100 and the texture signal output by the texture output assembly 110, and outputs the signal to the electromagnetic portion 121 of the first electromagnetic assembly 120 corresponding to the contact position. It is worth noting that the first control signal is a PWM control signal with adjustable amplitude and frequency. By adjusting the duty cycle of the PWM control signal, the current in the electromagnetic portion 121 corresponding to the contact position is adjusted, so that the electromagnetic portion 121 generates a correspondingly changing electromagnetic field, thereby adjusting the contact force between the position detection assembly 100 and the handheld device 20, thereby achieving tactile feedback at the contact position, that is, achieving force rendering in tactile display interaction. In addition, the first control component 130 also generates a second control signal based on the position detection signal output by the position detection component 100 and the texture signal output by the texture output component 110, and outputs it to the second electromagnetic component 220 of the handheld device 20, so that the second electromagnetic component 220 generates electromagnetic induction with the electromagnetic part 121 at the touch position and generates force coupling at the contact position, thereby realizing the presentation of texture in the tactile display at the contact position.

[0058] The technical solution of the present application proposes a tactile display device 10, a handheld device 20, and a tactile reproduction device. The tactile display device 10 includes a position detection component 100, a texture output component 110, a first electromagnetic component 120, and a first control component 130. The position detection component 100 includes multiple position areas, the first electromagnetic component 120 includes multiple electromagnetic parts 121, and each position area is provided with at least one electromagnetic part 121. The first control component 130 is electrically connected to the position detection component 100, the texture output component 110, and the first electromagnetic component 120 respectively; the handheld device 20 is used in conjunction with the tactile display device 10; and the tactile reproduction device includes the tactile display device 10 and the handheld device 20. The technical solution of the present application utilizes the principle of electromagnetic field interaction formed by multiple electromagnetic parts 121 to enable the tactile display device 10 and the handheld device 20 to achieve force rendering and texture presentation in tactile display interaction when used in conjunction with each other, thereby improving the tactile reproduction effect and realism.

[0059] 1 to 5 , in one embodiment of the present application, the electromagnetic portion 121 includes a plurality of first electromagnetic coils, and the plurality of first electromagnetic coils are distributed in a matrix on the texture output component 110 .

[0060] Specifically, in this embodiment, each electromagnetic portion 121 of the first electromagnetic assembly 120 is composed of a plurality of first electromagnetic coils, and the number of the first electromagnetic coils is generally not limited here and is specifically set according to the tactile display requirements of the tactile display device 10. When at least one electromagnetic portion 121 is provided corresponding to each position area of ​​the position detection assembly 100, the plurality of first electromagnetic coils are distributed in a dot matrix on the side of the texture output assembly 110 facing away from the position detection assembly 100. For example, the plurality of first electromagnetic coils can be distributed in an irregular dot matrix on the side of the texture output assembly 110 facing away from the position detection assembly 100, or can be distributed in a regular dot matrix along the length direction of the texture output assembly 110 on the side of the texture output assembly 110 facing away from the position detection assembly 100, such as a matrix distribution or a circular distribution.

[0061] In one embodiment, in order to make the layout of the tactile display device 10 more reasonable, the plurality of electromagnetic coils are distributed in a matrix along the length direction of the texture output component 110 .

[0062] In one embodiment, each first electromagnetic coil includes a first main coil and a first sub-coil. The diameter of the first main coil is larger than the diameter of the first sub-coil. The first main coil is installed on the outer periphery of the first sub-coil in a nested manner. At this time, the first main coil and the first sub-coil are detachably connected, which can improve the assembly efficiency of the first electromagnetic component 120 during the production process, thereby improving the assembly efficiency of the tactile display device 10.

[0063] The present application also proposes a handheld device 20 for use in conjunction with the tactile display device 10 as described above. The specific structure of the tactile display device 10 refers to the above embodiment. Since the handheld device 20 adopts all the technical solutions of all the above embodiments, it has at least all the effects brought about by the technical solutions of the above embodiments, which will not be described one by one here.

[0064] 1 to 5 , in one embodiment of the present application, the handheld device 20 includes:

[0065] Housing 200;

[0066] A second control assembly 210 is disposed in the housing 200;

[0067] A second electromagnetic component 220 is disposed in the housing 200 and electrically connected to the second control component 210;

[0068] The second electromagnetic component 220 is used to receive a second control signal output by the tactile display device 10 when the shell 200 contacts the tactile display device 10, and generate electromagnetic induction with the first electromagnetic component 120 of the tactile display device 10 according to the second control signal and generate force coupling at the contact position.

[0069] The handheld device 20 is implemented using a stylus pen or a touch finger sleeve. Regardless of whether the handheld device 20 is a stylus pen or a touch finger sleeve, it may include, but is not limited to, a housing 200, a second control component 210, and a second electromagnetic component 220. It may also include a second wireless communication component. The second wireless communication component may be implemented using a WiFi component, a Bluetooth component, or a 3G / 4G / 5G component. The second wireless communication component is used to establish a wireless communication connection with the first wireless communication component of the tactile display device 10, allowing the handheld device 20 to communicate with the tactile display device 10 and achieve coordinated use of the two.

[0070] This embodiment uses the example of a handheld device 20 including a housing 200, a second control assembly 210, and a second electromagnetic assembly 220 to provide a detailed explanation of the handheld device 20. In one embodiment, the housing 200 is used to house the second control assembly 210 and the second electromagnetic assembly 220. The housing 200 can be square, circular, or irregular in shape, depending on the handheld device 20's gripping requirements. For example, if the handheld device 20 is a stylus pen, the housing 200 can have a cylindrical pen body and a conical pen tip. If the handheld device 20 is a touch fingertip, the housing 200 can be in the shape of a fingertip to meet the user's wearing requirements.

[0071] In one embodiment, the second control component 210 can be implemented using a control chip, such as an MCU, a DSP (Digital Signal Processor), or an FPGA (Field Programmable Gate Array). The second control component 210 and the second electromagnetic component 220 are both disposed within the housing 200. The controlled terminal of the second electromagnetic component 220 is connected to the control terminal of the second control component 210, and the signal input terminal of the second electromagnetic component 220 is connected to the signal output terminal of the second control component 210. When the tactile display device 10 contacts the handheld device 20, that is, when the position detection component 100 contacts the housing 200, the first control component 130 of the tactile display device 10 generates a first control signal based on the position detection signal output by the position detection component 100 and the texture signal output by the texture output component 110, and outputs the first control signal to the electromagnetic portion 121 of the first electromagnetic component 120 corresponding to the touch position, so that the electromagnetic portion 121 generates a correspondingly changing electromagnetic field, adjusts the contact force between the position detection component 100 and the housing 200, thereby achieving tactile feedback at the contact position, that is, achieving force rendering in tactile display interaction. At the same time, the first control component 130 also generates a second control signal and outputs it to the second control component 210 of the handheld device 20, so that the second control component 210 generates electromagnetic induction with the first electromagnetic component 120 according to the second control signal and generates force coupling at the contact position, thereby achieving texture rendering in the tactile display at the contact position.

[0072] 1 to 5 , in one embodiment of the present application, the handheld device 20 further includes:

[0073] The vibration component 230 includes a third electromagnetic component 231 and a vibration iron block 232, both of which are arranged in the shell 200. The third electromagnetic component 231 is electrically connected to the second control component 210, and is used to drive the vibration iron block 232 to move from the starting position to the target position at a first speed when receiving the driving control signal output by the second control component 210, and when the current drops, the vibration iron block 232 returns to the starting position from the target position at a second speed by vibration, wherein the first speed is greater than the second speed.

[0074] In this embodiment, the vibration assembly 230 includes a third electromagnetic assembly 231 and a vibrating iron block 232. Both the third electromagnetic assembly 231 and the vibrating iron block 232 are disposed within the housing 200. The controlled terminal of the third electromagnetic assembly 231 is connected to the control terminal of the second control assembly 210, and the signal input terminal of the third electromagnetic assembly 231 is connected to the signal output terminal of the second control assembly 210. The third electromagnetic assembly 231 is in driving connection with the vibrating iron block 232. When the handheld device 20 comes into contact with the tactile display device 10, that is, when the housing 200 comes into contact with the position detection assembly 100, the second control assembly 210 transmits a drive control signal via its signal output terminal to the signal input terminal of the third electromagnetic assembly 231. This causes the third electromagnetic assembly 231 to drive the vibrating iron block 232 to move from a starting position to a target position at a first speed based on the received signal. When the current of the drive control signal gradually decreases, the vibrating iron block 232 vibrates back from the target position to the starting position at a second speed. During this process, the shell 200 produces asymmetric stretching on the user's finger skin, creating a pulling sensation from the starting position toward the target position, and presenting asymmetric texture vibration feedback.

[0075] By adjusting the period of the drive control signal through the second control component 210, different tactile vibrations can be produced. When the period of the drive control signal is short, the asymmetric force of the vibration output is not obvious, and a delicate texture vibration feedback is presented. When the period of the drive control signal is long, the user's finger feels a noticeable pulling in the direction from the starting position to the target position, presenting an asymmetric texture vibration feedback.

[0076] In one embodiment, the third electromagnetic assembly 231 includes a first magnet 2311, a second magnet 2312, and a second electromagnetic coil 2315. The housing 200 has a first end and a second end disposed opposite each other along its length, the first electromagnetic being disposed within the first end, and the second magnet 2312 being disposed within the second end. The vibrating iron block 232 is located between the first magnet 2311 and the second magnet 2312. One end of the vibrating iron block 232 is connected to the first magnet 2311 via a first elastic member 2313, and the other end of the vibrating iron block 232 is connected to the second magnet 2312 via a second elastic member 2314. The second electromagnetic coil 2315 is disposed on the inner circumferential wall of the housing 200 and is arranged around the vibrating iron block 232. In this case, the vibrating iron block 232 is disposed at the center of the second electromagnetic coil 2315 to serve as the electromagnetic core. When the second electromagnetic coil 2315 receives the driving control signal output by the second control component 210, the current passing through the second electromagnetic coil 2315 changes, so that the second electromagnetic coil 2315 generates a corresponding changing electromagnetic field, driving the vibrating iron block 232 to move from the starting position to the target position at a first speed, and when the current of the driving control signal gradually drops, the vibrating iron block 232 returns to the starting position from the target position at a second speed through vibration, so that the shell 200 produces an asymmetric stretch on the user's finger skin, generating a pulling sensation from the starting position toward the target position, and presenting asymmetric texture vibration feedback.

[0077] 1 to 5 , in one embodiment of the present application, the shell 200 is a flexible shell 200 , and the handheld device 20 further includes a connector disposed within the shell 200 , one end of the connector being connected to the inner circumferential wall of the shell 200 , and the other end of the connector being connected to the second electromagnetic assembly 220 .

[0078] The handheld device 20 can be a stylus pen or a touch finger sleeve. When the handheld device 20 is a stylus pen, the shell 200 is a rigid shell 200, that is, the shell 200 is made of metal or plastic. The rigid shell 200 can be directly sleeved on the outer periphery of the second electromagnetic component 220, which is also made of a rigid material, to achieve a connection and fixation between the two. When the handheld device 20 is a touch finger sleeve, in order to improve the user's wearing comfort, the shell 200 is a flexible shell 200, that is, the shell 200 is made of a deformable material. If the flexible shell 200 is directly sleeved on the outer periphery of the second electromagnetic component 220, the flexible shell 200 and the second electromagnetic component 220 may fall off due to the lack of a rigid connection. Therefore, in this embodiment, in order to improve the installation stability between the flexible shell 200 and the second electromagnetic component 220, the handheld device 20 also includes a connector. The connecting piece is realized by a snap-fit ​​piece, which is arranged in the flexible shell 200. One end of the snap-fit ​​piece is connected to the inner wall of the flexible shell 200, and the other end of the snap-fit ​​piece is connected to the second electromagnetic component 220, thereby strengthening the connection between the flexible shell 200 and the second electromagnetic component 220 and improving the installation stability of the two.

[0079] 1 to 5 , in one embodiment of the present application, a refrigeration element is provided on the inner peripheral wall of the housing 200 , and the refrigeration element is used to absorb or release heat of the housing 200 to adjust the temperature of the housing 200 .

[0080] In this embodiment, the cooling element is implemented using a semiconductor refrigeration chip, also known as a thermoelectric refrigeration chip, which is a type of heat pump. The principle of a semiconductor refrigeration chip is the Peltier effect of semiconductor materials. When direct current passes through a galvanic couple formed by two different semiconductor materials connected in series, heat is absorbed and released at both ends of the galvanic couple, respectively, causing the housing 200 to heat or cool, thereby generating different tactile temperatures on the housing 200. When the handheld device 20 of this embodiment is used in conjunction with the tactile display device 10, if the texture output component 110 of the tactile display device 10 displays ice, the housing 200 contacts the position detection component 100 to generate a lower tactile temperature, which is transmitted to the user's hand, causing the user's hand to feel cold. If the texture output component 110 displays a hand warmer, the housing 200 contacts the position detection component 100 to generate a higher tactile temperature, which is transmitted to the user's hand, causing the user's hand to feel warm.

[0081] The present application also proposes a tactile reproduction device, which includes a tactile display device 10 and a handheld device 20. The specific structures of the tactile display device 10 and the handheld device 20 refer to the above embodiments. Since the tactile reproduction device adopts all the technical solutions of all the above embodiments, it has at least all the effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0082] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A tactile display device, wherein: The tactile display device is used in conjunction with an external handheld device, wherein the handheld device comprises a second electromagnetic component, and the tactile display device comprises: A position detection component, comprising a plurality of position areas, wherein the position areas are used to generate and output corresponding position detection signals when in contact with the handheld device; A texture output component, used to generate and output a texture signal when the position detection component is triggered; A first electromagnetic component, comprising a plurality of electromagnetic parts, each of the position areas being provided with at least one electromagnetic part, the electromagnetic part being used to generate an electromagnetic field that changes accordingly when the current passing therethrough changes so as to adjust the contact force between the position detection component and the handheld device; a first control component, the first control component being electrically connected to the position detection component, the texture output component and the first electromagnetic component respectively; The first control component is used to generate a first control signal and a second control signal according to the position detection signal and the texture signal, and output the first control signal to the electromagnetic part corresponding to the contact position, so that the current passing through the electromagnetic part changes and generates a correspondingly changing electromagnetic field to adjust the contact force between the position detection component and the handheld device; and output the second control signal to the second electromagnetic component, so that the second electromagnetic component generates electromagnetic induction with the first electromagnetic component and generates force coupling at the contact position.

2. The tactile display device according to claim 1, wherein: The position detection component, the first control component, the texture output component and the first electromagnetic component are stacked in sequence along the thickness direction of the tactile display device.

3. The tactile display device according to claim 1, wherein: The electromagnetic part includes a plurality of first electromagnetic coils, and the plurality of first electromagnetic coils are distributed in the texture output component in a dot matrix.

4. The tactile display device according to claim 3, wherein: The plurality of first electromagnetic coils are distributed in a matrix along the length direction of the texture output component; And / or, the first electromagnetic coil includes a first main coil and a first sub-coil, the diameter of the first main coil is larger than the diameter of the first sub-coil, and the first main coil is nested in the outer circumference of the first sub-coil.

5. A handheld device, wherein: For use with the tactile display device according to any one of claims 1 to 4, the handheld device comprises: case; A second control assembly is disposed in the housing; A second electromagnetic component is disposed in the housing and electrically connected to the second control component; The second electromagnetic component is used to receive a second control signal output by the tactile display device when the shell contacts the tactile display device, and generate electromagnetic induction with the first electromagnetic component of the tactile display device according to the second control signal and generate force coupling at the contact position.

6. The handheld device of claim 5, wherein: The handheld device also includes: A vibration component includes a third electromagnetic component and a vibration iron block both disposed in the shell, wherein the third electromagnetic component is electrically connected to the second control component and is used to drive the vibration iron block to move from a starting position to a target position at a first speed upon receiving a driving control signal output by the second control component, and to make the vibration iron block return from the target position to the starting position at a second speed by vibration when the current drops, wherein the first speed is greater than the second speed.

7. The handheld device of claim 6, wherein: The third electromagnetic component comprises: a first magnet and a second magnet, the housing having a first end and a second end oppositely disposed along its length direction, the first magnet being disposed in the first end, the second magnet being disposed in the second end, the vibrating iron block being located between the first magnet and the second magnet, one end of the vibrating iron block being connected to the first magnet via a first elastic member, and the other end of the vibrating iron block being connected to the second magnet via a second elastic member; The second electromagnetic coil is arranged on the inner peripheral wall of the shell and is arranged around the vibration iron block. The vibration iron block is arranged at the center of the second electromagnetic coil.

8. The handheld device of claim 5, wherein: The shell is a flexible shell, and the handheld device also includes a connecting piece, which is arranged in the shell, one end of the connecting piece is connected to the inner circumferential wall of the shell, and the other end of the connecting piece is connected to the second electromagnetic component.

9. The handheld device of claim 5, wherein: The inner peripheral wall of the shell is provided with a refrigeration component, and the refrigeration component is used to absorb or release the heat of the shell to adjust the temperature of the shell.

10. A tactile reproduction device, wherein: The tactile reproduction device comprises the tactile display device according to any one of claims 1 to 4; and the handheld device according to any one of claims 6 to 9.

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