CN114385006A - Notebook computer flexible touch pad capable of displaying touch - Google Patents
Notebook computer flexible touch pad capable of displaying touch Download PDFInfo
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- CN114385006A CN114385006A CN202111619885.XA CN202111619885A CN114385006A CN 114385006 A CN114385006 A CN 114385006A CN 202111619885 A CN202111619885 A CN 202111619885A CN 114385006 A CN114385006 A CN 114385006A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention discloses a flexible touch pad of a notebook computer capable of showing a touch sense, which comprises: the flexible sensing part is used for sensing the touch position and the contact pressure of an operator; a texture haptic disposed at one side of the flexible sensing part and providing texture haptic feedback to an operator by vibration generated by varying voltage; the shape tactile sensing part is arranged on one side, away from the flexible sensing part, of the texture tactile part and generates local deformation through voltage control to provide shape tactile feedback for an operator. The problem of the produced sense of touch of current tactile equipment among the prior art is felt singlely, leads to human-computer interaction not strong is solved.
Description
Technical Field
The invention relates to the technical field of touch equipment, in particular to a flexible touch pad of a notebook computer capable of presenting a touch sense.
Background
The notebook computer touch pad is a typical input device, can input human consciousness to a computer through a command form, thereby realizing the control of an operator to the computer, belongs to the unidirectional transmission of information, can feed back the information in the computer to the operator in a touch form, can display rich and vivid touch reappearance effects through the modulation of touch signals, can sense the touch information such as the shape, texture, softness and the like of a displayed object through the touch pad which can be presented by touch, enhances the immersion sense of man-machine interaction, and improves the naturalness of the operation of the notebook computer.
At present, touch equipment applied to a portable terminal mainly has rigidity as a main part, can only generate vibration touch stimulation through physical driving, is difficult to generate simulation of morphology touch, and cannot simulate soft touch. Therefore, the existing tactile equipment has single tactile feeling, and the man-machine interaction is not strong.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a flexible touch pad of a notebook computer capable of presenting a tactile sensation, which solves the problem that the conventional tactile device in the prior art has poor man-machine interaction due to single tactile sensation.
The technical scheme of the invention is as follows:
a haptically presentable flexible touch pad for a notebook computer, comprising: the flexible sensing part is used for sensing the touch position and the contact pressure of an operator;
the texture tactile part is arranged on one side of the flexible sensing part and provides texture tactile feedback for an operator through vibration generated by changing voltage;
the shape touch sensing part is arranged on one side, away from the flexible sensing part, of the texture touch part and generates local deformation through voltage control to provide shape touch feedback for an operator.
Further, the flexible sensing portion includes: a first layer of a flexible electrode, the first layer of the flexible electrode,
the second flexible electrode layer is arranged at intervals with the first flexible electrode layer;
the first flexible electrode layer is deformed by being pressed and contacts the second flexible electrode layer, so that the contact resistance is changed to detect a touch position and a contact pressure.
Further, the texture haptic comprises: the flexible dielectric layer is positioned on one side, away from the first flexible electrode layer, of the second flexible electrode layer;
the third flexible electrode layer is positioned on one side, away from the second flexibility, of the flexible dielectric layer;
by applying a varying voltage between the second and third flexible electrode layers, the flexible dielectric layer is driven to contract in the vertical plane and expand in the horizontal plane to simulate a tactile texture.
Further, the tactile sensation section includes: a plurality of micro-cells arranged in an array in a plane, each micro-cell comprising an electroactive polymer;
under the action of an electric field, hydrated cations in the electroactive polymer move from the anode to the cathode to form a water molecule concentration difference, and the diaphragms on two sides of the electroactive polymer bend towards the anode to generate deformation to simulate a tactile shape.
Further, the electroactive polymer is an ionic electroactive polymer;
each micro-cell is individually voltage-energized and each electroactive polymer is individually electric field-energized.
Furthermore, the flexible sensing part and the texture touch part are correspondingly provided with through holes, and the morphology touch sensing part generates bulges through the electroactive polymer and penetrates through the through holes.
Furthermore, the through holes and the micro units are arranged in a one-to-one correspondence manner.
Further, the flexible touch pad of the notebook computer further comprises a soft touch part, and the soft touch part is used for simulating touch softness and providing soft touch feedback for an operator.
Further, the soft haptic comprises: the magnetic liquid layer is positioned on one side, away from the texture touch part, of the appearance touch sensing part, and magnetorheological liquid is packaged inside the magnetic liquid layer;
the coil layer is located on one side, away from the appearance touch sensing part, of the magnetic liquid layer, and an electromagnetic coil is arranged in the coil layer and used for generating an electromagnetic field acting on the magnetic liquid layer.
Further, columnar microstructures are uniformly distributed in the magnetic liquid layer and connected with the upper surface and the lower surface in the magnetic liquid layer.
Further, the flexible touch pad of the notebook computer further comprises: a left key, a right key, and a middle key located between the left key and the right key;
the left key, the right key and the middle key are all positioned on one side of the flexible sensing part in the horizontal direction;
the left key, the right key and the middle key provide tactile feedback for an operator through loading voltage excitation control.
Has the advantages that: compared with the prior art, the flexible touch pad of the notebook computer, which is provided by the invention and can present the touch sense, integrates texture touch sense, appearance contour touch sense and touch control operation, and can detect the movement position and the contact pressure of the fingers of an operator through the flexible sensing part positioned on the uppermost layer; the texture touch part is positioned at the lower part of the flexible sensing part and provides texture touch feedback for an operator through vibration generated by changing voltage; the topographical tactile sensing portion is located below the textured tactile portion and is locally deformed by voltage control to provide topographical tactile feedback to the operator. When an operator executes sliding operation on the surface of the notebook computer touch panel, the flexible sensing part detects the motion state and pressure information of the fingers, the processor of the notebook computer sends control signals according to the motion information of the fingers through a touch presentation algorithm and controls the texture touch part and the appearance touch sensing part, so that the touch panel is modulated to generate texture and appearance touch simulation, rich and colorful touch experience can be presented through the touch panel by means of fusion of the dimension touch information, the immersion of the interaction between the operator and the notebook computer is enhanced, and the naturalness of human-computer interaction is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a flexible touch pad of a notebook computer capable of presenting a tactile sensation according to the present invention;
FIG. 2 is an exploded view of an embodiment of a flexible touch pad for a notebook computer according to the present invention;
FIG. 3 is a diagram illustrating a state of use of an embodiment of a flexible touch pad for a notebook computer according to the present invention;
FIG. 4 is a schematic structural diagram of a soft touch portion of a flexible touch pad of a notebook computer capable of presenting a touch feeling according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a soft haptic portion of a haptically-presentable flexible touch panel embodiment of a notebook computer of the present invention;
FIG. 6 is a front view of a portion of a structure of an embodiment of a notebook computer with tactile indication according to the present invention.
The reference numbers in the figures: 1. a flexible touch pad of a notebook computer; 2. a keyboard; 3. a host; 10. a flexible sensing portion; 11. a first flexible electrode layer; 12. a second flexible electrode layer; 20. a texture haptic; 21. a flexible dielectric layer; 22. a third flexible electrode layer; 30. a topographical tactile sensing portion; 31. an electroactive polymer; 32. a boss; 40. a through hole; 50. a soft tactile portion; 51. a magnetic liquid layer; 52. a coil layer; 53. a columnar microstructure; 60. a middle bond; 61. a left key; 62. and (6) a right key.
Detailed Description
The invention provides a flexible touch pad capable of showing a touch sense for a notebook computer, and in order to make the purpose, the technical scheme and the effect of the invention clearer and clearer, the invention is further described in detail by referring to the attached drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The touch pad of the notebook computer usually mainly takes one-way information input as a main part, although a small amount of touch pads with tactile feedback are provided, the touch pad mainly focuses on rigid tactile feedback, and a flexible touch pad of the notebook computer with a tactile feedback function is rarely provided.
Therefore, in view of the problems in the above-mentioned technologies, as shown in fig. 1 and fig. 2, the present embodiment proposes a flexible touch pad for a notebook computer capable of presenting a tactile sensation, including: a flexible sensing portion 10, a textured haptic portion 20, and a topographical haptic sensing portion 30. For convenience of structural description, taking an example that the flexible touch pad of the notebook computer is placed in a horizontal direction for operation, the flexible sensing part 10, the texture touch part 20 and the shape touch sensing part 30 are arranged in an up-down direction, the flexible sensing part 10 is located at the uppermost layer, a finger of an operator presses and slides on the flexible sensing part 10, and the flexible sensing part 10 is used for sensing a touch position and a contact pressure of the operator; the texture haptic part 20 is disposed at one side (lower side) of the flexible sensing part 10, the notebook computer is operated by a finger of an operator during an operation on the flexible sensing part 10, for example, a content is clicked, and a feedback signal is generated when the content is opened, the notebook computer sends the feedback signal to the touch pad, the touch pad generates a varying voltage at the texture haptic part 20, the varying voltage generates a vibration of the texture haptic part 20, the vibration is transmitted to the finger of the operator, so that the operator feels a texture haptic, and the texture haptic part 20 can provide a texture haptic feedback to the operator by the vibration generated by the varying voltage. The shape touch sensing part 30 is arranged on one side (lower side) of the texture touch part 20 opposite to the flexible sensing part 10, a finger of an operator operates the notebook computer on the flexible sensing part 10, for example, clicks another content, when the content is opened, a feedback signal is generated, the notebook computer sends the feedback signal to the touch pad, the touch pad generates a voltage on the shape touch sensing part 30, the voltage generates a shape deformation of the shape touch sensing part 30, the shape deformation is transmitted to the finger of the operator, so that the operator feels the shape touch, and the shape touch sensing part 30 can generate local deformation through voltage control to provide shape touch feedback for the operator.
The flexible touch pad capable of presenting the tactile sensation for the notebook computer, which is provided by the scheme, integrates texture tactile sensation, shape contour tactile sensation and touch operation, and can detect the movement position and the contact pressure of the finger of an operator through the flexible sensing part 10 positioned at the uppermost layer; the texture haptic part 20 is located at the lower part of the flexible sensing part 10 and provides texture haptic feedback to the operator by vibration generated by varying voltage; the topographical tactile sensing portion 30 is located below the texture haptic portion 20 and is locally deformed by voltage control to provide topographical tactile feedback to the operator. When an operator executes sliding operation on the surface of a notebook computer touch pad, the flexible sensing part 10 detects the motion state and pressure information of fingers, a processor of the notebook computer sends control signals according to the motion information of the fingers through a touch presentation algorithm and controls the texture touch part 20 and the appearance touch sensing part 30, so that the touch pad is modulated to generate texture and appearance touch simulation, rich and colorful touch experience can be presented through the touch pad by utilizing the fusion of the dimension touch information, the immersion feeling of the interaction between the operator and the notebook computer is enhanced, and the naturalness of man-machine interaction is improved.
As shown in fig. 1 and 2, in the specific structure of the present embodiment, the flexible sensing portion 10 specifically includes: a first flexible electrode layer 11, and a second flexible electrode layer 12. The first flexible electrode layer 11 is located above, and the second flexible electrode layer 12 is located below the first flexible electrode layer 11 and spaced apart from the first flexible electrode layer 11. When an operator slides a finger on the surface of the first flexible electrode layer 11, the finger presses the first flexible electrode layer 11, the first flexible electrode layer 11 is deformed by being pressed, a region contacted by the finger is concave towards the direction of the second flexible electrode layer 12, the concave first flexible electrode layer 11 is contacted with the second flexible electrode layer 12, so that the contact resistance between the upper electrode layer and the lower electrode layer is changed, the change of the contact resistance can be detected by the processor, and the touch position and the contact pressure are detected. And the first flexible electrode layer 11 and the second flexible electrode layer 12 are both flexibly arranged, so that the touch sense generated by the texture touch sensing part 20 and the appearance touch sensing part 30 can be well conducted through deformation, and the practicability is high.
It is easy to think that the flexible sensing part 10 can detect the finger movement by adopting the sensing methods such as capacitance type, piezoelectric type, triboelectric type, magnetoelectric type, inductance type, etc. besides the above-mentioned resistive sensing method.
As shown in fig. 1 and 2, the texture haptic 20 in the present embodiment specifically includes: a flexible dielectric layer 21, a third flexible electrode layer 22. And the texture haptic 20 also needs to share the second flexible electrode layer 12 to perform the function of texture haptic. The flexible dielectric layer 21 is located on the side (lower side) of the second flexible electrode layer 12 facing away from the first flexible electrode layer 11, and the third flexible electrode layer 22 is located on the side (lower side) of the flexible dielectric layer 21 facing away from the second flexibility. The flexible dielectric layer 21 is also a dielectric layer elastomer, based on a certain elasticity. By applying a varying voltage between the second flexible electrode layer 12 and the third flexible electrode layer 22, the flexible dielectric layer 21 is driven to contract in the vertical plane direction and expand in the horizontal plane direction to simulate a tactile texture.
In actual use, the fingers of the operator operate the notebook computer during the operation on the flexible sensing part 10. The notebook computer needs to feed back a texture touch signal, the processor of the notebook computer sends the texture touch feedback signal to the touch pad through a touch presentation algorithm, a voltage is applied between the second flexible electrode layer 12 and the third flexible electrode layer 22 at two ends of the flexible dielectric layer 21, the voltage is a high-frequency voltage, the flexible dielectric layer 21 can generate high-frequency vibration through the high-frequency voltage, and therefore touch textures are simulated, and the texture touch feedback is provided for an operator.
As shown in fig. 1 and fig. 2, the tactile sensation sensing portion 30 in the present embodiment specifically includes a plurality of micro units, the micro units are arranged in an array in a plane, the tactile sensation sensing portion 30 is formed by the micro units in a tiled manner, and each micro unit includes an electroactive polymer 31. Under the action of an electric field, hydrated cations in the electroactive polymer 31 move from the anode to the cathode to form a water molecule concentration difference, and the membranes on two sides of the electroactive polymer 31 bend towards the anode to generate deformation so as to simulate a tactile appearance. By applying different electric fields to the plurality of micro-cells, the form of the electroactive polymer 31 can be changed, and the change of the form can drive the flexible texture touch part 20 and the flexible sensing part 10, so that the flexible sensing part 10 forms an uneven profile structure to realize the function of simulating the profile.
The electroactive polymer 31 in this embodiment is an ionic electroactive polymer 31, and the use of the ionic electroactive polymer 31 has the advantages of more rapid sensing and short reaction time. Each micro-cell is individually voltage-energized and each electroactive polymer 31 is individually field-energized. Therefore, each micro unit can be controlled independently, and the plurality of micro units form structures with different heights, so that the contour of an object, such as mountain terrain and the like, can be displayed more accurately.
In actual use, the fingers of the operator operate the notebook computer during the operation on the flexible sensing part 10. When the notebook computer needs to feed back a shape touch signal, the processor of the notebook computer sends the shape touch feedback signal to the touch pad through a touch presentation algorithm, and further the shape touch feedback signal is applied to the corresponding micro unit voltage according to the touch feedback signal, the hydrated cations in the structure move from the anode to the cathode under the action of the voltage, the water molecule concentration difference enables the diaphragms on two sides of the electroactive polymer 31 to bend towards the anode to generate deformation, different micro units simulate the touch shape by controlling the electroactive polymer 31 to form local deformation motion, and the shape touch feedback is provided for an operator.
As shown in fig. 2 and 3, the flexible sensing portion 10 and the texture haptic portion 20 in this embodiment are respectively provided with a through hole 40, and the shape haptic sensing portion 30 is protruded by the electroactive polymer 31 and passes through the through hole 40. The electroactive polymer 31 thus deformed by bending may protrude from the through hole 40 to form the protrusion 32, thereby making it easier to form a contour of varying height on the surface of the touch pad and enabling the user to contact a simulated tactile appearance.
The through holes 40 in this embodiment are provided in one-to-one correspondence with the micro cells. The through holes 40 are also micro holes, so that the micro holes are densely distributed on the surface of the touch pad, the micro units are in one-to-one correspondence with the through holes 40, and the output appearance is easy to simulate through the uneven structure of the micro units protruding out of the through holes 40. The formed appearance profile is more accurate, and the use feeling of a user is improved.
As shown in fig. 2, 4 and 5, the flexible touch pad of the notebook computer in the present embodiment further includes a soft touch portion 50, the soft touch portion 50 is located below the shape touch sensing portion 30, and the soft touch portion 50 can simulate a touch softness to provide a soft touch feedback for an operator. The soft haptic 50 includes: a magnetic liquid layer 51, and a coil layer 52. The magnetic liquid layer 51 is positioned on one side (lower side) of the shape tactile sensing part 30, which is far away from the texture tactile part 20, and the magnetic liquid layer 51 encapsulates magnetorheological fluid inside. The coil layer 52 is located on a side of the magnetic liquid layer 51 facing away from the tactile sensation sensing portion 30, and an electromagnetic coil is provided in the coil layer 52 for generating an electromagnetic field acting on the magnetic liquid layer 51. By controlling the electromagnetic field intensity of the electromagnetic coil, the magnetorheological fluid generates a magnetorheological effect under the action of a magnetic field, so that the apparent viscosity representing the rheological property of the magnetorheological fluid is changed, the change from a Newton liquid state to a quasi-solid state can be instantly realized, and the process is reversible, so that the magnetorheological fluid has a wide application range when simulating the texture of an object, and a large range of simulated softness, further simulates the touch softness, and provides softness touch feedback for an operator.
As shown in fig. 5, columnar microstructures 53 are uniformly distributed inside the magnetic liquid layer 51, and the columnar microstructures 53 connect the upper surface and the lower surface inside the magnetic liquid layer 51. Because magnetic fluid layer 51 encapsulates magnetorheological fluid among the specific structure, consequently the magnetic fluid layer includes upper strip of paper used for sealing, lower floor's end skin to and be located the banding skin all around, its connection forms the inner chamber. The magnetorheological fluid is positioned in the inner cavity, and the upper-layer cover and the lower-layer bottom leather are connected through the columnar microstructures 53, so that the upper layer and the lower layer are pulled, and the smoothness and consistency of the surface when the softness is changed through the magnetorheological fluid are ensured. The problem of middle part protrusion caused by the magneto-rheological softness is avoided, and the upper layer and the lower layer are still in a plane when the magneto-rheological softness is changed. The columnar microstructure 53 may be a kevlar wire.
In actual use, the fingers of the operator operate the notebook computer during the operation on the flexible sensing part 10. When the notebook computer needs to feed back a softness tactile signal, the processor of the notebook computer sends the softness tactile feedback signal to the touch panel through a tactile presentation algorithm, and further voltage is applied to the coil layer 52 according to the softness tactile feedback signal, the electromagnetic coil on the coil layer 52 generates an electromagnetic field, the electromagnetic field acts on the magnetic liquid layer 51 on the upper layer, magnetorheological fluid in the magnetic liquid layer 51 generates a magnetorheological effect under the action of the magnetic field, so that the apparent viscosity representing the rheological property of the magnetorheological fluid is changed, and the change from a Newton liquid state to a quasi-solid state can be instantly realized; therefore, the softness of touch is simulated by controlling the intensity of the electromagnetic field of the electromagnetic coil, and the softness touch feedback is provided for an operator.
Additional soft haptics 50 may also employ air pressure driven variable stiffness, or other methods of varying stiffness to control touch pad softness.
As shown in fig. 1 and fig. 2, the flexible touch pad for a notebook computer in this embodiment further includes: a left key 61, a right key 62, and a middle key 60 located between the left key 61 and the right key 62. The left key 61, the right key 62, and the center key 60 are located on one side of the flexible sensing section 10 in the horizontal direction. The left key 61, right key 62 and center key 60 are typically located at the edge of the touch pad near the user for ease of operation. Different functions are implemented by clicking the left button 61, the right button 62 and the middle button 60. When the notebook computer needs to feed back a tactile signal, the processor of the notebook computer sends the tactile feedback signal to the left key 61, the right key 62 or/and the middle key 60 through the tactile presentation algorithm, and further applies voltage excitation to the left key 61, the right key 62 and the middle key 60. Thereby providing tactile feedback to the operator through the left key 61, the right key 62 and the center key 60 all through the applied voltage actuation control.
In this embodiment, the various functional parts and the layers are bonded together by the insulating silicon adhesive and mounted on the notebook computer to form the touch pad of the notebook computer capable of presenting a tactile sensation.
In another structure, by changing or changing the sequence of each functional layer on the touch panel, the touch display function such as texture, appearance, flexibility and the like can be realized at the same time. For example, the topographical tactile sensing portion 30 is disposed as a first layer, followed by the flexible sensing portion 10, the texture tactile portion 20, and the soft tactile portion 50. And the tactile feedback functions such as texture, appearance, softness and the like can also be realized.
Based on the same concept, the invention also provides a notebook computer capable of presenting tactile sensation, as shown in fig. 6. The notebook computer comprises a host 3, a keyboard 2, a display screen, and the notebook computer flexible touch pad 1 capable of presenting a touch sense. The host machine 3 is electrically connected with the keyboard 2, the display screen and the flexible touch pad 1 of the notebook computer, the touch pad is modulated according to motion information of fingers to generate touch simulation of textures, shapes and softness, rich and colorful touch experience can be presented by utilizing fusion of the dimension touch information, the interactive immersion of a user and the notebook computer is enhanced, and the naturalness of man-machine interaction is improved.
In summary, the flexible touch pad for the notebook computer capable of presenting the tactile sensation provided by the invention integrates the tactile sensation presentation of textures, appearance profiles, softness and the like, can simultaneously provide the sensing of the motion position of the finger and the tactile sensation presentation functions of the textures, the appearance profiles, the softness and the like through a sensing and driving integrated structure formed by nesting and stacking a plurality of layers, is mainly divided into four layers, and can detect the motion position and the contact pressure of the finger sequentially through the flexible sensing part 10; the texture haptic 20 is capable of simulating a haptic texture, providing texture haptic feedback to the operator; the shape touch sensing part 30 can simulate touch shapes and provide shape touch feedback for an operator; the soft haptic 50 can simulate tactile softness, providing the operator with soft haptic feedback. The left key 62, the right key 62 and the middle key 60 are made of polyvinylidene fluoride flexible piezoelectric materials, and touch feeling is generated through voltage loading excitation control. When a user executes sliding operation on the surface of the notebook computer touch pad, the sensing layer detects the motion state and pressure information of the fingers, the notebook computer modulates the touch pad according to the motion information of the fingers through a touch presentation algorithm to generate touch simulation of texture, appearance and softness, and rich and colorful touch experience can be presented by utilizing the fusion of the dimension touch information, so that the interactive immersion of the user and the notebook computer is enhanced, and the naturalness of human-computer interaction is improved.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A flexible touch pad for a notebook computer capable of tactile presentation, comprising: the flexible sensing part is used for sensing the touch position and the contact pressure of an operator;
a texture haptic disposed at one side of the flexible sensing part and providing texture haptic feedback to an operator by vibration generated by varying voltage;
the shape tactile sensing part is arranged on one side, away from the flexible sensing part, of the texture tactile part and generates local deformation through voltage control to provide shape tactile feedback for an operator.
2. The haptically presentable flexible touch pad for laptops according to claim 1, wherein said flexible sensor portion comprises: a first layer of a flexible electrode, the first layer of the flexible electrode,
a second flexible electrode layer disposed at an interval from the first flexible electrode layer;
the first flexible electrode layer is deformed by being pressed and contacts the second flexible electrode layer, so that contact resistance is changed to detect a touch position and a contact pressure.
3. The haptically presentable flexible touch pad for laptops according to claim 2, wherein said textured haptic comprises: a flexible dielectric layer on a side of the second flexible electrode layer facing away from the first flexible electrode layer;
a third flexible electrode layer on a side of the flexible dielectric layer facing away from the second flexibility;
the flexible dielectric layer is driven to contract in a vertical plane direction and expand in a horizontal plane direction by applying a varying voltage between the second flexible electrode layer and the third flexible electrode layer to simulate a tactile texture.
4. The haptically presentable flexible touch pad for notebook computers according to claim 1, wherein the topographical tactile sensing portion comprises: a plurality of microcells arranged in an array in a plane, each microcell comprising an electroactive polymer;
under the action of an electric field, hydrated cations in the electroactive polymer move from the anode to the cathode to form a water molecule concentration difference, and the diaphragms on two sides of the electroactive polymer bend towards the anode to generate deformation to simulate a tactile shape.
5. The flexible touch pad of claim 4, wherein the electroactive polymer is an ionic electroactive polymer;
each of the microcells is individually applied with a voltage and each of the electroactive polymers is individually applied with an electric field.
6. The flexible touch pad of the notebook computer capable of presenting tactile sensation of claim 4, wherein the flexible sensing part and the texture tactile part are correspondingly provided with through holes, and the shape tactile sensing part is raised by the electroactive polymer and penetrates through the through holes;
the through holes and the micro units are arranged in a one-to-one correspondence mode.
7. The haptically presentable laptop flexible touch panel according to claim 1, further comprising a soft haptic portion for simulating haptic softness and providing soft haptic feedback to an operator.
8. The haptically presentable flexible touch pad for laptops according to claim 7, wherein said supple haptic comprises:
the magnetic liquid layer is positioned on one side, away from the texture touch part, of the appearance touch sensing part, and magnetorheological liquid is encapsulated inside the magnetic liquid layer;
the coil layer is located on one side, away from the shape touch sensing part, of the magnetic liquid layer, and an electromagnetic coil is arranged in the coil layer and used for generating an electromagnetic field acting on the magnetic liquid layer.
9. The haptically presentable flexible touch pad for a notebook computer according to claim 8, wherein columnar microstructures are uniformly distributed inside the magnetic liquid layer, and the columnar microstructures are connected with the upper surface and the lower surface inside the magnetic liquid layer.
10. The haptically presentable laptop flexible touch panel of claim 1, further comprising: a left key, a right key and a middle key positioned between the left key and the right key;
the left key, the right key and the middle key are all positioned on one side of the flexible sensing part in the horizontal direction;
the left key, the right key and the middle key are all controlled by loading voltage excitation to provide tactile feedback for an operator.
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