KR20170084876A - Touch panel having carbon micro coil tactile sensor - Google Patents
Touch panel having carbon micro coil tactile sensor Download PDFInfo
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- KR20170084876A KR20170084876A KR1020160004267A KR20160004267A KR20170084876A KR 20170084876 A KR20170084876 A KR 20170084876A KR 1020160004267 A KR1020160004267 A KR 1020160004267A KR 20160004267 A KR20160004267 A KR 20160004267A KR 20170084876 A KR20170084876 A KR 20170084876A
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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
-
- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
Abstract
The present invention relates to a touch panel capable of sensing touch coordinates and a touch pressure using a change in impedance of a sensing unit including a carbon micro-coil by a touch input by a user, An electrode portion including a first electrode portion formed in a first axis direction and a second electrode portion formed in a second axis direction and a second electrode portion functioning as an impedance element for a drive signal applied to the first electrode portion, And a function of generating an impedance signal by measuring at least one of resistance, inductance and capacitance of the sensing part by receiving the sensing signal from the sensing part, and a function of generating an impedance signal by measuring at least one of resistance, inductance and capacitance of the sensing part And the impedance signal received from the impedance measuring unit Coordinate value is made to include a pattern or a touch processor having a function to determine the pressure pattern, and provides the detected carbon micro-coil unit for a touch panel comprising a carbon micro-coil of tactile sensor modules.
Description
The present invention relates to a touch panel including a carbon micro-coil tactile sensor, and more particularly, to a touch panel using a touch sensor, And a touch panel disposed at a lower portion of the display panel.
Various electronic apparatuses are being developed through the development of electronic communication technology. Such electronic apparatuses are gradually emphasizing design convenience with ease of user's operation, and diversification of input apparatuses is emphasized according to this trend. This type of input device has evolved from input devices such as keyboards and keypads to touch panels. In particular, since the launch of Apple's smartphones in 2007, input devices such as touch panels have stimulated consumers' Respectively. The touch panel market has the potential to expand beyond other products such as smartphones, tablet PCs, notebook PCs, AIO (All-In-One) PCs and DID (Digital Information Display) And multi-functionalization, and a low-price strategy for securing market dominance, development of touch panel technology in which flexible touch sensor, large area touch sensor, fingerprint recognition, and digitizer are internalized is being promoted.
The touch panel is composed of a touch sensor that senses and responds to the user's reaction, a controller that electrically converts signals generated by the touch sensor, and a micro controller unit (MCU) that instructs a specific operation by interfacing signals generated by the controller with displays and other electronic components And may be classified into a resistive method, an infra-red method, a surface acoustic wave (SAW) method, a capacitive method, and the like depending on an implementation method.
The resistive method is a method in which two sheets of substrates coated with electrodes are bonded together and then the upper and lower plates contact each other by applying pressure to the upper plate, thereby recognizing the position by the electric signal generated. Has been adopted for the initial PDA and navigation and the like. In this regard, in Korean Patent No. 10-0628265 (titled "Resistive Film Type Touch Panel," hereinafter referred to as "
The infrared (infra-red) method is advantageous in that it has excellent durability by detecting the coordinates by using the characteristic that the light is straight and the obstacle is blocked. In this regard, in Korean Patent Laid-open Publication No. 10-2014-0135944 (entitled "Infrared Touch Module, Infrared Touch Screen Panel and Display Device, hereinafter referred to as Prior Art 2"), And an infrared receiving unit mounted on two adjacent sidewalls of the circuit board outer frame, wherein the infrared emitting unit comprises a plurality of infrared rays emitted from a plurality of infrared rays Wherein the infrared receiving unit comprises a plurality of first infrared receivers corresponding one to one to the infrared emitters, each receiving infrared rays of horizontal direction emitted from a corresponding infrared emitter, The infrared ray emitting unit is located above or below the infrared ray emitters, Further comprising reflectors for reflecting the infrared rays emitted to them from the emitters, wherein the reflector reflects the horizontal infrared rays emitted by each of the infrared emitters and the horizontal infrared rays reflected by the reflector corresponding to the infrared emitters An infrared touch module is further disclosed wherein the orthographic projection on a horizontal plane has an angle set therebetween and the infrared receiver unit further comprises second infrared receivers for receiving the infrared rays in the horizontal direction reflected by the reflector have.
The surface acoustic wave (SAW) method uses the propagation characteristics of sound, and is a method of recognizing the position by detecting the point in time when an object does not receive the ultrasonic wave by blocking the traveling direction of the surface wave, and has an advantage of excellent durability. In this regard, Korean Patent Laid-Open Publication No. 10-2014-0123508 (entitled Ultrasonic Touch Sensor Having Display Monitor, hereinafter referred to as Prior Art 3) discloses a display monitor for providing a visual image as a touch screen display, Discloses a touch screen display including an ultrasonic device capable of emitting ultrasound energy and capable of detecting reflected ultrasonic energy.
The capacitive method is a self capacitance method and mutual capacitance method. The self capacitance method is a method in which a capacitance value that increases when a finger touch is made between a touch pad and a ground The mutual capacitance method detects a decrease in capacitance generated between the sensing electrode and the driving electrode during finger contact. In this regard, in Korean Patent No. 10-1340026 (entitled "Capacitive touch screen panel and method of manufacturing the same, hereinafter referred to as conventional technique 4"), a substrate having a screen region and an inactive region, A first electrode pattern part and a second electrode pattern part respectively formed on the side surface and the other side surface area of the substrate and electrically connected to the first electrode pattern part and the second electrode pattern part on one side surface and the other surface non- Wherein the first electrode pattern portion and the second electrode pattern portion and the first outer electrode wiring portion and the second outer electrode wiring portion are formed of the same Wherein each of the first electrode pattern and the second electrode pattern forming the first electrode pattern portion and the second electrode pattern portion is formed in the shape of a mesh when viewed in a plan view, A reinforcing conductive film is further formed on the first outer electrode wiring and the second outer electrode wiring formed on one side surface and the other side non-active area of the substrate by electrolytic / electroless plating or punching, And the touch panel is configured to detect a contact position according to a change in capacitance due to a contact between the first electrode pattern part and the second electrode pattern part.
SUMMARY OF THE INVENTION [0008] The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method for manufacturing a multi- The fourth problem that the conventional technology 2 is slow in response speed, the fourth problem that the conventional technology 3 is vulnerable to contamination, the fourth problem that the conventional technology 4 is difficult to operate by a hand with a pen or glove, 6, and the seventh problem that the prior art 4 has a considerable difficulty in manufacturing a large-sized display panel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.
According to another aspect of the present invention, there is provided a carbon micro-coil tactile sensor module for a touch panel, which is provided in a touch panel and determines a touch coordinate pattern or a touch pressure pattern by sensing a touch input by a user, And a second electrode portion formed in a second axial direction, and a second electrode portion that functions as an impedance element with respect to a driving signal applied to the first electrode portion, And a function of generating an impedance signal by measuring at least one of a resistance, an inductance and a capacitance of the sensing unit by receiving the sensing signal from the sensing unit, And a controller for processing the impedance signal received from the measuring unit and the impedance measuring unit, It is made to include a processor having a function to determine the pattern table or touch pressure pattern, and provides the detection part carbon micro-coil for a touch comprising a carbon micro-coil panel, the touch sensor module.
According to an embodiment of the present invention, the sensing unit may mix the carbon micro-coils by 2 to 10 wt%.
According to an embodiment of the present invention, the carbon micro-coil may have a three-dimensional spiral shape with a diameter of 1 to 10 micrometers and a length of 10 to 500 micrometers.
According to an embodiment of the present invention, the carbon micro-coil may be characterized in that the diameter of the carbon fiber forming the coil is 0.01 to 1 micrometer.
According to an embodiment of the present invention, the processor further includes a function of converting the impedance signal into a digital signal to determine the touch coordinate pattern or the touch pressure pattern.
According to an embodiment of the present invention, the touch panel carbon micro-coil tactile sensor module further includes a drive signal generator for applying the drive signal to the first electrode unit.
According to an embodiment of the present invention, the touch panel carbon micro-coil tactile sensor module further includes a substrate portion on which the electrode portion is formed.
According to an embodiment of the present invention, the substrate portion may include a first substrate on which the first electrode portion is formed and a second substrate on which the second electrode portion is formed.
According to an embodiment of the present invention, the substrate portion may include a first substrate on which the first electrode portion and the second electrode portion are formed.
In addition, the present invention provides a touch panel including a carbon micro-coil tactile sensor module for a touch panel, the touch panel being disposed under the display panel.
The present invention also provides a flexible touch panel including a carbon micro-coil tactile sensor module for a touch panel, the flexible touch panel being disposed under the flexible display panel.
According to another aspect of the present invention, there is provided a method of sensing an input touch of a carbon micro-coil tactile sensor module for a touch panel, the method comprising the steps of: applying a driving signal to a first electrode unit; sensing a touch input to a predetermined portion of the touch panel; Measuring an impedance of at least one of a resistance, an inductance and a capacitance of the sensing unit to generate an impedance signal; and processing the impedance unit to process the impedance signal to determine a touch coordinate pattern or a touch pressure pattern. The present invention provides an input touch detection method of a carbon micro-coil tactile sensor module for a touch panel.
According to the present invention, it is known that the sensitivity of a sensor made of a carbon micro-coil is several times higher than that of a typical resistive-type sensor or a capacitive-type sensor, The second effect is that it can detect not only contact and pressure of objects with a simple structure touch panel, but also detection of close objects. By using carbon micro-coil with microscale diameter, touch panel can be miniaturized The fourth effect is that the carbon micro-coil can be applied to electronic devices having various shapes because of its high degree of freedom in shape. The touch panel mainly senses a finger of a person. The carbon micro-coil has a unique characteristic Which is suitable for the general public. A sixth effect that a multi-touch can be realized, a seventh effect that a response speed is fast because a carbon micro-coil is used, an eighth effect that a texture of a target can be detected, The ninth effect that the device including the touch panel and the display panel can be thinned, the sharpness of the device can be improved, and the other problems of the above-described prior art do not appear.
It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the composition of the invention described in the claims.
1 is a schematic view showing an embodiment of a carbon micro-coil tactile sensor module for a touch panel according to the present invention.
FIG. 2 is an equivalent circuit diagram illustrating an equivalent circuit including a resistor, an inductor, and a capacitor, according to an embodiment of the present invention. FIG.
FIG. 3 is a graph illustrating a change in the real part of the impedance of the sensing unit when the sensing unit approaches or separates an object. FIG.
4 is a graph illustrating an inductance change of the sensing unit when a load is applied to a predetermined area of the sensing unit vertically.
5 is a graph showing an inductance and a capacitance change of the sensing unit when the sensing unit is brought into contact with the needle, according to an embodiment of the present invention.
6 is a graph showing inductance and capacitance change of the sensing unit when the brush is brought into contact with the sensing unit, according to an embodiment of the present invention.
FIG. 7 is a graph showing the sensitivity of the sensing unit to a non-living body, according to an embodiment. FIG.
8 is a graph showing the sensitivity of the sensing unit to living organisms, according to an embodiment of the present invention.
9 is a graph showing the sensitivity to copper of the sensing portion as one embodiment.
10 is a graph showing sensitivity of the sensing unit to acryl, according to one embodiment.
11 is a schematic diagram showing an embodiment of a carbon micro-coil tactile sensor module for a touch panel according to the present invention.
12 is a schematic diagram showing that the first electrode portion and the second electrode portion are formed on different planes, according to one embodiment.
13 is a schematic diagram showing that the first electrode portion and the second electrode portion are formed on the same plane as one embodiment.
FIG. 14 is a schematic view showing that the second electrode portion is formed at the lower portion of the display panel, according to one embodiment. FIG.
15 is a graph illustrating an inductance change of the sensing unit when the touch pressure is increased in the sensing unit.
16 is a schematic diagram showing a state in which writing is performed with a stylus on a smart device having a touch panel according to an embodiment of the present invention.
FIG. 17 is a schematic diagram showing a state in which writing is performed using a stylus on a smart device having a touch panel according to an embodiment of the present invention. FIG.
18 is a schematic diagram showing a state in which writing is performed with a stylus on a smart device having a touch panel according to an embodiment of the present invention.
19 is a schematic diagram showing an embodiment of a flexible touch panel of the present invention.
20 is a schematic diagram showing a state in which touch pressure is applied to touch coordinates of a touch panel in n steps according to an embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.
Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
The
The
The
Considering that the impedance of the
Two metal electrodes (one anode and one cathode) are connected to the
(Two positive electrodes and one negative electrode) are connected to the
The
The
The
Considering that the
The
The
The
Therefore, the impedance signal generated by the
The
The carbon micro-coil
The carbon micro-coil
The carbon micro-coil
The carbon micro-coil
The
The input touch sensing method of the carbon micro-coil
Second, the
Thirdly, the
Fourth, the
[Example 1]
<Fabrication of carbon micro-coil
An organic vehicle comprising a silicone resin was prepared. Then, 95 wt% of the organic vehicle and 5 wt% of carbon microcoil were kneaded to prepare a slurry. In addition, ten copper electrodes are regularly arranged in the x-axis direction, and the other ten copper electrodes insulated from each other are arranged in a constant y-axis direction, and the
location
location
pattern
location
pattern
location
pattern
Further, another
The touch coordinate is determined only when the real part of the impedance is equal to or greater than the reference value x 1 in FIG. 3, and the touch coordinate pattern is output. In order to implement the touch pressure sensing of the 10th step of the touch pressure step shown in FIG. 20, when even when 15 reference value x 2 is less than a, x 2 or more x 3 is less than x 3, when more than x 4 below, x 4 over x time less than 5, x 5 when more than x 6 below, x 6 as above x 7 below, x 7 x 8 over time is less than, more than x when x 8 9 below, more than 9 x x 10 x 10 or higher and lower than when the time was programmed to output a respective touch pressure pattern.
<Confirmation of Touch Coordinate Pattern and Touch Pressure Pattern>
An acrylic having 100 coordinate points is placed on the tactile sensor of the manufactured carbon micro-coil
[Example 2]
<Fabrication of carbon micro-coil
An organic vehicle comprising a silicone resin was prepared. Then, 95 wt% of the organic vehicle and 5 wt% of carbon microcoil were kneaded to prepare a slurry. In addition, ten copper electrodes are regularly arranged in the x-axis direction, and the other ten copper electrodes insulated from each other are arranged in a constant y-axis direction, and the
location
location
pattern
location
pattern
location
pattern
Also, another
The touch coordinate is determined only when the real part of the impedance is equal to or greater than the reference value x 1 in FIG. 3, and the touch coordinate pattern is output. In order to implement the touch pressure sensing of the 10th step of the touch pressure step shown in FIG. 20, when even when 15 reference value x 2 is less than a, x 2 or more x 3 is less than x 3, when more than x 4 below, x 4 over x time less than 5, x 5 when more than x 6 below, x 6 as above x 7 below, x 7 x 8 over time is less than, more than x when x 8 9 below, more than 9 x x 10 x 10 or higher and lower than when the time was programmed to output a respective touch pressure pattern.
<Confirmation of Touch Coordinate Pattern and Touch Pressure Pattern>
An acrylic having 100 coordinate points is placed on the tactile sensor of the manufactured carbon micro-coil
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be understood that various changes and modifications will be apparent to those skilled in the art. Obviously, the invention is not limited to the embodiments described above. Accordingly, the scope of protection of the present invention should be construed according to the following claims, and all technical ideas which fall within the scope of equivalence by alteration, substitution, substitution, and the like within the scope of the present invention, Range. In addition, it should be clarified that some configurations of the drawings are intended to explain the configuration more clearly and are provided in an exaggerated or reduced size than the actual configuration.
1: Touch panel, flexible touch panel
10: Carbon micro-coil tactile sensor module for touch panel
100:
110: first electrode portion
120: second electrode portion
101: Electrode
200:
300: Impedance measuring unit
400:
500: substrate portion
510: a first substrate
520: second substrate
600: driving signal generating unit
700:
710: Reference data
Claims (12)
An electrode unit 100 including a first electrode unit 110 formed in a first axis direction and a second electrode unit 120 formed in a second axis direction;
A sensing unit 200 having a function of acting as an impedance element with respect to a driving signal applied to the first electrode unit 110 and generating a sensing signal by changing the impedance as the touch is performed;
An impedance measuring unit 300 having a function of receiving the sensing signal from the sensing unit 200 and generating an impedance signal by measuring at least one of a resistance, an inductance, and a capacitance of the sensing unit 200; And
A processor unit 400 having a function of processing the impedance signal received from the impedance measuring unit 300 to determine the touch coordinate pattern or the touch pressure pattern;
, ≪ / RTI >
The sensing unit (200) includes a carbon micro-coil.
Wherein the sensing unit (200) is mixed with the carbon microcoils by 2 to 10 wt%.
Wherein the carbon micro-coil is a three-dimensional spiral shape having a diameter of 1 to 10 micrometers and a length of 10 to 500 micrometers.
Wherein the carbon micro-coil is a carbon micro-coil tactile sensor module for a touch panel having a diameter of 0.01 to 1 micrometer.
Wherein the processor unit (400) further comprises a function of converting the impedance signal to a digital signal to determine the touch coordinate pattern or the touch pressure pattern.
The touch panel carbon micro-coil tactile sensor module 10 includes:
A driving signal generator 600 for applying the driving signal to the first electrode unit 110;
Further comprising: a tactile sensor module for a touch panel.
The touch panel carbon micro-coil tactile sensor module 10 includes:
A substrate unit 500 on which the electrode unit 100 is formed;
Further comprising: a tactile sensor module for a touch panel.
The substrate portion 500
A first substrate 510 on which the first electrode unit 110 is formed and a second substrate 520 on which the second electrode unit 120 is formed,
The tactile sensor module for a touch panel according to claim 1,
The substrate portion 500
A first substrate 510 on which the first electrode unit 110 and the second electrode unit 120 are formed,
The tactile sensor module for a touch panel according to claim 1,
(I) applying the driving signal to the first electrode unit 110;
(II) detecting the input touch input to the predetermined portion of the touch panel 1 by the sensing unit 200;
(III) generating the impedance signal by measuring at least one of a resistance, an inductance, and a capacitance of the sensing unit 200 in the step (II) by the impedance measuring unit 300;
(IV) determining whether the touch coordinate pattern or the touch pressure pattern is processed by the processor unit 400 by processing the impedance signal generated in the step (III);
The touch sensor of claim 1, wherein the touch sensor is a touch sensor.
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US11548635B2 (en) * | 2019-03-28 | 2023-01-10 | Rakuten Group, Inc. | Unmanned flight equipment and delivery method |
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JP4023619B2 (en) * | 2003-07-14 | 2007-12-19 | 栖二 元島 | Tactile sensor and method for manufacturing tactile sensor |
US8154527B2 (en) | 2008-01-04 | 2012-04-10 | Tactus Technology | User interface system |
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US11548635B2 (en) * | 2019-03-28 | 2023-01-10 | Rakuten Group, Inc. | Unmanned flight equipment and delivery method |
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