WO2011078164A1 - Capteur pour mesurer l'entrée externe, et capteur sensible à la pression - Google Patents

Capteur pour mesurer l'entrée externe, et capteur sensible à la pression Download PDF

Info

Publication number
WO2011078164A1
WO2011078164A1 PCT/JP2010/073002 JP2010073002W WO2011078164A1 WO 2011078164 A1 WO2011078164 A1 WO 2011078164A1 JP 2010073002 W JP2010073002 W JP 2010073002W WO 2011078164 A1 WO2011078164 A1 WO 2011078164A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
substrate
sensitive
sensor
external force
Prior art date
Application number
PCT/JP2010/073002
Other languages
English (en)
Japanese (ja)
Inventor
鈴木　貴博
Original Assignee
日本写真印刷株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本写真印刷株式会社 filed Critical 日本写真印刷株式会社
Publication of WO2011078164A1 publication Critical patent/WO2011078164A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/205—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using distributed sensing elements

Definitions

  • the present invention relates to a sensor that measures an external input, for example, a pressure-sensitive sensor that measures an external force component in a direction perpendicular to the surface among external forces applied to the surface.
  • Patent Document 1 Conventionally, as a pressure-sensitive sensor for measuring an external force (or pressing force) applied to a certain surface, for example, there is a sensor configured as described in Patent Document 1.
  • plastic films formed by laminating electrodes and pressure-sensitive ink layers in order are combined with each other with pressure-sensitive ink members facing each other and an insulating layer having an adhesive layer on the front and back surfaces. Is.
  • the sensor of Patent Document 1 since the sensor of Patent Document 1 has irregularities on the surface of the pressure-sensitive ink layer, a gap of a certain distance is formed between the upper and lower pressure-sensitive ink layers, and the upper and lower pressure-sensitive ink layers are in close contact when no pressure is applied. It has a structure that prevents this.
  • the electrode of the upper film corresponding to a portion to which pressure is applied by bending the upper film is a pressure-sensitive ink layer. It contacts the electrode of the lower film through. Thereby, both electrodes will be in a conductive state.
  • the sensor of Patent Document 1 can measure the pressure applied to the upper film by detecting the conduction state of both electrodes and the change in resistance value according to the pressure applied to the pressure-sensitive ink layer. If the sensor of this patent document 1 is attached to the inside of a vehicle seat, for example, it can be determined whether or not an occupant is sitting on the seat, and the physique of the occupant can be determined from the pressure distribution.
  • a pressure-sensitive sensor is required to be mounted on a touch panel of a display as an alternative to a determination button.
  • the pressure sensor is mounted on such a portable electronic device, it is required to execute the display or function in response to a relatively small force by a human finger.
  • Patent Document 1 the sensor disclosed in Patent Document 1 is used, for example, for a purpose of determining whether an occupant is seated on a seat attached to the interior of a vehicle seat, and is intended for portable electronic devices. It cannot be applied to pressure sensors.
  • an object of the present invention is to provide an external input measurement sensor that solves the above-described problems and can reduce variations in measurement accuracy of external input between products.
  • An object of the present invention is to provide a pressure-sensitive sensor that can reduce variations in measurement accuracy of external force.
  • another object of the present invention is to provide a pressure-sensitive sensor that can suppress a reduction in the visibility of a display unit of a display device even when mounted on an electronic device having a touch panel.
  • the present invention is configured as follows.
  • the first and second substrates disposed to face each other, the pair of electrodes disposed between the first and second substrates, and the pair of electrodes disposed between the pair of electrodes,
  • the external pressure applied in the thickness direction of the first substrate is connected to the conductive pressure-sensitive ink member whose electrical resistance changes and the pair of electrodes, and the external force in the thickness direction of the first substrate is received.
  • Resistance measuring means for measuring the electric resistance value of the pressure-sensitive ink member in contact with the pair of electrodes, and resistance value R (Fmax) when the set maximum external force F max of the pressure-sensitive ink member measured by the resistance measuring means is applied.
  • a pressure-sensitive sensor comprising external force calculation means for calculating an external force added from a resistance value measured by a resistance measurement means based on external force-resistance characteristic standardization information S (FX) .
  • S (FX) ⁇ 1 / R (FX) ⁇ 1 / R (F0) ⁇ / ⁇ 1 / R (Fmax) ⁇ 1 / R (F0) ⁇
  • the pair of electrodes is disposed on one of the opposing surfaces of the first and second substrates or separately on both, and at the edge of the first or second substrate. Arranged between the first and second substrates so as to bond the first substrate and the second substrate, and between at least one of the pair of electrodes and the pressure-sensitive ink member.
  • the pressure-sensitive ink member is provided along the edge of the first or second substrate, and an external force is applied in the thickness direction of the first substrate.
  • the pair of electrodes are disposed opposite to the first and second substrates, and the pressure-sensitive ink member is disposed between the pair of electrodes in a state of covering at least one of the pair of electrodes.
  • An adhesive member that is disposed and disposed between the first and second substrates so as to bond the first substrate and the second substrate, and brings the pressure-sensitive ink member into contact with at least one of the pair of electrodes.
  • the pressure-sensitive sensor according to the third aspect, wherein the adhesive member attracts the first substrate and the second substrate to apply an initial load to the pressure-sensitive ink member.
  • At least one of the outer surface of the first substrate and the outer surface of the second substrate is provided with bumps that concentrate and transmit the load to the pressure-sensitive ink member.
  • a pressure-sensitive sensor according to any one of the first to fourth aspects is provided.
  • the load is arranged between at least one of the first substrate and the pressure-sensitive ink member and between the second substrate and the pressure-sensitive ink member, and the load is applied to the pressure-sensitive ink.
  • the pressure-sensitive sensor according to any one of the first aspect, the third aspect, and the fourth aspect, which is provided with a bump that is transmitted concentratedly on a member.
  • the pressure-sensitive sensor according to the sixth aspect wherein the thickness of the first substrate and the thickness of the second substrate are different.
  • the bump according to the sixth aspect wherein the bump is disposed between the first substrate and the pressure-sensitive ink member and between the second substrate and the pressure-sensitive ink member.
  • a pressure sensor is provided.
  • a sensor member that changes its electrical characteristics in response to an external input
  • an electrical characteristic measuring means having an electrical circuit that measures the electrical characteristic value of the sensor member, The electrical characteristic value C (Ymax) when the sensor member external input set maximum value Y max is added, the electrical characteristic value C (Y0) when no external input is added, and the external using the electrical resistance value C (YX) during the addition of setting the maximum value Y max of less than the external input Y X input, normalized based on the number 2 external input - the electrical characteristic normalization information S ( YX) is held and the external input is calculated based on the electrical characteristic standardization information S (YX) , and the external input applied to the sensor member is calculated from the electrical characteristic value measured by the electrical characteristic measuring means.
  • Input calculation means It comprises, providing a sensor.
  • the resistance R in the setting up the external force F max upon application of the pressure sensitive ink member measured by the resistance measuring means (Fmax), and the resistance value R (F0) in external force applying no time setting up an external force F resistance in the external force F X added at less than max by using the R (FX), normalized based on the number 1 - holding the normalized information S of "external force resistance characteristics" (FX), "external force -
  • the pressure-sensitive sensor is provided with external force calculation means for calculating an external force added from the resistance value measured by the resistance measurement means based on the normalized information S (FX) of “resistance characteristics”.
  • the standardized information S (FX) of “external force-resistance characteristics” standardized by Equation 1 apparent variations in “external force-resistance characteristics” among products of pressure sensors are reduced. Can be reduced.
  • the pair of electrodes are arranged in a frame shape along the edge of the first or second substrate, the transmittance of the inner part surrounded by the frame does not decrease. Therefore, even if it is mounted on an electronic device having a touch panel, it is possible to suppress a reduction in the visibility of the display unit by arranging the display unit of the display device inside the frame. Further, since the pressure-sensitive ink members are scattered along the edge of the first or second substrate, when the same external force is applied to the first substrate, the pressure-sensitive ink member becomes a pair of electrodes. Variation in the area in contact with both is suppressed. Therefore, the measurement accuracy of external force can be improved.
  • a configuration that reduces the apparent variation in “external force-resistance characteristics” between products is a configuration that involves an external input and changes in the electrical characteristics of the sensor member.
  • the present invention can also be applied to other sensors (sensors for external input measurement).
  • FIG. 7 The perspective view of the mobile telephone carrying the touch input device concerning 1st Embodiment of this invention.
  • A2-A2 sectional view of FIG. 7 is an exploded perspective view of the pressure sensor shown in FIG. Cross section of gap retaining member Sectional drawing which shows the 1st modification of the pressure sensor with which a touch input device is provided.
  • Sectional drawing which shows the 2nd modification of the pressure sensor with which a touch input device is provided.
  • Sectional drawing which shows the 3rd modification of the pressure sensor with which a touch input device is provided.
  • Sectional drawing which shows the state which the pressing force of the thickness direction was added to the pressure sensor which concerns on the 3rd modification of FIG.
  • Schematic block diagram showing the configuration of the pressing force detector Schematic plan view of the pressure sensor on the sample Graph of FR characteristics in pressure sensor (5 samples) Graph of standardized FR characteristics of pressure sensitive sensor (5 samples) The figure which shows arrangement
  • the pressure-sensitive sensor according to the first embodiment of the present invention is configured integrally with a touch panel to constitute a touch input device.
  • the touch input device can detect the strength of the pressing force with a pressure sensor in addition to the position detection on the touch panel.
  • the touch input device according to the first embodiment suitably functions as a touch input device for a display of an electronic device having a touch panel, particularly a portable electronic device such as a mobile phone or a game machine.
  • a portable electronic device such as a mobile phone or a game machine.
  • the touch input device is mounted on a mobile phone which is an example of a portable electronic device.
  • FIG. 1 is a perspective view of a mobile phone equipped with the touch input device according to the first embodiment
  • FIG. 2 is a cross-sectional view taken along line A1-A1 of FIG.
  • FIG. 3 is a perspective view of the touch input device.
  • the mobile phone 1 includes a synthetic resin casing 2 having a display window 2 ⁇ / b> A formed on the front surface and a display unit 3 ⁇ / b> A such as a liquid crystal display or an organic EL.
  • the display device 3, the touch input device 4 fitted in the display window 2 ⁇ / b> A, and a plurality of input keys 5 disposed on the front surface of the housing 2 are provided.
  • the display window 2A of the housing 2 is formed to have a step in order to allow the touch input device 4 to be fitted. As shown in FIG. 2, an opening 2a is formed on the bottom surface of the display window 2A so that the display 3A of the display device 3 can be seen.
  • the touch input device 4 is disposed on the frame-like portion 2b around the opening 2a and closes the opening 2a.
  • the shape and size of the display window 2A can be variously changed according to the shape and size of the touch input device 4.
  • the level difference of the display window 2A can be variously changed according to the thickness of the touch input device 4 and the like.
  • the shape and size of the opening 2a of the display window 2A can be variously changed according to the shape and size of the display 3A.
  • the shape of the display window 2A, the opening 2a, the display unit 3A, and the touch input device 4 is rectangular, and the height of the step of the display window 2A is the same between the surface of the housing 2 and the surface of the touch input device 4. It is set to become.
  • the touch input device 4 has a transparent window portion 4A and a frame-shaped decorative region 4B arranged around the transparent window portion 4A.
  • the touch input device 4 is disposed in the display window 2A of the casing 2 of the mobile phone, the display unit 3A of the display device 3 can be viewed from the transparent window portion 4A.
  • the touch input device 4 is based on a touch operation on the input surface of the touch input device 4, and detects a plane coordinate (XY coordinate) serving as the operation position, and a direction (Z direction) orthogonal to the input surface. And a pressure-sensitive sensor 20 for detecting the strength of the pressing force applied to.
  • the touch panel 10 is, for example, a resistive film type or capacitance type touch panel.
  • a capacitive touch panel is used as the touch panel 10
  • the touch panel 10 includes a transparent support substrate 11 serving as an input surface, a decorative film 12, a transparent film for X-axis detection 13, a transparent adhesive layer 14, a transparent film for Y-axis detection 15, The transparent adhesive layer 16, the shielding transparent film 17, the transparent adhesive layer 18, and the hard coat film 19 are sequentially laminated.
  • the transparent support substrate 11 is made of a material excellent in transparency, rigidity, and processability, for example, glass, polymethyl methacrylate (PMMA) resin, polycarbonate (PC) resin, and the like.
  • a decorative film 12 is attached to the lower surface of the transparent support substrate 11 with a transparent adhesive (not shown).
  • the decorative film 12 is formed by applying ink in a frame shape to the peripheral surface of the transparent film.
  • the decoration area 4B of the touch input device 4 is formed by a decoration portion 12a that is a portion to which the ink is applied, and a portion 12b where the decoration portion 12a is not provided becomes a transparent window portion 4A of the touch input device 4. .
  • polyvinyl chloride resin polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, cellulose ester resin, alkyd
  • a colored ink containing a resin such as a resin as a binder and an appropriate color pigment or dye as a colorant may be used.
  • the decoration part 12a may be formed by printing instead of application
  • normal printing methods such as an offset printing method, a gravure printing method, and a screen printing method, can be utilized.
  • the transparent film 13 for X-axis detection is stuck to the lower surface of the decorative film 12 with a transparent adhesive (not shown).
  • a transparent adhesive (not shown).
  • the routing circuit 13b is formed.
  • a transparent adhesive layer 14 is disposed on the lower surface of the X-axis detection transparent film 13 so as to cover the upper transparent electrode 13a and the routing circuit 13b, and the transparent adhesive layer 14 causes the Y-axis detection transparent film 15 to be formed. It is stuck.
  • the transparent adhesive layer 14 is, for example, a glue, an adhesive, or a double-sided adhesive tape.
  • a transparent adhesive layer 16 is disposed on the lower surface of the Y-axis detection transparent film 15 so as to cover the lower transparent electrode 15a and the routing circuit 15b, and the transparent film 17 for shielding is attached by the transparent adhesive layer 16.
  • the transparent adhesive layer 16 is, for example, a glue, an adhesive, or a double-sided adhesive tape.
  • a rectangular shielding transparent electrode 17a and a routing circuit 17b having a predetermined pattern for connection to the housing 2 (ground) are formed on the lower surface of the shielding transparent film 17.
  • the shield transparent electrode 17a is formed larger than the display unit 3A of the display device 3, and is disposed at a position where the display unit 3A can be included when viewed from the thickness direction of the touch input device 4.
  • the shielding transparent electrode 17a functions as a so-called electromagnetic shield that shields the disturbing electromagnetic waves (AC noise) generated from the display device 3.
  • a transparent adhesive layer 18 is disposed on the lower surface of the shield transparent film 17 so as to cover the shield transparent electrode 17a and the routing circuit 17b, and the hard coat film 19 is adhered by the transparent adhesive layer 18. Yes.
  • the transparent adhesive layer 18 is, for example, a glue, an adhesive, or a double-sided adhesive tape.
  • the transparent film 13 for X-axis detection, the transparent film 15 for Y-axis detection, and the transparent film 17 for shielding are made of, for example, polyethylene terephthalate (PET) resin, polycarbonate (PC) resin, or the like.
  • the hard coat film 19 is made of, for example, polyethylene terephthalate (PET) resin or polyimide.
  • the transparent electrodes 13a, 15a, and 17a and the routing circuits 13b, 15b, and 17b are made of a transparent conductive film.
  • a metal oxide such as tin oxide, indium oxide, antimony oxide, zinc oxide, cadmium oxide, or ITO, or a conductive polymer thin film can be given.
  • etching can be performed by forming a resist on a portion to be left as an electrode by a photolithography method, a screen method, or the like and then immersing in an etching solution such as hydrochloric acid.
  • the etching is performed by spraying an etching solution to remove a portion of the conductive film where the resist is not formed, and then immersing it in a solvent to remove the resist by swelling or dissolving it. Can also be performed. Etching can also be performed with a laser.
  • FIG. 7 is a plan view of the pressure-sensitive sensor according to the first embodiment
  • FIG. 8 is a cross-sectional view taken along line A2-A2 of FIG.
  • FIG. 9 is an exploded perspective view of the pressure sensor shown in FIG.
  • the pressure sensor 20 is attached to the lower surface of the hard coat film 19 of the touch panel 10 with an adhesive layer 30 such as glue, adhesive, or double-sided adhesive tape.
  • the pressure-sensitive sensor 20 is formed in a frame shape so as to be concealed by the decorative portion 12a when viewed from above the touch panel 10. Therefore, each member constituting the pressure sensor 20 is not limited to being made of a transparent material, and may be made of a colored material.
  • the pressure-sensitive sensor 20 includes an upper film 21 that is an example of a frame-shaped second substrate, and a lower film 22 that is an example of a frame-shaped first substrate that is disposed to face the upper film 21.
  • the pressure-sensitive sensor 20 is attached to the display window 2A by attaching the lower film 22 on the frame-like portion 2b of the display window 2A with, for example, an adhesive (not shown).
  • the thickness dimensions of the upper and lower films 21 and 22 are set to 25 ⁇ m to 100 ⁇ m, for example.
  • the material of the upper and lower films 21 and 22 is a material that can be used for a flexible substrate, for example, a general-purpose resin such as polyethylene terephthalate, polystyrene resin, polyolefin resin, ABS resin, AS resin, acrylic resin, or AN resin. Can be mentioned.
  • a general-purpose resin such as polyethylene terephthalate, polystyrene resin, polyolefin resin, ABS resin, AS resin, acrylic resin, or AN resin. Can be mentioned.
  • general-purpose engineering resins such as polystyrene resins, polycarbonate resins, polyacetal resins, polycarbonate-modified polyphenylene ether resins, polybutylene terephthalate resins, ultrahigh molecular weight polyethylene resins, polysulfone resins, polyphenylene sulfide resins, polyphenylene oxide resins, Super engineering resins such as polyarylate resin, polyetherimide resin, polyimide resin, liquid crystal polyester resin, and polyallyl heat-resistant resin can also be used.
  • an upper electrode 21a is arranged in a frame shape.
  • the lower electrode 22a is arranged in a frame shape so as to face the upper electrode 21a.
  • the upper electrode 21a and the lower electrode 22a constitute a pair of electrodes.
  • the thickness dimension of the upper and lower electrodes 21a and 22a is set to 10 ⁇ m to 20 ⁇ m, for example.
  • a metal such as gold, silver, copper, or nickel, or a conductive paste such as carbon
  • these forming methods include printing methods such as screen printing, offset printing, gravure printing, and flexographic printing, and a photoresist method.
  • the upper and lower electrodes 21a and 22a can be formed by attaching a metal foil such as copper or gold.
  • the upper and lower electrodes 21a and 22a may be formed by forming an electrode pattern with a resist on an FPC plated with a metal such as copper and etching a portion of the metal foil that is not protected by the resist. it can.
  • dot-shaped upper pressure-sensitive ink members 23a are arranged (that is, scattered) so as to partially cover the upper electrode 21a.
  • dot-like lower pressure-sensitive ink members 23b are disposed (that is, dotted) so as to partially cover the lower electrode 22a and face the upper pressure-sensitive ink member 23a.
  • the thickness dimension of the upper or lower pressure-sensitive ink members 23a, 23b (height from the upper film 21 or the lower film 22) is larger than the thickness dimension of the upper or lower electrodes 21a, 22a, and is set to 15 ⁇ m to 35 ⁇ m, for example. Yes.
  • the composition constituting the upper and lower pressure-sensitive ink members 23a and 23b is made of a material whose electric characteristics such as an electric resistance value change according to an external force.
  • a composition for example, a quantum tunneling composite material available under the trade name “QTC” from Peratech, UK can be used.
  • the upper pressure-sensitive ink member 23a and the lower pressure-sensitive ink member 23b can be disposed on the upper film 21 and the lower film 22 by application.
  • a printing method such as screen printing, offset printing, gravure printing, or flexographic printing can be used.
  • the gap holding member 24 is an insulating member that has adhesiveness to bond the upper film 21 and the lower film 22 and holds the gap between the upper pressure-sensitive ink member 23a and the lower pressure-sensitive ink member 23b. is there.
  • the gap holding member 24 is, for example, a double-sided pressure-sensitive adhesive tape in which a pressure-sensitive adhesive 24B such as an acrylic adhesive paste is formed on both surfaces of a core material 24A such as a polyethylene terephthalate film as shown in FIG.
  • the thickness of the gap holding member 24 is set to 50 ⁇ m to 100 ⁇ m, for example.
  • through holes 24a are provided in the four corners of the gap holding member 24, respectively.
  • Each through hole 24a has a width (or inner diameter) larger than that of the upper and lower pressure-sensitive ink members 23a and 23b.
  • the through hole 24a has a width of 3 mm
  • the upper and lower pressure-sensitive ink members 23a and 23b have a width of 2 mm
  • the upper and lower electrodes 21a and 22a have a width of 1 mm.
  • both the electrodes 21a and 22a are disposed at portions other than the portions corresponding to the through holes 24a. It is possible to prevent energization.
  • the connector 25 is connected to a pressing force detection unit (not shown) built in the mobile phone 1.
  • the pressure-sensitive sensor 20 having such a configuration is in a state where the upper pressure-sensitive ink member 23a and the lower pressure-sensitive ink member 23b are not in contact with each other by the gap holding member 24 during normal time (when no pressure is applied). .
  • a pressing force that is, an external force in the Z direction
  • the upper or lower films 21 and 22 are caused by this pressing force.
  • the upper and lower pressure-sensitive ink members 23a and 23b come into contact with each other by being bent. Thereby, a current flows between the upper electrode 21a and the lower electrode 22a. By detecting the magnitude of this current in the pressing force detection unit, it is possible to detect the pressing force on the input surface to the touch input device 4.
  • a pressure sensor (or an external force detection device using the pressure sensor) that detects the pressure on the touch input surface by combining the pressure sensor 20 and the pressure detection unit is configured. Has been.
  • the upper and lower electrodes 21a and 22a are arranged in a frame shape, so that the transmittance of the inner part surrounded by the frame does not decrease. Therefore, even if it is mounted on the mobile phone 1 having the touch panel 10, the visibility of the display unit 3 ⁇ / b> A can be prevented from being lowered by arranging the display unit 3 ⁇ / b> A of the display device 3 inside the frame. Further, since the pressure-sensitive ink members 23a and 23b are scattered at the respective corner portions of the upper and lower films 21 and 22, when the same pressing force is applied to the upper film 21, the upper or lower pressure-sensitive ink is used. It is possible to suppress variation in the area where the members 23a and 23b are in contact with both the upper and lower electrodes 21a and 22a. Therefore, the pressure measurement accuracy can be improved.
  • both the upper and lower electrodes 21a and 22a are covered with the upper and lower pressure-sensitive ink members 23a and 23b, but the present invention is not limited to this.
  • the upper electrode 21a may be covered with the upper pressure-sensitive ink member 23a while the lower electrode 22a may not be covered with the lower pressure-sensitive ink member 23b. That is, at least one of the upper and lower electrodes 21a and 22a may be covered with the pressure-sensitive ink member.
  • the pressure measurement accuracy is higher than when two pressure-sensitive ink members are disposed.
  • both the upper and lower electrodes 21a and 22a are covered with the upper and lower pressure-sensitive ink members 23a and 23b as in the first embodiment, the upper and lower electrodes 21a and 22a pass through. A portion exposed in the space of the hole 24a can be reduced. Thereby, problems, such as corrosion of the upper and lower electrodes 21a and 22a, can be suppressed.
  • the width of each through hole 24a of the gap holding member 24 is formed larger than the width of the upper and lower pressure-sensitive ink members 23a, 23b, but as shown in FIG. You may form smaller than the lower pressure sensitive ink members 23a and 23b. That is, the gap holding member 24 may be configured to contact the periphery of the upper and lower pressure-sensitive ink members 23a and 23b without a gap. As a result, the upper and lower electrodes 21a and 22a can be eliminated from the portions not covered by the upper and lower pressure-sensitive ink members 23a and 23b or the gap holding member 24. That is, it is possible to prevent the upper and lower electrodes 21a and 22a from being exposed in the space of the through hole 24a. Thereby, problems such as corrosion of the upper and lower electrodes 21a and 22a can be eliminated.
  • bumps 26 may be laminated as support members on the surface (back surface) of the lower film 22 where the lower electrode 22a is not provided.
  • the height of the bump 26 is, for example, 50 ⁇ m to 200 ⁇ m (including the thickness of the adhesive layer when an adhesive layer for bonding the bump to the lower film 22 is present).
  • the bumps 26 are preferably disposed on the back side (directly below) where the pressure-sensitive ink member is provided. Thereby, the upper and lower pressure-sensitive ink members 23a and 23b can be more reliably brought into contact with each other, and the pressure measurement accuracy can be further improved. As shown in FIG. 14, the lower film 22 is more easily deformed and the pressure measurement accuracy is improved when the gap holding member 24 and the upper or lower pressure-sensitive ink members 23a and 23b are not in contact with each other. it can.
  • the support member is not limited to the bump 26 and may be a member that is less deformed by pressure. A hemispherical member such as the bump 26 is more effective in transmitting the pressing force.
  • the support member is provided on the back surface of the lower film 22. However, the support member may be provided on the back surface (upper surface) of the upper film 21.
  • the upper or lower pressure-sensitive ink members 23a and 23b are arranged at the corners of the first or lower films 21 and 22.
  • the upper or lower pressure-sensitive ink members 23 a and 23 b may be arranged so as to be scattered along the edge portions of the upper or lower films 21 and 22.
  • the upper or lower pressure-sensitive ink members 23a and 23b are arranged on the left and right sides and at equal intervals.
  • the decorative film 12 is provided, but the decorative film 12 may not be provided.
  • the pressing force detection unit 50 is electrically connected to the upper and lower electrodes 21a and 22a through the connector 25, and detects the current value flowing through the pressure-sensitive ink members 23a and 23b.
  • a resistance measuring unit (an example of a resistance measuring unit) 51 that measures the electric resistance value of the pressure-sensitive ink members 23a and 23b, and the electric resistance value measured by the resistance measuring unit 51 are added to the touch input surface.
  • an external force calculating means 52 for calculating the magnitude of the pressing force (external force in the Z direction).
  • the external force calculation means 52 is information of “external force-resistance characteristics (hereinafter referred to as“ FR characteristics ”) indicating the relationship between the external force applied to the pressure-sensitive ink members 23a and 23b and the electrical resistance value (hereinafter referred to as“ FR characteristics ”). (FR characteristic normalization information) and the magnitude of the external force based on the electrical resistance value input from the resistance measurement unit 51 based on the FR characteristic information held in the storage part 53. And a calculation unit 54 for calculating the height. Information on the magnitude of the external force calculated by the calculation unit 54 is input to the control unit of the touch panel 10 by an output unit (not shown), and display control of the screen of the touch panel 10 is performed.
  • the pressure-sensitive sensor 120 has a configuration in which the planar arrangement of the pressure-sensitive ink members 23a and 23b is different from the pressure-sensitive sensor 20 of the first embodiment described above, the other configurations are the same as those of the pressure-sensitive sensor 20. It has basically the same configuration.
  • the pressure-sensitive sensor 120 in the pressure-sensitive sensor 120, five (a total of ten) sensations are provided at equal intervals on two opposite sides on the long side of the frame-shaped upper electrode 21a.
  • a pressure ink member 23a is disposed.
  • the lower electrode has the same arrangement configuration as that of the upper electrode 21a.
  • data processing is performed to suppress variations in FR characteristics among the samples of each pressure sensor 120. That is, data processing is performed so that the variation in FR characteristics among individuals does not stand out in the data.
  • the resistance value R (Fmax) when the set maximum external force F max of the pressure sensor 120 is applied (for example, when an external force of 400 gf is added )
  • the resistance value R (F0) when no external force is applied and the set maximum external force.
  • an external force F X less than F max for example, an external force in increments of 50 gf from an external force of 50 gf to 350 gf
  • the resistance value R (FX) when applied that is, using the data shown in the graph of FIG. 17
  • a number 3 standardizes FR characteristics.
  • the FR characteristic (standardized information of FR characteristic) S (FX) for each sample standardized using Equation 3 is shown in the graph of FIG.
  • the horizontal axis indicates the additional external force (gf), and the vertical axis indicates the normalized value (0 to 1).
  • the standardized information S (FX) of the FR characteristic of each pressure sensor 120 subjected to data processing in this way is stored in the storage unit 53 of the pressing force detection unit 50.
  • the electrical resistance value of the pressure-sensitive ink member is measured by the resistance measurement unit 51, and the storage unit 53 is calculated by the calculation unit 54.
  • the added external force is calculated from the measured electric resistance value based on the normalized information S (FX) of the FR characteristic stored in.
  • this invention is not limited to the said embodiment, It can implement with another various aspect.
  • a pressure sensor according to a second embodiment of the present invention will be described.
  • FIG. 19 is a diagram showing the arrangement of the pressure-sensitive sensor in the touch input device
  • FIG. 20 is an exploded view of the pressure-sensitive sensor
  • FIG. 21 is a cross-sectional view taken along the line A3-A3 of FIG. FIG.
  • the pressure-sensitive sensor 220 includes an upper film 221 and a lower film 222.
  • the upper electrode 221a is arranged in a frame shape.
  • the lower electrode 222a is arranged in a frame shape so as to face the upper electrode 221a.
  • a frame-shaped upper pressure-sensitive ink member 223a is disposed on the upper film 221 so as to cover the upper electrode 221a.
  • a frame-shaped lower pressure-sensitive ink member 223b is disposed on the lower film 222 so as to cover the lower electrode 222a and to face the upper pressure-sensitive ink member 223a.
  • the pressure-sensitive sensor 220 includes an upper electrode 221a formed on the upper film 221 and a lower electrode 222a formed on the lower film 222 so as to face the upper electrode 221a. And an upper pressure-sensitive ink member 223a that covers the upper electrode 221a, and a lower pressure-sensitive ink member 223b that covers the lower electrode 222a so as to face the upper pressure-sensitive ink member 223a.
  • An adhesive member 230 is disposed in a region where the upper film 221 and the lower film 222 are opposed to each other and at the peripheral edge portions of the pressure-sensitive ink members 223a and 223b.
  • the adhesive member 230 may be, for example, an elastic adhesive agent or double-sided adhesive material, or various elastic members such as rubber, tension coil springs, leaf springs, etc. that are set to exert a tensile force. It may be.
  • the adhesive member 230 having elasticity is used as described above, the thickness of the adhesive member 230 in a free state is thinner than the total thickness of the pair of electrodes 221a and 222a and the pressure-sensitive ink members 223a and 223b. It is preferable that it is comprised so that it may become.
  • maintain original thickness will act on the arrange
  • an initial load is applied to the pressure-sensitive ink members 223a and 223b as a result.
  • the initial unstable detection value is automatically eliminated, and the detection accuracy of the pressing force can be improved even when the pressure sensor detects the pressing force with a light load.
  • the adhesive member 230 may replace with the case where an elastic member is used as the adhesive member 230, and may be a case where an inelastic member is used.
  • the adhesive member 230 is, for example, an inelastic spacer that is thinner than the total thickness of the pair of electrodes 221a and 222a and the pressure-sensitive ink members 223a and 223b.
  • the pressure-sensitive ink members 223a and 223b to which the initial load is applied are further compressed through the upper film 221 or the lower film 222 to detect the pressing force. Can do.
  • the pressure-sensitive sensor 220 may further include bumps 224a on the outer surface of the lower film 222.
  • the bumps 224a By arranging the bumps 224a in this way, when an external load is applied to the pressure sensor 220, the bumps 224a support the lower pressure-sensitive ink member 223b from below, and concentrate the load to lower pressure-sensitive ink. It can be transmitted to the member 223b.
  • the bump 224a is preferably disposed on the back side (directly below) where the pressure-sensitive ink members 223a and 223b are disposed. With this configuration, as shown in FIG. 23, the upper pressure-sensitive ink member 223a and the lower pressure-sensitive ink member 223b can be reliably pressed against each other, and the pressure measurement accuracy of the pressure-sensitive sensor 220 can be improved. Can do.
  • FIG. 24 is a layout diagram of the pressure-sensitive sensor in the touch input device
  • FIG. 25 is an exploded view of the pressure-sensitive sensor
  • FIG. 26 is a sectional view taken along line A4-A4 in FIG.
  • the bump formation position which is a characteristic part in the third embodiment is described. Only described below.
  • a bump 324a is disposed between the lower film 322 and the lower electrode 322b.
  • the bump 324a is formed so that its installation area is equal to or less than the installation area of the electrode 322a.
  • a pressure-sensitive ink member 323 and a bump 324a are disposed in a region where the upper film 321 and the lower film 322 are opposed to each other. Therefore, when manufacturing the pressure-sensitive sensor 320, the bump 324a, the lower electrode 322a, and the lower pressure-sensitive ink member 323b are sequentially arranged on the lower film 322 by using, for example, a printing process. That is, since the substrate portion on one side of the pressure sensor 320 is formed in a series of steps, the positional displacement of each layer of the bump 324a, the lower electrode 322a, and the lower pressure-sensitive ink member 323b on the lower film 322 hardly occurs. In addition, it is not necessary to separately form bumps on the outer surface of the film of the pressure sensor 320, and the manufacturing process is simplified. Therefore, the productivity of the pressure sensor 320 provided with the bump 324a can be improved.
  • the bump 324a supports the lower pressure-sensitive ink member 323b from below and concentrates the load to lower the pressure-sensitive ink member. 323b (see FIG. 27).
  • the upper pressure-sensitive ink member 323a and the lower pressure-sensitive ink member 323b are reliably pressed against each other, and the pressure measurement accuracy of the pressure-sensitive sensor 320 can be improved.
  • the bumps 324a are not exposed on the outer surface of the lower film 322, the bumps 324a are not peeled off from the pressure detection unit 320 by rubbing against an external member.
  • the upper film 321 and the lower film 322 have the same thickness, but the upper film 321 and the lower film 322 may have different thicknesses.
  • the thickness of the lower film 322 is set to be thinner than the thickness of the upper film 321.
  • the lower film 322 having a smaller thickness is more easily deformed than the upper film 321, and the pressure sensor 320A in which the bump 324a disposed between the upper film 321 and the lower film 322 protrudes in a convex shape in the lower part. Is easily formed.
  • the contact area between the pressure sensor 320 and the upper frame portion 2b as an external member is reduced, and the load from the upper frame portion 2b is reduced by the pressure sensor.
  • the concentrated ink is transmitted to the pressure-sensitive ink member 323b of 320A. As a result, the measurement accuracy of the pressing force of the pressure sensor 320A can be improved.
  • the example in which the bump 324a is disposed only between the lower film 322 and the lower pressure-sensitive ink member 323b has been described.
  • the bump 324a is replaced with the upper film 321. You may arrange
  • the bump 324a is provided between the upper film 321 and the upper pressure ink member 323a and between the lower film 322 and the lower pressure ink member 323b. May be arranged.
  • the pressure-sensitive ink members 323a and 323b are more reliably pressed by the upper and lower bumps 324a. Therefore, the measurement accuracy of the pressure-sensitive ink members 323a and 323b is improved as compared with the case where the bump 324a is disposed only above or below the pressure-sensitive ink members 323a and 323b.
  • the example in which the pressure-sensitive ink members 323a and 323b are also arranged in the frame shape with respect to the electrodes 321a and 322a arranged in the frame shape has been described.
  • the pressure-sensitive ink members 323a and 323b may be interspersed with the electrodes 321a and 322a arranged in a frame shape.
  • the adhesive member 330 is disposed between the upper film 321 and the lower film 322 to apply the initial load to the pressure-sensitive ink members 323a and 323b. It is not limited. For example, like the pressure-sensitive sensor 320C according to the modification shown in FIG. 30, the upper film 321 and the lower film 322 are fused so that the pair of electrodes 321a and 322a and the pressure-sensitive ink members 323a and 323b are in contact with each other. The initial load may be applied to the pressure-sensitive ink members 323a and 323b.
  • FIG. 31 shows a block diagram showing a main configuration of a sensor 420 as an example of the sensor according to the fourth embodiment.
  • the sensor 420 receives an external input such as light, sound, heat, etc., for example, a sensor member 423 whose electrical characteristics such as voltage, current, capacitance, etc. change, and a sensor member And an external input detection unit 450 that detects an external input input (added) to 423.
  • the external input detection unit 450 is input to the sensor 420 based on the electrical property measurement unit 451 that measures the electrical property value of the sensor member 423 and the electrical property value measured by the electrical property measurement unit 451.
  • External input calculating means 452 for calculating the size of the external input.
  • the electrical characteristic measuring unit 451 and the external input calculating unit 452 are configured as an electric circuit.
  • the external input calculation means 452 has information of “external input-electric characteristics (hereinafter referred to as“ YC characteristics ”) indicating the relationship between the external input input to the sensor member 423 and the electrical characteristic values (hereinafter referred to as“ YC characteristics ”). YC characteristic normalization information) and a storage unit 453 based on the YC characteristic information stored in the storage unit 453, based on the electrical characteristic value input from the electrical characteristic measuring unit 451. And an arithmetic unit 454 for calculating the size of the external input.
  • a plurality of samples (products) of the sensor 420 having such a configuration for example, three (samples 420a, 420b, 420c) are prepared, and an external input is added to each sensor 420 to be added.
  • Data on the relationship between the external input and the electrical characteristic value is acquired.
  • an external input an external input in a range from 0 to a set maximum value is added to the sensor 420, and the electrical characteristic value of the sensor member 523 when each external input is added is an electrical characteristic measuring unit. Measure at 451.
  • the YC characteristic data of the samples of the three sensors 420a to 420c are shown in the graph of FIG.
  • the YC characteristic graph of each of the sensors 420a to 420c shown in FIG. 32 shows the external input Y added on the horizontal axis and the electric characteristic value C on the vertical axis. As is apparent from the graph shown in FIG. 32, it can be seen that there is variation in YC characteristics between the samples. This variation is a variation between individual products of the sensors 420a to 420c.
  • the electrical characteristic value C (Ymax) when the external input setting maximum value Y max of the sensor 420 is added the electrical characteristic value C (Y0) when no external input is added, and the external input setting.
  • the YC characteristic (standardized information of YC characteristic) S (YX) for each sample standardized using Equation 4 is shown in the graph of FIG.
  • the horizontal input indicates the external input Y
  • the vertical axis indicates the normalized value S (the normalized value of the electrical characteristic value C).
  • the variation among the three samples 420a to 420c can be suppressed as compared with the YC characteristic before normalization.
  • the standardized information S (YX) of the YC characteristics of the individual sensors 420a to 420c thus processed is stored in the storage unit 453 of the external input detection unit 450.
  • the electrical characteristic value of the sensor member 423 is measured by the electrical characteristic measuring unit 451 and stored in the storage unit 453 by the calculation unit 454. Based on the normalized information S (YX) of the YC characteristic, an external input added from the measured electrical characteristic value is calculated.
  • the data processing for normalizing the YC characteristic is performed using Equation 4, and the external input added from the electrical characteristic value based on the normalization information S (YX) of the YC characteristic Is calculated, it is possible to suppress variations in YC characteristics among the sensors 420a to 420c.
  • data processing for standardization does not correct the relationship between the electrical characteristic value and the added external input, but changes the appearance of the data.
  • Data processing can be performed while maintaining the relationship between the target characteristic value and the added external input. Therefore, variations in the measurement accuracy of external input between products can be suppressed, and a sensor having stable measurement accuracy can be provided.
  • the idea of the present invention that suppresses the variation in the YC characteristics among the individual sensors based on the standardized information of the YC characteristics in such a sensor is that the electrical characteristics are obtained by receiving an external input.
  • the present invention can be applied to a sensor having a sensor member that changes.
  • the present invention can be applied to a pressure sensor that uses a voltage generated by applying pressure to a piezoelectric element, with a sensor member as a piezoelectric element, an external input as pressure, and a change in electrical characteristics as a voltage change. it can.
  • the sensor member is an electrostatic sensor (capacitor)
  • the external input is in contact with the finger
  • the change in electrical characteristics is a change in capacitance value
  • the capacitance value changes when the finger touches the electrostatic sensor (closes the finger).
  • the present invention can be applied to a contact sensor that utilizes the fact that the angle changes.
  • the present invention is applied to an optical sensor that utilizes a change in resistance value by irradiating light to a light receiving element, with a sensor member as a light receiving element, external input as light irradiation, and a change in electrical characteristics as resistance change. can do.
  • the present invention can be applied to a temperature sensor that utilizes the change in resistance value when the temperature of the thermistor changes, with the sensor member as the thermistor, the external input as the temperature, and the change in electrical characteristics as the resistance change.
  • the pressure-sensitive sensor according to the present invention can suppress a decrease in the visibility of the display unit of the display device even when mounted on an electronic device having a touch panel, and can improve pressure measurement accuracy.
  • the present invention is useful for electronic devices including portable electronic devices such as mobile phones and game machines. Further, the sensor according to the present invention is useful in various industries in which such a sensor is used because it can reduce variations in measurement accuracy among individuals in a sensor that measures external inputs such as light, sound, and heat. .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Position Input By Displaying (AREA)

Abstract

Le capteur sensible à la pression selon l'invention comporte un moyen de calcul de force externe qui contient des informations normalisées (S(FX)) concernant la « caractéristique de résistance à la force externe » qui est normalisée sur la base d'une expression numérique prédéterminée au moyen d'une valeur de résistance (R(Fmax)) lorsque la force externe maximale définie (Fmax) d'un élément d'encre sensible à la pression est ajoutée, une valeur de résistance (R(F0)) lorsqu'aucune force externe n'est ajouté, et une valeur de résistance (R(FX)) lorsqu'une force externe (FX) inférieure à la force externe maximale définie (Fmax) est ajoutée, les valeurs de résistance étant mesurées par un moyen de mesure de résistance, et calcule la force externe ajoutée à partir d'une valeur de résistance mesurée par le moyen de mesure de résistance sur la base des informations normalisées (S(FX)) concernant la « caractéristique de résistance à la force externe ». Par conséquent, des variations apparentes dans la « caractéristique de résistance à la force externe » parmi des produits de capteurs sensibles à la pression peuvent être réduites.
PCT/JP2010/073002 2009-12-25 2010-12-21 Capteur pour mesurer l'entrée externe, et capteur sensible à la pression WO2011078164A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009294768A JP2011133421A (ja) 2009-12-25 2009-12-25 感圧センサ
JP2009-294768 2009-12-25

Publications (1)

Publication Number Publication Date
WO2011078164A1 true WO2011078164A1 (fr) 2011-06-30

Family

ID=44195691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/073002 WO2011078164A1 (fr) 2009-12-25 2010-12-21 Capteur pour mesurer l'entrée externe, et capteur sensible à la pression

Country Status (3)

Country Link
JP (1) JP2011133421A (fr)
TW (1) TW201144781A (fr)
WO (1) WO2011078164A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105992938A (zh) * 2013-12-27 2016-10-05 株式会社藤仓 输入装置以及输入装置的制造方法
EP2919249A4 (fr) * 2012-11-08 2016-12-14 Ajinomoto Kk Commutateur à membrane et objet l'employant
TWI594155B (zh) * 2015-08-04 2017-08-01 敦泰電子股份有限公司 嵌入式施力感測器之面板裝置
CN110325114A (zh) * 2017-02-22 2019-10-11 大金工业株式会社 生物信息获取装置
WO2022084308A1 (fr) * 2020-10-19 2022-04-28 Innovationlab Gmbh Capteur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013146231A1 (ja) * 2012-03-29 2015-12-10 住友理工株式会社 変形センサ
JP2015045623A (ja) * 2013-08-29 2015-03-12 バンドー化学株式会社 静電容量型センサシート及び静電容量型センサ
WO2015093356A1 (fr) * 2013-12-17 2015-06-25 株式会社村田製作所 Procédé de fabrication de capteur piézoélectrique
JP5586776B1 (ja) * 2013-12-27 2014-09-10 株式会社フジクラ 入力装置及び入力装置の制御方法
JP6200361B2 (ja) * 2014-03-25 2017-09-20 株式会社フジクラ 感圧センサ及び入力装置
WO2018151268A1 (fr) * 2017-02-17 2018-08-23 ソニー株式会社 Capteur, dispositif d'entrée et appareil électronique

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110436U (fr) * 1980-12-26 1982-07-08
JPS6139198A (ja) * 1984-07-31 1986-02-25 日本電気株式会社 テレメ−タ計測装置
JPS61207939A (ja) * 1985-03-13 1986-09-16 Yokohama Rubber Co Ltd:The 圧力センサ−
JPH01117498A (ja) * 1986-10-01 1989-05-10 Honeywell Inc 伝送装置
JPH01159800A (ja) * 1987-12-17 1989-06-22 Hitachi Ltd 線式データ伝送方法
JP2001165788A (ja) * 1999-12-06 2001-06-22 Alps Electric Co Ltd 感圧装置
JP2002071486A (ja) * 2000-08-25 2002-03-08 Denso Corp 乗員判別システム
JP2005106513A (ja) * 2003-09-29 2005-04-21 Aisin Seiki Co Ltd 感圧センサのキャリブレーション方法
JP2006266812A (ja) * 2005-03-23 2006-10-05 Fujikura Ltd 感圧センサ装置
JP2008046817A (ja) * 2006-08-14 2008-02-28 Alps Electric Co Ltd 表示入力装置及びこれを用いた電子機器
JP2009134473A (ja) * 2007-11-29 2009-06-18 Sony Corp 押圧検知センサ、入力装置及び電子機器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0970048A (ja) * 1995-06-21 1997-03-11 Studio Gen:Kk ベクトル量子化方法、画像情報圧縮方法、音声情報圧縮方法、圧縮画像情報記録媒体、圧縮画像情報再生装置及び圧縮画像情報通信装置
JP2000149387A (ja) * 1998-11-16 2000-05-30 Hitachi Ltd 磁気記録媒体の検査方法及び検査装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57110436U (fr) * 1980-12-26 1982-07-08
JPS6139198A (ja) * 1984-07-31 1986-02-25 日本電気株式会社 テレメ−タ計測装置
JPS61207939A (ja) * 1985-03-13 1986-09-16 Yokohama Rubber Co Ltd:The 圧力センサ−
JPH01117498A (ja) * 1986-10-01 1989-05-10 Honeywell Inc 伝送装置
JPH01159800A (ja) * 1987-12-17 1989-06-22 Hitachi Ltd 線式データ伝送方法
JP2001165788A (ja) * 1999-12-06 2001-06-22 Alps Electric Co Ltd 感圧装置
JP2002071486A (ja) * 2000-08-25 2002-03-08 Denso Corp 乗員判別システム
JP2005106513A (ja) * 2003-09-29 2005-04-21 Aisin Seiki Co Ltd 感圧センサのキャリブレーション方法
JP2006266812A (ja) * 2005-03-23 2006-10-05 Fujikura Ltd 感圧センサ装置
JP2008046817A (ja) * 2006-08-14 2008-02-28 Alps Electric Co Ltd 表示入力装置及びこれを用いた電子機器
JP2009134473A (ja) * 2007-11-29 2009-06-18 Sony Corp 押圧検知センサ、入力装置及び電子機器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2919249A4 (fr) * 2012-11-08 2016-12-14 Ajinomoto Kk Commutateur à membrane et objet l'employant
US9786450B2 (en) 2012-11-08 2017-10-10 Ajinomoto Co., Inc. Membrane switch and object employing same
CN105992938A (zh) * 2013-12-27 2016-10-05 株式会社藤仓 输入装置以及输入装置的制造方法
US10126185B2 (en) 2013-12-27 2018-11-13 Fujikura Ltd. Input device and method for producing input device
TWI594155B (zh) * 2015-08-04 2017-08-01 敦泰電子股份有限公司 嵌入式施力感測器之面板裝置
CN110325114A (zh) * 2017-02-22 2019-10-11 大金工业株式会社 生物信息获取装置
CN110325114B (zh) * 2017-02-22 2022-12-27 大金工业株式会社 生物信息获取装置
WO2022084308A1 (fr) * 2020-10-19 2022-04-28 Innovationlab Gmbh Capteur

Also Published As

Publication number Publication date
JP2011133421A (ja) 2011-07-07
TW201144781A (en) 2011-12-16

Similar Documents

Publication Publication Date Title
WO2011078164A1 (fr) Capteur pour mesurer l'entrée externe, et capteur sensible à la pression
JP4642158B2 (ja) 押圧検出機能を有するタッチパネル及び当該タッチパネル用感圧センサ
JP5026486B2 (ja) 感圧センサを備えたタッチ入力デバイスの実装構造
TWI428813B (zh) 具有按壓檢測功能之電阻膜式觸控面板
TWI482055B (zh) 資訊輸入裝置及使用於資訊輸入裝置之壓力檢測單元
JP6244282B2 (ja) 静電容量タッチパネル
US8243225B2 (en) Electronic device having protection panel
KR101626299B1 (ko) 접착층을 구비한 필름형 감압 센서와 이를 이용한 터치 패드, 터치 입력 기능을 구비한 보호 패널 및 전자 기기
TWI545472B (zh) 壓力檢測部及具備壓力檢測部的資訊輸入裝置
JP5885865B2 (ja) 圧力検出装置及び情報入力装置
WO2015093065A1 (fr) Détecteur de pression et panneau tactile comportant un détecteur de pression
JP2011003104A (ja) 押圧検出機能を有する抵抗膜式タッチパネル
TWI494550B (zh) 壓力檢測單元
JP5350725B2 (ja) 感圧センサ
JP2012103273A (ja) 感圧センサ
JP2010085233A (ja) 感圧センサ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10839394

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10839394

Country of ref document: EP

Kind code of ref document: A1