WO2012117738A1 - Appareil électronique et procédé de fabrication pour appareil électronique - Google Patents

Appareil électronique et procédé de fabrication pour appareil électronique Download PDF

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Publication number
WO2012117738A1
WO2012117738A1 PCT/JP2012/001426 JP2012001426W WO2012117738A1 WO 2012117738 A1 WO2012117738 A1 WO 2012117738A1 JP 2012001426 W JP2012001426 W JP 2012001426W WO 2012117738 A1 WO2012117738 A1 WO 2012117738A1
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WO
WIPO (PCT)
Prior art keywords
panel
elastic member
touch panel
piezoelectric element
hole
Prior art date
Application number
PCT/JP2012/001426
Other languages
English (en)
Japanese (ja)
Inventor
堀井　省次
修平 久野
Original Assignee
京セラ株式会社
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 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2013502199A priority Critical patent/JPWO2012117738A1/ja
Publication of WO2012117738A1 publication Critical patent/WO2012117738A1/fr

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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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1626—Constructional details or arrangements for portable computers with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly

Definitions

  • the present invention relates to an electronic device that includes a panel that forms an appearance and vibrates the panel.
  • touch panels and touch pads are widely used as input devices for electronic devices.
  • a device that feeds back a feeling of operation to an operator's fingertip by vibrating the touch panel or the touch pad is proposed (for example, see Patent Document 1).
  • the above-mentioned problem is a problem that is expected to occur in common in an electronic device that includes a panel that configures the appearance and vibrates the panel.
  • a predetermined electrical signal (audio signal) is applied to vibrate the panel, and vibration is applied to a part of the user's body (for example, the cartilage of the outer ear) that contacts the panel.
  • an electronic device that vibrates the panel there is an electronic device having a function of removing water droplets and dirt attached to the panel due to the vibration of the panel.
  • An electronic apparatus is an electronic apparatus including a panel, a vibrating unit that vibrates the panel, and a support member that supports the panel via a frame-shaped elastic member.
  • the elastic member has a hole and a heat shrink member filled in the hole, and is waterproof between the touch panel and the elastic member and between the elastic member and the support member.
  • the adhesive member provided is arrange
  • An electronic apparatus is an electronic apparatus including a panel, a vibration section that bends and vibrates the panel, and a support member that supports the panel via a frame-like elastic member.
  • the elastic member has a hole, and an adhesive member having waterproofness and gas permeability is disposed between the panel and the elastic member and between the elastic member and the support member. It is characterized by that.
  • the panel and the elastic member, and the elastic member and the support member are bonded to each other through the adhesive member, and then the heat-shrinkable under a heating environment.
  • the member is contracted.
  • a method for manufacturing an electronic apparatus uses a frame-shaped elastic member having holes, a sublimation member that sublimates from a solid to a gas, and an adhesive member having waterproofness and gas permeability.
  • a sublimation member that sublimates from a solid to a gas
  • an adhesive member having waterproofness and gas permeability.
  • an electronic device that includes a panel that configures the appearance and vibrates the panel can be made difficult to inhibit the vibration of the panel, and can be improved in dust resistance and waterproofness.
  • FIG. 1 is a perspective view showing an entire electronic apparatus according to an embodiment of the present invention.
  • FIG. 2 is a plan view of the electronic device shown in FIG. 1 with an upper housing removed.
  • FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, wherein (a) shows a state in which the heat shrinkable member is filled in the through hole of the elastic member, and (b) shows the heat shrinkable member in a heating environment. It is a figure which shows the state expanded / contracted. It is a top view of the elastic member shown in FIG. It is a top view of the adhesive member shown in FIG.3 and FIG.7. It is the top view except the upper housing
  • FIG. 7 is a cross-sectional view taken along the line BB in FIG. 6,
  • (a) is a diagram showing a state in which the through hole of the elastic member is filled with a sublimation member, and
  • (b) is a sublimation member sublimated in a sublimation environment. It is a figure which shows a state.
  • It is a top view of the adhesive member used for the electronic device which concerns on the 3rd Embodiment of this invention.
  • (A) is a front view of the electronic device which concerns on the 3rd Embodiment of this invention.
  • FIG. 11B is a sectional view taken along line bb in FIG. It is sectional drawing which shows the modification of the electronic device which concerns on the 3rd Embodiment of this invention.
  • FIG. 1 is a perspective view showing an entire electronic apparatus according to an embodiment of the present invention.
  • the electronic device 1 according to the present embodiment includes an upper housing 11, a lower housing 12, and a touch panel 21 in appearance.
  • the touch panel 21 will be described later.
  • the upper casing 11 and the lower casing 12 constitute the casing 10 by combining them together.
  • a suitable waterproof structure is achieved by, for example, a sealed structure via rubber packing. And dust-proof measures are taken.
  • the upper housing 11 and the lower housing 12 are preferably made of a material that can withstand a certain degree of impact, such as a resin case. In the following description, detailed description of the combined structure of the upper housing 11 and the lower housing 12 is omitted.
  • FIG. 2 is a plan view of the electronic apparatus 1 shown in FIG. 1 with the upper housing 11 removed
  • FIG. 3A is a cross-sectional view taken along the line AA in FIG. It is a figure which shows the state by which the heat contraction member was filled into the through-hole of this.
  • the touch panel 21 is supported by the lower housing 12 via an elastic member 30.
  • an adhesive member 41 is disposed on the front surface and the back surface of the touch panel 21, and the touch panel 21, the elastic member 30, and the lower housing 12 are coupled by the adhesive member 41.
  • the touch panel 21 is formed of, for example, a transparent resin material.
  • the touch panel 21 has a rectangular shape, but may have a square shape.
  • “rectangular shape” and “square shape” include not only a case where each side is a straight line but also a case where it is an arc.
  • the two vibrating portions 22 extend substantially in parallel in the direction along the edge 21 b on the short side in the vicinity of the short side of the touch panel 21.
  • it is fixed to the back surface of the touch panel 21 with a double-sided tape, an adhesive, or the like.
  • the vibration unit 22 presents a tactile sensation to the contact object that is in contact with the operation area 21a of the touch panel 21 by generating vibration according to a predetermined vibration pattern.
  • the vibration unit 22 is, for example, a piezoelectric element, and is expanded and contracted in the longitudinal direction based on, for example, a drive signal supplied from a control unit on the circuit board 50 illustrated in FIG. .
  • the touch panel 21 can be curved and vibrated in a direction indicated by an arrow in FIG. 1, that is, a direction in which the short side is bent more greatly than the long side.
  • the touch panel 21 is disposed on the front surface of the display unit 60 illustrated in FIG. 3, for example, and touches an object displayed on the display unit 60 with an operator's finger, a stylus pen, or the like (hereinafter simply referred to as “contact object”). Is detected in the operation area 21a of the corresponding touch panel 21. Therefore, in the present embodiment, the “touch panel” will be described assuming a member disposed on the front surface of the display unit 60 which can be an LCD or the like, that is, a member provided separately from the display unit 60. Further, the touch panel 21 detects the position of contact of the contact object with respect to the operation region 21a, and notifies the detected position of the contact to, for example, the control unit on the circuit board 50 described above.
  • the touch panel 21 may be a touch panel configured by a known system such as a resistance film system, a capacitance system, and an optical system.
  • a known system such as a resistance film system, a capacitance system, and an optical system.
  • the touch panel 21 it is not essential that the contact object physically touch the touch panel 21.
  • the touch panel 21 is an optical type, the touch panel 21 detects a position where infrared rays on the touch panel 21 are blocked by the contact object, and thus it is not necessary for the contact object to touch the touch panel 21.
  • the display unit 60 described above displays an object such as a push button switch (push button switch) such as a key as an image.
  • This object is an image that suggests to the operator an area to be touched on the operation area 21 a of the touch panel 21.
  • the push button switch is a button, key, or the like (hereinafter, simply referred to as “key, etc.”) used by an operator for input operation.
  • the display unit 60 is configured using, for example, a liquid crystal display panel (LCD), an organic EL display panel, or the like. In the present specification, detailed description of display-related matters is omitted.
  • the elastic member 30 has a frame shape that has substantially the same outer shape as the touch panel 21, and a plurality of through holes 30 a that penetrate the front and back surfaces of the elastic member 30 are provided on each side of the frame. Is provided.
  • the through hole 30a is rectangular, but it may be circular or elliptical, and the shape can be selected as appropriate.
  • three through holes 30a are provided along the short-side edge 21b of the touch panel 21 and four through-holes 30c are provided along the long-side edge 21c. It can be selected as appropriate.
  • the elastic member 30 is required to have a certain degree of elasticity without allowing water to permeate. Examples of such an elastic member include silicone rubber.
  • the heat shrink member 31 is filled in each through hole 30 a of the elastic member 30.
  • heat-shrinkable member means a member that has a physical property that shrinks when heat is applied and has a volume after heating that is less than the volume before heating.
  • Examples of such materials include radiation-crosslinked polyolefin, radiation-crosslinked vinylidene, radiation-crosslinked flexible fluoropolymer, radiation-crosslinked fluorinated elastomer, radiation-crosslinked elastomer, two-layer structure radiation-crosslinked polyolefin, electron beam-crosslinked polyolefin, elastic neoprene, Examples include fluoroplastic Teflon and polytetrafluoroethylene.
  • the adhesive member 41 has a frame shape substantially the same shape as the elastic member 30 as shown in FIG.
  • the adhesive member 41 is a waterproof double-sided adhesive member, such as a waterproof tape, and examples thereof include Sekisui Chemical Co., Ltd. foam tape (# 5202WP).
  • the adhesive member 41 when the adhesive member 41 is attached to the elastic member 30 in which nothing is filled in the through-hole 30a, the adhesive member 41 may enter the through-hole 30a, and the adhesive members 41 that have entered are stuck together. Wrinkles may occur. For this reason, there is a concern that the touch panel 21 and the elastic member 30 cannot be sufficiently bonded to each other, so that necessary adhesive strength cannot be obtained, or water enters from the gap between the bonding members 41.
  • the adhesive member 41 by adhering the adhesive member 41 in a state where the heat shrinkable member 31 is filled in the through hole 30a, the adhesive member 41 enters the through hole 30a and wrinkles of the adhesive member 41 occur. Hateful. Thereby, since the touch panel 21, the elastic member 30, and the lower housing
  • the electronic apparatus 1 configured as described above has the heating environment after the elastic member 30, the touch panel 21, and the lower housing 12 filled with the heat shrinkable member 31 are coupled by the adhesive member 41.
  • the heat contraction member 31 in the through hole 30a is contracted below.
  • a gap is formed in the through hole 30a, and the outer peripheral portion of the touch panel 21 can be partially supported by the elastic member 30.
  • the heating conditions are selected according to the physical properties of the heat shrinkable member 31.
  • FIG. 6 is a plan view of the electronic apparatus 1 shown in FIG. 1 with the upper housing 11 removed
  • FIG. 7A is a cross-sectional view taken along the line BB of FIG. It is a figure which shows the state filled with the sublimation member instead of the heat contraction member with which the through-hole of this is filled.
  • the heat shrinkable member 31 is replaced with the sublimation member 32 and the adhesive member 41 is replaced with the adhesive member 42 with respect to the above-described embodiment. Since it is common, description is abbreviate
  • the sublimation member 32 is filled in each through-hole 30a of the elastic member 30 as shown in FIGS.
  • the “sublimation member” means a member having physical properties that change (sublimate) from a solid to a gas. Examples of such materials include dry ice, iodine, naphthalene, oxalic acid, paradichlorobenzene, salicylic acid, terephthalic acid, and the like.
  • the adhesive member 42 has a frame shape that is substantially the same shape as the elastic member 30 as shown in FIG.
  • the adhesive member 42 is a double-sided adhesive member having waterproofness and gas permeability, for example, a waterproof tape.
  • the above-mentioned foam tape (# 5202WP) of Sekisui Chemical Co., Ltd. has gas permeability to various substances in addition to waterproofness, so it should be used in other embodiments of the present invention. Can do.
  • the gas permeability of the adhesive member 42 is selected so as to allow the sublimation member 32 to pass therethrough according to the sublimation member 32 employed.
  • the adhesive member 42 is less likely to enter the through hole 30a and wrinkle, and the risk of peeling of the touch panel 21 can be reduced.
  • a sufficient dustproof and waterproof effect for the circuit board 50 and the display unit 60 can be obtained.
  • the sublimation member 32 in the through hole 30a is sublimated in a sublimation environment, and is released to the outside through the adhesive member.
  • the sublimation environment means that at least one of the pressure and the temperature is changed in accordance with the condition under which the selected sublimation member 32 is sublimated.
  • the solid sublimation member 32 does not remain in the through hole 30a as shown in FIG. 7B, and the outer peripheral portion of the touch panel 21 can be partially supported by the elastic member 30, so that the bending vibration In this case, a sufficient amplitude can be obtained.
  • the number of vibration units 22 is not limited to two, and can be any number according to the amplitude of the required bending vibration.
  • what is filled in the through hole 30a is not limited to the heat shrinkable member 31 and the sublimation member 32 described above, and the volume decreases when the phase transitions from a solid to a liquid, and the electronic device 1 is normally used at room temperature.
  • a substance that maintains a liquid state for example, water
  • the volume remains reduced at room temperature due to changes in environmental conditions (temperature, pressure, etc.) and changes over time (for example, substances that change when left in a few days).
  • a substance can be selected.
  • the lower housing 12 described above constitutes a “support member”, and the support member does not include a display portion such as a display, a substrate constituting a control portion, or the like.
  • the “support member” is not limited to the lower housing 12, and various members such as the display unit 60 and the circuit board 50 can be used as the support members.
  • the present invention is characterized by the elastic member 30, the heat shrink member 31, the sublimation member 32, and the adhesive members 41 and 42, and the other constituent elements other than those described in the present specification.
  • various configurations can be adopted.
  • positioned on the back side of the touch panel 21, and the touch panel 21 detects an operator's contact was demonstrated.
  • the present invention is not limited to such a mode, and for example, a mode in which the object is directly printed with ink or the like on the operation area 21a of the touch panel without the display unit 60 is assumed. You can also.
  • region 21a of the said touch panel 21 was detected using the touch panel 21.
  • the “touch panel 21” has been described assuming a member such as a so-called touch sensor.
  • the touch panel used in the electronic device according to the present invention may be any as long as it can be touched by a contact object such as an operator's finger or a stylus pen.
  • the touch panel used in the electronic device according to the present invention may be a member such as a simple “panel” that does not detect the position of contact of the contact object with the touch surface (that is, does not have a sensing function).
  • the electronic device having such a configuration for example, it is possible to determine that contact with the touch panel has been made based on the pressure detected by the pressure detection unit by further providing a pressure detection unit that detects pressure on the touch panel. it can.
  • a touch panel is used to detect contact with the touch surface of the touch panel.
  • the touch detection unit detects a press on the touch panel and that the touch is made on the touch panel based on the press.
  • the above-described press detection unit detects a press on the touch surface of the touch panel.
  • a strain gauge sensor or a piezoelectric that changes physical or electrical characteristics (strain, resistance, voltage, etc.) according to the press.
  • An arbitrary number of elements can be used.
  • the vibration unit is a piezoelectric element
  • the piezoelectric element can also be used as a press detection unit.
  • the piezoelectric element of the pressure detection unit is a load (force) magnitude (or magnitude of the load (force) related to the pressure on the touch surface of the touch panel.
  • the voltage magnitude (voltage value) which is an electrical characteristic, changes according to the speed (acceleration) at which the voltage changes.
  • the pressure detection unit can notify the control unit of the magnitude of the voltage (voltage value (hereinafter simply referred to as data)).
  • the control unit acquires the data when the press detection unit notifies the control unit of the data, or when the control unit detects data related to the piezoelectric element of the press detection unit.
  • a control part acquires the data based on the press with respect to the touch surface of a touchscreen. That is, a control part acquires the data based on a press from a press detection part. Then, when the data based on the press satisfies a predetermined standard, the control unit can determine that contact has been made and generate a predetermined vibration.
  • the predetermined reference can be set as appropriate according to the load characteristic when the push button switch is to be expressed.
  • such a pressure detection unit can be configured according to a contact detection method on the touch panel.
  • a strain gauge sensor, a piezoelectric element, or the like is used by associating the magnitude of the resistance corresponding to the size of the contact area with the pressing load (force) on the touch surface of the touch panel. It can be configured without.
  • the capacitance can be configured without using a strain gauge sensor or a piezoelectric element by associating the size of the capacitance with a load (force) of pressing against the touch surface of the touch panel. it can.
  • Such a pressure detection unit can assume various configurations according to a contact detection method on the touch panel.
  • a strain gauge sensor, a piezoelectric element, or the like is used by associating the magnitude of the resistance corresponding to the size of the contact area with the pressing load (force) on the touch surface of the touch panel. It can be configured without.
  • the capacitance can be configured without using a strain gauge sensor or a piezoelectric element by associating the size of the capacitance with a load (force) of pressing against the touch surface of the touch panel. it can.
  • the vibration unit is configured by using an arbitrary number of piezoelectric vibrators, is configured by providing a transparent piezoelectric element on the entire surface of the touch panel, or configured to rotate the eccentric motor once in one cycle of the drive signal. You can also do it.
  • the pressure detection unit and the vibration unit are configured using a piezoelectric element
  • the pressure detection unit and the vibration unit may be configured by sharing the piezoelectric element. This is because the piezoelectric element generates a voltage when pressure is applied and deforms when the voltage is applied.
  • the vibration unit drives the piezoelectric element to generate vibration. It can also be generated.
  • the voltage value (data) may reach a predetermined reference value, It may be when the value (data) exceeds a predetermined reference value or when a voltage value (data) equal to the predetermined reference value is detected.
  • the electronic apparatus according to the present invention does not necessarily have such a configuration, and the touch panel and the display unit can be separated from each other.
  • the configuration in which the touch panel is arranged so as to overlap the upper surface of the display unit allows the operator to easily recognize the correspondence between the displayed image, the region where the operation input is detected, and the generated vibration. Can do.
  • the display unit and the touch panel in the description of the present embodiment may be configured by an integrated device, for example, by providing both functions of the display unit and the contact detection unit on a common substrate.
  • a plurality of photoelectric conversion elements such as photodiodes are regularly arranged in a matrix electrode array of pixel electrodes included in the liquid crystal panel.
  • This device displays an image with a liquid crystal panel structure, while reflecting the light of a backlight for liquid crystal display at the tip of a pen that touches and inputs a desired position on the surface of the panel. The reflected light is reflected by peripheral photoelectric conversion elements.
  • the touch position can be detected by receiving the light.
  • the vibration unit 22 may be configured to indirectly vibrate the touch panel by vibrating the electronic device based on a vibration motor (eccentric motor) or the like.
  • a vibration motor eccentric motor
  • the through-hole 30a which penetrates the back surface of the elastic member 30 as a hole of the elastic member 30 was demonstrated.
  • the present invention is not limited to such an embodiment, and the hole of the elastic member is a groove that is concave from one surface to the other surface without penetrating the elastic member 30 to the end. There may be.
  • a mobile phone terminal that includes a touch panel having a sensing function and feeds back a feeling of operation has been described.
  • the present invention is not limited to this.
  • an electronic apparatus according to the third embodiment of the present invention will be described.
  • the electronic device generates vibration on a panel by applying an electrical signal corresponding to a predetermined audio signal to a piezoelectric element attached to a panel such as a touch panel or a cover panel that protects a display unit.
  • a panel such as a touch panel or a cover panel that protects a display unit.
  • It may be an electronic device.
  • Such an electronic device can transmit sound to the user even when a part of the user's body (for example, cartilage of the outer ear) is brought into contact with the vibrated panel.
  • the cellular phone 100 described below is given as an example of the electronic apparatus according to the third embodiment of the present invention, and is not limited to the configuration shown in the figure.
  • the configuration of the mobile phone 100 can be appropriately changed within a range that does not hinder the application of the present invention.
  • FIG. 8 is a view showing an elastic member 160 arranged in an electronic apparatus according to the third embodiment of the present invention.
  • the elastic member 160 is a frame-like member having substantially the same outer shape as the panel 120, like the elastic member 30 shown in FIG.
  • a plurality of through holes 160 a penetrating the front and back surfaces of the elastic member 160 are formed on each side of the frame.
  • the through-hole 160a is rectangular, but it may be circular or elliptical, and the shape can be changed as appropriate.
  • the number of through holes 160a formed in the elastic member 160 is not limited to the number shown in FIG.
  • the elastic member 160 is formed of a waterproof material, for example, silicone rubber, as in the first embodiment.
  • the heat shrink member 161 is filled in the through hole 160 a formed in the elastic member 160.
  • FIG. 9 is a view showing an adhesive member 170 arranged in an electronic apparatus according to the third embodiment of the present invention.
  • the adhesive member 170 is a frame-like member having substantially the same outer shape as the panel 120, like the adhesive member 41 shown in FIG.
  • the adhesive member 170 has substantially the same shape as the elastic member. Similar to the adhesive member 41, the adhesive member 170 is, for example, a double-sided tape having waterproofness.
  • FIG. 10 is a diagram showing an electronic apparatus according to the third embodiment of the present invention.
  • 10A is a front view
  • FIG. 10B is a cross-sectional view taken along the line bb in FIG. 10A.
  • FIG. 10A is a plan view of the casing 110 excluding the upper casing 110a, as in FIG.
  • a mobile phone 100 as an electronic apparatus includes a housing 110, a panel 120, a display unit 130, a piezoelectric element 140, a joining member 150, an elastic member.
  • a member 160 and an adhesive member 170 are provided.
  • the piezoelectric element 140 is bonded to the panel 120 with a bonding member 150.
  • the panel 120 is supported by the elastic member 160 with respect to the lower housing 110b.
  • the panel 120 and the elastic member 160 are bonded by an adhesive member 170.
  • the elastic member 160 and the lower housing 110b are bonded by the bonding member 170.
  • Panel 120, display unit 130, and piezoelectric element 140 are each substantially rectangular.
  • the contact area of the piezoelectric element 140 with the bonding member 150 may be substantially the entire main surface on one side of the piezoelectric element.
  • vibrations in the piezoelectric element 140 are efficiently transmitted to the panel 120 and the panel 120 is brought into contact with the human body.
  • the panel 120 can be curved and vibrated with sufficient strength so as not to be attenuated.
  • the display unit 130 is disposed substantially at the center of the panel 120 in the short direction.
  • the piezoelectric element 140 is disposed at a predetermined distance from an end portion in the longitudinal direction of the panel 120, and is disposed in the vicinity of the end portion so that the longitudinal direction of the piezoelectric element 140 is along the short side of the panel 120.
  • the display unit 130 and the piezoelectric element 140 are arranged side by side in a direction parallel to the inner surface of the panel 120. For example, when the panel 120 and the display unit 130 are configured not to overlap each other, the piezoelectric element 140 may be disposed at the center of the panel 120.
  • the piezoelectric element 140 When the piezoelectric element 140 is disposed at the center of the panel 120, the vibration of the piezoelectric element 140 is evenly transmitted to the entire panel 120, and even when the user touches the ear to various positions of the panel 120, the voice is recognized. be able to. Similar to the above-described embodiment, a plurality of piezoelectric elements may be mounted.
  • the casing 110 has an upper casing 110a and a lower casing 110b.
  • the hard part 110a is made of a material such as resin, for example.
  • the panel 120 detects contact of a finger, a pen, a stylus pen, or the like with respect to the touch panel.
  • the touch panel detection method may be any method such as a capacitance method, a resistance film method, a surface acoustic wave method (or an ultrasonic method), an infrared method, an electromagnetic induction method, and a load detection method.
  • the panel 120 may be a protective panel for protecting the display unit 130.
  • the material of the panel 120 is made of, for example, glass or synthetic resin, and may be a plate-like body.
  • the display unit 130 is a display device such as a liquid crystal display, an organic EL display, or an inorganic EL display.
  • the piezoelectric element 140 is an element that expands and contracts according to the electromechanical coupling coefficient of the constituent material when a voltage is applied.
  • the piezoelectric element 140 may be a unimorph, bimorph, or multilayer piezoelectric element.
  • the stacked piezoelectric element includes a stacked bimorph element in which bimorphs are stacked (for example, 16 layers or 24 layers are stacked).
  • a laminated piezoelectric element it is composed of a laminated structure of a plurality of dielectric layers made of, for example, PZT (lead zirconate titanate) and electrode layers arranged between the dielectric layers.
  • the bonding member 150 is an adhesive or double-sided tape having thermosetting property or ultraviolet curable property.
  • an optical elastic resin which is a colorless and transparent acrylic ultraviolet curable adhesive may be used.
  • the first elastic member 160 is made of a flexible material such as PET (polyethylene terephthalate) and is sufficiently thin so that it can be slightly expanded and contracted.
  • the first elastic member 160 has a frame shape, and is continuously or intermittently attached to the bottom surface of the panel 120 over the entire circumference of the outer edge of the bottom surface of the panel 120.
  • the elastic member 160 is a frame-shaped member having substantially the same outer shape as the panel 120.
  • a through hole 160a is formed in each frame side of the elastic member 160 as in the first embodiment.
  • the through-hole 160a of the elastic member 160 is filled with a heat shrink member 161.
  • the adhesive member 170 is a frame-shaped member that is substantially the same shape as the elastic member 160.
  • the adhesive member 170 is a double-sided tape having waterproofness, for example.
  • the adhesive member 170 is provided between the surface of the panel 120 inside the housing and the elastic member 160, and between the elastic member 160 and the lower housing 110b.
  • the panel 120 is supported by the elastic member 160 with respect to the lower casing 110b.
  • the panel 120 and the elastic member 160 are bonded by an adhesive member 170.
  • the elastic member 160 and the lower housing 110b are bonded by the bonding member 170.
  • the outer peripheral portion of the panel 120 is fixed to the lower casing 110b by the elastic member 160 and the adhesive member 170, both having waterproofness.
  • the waterproofness and dustproofness of the mobile phone 100 are improved. Furthermore, this configuration makes it difficult for the panel 120 to attenuate vibrations.
  • the adhesive member 170 does not enter the through-hole 160a and the wrinkle of the adhesive member 170 does not easily occur.
  • the cellular phone 100 having the above configuration can transmit sound to the user even if a part of the user's body comes into contact with the panel 120 that vibrates due to the expansion and contraction of the piezoelectric element 140.
  • the piezoelectric element 140 expands and contracts (curves) in the longitudinal direction based on, for example, an electric signal output from a control unit (not shown). Since the piezoelectric element 140 is attached to the panel 120 by the bonding member 150, the panel 120 vibrates as the piezoelectric element 140 expands and contracts. The panel 120 vibrates not only in the attachment region to which the piezoelectric element 140 is attached, but also in a region away from the attachment region. At a certain moment, the panel 120 vibrates in such a manner that a portion having a relatively large vibration amplitude and a portion having a relatively small vibration amplitude are randomly distributed throughout the panel. That is, vibrations of a plurality of waves are detected over the entire panel.
  • the mobile phone 100 generates a vibration in a panel such as a cover panel that protects the touch panel or the display unit by applying a predetermined electrical signal (audio signal) to the piezoelectric element, and is used for the panel that has been vibrated.
  • a sound can be transmitted to the user by contacting a part of the person's body (for example, cartilage of the outer ear).
  • the output sound from the panel of the mobile phone 100 is the voice of the other party, the incoming melody or music including music.
  • the music may be played based on music data stored in an internal memory, or music data stored in an external server or the like may be played back via a network.
  • the amplifier may be controlled to amplify only the low sound range.
  • a dynamic speaker may be provided separately.
  • the sound outlet of the dynamic speaker may be closed by a waterproof sheet that allows gas to pass but not liquid, such as Gore-Tex (trademark).
  • Piezoelectric element vibrates not only the attachment area of the panel where the piezoelectric element is attached, but also the area away from the attachment area of the panel. Therefore, the user can hear the sound by touching the ear to an arbitrary position on the panel.
  • the user can connect an electronic device including a panel having a panel approximately the same size as the user's ear or larger than the user's ear. By making contact so that the entirety is covered, it is possible to hear the sound output from the electronic device while reducing ambient sound (noise) from entering the ear canal.
  • the panel may oscillate in a region wider than a region having a length corresponding to the distance from the earring to the tragus and the antitragus and a width corresponding to the distance from the earring leg to the antitragus.
  • the average ear size can be found, for example, by referring to the Japanese human body size database (1992-1994) created by the Human Life Engineering Research Center (HQL). In general, if a panel is made with the size of Japanese ears as a guide, it can be applied to foreigners.
  • the mobile phone 100 described above can transmit sound to the user by vibration through a part of the user's body (for example, cartilage of the outer ear). There is little sound transmitted to. Therefore, it is suitable for listening to a recorded message on a train or the like.
  • the mobile phone 100 transmits sound by the vibration of the panel 120, for example, even if the user wears an earphone or a headphone, the user can contact the electronic device with the earphone or the headphone. You can hear sound through your body part.
  • the display unit 130 and the piezoelectric element 140 are arranged side by side in a direction parallel to the inner surface of the panel 120. Since the display unit 130 is attached to the panel 120, the rigidity of the lower part of the panel 120 (lower side in FIG. 10) is increased, and the vibration of the upper part of the panel 120 to which the piezoelectric element 140 is attached (upper side in FIG. 10). Can be vibrated greatly as compared with the lower part of the panel 120. Therefore, it is possible to efficiently transmit the vibration of the panel 120 to the user.
  • the voltage applied to the piezoelectric element is higher than the voltage applied to the piezoelectric element mounted on a normal so-called panel speaker. Should be set higher.
  • the support structure for the panel housing is greatly different.
  • the panel speaker disclosed in Japanese Patent Publication No. 2010-1114866, the panel itself is not greatly deformed, and the entire panel is moved in parallel in the thickness direction of the panel. It is supported on the housing at both ends in the direction by a film-like member, a stretchable rubber member, a spring member, or the like.
  • the mobile phone 100 has a structure in which the entire outer periphery of the panel 120 is supported by the casing 110 by the elastic member 160 and the adhesive member 170. That is, the panel 120 of the mobile phone 100 is firmly fixed to the housing as compared with the panel speaker panel described in the above document. That is, the elastic member 160 and the adhesive member 170 that support the entire circumference of the panel 120 are appropriately selected from materials that do not cause the panel 120 to vibrate in the same manner as the panel of the so-called panel speaker (parallel movement of the entire panel). .
  • the adhesive member 170 may be, for example, a foam tape (# 5202WP) manufactured by Sekisui Chemical Co., Ltd.
  • the mobile phone 100 has been described above, but the mobile phone 100 is not limited to the above-described configuration, and various changes can be made regarding the configuration. It is a figure which shows the modification of the electronic device which concerns on the 3rd Embodiment of this invention.
  • FIG. 11 is a cross-sectional view seen from the same direction as FIG.
  • an intermediate member 180 may be disposed between the piezoelectric element 140 and the panel 120.
  • the piezoelectric element 140 and the intermediate member 180 may be bonded by the bonding member 150
  • the intermediate member 180 and the panel 120 may be bonded by the bonding member 150.
  • the joining member 150 may be the above-described various adhesives or double-sided tape.
  • the intermediate member 180 is, for example, a resin plate, a sheet metal, or a resin plate including glass fiber.
  • the piezoelectric element is attached to the panel, but may be attached to a location different from the panel.
  • the piezoelectric element may be attached to a battery lid that is attached to the housing and covers the battery. Since the battery lid is often attached to a surface different from the panel in the mobile phone, according to such a configuration, the user listens to the sound by touching a part of the body (for example, an ear) to a surface different from the panel. Can do.
  • Electronic devices that transmit sound to the user through a part of the user's body are conducted through the part of the user's body that contacts the vibrating panel. It is also possible to transmit to the user both the sound to be heard (human body conduction sound) and the vibration of the air in the vicinity of the panel (air conduction sound) caused by the vibration of the panel.

Abstract

L'invention porte sur un appareil électronique, qui comporte un panneau qui configure l'aspect de celui-ci, et qui fait vibrer le panneau, et qui sert à empêcher de permettre que la vibration du panneau soit gênée, et à améliorer les propriétés anti-poussière et d'étanchéité à l'eau. L'appareil électronique comporte un panneau tactile (21), une partie vibrante (22) pour provoquer une vibration de flexion du panneau tactile (21), et un boîtier inférieur (élément de support) (12) pour supporter le panneau tactile (21) à l'aide d'éléments élastiques en forme de cadre (30). Les éléments élastiques (30) ont des trous (30a) et ont des éléments thermo-rétractables (31) qui remplissent les trous (30a). Entre le panneau tactile (21) et les éléments élastiques (30), et entre les éléments élastiques (30) et l'élément de support (12), des éléments d'attachement (41) possédant une étanchéité à l'eau sont disposés.
PCT/JP2012/001426 2011-03-02 2012-03-01 Appareil électronique et procédé de fabrication pour appareil électronique WO2012117738A1 (fr)

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CN107562244A (zh) * 2016-07-01 2018-01-09 南昌欧菲光科技有限公司 压力感应触摸装置及具有其的终端设备
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