Abstract: An electronic apparatus (100) includes a first detachable speaker unit (120) including a first speaker having a relatively high directivity, and a second detachable speaker unit (130) including a second speaker having a relatively low directivity. The electronic apparatus (100) further includes a body unit (an electronic apparatus body (110)) provided with a slot (113) in which any one of the first detachable speaker unit (120) and the second detachable speaker unit (130) is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

Abstract: An oscillation device (electro-acoustic transducer (100)) includes an oscillation element (110) that has a vibrating member (120) and a piezoelectric element (111) that is attached to one surface of the vibrating member (120). The oscillation device includes a sheet-shaped waterproof member (140) that is constituted by a waterproof material. The oscillation device includes a frame-shaped supporting member (130) that holds an outer peripheral portion of the vibrating member (120) and an outer peripheral portion of the waterproof member (140) so that the waterproof member (140) and the oscillation element (110) face each other. The oscillation device includes a connection member (150) that partially connects mutual opposed surfaces of the oscillation element (110) and the waterproof member (140).

Abstract: In an electro-acoustic transducer 100 which is an oscillator device, center positions of principal surfaces of piezoelectric elements 130 that are positioned on both surfaces of an elastic member 120 are different from each other. As such, since the two piezoelectric elements 130 are disposed asymmetrically on the upper and lower sides in the electro-acoustic transducer 100, it is possible to prevent vibrations of reversed phases at the time of divided vibration in which the reversed phases overlap with each other. In other words, since it is possible to prevent the generation of sound waves due to the vibration of local reversed phases, the sound pressure level can be improved.

Abstract: Provided is an oscillator (100) including a piezoelectric body (70) that has a plurality of protrusions (72) on one surface thereof, a plurality of electrodes (80) that are respectively provided on the plurality of protrusions (72) so as to be separated from each other, and a plurality of electrodes (82) that are provided on the other surface opposite to the one surface of the piezoelectric body (70) so that each of the electrodes faces only one electrode (80). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.

Abstract: An input device of the present invention includes: a detector that detects a position at which an input means touches or approaches a touch surface; a vibration generator that vibrates the touch surface; and a controller that controls intensity of vibration of the vibration generator in accordance with the detected position by the detector, at which the input means touches or approaches the touch surface.

Abstract: An oscillator includes a piezoelectric vibrator (10), a vibrating member (20) which is larger than the piezoelectric vibrator (10) when seen in a plan view and restrains one surface of the piezoelectric vibrator (10), a vibrating member (25) which is larger than the piezoelectric vibrator (10) when seen in a plan view and restrains the other surface of the piezoelectric vibrator (10), an elastic member (30) which supports an edge of the surface of the vibrating member (20), which restrains the piezoelectric vibrator (10), and supports an edge of the surface of the vibrating member (25), which restrains the piezoelectric vibrator (10), and a supporting member (35) which is located around the elastic member (30) and supports the elastic member (30).

Abstract: Provided is an oscillator including a piezoelectric vibrator (10), a vibration member (20) that constrains the piezoelectric vibrator (10) on one surface thereof, an elastic member (40) that is provided on one surface of the vibration member (20) or the other surface opposite to one surface and provided so as to be located between edges of the piezoelectric vibrator (10) and the vibration member (20) when seen in a plan view, a fixing member (42) that is provided on one surface or the other surface of the vibration member (20) and provided so as to be located between the piezoelectric vibrator (10) and the elastic member (40) when seen in a plan view, and a supporting member (30) that supports the vibration member (20) through the elastic member (40) and the fixing member (42).

Abstract: In an oscillator (100), a plurality of piezoelectric vibrators (111 to 113) supported by vibrator support mechanisms (120) individually output highly directional sound waves. The plurality of piezoelectric vibrators (111 to 113) is formed by dividing a laminated body of an elastic member and a piezoelectric substance by the vibrator support mechanisms (120). Since it is not necessary to arrange the plurality of piezoelectric vibrators in a matrix, the entirety of a device can be small-sized. A sound deflection unit that deflects a sound wave which is output by at least one of the piezoelectric vibrators may be further included.

Abstract: An oscillation device (100) includes a piezoelectric element (121), a vibrating member (122) which binds one surface of the piezoelectric element (121) and is formed of a metal material, a resin member (123) which holds an outer circumferential portion of the vibrating member (122), a piezoelectric element (111), a vibrating member (122) which binds one surface of the piezoelectric element (111), is overlapped with the vibrating member (121) and the resin member (123) when seen in a plan view, and is formed of a metal material, and a support member (140) which supports the resin member (123) and the vibrating member (112), wherein at least one opening (150), which connects a space (170) positioned between the vibrating member (121) and the resin member (123), and the vibrating member (122) to the outside of the space (170), is provided in at least one of the vibrating member (121), the resin member (123), and the vibrating member (112).

Abstract: A piezoelectric actuator comprises: a piezoelectric ceramic vibrator (2) which vibrates when a voltage is applied to electrodes; a first holder (3) which is joined to a panel (502) and supports one end portion of the piezoelectric ceramic vibrator (2); and a second holder (4) which is joined to the panel (502) and supports the other end portion of the piezoelectric ceramic vibrator (2). The vibrations generated in the piezoelectric ceramic vibrator (2) are transmitted to the panel (502) via the one end portion of the piezoelectric ceramic vibrator (2) and the first holder (3), and the relative movements of the other end portion of the piezoelectric ceramic vibrator (2) in the lengthwise and crosswise directions with respect to the panel (502) are constrained by the second holder (4).

Abstract: Provided is an oscillator including a piezoelectric vibrator (10), a vibration member (20) that constrains the piezoelectric vibrator (10) on one surface thereof, an elastic member (40) that is provided on one surface of the vibration member (20) or the other surface opposite to one surface and provided so as to be located between edges of the piezoelectric vibrator (10) and the vibration member (20) when seen in a plan view, a fixing member (42) that is provided on one surface or the other surface of the vibration member (20) and provided so as to be located between the piezoelectric vibrator (10) and the elastic member (40) when seen in a plan view, and a supporting member (30) that supports the vibration member (20) through the elastic member (40) and the fixing member (42).

Abstract: A piezoelectric element (20) is attached to a vibration member (10). A plurality of electrodes (22) are two-dimensionally arranged on one surface of the piezoelectric element (20) so as to be spaced apart from each other. A supporting frame (40) supports an edge of the vibration member (10). A control unit (50) inputs an independent driving signal to each of the plurality of electrodes (22). Thus, a large output can be obtained with a resonance frequency depending on what signal is input to which electrode (22). For example, the piezoelectric element (20) is a resin film that is formed of a high molecular material indicating a piezoelectric property.

Abstract: Provided is an oscillator (100) including a piezoelectric body (70) that has a plurality of protrusions (72) on one surface thereof, a plurality of electrodes (80) that are respectively provided on the plurality of protrusions (72) so as to be separated from each other, and a plurality of electrodes (82) that are provided on the other surface opposite to the one surface of the piezoelectric body (70) so that each of the electrodes faces only one electrode (80). Thus, it is possible to prevent variation in acoustic characteristics from occurring. Therefore, the oscillator capable of improving the acoustic characteristics of an electronic device is provided.

Abstract: An oscillation device (electro-acoustic transducer (100)) includes an oscillation element (110) that has a vibrating member (120) and a piezoelectric element (111) that is attached to one surface of the vibrating member (120). The oscillation device includes a sheet-shaped waterproof member (140) that is constituted by a waterproof material. The oscillation device includes a frame-shaped supporting member (130) that holds an outer peripheral portion of the vibrating member (120) and an outer peripheral portion of the waterproof member (140) so that the waterproof member (140) and the oscillation element (110) face each other. The oscillation device includes a connection member (150) that partially connects mutual opposed surfaces of the oscillation element (110) and the waterproof member (140).

Abstract: An electronic apparatus (100) includes a first detachable speaker unit (120) including a first speaker having a relatively high directivity, and a second detachable speaker unit (130) including a second speaker having a relatively low directivity. The electronic apparatus (100) further includes a body unit (an electronic apparatus body (110)) provided with a slot (113) in which any one of the first detachable speaker unit (120) and the second detachable speaker unit (130) is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

Abstract: In an electro-acoustic transducer 100 which is an oscillator device, a flat piezoelectric film 120 that moves expansively and contractively through the application of an electric field is disposed on at least one surface of a flat elastic member 110 in which a plurality of holes 111 penetrate a principal surface thereof. Since the stiffness of the elastic member 110 is adjusted by the holes 111, the stiffness impedance with respect to the piezoelectric film 120 can be matched optimally. Thus, it is possible to suppress the amount of vibration displacement and to complement the conversion efficiency of the piezoelectric film 120.

Abstract: Each of piezoelectric vibrators 110 includes an elastic member 112 and a piezoelectric element 111. The piezoelectric element 111 is attached to the elastic member 112. A supporting member 120 has an opening. A plurality of the piezoelectric vibrators 110 are arranged in the opening along a first direction. It is preferable that the plurality of piezoelectric vibrators 110 have the same fundamental resonance frequency. In addition, it is preferable that an arrangement pitch of the piezoelectric vibrators 110 is equal to or less than half the wavelength of the fundamental resonance frequency.

Abstract: An oscillation device includes a first oscillator (120), a second oscillator (112), and a control unit (50). The first oscillator (120) includes a first piezoelectric vibrator, and the second oscillator (112) includes a second piezoelectric vibrator. The control unit (50) inputs an audio signal of an audible sound to the first piezoelectric vibrator included in the first oscillator (120), and inputs a modulation signal of a parametric speaker to the second piezoelectric vibrator included in the second oscillator (112).

Abstract: In an electro-acoustic transducer 100 which is an oscillator device, center positions of principal surfaces of piezoelectric elements 130 that are positioned on both surfaces of an elastic member 120 are different from each other. As such, since the two piezoelectric elements 130 are disposed asymmetrically on the upper and lower sides in the electro-acoustic transducer 100, it is possible to prevent vibrations of reversed phases at the time of divided vibration in which the reversed phases overlap with each other. In other words, since it is possible to prevent the generation of sound waves due to the vibration of local reversed phases, the sound pressure level can be improved.

Abstract: Luminance levels of a backlight 3 corresponding to gradations of a display image are registered as reference luminance values to a table 5a, signal levels of a drive signal to an LED driver 4 corresponding to reference luminance values are registered as luminance setting values to a table 6a, and values to correct a drive level of a liquid-crystal panel corresponding to gradations of the display image are registered as gamma correction values to a table 7a. According to the gradation of an image to be displayed, a signal level of the drive signal corresponding to the reference luminance value attained from the table 5a is obtained from the table 6a, to thereby drive the LED driver 4; and an LCD driver 2 is driven by a value obtained through correction by the gamma correction value obtained from the table 7a, to thereby display an image.