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161. 发明公开

US20240329743A1 DISPLAY DEVICE AND ELECTRONIC DEVICE 审中-公开
公开(公告)号：US20240329743A1
公开(公告)日：2024-10-03
申请号：US18580398
申请日：2022-06-28
申请人： Taiyo Yuden Co., Ltd.
发明人： Fumihisa ITO , Yukihiro MATSUI
IPC分类号： G06F3/01 , G06F3/044 , H10N30/20 , H10N39/00
CPC分类号： G06F3/016 , H10N30/20 , H10N39/00 , G06F3/044
摘要： [Object]
To provide a display device and an electronic device each capable of implementing both a force feedback function and a tactile function and having high strength.
[Solving Means]
A display device according to the present invention includes a display panel, a touch panel, a spacer, a tactile panel, and a piezoelectric actuator. The touch panel is placed on the display panel and has a first principal surface on the display panel side and a second principal surface on the side opposite to the first principal surface. The tactile panel is placed on the spacer and has a third principal surface facing the second principal surface with a gap between the third and second principal surfaces and a fourth principal surface on the side opposite to the third principal surface. The piezoelectric actuator is placed on the third principal surface and causes vibration. When a first thickness is defined as the thickness from the second principal surface to the fourth principal surface and a second thickness is defined as the thickness from the second principal surface to the third principal surface, the first thickness is 0.5 to 1.5 mm, is equal to or larger than the thickness obtained by adding 0.3 mm to the second thickness, and is equal to or smaller than the thickness obtained by adding 1 mm to the second thickness.

162. 发明公开

US20240316928A1 PIEZOELECTRIC ACTUATOR, LIQUID DISCHARGE HEAD, AND LIQUID DISCHARGE APPARATUS 审中-公开
公开(公告)号：US20240316928A1
公开(公告)日：2024-09-26
申请号：US18605948
申请日：2024-03-15
申请人： Keishi Miwa
发明人： Keishi Miwa
IPC分类号： B41J2/14 , H10N30/20 , H10N30/87
CPC分类号： B41J2/14233 , H10N30/2047 , H10N30/87 , H10N30/877 , B41J2002/14258
摘要： A piezoelectric actuator includes: a substrate having an opening; a diaphragm: having a first face on one face of the substrate; and facing the opening; and a piezoelectric element including: a lower electrode; a piezoelectric body; and an upper electrode, and the lower electrode, the piezoelectric body, and the upper electrode being sequentially laminated on a second face opposite to the first face of the diaphragm in a lamination direction, wherein the lower electrode includes: a first lower electrode extending in a first direction; and multiple second lower electrodes: each extending in the first direction; on each of both sides of the first lower electrode in a second direction orthogonal to the first direction; and separated from the first lower electrode in the second direction, and the piezoelectric body is interior of both ends of the opening in the second direction.

163. 发明授权

US12101600B2 Vibration apparatus and apparatus and vehicular apparatus comprising the same 有权
公开(公告)号：US12101600B2
公开(公告)日：2024-09-24
申请号：US17845444
申请日：2022-06-21
申请人： LG Display Co., Ltd.
发明人： Sungwook Ko , Kyungyeol Ryu , Taehyung Kim , MinHo Sohn , SeulKi Nam , Jeonggoo Kang , JunSeok Oh , SeungRyull Park , Chiwan Kim , GyungBo Ha , Uihyeon Jeong
IPC分类号： H04R17/00 , H04R1/28 , H10N30/00 , H10N30/20
CPC分类号： H04R17/00 , H04R1/2803 , H10N30/20 , H10N30/708 , H04R2430/00 , H04R2499/13
摘要： A vibration apparatus may include a vibration device and an adhesive member at a surface of the vibration device. A modulus of the vibration device may be equal to a modulus of the adhesive member or may be greater than the modulus of the adhesive member.

164. 发明授权

US12096695B2 Piezoelectric element, piezoelectric actuator, and piezoelectric transformer 有权
公开(公告)号：US12096695B2
公开(公告)日：2024-09-17
申请号：US17213573
申请日：2021-03-26
申请人： TDK CORPORATION
发明人： Yuiko Hirose , Hiroki Katoh , Yumi Akiyama
IPC分类号： H10N30/50 , H10N30/045 , H10N30/053 , H10N30/20 , H10N30/40 , H10N30/853 , H10N30/87
CPC分类号： H10N30/50 , H10N30/045 , H10N30/053 , H10N30/20 , H10N30/40 , H10N30/8542 , H10N30/8554 , H10N30/871 , H10N30/877
摘要： Provided is a piezoelectric element according to the invention including a stacked body in which a piezoelectric layer and an internal electrode layer are stacked. In addition, the internal electrode layer contains at least one kind of element selected from palladium, nickel, platinum, gold, and silver, and copper, and the content of copper contained in the internal electrode layer is 1 to 50 at % in terms of a copper element.

165. 发明公开

US20240302682A1 ELECTRICALLY TUNABLE OPTICAL RESONATOR ON A CHIP FOR FAST TUNABLE INTEGRATED LASERS 审中-公开
公开(公告)号：US20240302682A1
公开(公告)日：2024-09-12
申请号：US18550081
申请日：2021-03-12
申请人： ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) , PURDUE RESEARCH FOUNDATION
发明人： Tobias Kippenberg , Sunil Bhave , Hao Tian , Johann Riemensberger , Grigorii Likhachev , Anat Siddharth
IPC分类号： G02F1/01 , G01S7/4911 , G02F1/35 , H01S5/0225 , H01S5/062 , H01S5/12 , H01S5/40 , H10N30/20 , H10N30/80 , H10N30/853 , H10N30/87
CPC分类号： G02F1/0128 , G01S7/4911 , G02F1/3511 , G02F1/354 , H01S5/0225 , H01S5/062 , H01S5/12 , H01S5/4006 , H10N30/20 , H10N30/802 , H10N30/853 , H10N30/877 , G02F2203/15
摘要： The present invention relates to an electrically tunable photonic resonator device for a component having a fast and flat actuation response. The photonic resonator device includes at least one optical waveguide with an optical interface for coupling in laser light. The photonic resonator device includes at least one optical resonator including a waveguide made of an optical resonator material. A laser light coupled via the optical waveguide is coupled into at least one optical resonator. The photonic resonator device includes at least one piezo actuator to apply mechanical stress onto the optical resonator. The optical resonator, the piezo actuator, and the optical waveguide are monolithically integrated on a common substrate of the photonic resonator device. The photonic resonator device includes a mechanical mode suppression means configured to attenuate one or more mechanical modes of oscillation caused by an AC operation of the piezo actuator.

166. 发明授权

US12089499B2 Actuator, liquid discharge head, liquid discharge device, and liquid discharge apparatus 有权
公开(公告)号：US12089499B2
公开(公告)日：2024-09-10
申请号：US18052207
申请日：2022-11-03
申请人： Takuma Hirabayashi , Takahiko Kuroda , Akio Yoshita
发明人： Takuma Hirabayashi , Takahiko Kuroda , Akio Yoshita
IPC分类号： B41J2/14 , H10N30/20
CPC分类号： H10N30/20 , B41J2/14201
摘要： An actuator includes: a frame having a recess; an actuator substrate including a common chamber; a damper between the frame and the actuator substrate, the damper defining a part of a wall of the common chamber of the actuator substrate. The damper includes multiple layers laminated in a lamination direction, and the multiple layers is symmetrical in the lamination direction with respect to a center of the damper in the lamination direction.

167. 发明公开

US20240292156A1 LOUDSPEAKERS 审中-公开
公开(公告)号：US20240292156A1
公开(公告)日：2024-08-29
申请号：US18649005
申请日：2024-04-29
申请人： SHENZHEN SHOKZ CO., LTD.
发明人： Wenbing ZHOU , Lei ZHANG , Qingyi WANG , Xin QI , Fengyun LIAO
IPC分类号： H04R17/00 , H04R1/02 , H04R1/28 , H10N30/20
CPC分类号： H04R17/00 , H04R1/021 , H04R1/2811 , H10N30/2042 , H10N30/2047
摘要： The present disclosure provides a loudspeaker, comprising: a driving component configured to generate a vibration based on an electrical signal; a vibration component configured to receive the vibration of the driving component to vibrate; and a housing, wherein the driving component and the vibration component are disposed in a cavity formed by the housing. The cavity includes a front cavity disposed at one side of the vibration component and one or more rear cavities disposed at another side of the vibration component. The housing includes a rear cavity plate. At least one of the one or more rear cavities is at least enclosed by the driving component, the vibration component, and the rear cavity plate. The rear cavity plate is provided with one or more through holes.

168. 发明公开

US20240286173A1 IMAGING DEVICES HAVING PIEZOELECTRIC TRANSCEIVERS WITH HARMONIC CHARACTERISTICS 审中-公开
公开(公告)号：US20240286173A1
公开(公告)日：2024-08-29
申请号：US18656525
申请日：2024-05-06
申请人： Exo Imaging, Inc.
发明人： Haesung KWON , Brian BIRCUMSHAW , Sandeep AKKARAJU
IPC分类号： B06B1/06 , B06B1/02 , G01H11/08 , G01N29/24 , H10N30/20
CPC分类号： B06B1/0622 , G01H11/08 , G01N29/2406 , B06B1/0292 , H10N30/2047
摘要： Described are micromachined ultrasonic transducers (MUTs) with convex or concave electrodes, which have enhanced pressure amplitude and frequency response behavior when driven at fundamental and harmonic frequencies, as well as methods of making the same.

169. 发明公开

US20240280804A1 OPTICAL MODULE AND OPTICAL DEVICE 审中-公开
公开(公告)号：US20240280804A1
公开(公告)日：2024-08-22
申请号：US18652021
申请日：2024-05-01
申请人： Murata Manufacturing Co., Ltd.
发明人： Yuuki ISHII , Yuka TANAKA , Katsuhiro TABUCHI , Noritaka KISHI , Hitoshi SAKAGUCHI , Takahide NAKADOI , Nobumasa KITAMORI
IPC分类号： G02B27/00 , H10N30/20
CPC分类号： G02B27/0006 , H10N30/2047
摘要： An optical module includes a translucent body, a tubular vibrator supporting the translucent body, a piezoelectric element located at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator, in which a first gap is located between the translucent body and the inner-layer optical component, a second gap is located between the piezoelectric element and the inner-layer optical component, at least one of a first dimension of the first gap in a vibration direction of the translucent body and a second dimension of the second gap in the vibration direction of the vibrator is in a range of about [(n×λ/2)+0.1 mm] or more and about [{(n+1)×λ/2}−0.1 mm] or less, and n indicates an integer of 0 or more, and λ indicates a wavelength of an acoustic wave generated by vibration.

170. 发明授权

US12053798B2 Drive circuitry 有权
公开(公告)号：US12053798B2
公开(公告)日：2024-08-06
申请号：US17102002
申请日：2020-11-23
申请人： Cirrus Logic International Semiconductor Ltd.
发明人： John Paul Lesso
IPC分类号： B06B1/02 , H03K17/687 , H10N30/20
CPC分类号： B06B1/0207 , H03K17/6871 , B06B2201/55 , H03K2217/0081 , H10N30/20
摘要： Drive circuitry for driving a piezoelectric transducer, the circuitry comprising: an inductor; a first reservoir capacitor; a switch network; and control circuitry configured to control operation of the switch network to selectively couple the inductor to one of a power supply, the first reservoir capacitor and the piezoelectric transducer, wherein the circuitry is operative in a discontinuous mode to transfer charge between the reservoir capacitor and the piezoelectric transducer, and wherein a polarity of the first reservoir capacitor is opposite to a polarity of the power supply.

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