公开(公告)号：US11742748B1

公开(公告)日：2023-08-29

申请号：US17828106

申请日：2022-05-31

申请人： Qisda Corporation

发明人： Meng-Hsien Lin

IPC分类号： H02M1/32 ,  H02M3/158 ,  H03K17/22

CPC分类号： H02M1/32 ,  H02M3/158 ,  H03K17/223

摘要： An electronic device including a voltage detection circuit, a control and protection circuit, at least one voltage converter, and a system-on-chip is provided. The voltage detection circuit detects a voltage source to output a voltage detection signal. The control and protection circuit, coupled to the voltage detection circuit, generates a system power enabling signal according to the voltage detection signal. The at least one voltage converter, coupled to the control and protection circuit, generates a system power signal according to the system power enabling signal. The system-on-chip, coupled to the at least one voltage converter, controls the electronic device when receiving the system power signal. In response to a power off signal generated from the system-on-chip, the control and protection circuit further isolates the voltage detection signal to avoid the transition of the voltage detection signal affecting a system shutdown procedure of the electronic device.

公开(公告)号：US20230226572A1

公开(公告)日：2023-07-20

申请号：US17994408

申请日：2022-11-28

申请人： QISDA CORPORATION

发明人： Fu-Sheng Jiang

IPC分类号： B06B1/06 ,  H10N30/50 ,  H10N30/05 ,  H10N30/20 ,  G10K11/02

CPC分类号： B06B1/067 ,  H01L41/083 ,  H01L41/27 ,  H01L41/09 ,  G10K11/02

摘要： A waveform improvement method includes providing a piezoelectric material coupled to a matching material, generating a plurality of first grooves in a matching layer of at least one matching layer, packaging an isolation material into the plurality of first grooves, and providing two input voltages to the piezoelectric material for generating an ultrasonic signal by the piezoelectric material. The piezoelectric material includes at least one piezoelectric layer. The matching material includes at least one matching layer. The matching material is used to match acoustic impedance of the piezoelectric material. The plurality of first grooves in the matching layer are used to optimize the acoustic impedance and a vibration isolation effect.

公开(公告)号：US11696067B2

公开(公告)日：2023-07-04

申请号：US17095811

申请日：2020-11-12

申请人： Qisda Corporation

发明人： Jun-Ming Shen ,  Jin-Fu Lee ,  Min-Wen Hong

IPC分类号： H04R1/28 ,  H04R1/02

CPC分类号： H04R1/2896 ,  H04R1/025 ,  H04R2400/11

摘要： An electronic device including a holder, a first buffer element, a second buffer element and a loudspeaker is provided. The holder includes a first section and a second section perpendicular to the first section. The first section and the second section are respectively provided with a first opening and a second opening. The first buffer element is disposed in the first opening of the first section. The second buffer element is disposed in the second opening of the second section. The loudspeaker is supported on the housing by the holder. The first buffer element is connected to the loudspeaker, and the second buffer element is connected to the housing.

公开(公告)号：US20230185127A1

公开(公告)日：2023-06-15

申请号：US17691187

申请日：2022-03-10

申请人： Qisda Corporation

发明人： Wan-Hui CHEN

IPC分类号： G02F1/13357 ,  G02F1/1335

CPC分类号： G02F1/133605 ,  G02F1/133603 ,  G02F1/133614

摘要： A backlight module for a display is provided. The backlight module includes a base, a light emitting element, a reflector layer and a fluorescence material layer. The base includes a backplane and a sidewall, and the backplane connects to the sidewall to define a space. The light emitting element is on the backplane and in the space. The reflector layer is on the sidewall. The fluorescence material layer is on the reflector layer. The sidewall and the fluorescence material layer are on opposite sides of the reflector layer. The fluorescence material layer has a length less than a length of the reflector layer.

公开(公告)号：US20230169929A1

公开(公告)日：2023-06-01

申请号：US17749262

申请日：2022-05-20

申请人： Qisda Corporation

发明人： Min-Jye CHEN

IPC分类号： G09G3/34 ,  G09G3/32

CPC分类号： G09G3/3406 ,  G09G3/32 ,  G09G2310/08 ,  G09G2310/0237 ,  G09G2320/064 ,  G09G2310/06 ,  G09G2320/0257 ,  G09G2320/062 ,  G09G2370/022

摘要： The application discloses an image display device and a control method thereof. The control method for the image display device includes: receiving a first image signal from a host and displaying a frame, a first frame data of the first image signal having a first frequency; determining that the image display device enters a Motion Blur Reduction (MBR) mode and writing a double frequency of a vertical synchronous signal into a storage unit; and informing the host to read the storage unit and alternatively outputting a second frame data and a black-insertion frame data from the host, the second frame data having a second frequency higher than the first frequency.

公开(公告)号：US11644739B2

公开(公告)日：2023-05-09

申请号：US17352391

申请日：2021-06-21

申请人： QISDA CORPORATION

发明人： Chih-Shiung Chien ,  Ming-Kuen Lin ,  Tsung-Hsun Wu

IPC分类号： G03B33/12 ,  G03B21/20

CPC分类号： G03B33/12 ,  G03B21/204 ,  G03B21/2066

摘要： A projector includes a light source module, a collimator lens module, a wavelength conversion module, a first dichroic unit and a second dichroic unit. The light source module provides a first beam. The collimator lens module has a first part and a second part. The first beam passes the first part. The wavelength conversion module receives the first beam and includes a reflecting plate and a wavelength conversion layer. The first dichroic unit reflects the first beam. The reflecting plate reflects the first beam to generate a second beam passing the second part. The wavelength conversion layer is excited by the first beam to generate a third beam. The second dichroic unit allows passing of the third beam and a part of the second beam to generate a fourth beam, and reflects the other part of the second beam to generate a fifth beam.

公开(公告)号：US20230126257A1

公开(公告)日：2023-04-27

申请号：US17573658

申请日：2022-01-12

申请人： QISDA CORPORATION

发明人： Yu-Fu Fan ,  Chang-Cheng Chen ,  Wan-Wei Chi

IPC分类号： G06F9/4401 ,  G06F13/40

摘要： An electronic system includes a display device, a first host and a second host. The display device includes a network interface port for connecting to an external network, a first port, a second port, a control unit for recording information associated with a designated network bridge target, and a hub unit for controlling the signal transmission between the network interface port, the first port, the second port and the control unit. The first host is coupled to the first port and configured to activate network bridge function when set as the designated network bridge target, thereby connecting to the external network. The second host is coupled to the second port and configured to connect to the external network using the network bridge function via the second port, the hub unit and the first port.

公开(公告)号：US11635657B1

公开(公告)日：2023-04-25

申请号：US17692250

申请日：2022-03-11

申请人： Qisda Corporation

发明人： Jun-Da Lin ,  Chun-Ting Chen

IPC分类号： G02F1/13357 ,  G02F1/1333 ,  G02F1/1335

摘要： A light source module and a display are provided. The light source module includes a plurality of first light emitting units and a first support structure. For example, the first support structure is formed integrally. The first support structure includes a first surface and a second surface opposite to the first surface. The first surface of the first support structure includes at least one flat surface. The second surface of the first support structure is a first curved surface. The plurality of first light emitting units is disposed on the at least one flat surface of the first surface of the first support structure.

公开(公告)号：US11630349B1

公开(公告)日：2023-04-18

申请号：US17728899

申请日：2022-04-25

申请人： Qisda Corporation

发明人： Chun-Ting Chen

IPC分类号： G02F1/1335 ,  G02F1/13357

摘要： A backlight module and a display having the same are provided. The backlight module includes a front bezel, a back cover, and a light source. The back cover is disposed opposite to the front bezel. The back cover includes a body and one or more heat dissipation elements. The body has one or more openings corresponding to one or more heat sources. The one or more heat dissipation elements are disposed in the one or more openings, respectively. The light source is disposed between the front bezel and the back cover.

公开(公告)号：US20220390820A1

公开(公告)日：2022-12-08

申请号：US17730321

申请日：2022-04-27

申请人： Qisda Corporation

发明人： Chih-Shiung CHIEN ,  Ming-Kuen LIN ,  Tsung-Hsun WU ,  Yi-Ling LO

IPC分类号： G03B21/20 ,  G02B27/14

摘要： A light source module including first and second light sources, first and second wavelength conversion units, and first and second light splitting units is provided. The first light source emits a first light having a first wavelength. The first wavelength conversion unit converts at least one portion of the first light into a first converted light having a second wavelength. The second light splitting unit allows the lights having the second and third wavelengths to travel through and reflects the light having the first wavelength. The second light source emits a second light having the first wavelength. The second wavelength conversion unit converts at least one portion of the second light into a second converted light having the third wavelength. The first light splitting unit is disposed between the first and second wavelength conversion units and reflects the first wavelength and allows the second wavelength to travel through.