Patents Assigned to QISDA Corporation
  • Publication number: 20230251689
    Abstract: A curved display apparatus includes an adhesive member, a back frame and a flexible display panel. The back frame includes a curved attaching portion for disposing the adhesive member thereon. The curved attaching portion has a first curvature radius. The flexible display panel is combined with the back frame via the adhesive member. The adhesive member is stretched by the flexible display panel to allow that the flexible display panel elastically returns to have a second curvature radius. The first curvature radius is less than the second curvature radius.
    Type: Application
    Filed: April 1, 2022
    Publication date: August 10, 2023
    Applicant: QISDA CORPORATION
    Inventors: Jiann-Ming Lo, NGOC LUONG NGUYEN
  • Publication number: 20230240537
    Abstract: A calibration device for an intraoral scanner is provided. The calibration device includes a base, a moving portion, a circuit board, and a sensor. The moving portion is disposed on the base. The moving portion is moveable on the base along an extending direction of the calibration device. The moving portion includes a driving structure, a position determining portion, and a target plate. The position determining portion is coupled to and driven by the driving structure. The position determining portion has a first feature portion and a second feature portion different from the first feature portion. The target plate is coupled to the position determining portion. The circuit board is disposed at one side of the moving portion. The sensor is disposed on the circuit board. The sensor is configured to detect the first feature portion and the second feature portion to determine a position of the moving portion.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 3, 2023
    Applicant: Qisda Corporation
    Inventors: Tsung-Hsun WU, Ching-Ting LIU, Yuan-Yu HSIAO
  • Publication number: 20230244133
    Abstract: A light source module includes phase retardation layer, first light source, second light source, first Polarization Beam Splitter (PBS) layer, second PBS layer, first redirector and second redirector. The phase retardation layer, the first light source, the second light source, the first PBS layer, the second PBS layer, the first redirector and the second redirector are symmetrically disposed relative to symmetry axis. The first light source and the second light source each emit polarized light having first linear polarization direction and polarized light having second linear polarization direction. The phase retardation layer converts the first linear polarization direction of polarized light into the second linear polarization direction. The PBS layers allow polarized light having the first linear polarization direction to travel through but reflect polarized light having the second linear polarization direction. The redirector reflects polarized light having the second linear polarization direction.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 3, 2023
    Applicant: Qisda Corporation
    Inventor: Peng LEE
  • Publication number: 20230240024
    Abstract: A method for adjusting the uniformity of a display is provided. The method includes the following steps. An angle sensor is disposed on a display. The display opposite to a measurement device is disposed on a rotation axis. The uniformity of a frame of the display at at least one use angle is measured by the measurement device, wherein the display is adjusted to a first use angle and is left still for a period of time, so that the uniformity of the display arranged at the first use angle has a first uniformity correction parameter; and a correspondence table relevant to the first use angle and the first uniformity correction parameter is stored to the display.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 27, 2023
    Applicant: Qisda Corporation
    Inventors: Yi-Wen CHIOU, Shih-Yao LIN, Chun-Fu CHEN, Lung-Li CHUNG, Chen-Ning LIAO
  • Publication number: 20230235849
    Abstract: A fixing module suitable for fixing to one of a first end and a second end of a screen bracket is provided. The fixing module includes a first part and a second part. The second part is slidably connected to the first part. The fixing module is configured to be fixed to the first end of the screen bracket by the first part or fixed to the second end of the screen bracket by the second part.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 27, 2023
    Applicant: Qisda Corporation
    Inventors: Jen-Feng CHEN, Shih-An LIN, Kuan-Hsu LIN, Hsin-Hung LIN, Yung-Chun SU, Nien-Tsung HSU, Hsin-Che HSIEH, Hao-Chun TUNG, Yang-Zong FAN
  • Publication number: 20230237970
    Abstract: A method of controlling a display device includes obtaining a duty cycle of a backlight control signal, and adjusting a starting time of a pulse in the backlight control signal at least according to the duty cycle. The backlight control signal is used to control a backlight of the display device.
    Type: Application
    Filed: April 26, 2022
    Publication date: July 27, 2023
    Applicant: QISDA CORPORATION
    Inventors: Tse-Wei Fan, Wei-Yu Chen
  • Publication number: 20230226572
    Abstract: 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.
    Type: Application
    Filed: November 28, 2022
    Publication date: July 20, 2023
    Applicant: QISDA CORPORATION
    Inventor: Fu-Sheng Jiang
  • Publication number: 20230230529
    Abstract: A driving circuit, a driving method and a display apparatus are provided. The driving method is provided for driving a light-emitting unit including a first light-emitting element series and a second light-emitting element series connected in parallel and connected to a processing unit and a driving unit of a driving circuit. The processing unit detects a first voltage value and a second voltage value. The driving unit detects and transmits a first current value and a second current value to the processing unit. The processing unit determines and compares a first power value and a second power value. When the first and second power values are different, the processing unit controls the driving unit to adjust a driving current setting of the light-emitting element series until the first and second power values are equal. The invention ensures luminance consistency of different light-emitting element series and the luminance uniformity of display apparatus.
    Type: Application
    Filed: May 26, 2022
    Publication date: July 20, 2023
    Applicant: Qisda Corporation
    Inventors: Po-Wen WANG, Tung-Hsien TSAI, Wen-Hao KUO, Chin-Sheng CHUEH
  • Publication number: 20230231969
    Abstract: A magnetic template with adjustable magnetic force is provided. The magnetic template is applied to a display device. The display device can be fixed on a plane by the magnetic template, wherein the magnetic template includes an assembly shell and an adjustment element. A magnetic element is arranged inside the assembly shell. The adjustment element is arranged in the assembly shell and is configured to adjust the magnetic force of the magnetic element relative to the plane or adjust the magnetic force of the magnetic element.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 20, 2023
    Applicant: Qisda Corporation
    Inventors: Yung-Chun SU, Hung-Mao CHEN, Hui-Chieh HU, Hsin-Che HSIEH, Shih-An LIN, Kuan-Hsu LIN, Hsin-Hung LIN, Jen-Feng CHEN, Hao-Chun TUNG, Yang-Zong FAN, Chih-Ming CHANG
  • Publication number: 20230214995
    Abstract: A method for generating a three-dimensional image includes capturing a set of color images of an object, generating a first point cloud according to at least the set of color images, generating a second point cloud by performing a filtering operation to the first point cloud according to the set of color images, selectively performing a pairing operation using the second point cloud and a target point cloud to generate pose information, and combining the first point cloud and the target point cloud according to the pose information to update the target point cloud to generate the three-dimensional image of the object. The set of color images is related to color information of the object. The relativity of the second point cloud and the rigid surface is higher than the relativity of the second point cloud and the non-rigid surface.
    Type: Application
    Filed: March 14, 2022
    Publication date: July 6, 2023
    Applicant: QISDA CORPORATION
    Inventors: Chuang-Wei Wu, Hung-Chih Chan, Lung-Kai Cheng
  • Patent number: 11693437
    Abstract: The disclosure provides an electronic device. The electronic includes an internal battery, a first converter, a processor and a control circuit. The first converter is used to convert electrical power provided by the internal battery or provided by an external power source into a first power signal. The processor operates in an “ON-state” or switches to an “OFF-state”. The control circuit is used to control the first converter, so that the first converter selectively provides the first power signal to the processor.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: July 4, 2023
    Assignee: Qisda Corporation
    Inventor: Chih-Ming Chang
  • Patent number: 11696067
    Abstract: 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.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: July 4, 2023
    Assignee: Qisda Corporation
    Inventors: Jun-Ming Shen, Jin-Fu Lee, Min-Wen Hong
  • Patent number: 11690599
    Abstract: An object volume acquisition method of an ultrasonic image, for a probe of an ultrasonic system is disclosed.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 4, 2023
    Assignee: Qisda Corporation
    Inventors: Wei-Ting Xiao, Yu-Teng Tung
  • Publication number: 20230204348
    Abstract: A three dimensional scanning apparatus is used to detect a contour of an object, and includes an illumination light source, a first elliptic opening portion, a reference pattern generator, a second elliptic opening portion and an optical receiver. The illumination light source emits an illumination beam. The reference pattern generator provides a reference pattern by projection of the illumination beam, and transmits the reference pattern toward the object via the first elliptic opening portion. The optical receiver receives a detection pattern reflected from the object via the second elliptic opening portion, so as to analyze a difference between the reference pattern and the detection pattern for acquiring the contour.
    Type: Application
    Filed: May 3, 2022
    Publication date: June 29, 2023
    Applicant: QISDA CORPORATION
    Inventors: Ching-Huey Wang, Tsung-Hsun Wu, Chih-Ming Hu
  • Publication number: 20230185127
    Abstract: 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.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 15, 2023
    Applicant: Qisda Corporation
    Inventor: Wan-Hui CHEN
  • Publication number: 20230189456
    Abstract: A display device includes a screen, a screen stand and a fixing module. The screen stand is pivotally connected to the screen. The fixing module is connected to the screen stand and configured to clamp a first surface and a second surface of a board and includes a connecting element, a first abutting element and a second abutting element. The first abutting element is fixed to the connecting element and configured to abut against the first surface of the board. The second abutting element is pivotally connected to the connecting element and includes an abutting end configured to abut against the second surface of the board.
    Type: Application
    Filed: February 10, 2022
    Publication date: June 15, 2023
    Applicant: Qisda Corporation
    Inventors: Jen-Feng CHEN, Ying-Yu TSAI, Kuan-Hsu LIN, Hsin-Hung LIN, Shih-An LIN, Yung-Chun SU, Hsin-Che HSIEH, Hao-Chun TUNG, Yang-Zong FAN, Chih-Ming CHANG
  • Publication number: 20230176466
    Abstract: A light source system includes a first light emitter configured to emit a first light with a first color band in a first time interval of a time period, a second light emitter configured to emit a second light with a second color band in a second time interval of the time period rather than in the rest of the time period other than the second time interval, and a light guide disposed downstream from the first light emitter and the second light emitter. The first time interval and the second time interval overlap in an overlapping time interval. The first light emitter and the second light emitter synchronously emit the first light and the second light in the overlapping time interval to form a combined light beam in the light guide. The light with the second color band is dominant of the combined light beam.
    Type: Application
    Filed: January 27, 2022
    Publication date: June 8, 2023
    Applicant: Qisda Corporation
    Inventors: Peng LEE, Tsung-Hsun WU, Ching-Tze HUANG, Jia-Ming ZHANG
  • Patent number: 11672060
    Abstract: A light emit diode (LED) driving circuit, an LED driving method and a display device thereof are provided. The LED driving circuit includes: a first LED driving unit for driving first and second color LEDs of the LED circuit. The first LED driving unit includes: a duty cycle circuit generating an enable signal based on at least two color light duty cycle signals, the at least two color light duty cycle signals controlling an emitting cycle of the LED circuit; a current control circuit, generating at least two color light current adjustment signals based the at least two color light duty cycle signals and at least two color light current level signals; and a constant current circuit, for adjusting current levels of the first and the second color LEDs of the LED circuit based on the enable signal and the at least two color light current adjustment signals.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: June 6, 2023
    Assignee: Qisda Corporation
    Inventors: Chi-Jen Chen, Chih-Hsiang Wu
  • Publication number: 20230169929
    Abstract: 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.
    Type: Application
    Filed: May 20, 2022
    Publication date: June 1, 2023
    Applicant: Qisda Corporation
    Inventor: Min-Jye CHEN
  • Patent number: 11663993
    Abstract: A display system includes a host and a display. The host executes a first application and a program. The program sets a first display parameter corresponding to the first application. The display receives a signal provided by the host. The signal includes a desktop image. The first application is operated at a first window on the desktop image. The program outputs the first display parameter to the display. The display sets the first window with the first display parameter and displays, and displays the non-first window area of the desktop image with a preset display parameter.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: May 30, 2023
    Assignee: Qisda Corporation
    Inventors: Yu-Fu Fan, Yi-Ming Huang, Yu-Chun Lin