Patents Assigned to Coretronic Corporation
  • Publication number: 20220029072
    Abstract: A wavelength conversion element is provided. The wavelength conversion element includes a substrate, a wavelength conversion layer, a reflective layer, and a heat conductive layer. The wavelength conversion layer is disposed on the substrate. The reflective layer is disposed on the substrate and is located between the substrate and the wavelength conversion layer. The heat conductive layer is disposed on the substrate, and at least a portion of the heat conductive layer is located between the substrate and the reflective layer. A projector is also provided, and the projector includes the wavelength conversion element. The wavelength conversion element exhibits a favorable heat dissipation effect and provides improved conversion efficiency, so that the projector exhibits favorable projection quality and product competitiveness.
    Type: Application
    Filed: July 9, 2021
    Publication date: January 27, 2022
    Applicant: Coretronic Corporation
    Inventor: Tsung-Hsiang Fu
  • Publication number: 20220029069
    Abstract: A manufacturing method of a wavelength conversion device, and a wavelength conversion device manufactured by the method are provided. The manufacturing method of the wavelength conversion device of the disclosure includes the following steps. A wavelength conversion material layer is formed on a substrate by a sol-gel method. The wavelength conversion material layer includes a first colloidal material, and a fluorescent material. The wavelength conversion material layer is solidified, thereby forming a wavelength conversion layer including a plurality of first microstructures. The step of solidifying the wavelength conversion material layer includes irradiating the wavelength conversion material layer with a laser. The manufacturing method of the wavelength conversion device and the wavelength conversion device provided by the disclosure have advantages such as a simple process, and low manufacturing cost.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Applicant: Coretronic Corporation
    Inventor: Kuo-Chou Chang
  • Publication number: 20220026584
    Abstract: A positioning system and a positioning method are provided. The method includes: receiving, via a movable base station (MBS) disposed on a vehicle, radio data at a first time point; performing RTK calculation according to the radio data to obtain a rover position of a second time point; obtaining an attitude angle variation of a rover between the first time point and the second time point; calculating an MBS position of the second time point according to the rover position of the second time point and the attitude angle variation; positioning the vehicle of the second time point according to the MBS position and the rover position of the second time point; and calculating a carrier phase difference between the MBS and the rover at the second time point to update the radio data at the second time point.
    Type: Application
    Filed: July 20, 2021
    Publication date: January 27, 2022
    Applicant: Coretronic Corporation
    Inventor: Jhao-Hong Lee
  • Publication number: 20220026787
    Abstract: A projector cooling system, including a casing, a first heat generating component, and a second heat generating component, is provided. The first heat generating component and the second heat generating component are sequentially disposed in the casing along an anti-gravity direction. A temperature of the first heat generating component is lower than a temperature of the second heat generating component. The projector cooling system of the invention is adapted to introduce more cooling airflow without using a moving part, thereby reducing the temperatures of the heat generating components.
    Type: Application
    Filed: May 11, 2021
    Publication date: January 27, 2022
    Applicant: Coretronic Corporation
    Inventors: Yi-Han Lai, Shi-Wen Lin, Tsung-Ching Lin
  • Publication number: 20220018987
    Abstract: The invention provides a projection method and system. The method includes providing a first sensing group sensing a space and generating a first sensing result to determine whether a user is in an entering or exiting state relative to the space; providing a second sensing group sensing a first or second object in the space according to the first sensing result and generating a second sensing result; and generating a prompt information according to the second sensing result and displaying the prompt information. The system includes a first sensing group, a second sensing group, and a display device. The method and system of the invention sense the space according to the entering and exiting state of the user to effectively reduce the inspection steps of the user for the space, thereby effectively improving the safety of the space, and improving the operating convenience of the user of the space.
    Type: Application
    Filed: June 23, 2021
    Publication date: January 20, 2022
    Applicant: Coretronic Corporation
    Inventors: Chi-Tang Hsieh, Chih-Hsien Tsai, Yu-Hsien Wu
  • Publication number: 20220022297
    Abstract: The invention relates to a light beam generating device and method, and a projection device. The light beam generating device is configured to receive a color control signal and generate a target light beam having a target color, and includes a plurality of drivers, a current signal generating circuit, and a control circuit. The drivers respectively drive a plurality of light-emitting elements according to a plurality of current signals, wherein the plurality of light-emitting elements collectively generate the target light beam. The current signal generating circuit is coupled to the drivers and generates the plurality of current signals according to the color control signal corresponding to the target color. The control circuit is coupled to the drivers and controls whether each driver is enabled according to the color control signal.
    Type: Application
    Filed: February 3, 2021
    Publication date: January 20, 2022
    Applicant: Coretronic Corporation
    Inventors: Wen-Hsin Chang, Chung-Lin Ke, Shun-Tai Chen, Tung-Yi Lu
  • Publication number: 20220019137
    Abstract: A wavelength conversion module includes a driving assembly, a wavelength conversion substrate, and a clamping element. The driving assembly is connected to the wavelength conversion substrate to drive the wavelength conversion substrate to rotate around a central axis of the driving assembly. The clamping element is attached to the wavelength conversion substrate along the central axis. At least one of the wavelength conversion substrate and the clamping element includes at least one recess and at least one through hole. A direction of the through hole is parallel to the central axis, and the clamping element, the recess, and the wavelength conversion substrate define at least one heat dissipation channel. The through hole is relatively adjacent to the central axis and is in communication with the heat dissipation channel.
    Type: Application
    Filed: May 17, 2021
    Publication date: January 20, 2022
    Applicant: Coretronic Corporation
    Inventor: FA-CHIH CHEN
  • Publication number: 20220019081
    Abstract: A waveguide and a head-mounted display device are provided. The waveguide is used for transmitting an image beam. The waveguide includes a plate, at least one coupling-in prism, and microstructures. The plate has a first surface and a second surface. The image beam enters the plate through the first surface. The coupling-in prism is located on the second surface. The coupling-in prism has a first inclined surface, and the image beam is reflected by the first inclined surface and then transmitted in the plate. The microstructures are located on the second surface. Each microstructure has a second inclined surface. The image beam exits from the first surface after being reflected by the second inclined surface. A difference between refractive indices of the coupling-in prism and the microstructures is less than 0.05.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 20, 2022
    Applicant: Coretronic Corporation
    Inventor: Hung-Ta Chien
  • Patent number: 11226806
    Abstract: The disclosure provides a projector and a projector firmware updating method therefor. The projector is connected to a cloud server through a network connection. The first processor of the projector executes a first firmware updating process corresponding to a request firmware, including: identifying the first request unique identification code of the projector and the request firmware serial number of the request firmware, and transmitting the first request unique identification code and the request firmware serial number to the cloud server; if the request firmware is not the latest version, receiving the first target firmware from the cloud server and updates the request firmware by using the first target firmware, and completing the first firmware updating process. The projector and projector firmware updating method of the disclosure can efficiently update the firmware to the latest or specific version according to the unique identification code of the projector.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: January 18, 2022
    Assignee: Coretronic Corporation
    Inventors: Yi-Fa Wang, Shih-Min Wu, Ping-Chen Ma
  • Publication number: 20220013062
    Abstract: An adjusting device for adjusting a driving voltage of a light-emitting element is provided. The adjusting device includes a driving circuit and a control circuit. The control circuit is configured to generate a voltage difference. A control signal indicates that brightness of a display is adjusted from first brightness of the display to second brightness of the display, and the driving circuit adjusts the driving voltage according to the voltage difference. The control circuit queries a look-up table to obtain a first voltage corresponding to the first brightness of the display and a second voltage corresponding to the second brightness of the display. The voltage difference is obtained from the difference between the first voltage and the second voltage. The first voltage and second voltage respectively indicate the minimum cross-voltages required by the light-emitting element under the first brightness of the display and the second brightness of the display.
    Type: Application
    Filed: May 5, 2021
    Publication date: January 13, 2022
    Applicant: Coretronic Corporation
    Inventors: Fang Yu Hsieh, Ho-Yi Yeh, Kuo Tsung Chen
  • Publication number: 20220011657
    Abstract: The invention provides a wavelength conversion device and a projection device, where the wavelength conversion device includes a substrate, a wavelength conversion layer, and a light-transmitting layer. The wavelength conversion layer is disposed on the substrate and is made of a wavelength conversion material and a bonding material. The wavelength conversion layer has a refractive index of 1.55-1.70. The light-transmitting layer is disposed on the wavelength conversion layer and is made of the bonding material. The wavelength conversion device and the projection device provided by the invention have greater brightness and are less restricted by temperature during operation.
    Type: Application
    Filed: June 21, 2021
    Publication date: January 13, 2022
    Applicant: Coretronic Corporation
    Inventors: I-Hua Chen, Chi-Tang Hsieh
  • Patent number: 11221548
    Abstract: Provided are an adjustable optical module and a projector including the same. The adjustable optical module includes an optical element; a carrier; a frame; a base; a first adjusting assembly including a first driving member, a first adjusting member, and a first rotating member; and a second adjusting assembly including a second driving member, a second adjusting member, and a second rotating member. The first adjusting member is adjusted to drive a first boss of the first driving member to move, the first rotating member being correspondingly driven to rotate, thereby pushing the carrier to rotate around a first axis relative to the base. The second adjusting member is adjusted to drive a second boss of the second driving member to move, the second rotating member being correspondingly driven to rotate, thereby pushing the frame to rotate around a second axis relative to the base.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: January 11, 2022
    Assignee: Coretronic Corporation
    Inventor: Yii-Wen Chen
  • Publication number: 20220004054
    Abstract: A display device, including a first polarizing film, a pixel array module, a second polarizing film, and a first electronically controlled phase retardation module, is provided. The pixel array module is disposed in overlap with the first polarizing film. The second polarizing film is disposed in overlap with the pixel array module. The first electronically controlled phase retardation module includes a first liquid crystal layer, two first alignment layers, and two first conductive layers. The first liquid crystal layer and the first alignment layers are disposed between the first conductive layers. The second polarizing film is located between the pixel array module and the first electronically controlled phase retardation module. One of the first polarizing film and the second polarizing film directly contacts one of the first conductive layers of the first electronically controlled phase retardation module. The display device has a switchable viewing angle and is thinner and lighter.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Applicant: Coretronic Corporation
    Inventors: Ming-Chuan Chih, Wen-Chun Wang
  • Publication number: 20220004019
    Abstract: A curved shell, configured to receive a projection light beam provided by a projection device, and including a curved main body, a microstructure layer and multiple light-resistant layers is provided. The curved main body has an inner surface and an outer surface opposite to each other, and the outer surface has different curvatures. The microstructure layer is disposed on the outer surface and includes multiple first inclined surfaces and multiple second inclined surfaces distributed in alternation, and any two adjacent ones of the first inclined surfaces and the second inclined surfaces have an included angle. The light-resistant layers are disposed on the first inclined surfaces, wherein the light-resistant layers reflect or absorb ambient light beams from the outside of the curved main body, and the inner surface receives the projection light beam, and the projection light beam passes through the second inclined surfaces to form a projection image.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 6, 2022
    Applicant: Coretronic Corporation
    Inventors: Shih-Kan Lin, Chia-Tien Chen
  • Publication number: 20220005202
    Abstract: The invention provides an image segmentation method and an electronic device. The image segmentation method includes the following steps. Regression analysis is performed on a first gray-scale image to obtain a residual image having an object backbone area. A pixel value of each pixel in the object backbone area is defined as an average gray-scale value of the object backbone area in the residual image, and a second gray-scale image having the object backbone area is generated. It is recursively determined whether a residual polarity of each adjacent pixel adjacent to edge pixels of the object backbone area in the residual image is the same as a residual polarity of the corresponding edge pixel, and whether a pixel value of each adjacent pixel is greater than a first threshold, so as to expand the object backbone area in the second gray-scale image, which is extracted as a target object.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 6, 2022
    Applicant: Coretronic Corporation
    Inventor: Huai-En Wu
  • Patent number: 11215855
    Abstract: The disclosure provides a screen anti-peeping protection layer arranged above a display panel. The screen anti-peeping protection layer includes a first polarizing layer, a second polarizing layer, a viewing angle adjusting layer and a touch sensing layer. The first polarizing layer and the second polarizing layer are sequentially arranged on a transmission path of a display beam which comes from the display panel. The viewing angle adjusting layer is arranged on the transmission path and located between the first polarizing layer and the second polarizing layer, and used for changing a range of an emitted light viewing angle of the display beam. The touch sensing layer is arranged on the transmission path, and located above the viewing angle adjusting layer and opposite to the first polarizing layer. The disclosure also provides a touch display device including the screen anti-peeping protection layer and the display panel as described above.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Ping-Yen Chen, Chung-Yang Fang, Yu-Wei Liang, Yin-Jen Lin
  • Patent number: 11218678
    Abstract: A projection system, a protection circuit and a current monitoring method of an image resolution enhancement device are provided. A light valve converts an illumination beam into an image beam. The image resolution enhancement device changes a transmission path of the image beam according to a driving current. The protection circuit detects the driving current. When the driving current is greater than or equal to a first current threshold, the protection circuit further compares the driving current with a second current threshold. When a duration time that the driving current is smaller than the second current threshold and greater than or equal to the first current threshold is greater than or equal to a time threshold, the protection circuit decreases the driving current to be smaller than the first current threshold to control the image resolution enhancement device. The projection lens converts the image beam into a projection beam.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventor: Chao-Chun Wang
  • Patent number: 11215402
    Abstract: A heat dissipation module is configured to dissipate heat generated by at least one heating element of a projection device. The heat dissipation module includes at least one first heat pipe, at least one second heat pipe and a heat dissipation fin assembly. The first heat pipe includes a first section connected to the heating element and a second section. The second heat pipe includes a third section connected to the heating element and a fourth section. The length of the first heat pipe is less than that of the second heat pipe. The heat dissipation fin assembly includes a plurality of heat dissipation fins. The second section and the fourth section pass through the heat dissipation fin assembly, and the number of heat dissipation fins through which the second section passes is 70% or below of the number of heat dissipation fins through which the fourth section passes.
    Type: Grant
    Filed: May 31, 2020
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Wen-Jui Huang, Jhih-Hao Chen, Tsung-Ching Lin
  • Patent number: 11218674
    Abstract: A projection device including a projection unit, an image capture device and a control unit is provided. The projection unit includes a light source. The projection unit is configured to project an image picture to a projection area. The image capture device is configured to obtain an image capture picture including the image picture in an image capture range. The image capture range is larger than the projection area. The control unit is coupled to the image capture device. The control unit is configured to determine, according to a picture variation value of the image capture picture, whether to adjust the brightness of the light source. In addition, a brightness adjusting method used for the projection device is also provided. According to the disclosure, the brightness of the light source of the projection device may be properly adjusted according to environmental factors.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Chi-Wei Lin, Chien-Chun Peng, Hsun-Cheng Tu
  • Patent number: 11215746
    Abstract: A dual display device includes a light source module, a first display panel and a second display panel. The light source module includes a light guide plate, a first prism sheet, a second prism sheet, a color conversion film, and a light source. The light guide plate has a first light exit surface, a second light exit surface and a light incident surface. The first light exit surface has a plurality of first microstructures. The first prism sheet is disposed beside the first light exit surface. The second prism sheet is disposed beside the second light exit surface. The color conversion film is disposed at least one of between the first prism sheet and the first light exit surface and between the second prism sheet and the second light exit surface. The dual display device of the invention has the advantages of thinner thickness and lighter weight.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: January 4, 2022
    Assignee: Coretronic Corporation
    Inventors: Hui-Chuan Chen, Yu-Fan Chen