Patents by Inventor Chi Chang

Chi Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11705076
    Abstract: A cholesteric liquid crystal (LC) composite display device includes a light absorbing substrate, a first and second transparent substrates, a light supplement module arranged between the light absorbing substrate and the first transparent substrate, a control module, a first and second electrode layers respectively formed on the first and second transparent substrates, a first cholesteric LC layer sandwiched between the first and second electrode layers, and a first light absorbing layer disposed on the second transparent substrate. The projection of the first light absorbing layer on the horizontal plane and the projection of the light supplement module on the horizontal plane are arranged in a misaligned manner. The control module is provided for controlling the light supplement module according to the brightness signal. Thereby, when the external brightness is low, the light supplement module enhances the displaying brightness of the cholesteric LC composite display device to meet the usage requirements.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: July 18, 2023
    Assignee: IRIS OPTRONICS CO., LTD.
    Inventors: Chi-Chang Liao, Cheng-Hung Yao, Chieh-Chao Ho
  • Patent number: 11697020
    Abstract: A method for generating stimulation parameters, an electrical stimulation control apparatus and an electrical stimulation system are provided. After receiving a brainwave signal, the brainwave signal is decomposed to obtain a first sub-signal and a second sub-signal. Then, the first sub-signal is analyzed to obtain an intrinsic frequency series, and the second sub-signal is converted to a Boolean signal. Subsequently, the intrinsic frequency series and the Boolean signal, which serve as a set of stimulation parameters, are outputted to the stimulator, enabling the stimulator to generate a stimulus signal.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: July 11, 2023
    Assignee: A-Neuron Electronic Corporation
    Inventors: Chia-Chi Chang, Pei-Chen Lin, Cheng-Hsiang Cheng, Po-Huang Chen
  • Patent number: 11699768
    Abstract: An electrode structure including a top electrode and a bottom electrode located below the top electrode. The top electrode includes a plurality of inner electrodes and an outer electrode connected with the inner electrodes. The inner electrodes are configured to filter a light by wavelength range and filter the light into a polarized light. The inner electrodes extend along a first direction. Each of the inner electrodes includes a metal structure having a first portion and a second portion and a dielectric structure located between the first portion and the second portion of the metal structure. The first portion, the dielectric structure, and the second portion are arranged along a second direction perpendicular to the first direction.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: July 11, 2023
    Assignee: VisEra Technologies Company Ltd.
    Inventors: Kai-Hao Chang, Ching-Hua Li, Yu-Chi Chang
  • Publication number: 20230213173
    Abstract: An electronic device is provided. The electronic device includes a light-emitting element, a cover plate and a light-shielding layer. The cover plate is disposed on the light-emitting element. The light-shielding layer is disposed on a side of the cover plate adjacent to the light-emitting element. The light-shielding layer has an icon area, and the light-shielding layer has a plurality of openings in the icon area. In addition, the plurality of openings have an aperture ratio in the icon area, and the aperture ratio is greater than 0% and less than or equal to 20%.
    Type: Application
    Filed: March 2, 2023
    Publication date: July 6, 2023
    Inventors: Yen-Chi CHANG, Min-Chien SUNG, Po-Tsun KUO, Yu-Kai WANG, Wei-Lun HSIAO
  • Patent number: 11692610
    Abstract: A cable-clamp system includes a clamp and a base structure located within an electronic chassis. The base structure includes an upper region, a first side region, and a second side region. The upper region includes a plurality of cable-receptor cavities for receiving the cables. The first side region includes an opening, and the second side region includes a slot. The clamp includes an engagement surface, a first end, and a second end. The first end includes a hook for insertion into the opening to allow pivoting movement of the clamp relative to the base structure. The second end includes a plunger for retention within the slot. When the clamp pivots downwardly to cause the engagement surface to engage the cables, the plunger is retained within the slot to maintain a clamping force on the cables between the base structure and the clamp.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: July 4, 2023
    Assignee: QUANTA COMPUTER INC.
    Inventors: Yaw-Tzorng Tsorng, Ming-Lung Wang, Yuan-Chi Chang
  • Patent number: 11695018
    Abstract: A display apparatus includes a wireless transmission unit and a display panel. The display panel includes a substrate, a plurality of pixel units and a signal line. The substrate includes a display region and a periphery region. The periphery region surrounds the display region. The pixel units are disposed on the display region. Each of the pixel units includes an active device and a pixel electrode. The active device is electrically connected to the pixel electrode. The signal line is on the periphery region. As viewed from a top view, the signal line has an annular shape having a gap and surrounds the display region.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: July 4, 2023
    Assignee: E Ink Holdings Inc.
    Inventors: Chia-Chi Chang, Chih-Chun Chen, Chi-Ming Wu, Yi-Ching Wang, Jia-Hung Chen, Bo-Tsang Huang, Wei-Yueh Ku
  • Publication number: 20230205058
    Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Lin An CHANG, Pei-Chi CHANG, Ming-Ta CHOU
  • Patent number: 11688789
    Abstract: In some embodiments, a semiconductor device is provided. The semiconductor device includes a source region and a drain region arranged in a semiconductor substrate, where the source region is laterally separated from the drain region. A gate stack is arranged over the semiconductor substrate and between the source region and the drain region. A cap layer is arranged over the gate stack, where a bottom surface of the cap layer contacts a top surface of the gate stack. Sidewall spacers are arranged along sides of the gate stack and the cap layer. A resist protective oxide (RPO) layer is disposed over the cap layer, where the RPO layer extends along sides of the sidewalls spacers to the semiconductor substrate. A contact etch stop layer is arranged over the RPO layer, the source region, and the drain region.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: June 27, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Hsin-Li Cheng, Liang-Tai Kuo, Yu-Chi Chang
  • Publication number: 20230200079
    Abstract: A first type of ferroelectric capacitor comprises electrodes and an insulating layer comprising ferroelectric oxides. In some embodiments, the electrodes and the insulating layer comprise perovskite ferroelectric oxides. A second type of ferroelectric capacitor comprises a ferroelectric insulating layer comprising certain monochalcogenides. Both types of ferroelectric capacitors can have a coercive voltage that is less than one volt. Such capacitors are attractive for use in low-voltage non-volatile embedded memories for next-generation semiconductor manufacturing technologies.
    Type: Application
    Filed: December 17, 2021
    Publication date: June 22, 2023
    Applicant: Intel Corporation
    Inventors: Chia-Ching Lin, Tanay A. Gosavi, Uygar E. Avci, Sou-Chi Chang, Hai Li, Dmitri Evgenievich Nikonov, Kaan Oguz, Ashish Verma Penumatcha, John J. Plombon, Ian Alexander Young
  • Publication number: 20230197643
    Abstract: IC die and/or IC die packages including capacitors with a pyrochlore-based insulator material. The pyrochlore-based insulator material comprises a compound of a species A and a species B, each comprising one or more rare earths or metals. In the pyrochlore-based insulator material, oxygen content is advantageously more than three times and less than four times the amount of either of species A or B with crystalline pyrochlore phases having the composition A2B2O7. Within a capacitor, the pyrochlore-based insulator may be amorphous and/or may have one or more crystalline phases. The pyrochlore-based insulator has an exceedingly high relative permittivity of 50-100, or more. The pyrochlore-based insulator material may be deposited at low temperatures compatible with interconnect metallization processes practiced in IC die manufacture as well as IC die packaging.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Applicant: Intel Corporation
    Inventors: Elijah Karpov, Sou-Chi Chang, Scott Clendenning, Matthew Metz
  • Publication number: 20230199325
    Abstract: The present invention provides an image processing method, including: obtaining a first image using a camera under a display screen; processing the first image using a processor; obtaining a second image using the camera under the display screen; processing the second image using the processor; and generating a superimposed image after superimposing the first sub-image and the second sub-image.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 22, 2023
    Inventors: Shin-Hong KUO, Yu-Chi CHANG
  • Publication number: 20230185136
    Abstract: A cholesteric liquid crystal display device and a driving method for improving non-uniform image quality of the cholesteric liquid crystal display device. The cholesteric liquid crystal display device includes a cholesteric liquid crystal display panel and a liquid crystal drive unit. The cholesteric liquid crystal display panel is composed of multiple row circuit structures and multiple column circuit structures. The liquid crystal driving unit sequentially outputs column driving voltages to a plurality of column circuit structures in a scanning manner. After scanning the multiple column circuit structures, the liquid crystal driving unit applies an unselected voltage to the multiple column circuit structures together with more than 18 times the scanning unit time course, so as to make the brightness of the overall picture more uniform.
    Type: Application
    Filed: December 8, 2022
    Publication date: June 15, 2023
    Inventors: MING-LIANG TSAI, WU-CHANG YANG, CHI-CHANG LIAO
  • Publication number: 20230185121
    Abstract: A cholesteric liquid crystal display device and a control method for reducing inrush current when clearing the screen. The cholesteric liquid crystal display device includes a cholesteric liquid crystal display panel and a liquid crystal drive unit. The cholesteric liquid crystal display panel has a plurality of pixel matrix. After the liquid crystal drive unit receives a data latch enable signal, it applies a reset voltage to the plurality of pixel matrix to clear the screen displayed on the cholesteric liquid crystal display panel. The input time of the data latch enable signal received by the liquid crystal driving unit is different, and the corresponding signal time portion is shifted with each other.
    Type: Application
    Filed: December 8, 2022
    Publication date: June 15, 2023
    Inventors: CHI-WEI LIN, WU-CHANG YANG, CHI-CHANG LIAO
  • Patent number: 11675113
    Abstract: An optical image lens assembly includes a plurality of optical lens elements. The optical lens elements include a plurality of plastic optical lens elements having refractive power and aspheric surfaces. The plastic optical lens elements are formed by an injection molding method and include at least one defined-wavelength light absorbing optical lens element, and the defined-wavelength light absorbing optical lens element includes at least one defined-wavelength light absorbent.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: June 13, 2023
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yeo-Chih Huang, Pei-Chi Chang, Chun-Hung Teng
  • Patent number: 11668293
    Abstract: A micro pump having noise-reduced pressure-releasing structure includes a convergence plate, a valve sheet, a chamber plate, and a micro pump. The convergence plate has a convergence outlet and a discharge outlet. The valve sheet has a valve hole and a discharge recessed portion. The chamber plate has a recessed hole, a fluid determine hole, fluid through holes, and a receiving trough. The micro pump is in the receiving trough. During operation of the micro pump, the fluid is firstly transmitted to the fluid through hole and the fluid determine hole to push the valve sheet, and the fluid determine hole pushes the discharge recessed portion to block the discharge outlet. Then, since the pressure of the fluid at the fluid through hole pushes the valve sheet, the fluid flows through the valve hole so as to be discharged out from the convergence outlet.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: June 6, 2023
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Chung-Wei Kao, Shih-Chang Chen, Chi-Chang Yang, Yung-Lung Han, Chi-Feng Huang, Chun-Yi Kuo, Yang Ku
  • Publication number: 20230167816
    Abstract: A gas transportation device is provided and includes an outer housing, a valve body and an actuator. The outer housing includes an outlet cover, an outlet end, an accommodation space, an inlet cover, and an inlet end. The valve body is in a circular shape and includes a gas outlet plate, a valve plate and a first plate stacked sequentially and disposed within the accommodation space. The actuator is in a circular shape, stacked and disposed on the valve body, includes a second plate, a frame and an actuating component. When the actuator is driven, through the structure of misalignment of the first orifices and the valve openings, the valve body is operated to open a flow path when an airflow is in a forward direction, and the valve body is operated to seal the flow path when the airflow is in a reverse direction.
    Type: Application
    Filed: January 28, 2022
    Publication date: June 1, 2023
    Applicant: Microjet Technology Co., Ltd.
    Inventors: Hao-Jan Mou, Shih-Chang Chen, Chi-Chang Yang, Yung-Lung Han, Chi-Feng Huang, Chang-Yen Tsai, Chun-Yi Kuo
  • Publication number: 20230170361
    Abstract: The optical device includes a first photodiode, a second photodiode, and a hybrid absorber. The hybrid absorber is disposed above the first photodiode and the second photodiode. The hybrid absorber includes a color filter layer and a plurality of metal-insulator-metal structures. The color filter layer includes a first color filter disposed on the first photodiode and a second color filter disposed on the second photodiode, in which the first color filter is different from the second color filter. The plurality of metal-insulator-metal structures are disposed above the first photodiode and free of disposed above the second photodiode.
    Type: Application
    Filed: March 29, 2022
    Publication date: June 1, 2023
    Inventors: Kai-Hao CHANG, An-Li KUO, Chun-Yuan WANG, Shin-Hong KUO, Po-Hsiang WANG, Zong-Ru TU, Yu-Chi CHANG, Chih-Ming WANG
  • Publication number: 20230170368
    Abstract: An image sensor includes a plurality of liquid-lens units, which include: a lower electrode and an upper electrode; a dielectric layer disposed between the lower electrode and the upper electrode; a containment space disposed between the dielectric layer and the upper electrode; and a non-polar liquid and a polar liquid filled into the containment space, wherein the non-polar liquid and the polar liquid are immiscible with each other. The non-polar liquid is configured to occupy a first contact area on the dielectric layer under a first voltage, and a second contact area on the dielectric layer under a second voltage. The first contact area is larger than the second contact area, and the second voltage is higher than the first voltage.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 1, 2023
    Inventors: Wei-Lung TSAI, Huang-Jen CHEN, Ching-Chiang WU, Yu-Chi CHANG
  • Patent number: 11662619
    Abstract: An electronic device includes a display module, a protection cover, a light shielding layer on a bottom surface of the protection cover, a light source on the display module, a light guide plate on the display module and adjacent to the light source, a touch sensitive film above the light guide plate and having a first opening, a first optical adhesive between the touch sensitive film and the protection cover and having a second opening overlapping and communicated with the first opening, and a light shielding element having a portion overlapping the first and second openings. The light shielding element is located on the display module, extends to said portion of the light shielding layer, and is configured to block light passing through the light guide plate, the touch sensitive film, and the first optical adhesive in a non-visible area.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: May 30, 2023
    Assignee: DARWIN PRECISIONS CORPORATION
    Inventors: Yu-An Hsieh, Chi-Chang Chen, Chia-Hsin Chang
  • Patent number: 11664399
    Abstract: The solid-state image sensor includes a semiconductor substrate having first and second photoelectric conversion elements, a color filter layer, and a hybrid layer. The isolation structure is disposed between the first and second photoelectric conversion elements. The color filter layer is disposed above the semiconductor substrate. The hybrid layer is disposed between the semiconductor substrate and the color filter layer. The hybrid layer includes a first partition structure, a second partition structure, and a transparent layer. The first partition structure is disposed to correspond to the isolation structure. The second partition structure is surrounded by the first partition structure. The transparent layer is between the first partition structure and the second partition structure. The refractive index of the first partition structure and the refractive index of the second partition structure are lower than the refractive index of the transparent layer.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: May 30, 2023
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Cheng-Hsuan Lin, Yu-Chi Chang, Zong-Ru Tu