Patents by Inventor CHENG-HUA YU
CHENG-HUA YU 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).
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Patent number: 11953740Abstract: A package structure including a photonic, an electronic die, an encapsulant and a waveguide is provided. The photonic die includes an optical coupler. The electronic die is electrically coupled to the photonic die. The encapsulant laterally encapsulates the photonic die and the electronic die. The waveguide is disposed over the encapsulant and includes an upper surface facing away from the encapsulant. The waveguide includes a first end portion and a second end portion, the first end portion is optically coupled to the optical coupler, and the second end portion has a groove on the upper surface.Type: GrantFiled: May 14, 2021Date of Patent: April 9, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chung-Ming Weng, Chen-Hua Yu, Chung-Shi Liu, Hao-Yi Tsai, Cheng-Chieh Hsieh, Hung-Yi Kuo, Tsung-Yuan Yu, Hua-Kuei Lin, Che-Hsiang Hsu
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Patent number: 11947173Abstract: A package includes a photonic layer on a substrate, the photonic layer including a silicon waveguide coupled to a grating coupler; an interconnect structure over the photonic layer; an electronic die and a first dielectric layer over the interconnect structure, where the electronic die is connected to the interconnect structure; a first substrate bonded to the electronic die and the first dielectric layer; a socket attached to a top surface of the first substrate; and a fiber holder coupled to the first substrate through the socket, where the fiber holder includes a prism that re-orients an optical path of an optical signal.Type: GrantFiled: May 5, 2023Date of Patent: April 2, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chung-Ming Weng, Chen-Hua Yu, Chung-Shi Liu, Hao-Yi Tsai, Cheng-Chieh Hsieh, Hung-Yi Kuo, Tsung-Yuan Yu, Hua-Kuei Lin, Che-Hsiang Hsu
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Publication number: 20240069277Abstract: A semiconductor package includes a first die stack structure and a second die stack structure, an insulating encapsulation, a redistribution structure, at least one prism structure and at least one reflector. The first die stack structure and the second die stack structure are laterally spaced apart from each other along a first direction, and each of the first die stack structure and the second die stack structure comprises an electronic die; and a photonic die electronically communicating with the electronic die. The insulating encapsulation laterally encapsulates the first die stack structure and the second die stack structure. The redistribution structure is disposed on the first die stack structure, the second die stack structure and the insulating encapsulation, and electrically connected to the first die stack structure and the second die stack structure. The at least one prism structure is disposed within the redistribution structure and optically coupled to the photonic die.Type: ApplicationFiled: August 29, 2022Publication date: February 29, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Yi Kuo, Chen-Hua Yu, Cheng-Chieh Hsieh, Che-Hsiang Hsu, Chung-Ming Weng, Tsung-Yuan Yu
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Patent number: 11768652Abstract: A portable computing device may comprise an internal central processing unit (CPU), an internal graphics processing unit (GPU), a communications port to communicate with an external computing device, a first electronic display connected to the internal GPU, a second electronic display connected to the internal GPU, a touch input device to receive touch inputs from a user, and a display mode control unit. The control unit may cause the portable computing device to selectively operate in a dual display operational mode, a direct input operational mode, and an indirect input operational mode.Type: GrantFiled: August 5, 2022Date of Patent: September 26, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mario E. Campos, Hsing-Hung Hsieh, Cheng-Hua Yu
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Publication number: 20230064571Abstract: Examples of nibs for styluses are described. In an example, the nib is made of a base material (for example, a polyamide or a polycarbonate), a conductive material (for example, carbon fiber), and a grey color controlling material (for example, a white powder). The base material is in a range of 70 weight percentage (wt %) to 75 wt %. The conductive material is in a range of 15 wt % to 20 wt %. The grey color controlling material in a range of 5 wt % to 10 wt %.Type: ApplicationFiled: January 31, 2020Publication date: March 2, 2023Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Shih-Jen Chang, Jyun-Cheng Lin, Cheng-Hua Yu, Hogan Hote Yeh
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Publication number: 20220374187Abstract: A portable computing device may comprise an internal central processing unit (CPU), an internal graphics processing unit (GPU), a communications port to communicate with an external computing device, a first electronic display connected to the internal GPU, a second electronic display connected to the internal GPU, a touch input device to receive touch inputs from a user, and a display mode control unit. The control unit may cause the portable computing device to selectively operate in a dual display operational mode, a direct input operational mode, and an indirect input operational mode.Type: ApplicationFiled: August 5, 2022Publication date: November 24, 2022Inventors: Mario E. Campos, Hsing-Hung Hsieh, Cheng-Hua Yu
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Patent number: 11442219Abstract: A lighting system may include a light guide to receive light from a light source; and a reflector plate including a frustrum structure formed on the surface of the reflector plate to receive refracted light from the light guide.Type: GrantFiled: March 5, 2019Date of Patent: September 13, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Super Liao, Kuan-Ting Wu, Cheng-Hua Yu
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Patent number: 11429336Abstract: A portable computing device may comprise an internal central processing unit (CPU), an internal graphics processing unit (GPU), a communications port to communicate with an external computing device, a first electronic display connected to the internal GPU, a second electronic display connected to the internal GPU, a touch input device to receive touch inputs from a user, and a display mode control unit. The control unit may cause the portable computing device to selectively operate in a dual display operational mode, a direct input operational mode, and an indirect input operational mode.Type: GrantFiled: July 23, 2019Date of Patent: August 30, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mario E. Campos, Hsing-Hung Hsieh, Cheng-Hua Yu
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Patent number: 11423812Abstract: In some examples, a pixel comprises a plurality of subpixels, wherein each subpixel includes a micro-motor, a rotatable substrate in which the micro-motor is embedded, and a plurality of micro-light emitting diodes (LEDs) embedded in the rotatable substrate.Type: GrantFiled: December 14, 2017Date of Patent: August 23, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kuan-Ting Wu, Wei-Chung Chen, Cheng-Hua Yu
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Patent number: 11373570Abstract: In one example, a display device can include a gate line break across a plurality of gate lines, a first source driver positioned on a first side of the gate line break, a first gate driver positioned on the first side of the gate line break, a second source driver positioned on a second side of the gate line break, and a second gate driver positioned on the second side of the gate line break.Type: GrantFiled: December 14, 2017Date of Patent: June 28, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Mario E. Campos
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Publication number: 20220180821Abstract: In an example method, a liquid crystal display (LCD) is illuminated using a first number of local dimming zones. A second number of local dimming zones that overlap the first number of local dimming zones is determined. The LCD is illuminated using the second number of local dimming zones.Type: ApplicationFiled: July 19, 2019Publication date: June 9, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Super Liao, Cheng-Hua Yu
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Publication number: 20220156027Abstract: A portable computing device may comprise an internal central processing unit (CPU), an internal graphics processing unit (GPU), a communications port to communicate with an external computing device, a first electronic display connected to the internal GPU, a second electronic display connected to the internal GPU, a touch input device to receive touch inputs from a user, and a display mode control unit. The control unit may cause the portable computing device to selectively operate in a dual display operational mode, a direct input operational mode, and an indirect input operational mode.Type: ApplicationFiled: July 23, 2019Publication date: May 19, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Mario E. Campos, Hsing-Hung Hsieh, Cheng-Hua Yu
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Patent number: 11308883Abstract: In an example implementation according to aspects of the present disclosure, a system including a controller to receive a temperature value, from a temperature sensor corresponding to a sub-pixel in an organic light emitting display. The controller calculates a luminous value of the sub-pixel based on the temperature value and a function corresponding to a degradation of luminosity over time and temperature. The controller determines, based on the luminous value, a corrected luminous value corresponding to a target luminous value. The controller retrieves a voltage value from a second database, wherein the second database comprises a luminous-voltage relationship. The controller applies the voltage value to the sub-pixel.Type: GrantFiled: September 26, 2018Date of Patent: April 19, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Ann Alejandro Villegas
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Publication number: 20220100037Abstract: A lighting system may include a light guide to receive light from a light source; and a reflector plate including a frustrum structure formed on the surface of the reflector plate to receive refracted light from the light guide.Type: ApplicationFiled: March 5, 2019Publication date: March 31, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Super Liao, Kuan-Ting Wu, Cheng-Hua Yu
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Patent number: 11244588Abstract: A display device includes pixels, a serial-to-parallel converter (SPC), a row driver, a column driver, and a switch. The pixels are arranged in rows and columns which include a first column and a first row. A first pixel resides at an intersection of the first row and first column. The SPC extracts, from a signal sent by a graphics controller, pixel data and a command. The row driver initiates a refresh of the pixels residing in the first row based on the pixel data. The column driver transmits the pixel data to the first column. During the refresh, the switch allows transmission of the pixel data to the first pixel when the command indicates that the first pixel is to be refreshed and prevents transmission of pixel data to the first pixel when the command indicates that the first pixel is not to be refreshed.Type: GrantFiled: April 24, 2018Date of Patent: February 8, 2022Inventors: Lee Atkinson, Cheng-Hua Yu
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Publication number: 20210375174Abstract: In one example, a display device can include a gate line break across a plurality of gate lines, a first source driver positioned on a first side of the gate line break, a first gate driver positioned on the first side of the gate line break, a second source driver positioned on a second side of the gate line break, and a second gate driver positioned on the second side of the gate line break.Type: ApplicationFiled: December 14, 2017Publication date: December 2, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Mario E. Campos
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Publication number: 20210312875Abstract: A controller to control the light intensity of a first light source and a second light source based on a video signal of a video to be displayed on the display, the decay curve, and usage data regarding the first light source and second light source.Type: ApplicationFiled: November 27, 2018Publication date: October 7, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Ann Alejandro Villegas
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Publication number: 20210280099Abstract: In some examples, a pixel comprises a plurality of subpixels, wherein each subpixel includes a micro-motor, a rotatable substrate in which the micro-motor is embedded, and a plurality of micro-light emitting diodes (LEDs) embedded in the rotatable substrate.Type: ApplicationFiled: December 14, 2017Publication date: September 9, 2021Inventors: Kuan-Ting Wu, Wei-Chung Chen, Cheng-Hua Yu
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Publication number: 20210241693Abstract: In an example implementation according to aspects of the present disclosure, a system including a controller to receive a temperature value, from a temperature sensor corresponding to a sub-pixel in an organic light emitting display. The controller calculates a luminous value of the sub-pixel based on the temperature value and a function corresponding to a degradation of luminosity over time and temperature. The controller determines, based on the luminous value, a corrected luminous value corresponding to a target luminous value. The controller retrieves a voltage value from a second database, wherein the second database comprises a luminous-voltage relationship. The controller applies the voltage value to the sub-pixel.Type: ApplicationFiled: September 26, 2018Publication date: August 5, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Hsing-Hung Hsieh, Cheng-Hua Yu, Ann Alejandro Villegas
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Patent number: 11079638Abstract: In one example, a display device may include a display panel having a light guide plate, a printed circuit board (PCB) to generate a driving signal to drive the display panel, a driving integrated circuit (IC) mounted on the display panel to process the driving signal, a timing controller (TCON) integrated into the driving IC to control driving of the display panel, and a flexible printed circuit to electrically connect the driving IC and the PCB. The PCB may be disposed behind the driving IC.Type: GrantFiled: June 13, 2018Date of Patent: August 3, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Cheng-Hua Yu, Feng-Cheng Lin, Shan-Chih Chen, Chih-Ting Lai