Patents by Inventor Hsiu-Hui Yang
Hsiu-Hui Yang 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: 11961919Abstract: A method of forming a semiconductor device includes: forming a fin protruding above a substrate, where a top portion of the fin comprises a layer stack that includes alternating layers of a first semiconductor material and a second semiconductor material; forming a dummy gate structure over the fin; forming openings in the fin on opposing sides of the dummy gate structure; forming source/drain regions in the openings; removing the dummy gate structure to expose the first semiconductor material and the second semiconductor material under the dummy gate structure; performing a first etching process to selectively remove the exposed first semiconductor material, where after the first etching process, the exposed second semiconductor material form nanostructures, where each of the nanostructures has a first shape; and after the first etching process, performing a second etching process to reshape each of the nanostructures into a second shape different from the first shape.Type: GrantFiled: March 21, 2022Date of Patent: April 16, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Cheng-Chung Chang, Hsiu-Hao Tsao, Ming-Jhe Sie, Shun-Hui Yang, Chen-Huang Huang, An Chyi Wei, Ryan Chia-Jen Chen
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Patent number: 11942015Abstract: A source driver, including a plurality of channel circuits, each of the plurality of channel circuits including a first digital-to-analog converter (DAC), a second DAC, a first switch, a second switch and an output buffer circuit, is provided. The output terminal of the output buffer circuit is configured to be coupled to a data line of a display panel. An output terminal of the first DAC is coupled to a first input terminal among the input terminals of the output buffer circuit. An output terminal of the second DAC is coupled to a second input terminal among the input terminals of the output buffer circuit. The first switch is disposed along a first signal path between the output terminal of the first DAC and the output terminal of the output buffer circuit. The second switch is disposed along a second signal path between the output terminal of the second DAC and the output terminal of the output buffer circuit.Type: GrantFiled: October 20, 2021Date of Patent: March 26, 2024Assignee: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 11823602Abstract: A layout arrangement of a driver integrated circuit includes multiple output pads, a plurality of switching circuits, and multiple data channel circuits. The output pads include a first output pad and a second output pad and are configurable to be coupled to a plurality of data lines. The switching circuits include a first switching circuit. A first selection terminal of the first switching circuit is coupled to the first output pad via a first connecting wire. A second selection terminal of the first switching circuit is coupled to the second output pad via a second connecting wire. The data channel circuits include a first data channel circuit. An output terminal of the first data channel circuit is coupled to a common terminal of the first switching circuit via a third connecting wire. The third connecting wire is longer than the first connecting wire and the second connecting wire.Type: GrantFiled: April 25, 2022Date of Patent: November 21, 2023Assignee: Novatek Microelectronics Corp.Inventors: Hsiu-Hui Yang, Yu-Shao Liu
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Patent number: 11551600Abstract: A display panel is provided. The display panel includes a pixel array, multiple data lines and first scan lines. The pixel array is arranged in multiple pixel rows by multiple pixel columns, and includes a first pixel row, a second pixel row, and a third pixel row which are adjacent pixel rows. The first scan line is coupled to multiple first pixel groups. Each first pixel group includes multiple first pixels in the first pixel row and multiple second pixels in the second pixel row adjacent to the first pixel row. A display driving circuit for driving a display panel is also provided.Type: GrantFiled: January 14, 2021Date of Patent: January 10, 2023Assignee: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 11494024Abstract: A signal processing apparatus includes a first signal processing circuit and the second signal processing circuit. The first signal processing circuit receives a first signal. The first signal processing circuit has a power end connecting to a first voltage and a reference ground end. The second signal processing circuit receives a second signal. The second signal processing circuit has a power end which is electrically coupled to the reference ground end of the first signal processing circuit or equals the reference ground end of the first signal processing circuit. The second signal processing circuit has a reference ground end connecting to a second voltage.Type: GrantFiled: August 13, 2020Date of Patent: November 8, 2022Assignee: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Publication number: 20220246077Abstract: A layout arrangement of a driver integrated circuit includes multiple output pads, a plurality of switching circuits, and multiple data channel circuits. The output pads include a first output pad and a second output pad and are configurable to be coupled to a plurality of data lines. The switching circuits include a first switching circuit. A first selection terminal of the first switching circuit is coupled to the first output pad via a first connecting wire. A second selection terminal of the first switching circuit is coupled to the second output pad via a second connecting wire. The data channel circuits include a first data channel circuit. An output terminal of the first data channel circuit is coupled to a common terminal of the first switching circuit via a third connecting wire. The third connecting wire is longer than the first connecting wire and the second connecting wire.Type: ApplicationFiled: April 25, 2022Publication date: August 4, 2022Applicant: Novatek Microelectronics Corp.Inventors: Hsiu-Hui Yang, Yu-Shao Liu
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Patent number: 11386863Abstract: An output circuit of a driver includes a plurality of output nodes, a first output buffer group and a multiplexer. The first output buffer group is configured to output data to the plurality of output nodes, wherein each output buffer in the first output buffer group is configured to output data to at least two output nodes among the plurality of output nodes. The multiplexer, coupled between the plurality of output nodes and the first output buffer group, is configured to select to couple each output buffer in the first output buffer group to one of the plurality of output nodes.Type: GrantFiled: July 17, 2019Date of Patent: July 12, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Hsiu-Hui Yang, Yen-Cheng Cheng, Chin-Hung Hsu
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Patent number: 11367373Abstract: A driver integrated circuit, including multiple output pads, multiple switching circuits, and multiple data channel circuits, is provided. The output pads and the switching circuits are arranged in a pad area of the driver integrated circuit. The output pads include a first output pad and a second output pad, and the switching circuits include a first switching circuit. A first selection terminal of the first switching circuit is coupled to the first output pad. A second selection terminal of the first switching circuit is coupled to the second output pad. The data channel circuits are arranged in a function circuit area of the driver integrated circuit. The data channel circuits include a first data channel circuit. An output terminal of the first data channel circuit is coupled to a common terminal of the first switching circuit.Type: GrantFiled: February 4, 2021Date of Patent: June 21, 2022Assignee: Novatek Microelectronics Corp.Inventors: Hsiu-Hui Yang, Yu-Shao Liu
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Publication number: 20220044618Abstract: A source driver, including a plurality of channel circuits, each of the plurality of channel circuits including a first digital-to-analog converter (DAC), a second DAC, a first switch, a second switch and an output buffer circuit, is provided. The output terminal of the output buffer circuit is configured to be coupled to a data line of a display panel. An output terminal of the first DAC is coupled to a first input terminal among the input terminals of the output buffer circuit. An output terminal of the second DAC is coupled to a second input terminal among the input terminals of the output buffer circuit. The first switch is disposed along a first signal path between the output terminal of the first DAC and the output terminal of the output buffer circuit. The second switch is disposed along a second signal path between the output terminal of the second DAC and the output terminal of the output buffer circuit.Type: ApplicationFiled: October 20, 2021Publication date: February 10, 2022Applicant: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 11231768Abstract: The present invention provides a method of a controller, for controlling a plurality of drivers, each coupled to a panel having a plurality of areas and configured to control at least one of the areas of the panel. The method includes steps of: controlling each of the drivers to perform finger touch detection in a first finger detection mode and perform stylus detection in a first stylus detection mode; when a finger touch is detected on a first area in the first finger detection mode, controlling a first driver corresponding to the first area to perform finger touch detection in a second finger detection mode on the first area; and when a stylus is detected on a second area in the first stylus detection mode, controlling a second driver corresponding to the second area to perform stylus detection in a second stylus detection mode on the second area.Type: GrantFiled: August 31, 2020Date of Patent: January 25, 2022Assignee: NOVATEK Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang, Wei-Kang Tsai
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Patent number: 11158234Abstract: A channel circuit of a source driver, including a first digital-to-analog converter (DAC), a second DAC, a first switch, a second switch and an output buffer circuit, is provided. The output terminal of the output buffer circuit is configured to be coupled to a data line of a display panel. An output terminal of the first DAC is coupled to a first input terminal among the input terminals of the output buffer circuit. An output terminal of the second DAC is coupled to a second input terminal among the input terminals of the output buffer circuit. The first switch is disposed along a first signal path between the output terminal of the first DAC and the output terminal of the output buffer circuit. The second switch is disposed along a second signal path between the output terminal of the second DAC and the output terminal of the output buffer circuit.Type: GrantFiled: July 22, 2019Date of Patent: October 26, 2021Assignee: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 11099675Abstract: A display device, an operation, a driving circuit and a timing control circuit are provided. The display device includes a touch display panel, the driving circuit and the timing control circuit. The driving circuit drives the touch display panel to display image frames and perform touch detection. The timing control circuit outputs display data to the driving circuit through a data transmission path during a display period to display the image frame on the touch display panel. The driving circuit outputs touch detection data corresponding to the touch detection to the timing control circuit through the same data transmission path during a touch detection period.Type: GrantFiled: April 23, 2020Date of Patent: August 24, 2021Assignee: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Publication number: 20210225248Abstract: A display panel is provided. The display panel includes a pixel array, multiple data lines and first scan lines. The pixel array is arranged in multiple pixel rows by multiple pixel columns, and includes a first pixel row, a second pixel row, and a third pixel row which are adjacent pixel rows. The first scan line is coupled to multiple first pixel groups. Each first pixel group includes multiple first pixels in the first pixel row and multiple second pixels in the second pixel row adjacent to the first pixel row. A display driving circuit for driving a display panel is also provided.Type: ApplicationFiled: January 14, 2021Publication date: July 22, 2021Applicant: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Patent number: 10991290Abstract: Control methods of a channel setting module applied to a display panel are provided. The display panel has gate lines, source lines, and pixels. The pixels are arranged in matrix. The pixels disposed at the same row are electrically connected to the same gate line, and the pixels disposed at the same column are electrically connected to the same source line. The adoption of the channel setting module reduces the control signals required by the source lines. The channel setting module includes operational amplifiers and de-mux switches, and the control methods dynamically determine conduction states of the de-mux switches. The voltage outputs of the operational amplifiers are selectively outputted to the source lines, depending on conduction statuses of the de-mux switches. By applying the control methods, the interference between the source lines are reduced, and the instantaneous overshoots/undershoots of floating channels are depressed.Type: GrantFiled: October 7, 2020Date of Patent: April 27, 2021Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Hsiu-Hui Yang, Yu-Shao Liu, Chin-Hung Hsu, Yen-Cheng Cheng
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Patent number: 10977973Abstract: A display device and a detection method applied to the display device are provided. The display device includes a display panel, a source control circuit, and a leakage estimation circuit. The display panel includes pixels being arranged in M columns, wherein at least one panel-partition is defined on the display panel. The source control circuit includes M source drivers which respectively provide data voltages to the M columns of pixels. The leakage estimation circuit includes an evaluation circuit, a defect detection circuit, and a mode-switch. The evaluation circuit controls the defect detection circuit to perform a leakage estimation procedure so that a leakage current corresponding to the panel-partition is estimated when the at least one mode-switch is turned on.Type: GrantFiled: September 25, 2019Date of Patent: April 13, 2021Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Publication number: 20210090479Abstract: A display device and a detection method applied to the display device are provided. The display device includes a display panel, a source control circuit, and a leakage estimation circuit. The display panel includes pixels being arranged in M columns, wherein at least one panel-partition is defined on the display panel. The source control circuit includes M source drivers which respectively provide data voltages to the M columns of pixels. The leakage estimation circuit includes an evaluation circuit, a defect detection circuit, and a mode-switch. The evaluation circuit controls the defect detection circuit to perform a leakage estimation procedure so that a leakage current corresponding to the panel-partition is estimated when the at least one mode-switch is turned on.Type: ApplicationFiled: September 25, 2019Publication date: March 25, 2021Inventors: Yen-Cheng CHENG, Hsiu-Hui YANG
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Publication number: 20210048912Abstract: A signal processing apparatus includes a first signal processing circuit and the second signal processing circuit. The first signal processing circuit receives a first signal. The first signal processing circuit has a power end connecting to a first voltage and a reference ground end. The second signal processing circuit receives a second signal. The second signal processing circuit has a power end which is electrically coupled to the reference ground end of the first signal processing circuit or equals the reference ground end of the first signal processing circuit. The second signal processing circuit has a reference ground end connecting to a second voltage.Type: ApplicationFiled: August 13, 2020Publication date: February 18, 2021Applicant: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Publication number: 20210020135Abstract: An output circuit of a driver includes a plurality of output nodes, a first output buffer group and a multiplexer. The first output buffer group is configured to output data to the plurality of output nodes, wherein each output buffer in the first output buffer group is configured to output data to at least two output nodes among the plurality of output nodes. The multiplexer, coupled between the plurality of output nodes and the first output buffer group, is configured to select to couple each output buffer in the first output buffer group to one of the plurality of output nodes.Type: ApplicationFiled: July 17, 2019Publication date: January 21, 2021Inventors: Hsiu-Hui Yang, Yen-Cheng Cheng, Chin-Hung Hsu
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Publication number: 20200027387Abstract: A channel circuit of a source driver, including a first digital-to-analog converter (DAC), a second DAC, a first switch, a second switch and an output buffer circuit, is provided. The output terminal of the output buffer circuit is configured to be coupled to a data line of a display panel. An output terminal of the first DAC is coupled to a first input terminal among the input terminals of the output buffer circuit. An output terminal of the second DAC is coupled to a second input terminal among the input terminals of the output buffer circuit. The first switch is disposed along a first signal path between the output terminal of the first DAC and the output terminal of the output buffer circuit. The second switch is disposed along a second signal path between the output terminal of the second DAC and the output terminal of the output buffer circuit.Type: ApplicationFiled: July 22, 2019Publication date: January 23, 2020Applicant: Novatek Microelectronics Corp.Inventors: Yen-Cheng Cheng, Hsiu-Hui Yang
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Publication number: 20160118010Abstract: A display driving apparatus includes a timing controller, for generating and outputting a first clock signal and a first data signal; and a plurality of source drivers, each source driver receiving the first clock signal and the first data signal, wherein there is a respective first skew value between the received first clock signal and the received first data signal for each source driver; wherein each source driver adjusts the respective first skew value to a respective second skew value.Type: ApplicationFiled: May 14, 2015Publication date: April 28, 2016Inventors: Chin-Hung Hsu, Hsiu-Hui Yang, Te-Hsien Kuo