Patents by Inventor Wenwu Liao
Wenwu Liao 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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Publication number: 20240420655Abstract: The display device includes a control module, a display module, and a functional module. The control module includes a system board, an EDP connector, and a timing driving chip. The EDP connector is connected to the system board and the timing chip. The display module is connected to the timing driving chip. The functional module, connected to the timing driving chip, is configured to detect a touch action in response to the second type signal. The EDP connector is configured to convert a display signal provided by the system board into a first type signal. The timing driving chip is configured to transmit the first type signal to the display module. The EDP connector is configured to convert a touch signal provided by the system board into a second type signal, and the timing driving chip is configured to transmit the second type signal to the functional module.Type: ApplicationFiled: August 29, 2023Publication date: December 19, 2024Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu LIAO
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Patent number: 11996063Abstract: An LCD panel, a driving method and a display device are provided. The LCD panel includes a fixed refresh rate mode or a dynamic refresh rate mode. In response to the variable refresh rate, the LCD panel provides a variable common voltage to the first electrode plate of the storage capacitor, thereby dynamically improving or eliminating the issues of the low voltage of the pixel electrode.Type: GrantFiled: May 28, 2021Date of Patent: May 28, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu Liao
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Patent number: 11961449Abstract: A liquid crystal display (LCD) and a method for compensating current leakage of the LCD are provided. The LCD includes a thin film transistor (TFT) array having a plurality of TFTs, a gate driver configured to provide a scan signal, a source driver configured to provide a data signal, and a timing controller electrically connected to the gate driver and the source driver. The timing controller is configured to adjust a current refresh frequency according to a current frame rate and to transfer a control signal to the gate driver when the current refresh frequency is lower than a threshold frequency such that the gate driver increase a charging time of the plurality of TFTs according to the control signal.Type: GrantFiled: August 7, 2020Date of Patent: April 16, 2024Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Wenwu Liao, Mingwei Chen
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Publication number: 20230335076Abstract: An LCD panel, a driving method and a display device are provided. The LCD panel includes a fixed refresh rate mode or a dynamic refresh rate mode. In response to the variable refresh rate, the LCD panel provides a variable common voltage to the first electrode plate of the storage capacitor, thereby dynamically improving or eliminating the issues of the low voltage of the pixel electrode.Type: ApplicationFiled: May 28, 2021Publication date: October 19, 2023Inventor: Wenwu LIAO
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Patent number: 11790824Abstract: A display method, a display device, and a display apparatus are provided. The display method includes following steps: obtaining a current frame display period corresponding to a current refresh frequency of a GPU, wherein the current frame display period is a sum of a duration of a frame display and a duration of a vertical blank region; determining a start time and a lasting duration of the vertical blank region based on a preset frame display duration and the current frame display period; and controlling a target image to be displayed from the start time according to the lasting duration.Type: GrantFiled: August 4, 2020Date of Patent: October 17, 2023Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu Liao
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Patent number: 11676551Abstract: Embodiments of the present disclosure provide a gamma voltage correction method and device, and a display device, wherein a candidate refresh rate last determined in a current frame period of a display panel is used as a target refresh rate, and a gamma voltage corresponding to the target refresh rate is used as a gamma voltage at a display phase in a next frame period of the display panel to perform brightness correction, so that flashing of the display panel during refresh rate switching is prevented, and storage resources are saved.Type: GrantFiled: December 25, 2020Date of Patent: June 13, 2023Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu Liao
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Publication number: 20230117704Abstract: A liquid crystal display (LCD) and a method for compensating current leakage of the LCD are provided. The LCD includes a thin film transistor (TFT) array having a plurality of TFTs, a gate driver configured to provide a scan signal, a source driver configured to provide a data signal, and a timing controller electrically connected to the gate driver and the source driver. The timing controller is configured to adjust a current refresh frequency according to a current frame rate and to transfer a control signal to the gate driver when the current refresh frequency is lower than a threshold frequency such that the gate driver increase a charging time of the plurality of TFTs according to the control signal.Type: ApplicationFiled: August 7, 2020Publication date: April 20, 2023Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Wenwu LIAO, Mingwei CHEN
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Publication number: 20230108255Abstract: A display method, a display device, and a display apparatus are provided. The display method includes following steps: obtaining a current frame display period corresponding to a current refresh frequency of a GPU, wherein the current frame display period is a sum of a duration of a frame display and a duration of a vertical blank region; determining a start time and a lasting duration of the vertical blank region based on a preset frame display duration and the current frame display period; and controlling a target image to be displayed from the start time according to the lasting duration.Type: ApplicationFiled: August 4, 2020Publication date: April 6, 2023Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu LIAO
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Publication number: 20220406266Abstract: Embodiments of the present disclosure provide a gamma voltage correction method and device, and a display device, wherein a candidate refresh rate last determined in a current frame period of a display panel is used as a target refresh rate, and a gamma voltage corresponding to the target refresh rate is used as a gamma voltage at a display phase in a next frame period of the display panel to perform brightness correction, so that flashing of the display panel during refresh rate switching is prevented, and storage resources are saved.Type: ApplicationFiled: December 25, 2020Publication date: December 22, 2022Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventor: Wenwu LIAO
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Publication number: 20220406239Abstract: A gamma voltage correction method, a gamma voltage correction device, and a display device are provided. The gamma voltage correction method is performed on a final confirmed gamma voltage curve of a current frame period in a display stage of a next frame period. Therefore, changes in a gamma voltage curve of the display device may follow changes in frequency, i.e., the frequency and the gamma voltage curve may be consistent. As a result, a brightness difference of the display device caused by changes in frequency may be reduced and flickering may be prevented.Type: ApplicationFiled: December 22, 2020Publication date: December 22, 2022Applicant: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Wenwu LIAO, Bin ZHAO, Mingjong JOU, Yuhua CHANG, Dan CAO, Jianjian YING
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Patent number: 11178313Abstract: Disclosed are an image display method, a device, a smart TV, and a readable storage medium. The image display method includes: acquiring an original image signal of a current frame image; extracting evenly spaced rows of data from the original image signal of the current frame image to form a pre-processed image signal; acquiring each row of data in the pre-processed image signal, scanning the each row of data, synchronously acquiring at least two rows of scan images corresponding to the each row of data to form a display image of the current frame image; and acquiring a frame frequency of the original image signal and a vertical synchronization signal of the display image, controlling a period of a backlight pulse signal according to the frame frequency, controlling a duty cycle of the backlight pulse signal according to a period of the vertical synchronization signal, and displaying the display image.Type: GrantFiled: May 8, 2019Date of Patent: November 16, 2021Assignee: SHENZHEN TCL NEW TECHNOLOGY CO., LTD.Inventors: Wenwu Liao, Hongwei Bai
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Publication number: 20200280657Abstract: Disclosed are an image display method, a device, a smart TV, and a readable storage medium. The image display method includes: acquiring an original image signal of a current frame image; extracting evenly spaced rows of data from the original image signal of the current frame image to form a pre-processed image signal; acquiring each row of data in the pre-processed image signal, scanning the each row of data, synchronously acquiring at least two rows of scan images corresponding to the each row of data to form a display image of the current frame image; and acquiring a frame frequency of the original image signal and a vertical synchronization signal of the display image, controlling a period of a backlight pulse signal according to the frame frequency, controlling a duty cycle of the backlight pulse signal according to a period of the vertical synchronization signal, and displaying the display image.Type: ApplicationFiled: May 8, 2019Publication date: September 3, 2020Inventors: Wenwu Liao, Hongwei Bai