Patents by Inventor Wen-Fa Hsu
Wen-Fa Hsu 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: 10726805Abstract: A display driving apparatus applied to a panel is disclosed. The panel displays a first image with a first refresh rate. A first refresh cycle corresponding to the first refresh rate includes a refresh period and at least one non-refresh period. The display driving apparatus includes a real-time determination module and a data processing module. The real-time determination module is coupled to the panel and used to immediately determine whether the panel wants to replace the originally displayed first image with a second image during the first refresh cycle. The data processing module is coupled to the real-time determination module and the panel. If a determination result of the real-time determination module is yes, the data processing module immediately controls the panel to start to display the second image at a first time during the first refresh cycle.Type: GrantFiled: August 31, 2018Date of Patent: July 28, 2020Assignee: Raydium Semiconductor CorporationInventors: Chih Chuan Huang, Yu-Yuan Chang, Wen-Fa Hsu
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Publication number: 20190073979Abstract: A display driving apparatus applied to a panel is disclosed. The panel displays a first image with a first refresh rate. A first refresh cycle corresponding to the first refresh rate includes a refresh period and at least one non-refresh period. The display driving apparatus includes a real-time determination module and a data processing module. The real-time determination module is coupled to the panel and used to immediately determine whether the panel wants to replace the originally displayed first image with a second image during the first refresh cycle. The data processing module is coupled to the real-time determination module and the panel. If a determination result of the real-time determination module is yes, the data processing module immediately controls the panel to start to display the second image at a first time during the first refresh cycle.Type: ApplicationFiled: August 31, 2018Publication date: March 7, 2019Inventors: CHIH CHUAN HUANG, YU-YUAN CHANG, WEN-FA HSU
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Patent number: 8902203Abstract: A liquid crystal display comprises a power supply, a pulse adjustment circuit, and a gate driver. The pulse adjustment circuit is connected between the power supply and the gate driver. The power supply provides power signals. The pulse adjustment circuit adjusts the plurality of pulses of the power signals or selects the appropriate voltage levels for the power signals to have cutting angles or enlarged amplitudes, whereby the influence of the feedthrough voltage on the thin film transistors of the driving circuit would be reduced so that the display quality of the liquid crystal display is improved.Type: GrantFiled: April 15, 2011Date of Patent: December 2, 2014Assignee: AU Optronics Corp.Inventors: Wen Fa Hsu, Chi Mao Hung
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Patent number: 8502764Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.Type: GrantFiled: January 31, 2011Date of Patent: August 6, 2013Assignee: AU Optronics CorporationInventors: Wen-Fa Hsu, Chien-Yu Yi
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Patent number: 8154495Abstract: The present invention discloses a method for improving the image quality of a MSHD (Multi-Switch Half source Driving) display panel and a device used the same. The method comprising following steps: First, using a polarity-line-inversion source driver to drive a plurality of pixels of a MSHD display panel, then a frame displaying in polarity-dot-inversion. The device comprises a polarity-line-inversion source driver and a MSHD display panel, wherein the polarity-line-inversion source driver drives a plurality of pixels of the MSHD display panel. The pixels of the MSHD display panel displays a frame in polarity-dot-inversion form.Type: GrantFiled: December 29, 2006Date of Patent: April 10, 2012Assignee: Au Optronics CorporationInventor: Wen-Fa Hsu
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Publication number: 20110255020Abstract: A method of driving pixels of a liquid crystal display, a pixel driving device, and a liquid crystal display having the same are provided. The liquid crystal display includes a liquid crystal panel and a pixel driving device, wherein the pixel driving device selectively outputs driving signals having different polarity permutations based on the structure of the display units in the liquid crystal panel.Type: ApplicationFiled: April 15, 2011Publication date: October 20, 2011Inventors: Chun-Lin Yu, Kuan-Hung Liu, Wen-Fa Hsu
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Publication number: 20110193833Abstract: A liquid crystal display comprises a power supply, a pulse adjustment circuit, and a gate driver. The pulse adjustment circuit is connected between the power supply and the gate driver. The power supply provides power signals. The pulse adjustment circuit adjusts the plurality of pulses of the power signals or selects the appropriate voltage levels for the power signals to have cutting angles or enlarged amplitudes, whereby the influence of the feedthrough voltage on the thin film transistors of the driving circuit would be reduced so that the display quality of the liquid crystal display is improved.Type: ApplicationFiled: April 15, 2011Publication date: August 11, 2011Applicant: AU OPTRONICS CORP.Inventors: Wen Fa Hsu, Chi Mao Hung
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Publication number: 20110122113Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.Type: ApplicationFiled: January 31, 2011Publication date: May 26, 2011Applicant: AU OPTRONICS CORPORATIONInventors: Wen-Fa Hsu, Chien-Yu Yi
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Patent number: 7924255Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.Type: GrantFiled: April 19, 2005Date of Patent: April 12, 2011Assignee: AU Optronics Corp.Inventors: Wen-Fa Hsu, Chien-Yu Yi
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Patent number: 7746335Abstract: A display device for a liquid crystal display (LCD) panel using a RGBW color filter and a display method thereof are provided. The display device includes a source driver and a MSHD(Multi-Switch Half source Driving) display panel. The display method includes arranging the RGB color filter onto the MSHD display panel; using the source driver to drive a plurality of pixels of the MSHD display panel in a polarity-dot-inversion form; and displaying a frame formed of the plurality of pixels of the MSHD display panel which are in polarity-dot-inversion form via the light passing through the RGBW color filter.Type: GrantFiled: November 15, 2006Date of Patent: June 29, 2010Assignee: Au Optronics CorporationInventor: Wen-Fa Hsu
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Publication number: 20080225035Abstract: A liquid crystal display comprises a power supply, a pulse adjustment circuit, and a gate driver. The pulse adjustment circuit is connected between the power supply and the gate driver. The power supply provides power signals. The pulse adjustment circuit adjusts the plurality of pulses of the power signals or selects the appropriate voltage levels for the power signals to have cutting angles or enlarged amplitudes, whereby the influence of the feedthrough voltage on the thin film transistors of the driving circuit would be reduced so that the display quality of the liquid crystal display is improved.Type: ApplicationFiled: January 9, 2008Publication date: September 18, 2008Applicant: AU OPTRONICS CORP.Inventors: Wen Fa Hsu, Chi Mao Hung
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Publication number: 20080074369Abstract: A display device for a liquid crystal display (LCD) panel using a RGBW color filter and a display method thereof are provided. The display device includes a source driver and a MSHD(Multi-Switch Half source Driving) display panel. The display method includes arranging the RGB color filter onto the MSHD display panel; using the source driver to drive a plurality of pixels of the MSHD display panel in a polarity-dot-inversion form; and displaying a frame formed of the plurality of pixels of the MSHD display panel which are in polarity-dot-inversion form via the light passing through the RGBW color filter.Type: ApplicationFiled: November 15, 2006Publication date: March 27, 2008Applicant: AU OPTRONICS CORPORATIONInventor: Wen-Fa Hsu
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Publication number: 20080049006Abstract: A display and its power-saving apparatus and method are provided. The power-saving method is adapted for a display with a backlight module. The power-saving method of the present invention includes the following steps. First, the brightness of the backlight module is adjusted by an adjusting signal. After then, the refresh frequency of the display panel is determined by the display brightness of the backlight module, wherein the refresh frequency of the display panel is proportional to the display brightness level achieved by said backlight module.Type: ApplicationFiled: November 9, 2006Publication date: February 28, 2008Applicant: Au Optronics CorporationInventors: Chien-Yu Yi, Wen-Fa Hsu
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Publication number: 20080048963Abstract: The present invention discloses a method for improving the image quality of a MSHD (Multi-Switch Half source Driving) display panel and a device used the same. The method comprising following steps: First, using a polarity-line-inversion source driver to drive a plurality of pixels of a MSHD display panel, then a frame displaying in polarity-dot-inversion. The device comprises a polarity-line-inversion source driver and a MSHD display panel, wherein the polarity-line-inversion source driver drives a plurality of pixels of the MSHD display panel. The pixels of the MSHD display panel displays a frame in polarity-dot-inversion form.Type: ApplicationFiled: December 29, 2006Publication date: February 28, 2008Applicant: Au Optronics CorporationInventor: Wen-Fa Hsu
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Publication number: 20070290980Abstract: A digital-to-analog conversion unit, and a driving apparatus and a panel display apparatus using the same are provided. A driving voltage output from the digital-to-analog conversion unit can be a positive polarity voltage or a negative polarity voltage, wherein the driving voltage output from an output buffer is a positive polarity voltage and the driving voltage output from an output inverter is a negative polarity voltage. The apparatus only needs one set of grayscale voltage so that the layout area of the apparatus, and the flicker and the residual images of the display panel can be reduced.Type: ApplicationFiled: November 15, 2006Publication date: December 20, 2007Applicant: QUANTA DISPLAY INC.Inventors: Feng-Shou Lin, Yu-Yuan Chang, Kuo-Liang Shen, Wen-Fa Hsu
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Publication number: 20070242007Abstract: A display capable of adjusting its driving circuits according to an input resolution includes an active organic light emitting unit, a time data controller, a gate driving circuit and a source driving circuit. The time data controller includes a video data determining unit for determining a resolution of received video data and outputting a determination signal, and a controller for generating a data signal and a control signal according to the determination signal. The gate driving circuit is coupled to the time data controller and the plurality of scan lines, utilized to drive gates of pixels according to the control signal. The source driving circuit is coupled to the time data controller and the plurality of data lines, utilized to drive sources of pixels according to the data signal.Type: ApplicationFiled: October 12, 2006Publication date: October 18, 2007Inventors: I-Shu Lee, Wen-Fa Hsu, Yu-Yuan Chang
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Publication number: 20060092109Abstract: A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.Type: ApplicationFiled: April 19, 2005Publication date: May 4, 2006Inventors: Wen-Fa Hsu, Chien-Yu Yi