Patents by Inventor Li-Ru Lyu
Li-Ru Lyu 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: 8884859Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value in a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: GrantFiled: April 19, 2011Date of Patent: November 11, 2014Assignee: AU Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Patent number: 8866712Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value in a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: GrantFiled: May 17, 2013Date of Patent: October 21, 2014Assignee: AU Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Patent number: 8576251Abstract: A scaling-up control method and a scaling-up control apparatus are used in a display device. The display device includes a scaler for converting an original image signal into an output image signal by performing a linear interpolation. Moreover, by utilizing a global locking mechanism and a local locking mechanism to perform the linear interpolation to determine the actual position of the interpolated pixel, the position error of the pixel position is largely reduced. Since the difference between the calculated pixel value and the ideal pixel value is reduced, the imaging quality of the output image signal is enhanced.Type: GrantFiled: May 3, 2011Date of Patent: November 5, 2013Assignee: AU Optronics Corp.Inventors: Feng-Ming Hsu, Yu-Hsien Yang, Li-Ru Lyu
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Publication number: 20130249892Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value in a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: ApplicationFiled: May 17, 2013Publication date: September 26, 2013Applicant: AU OPTRONICS CORP.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Publication number: 20120038822Abstract: A scaling-up control method and a scaling-up control apparatus are used in a display device. The display device includes a scaler for converting an original image signal into an output image signal by performing a linear interpolation. Moreover, by utilizing a global locking mechanism and a local locking mechanism to perform the linear interpolation to determine the actual position of the interpolated pixel, the position error of the pixel position is largely reduced. Since the difference between the calculated pixel value and the ideal pixel value is reduced, the imaging quality of the output image signal is enhanced.Type: ApplicationFiled: May 3, 2011Publication date: February 16, 2012Applicant: AU OPTRONICS CORP.Inventors: Feng-Ming HSU, Yu-Hsien YANG, Li-Ru LYU
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Publication number: 20120013655Abstract: A method for modulating display data of a flat display, comprises receiving a display datum with a digital count between a maximum digital count and a minimum digital count; modulating the display datum to correspondingly generate a modulated display datum, wherein the modulated display datum has a digital count same as that of the corresponding display datum when the digital count of the corresponding display datum is the same as the maximum digital count, and the modulated display datum has the digital count less than that of the corresponding display datum when the digital count of the corresponding display datum is less than the maximum digital count, wherein at least one modulated display datum has the digital count less than that of the corresponding display datum; and outputting the modulated display datum.Type: ApplicationFiled: April 20, 2011Publication date: January 19, 2012Applicant: AU OPTRONICS CORP.Inventors: Fu-Chuan TSAI, Yu-Chun TSAI, Li-Ru LYU
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Patent number: 8013830Abstract: A liquid crystal display and a driving method thereof. The liquid crystal display includes a liquid crystal display panel, a backlight module, a dimming control unit and a backlight module driving circuit. The liquid crystal display panel has a first display area and a second display area. The backlight module includes a plurality of lighting devices respectively corresponding to pixels in the first display area and the second display area. The dimming control unit generates at least one dimming control signal having a dimming frequency which is a multiple of a frame rate of the liquid crystal display panel. The backlight module driving circuit periodically drives the lighting devices in sequence according to the dimming control signal.Type: GrantFiled: May 31, 2006Date of Patent: September 6, 2011Assignee: AU Optronics Corp.Inventors: Chih-Che Hsu, Li-Ru Lyu
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Publication number: 20110199347Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value in a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: ApplicationFiled: April 19, 2011Publication date: August 18, 2011Applicant: AU OPTRONICS CORP.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Patent number: 7903073Abstract: A display is provided. The display includes a first timing controller, a second timing controller and drivers. The first timing controller receives and transmits a first portion of pixel values, in which the first portion of the pixel values includes the pixel values of at least two non-adjacent pixels. The second timing controller receives and transmits a second portion of the pixel values, in which the second portion of the pixel values includes the pixel values of at least two non-adjacent pixels. Each of the drivers receives respectively a part of the first portion of the pixel values transmitted by the first timing controller and a part of the second portion of the pixel values transmitted by the second timing controller. A method of transmitting image data in the display is also disclosed.Type: GrantFiled: November 29, 2007Date of Patent: March 8, 2011Assignee: Au Optronics CorporationInventors: Chun-Fan Chung, Sheng-Kai Hsu, Yung-Tse Cheng, Szu-Che Yeh, Li-Ru Lyu, Chih-Sung Wang
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Patent number: 7742030Abstract: A pixel of the LCD is driven according to a precharge pixel value and a compensation pixel value both being generated from a pixel value during a precharge field and a compensation field respectively. A precharge driving voltage corresponding to the precharge pixel value, and a compensation driving voltage corresponding to the compensation pixel value is then determined and used to drive the pixel. The lightness of the pixel driven according to the precharge pixel value and the compensation pixel value is substantially the same as the lightness of the pixel if driven according to the pixel value. The precharge field comes before the compensation field when the precharge pixel value is larger than the compensation pixel value, and the compensation field comes before the precharge field when the compensation pixel value is larger than the precharge pixel value.Type: GrantFiled: September 22, 2006Date of Patent: June 22, 2010Assignee: AU Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Publication number: 20090189886Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value in a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: ApplicationFiled: March 31, 2009Publication date: July 30, 2009Applicant: AU OPTRONICS CORP.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Patent number: 7548249Abstract: A method of dynamic frame presentation improvement for liquid crystal display is disclosed. The method comprises the step of providing a gray level mapping table, which maps the signal gray levels from 0 to N into mapped gray levels from 1 to N?1 level. Thereafter, the mapped data is fed into over-voltage compensation circuit. The over-voltage compensation circuit then implements process of the gray level ascending or gray level descending while the previous frame turns into current frame with a varied gray level.Type: GrantFiled: August 11, 2004Date of Patent: June 16, 2009Assignee: Au Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu, Hung-Min Shih, Yung-Zhi Wu, Ya-Fang Chen
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Patent number: 7532186Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value During a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: GrantFiled: May 19, 2004Date of Patent: May 12, 2009Assignee: AU Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Publication number: 20090091527Abstract: A display is provided. The display includes a first timing controller, a second timing controller and drivers. The first timing controller receives and transmits a first portion of pixel values, in which the first portion of the pixel values includes the pixel values of at least two non-adjacent pixels. The second timing controller receives and transmits a second portion of the pixel values, in which the second portion of the pixel values includes the pixel values of at least two non-adjacent pixels. Each of the drivers receives respectively a part of the first portion of the pixel values transmitted by the first timing controller and a part of the second portion of the pixel values transmitted by the second timing controller. A method of transmitting image data in the display is also disclosed.Type: ApplicationFiled: November 29, 2007Publication date: April 9, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Fan Chung, Sheng-Kai Hsu, Yung-Tse Cheng, Szu-Che Yeh, Li-Ru Lyu, Chih-Sung Wang
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Publication number: 20080211753Abstract: A liquid crystal display (LCD) driving apparatus and the method thereof is disclosed. The method receives a pixel and drives a pixel of the LCD according to the pixel value During a frame period, wherein the frame period is divided into a precharge field and a compensation field. Firstly, a precharge pixel value is decided according to the pixel and a reference value. A compensation pixel value is decided according to the precharge pixel. Next, a precharge driving voltage is determined according to the precharge pixel value. Afterwards, a compensation driving voltage is determined according to the compensation pixel value. Finally, the pixel is driven according to the precharge driving voltage and the compensation driving voltage respectively during the precharge field and the compensation field.Type: ApplicationFiled: November 30, 2007Publication date: September 4, 2008Applicant: AU OPTRONICS CORP.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Publication number: 20070176883Abstract: A liquid crystal display and a driving method thereof. The liquid crystal display includes a liquid crystal display panel, a backlight module, a dimming control unit and a backlight module driving circuit. The liquid crystal display panel has a first display area and a second display area. The backlight module includes a plurality of lighting devices respectively corresponding to pixels in the first display area and the second display area. The dimming control unit generates at least one dimming control signal having a dimming frequency which is a multiple of a frame rate of the liquid crystal display panel. The backlight module driving circuit periodically drives the lighting devices in sequence according to the dimming control signal.Type: ApplicationFiled: May 31, 2006Publication date: August 2, 2007Inventors: Chih-Che Hsu, Li-Ru Lyu
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Publication number: 20070013630Abstract: A liquid crystal display (LCD) driving method is provided. A pixel of the LCD is driven according to a precharge pixel value and a compensation pixel value both being generated from a pixel value during a precharge field and a compensation field respectively. A precharge driving voltage corresponding to the precharge pixel value, and a compensation driving voltage corresponding to the compensation pixel value is then determined and used to drive the pixel. The lightness of the pixel driven according to the precharge pixel value and the compensation pixel value is substantially the same as the lightness of the pixel if driven according to the pixel value. The precharge field comes before the compensation field when the precharge pixel value is larger than the compensation pixel value, and the compensation field comes before the precharge field when the compensation pixel value is larger than the precharge pixel value.Type: ApplicationFiled: September 22, 2006Publication date: January 18, 2007Applicant: AU OPTRONICS CORP.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Patent number: 7019716Abstract: A driving method for PDPs with variable vertical frequency. The method increases the sum of the sustain periods to obtain high brightness, by adjusting vertical frequency of a PDP through an image loading such that each image frame time displayed on the PDP is adjusted. The inventive driving method also adjusts total sustain pulses in the PDP through the image loading. To comply with the driving method, a driving apparatus is further provided to achieve the high brightness.Type: GrantFiled: May 5, 2003Date of Patent: March 28, 2006Assignee: AU Optronics Corp.Inventors: Chung-Kuang Tsai, Li-Ru Lyu
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Publication number: 20060044295Abstract: A timing controller (TCON) for use in flat panel displays to dynamically tune the display parameters thereof. The TCON comprises a bus master coupled to a bus and a register for configuring the register with a default value, and a bus slave coupled to an external interface for input of a custom value to configure the register, thereby rendering display parameters dynamically tunable.Type: ApplicationFiled: February 17, 2005Publication date: March 2, 2006Inventors: Hui-Lung Yu, Chia-Pu Ho, Li-Ru Lyu
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Publication number: 20050253876Abstract: A method of dynamic frame presentation improvement for liquid crystal display is disclosed. The method comprises the step of providing a gray level mapping table, which maps the signal gray levels from 0 to N into mapped gray levels from 1 to N?1 level. Thereafter, the mapped data is fed into over-voltage compensation circuit. The over-voltage compensation circuit then implements process of the gray level ascending or gray level descending while the previous frame turns into current frame with a varied gray level.Type: ApplicationFiled: August 11, 2004Publication date: November 17, 2005Inventors: Chung-Kuang Tsai, Li-Ru Lyu, Hung-Min Shih, Yung-Zhi Wu, Ya-Fang Chen