Patents by Inventor Chung-Kuang Tsai
Chung-Kuang Tsai 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).
-
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
-
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
-
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
-
Patent number: 8232945Abstract: A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.Type: GrantFiled: February 10, 2012Date of Patent: July 31, 2012Assignee: AU Optronics Corp.Inventors: Hung-Min Shih, Chung-Kuang Tsai
-
Publication number: 20120139971Abstract: A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.Type: ApplicationFiled: February 10, 2012Publication date: June 7, 2012Applicant: AU OPTRONICS CORP.Inventors: Hung-Min Shih, Chung-Kuang Tsai
-
Patent number: 8139010Abstract: A gamma voltage generator can control brightness of a first color pixel unit and a second color pixel unit. A first potential divider is coupled between a first node and a second node for generating a first main gamma voltage. At least one second potential divider is coupled between the second node and a third node for generating a first sub-gamma voltage and a second sub-gamma voltage. The brightness of the first color pixel unit is controlled by the first main gamma voltage and the first sub-gamma voltage. The brightness of the second color pixel unit is controlled by the first main gamma voltage and the second sub-gamma voltage.Type: GrantFiled: November 18, 2005Date of Patent: March 20, 2012Assignee: AU Optronics Corp.Inventors: Hung-Min Shih, Chung-Kuang Tsai
-
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
-
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
-
Publication number: 20090244436Abstract: A backlight module of a flat panel display for lighting the flat panel display is described. The backlight module includes a rear bezel, a plurality of lamps, an optical film and a middle bezel. The rear bezel is composed of a bezel main body and sidewalls. The bezel main body includes a plurality of ribs to enhance the strength thereof and a plurality of studs to fix with a wall mounting bracket or a foot stand. The middle bezel fixes the optical film on the rear bezel. The backlight module may further include a plurality of supports integrated the rear bezel. A reflective film may also be integrated on the rear bezel to further reduce the quantity of separable components of the flat panel display.Type: ApplicationFiled: June 8, 2009Publication date: October 1, 2009Inventors: Nan-Ching Lee, Chung-Kuang Tsai, Kuang-Ting Cheng
-
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
-
Patent number: 7561224Abstract: A backlight module of a flat panel display for lighting the flat panel display is described. The backlight module includes a rear bezel, a plurality of lamps, an optical film and a middle bezel. The rear bezel is composed of a bezel main body and sidewalls. The bezel main body includes a plurality of ribs to enhance the strength thereof and a plurality of studs to fix with a wall mounting bracket or a foot stand. The middle bezel fixes the optical film on the rear bezel. The backlight module may further include a plurality of supports integrated the rear bezel. A reflective film may also be integrated on the rear bezel to further reduce the quantity of separable components of the flat panel display.Type: GrantFiled: June 28, 2006Date of Patent: July 14, 2009Assignee: AU Optronics CorporationInventors: Nan-Ching Lee, Chung-Kuang Tsai, Kuang-Ting Cheng
-
Publication number: 20090154179Abstract: A back bezel for use in a back light module is disclosed. The back bezel comprises a body and a reinforced structure. The body includes a plastic portion and a plurality of openings arranged in the plastic portion. The body further includes a first side and a second side opposite the first side. The reinforced structure of the back bezel is formed on the plastic portion to increase the structural strength of the body.Type: ApplicationFiled: June 18, 2008Publication date: June 18, 2009Applicant: AU Optronics Corp.Inventors: Nan-Ching Lee, Chung-Kuang Tsai
-
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
-
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
-
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
-
Publication number: 20070229552Abstract: A color compensation method for a display is disclosed. The display includes a display module for receiving a plurality of original pixel data. The method includes calculating power-on time duration of the display module; and adjusting gray levels of the original pixel data according to the power-on time duration.Type: ApplicationFiled: May 30, 2007Publication date: October 4, 2007Applicant: AU OPTRONICS CORP.Inventors: Hung-Min Shih, Chung-Kuang Tsai, Kun-Hung Hsieh, Chih-Wei Chen, Chung-Lung Li
-
Patent number: 7262748Abstract: A driving method for a plasma display panel (PDP). The odd pixels units are selected by the odd fields, and are discharged. The even pixels units are selected by the even fields, and are discharged. The pixel units are disposed in a triangular arrangement, so that the odd pixel units and adjacent even pixel units, being different in color, are arranged alternately. Thereby, the present invention can eliminate flicker. In addition, the different pixel units are controlled by different common electrodes and the present invention thereby reduces cross-talk.Type: GrantFiled: February 18, 2004Date of Patent: August 28, 2007Assignee: Au Optronics Corp.Inventors: Ji-Bin Du, Chung-Kuang Tsai
-
Publication number: 20070164976Abstract: A backlight module of a display panel includes a first light source, a second light source, a first inverter, and a second inverter. The first light source is disposed on a first side of the display panel and includes a first light-emitting device and a second light-emitting device. The second light source is disposed on a second side of the display panel and includes a third light-emitting device and a fourth light-emitting device. The first inverter is coupled to the first and third light-emitting devices, and the second inverter is coupled to the second and fourth light-emitting devices.Type: ApplicationFiled: March 7, 2006Publication date: July 19, 2007Inventors: Chung-Huwa Kuo, Chung-Kuang Tsai, Jian-Shen Li
-
Publication number: 20070147022Abstract: A backlight module of a flat panel display for lighting the flat panel display is described. The backlight module includes a rear bezel, a plurality of lamps, an optical film and a middle bezel. The rear bezel is composed of a bezel main body and sidewalls. The bezel main body includes a plurality of ribs to enhance the strength thereof and a plurality of studs to fix with a wall mounting bracket or a foot stand. The middle bezel fixes the optical film on the rear bezel. The backlight module may further include a plurality of supports integrated the rear bezel. A reflective film may also be integrated on the rear bezel to further reduce the quantity of separable components of the flat panel display.Type: ApplicationFiled: June 28, 2006Publication date: June 28, 2007Inventors: Nan-Ching Lee, Chung-Kuang Tsai, Kuang-Ting Cheng
-
Publication number: 20070120788Abstract: A display device comprising a glass substrate, a display array, a backlight unit, at least one first driver, a second driver, a scalar, and a timing controller. The display array is disposed on the glass substrate and comprises a plurality of pixel units. The backlight unit provides light to the display array. The at least one first driver controls the pixel units. The second driver drives the backlight unit. The scalar processes an image input signal and outputs a digital image signal. The timing controller receives the digital image signal and provides at least one control signal to the at least one first driver. The memory device stores optics and image references of the display array. The memory device is coupled to the circuit board of the at least one first driver, the circuit board of the second driver, or the glass substrate.Type: ApplicationFiled: March 8, 2006Publication date: May 31, 2007Inventors: Chung-Kuang Tsai, Wen-Kai Shih, Wu-Feng Liou