Patents by Inventor Young-Chol Yang
Young-Chol 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: 9921447Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: GrantFiled: January 7, 2015Date of Patent: March 20, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung-Kyu Hong, Young-Chol Yang, Jong-Lae Kim, Hee-Seob Kim
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Patent number: 9134581Abstract: A liquid crystal display includes first and second gate lines arranged in parallel to each other and sequentially transmitting a gate voltage, a data line crossing the first and second gate lines and transmitting a data voltage, a pixel electrode constituted by first and second sub-pixel electrodes and electrically disconnected from each other, a first switching element connected to the first gate line, the data line, and the first sub-pixel electrode, a second switching element connected to the first gate line, the data line, and the second sub-pixel electrode, a third switching element connected to the first sub-pixel electrode across a charge-sharing capacitor, and a fourth switching element connected to the second gate line and the second sub-pixel electrode and connected to the first sub-pixel electrode across the charge-sharing capacitor.Type: GrantFiled: July 12, 2011Date of Patent: September 15, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young-Chol Yang, JianGang Lu, Seung-Hoon Lee
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Patent number: 9110344Abstract: A pixel electrode and a direction control electrode capacitively coupled to the pixel electrode are provided in a pixel. A pixel thin film transistor is connected to a gate line, a data line, and the pixel electrode. A direction control electrode thin film transistor is connected to a previous gate line, a previous data lines or a next data line, and the direction control electrode. The gate lines are supplied with scanning signals, and each scanning signal includes first and second pulses in a frame. The first pulse of a scanning signal is synchronized with the second pulse of a previous scanning signal.Type: GrantFiled: April 26, 2011Date of Patent: August 18, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee-Seop Kim, Young-Chol Yang, Kyoung-Ju Shin, Sung-Kyu Hong, Jong-Lae Kim, Baek-Woon Lee
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Publication number: 20150138482Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: ApplicationFiled: January 7, 2015Publication date: May 21, 2015Inventors: Sung-Kyu HONG, Young-Chol YANG, Jong-Lae KIM, Hee-Seob KIM
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Patent number: 8953113Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: GrantFiled: September 23, 2011Date of Patent: February 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seob Kim, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Patent number: 8830414Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: GrantFiled: September 23, 2011Date of Patent: September 9, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seob Kim, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Patent number: 8803777Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.Type: GrantFiled: March 29, 2013Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Wook Do, Seung-Beom Park, Hoon Kim, Hye-Ran You, Jian Gang Lu, Hee-Seop Kim, Young-Chol Yang, Seoung-Hoon Lee
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Publication number: 20120274623Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.Type: ApplicationFiled: July 3, 2012Publication date: November 1, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-Wook DO, Seung-Beom PARK, Hoon KIM, Hye-Ran YOU, Jian Gang LU, Hee-Seop KIM, Young-Chol YANG, Seung-Hoon LEE
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Patent number: 8294649Abstract: A driving device for a display device and a method of compensating an image signal of the display device in which the driving device for a display device having a plurality of pixels includes: a first compensating unit that converts an image signal corresponding to the pixel into a first compensated signal according to a difference between the image signal, and an image signal in a previous frame; a second compensating unit that converts the first compensated signal corresponding to the pixel into first and output image signals; an edge detecting unit that outputs a signal according to whether the pixel exists in an edge region in an image based on a difference between image signals corresponding to peripheral pixels; and a first calculating unit that generates converted signals of the first and second output signals based on the output signal of the edge detecting unit.Type: GrantFiled: July 16, 2007Date of Patent: October 23, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Chol Yang, Baek-Woon Lee
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Patent number: 8237646Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.Type: GrantFiled: June 3, 2008Date of Patent: August 7, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Wook Do, Seung-Beom Park, Hoon Kim, Hye-Ran You, Jian Gang Lu, Hee-Seop Kim, Young-Chol Yang, Seung-Hoon Lee
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Patent number: 8207981Abstract: A method of converting image signals for a display device including six-color subpixels is provided, which includes: classifying three-color input image signals into maximum, middle, and minimum; decomposing the classified signals into six-color components; determining a maximum among the six-color components; calculating a scaling factor; and extracting six-color output signals.Type: GrantFiled: January 20, 2009Date of Patent: June 26, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Chol Yang, Baek-Woon Lee
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Publication number: 20120154702Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.Type: ApplicationFiled: February 28, 2012Publication date: June 21, 2012Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
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Publication number: 20120074416Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: ApplicationFiled: September 23, 2011Publication date: March 29, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-Seob KIM, Jong-Lae KIM, Young-Chol YANG, Sung-Kyu HONG
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Patent number: 8125599Abstract: A thin film transistor array panel is provided, which includes: a substrate; a plurality of first signal lines formed on the substrate; a plurality of second signal lines intersecting the first signal lines to define pixel areas; first and second pixel electrodes disposed substantially in a pixel area and having different areas; a plurality of thin film transistors connected to the first and the second signal lines and at least one of the first and the second pixel electrodes; a coupling electrode overlapping the second pixel electrode; and a tilt direction defining member for determining tilt directions of liquid crystal molecules formed on the substrate.Type: GrantFiled: November 19, 2010Date of Patent: February 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seob Kim, Joon-Hak Oh, Doo-Hwan You, Young-Chol Yang
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Patent number: 8072473Abstract: A gray scale voltage generator and a method of generating a gray scale voltage in a transmissive and reflective type liquid crystal display device are disclosed. A transmissive mode gray scale data are transformed into real reflective mode gray scale data. An integer part is extracted from the real reflective mode gray scale data as a first reflective mode gray scale data. The first reflective mode gray scale data and temporary reflective mode gray scale data are mixed in a predetermined ratio by N-frame period. The temporary reflective mode gray scale data has a sum of one and the first reflective mode gray scale data. Pseudo gray scale data are inserted into the second reflective mode gray scale data. Therefore, superior display quality is provided in both transmissive and reflective mode.Type: GrantFiled: September 19, 2006Date of Patent: December 6, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Il Kim, Cheol-Woo Park, Tae-Hwan Kim, Dong-Sik Sakong, Young-Chol Yang, Won-Sang Park, Jae-Chang Kim
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Patent number: 8058650Abstract: A thin film transistor array panel is provided, which includes: an insulating substrate; a plurality of first signal lines formed on the insulating substrate; a plurality of second signal lines formed on the insulating substrate and intersecting the first wire in an insulating manner; a pixel electrode formed in a pixel area defined by the intersections of the first signal lines and the second signal lines and including a plurality of subareas partitioned by cutouts and a plurality of bridges connecting the subareas; and a direction control electrode formed in the pixel area and including a portion overlapping at least one of the cutouts, wherein two long edges of each subarea are parallel to each other and the at least one of cutouts overlapping the portion of the direction control electrode defines one of two longest edges of the subarea.Type: GrantFiled: April 22, 2009Date of Patent: November 15, 2011Assignee: Samsung Electronics, Co., Ltd.Inventors: Sung-Kyu Hong, Young-Chol Yang, Jong-Lae Kim, Kyong-Ju Shin, Hee-Seob Kim
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Patent number: 8054398Abstract: The present invention provides a liquid crystal display having excellent visibility. A thin film transistor array panel is provided, which includes: gate lines formed on an insulating substrate; data lines insulated from the gate lines and intersecting the gate lines; first pixel electrodes disposed on pixel areas defined by intersections of the gate lines and the data lines; first thin film transistors, each having three terminals connected to one of the gate lines, one of the data lines, and one of the first pixel electrodes; second pixel electrodes disposed on the pixel areas and capacitively coupled to the first pixel electrodes; and second thin film transistors, each having three terminals connected to a previous gate line, a storage electrode line or one of the data lines, and one of the second pixel electrodes.Type: GrantFiled: March 26, 2004Date of Patent: November 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seob Kim, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Publication number: 20110267554Abstract: A liquid crystal display includes first and second gate lines arranged in parallel to each other and sequentially transmitting a gate voltage, a data line crossing the first and second gate lines and transmitting a data voltage, a pixel electrode constituted by first and second sub-pixel electrodes and electrically disconnected from each other, a first switching element connected to the first gate line, the data line, and the first sub-pixel electrode, a second switching element connected to the first gate line, the data line, and the second sub-pixel electrode, a third switching element connected to the first sub-pixel electrode across a charge-sharing capacitor, and a fourth switching element connected to the second gate line and the second sub-pixel electrode and connected to the first sub-pixel electrode across the charge-sharing capacitor.Type: ApplicationFiled: July 12, 2011Publication date: November 3, 2011Inventors: Young-Chol Yang, JianGang Lu, Seung-Hoon Lee
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Patent number: RE43785Abstract: A thin film transistor array panel is provided, which includes: an insulating substrate; a first signal wire formed on the insulating substrate; a second signal wire formed on the insulating substrate and intersecting the first signal wire in an insulating manner; first and second pixel electrodes formed in a pixel area defined by the intersections of the first and the second signal wires and including a plurality of subareas partitioned by cutouts; a direction control electrode formed in the pixel area and including a portion overlapping at least one of the cutouts; and a first thin film transistor connected to the direction control electrode, the first signal wire, and the second signal wire.Type: GrantFiled: September 23, 2010Date of Patent: November 6, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Seob Kim, Kyong-Ju Shin, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong
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Patent number: RE44166Abstract: A thin film transistor array panel is provided, which includes: an insulating substrate; a first signal wire formed on the insulating substrate; a second signal wire formed on the insulating substrate and intersecting the first signal wire in an insulating manner; first and second pixel electrodes formed in a pixel area defined by the intersections of the first and the second signal wires and including a plurality of subareas partitioned by cutouts; a direction control electrode formed in the pixel area and including a portion overlapping at least one of the cutouts; and a first thin film transistor connected to the direction control electrode, the first signal wire, and the second signal wire.Type: GrantFiled: September 23, 2010Date of Patent: April 23, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hee-Seob Kim, Kyong-Ju Shin, Jong-Lae Kim, Young-Chol Yang, Sung-Kyu Hong