Patents by Inventor Se-Hyang Kim
Se-Hyang Kim 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: 10839763Abstract: The display device includes: a display panel including a plurality of gate lines extending in a first direction and arranged in a second direction, a plurality of data lines extending in the second direction and arranged in the first direction, and a plurality of dots arranged in the first and second directions; a gate driver configured to sequentially supply a gate signal to the plurality of gate lines; and a data driver configured to supply a plurality of data signals to the plurality of data lines, respectively. The gate driver includes sub-gate drivers. The sub-gate drivers are disposed in the first direction to supply the gate signal to at least two positions of each gate line. Each of the sub-gate drivers includes a plurality of stages and each stage is disposed in at least one dot.Type: GrantFiled: July 25, 2017Date of Patent: November 17, 2020Assignee: Samsung Display Co., Ltd.Inventors: Kyoungju Shin, Ji-sun Kim, Se-hyang Kim, Jonghee Kim, Junhyun Park, Youngwan Seo, Jaekeun Lim, Chongchul Chai
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Patent number: 10210812Abstract: There is provided a display panel including a plurality of white subpixels configured to display a white image, a gate line connected with the white subpixels and extended in a row direction, and an in-pixel gate driver including in-pixel elements exclusively in the white subpixels and connected with the gate line to supply a gate signal to the gate line.Type: GrantFiled: April 14, 2016Date of Patent: February 19, 2019Assignee: Samsung Display Co., Ltd.Inventors: Se-hyang Kim, Heejune Kwak, Kwang-chul Jung, Sang-uk Lim, Junki Jeong
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Publication number: 20180068629Abstract: The display device includes: a display panel including a plurality of gate lines extending in a first direction and arranged in a second direction, a plurality of data lines extending in the second direction and arranged in the first direction, and a plurality of dots arranged in the first and second directions; a gate driver configured to sequentially supply a gate signal to the plurality of gate lines; and a data driver configured to supply a plurality of data signals to the plurality of data lines, respectively. The gate driver includes sub-gate drivers. The sub-gate drivers are disposed in the first direction to supply the gate signal to at least two positions of each gate line. Each of the sub-gate drivers includes a plurality of stages and each stage is disposed in at least one dot.Type: ApplicationFiled: July 25, 2017Publication date: March 8, 2018Inventors: Kyoungju SHIN, Ji-sun KIM, Se-hyang KIM, Jonghee KIM, Junhyun PARK, Youngwan SEO, Jaekeun LIM, Chongchul CHAI
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Patent number: 9704449Abstract: The gate driving circuit includes an (m?1)-th stage externally receiving a first dummy signal for a first time period to control a turn-off, an m-th stage externally receiving a second dummy signal for the first time period to control the turn-off, an (m?2)-th stage receiving an m-th carry signal for a second time period from the m-th stage and externally receiving the second dummy signal for the second time period to control the turn-off, and an (m?3)-th stage receiving an (m?1)-th carry signal for the second time period from the (m?1)-th stage and externally receiving the first dummy signal for the first time period to control the turn-off, wherein the first time period is longer than the second time period.Type: GrantFiled: August 26, 2015Date of Patent: July 11, 2017Assignee: Samsung Display Co., Ltd.Inventors: Se-Hyang Kim, Kyung-Hoon Kim, KyoungHo Lim, Kwang-chul Jung, Junki Jeong
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Publication number: 20160307488Abstract: There is provided a display panel including a plurality of white subpixels configured to display a white image, a gate line connected with the white subpixels and extended in a row direction, and an in-pixel gate driver including in-pixel elements exclusively in the white subpixels and connected with the gate line to supply a gate signal to the gate line.Type: ApplicationFiled: April 14, 2016Publication date: October 20, 2016Inventors: Se-hyang Kim, Heejune Kwak, Kwang-chul Jung, Sang-uk Lim, Junki Jeong
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Publication number: 20160210918Abstract: The gate driving circuit includes an (m?1)-th stage externally receiving a first dummy signal for a first time period to control a turn-off, an m-th stage externally receiving a second dummy signal for the first time period to control the turn-off, an (m?2)-th stage receiving an m-th carry signal for a second time period from the m-th stage and externally receiving the second dummy signal for the second time period to control the turn-off, and an (m?3)-th stage receiving an (m?1)-th carry signal for the second time period from the (m?1)-th stage and externally receiving the first dummy signal for the first time period to control the turn-off, wherein the first time period is longer than the second time period.Type: ApplicationFiled: August 26, 2015Publication date: July 21, 2016Inventors: Se-Hyang KIM, Kyung-Hoon Kim, KyoungHo Lim, Kwang-chul Jung, Junki Jeong
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Patent number: 9007291Abstract: An active level shift (ALS) driver circuit and a liquid crystal display apparatus including the ALS driver circuit are disclosed. The ALS driver circuit includes an input unit configured to apply a first polarity voltage to a first node and to apply a second polarity voltage to a second node, a level compensation unit configured to adjust the voltages of the first node and the second node, and an output unit configured to alternately output a first power voltage and a second power voltage according to the adjusted voltages of the first and second nodes.Type: GrantFiled: October 20, 2011Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Seung-Kyu Lee, Dong-Hoon Lee, Chul-Ho Kim, Kyung-Hoon Kim, Se-Hyang Kim
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Patent number: 8913046Abstract: An LCD and a driving method thereof include: data writing for applying a common voltage and a data voltage to a plurality of pixels; and sustaining for applying a shifted common voltage shifted by a predetermined level from the common voltage to the plurality of pixels for a sustain period during which the plurality of pixels emit light, corresponding to the data voltage. The shifted common voltage is shifted to an opposite polarity of a polarity of a gate-off voltage applied to the plurality of pixels to float the plurality of pixels. During a sustain period, a gate-source voltage of the switching transistor can be increased, and accordingly an influence due to the leakage current can be minimized, thereby preventing image deterioration. Further, since capacitance of the sustain capacitor can be reduced so that power consumption of the LCD can be reduced.Type: GrantFiled: March 18, 2011Date of Patent: December 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seung-Kyu Lee, Kyung-Hoon Kim, Yang-Hwa Choi, Se-Hyang Kim, Chul-Ho Kim
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Patent number: 8884862Abstract: A display device includes: a plurality of pixels; a data driver connected to the plurality of pixels by a plurality of data lines and applying data signals to the plurality of pixels; a scan driver connected to the plurality of pixels by a plurality of scan lines and applying scan signals to the plurality of pixels for the data signals to be applied to the plurality of pixels; a boost driver connected to the plurality of pixels by a plurality of boost lines and applying boost signals, boosting the pixel voltage charged to the plurality of pixels by the data signals, to the plurality of pixels; and a boost voltage maintaining unit applying a restoring voltage restoring the voltage in the plurality of boost lines by the scan signal to the plurality of boost lines. The voltage generated in the boost line by the coupling may be quickly restored and the crosstalk may be minimized, thereby improving the image quality.Type: GrantFiled: November 15, 2010Date of Patent: November 11, 2014Assignee: Samsung Display Co., Ltd.Inventors: Yang-Hwa Choi, Seung-Kyu Lee, Kyung-Hoon Kim, Chul-Ho Kim, Se-Hyang Kim
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Publication number: 20120098807Abstract: An active level shift (ALS) driver circuit and a liquid crystal display apparatus including the ALS driver circuit are disclosed. The ALS driver circuit includes an input unit configured to apply a first polarity voltage to a first node and to apply a second polarity voltage to a second node, a level compensation unit configured to adjust the voltages of the first node and the second node, and an output unit configured to alternately output a first power voltage and a second power voltage according to the adjusted voltages of the first and second nodes.Type: ApplicationFiled: October 20, 2011Publication date: April 26, 2012Applicant: Samsung Mobile Display Co., Ltd.Inventors: Seung-Kyu Lee, Dong-Hoon Lee, Chul-Ho Kim, Kyung-Hoon Kim, Se-Hyang Kim
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Publication number: 20120098816Abstract: An LCD and a driving method thereof include: data writing for applying a common voltage and a data voltage to a plurality of pixels; and sustaining for applying a shifted common voltage shifted by a predetermined level from the common voltage to the plurality of pixels for a sustain period during which the plurality of pixels emit light, corresponding to the data voltage. The shifted common voltage is shifted to an opposite polarity of a polarity of a gate-off voltage applied to the plurality of pixels to float the plurality of pixels. During a sustain period, a gate-source voltage of the switching transistor can be increased, and accordingly an influence due to the leakage current can be minimized, thereby preventing image deterioration. Further, since capacitance of the sustain capacitor can be reduced so that power consumption of the LCD can be reduced.Type: ApplicationFiled: March 18, 2011Publication date: April 26, 2012Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Seung-Kyu Lee, Kyung-Hoon Kim, Yang-Hwa Choi, Se-Hyang Kim, Chul-Ho Kim
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Publication number: 20110227894Abstract: A display device includes: a plurality of pixels; a data driver connected to the plurality of pixels by a plurality of data lines and applying data signals to the plurality of pixels; a scan driver connected to the plurality of pixels by a plurality of scan lines and applying scan signals to the plurality of pixels for the data signals to be applied to the plurality of pixels; a boost driver connected to the plurality of pixels by a plurality of boost lines and applying boost signals, boosting the pixel voltage charged to the plurality of pixels by the data signals, to the plurality of pixels; and a boost voltage maintaining unit applying a restoring voltage restoring the voltage in the plurality of boost lines by the scan signal to the plurality of boost lines. The voltage generated in the boost line by the coupling may be quickly restored and the crosstalk may be minimized, thereby improving the image quality.Type: ApplicationFiled: November 15, 2010Publication date: September 22, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Yang-Hwa Choi, Seung-Kyu Lee, Kyung-Hoon Kim, Chul-Ho Kim, Se-Hyang Kim