Patents by Inventor Hye-Seok Na
Hye-Seok Na 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: 8355090Abstract: A liquid crystal display (LCD), according to an exemplary embodiment of the present invention, includes a first pixel formed between the first and second gate lines, the first and the second data lines, a first subpixel configured to have applied thereto a first data voltage and a second subpixel configured to have applied thereto a second data voltage lower than the first data voltage, a second pixel formed between the second and third gate lines, the first and second data lines, and having a third subpixel configured to have applied thereto a third data voltage and a fourth subpixel configured to have applied thereto a fourth data voltage lower than the third data voltage.Type: GrantFiled: July 22, 2009Date of Patent: January 15, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ji-Hyun Kwon, Hye-Seok Na, Won-Hee Lee, Ho-Kyoon Kwon, Byoung-Sun Na, Dong-Yoon Lee, Ju-Hee Lee, Gwang-Bum Ko
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Patent number: 8294866Abstract: Disclosed are a liquid crystal display device and a method of manufacturing the liquid crystal display device. The liquid crystal display device includes a first insulating substrate, a gate line and a data line formed on the first insulating substrate and crossing each other, a first pixel electrode formed on the first insulating substrate and including a first part and a second part which are physically separated, a second pixel electrode formed on the first insulating substrate and forming an electric field with the first pixel electrode, a connection bridge including at least one conductive layer and electrically connecting the first part with the second part through a contact hole, and at least one insulating layer positioned between the first pixel electrode and the connection bridge, wherein the contact hole is formed in the at least one insulating layer.Type: GrantFiled: September 17, 2010Date of Patent: October 23, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Hyeon Ki, Mee-Hye Jung, Se-Hyoung Cho, Dong-Gyu Kim, Seung-Soo Baek, Hye-Seok Na
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Patent number: 8259249Abstract: A display substrate includes a first pixel electrode and a second pixel electrode. The first pixel electrode includes a plurality of first electrode bars. A data line provides a data voltage to the first pixel electrode. The second pixel electrode includes a plurality of second electrode bars alternately disposed with the first electrode bars. A first power line is formed adjacent to a gate line to provide a first voltage to the second pixel electrode. A second power line crosses the first power line and is electrically connected to the first power line. A first switching element is electrically connected to the data line, the gate line and the first pixel electrode. A second switching element is electrically connected to the first power line, the gate line and the second pixel electrode.Type: GrantFiled: October 5, 2010Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Seung-Soo Baek, Mee-Hye Jung, Dong-Hyeon Ki, Sei-Hyoung Jo, Hye-Seok Na
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Patent number: 8253912Abstract: A liquid crystal display (“LCD”) includes a decoupling line extending in a first direction, first and second data lines extending in a second direction perpendicular to the first direction, a pixel electrode including a first sub-pixel electrode and a second sub-pixel electrode. The pixel electrode further includes a lower domain-dividing part formed thereon. The LCD further includes a common electrode disposed opposite the pixel electrode and including an upper domain-dividing part formed thereon, and a first decoupling electrode including a slanting part and a straight part. The slanting part extends from the decoupling line and overlaps a portion of one of the lower domain-dividing part and the upper domain-dividing part, and the straight part extends from the slanting part and is formed parallel to the first data line in an area of the pixel where the first sub-pixel electrode and the first data line are adjacent to each other.Type: GrantFiled: October 1, 2008Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Seok Na, Seung-Soo Baek, Dong-Gyu Kim
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Patent number: 8253874Abstract: A liquid crystal display including a pixel electrode having first and second sub-pixel electrodes separated from each other; a gate line electrically connected to the first and second sub-pixel electrodes through thin film transistors, a data line electrically connected to the first and second sub-pixel electrodes through the thin film transistors, a first storage electrode line having a first storage electrode overlapped with the first sub-pixel electrode, wherein a first storage voltage is applied to the first storage electrode line as a cyclic signal; and a second storage electrode line having a second storage electrode overlapped with the second sub-pixel electrode, wherein a second storage electrode voltage opposite in phase to the first storage electrode voltage is applied to the second storage electrode line as a cyclic signal, and wherein the first and second sub-pixel electrodes are electrically connected to the same gate line and to the same data line through the thin film transistors, and the pixelType: GrantFiled: February 12, 2009Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu Kim, Hye-Seok Na
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Publication number: 20120194774Abstract: A liquid crystal display includes: first and second substrate opposite to each other; data lines on the first substrate which transmits a first voltage; a voltage transmitting line on the first substrate which transmits a second voltage; and first and second pixel electrodes on the first substrate and spaced apart from each other, where one of the first and second pixel electrodes is applied with the first voltage through the data lines, the other of the first and second pixel electrodes is applied with the second voltage through the voltage transmitting line, each of the first and second pixel electrodes includes a stem and branches electrodes extending from the stem, the branches of the first pixel electrode and the branches of the second pixel electrode are alternately disposed, and the stems of the first and second pixel electrodes overlap at least a portion of the voltage transmitting line.Type: ApplicationFiled: September 23, 2011Publication date: August 2, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee Hye JUNG, Kook Hyun CHOI, Hye Seok NA, Dong Gyu KIM, Young Hoon YOO, Woo Sung SOHN, Sung Hoon KIM
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Publication number: 20120113375Abstract: A first slit pattern is formed in a display substrate and a display panel of vertical alignment mode having the display substrate. The first slit pattern includes slits, a pair of projections and a pair of notches. A divergence point where the slits meet each other and an incision portion of the slits have the same function as the pair of projections in the generation of a singular point of liquid crystal. A contact hole exposing a part of an output electrode of a switching element is formed at a protective layer of an array substrate. A step recess is formed at a protective layer corresponding to a storage electrode, a divergence point of the slits is arranged to correspond to the storage electrode. The singular point of the liquid crystal is induced to occur at a regular position, and thus afterimages and spots can be prevented.Type: ApplicationFiled: January 20, 2012Publication date: May 10, 2012Inventors: Hye-Seok NA, Byoung-Sun NA, Won-Hee LEE, Ho-Kyoon KWON, Ji-Hyun KWON
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Patent number: 8159429Abstract: A liquid crystal display (“LCD”) capable of improving display quality includes a first insulating substrate, gate wiring lines formed on the first insulating substrate and extending in a first direction, data wiring lines insulated from and crossing the gate wiring lines and extending in a second direction, and pixel electrodes, each of which includes first and second sub-pixel electrodes that are applied with different data voltages from the data wiring lines, in which at least a part of the second sub-pixel electrode overlaps the data wiring lines.Type: GrantFiled: July 17, 2007Date of Patent: April 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-gyu Kim, Seong-young Lee, Sung-jae Moon, Hye-seok Na
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Publication number: 20120038843Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate and an opposing second substrate; a first pixel electrode and a second pixel electrode disposed in a pixel area, on the first substrate, and including a plurality of branch electrodes; and a liquid crystal layer interposed between the first and second electrodes. Branches electrode of the first pixel electrode and the second pixel electrode are interlaced. The first pixel electrode has an extension disposed adjacent to the center of the pixel area, and a minimum distance between the extension and the adjacent branch electrode is different from an average minimum between the adjacent branch electrodes.Type: ApplicationFiled: June 8, 2011Publication date: February 16, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee-Hye JUNG, Doo-Hwan YOU, Young-Hoon YOO, Woo-Sung SOHN, Sung-Hoon KIM, Jae-Yong SHIN, Se-Hyoung CHO, Hye-Seok NA, Hong-Jo PARK, Hyang-Yul KIM
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Patent number: 8102495Abstract: A first slit pattern is formed in a display substrate and a display panel of vertical alignment mode having the display substrate. The first slit pattern includes slits, a pair of projections and a pair of notches. A divergence point where the slits meet each other and an incision portion of the slits have the same function as the pair of projections in the generation of a singular point of liquid crystal. A contact hole exposing a part of an output electrode of a switching element is formed at a protective layer of an array substrate. A step recess is formed at a protective layer corresponding to a storage electrode, a divergence point of the slits is arranged to correspond to the storage electrode. The singular point of the liquid crystal is induced to occur at a regular position, and thus afterimages and spots can be prevented.Type: GrantFiled: April 6, 2009Date of Patent: January 24, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Seok Na, Byoung-Sun Na, Won-Hee Lee, Ho-Kyoon Kwon, Ji-Hyun Kwon
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Publication number: 20120013817Abstract: A liquid crystal display device includes a substrate, a gate line, first and second data lines, a first power line, first, second, third and fourth switching elements, and first, second, third and fourth pixel electrodes. The first switching element is connected to the gate line and the first data line. The second switching element is connected to the gate line and the first power line. The third switching element is connected to the gate line and the second data line. The fourth switching element is connected to the gate line and the first power line. The first to fourth pixel electrodes are connected to the first to fourth switching elements, respectively. Thus, a light leakage may be prevented and an aperture ratio of a display substrate may be enhanced.Type: ApplicationFiled: June 8, 2011Publication date: January 19, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Gyu KIM, Hye-Seok NA, Mee-Hye JUNG, Dong-Hyeon KI, Se-Hyoung CHO
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Patent number: 8098358Abstract: The present invention relates to a liquid crystal display that includes: gate lines and data lines arranged on a first substrate; pixel electrodes connected to the gate lines and the data lines, and including a first sub-pixel electrode and a second sub-pixel electrode separated from each other by a gap; a common electrode arranged on a second substrate, and facing the pixel electrodes; and a liquid crystal layer disposed between the pixel electrodes and the common electrode and including a plurality of liquid crystal molecules, wherein each of the first sub-pixel electrode and the second sub-pixel electrode includes a plurality of fine branch portions, the second sub-pixel electrodes include a connection portion surrounding the fine branch portions of the first sub-pixel electrodes, and a plurality of notches are formed in the connection portion of the second sub-pixel electrode.Type: GrantFiled: May 27, 2009Date of Patent: January 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hoon Kim, Seung-Soo Baek, Hye-Seok Na
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Publication number: 20110221988Abstract: A liquid crystal display includes first and second substrates, and a liquid crystal layer disposed therebetween. First and second gate lines are disposed on the first substrate. First and second data lines, and a power line are disposed on the first substrate. A first switching element is connected to the first gate line and the first data line, a second switching element is connected to the first gate line and the power line, a third switching element is connected to the second gate line and the second data line, a first pixel electrode is connected to the first switching element, a second pixel electrode is connected to the second switching element, a third pixel electrode is connected to the second switching element, and a fourth pixel electrode is connected to the third switching element, and a gate-on voltage can be simultaneously applied to the first and second gate lines.Type: ApplicationFiled: October 7, 2010Publication date: September 15, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Se-Hyoung Cho, Dong-Gyu Kim, Mee-Hye Jung, Dong-Hyeon Ki, Seung-Soo Baek, Hye-Seok Na
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Publication number: 20110096280Abstract: Disclosed are a liquid crystal display device and a method of manufacturing the liquid crystal display device. The liquid crystal display device includes a first insulating substrate, a gate line and a data line formed on the first insulating substrate and crossing each other, a first pixel electrode formed on the first insulating substrate and including a first part and a second part which are physically separated, a second pixel electrode formed on the first insulating substrate and forming an electric field with the first pixel electrode, a connection bridge including at least one conductive layer and electrically connecting the first part with the second part through a contact hole, and at least one insulating layer positioned between the first pixel electrode and the connection bridge, wherein the contact hole is formed in the at least one insulating layer.Type: ApplicationFiled: September 17, 2010Publication date: April 28, 2011Inventors: DONG-HYEON KI, Mee-Hye Jung, Se-Hyoung Cho, Dong-Gyu Kim, Seung-Soo Baek, Hye-Seok Na
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Publication number: 20110096278Abstract: A display substrate includes a first shield pattern, a second shield pattern and a transparent electrode. The first shield pattern is disposed adjacent to a first data line. The second shield pattern is disposed adjacent to a second data line to face the first data line. The transparent electrode includes a first pixel electrode coupled to the first data line and the first shield pattern, and a second pixel electrode coupled to a first power line and the second shield pattern. The first pixel electrode and the second pixel electrode are disposed in an alternating arrangement. The transparent electrode is partially overlapped with at least one of the first data line or the second data line. In this approach, when a black image is displayed, light leakage can be prevented.Type: ApplicationFiled: May 4, 2010Publication date: April 28, 2011Applicant: Samsung Electronics Co., Ltd.Inventors: Dong-Gyu KIM, Hye-Seok NA
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Publication number: 20110085100Abstract: A display substrate includes a first pixel electrode and a second pixel electrode. The first pixel electrode includes a plurality of first electrode bars. A data line provides a data voltage to the first pixel electrode. The second pixel electrode includes a plurality of second electrode bars alternately disposed with the first electrode bars. A first power line is formed adjacent to a gate line to provide a first voltage to the second pixel electrode. A second power line crosses the first power line and is electrically connected to the first power line. A first switching element is electrically connected to the data line, the gate line and the first pixel electrode. A second switching element is electrically connected to the first power line, the gate line and the second pixel electrode.Type: ApplicationFiled: October 5, 2010Publication date: April 14, 2011Inventors: Dong-Gyu KIM, Seung-Soo Baek, Mee-Hye Jung, Dong-Hyeon Ki, Sei-Hyoung Jo, Hye-Seok Na
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Patent number: 7916225Abstract: Provided is a liquid crystal display (LCD) with enhanced display qualities. The LCD includes a first insulating substrate; a gate line disposed on the first insulating substrate and extending in a first direction; first and second data lines insulated from and crossing the gate line, separated from each other, and extending in a second direction; first and second thin film transistors (TFTs) connected to the gate line and the first and second data lines, respectively; first and second subpixel electrodes connected to the first and second TFTs, respectively; and first and second drain electrode connection portions connecting the first and second TFTs to the first and second subpixel electrodes, respectively. The first and second drain electrode connection portions are electrically insulated from each other and together form a substantially rectangular band.Type: GrantFiled: August 6, 2007Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Seok Na, Sung-Jae Moon, Back-Won Lee, Seoung-Young Lee
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Publication number: 20100328279Abstract: A liquid crystal display device includes; a plurality of data lines disposed on a substrate, a plurality of gate lines disposed substantially perpendicular to the data lines, wherein the data lines and the gate lines together surround a plurality of pixel regions, a plurality of power supplying lines disposed substantially parallel to the data lines, a plurality of pixel electrode pairs, wherein each of the pixel electrode pairs includes a first and a second pixel electrode respectively disposed in each pixel region, and a pixel driving circuit including at least one transistor and a plurality of storage capacitors in each pixel region, wherein the pixel electrode pairs have portions where the pixel electrode pairs and at least one of the plurality of data lines and the plurality of power supplying lines are vertically aligned with each other, and the storage capacitors are disposed at the vertically aligned portions.Type: ApplicationFiled: May 7, 2010Publication date: December 30, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee-hye JUNG, Dong-gyu KIM, Seung-soo BAEK, Kwang-chul JUNG, Sei-hyoung JO, Hye-seok NA
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Patent number: 7821003Abstract: Provided are a thin-film transistor (TFT) substrate and a display device having the same. In the TFT substrate and the display device having the same, first and second drain electrodes of first and second TFTs connected to first and second pixel electrodes, respectively, are vertically bent a plurality of times. The distance between each of the first and second source electrodes and the first or second drain electrode is maintained at a minimum interline gap to increase the distance between a data line and each of the first and second drain electrodes and minimize the length of a region of each of the first and second drain electrodes adjacent to the data line. Consequently, a coupling capacitance between the data line and each of the first and second drain electrodes can be reduced, and each unit pixel region can have a uniform parasite capacitance within a predetermined range. In addition, the luminance deviation of a display device, which performs inversion driving, can be reduced.Type: GrantFiled: February 26, 2009Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hye-Seok Na, Won-Hee Lee, Ho-Kyoon Kwon, Byoung-Sun Na, Soon-Il Ahn, Ji-Hyun Kwon
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Patent number: 7760282Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a pixel electrode having first and second sub-pixel electrodes; a first thin film transistor connected to the first sub-pixel electrode; a second thin film transistor connected to the second sub-pixel electrode; a first data line connected to the first thin film transistor; a second data line connected to the second thin film transistor; a gate line connected to the first and second thin film transistors and crossing the first and second data lines; and a blocking member overlapping at least one portion of the first sub-pixel electrode.Type: GrantFiled: May 30, 2007Date of Patent: July 20, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seong-Young Lee, Dong-Gyu Kim, Hye-Seok Na