Patents by Inventor Jang-Kun Song
Jang-Kun Song 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: 9557612Abstract: A liquid crystal display includes a first insulating substrate. A pixel electrode is formed on a top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode is substantially rectangular in shape with first and second long sides, and first and second short sides. The pixel electrode is divided into an upper region defined by the first and second long sides and first short side, and a lower region defined by the first and second long sides and second short side. A common electrode is formed on a bottom surface of a second insulating substrate, and has a second opening pattern at each pixel area. The first and second opening patterns each have a plurality of openings, the openings of the first opening pattern and the second opening pattern being alternately arranged parallel to each other.Type: GrantFiled: August 14, 2014Date of Patent: January 31, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jang-Kun Song, Jae-Jin Ryu
-
Patent number: 9514698Abstract: A liquid crystal display includes: a liquid crystal capacitor; a first switching element which transmits a data voltage to the liquid crystal capacitor; a second switching element connected to the liquid crystal capacitor; and a transformation capacitor connected to the second switching element. A difference between a first time when the first switching element is turned on and a second time when the second switching element starts is turned on is greater than 1 horizontal period and less than 1 frame period.Type: GrantFiled: April 11, 2016Date of Patent: December 6, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jang-Kun Song
-
Patent number: 9491449Abstract: A stereoscopic image display device includes an image compensator, a signal controller, a data driver, and a display panel. The image compensator is configured to convert input image data to revised image data. The revised image data is obtained by compensating for temperature variations of the display panel. The signal controller is configured to output the revised image data. The data driver is configured to receive the revised image data. The display panel includes a plurality of pixels configured to display a left eye image and a right eye image in response to receiving a data voltage from the data driver. The image compensator includes a temperature compensation lookup table selector having a temperature compensation lookup table, and a standard lookup table selector having a standard lookup table and configured to select the revised image data according to correction values selected from the temperature compensation lookup table.Type: GrantFiled: July 16, 2014Date of Patent: November 8, 2016Assignees: SAMSUNG DISPLAY CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Hoon Kim, Jang-Kun Song, Hee Seop Kim, Ki Chul Shin
-
Patent number: 9477121Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.Type: GrantFiled: March 5, 2014Date of Patent: October 25, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jang-Kun Song
-
Publication number: 20160223871Abstract: A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Inventors: Jang-Kun SONG, Hea-Ri LEE, Kye-Hun LEE, Kyeong-Hyeon KIM
-
Publication number: 20160225333Abstract: A liquid crystal display includes: a liquid crystal capacitor; a first switching element which transmits a data voltage to the liquid crystal capacitor; a second switching element connected to the liquid crystal capacitor; and a transformation capacitor connected to the second switching element. A difference between a first time when the first switching element is turned on and a second time when the second switching element starts is turned on is greater than 1 horizontal period and less than 1 frame period.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Inventor: Jang-Kun SONG
-
Patent number: 9311877Abstract: A liquid crystal display includes: a liquid crystal capacitor; a first switching element which transmits a data voltage to the liquid crystal capacitor; a second switching element connected to the liquid crystal capacitor; and a transformation capacitor connected to the second switching element. A difference between a first time when the first switching element is turned on and a second time when the second switching element starts is turned on is greater than 1 horizontal period and less than 1 frame period.Type: GrantFiled: June 16, 2010Date of Patent: April 12, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jang-Kun Song
-
Patent number: 9223172Abstract: A liquid crystal display comprises: first and second panels facing each other; a compensation film and a first polarizer disposed on the first panel, the compensation film having phase retardation characteristics; and a second polarizer having a supporting film disposed on the second panel, the supporting film having phase retardation characteristics. In alternative embodiments, a supporting film is used in place of the compensation film. The supporting film has retardation characteristics.Type: GrantFiled: August 9, 2013Date of Patent: December 29, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyeong-Hyeon Kim, Jang-Kun Song
-
Publication number: 20150253603Abstract: A flat panel display having an improved picture quality is disclosed. In one embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.Type: ApplicationFiled: August 12, 2013Publication date: September 10, 2015Inventor: JANG-KUN SONG
-
Publication number: 20150145896Abstract: A stereoscopic image display device includes an image compensator, a signal controller, a data driver, and a display panel. The image compensator is configured to convert input image data to revised image data. The revised image data is obtained by compensating for temperature variations of the display panel. The signal controller is configured to output the revised image data. The data driver is configured to receive the revised image data. The display panel includes a plurality of pixels configured to display a left eye image and a right eye image in response to receiving a data voltage from the data driver. The image compensator includes a temperature compensation lookup table selector having a temperature compensation lookup table, and a standard lookup table selector having a standard lookup table and configured to select the revised image data according to correction values selected from the temperature compensation lookup table.Type: ApplicationFiled: July 16, 2014Publication date: May 28, 2015Inventors: HOON KIM, JANG-KUN SONG, HEE SEOP KIM, KI CHUL SHIN
-
Patent number: 9036122Abstract: An array substrate includes a lower substrate, a switching element and a pixel electrode. In the lower substrate, unit pixel areas are each divided into a plurality of domains. The switching element is disposed on the lower substrate and transmits a pixel signal. The pixel electrode is disposed on the unit pixel area and is electrically connected to the switching element. The pixel electrode includes a plurality of branch portions disposed thereon. A portion of the branch portions is longitudinally extended in a zigzag shape along different directions in correspondence with the domains.Type: GrantFiled: February 20, 2013Date of Patent: May 19, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Su-Jeong Kim, Jang-Kun Song, Sung-Hwan Hong, Kee-Bum Park, Seon-Ah Cho, Hye-Ran You, Su-Han Woo, Jae-Jin Lyu, Eun Cho
-
Publication number: 20140354936Abstract: A liquid crystal display includes a first insulating substrate. A pixel electrode is formed on a top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode is substantially rectangular in shape with first and second long sides, and first and second short sides. The pixel electrode is divided into an upper region defined by the first and second long sides and first short side, and a lower region defined by the first and second long sides and second short side. A common electrode is formed on a bottom surface of a second insulating substrate, and has a second opening pattern at each pixel area. The first and second opening patterns each have a plurality of openings, the openings of the first opening pattern and the second opening pattern being alternately arranged parallel to each other.Type: ApplicationFiled: August 14, 2014Publication date: December 4, 2014Inventors: Jang-Kun Song, Jae-Jin Ryu
-
Publication number: 20140313447Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.Type: ApplicationFiled: July 2, 2014Publication date: October 23, 2014Inventors: Jang-Kun SONG, Yeon-Sik HAM, Kang-Woo KIM, Yeon-Mun JEON, Jeong Hyun LEE
-
Patent number: 8817213Abstract: A liquid crystal display includes a first insulating substrate. A pixel electrode is formed on a top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode is substantially rectangular in shape with first and second long sides, and first and second short sides. The pixel electrode is divided into an upper region defined by the first and second long sides and first short side, and a lower region defined by the first and second long sides, and second short side. A common electrode is formed on a bottom surface of a second insulating substrate, and has a second opening pattern at each pixel area. The first and second opening patterns each have a plurality of openings, the openings of the first opening pattern and the second opening pattern being alternately arranged parallel to each other.Type: GrantFiled: June 3, 2013Date of Patent: August 26, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jang-Kun Song, Jae-Jin Ryu
-
Patent number: 8804081Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.Type: GrantFiled: October 6, 2010Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
-
Patent number: 8773605Abstract: A liquid crystal display includes first and second gate lines and first and second data lines, on a first substrate, a first thin film transistor connected to the first gate and data lines and including a first source and drain electrode, a second thin film transistor connected to the second gate and data lines and including a second source and drain electrode, first and second pixel electrodes contacting a portion of the first and second drain electrodes, respectively, a passivation layer on the first and second pixel electrodes and the first and second thin film transistors, and a reference electrode on a passivation layer and overlapping the first pixel electrode and the second pixel electrode. The reference electrode includes a plurality of branch electrodes. The first thin film transistor is right of the first data line and the second thin film transistor is left of the second data line.Type: GrantFiled: September 18, 2013Date of Patent: July 8, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hyun-Wuk Kim, Jang-Kun Song, Seon-Ah Cho, Eun-Je Jang, You-Sik Shin
-
Publication number: 20140184993Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.Type: ApplicationFiled: March 5, 2014Publication date: July 3, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: JANG-KUN SONG
-
Publication number: 20140184995Abstract: A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture to decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases.Type: ApplicationFiled: March 10, 2014Publication date: July 3, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jang-Kun SONG, Kyeong-Hyeon KIM, Kye-Hun LEE, Hea-Ri LEE
-
Patent number: 8743331Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.Type: GrantFiled: August 27, 2007Date of Patent: June 3, 2014Assignee: Samsung Display Co., Ltd.Inventor: Jang-Kun Song
-
Patent number: 8711309Abstract: A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases.Type: GrantFiled: February 22, 2013Date of Patent: April 29, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jang-Kun Song, Kyeong-Hyeon Kim, Kye-Hun Lee, Hea-Ri Lee