Patents by Inventor Ji-Won Sohn
Ji-Won Sohn 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: 9244310Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.Type: GrantFiled: June 13, 2014Date of Patent: January 26, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Myeong-Ha Kye, Jun-Hyup Lee, Jae-Jin Lyu, Seung-Beom Park, Jong-Ho Son, Ji-Won Sohn, Hoon Kim, Min-Goo Seok, Jun-Hee Na, Min-Jae Kim, Su-Han Woo
-
Publication number: 20150301409Abstract: In a method of forming a liquid crystal display device, a black matrix is disposed on a substrate including a switching element formed thereon, a color filter is disposed on the switching element, a pixel electrode is electrically connected to the switching element, and a first alignment layer is disposed on the pixel electrode, to form a first substrate. A second substrate including a second alignment layer is formed. At least one of the first alignment layer and the second alignment layer includes a reactive mesogen. A liquid crystal layer is interposed between the first substrate and the second substrate. A light is irradiated onto the second substrate to provide pretilt angles of liquid crystal molecules of the liquid crystal layer.Type: ApplicationFiled: June 29, 2015Publication date: October 22, 2015Inventors: Ji-Won SOHN, Joo-Seok YEOM, Jeong-Uk HEO, Ho-Yun BYUN, Jung-Hun LEE, Na-Young SHIN
-
Patent number: 9075265Abstract: In a method of forming a liquid crystal display device, a black matrix is disposed on a substrate including a switching element formed thereon, a color filter is disposed on the switching element, a pixel electrode is electrically connected to the switching element, and a first alignment layer is disposed on the pixel electrode, to form a first substrate. A second substrate including a second alignment layer is formed. At least one of the first alignment layer and the second alignment layer includes a reactive mesogen. A liquid crystal layer is interposed between the first substrate and the second substrate. A light is irradiated onto the second substrate to provide pretilt angles of liquid crystal molecules of the liquid crystal layer.Type: GrantFiled: April 21, 2010Date of Patent: July 7, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji-Won Sohn, Joo-Seok Yeom, Jeong-Uk Heo, Ho-Yun Byun, Jung-Hun Lee, Na-Young Shin
-
Publication number: 20150126093Abstract: A liquid crystal display device that includes an array substrate, an opposite substrate and a liquid crystal display layer is described. The array substrate includes a pixel electrode and a lower alignment layer. The pixel electrode has a plurality of slit portions extending in different directions. The lower alignment layer includes a reactive mesogen (RM) diamine is formed on the pixel electrode to induce an alignment direction of the liquid crystal molecules. An upper alignment layer is formed on a common electrode of the opposite substrate. The RM is cured at surfaces of the lower and upper alignment layers in response to ultraviolet (UV) light, so that liquid crystal molecules have a pretilt angle. Therefore, the aperture ratio and the response time may be improved, and afterimages may be decreased, so that display quality may be improved.Type: ApplicationFiled: January 13, 2015Publication date: May 7, 2015Inventors: Keun-Chan OH, Jae-Jin LYU, Ji-Won SOHN, Seon-Ah CHO
-
Publication number: 20150062516Abstract: A liquid crystal display includes a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: ApplicationFiled: November 14, 2014Publication date: March 5, 2015Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
-
Patent number: 8962107Abstract: A liquid crystal display device that includes an array substrate, an opposite substrate and a liquid crystal display layer is described. The array substrate includes a pixel electrode and a lower alignment layer. The pixel electrode has a plurality of slit portions extending in different directions. The lower alignment layer includes a reactive mesogen (RM) diamine is formed on the pixel electrode to induce an alignment direction of the liquid crystal molecules. An upper alignment layer is formed on a common electrode of the opposite substrate. The RM is cured at surfaces of the lower and upper alignment layers in response to ultraviolet (UV) light, so that liquid crystal molecules have a pretilt angle. Therefore, the aperture ratio and the response time may be improved, and afterimages may be decreased, so that display quality may be improved.Type: GrantFiled: January 7, 2010Date of Patent: February 24, 2015Assignee: Samsung Display Co., Ltd.Inventors: Keun-Chan Oh, Jae-Jin Lyu, Ji-Won Sohn, Seon-Ah Cho
-
Patent number: 8909020Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: GrantFiled: November 12, 2013Date of Patent: December 9, 2014Assignee: Samsung Display Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
-
Patent number: 8902392Abstract: A TFT array is disclosed that includes a substrate, a gate line, a data line; and a pixel, wherein the pixel comprises a first pixel electrode portion comprising a plurality of spaced apart first electrode lines, the first pixel electrode portion having an associated TFT coupled to the first electrode portion, a second pixel electrode portion comprising a plurality of spaced apart second electrode lines, the second pixel electrode portion capacitively coupled with the first pixel electrode portion, wherein a width of each of the first electrode lines of the first pixel electrode portion is narrower than a width of each of the second electrode lines of the second pixel electrode portion, and an interval between adjacent first electrode lines of the first pixel electrode portion is smaller than an interval between adjacent second electrode lines of the second pixel electrode portion.Type: GrantFiled: August 24, 2012Date of Patent: December 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seon-Ah Cho, Ji-Won Sohn, Hee-Wook Do, Jun-Hee Na
-
Publication number: 20140293203Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.Type: ApplicationFiled: June 13, 2014Publication date: October 2, 2014Inventors: Myeong-Ha KYE, Jun-Hyup LEE, Jae-Jin LYU, Seung-Beom PARK, Jong-Ho SON, Ji-Won SOHN, Hoon KIM, Min-Goo SEOK, Jun-Hee NA, Min-Jae KIM, Su-Han WOO
-
Publication number: 20140184964Abstract: A display device including: a substrate including a display area in which pixels are positioned and a peripheral area around the display area; a common electrode and a pixel electrode that are positioned on the display area and overlapping with each other, with a first insulating layer disposed therebetween; a common voltage line positioned on or below the common electrode and contacting the common electrode; an edge common voltage line connected with the common voltage line and formed along an edge of the display area; and a first common voltage transfer line contacting the edge common voltage line in the peripheral area and configured to transfer a common voltage to the common voltage line.Type: ApplicationFiled: June 26, 2013Publication date: July 3, 2014Inventors: Hyung Sup BYEON, Sung Hoon Kim, Ji-Won Sohn
-
Patent number: 8760607Abstract: A liquid crystal display (“LCD”) panel includes a display substrate, an opposite substrate and a liquid crystal layer. The display substrate includes a pixel electrode and a first cured layer. The first cured layer has various pretilt angles. The opposite substrate includes a common electrode and a second cured layer. The second cured layer has various pretilt angles. The liquid crystal layer includes a plurality of liquid crystal molecules pretilted at the various pretilt angles by the first and second cured layers.Type: GrantFiled: April 6, 2009Date of Patent: June 24, 2014Assignee: Samsung Display Co., Ltd.Inventors: Myeong-Ha Kye, Jae-Jin Lyu, Ji-Won Sohn
-
Patent number: 8755013Abstract: A liquid crystal display device includes an array substrate, an opposite substrate and a liquid crystal display layer. The array substrate includes a pixel electrode and a lower reactive mesogen layer. The pixel electrode includes a plurality of slit portions disposed on a plurality of domains in different directions. The lower reactive mesogen layer is disposed on the pixel electrode to induce an inclined direction of liquid crystal molecules. The opposite substrate includes an upper substrate. An upper reactive mesogen layer is disposed on a common electrode of the opposite substrate. The liquid crystal layer includes liquid crystal molecules arranged to have a pretilt angle between a surface of the lower reactive mesogen layer and a surface of the upper reactive mesogen layer.Type: GrantFiled: April 6, 2009Date of Patent: June 17, 2014Assignee: Samsung Display Co., Ltd.Inventors: Myeong-Ha Kye, Jun-Hyup Lee, Jae-Jin Lyu, Seung-Beom Park, Jong-Ho Son, Ji-Won Sohn, Hoon Kim, Min-Goo Seok, Jun-Hee Na, Min-Jae Kim, Su-Han Woo
-
Publication number: 20140063395Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: ApplicationFiled: November 12, 2013Publication date: March 6, 2014Applicant: Samsung Display Co., Ltd.Inventors: Mee-Hye JUNG, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
-
Patent number: 8629820Abstract: A liquid crystal display (“LCD”) includes a plurality of gate lines, a plurality of data lines intersecting the gate lines, a plurality of switching elements connected to the gate lines and the data lines, a plurality of storage electrodes, a plurality of storage electrode lines connected to the storage electrodes, a plurality of pixel electrodes connected to the switching elements and overlapping the storage electrodes, a gate driver generating gate signals having a gate-on voltage and a gate-off voltage to apply to the gate lines, a data driver generating data voltages corresponding to externally applied image signals to apply to the data lines, and a storage electrode driver generating storage electrode signals having a reference voltage, a high voltage larger than the reference voltage, and a low voltage smaller than the reference voltage to apply to the storage electrode lines.Type: GrantFiled: September 13, 2010Date of Patent: January 14, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Wook Do, Ji-Won Sohn, Nak-Cho Choi, Jiangang Lu, Hak-Sun Chang, Chang-Hun Lee
-
Patent number: 8610866Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: GrantFiled: June 3, 2013Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
-
Publication number: 20130265517Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: ApplicationFiled: June 3, 2013Publication date: October 10, 2013Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
-
Patent number: 8462305Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.Type: GrantFiled: August 21, 2012Date of Patent: June 11, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
-
Patent number: 8390767Abstract: A method of manufacturing a display panel, the method includes forming a display panel including a first substrate, the first substrate including a pixel electrode disposed thereon, a second substrate including a common electrode disposed thereon, and a liquid crystal layer interposed between the first and the second substrates, the liquid crystal layer including a plurality of liquid crystal molecules and a plurality of ultraviolet (“UV”)-curable particles; and curing a portion of the UV-curable particles by irradiating light on the display panel, wherein an exposure voltage, which is greater than a maximum data voltage corresponding to maximum grayscale data of the display panel, is applied between the pixel electrode and the common electrode. Also described is a display panel.Type: GrantFiled: April 1, 2009Date of Patent: March 5, 2013Assignee: Samsung Display Co., Ltd.Inventors: Min-Jae Kim, Jae-Jin Lyu, Seung-Beom Park, Ji-Won Sohn, Jun-Hyup Lee, Myeong-Ha Kye, Hoon Kim, Min-Goo Seok
-
Patent number: 8384865Abstract: A liquid crystal display is provided that includes first and second panels facing each other, an alignment layer disposed on at least one of the first and second panels, a fixing member disposed on the surface of the alignment layer to fix the alignment structure of the alignment layer, and liquid crystal materials disposed between the first and second panels. The liquid crystal materials include liquid crystal molecules that have a pre-tilt angle and are disposed on the alignment layer.Type: GrantFiled: January 18, 2012Date of Patent: February 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ji-Won Sohn, Jun-Woo Lee, Jiangang Lu, Seung-Hoon Lee, Seon-Ah Cho, Jun-Hee Na
-
Publication number: 20130009156Abstract: A TFT array is disclosed that includes a substrate, a gate line, a data line and a pixel, wherein the pixel comprises a first pixel electrode portion comprising a plurality of spaced apart first electrode lines, the first pixel electrode portion having an associated TFT coupled to the first electrode portion, a second pixel electrode portion comprising a plurality of spaced apart second electrode lines, the second pixel electrode portion capacitively coupled with the first pixel electrode portion, wherein a width of each of the first electrode lines of the first pixel electrode portion is narrower than a width of each of the second electrode lines of the second pixel electrode portion, and an interval between adjacent first electrode lines of the first pixel electrode portion is smaller than an interval between adjacent second electrode lines of the second pixel electrode portion.Type: ApplicationFiled: August 24, 2012Publication date: January 10, 2013Inventors: Seon-Ah CHO, Ji-Won SOHN, Hee-Wook DO, Jun-Hee Na