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).
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Publication number: 20120314174Abstract: 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: August 21, 2012Publication date: December 13, 2012Applicant: Samsung Display Co., Ltd.Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
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Patent number: 8264651Abstract: A TFT array is disclosed that includes a substrate, a gate line formed on the substrate, the gate line extending in a first direction; a data line insulated from the gate line, the data line extending in a second direction different from the first direction and crossing the gate line; and a pixel, positioned adjacent an intersection of the gate line and the data line, 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 electrodeType: GrantFiled: July 30, 2008Date of Patent: September 11, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Seon-Ah Cho, Ji-Won Sohn, Hee-Wook Do, Jun-Hee Na
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Patent number: 8253908Abstract: 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: September 12, 2011Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
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Patent number: 8237908Abstract: A method of manufacturing a liquid crystal display includes; forming a mother substrate assembly by disposing a liquid crystal mixture layer having liquid crystals and a light curable alignment supplement between a first mother substrate and a second mother substrate of a liquid crystal display, and disposing a light curable sealant surrounding the liquid crystal mixture layer, pre-tilting liquid crystal molecules of the liquid crystal mixture layer by applying a voltage to the first mother substrate and the second mother substrate, and simultaneously hardening the alignment supplement and the sealant by radiating light to the mother substrate assembly while applying the voltage to the first mother substrate and the second mother substrate.Type: GrantFiled: October 29, 2008Date of Patent: August 7, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Min-Goo Seok, Jae-Jin Lyu, Seung-Beom Park, Jong-Ho Son, Ji-Won Sohn, Myeong-Ha Kye, Hoon Kim, Jun-Hee Na
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Publication number: 20120113371Abstract: 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: ApplicationFiled: January 18, 2012Publication date: May 10, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ji-Won SOHN, Jun-Woo LEE, Jiangang LU, Seung-Hoon LEE, Seon-Ah CHO, Jun-Hee NA
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Patent number: 8154695Abstract: A liquid crystal display (LCD) comprises a first substrate comprising a pixel electrode comprising one or more first domain-forming features and further comprising a first vertical alignment film disposed on the pixel electrode; a second substrate facing the first substrate and comprising a common electrode which comprises one or more second domain-forming features and further comprises a second vertical alignment film disposed on the common electrode; and a liquid crystal compound interposed between the first and second substrates, wherein the liquid crystal compound comprises liquid crystal molecules, ultraviolet (UV) hardening monomers and UV hardening initiators, and the liquid crystal molecules are pre-tilted to form an angle greater than 88 degrees but less than 90 degrees with respect to the first substrate when no driving power is applied to the pixel and common electrodes. Fast response time is provided in some embodiments.Type: GrantFiled: April 9, 2010Date of Patent: April 10, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Won Sohn, Jong-ho Son, Seung-beom Park, Seon-ah Cho, Jun-hee Na
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Patent number: 8120736Abstract: 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 24, 2008Date of Patent: February 21, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Won Sohn, Jun-Woo Lee, Jiangang Lu, Seung-Hoon Lee, Seon-Ah Cho, Jun-Hee Na
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Patent number: 8098353Abstract: A liquid crystal display includes; a gate line, a data line disposed substantially perpendicular to the gate line, a switching element connected to the gate line and the data line, a pixel electrode connected to the switching element, and having a first inclination direction determining member including at least one first oblique portion forming an oblique angle with the gate line and the data line, and an inclination direction assistance member disposed adjacent to the first inclination direction determining member, and substantially parallel to the first oblique portion.Type: GrantFiled: August 7, 2008Date of Patent: January 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hoon Kim, Ji-Won Sohn, Seung-Beom Park, Yoon-Sung Um, Jin-Won Park, Hye-Ran Yoo
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Publication number: 20110317119Abstract: 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: September 12, 2011Publication date: December 29, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Mee-Hye JUNG, Ji-Won SOHN, Jae-Jin LYU, Chong-Chul CHAI
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Patent number: 8081282Abstract: A liquid crystal display device includes a first substrate having a gate line and two data lines crossing with the gate line to define a pixel, a first pixel electrode connected to the gate line and the first data line, and a second pixel electrode connected to the gate line and the second data line. A second substrate opposes the first substrate and includes a common electrode having a common electrode cutting pattern. The pixel electrode includes a pixel electrode cutting pattern to form domains and sub domains in the pixel with the common electrode cutting pattern. A liquid crystal layer is arranged between the first and second substrates. The pixel electrodes include bent portions. The pixel electrode and the common electrode include sub cutting patterns extending towards the sub domains at the bent portions.Type: GrantFiled: December 4, 2007Date of Patent: December 20, 2011Assignees: Samsung Electronics Co., Ltd., Industrial Cooperation Foundation of Chonbuk National UniversityInventors: Seung-hee Lee, Ji-won Sohn, Yeon-mun Jeon, Seong-jin Hwang, Jae-jin Lyu
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Patent number: 8045112Abstract: A display device includes: a first panel having a pixel region including a pixel electrode therein; a second panel having a common electrode facing the first panel; a liquid crystal layer having vertically aligned liquid crystal molecules interposed between the first and second panels; a first alignment layer disposed on the pixel electrode; and a second alignment layer disposed on the common electrode. At least one of the pixel electrode and the common electrode has a micro slit pattern. At least one of the first and second alignment layers divides the pixel region into domains, is formed to have pretilt directions corresponding to a given domain, and pretilts the vertically aligned liquid crystal molecules in the given domain. A direction of summed horizontal components of a fringe field at an edge of the pixel region is substantially equal to a direction of summed horizontal components of a pretilt direction of the at least one of the first and second alignment layer.Type: GrantFiled: June 27, 2008Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jun-woo Lee, Hwa-sung Woo, Baek-kyun Jeon, Ji-won Sohn, In-suk Lee, Kyoung-tae Kim
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Patent number: 8035787Abstract: 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: December 4, 2008Date of Patent: October 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
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Publication number: 20110025967Abstract: 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: April 21, 2010Publication date: February 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Ji-Won SOHN, Joo-Seok YEOM, Jeong-Uk HEO, Ho-Yun BYUN, Jung-Hun LEE, Na-Young SHIN
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Publication number: 20110007059Abstract: 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: ApplicationFiled: September 13, 2010Publication date: January 13, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-Wook DO, Ji-Won SOHN, Nak-Cho CHOI, Jianang LU, Hak-Sun CHANG, Chang-Hun LEE
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Patent number: 7842336Abstract: The invention relates to a method of forming an overcoat layer, containing a hydrophobic functional group and a hydrophilic functional group, that omits a post-treatment process after the overcoat layer is formed. The invention also relates to a method of producing a color filter substrate, as well as a color filter substrate and a liquid crystal display produced using the same. The method of forming an overcoat layer includes adding an initiator to polymerizable surfactant monomers, coating the polymerizable surfactant monomers, polymerizing the coated polymerizable surfactant monomers, and forming the overcoat layer through a polymerization reaction of the polymerizable surfactant monomers.Type: GrantFiled: January 25, 2007Date of Patent: November 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Won Park, Ji-Won Sohn, Seung-Beom Park, Seon-Ah Cho
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Patent number: 7843538Abstract: In a liquid crystal display device, the device includes a first substrate, a second substrate and a liquid crystal layer interposed therebetween. The first substrate includes a pixel electrode, a thin film transistor connected to the pixel electrode, and also a hitch to connect both a lower and upper electrode of the pixel electrode. The second substrate includes a common electrode having a lower domain division part and an upper domain division part, in which each of domain division part is formed at the position corresponding to the lower and upper electrode of the pixel electrode, respectively. Through the electric field controller connected at both sides of the upper electrode of the pixel electrode, quality of display image can improve without a darkening area occurring at one part of the unit pixel.Type: GrantFiled: May 10, 2007Date of Patent: November 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Mee-Hye Jung, Ji-Won Sohn, Sung-Hoon Yang, Jin-Won Park, Seon-Ah Cho
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Patent number: 7839369Abstract: A liquid crystal display is provided, which includes: a plurality of pixels; a gray voltage generator generating a plurality of gray voltages; an image signal modifier that receives first, second, and third image signals for a pixel in three successive frames, generates a preliminary signal for the second image signal based on the first image signal, and generates a modified signal for the second image signal based on the preliminary signal and the third image signal; and a data driver converting the modified signal into a data voltage selected from the gray voltages and applying the data voltage to the pixel, wherein a range of the gray voltages is substantially equal to a range of target voltages for obtaining target luminance of the pixel, and a highest available value for the modified signal is equal to a highest available value of the image signals.Type: GrantFiled: September 30, 2005Date of Patent: November 23, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hak-Sun Chang, Ji-Won Sohn, Nak-Cho Choi, Hyun-Wuk Kim, Chang-Hun Lee, Jae-Jin Lyu
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Patent number: 7817123Abstract: 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: February 7, 2006Date of Patent: October 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Wook Do, Ji-Won Sohn, Nak-Cho Choi, Jiangang Lu, Hak-Sun Chang, Chang-Hun Lee
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Patent number: 7812909Abstract: A liquid crystal display includes a first insulating substrate, a pixel electrode disposed on the first insulating substrate, a second insulating substrate facing the first insulating substrate, a common electrode disposed on the second insulating substrate without patterning, and a liquid crystal layer interposed between the first and second insulating substrates. The pixel electrode is divided into a plurality of domains that include a plurality of microelectrodes arranged substantially parallel to each other and are connected through a connecting pattern. The connecting pattern is formed by connecting the end of microelectrodes of each domain to the side of microelectrodes of adjacent domains.Type: GrantFiled: March 6, 2008Date of Patent: October 12, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seon-Ah Cho, Ji-Won Sohn, Jun-Hee Na
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Patent number: 7804569Abstract: A panel assembly includes a gate wire, a data wire, a plurality of pixel electrodes, a liquid crystal layer, and a common electrode. The gate wire includes a plurality of gate lines and the data wire includes a plurality of data lines crossing and insulated from the gate lines. The pixel electrodes are insulated from each other and disposed on the data wire. The liquid crystal layer is disposed on the pixel electrodes and includes liquid crystal molecules, and a common electrode is disposed on the liquid crystal layer. The gate lines cross a center of the pixel electrodes, and the common electrode includes a plurality of cutting patterns that overlap the gate lines.Type: GrantFiled: November 20, 2007Date of Patent: September 28, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Ji-Won Sohn, Jin-Won Park, Seon-Ah Cho, Mee-Hye Jung, Sung-Hoon Yang