Patents by Inventor Min-Jeong Oh
Min-Jeong Oh 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: 20190187528Abstract: A display device may include the following elements: a first substrate; a pixel electrode overlapping the first substrate; a second substrate overlapping the first substrate; a plurality of optical members disposed on the second substrate, having identical structures, and protruding toward the first substrate; an overcoat layer directly contacting the optical members, covering the optical members, and positioned between the first substrate and the optical members; and a liquid crystal layer disposed between the pixel electrode and the overcoat layer. The pixel electrode may define one domain of the liquid crystal layer.Type: ApplicationFiled: September 19, 2018Publication date: June 20, 2019Inventors: Jung Suk BANG, Kwang Soo BAE, Min Jeong OH, Bo Ram LEE, Young Je CHO
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Publication number: 20190179204Abstract: A liquid crystal display including a first substrate on which a plurality of first pixels are defined, a first pixel electrode arranged for each of the first pixels on the first substrate, a second substrate arranged opposite the first substrate, a third substrate arranged on the second substrate and on which a plurality of second pixels are defined, a second pixel electrode arranged for each of the second pixels on the third substrate, and a fourth substrate arranged opposite the third substrate. Each of the first pixels has a first domain and each of the second pixels has a second domain, and a direction of the first domain of the first pixels and a direction of the second domain of the second pixels are different from each other.Type: ApplicationFiled: September 18, 2018Publication date: June 13, 2019Inventors: Jung Suk BANG, Kwang Soo BAE, Min Jeong OH, Bo Ram LEE, Young Je CHO
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Publication number: 20190146284Abstract: A liquid crystal display (LCD) device comprising: a substrate on which an active area that transmits light therethrough is defined; and a pixel electrode disposed on the substrate, wherein the pixel electrode includes a first stem electrode, which extends along a first direction, a second stem electrode, which extends along a second direction that is perpendicular to the first direction and intersects the first stem electrode to be divided into two halves by the first stem electrode, a third stem electrode, which extends along the second direction and is connected to the first stem electrode to be divided into two halves by an end of the first stem electrode, and a plurality of branch electrodes, which extend from the first through third stem electrodes.Type: ApplicationFiled: September 21, 2018Publication date: May 16, 2019Inventors: Kwang Soo BAE, Jung Suk BANG, Min Jeong OH, Bo Ram LEE, Young Je CHO
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Patent number: 10247975Abstract: Embodiments provide a display device including: a thin film transistor disposed on an insulation substrate including a plurality of pixels; a common electrode and a pixel electrode disposed on the thin film transistor to overlap each other while interposing an insulating layer therebetween; a liquid crystal layer filling microcavities differentiated by pixel electrodes, the pixel electrodes comprising the pixel electrode; and a roof layer that is disposed on a microcavity of the microcavities and includes an injection hole extending to the microcavity and a supporting member to support the microcavity; and an optical member disposed on the supporting member, wherein the injection hole is disposed between adjacent microcavities in a column direction, and the supporting member is disposed between adjacent microcavities in a row direction. Total reflection of light, bad alignment, and light leakage which may occur in the display device may be prevented by the optical member.Type: GrantFiled: November 13, 2015Date of Patent: April 2, 2019Assignee: Samsung Display Co., Ltd.Inventors: Hae Ju Yun, Yukinori Asakawa, Kwang Soo Bae, Min Jeong Oh
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Publication number: 20190086740Abstract: A liquid-crystal display (LCD) device includes a first substrate having pixels defined thereon, an insulating layer disposed on the first substrate, a pixel electrode disposed on the insulating layer in each of the pixels, an alignment layer disposed on the pixel electrode, a second substrate facing the first substrate, a wavelength conversion layer and a transmission layer disposed on the second substrate to face the first substrate, a common electrode disposed on the wavelength conversion layer and the transmission layer to face the first substrate, and a liquid-crystal layer interposed between the alignment layer and the common electrode. Each of the pixels includes an open area including at least one first side and that at least partially overlaps with the wavelength conversion layer and the transmission layer, and the insulating layer includes a pattern of grooves disposed adjacent to the at least one first side of the open area.Type: ApplicationFiled: May 15, 2018Publication date: March 21, 2019Inventors: Kwang Soo BAE, Jung Suk BANG, Min Jeong OH, Bo Ram LEE, Young Je CHO
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Patent number: 10197861Abstract: A liquid crystal display device includes a first substrate (FS) on which pixel regions are defined, a second substrate (SS) facing the FS, an alignment film disposed on a surface of the FS facing the SS, a wavelength conversion layer disposed on a surface of the SS facing the FS, a transmissive layer disposed on the surface of SS, a common electrode disposed on surfaces of the wavelength conversion layer and the transmissive layer facing the FS, a light-blocking member disposed on a surface of the common electrode facing the FS, and a liquid crystal layer between the alignment film and the light-blocking member. Each pixel region among the pixel regions includes: a pixel electrode disposed on the surface of the FS; an opening region in the light-blocking member; and a pixel overlap region outside the opening region, the pixel electrode overlapping the light-blocking member in the pixel overlap region.Type: GrantFiled: January 15, 2018Date of Patent: February 5, 2019Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Sung Man Kim, Jung Suk Bang, Min Jeong Oh, Bo Ram Lee
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Publication number: 20190033664Abstract: A liquid crystal display device includes a first substrate (FS) on which pixel regions are defined, a second substrate (SS) facing the FS, an alignment film disposed on a surface of the FS facing the SS, a wavelength conversion layer disposed on a surface of the SS facing the FS, a transmissive layer disposed on the surface of SS, a common electrode disposed on surfaces of the wavelength conversion layer and the transmissive layer facing the FS, a light-blocking member disposed on a surface of the common electrode facing the FS, and a liquid crystal layer between the alignment film and the light-blocking member. Each pixel region among the pixel regions includes: a pixel electrode disposed on the surface of the FS; an opening region in the light-blocking member; and a pixel overlap region outside the opening region, the pixel electrode overlapping the light-blocking member in the pixel overlap region.Type: ApplicationFiled: January 15, 2018Publication date: January 31, 2019Inventors: Kwang Soo BAE, Sung Man KIM, Jung Suk BANG, Min Jeong OH, Bo Ram LEE
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Patent number: 10162238Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a substrate; a data line and a thin film transistor disposed on the substrate; a common electrode and a pixel electrode disposed on the thin film transistor and overlapping each other by interposing an insulating layer therebetween; a roof layer formed to be separated from the pixel electrode and the common electrode while interposing a microcavity therebetween and having an injection hole partially exposing the microcavity; a liquid crystal layer filling the microcavity; an overcoat formed on the roof layer to cover the injection hole and sealing the microcavity. The pixel electrode includes an auxiliary electrode that is formed on the data line, the auxiliary electrode overlapping and being insulated from the data line.Type: GrantFiled: February 24, 2016Date of Patent: December 25, 2018Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Min Jeong Oh, Hae Ju Yun, Dae Ho Song, Taimei Kodaira, Yu Jin Kim
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Patent number: 10011102Abstract: A surfactant includes a hydrophobic functional group, a hydrophilic functional group and a linker disposed between the hydrophobic functional group and the hydrophilic functional group. The linker is connected to the hydrophobic functional group and the hydrophilic functional group. The linker has a cleavable bond with a bond energy lower than a bond energy of a bond included in the hydrophilic functional group and a bond included in the hydrophobic functional group.Type: GrantFiled: October 6, 2014Date of Patent: July 3, 2018Assignee: Amazon Technologies, Inc.Inventors: Sung-Chan Jo, Jae-Cheol Park, Sang-Ji Park, Hye-Young Park, Yiying Jia, Min-Jeong Oh, Hee-June Kwak
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Publication number: 20180039017Abstract: A light guide plate may include a substrate, a plurality of light blockers, a first light guide layer, and a second light guide layer. The light blockers may be positioned on the substrate and may include a first light blocker. The first light guide layer may be positioned on the substrate, may include base portions, and may include protrusions. The protrusions may protrude from the base portions and may include a first protrusion. The first light blocker may be positioned between the substrate and the first protrusion and may be positioned between two of the base portions. The second light guide layer may be positioned on the first light guide layer. Portions of the second light guide layers may overlap the base portion s and may be positioned between the protrusions.Type: ApplicationFiled: August 1, 2017Publication date: February 8, 2018Inventors: Jung Suk BANG, Min Jeong OH, Kwang Soo BAE, Hae Ju YUN
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Publication number: 20170315412Abstract: A display device according to an exemplary embodiment includes: a substrate; a thin film transistor; a pixel electrode; a common electrode; an insulation layer disposed between the pixel electrode and the common electrode; a roof layer spaced apart from the pixel electrode with a plurality of microcavities disposed therebetween; and a liquid crystal layer disposed in the microcavities; wherein the pixel electrode includes n branch electrodes that extend parallel with each other, a first connection electrode that connects a first end of a first branch electrode and a first end of a second branch electrode, and a second connection electrode that connects second ends of the n branch electrodes, where the n branch electrodes each has a shape that is bent at least once on a plan view, and the first branch electrode includes a first sub-branch electrode and a second sub-branch that are spaced apart from each other.Type: ApplicationFiled: April 20, 2017Publication date: November 2, 2017Inventors: Kwang Soo BAE, Jung Woo PARK, Jung Suk BANG, Min Jeong OH, Hae Ju YUN
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Publication number: 20160291411Abstract: The present invention relates to a liquid crystal display and a manufacturing method thereof. An exemplary embodiment of the present invention provides a manufacturing method of a liquid crystal display, comprising: forming a thin film transistor on a substrate; forming a passivation layer on the thin film transistor; forming a first electrode and a second electrode generating a horizontal electric field on the passivation layer; forming a sacrificial layer on the second electrode; forming a roof layer on the sacrificial layer; forming a plurality of microcavities in which a liquid crystal injection hole is formed by removing the sacrificial layer; injecting a photo-alignment material into the microcavity; irradiating the photo-alignment material with polarized light of a first wavelength and polarized light of a second wavelength; baking the photo-alignment material; and injecting a liquid crystal material into the plurality of microcavities.Type: ApplicationFiled: March 2, 2016Publication date: October 6, 2016Inventors: Kwang Soo BAE, Jung Suk BANG, Min Jeong OH, Hae Ju YUN
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Publication number: 20160259223Abstract: A display device according to an exemplary embodiment of the present inventive concept includes: a substrate; a data line and a thin film transistor disposed on the substrate; a common electrode and a pixel electrode disposed on the thin film transistor and overlapping each other by interposing an insulating layer therebetween; a roof layer formed to be separated from the pixel electrode and the common electrode while interposing a microcavity therebetween and having an injection hole partially exposing the microcavity; a liquid crystal layer filling the microcavity; an overcoat formed on the roof layer to cover the injection hole and sealing the microcavity. The pixel electrode includes an auxiliary electrode that is formed on the data line, the auxiliary electrode overlapping and being insulated from the data line.Type: ApplicationFiled: February 24, 2016Publication date: September 8, 2016Inventors: Kwang Soo BAE, Min Jeong OH, Hae Ju YUN, Dae Ho SONG, Taimei KODAIRA, Yu Jin KIM
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Publication number: 20160209699Abstract: Embodiments provide a display device including: a thin film transistor disposed on an insulation substrate including a plurality of pixels; a common electrode and a pixel electrode disposed on the thin film transistor to overlap each other while interposing an insulating layer therebetween; a liquid crystal layer filling microcavities differentiated by pixel electrodes, the pixel electrodes comprising the pixel electrode; and a roof layer that is disposed on a microcavity of the microcavities and includes an injection hole extending to the microcavity and a supporting member to support the microcavity; and an optical member disposed on the supporting member, wherein the injection hole is disposed between adjacent microcavities in a column direction, and the supporting member is disposed between adjacent microcavities in a row direction. Total reflection of light, had alignment, and light leakage which may occur in the display device may be prevented by the optical member.Type: ApplicationFiled: November 13, 2015Publication date: July 21, 2016Inventors: Hae Ju YUN, Yukinori ASAKAWA, Kwang Soo BAE, Min Jeong OH
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Publication number: 20150266044Abstract: The present invention relates to a slot die coater preventing contamination of another layer contacting a coating layer, and a coating method using the same. The slot die coater according to an exemplary embodiment of the present invention includes a slit nozzle configured to deposit a photo-curable material upon a substrate, and an exposure unit coupled to the slit nozzle and positioned adjacent thereto, the exposure unit configured to irradiate light upon the photo-curable material deposited upon the substrate.Type: ApplicationFiled: September 22, 2014Publication date: September 24, 2015Inventors: Jae Cheol PARK, Yeun Tae KIM, Gyeong Eun EOH, Dae Ho SONG, Min Jeong OH, Jun Heui LEE
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Publication number: 20150029577Abstract: A surfactant includes a hydrophobic functional group, a hydrophilic functional group and a linker disposed between the hydrophobic functional group and the hydrophilic functional group. The linker is connected to the hydrophobic functional group and the hydrophilic functional group. The linker has a cleavable bond with a bond energy lower than a bond energy of a bond included in the hydrophilic functional group and a bond included in the hydrophobic functional group.Type: ApplicationFiled: October 6, 2014Publication date: January 29, 2015Inventors: Sung-Chan Jo, Jae-Cheol Park, Sang-Ji Park, Hye-Young Park, Yiying Jia, Min-Jeong Oh, Hee-June Kwak
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Publication number: 20140368781Abstract: In an aspect, a liquid crystal display is provided. The liquid crystal display may include a substrate, a thin film transistor disposed on the substrate, a pixel electrode connected to one terminal of the thin film transistor, a roof layer disposed to face the pixel electrode, and a capping layer disposed on the roof layer, in which a microcavity having a liquid crystal injection hole is formed between the pixel electrode and the roof layer, the microcavity forms a liquid crystal layer including a liquid crystal molecule, and the capping layer covers the liquid crystal injection hole and includes a water-soluble polymer material.Type: ApplicationFiled: October 29, 2013Publication date: December 18, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Dae Ho Song, Jae Cheol Park, Min-Woo Lee, Gyeong Eun Eoh, Min Jeong Oh
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Patent number: 8854719Abstract: A surfactant includes a hydrophobic functional group, a hydrophilic functional group and a linker disposed between the hydrophobic functional group and the hydrophilic functional group, and the linker is connected to the hydrophobic functional group and the hydrophilic functional group. The linker has a cleavable bond with a bond energy lower than a bond energy of a bond included in the hydrophilic functional group and a bond included in the hydrophobic functional group.Type: GrantFiled: September 6, 2012Date of Patent: October 7, 2014Assignee: Liquavista B.V.Inventors: Sung-Chan Jo, Jae-Cheol Park, Sang-Ji Park, Hye-Young Park, Yiying Jia, Min-Jeong Oh, Hee-June Kwak
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Publication number: 20130057940Abstract: A surfactant includes a hydrophobic functional group, a hydrophilic functional group and a linker disposed between the hydrophobic functional group and the hydrophilic functional group, and the linker is connected to the hydrophobic functional group and the hydrophilic functional group. The linker has a cleavable bond with a bond energy lower than a bond energy of a bond included in the hydrophilic functional group and a bond included in the hydrophobic functional group.Type: ApplicationFiled: September 6, 2012Publication date: March 7, 2013Inventors: Sung-Chan JO, Jae-Cheol Park, Sang-Ji Park, Hye-Young Park, Yiying Jia, Min-Jeong Oh, Hee-June Kwak
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Publication number: 20060147835Abstract: A chemically-amplified photoresist composition includes a polymer resin, a photo acid generator (PAG), and a thermal acid generator (TAG), where a thermal deprotection temperature of the polymer resin is greater than an acid generation temperature of the TAG. The photoresist composition may be utilized in a photolithography process which includes subjecting a layer of the photoresist composition to photon exposure which causes the PAG to decompose into acid, subjecting the photon-exposed layer of the photo resist composition to a heat treatment which causes the TAG to decompose into acid, and subjecting the heat-treated layer of photoreist composition to a post-exposure bake (PEB) at a temperature which is greater than the temperature of the heat treatment.Type: ApplicationFiled: December 5, 2005Publication date: July 6, 2006Inventors: Sook Lee, Min-jeong Oh, Suk-joo Lee