Patents by Inventor Young-Je Cho
Young-Je Cho 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: 20240175907Abstract: A defect evaluation method for evaluating a defect due to electrostatic discharge includes obtaining a charged map of a lower part of a test object, preparing a test pattern simulating the charged map of the lower part of the test object, contacting the test object to the test pattern, and applying a voltage to the test pattern. Accordingly, to simulate and evaluate the defect that may occur during a manufacturing process of the test object in advance. In addition, using a result obtained by the simulation and the evaluation, an arrangement of a portion vulnerable to the defect of a structure in the test object may be changed.Type: ApplicationFiled: July 12, 2023Publication date: May 30, 2024Inventors: YOUNG JE CHO, SANG DO YU
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Patent number: 11908987Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.Type: GrantFiled: November 17, 2022Date of Patent: February 20, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Soo Bae, Dong Uk Kim, Beom Soo Park, Min Jeong Oh, Young Je Cho
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Patent number: 11803073Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: June 6, 2022Date of Patent: October 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Publication number: 20230320148Abstract: A display device includes a first data line group disposed in a fan-out area and including a plurality of first data lines extending to a display area adjacent to the fan-out area, a second data line group disposed in the fan-out area and including a plurality of second data lines extending to the display area adjacent to the fan-out area, a plurality of pixels disposed in the display area and connected to the first and second data lines, and a dummy pattern disposed in the fan-out area between the first data line group and the second data line group, where the dummy pattern is in a floating state.Type: ApplicationFiled: November 22, 2022Publication date: October 5, 2023Inventors: DOGI LIM, YOUNG JE CHO, JEONGIL KIM, KWANG-MIN LEE
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Publication number: 20230197909Abstract: A display device may include: a substrate; first and second electrode on the substrate; light emitting element between the first and second electrodes; a barrier structure on the substrate and including a first surface, a second surface, and a third surface; a light conversion layer on the barrier structure; and a passivation layer on the light conversion layer. A first space defined by the second and third surfaces may be between the substrate and the barrier structure. A second space defined by the first and second surfaces may be between the barrier structure and the passivation layer. The first and second spaces may be alternately located in the first direction. The light emitting element may be in the first space. The light conversion layer may be in the at least one second space.Type: ApplicationFiled: February 10, 2023Publication date: June 22, 2023Inventors: Kwang Soo BAE, Beom Soo PARK, Min Jeong OH, Young Je CHO
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Publication number: 20230108979Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.Type: ApplicationFiled: November 17, 2022Publication date: April 6, 2023Applicant: Samsung Display Co., LTD.Inventors: Kwang Soo BAE, Dong Uk KIM, Beom Soo PARK, Min Jeong OH, Young Je CHO
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Patent number: 11600750Abstract: A display device may include: a substrate; first and second electrode on the substrate; light emitting element between the first and second electrodes; a barrier structure on the substrate and including a first surface, a second surface, and a third surface; a light conversion layer on the barrier structure; and a passivation layer on the light conversion layer. A first space defined by the second and third surfaces may be between the substrate and the barrier structure. A second space defined by the first and second surfaces may be between the barrier structure and the passivation layer. The first and second spaces may be alternately located in the first direction. The light emitting element may be in the first space. The light conversion layer may be in the at least one second space.Type: GrantFiled: April 23, 2020Date of Patent: March 7, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Beom Soo Park, Min Jeong Oh, Young Je Cho
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Patent number: 11569305Abstract: A display panel including a light emitting element to emit a source light and including a first electrode, a light emitting layer disposed on the first electrode, and a second electrode disposed on the light emitting layer and outputting a source light, a pixel definition layer including an opening exposing at least a portion of the first electrode, an optical conversion pattern disposed on the pixel definition layer, a reflection pattern disposed on the light emitting element and including an inclined surface, and a first light blocking pattern disposed outside from the optical conversion pattern when viewed in a plan view.Type: GrantFiled: July 28, 2020Date of Patent: January 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Beomsoo Park, Eun-Ae Kwak, Minjeong Oh, Young Je Cho
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Patent number: 11531236Abstract: 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: GrantFiled: September 18, 2018Date of Patent: December 20, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jung Suk Bang, Kwang Soo Bae, Min Jeong Oh, Bo Ram Lee, Young Je Cho
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Patent number: 11522113Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.Type: GrantFiled: August 14, 2020Date of Patent: December 6, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Soo Bae, Dong Uk Kim, Beom Soo Park, Min Jeong Oh, Young Je Cho
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Publication number: 20220308380Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: June 6, 2022Publication date: September 29, 2022Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 11353730Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: December 17, 2020Date of Patent: June 7, 2022Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Patent number: 11175545Abstract: A liquid crystal display according to an exemplary embodiment of the present disclosure includes: a gate line, a data line, and a compensation voltage line disposed on an insulation substrate; a first passivation layer disposed on the gate line, the data line, and the compensation voltage line; a pixel electrode connected to the gate line and the data line, and a compensation electrode connected to the compensation voltage line, disposed on the first passivation layer; and a common electrode formed on the first passivation layer, wherein the compensation electrode overlaps at least a portion of the data line, and the compensation voltage line is formed with the same layer as the data line.Type: GrantFiled: December 9, 2014Date of Patent: November 16, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Man Kim, Jun Ho Song, Tong Young Kim, Su Jin Lee, Yeon-Mun Jeon, Young Je Cho
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Patent number: 11169320Abstract: A light source member including a substrate, and a plurality of unit light source cells disposed on the substrate and arranged in a matrix, each of the unit light source cells including a light source driving electrode disposed on the substrate, a light source disposed on the substrate and electrically connected to the light source driving electrode, an organic layer disposed on the substrate and exposing the light source and at least a part of the light source driving electrode, the organic layer having an upper surface including a concavo-convex pattern, and a heat dissipation layer disposed on the organic layer and contacting the light source driving electrode.Type: GrantFiled: January 6, 2020Date of Patent: November 9, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Min Jeong Oh, Kwang Soo Bae, Beom Soo Park, Young Je Cho
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Patent number: 11061268Abstract: A display device and a method of manufacturing a display device, the display device having a plurality of pixels defined therein and including: a first substrate; a partition wall disposed on the first substrate to define openings corresponding to the plurality of pixels; and color conversion patterns disposed in the openings. The partition wall includes a light-transmitting structure having a groove and a first partition wall portion disposed in the groove and having a higher optical density than the light-transmitting structure.Type: GrantFiled: November 28, 2017Date of Patent: July 13, 2021Assignee: Samsung Display Co., Ltd.Inventors: Sang Ji Park, Kang Uk Kim, Hae Ju Yun, Don Chan Cho, Young Je Cho
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Patent number: 11036104Abstract: A liquid crystal display (LCD) including a first pixel electrode including a first stem portion extending in a first direction, a second stem portion connected to a side of the first stem portion and extending in a second direction different from the first direction, and a third stem portion connected to the other side of the first stem portion and extending in the second direction; a first data line extending in the second direction and overlapping the second stem portion of the first pixel electrode; and a second data line extending in the second direction and overlapping the third stem portion of the first pixel electrode. The second stem portion includes a first sub-stem portion and a second sub-stem portion having different widths, and the third stem portion includes a third sub-stem portion and a fourth sub-stem portion having different widths.Type: GrantFiled: October 29, 2018Date of Patent: June 15, 2021Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Jung Suk Bang, Min Jeong Oh, Bo Ram Lee, Young Je Cho
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Patent number: 10989959Abstract: A backlight unit includes a first substrate, a plurality of LED chips on one surface of the first substrate and configured to emit light of a first color, a second substrate located opposite to the one surface of the first substrate, and a plurality of light modulation patterns on one surface of the second substrate facing the one surface of the first substrate so as to overlap the plurality of LED chips, respectively. Each of the plurality of light modulation patterns includes a first wavelength conversion pattern that converts the light of the first color into light of a second color. The first wavelength conversion pattern includes a first wavelength conversion layer on the one surface of the second substrate, a first organic encapsulation layer on the first wavelength conversion layer, and a barrier structure covering the first wavelength conversion layer and the first organic encapsulation layer.Type: GrantFiled: March 11, 2020Date of Patent: April 27, 2021Assignee: Samsung Display Co., Ltd.Inventors: Kwang Soo Bae, Beom Soo Park, Min Jeong Oh, Young Je Cho
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Publication number: 20210103172Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: December 17, 2020Publication date: April 8, 2021Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Publication number: 20210104651Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.Type: ApplicationFiled: August 14, 2020Publication date: April 8, 2021Applicant: Samsung Display Co., LTD.Inventors: Kwang Soo Bae, Dong Uk Kim, Beom Soo Park, Min Jeong Oh, Young Je Cho
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Publication number: 20210091272Abstract: A display device may include: a substrate; first and second electrode on the substrate; light emitting element between the first and second electrodes; a barrier structure on the substrate and including a first surface, a second surface, and a third surface; a light conversion layer on the barrier structure; and a passivation layer on the light conversion layer. A first space defined by the second and third surfaces may be between the substrate and the barrier structure. A second space defined by the first and second surfaces may be between the barrier structure and the passivation layer. The first and second spaces may be alternately located in the first direction. The light emitting element may be in the first space. The light conversion layer may be in the at least one second space.Type: ApplicationFiled: April 23, 2020Publication date: March 25, 2021Inventors: Kwang Soo BAE, Beom Soo PARK, Min Jeong OH, Young Je CHO