Patents by Inventor Young Mo Koo
Young Mo Koo 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: 20230255048Abstract: A display device includes a substrate on which pixels are defined, a pixel electrode disposed for each of the pixels on the substrate, a pixel defining layer disposed along a boundary of the pixels, the pixel defining layer including an opening exposing the pixel electrode, a light emitting layer disposed on the pixel electrode in the opening of the pixel defining layer, and a hole injection layer disposed between the pixel electrode and the light emitting layer. The hole injection layer includes an adhesion promoting layer disposed on the pixel electrode.Type: ApplicationFiled: April 20, 2023Publication date: August 10, 2023Applicant: Samsung Display Co., LTD.Inventors: Seung Mook LEE, Chang Hee LEE, Yool Guk KIM, Young Mo KOO, Jae Kook HA
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Publication number: 20230110744Abstract: A display device includes an auxiliary electrode disposed on a substrate, a bank layer disposed on the auxiliary electrode, a conductive layer disposed on the auxiliary electrode, the conductive layer including a base portion and protrusions protruded from the base portion, an organic layer disposed on the conductive layer, and a cathode electrode disposed on the organic layer, the cathode electrode being in contact with the protrusions.Type: ApplicationFiled: May 17, 2022Publication date: April 13, 2023Applicant: Samsung Display Co., LTD.Inventors: Ji Yoon KIM, Chang Hee LEE, Dong Hoon KWAK, Young Mo KOO
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Publication number: 20230006112Abstract: A color changing substrate comprises a substrate comprising emission areas and non-emission areas, a color filter layer on the substrate and comprising a light blocking member partitioning the emission areas and the non-emission areas, and a plurality of color filters in areas surrounded by the light blocking member, a bank overlapping the light blocking member, a wavelength control layer comprising wavelength conversion layers and a light transmitting layer in areas surrounded by the bank, a reflective layer overlapping the bank, a first metal oxide layer overlapping the reflective layer, and a self-assembled layer overlapping the first metal oxide layer.Type: ApplicationFiled: March 23, 2022Publication date: January 5, 2023Inventors: Ji Yoon KIM, Chang Hee LEE, Se Hun KIM, Young Mo KOO, Jae Kook HA
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Publication number: 20210280813Abstract: A display device includes a substrate on which pixels are defined, a pixel electrode disposed for each of the pixels on the substrate, a pixel defining layer disposed along a boundary of the pixels, the pixel defining layer including an opening exposing the pixel electrode, a light emitting layer disposed on the pixel electrode in the opening of the pixel defining layer, and a hole injection layer disposed between the pixel electrode and the light emitting layer. The hole injection layer includes an adhesion promoting layer disposed on the pixel electrode.Type: ApplicationFiled: September 28, 2020Publication date: September 9, 2021Applicant: Samsung Display Co., LTD.Inventors: Seung Mook LEE, Chang Hee LEE, Yool Guk KIM, Young Mo KOO, Jae Kook HA
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Patent number: 10573836Abstract: An organic light-emitting device having a resonance structure includes a substrate; a first electrode and a second electrode on the substrate and facing each other; an emission layer between the first electrode and the second electrode; a first hole transport layer between the first electrode and the emission layer; and a second hole transport layer between the first hole transport layer and the emission layer. An electron mobility of the second hole transport layer is 5 times to 100 times greater than an electron mobility of the first hole transport layer, and a thickness of the second hole transport layer corresponds to a resonance distance of a wavelength of emission light of the emission layer.Type: GrantFiled: January 8, 2018Date of Patent: February 25, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jae-Goo Lee, Young-Mo Koo, Min-Woo Lee, Woo-Sik Jeon
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Publication number: 20180159061Abstract: An organic light-emitting device having a resonance structure includes a substrate; a first electrode and a second electrode on the substrate and facing each other; an emission layer between the first electrode and the second electrode; a first hole transport layer between the first electrode and the emission layer; and a second hole transport layer between the first hole transport layer and the emission layer. An electron mobility of the second hole transport layer is 5 times to 100 times greater than an electron mobility of the first hole transport layer, and a thickness of the second hole transport layer corresponds to a resonance distance of a wavelength of emission light of the emission layer.Type: ApplicationFiled: January 8, 2018Publication date: June 7, 2018Inventors: Jae-Goo Lee, Young-Mo Koo, Min-Woo Lee, Woo-Sik Jeon
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Patent number: 9865833Abstract: An organic light-emitting device having a resonance structure includes a substrate; a first electrode and a second electrode on the substrate and facing each other; an emission layer between the first electrode and the second electrode; a first hole transport layer between the first electrode and the emission layer; and a second hole transport layer between the first hole transport layer and the emission layer. An electron mobility of the second hole transport layer is 5 times to 100 times greater than an electron mobility of the first hole transport layer, and a thickness of the second hole transport layer corresponds to a resonance distance of a wavelength of emission light of the emission layer.Type: GrantFiled: April 9, 2014Date of Patent: January 9, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jae-Goo Lee, Young-Mo Koo, Min-Woo Lee, Woo-Sik Jeon
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Patent number: 9559332Abstract: An organic electroluminescence (EL) display panel includes a substrate, a thin film transistor on the substrate, an overcoat layer on the thin film transistor and containing an organic material, a first electrode on the overcoat layer, an organic light emitting layer on the first electrode, a second electrode on the organic light emitting layer, and a barrier layer between the overcoat layer and the first electrode and including a first region formed of a single layer and a second region formed of a multilayer.Type: GrantFiled: July 16, 2013Date of Patent: January 31, 2017Assignee: Samsung Display Co., Ltd.Inventors: Sung Soo Lee, Ok Keun Song, Young Mo Koo, Se II Kim
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Patent number: 9496317Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.Type: GrantFiled: June 3, 2014Date of Patent: November 15, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
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Patent number: 9478768Abstract: In an aspect, an organic light-emitting display apparatus including: a substrate; at least one color filter formed on the substrate; an overcoat layer covering the at least one color filter; a first passivation layer formed on the overcoat layer; a light scattering layer formed on the first passivation layer; a first electrode formed on the light scattering layer; a second electrode facing the first electrode; and an organic layer located between the first and second electrodes is provided.Type: GrantFiled: February 25, 2013Date of Patent: October 25, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min-Woo Lee, Young-Mo Koo, Jae-Goo Lee, Woo-Sik Jeon
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Patent number: 9444072Abstract: In an aspect, an organic light-emitting display apparatus including: a substrate; at least one color filter formed on the substrate; an overcoat layer covering the at least one color filter; a first passivation layer formed on the overcoat layer; a light scattering layer formed on the first passivation layer; a first electrode formed on the light scattering layer; a second electrode facing the first electrode; and an organic layer located between the first and second electrodes is provided.Type: GrantFiled: February 25, 2013Date of Patent: September 13, 2016Assignee: Samsung Display Co., Ltd.Inventors: Min-Woo Lee, Young-Mo Koo, Jae-Goo Lee, Woo-Sik Jeon
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Patent number: 9385170Abstract: A thin film transistor array panel according to an exemplary embodiment includes: a substrate; a thin film transistor positioned on the substrate; a first electrode connected to the thin film transistor; and a diffractive layer positioned between the substrate and the thin film transistor. The diffractive layer is positioned within a boundary line of semiconductors of the thin film transistor.Type: GrantFiled: October 25, 2013Date of Patent: July 5, 2016Assignee: Samsung Display Co., Ltd.Inventors: Woo-Sik Jeon, Young-Mo Koo, Min-Woo Lee, Jae-Goo Lee
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Patent number: 9368560Abstract: An organic light emitting display device includes a thin film transistor on a substrate, a first protection layer covering the thin film transistor, a conductive organic layer on the first protection layer and coupled to the thin film transistor, and an organic light emitting device on the conductive organic layer and coupled to the conductive organic layer.Type: GrantFiled: August 9, 2013Date of Patent: June 14, 2016Assignee: Samsung Display Co., Ltd.Inventors: Woosik Jeon, Young-Mo Koo, Min Woo Lee, Jaegoo Lee
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Patent number: 9263692Abstract: Provided is an organic light emitting diode which can easily control color coordinates and improve a device's life span characteristic by using an auxiliary dopant having a higher band gap energy than that of a host, and preferably, having an absolute value of the highest occupied molecular orbital energy level equal to or higher than that of the host, or an absolute value of the lowest unoccupied molecular orbital energy level equal to or lower than that of the host. The organic light emitting diode includes a first electrode, an emission layer disposed on the first electrode and including a host, an emitting dopant and an auxiliary dopant, and a second electrode disposed on the emission layer. Here, the auxiliary dopant has a higher band gap energy than the host. A method of fabricating the organic light emitting diode is provided.Type: GrantFiled: March 20, 2014Date of Patent: February 16, 2016Assignee: Samsung Display Co., Ltd.Inventors: Sung-Jin Choi, Ok-Keun Song, Hye-In Jeong, Young-Mo Koo, Min-Woo Lee
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Publication number: 20160005990Abstract: An organic light-emitting device comprises a first electrode, a second electrode, and an organic light-emitting layer disposed between the first electrode and the second electrode, and comprising at least a host material, a first dopant for emitting light of a first color and a second dopant for emitting light of a second color, which is different from the first color. The organic light-emitting layer is divided into a first region adjacent to the first electrode, a second region adjacent to the second electrode, and a third region between the first region and the second region. Only the second dopant is provided in at least one of the first region and the second region.Type: ApplicationFiled: December 29, 2014Publication date: January 7, 2016Inventors: Sung Soo Lee, Young Mo Koo, Ok Keun Song, Woo Sik Jeon
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Patent number: 9167657Abstract: An organic light emitting device includes a first electrode formed over a substrate; an intermediate layer that is formed over the first electrode and includes an organic light emitting layer; a second electrode that includes a central electrode unit disposed in a central region and a peripheral electrode unit disposed in a peripheral region, the intermediate layer being disposed between the first and second electrodes; and a power unit configured to apply voltages to the first electrode and the second electrode. The power unit is configured to apply different voltages to the first electrode, the central electrode unit, and the peripheral electrode unit.Type: GrantFiled: April 11, 2012Date of Patent: October 20, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Hoon Yim, Ok-Keun Song, Young-Mo Koo
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Patent number: 9076978Abstract: An organic light emitting diode device includes a first electrode and a second electrode facing each other, a charge-generating layer interposed between the first electrode and the second electrode, a first light emitting unit that emits blue and is interposed between the first electrode and the charge-generating layer, and a second light emitting unit that emits white by combining the blue and is interposed between the second electrode and the charge-generating layer. The first light emitting unit includes a blue emission layer, a first charge transport layer disposed on one side of the blue emission layer and including an alkali metal complex compound and a first charge transport material, and a second charge transport layer disposed on one side of the first charge transport layer and including the alkali metal complex compound and a second charge transport material that has different charge mobility from the first charge transport material.Type: GrantFiled: September 30, 2013Date of Patent: July 7, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min-Woo Lee, Young-Mo Koo, Jae-Goo Lee, Woo-Sik Jeon
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Publication number: 20150179710Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.Type: ApplicationFiled: June 3, 2014Publication date: June 25, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
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Publication number: 20150115231Abstract: An organic light-emitting device having a resonance structure includes a substrate; a first electrode and a second electrode on the substrate and facing each other; an emission layer between the first electrode and the second electrode; a first hole transport layer between the first electrode and the emission layer; and a second hole transport layer between the first hole transport layer and the emission layer. An electron mobility of the second hole transport layer is 5 times to 100 times greater than an electron mobility of the first hole transport layer, and a thickness of the second hole transport layer corresponds to a resonance distance of a wavelength of emission light of the emission layer.Type: ApplicationFiled: April 9, 2014Publication date: April 30, 2015Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Goo Lee, Young-Mo Koo, Min-Woo Lee, Woo-Sik Jeon
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Patent number: 9006772Abstract: An organic light emitting diode (OLED) lighting apparatus includes a light emitting panel including an organic light emitting diode, a housing for housing the light emitting panel, a cover coupled to the housing and covering a front-side edge of the light emitting panel, a plurality of pins disposed between the housing and the light emitting panel and supporting an edge of the light emitting panel, and at least one contact bar disposed between the plurality of pins and a back-side edge of the light emitting panel.Type: GrantFiled: March 26, 2012Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jae-Goo Lee, Doo-Hwan Kim, Min-Woo Lee, Sung-Jin Choi, Young-Mo Koo