Patents by Inventor Soyeon AHN
Soyeon AHN 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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Patent number: 11257880Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: GrantFiled: September 25, 2019Date of Patent: February 22, 2022Assignee: LG DISPLAY CO, LTD.Inventors: SeungRyong Joung, ChangWook Han, KangJu Lee, Hongseok Choi, Hansun Park, SoYeon Ahn, Seongsu Jeon, Wonhoe Koo, JeaHo Park
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Patent number: 10950812Abstract: Discussed is an organic light emitting display device. The organic light emitting display device can include a first emission part, a second emission part on the first emission part, and a first P-type charge generation layer between the first emission part and the second emission part. The first emission part includes a first hole transport layer, a first emission layer, and a first electron transport layer. The second emission part includes a second hole transport layer, a second emission layer, and a second electron transport layer. The second hole transport layer and the first P-type charge generation layer are disposed adjacent to each other. The second hole transport layer includes a first material and a second material. The first material has an absolute value of a HOMO energy level which can be greater than an absolute value of a LUMO energy level of the first P-type charge generation layer.Type: GrantFiled: June 24, 2016Date of Patent: March 16, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Yoondeok Han, JaeMan Lee, SoYeon Ahn, Heedong Choi, JungSoo Park
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Publication number: 20200020755Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Inventors: SeungRyong JOUNG, ChangWook HAN, KangJu LEE, Hongseok CHOI, Hansun PARK, SoYeon AHN, Seongsu JEON, Wonhoe KOO, JeaHo PARK
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Patent number: 10468468Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: GrantFiled: May 2, 2018Date of Patent: November 5, 2019Assignee: LG DISPLAY CO., LTD.Inventors: SeungRyong Joung, ChangWook Han, KangJu Lee, Hongseok Choi, Hansun Park, SoYeon Ahn, Seongsu Jeon, Wonhoe Koo, JeaHo Park
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Patent number: 10115924Abstract: An OLED apparatus that may include a reflection-anode, a transparent-cathode, and a plurality of stacks between the reflection-anode and the transparent-cathode, wherein, among the plurality of stacks, a thickness of the stack disposed relatively close to the transparent-cathode is larger than a thickness of the stack disposed relatively close to the reflection-anode so that it is possible to optimize a micro-cavity of light emitted from the plurality of stacks, thereby improving a light-emission efficiency and a color reproduction ratio and reducing a color change rate in accordance with a viewing angle.Type: GrantFiled: July 27, 2016Date of Patent: October 30, 2018Assignee: LG Display Co., Ltd.Inventors: Taell Kum, Ki-Woog Song, SoYeon Ahn, Yongjoong Choi, Mingyu Lee
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Publication number: 20180254307Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: ApplicationFiled: May 2, 2018Publication date: September 6, 2018Inventors: SeungRyong JOUNG, ChangWook HAN, KangJu LEE, Hongseok CHOI, Hansun PARK, SoYeon AHN, Seongsu JEON, Wonhoe KOO, JeaHo PARK
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Patent number: 10056571Abstract: An organic light emitting display device includes: a first light emitting unit including a first light emitting layer; and a second light emitting unit on the first light emitting unit including a second light emitting layer. The first light emitting layer includes at least one dopant and at least two hosts. The at least two hosts are different from each other in electron mobility and hole mobility.Type: GrantFiled: May 24, 2016Date of Patent: August 21, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Yoondeok Han, Hongseok Choi, SoYeon Ahn, JungSoo Park, Yosub Lee
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Patent number: 10020349Abstract: Provided is an organic light emitting device. The organic light emitting device includes a plurality of light emitting units laminated between a first electrode and a second electrode and each including an organic emitting layer, and a charge generation layer between the light emitting units. Further, the charge generation layer includes an N-type charge generation layer disposed to be in direct contact with an organic emitting layer of the adjacent light emitting unit and HOMO levels of the N-type charge generation layer and the organic emitting layer are regulated. Thus, a color change rate based on a viewing angle can be improved, and efficiency and a lifetime of the organic light emitting device can be improved.Type: GrantFiled: May 17, 2016Date of Patent: July 10, 2018Assignee: LG Display Co., Ltd.Inventors: JeongHaeng Heo, Jaeil Song, SangGun Lee, SoYeon Ahn
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Patent number: 9991320Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: GrantFiled: September 23, 2016Date of Patent: June 5, 2018Assignee: LG DISPLAY CO., LTD.Inventors: SeungRyong Joung, ChangWook Han, KangJu Lee, Hongseok Choi, Hansun Park, SoYeon Ahn, Seongsu Jeon, Wonhoe Koo, JeaHo Park
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Patent number: 9978970Abstract: An organic light emitting device including an organic light emitting element having a low driving voltage and a high luminous efficiency is provided. The organic light emitting device includes two or more stack emission units, and a charge generating layer including an N-type charge generating layer and a P-type charge generating layer is disposed between the stack emission units. Herein, the P-type charge generating layer is formed of a material having an LUMO energy level similar to an HOMO energy level of a hole transporting layer injected with holes from the P-type charge generating layer. Accordingly, even if the P-type charge generating layer is not additionally doped with a P-type dopant, it is possible to readily inject holes into a stack emission unit adjacent to the P-type charge generating layer.Type: GrantFiled: June 28, 2016Date of Patent: May 22, 2018Assignee: LG Display Co., Ltd.Inventors: JaeMan Lee, Taesun Yoo, Mi-Young Han, SoYeon Ahn, Heedong Choi, JungSoo Park, Yoondeok Han
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Patent number: 9806276Abstract: Disclosed is an organic light emitting display (OLED) apparatus with improved efficiency and lifespan, wherein the OLED apparatus includes an anode, a cathode, and a light-emitting unit disposed in-between, wherein the light-emitting unit includes a first emission layer, and a first hole transporting layer having first and second materials, wherein the first material has a higher hole mobility than that of the second material so as to improve a transfer of holes from the first hole transporting layer to the first emission layer, and the second material has a higher triplet energy level than that of the first material so as to reduce a transfer of electrons from the first emission layer to the first hole transporting layer.Type: GrantFiled: June 22, 2016Date of Patent: October 31, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Younseok Kam, Chang Wook Han, Hongseok Choi, SoYeon Ahn, Taeshick Kim, Mingyu Lee
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Patent number: 9680119Abstract: Disclosed is a white organic light emitting display device comprising first and second electrodes, and a first emitting part between the first and second electrodes, the first emitting part including a red emitting layer and a blue emitting layer adjacent to the red emitting layer, wherein the red emitting layer includes a first host material which does not absorb a blue light emitted from the blue emitting layer, and an organic light emitting display apparatus using the same.Type: GrantFiled: September 8, 2015Date of Patent: June 13, 2017Assignee: LG Display Co., Ltd.Inventors: Jung Soo Park, Hong Seok Choi, Seung Ryong Joung, SoYeon Ahn, Min Gyu Lee
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Publication number: 20170155070Abstract: An organic light emitting display device includes: a first light emitting unit including a first light emitting layer; and a second light emitting unit on the first light emitting unit including a second light emitting layer. The first light emitting layer includes at least one dopant and at least two hosts. The at least two hosts are different from each other in electron mobility and hole mobility.Type: ApplicationFiled: May 24, 2016Publication date: June 1, 2017Inventors: Yoondeok HAN, Hongseok CHOI, SoYeon AHN, JungSoo PARK, Yosub LEE
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Publication number: 20170155071Abstract: Discussed is an organic light emitting display device. The organic light emitting display device can include a first emission part, a second emission part on the first emission part, and a first P-type charge generation layer between the first emission part and the second emission part. The first emission part includes a first hole transport layer, a first emission layer, and a first electron transport layer. The second emission part includes a second hole transport layer, a second emission layer, and a second electron transport layer. The second hole transport layer and the first P-type charge generation layer are disposed adjacent to each other. The second hole transport layer includes a first material and a second material. The first material has an absolute value of a HOMO energy level which can be greater than an absolute value of a LUMO energy level of the first P-type charge generation layer.Type: ApplicationFiled: June 24, 2016Publication date: June 1, 2017Applicant: LG DISPLAY CO., LTD.Inventors: Yoondeok HAN, JaeMan LEE, SoYeon AHN, Heedong CHOI, JungSoo PARK
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Publication number: 20170092887Abstract: An organic light emitting device including an organic light emitting element having a low driving voltage and a high luminous efficiency is provided. The organic light emitting device includes two or more stack emission units, and a charge generating layer including an N-type charge generating layer and a P-type charge generating layer is disposed between the stack emission units. Herein, the P-type charge generating layer is formed of a material having an LUMO energy level similar to an HOMO energy level of a hole transporting layer injected with holes from the P-type charge generating layer. Accordingly, even if the P-type charge generating layer is not additionally doped with a P-type dopant, it is possible to readily inject holes into a stack emission unit adjacent to the P-type charge generating layer.Type: ApplicationFiled: June 28, 2016Publication date: March 30, 2017Applicant: LG Display Co., Ltd.Inventors: JaeMan LEE, Taesun YOO, Mi-Young HAN, SoYeon AHN, Heedong CHOI, JungSoo PARK, Yoondeok HAN
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Publication number: 20170084875Abstract: There is provided an organic light emitting diode display device. The organic light emitting diode display device includes a substrate divided into an emission area and a non-emission area, an overcoating layer disposed on the substrate and including a plurality of micro lenses, a plurality of first electrode patterns disposed on the overcoating layer and spaced away from each other in the emission area, an organic emission layer disposed on the plurality of first electrodes, and a second electrode disposed on the organic emission layer.Type: ApplicationFiled: September 23, 2016Publication date: March 23, 2017Inventors: SeungRyong JOUNG, ChangWook HAN, KangJu LEE, Hongseok CHOI, Hansun PARK, SoYeon AHN, Seongsu JEON, Wonhoe KOO, JeaHo PARK
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Publication number: 20170084855Abstract: Disclosed is an organic light emitting display (OLED) apparatus with improved efficiency and lifespan, wherein the OLED apparatus includes an anode, a cathode, and a light-emitting unit disposed in-between, wherein the light-emitting unit includes a first emission layer, and a first hole transporting layer having first and second materials, wherein the first material has a higher hole mobility than that of the second material so as to improve a transfer of holes from the first hole transporting layer to the first emission layer, and the second material has a higher triplet energy level than that of the first material so as to reduce a transfer of electrons from the first emission layer to the first hole transporting layer.Type: ApplicationFiled: June 22, 2016Publication date: March 23, 2017Inventors: Younseok KAM, Chang Wook HAN, Hongseok CHOI, SoYeon AHN, Taeshick KIM, Mingyu LEE
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Publication number: 20170084856Abstract: An OLED apparatus that may include a reflection-anode, a transparent-cathode, and a plurality of stacks between the reflection-anode and the transparent-cathode, wherein, among the plurality of stacks, a thickness of the stack disposed relatively close to the transparent-cathode is larger than a thickness of the stack disposed relatively close to the reflection-anode so that it is possible to optimize a micro-cavity of light emitted from the plurality of stacks, thereby improving a light-emission efficiency and a color reproduction ratio and reducing a color change rate in accordance with a viewing angle.Type: ApplicationFiled: July 27, 2016Publication date: March 23, 2017Inventors: TaeIl KUM, Ki-Woog SONG, SoYeon AHN, Yongjoong CHOI, Mingyu LEE
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Publication number: 20160343776Abstract: Provided is an organic light emitting device. The organic light emitting device includes a plurality of light emitting units laminated between a first electrode and a second electrode and each including an organic emitting layer, and a charge generation layer between the light emitting units. Further, the charge generation layer includes an N-type charge generation layer disposed to be in direct contact with an organic emitting layer of the adjacent light emitting unit and HOMO levels of the N-type charge generation layer and the organic emitting layer are regulated. Thus, a color change rate based on a viewing angle can be improved, and efficiency and a lifetime of the organic light emitting device can be improved.Type: ApplicationFiled: May 17, 2016Publication date: November 24, 2016Inventors: JeongHaeng HEO, Jaeil SONG, SangGun LEE, SoYeon AHN
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Publication number: 20160118612Abstract: Disclosed is a white organic light emitting display device comprising first and second electrodes, and a first emitting part between the first and second electrodes, the first emitting part including a red emitting layer and a blue emitting layer adjacent to the red emitting layer, wherein the red emitting layer includes a first host material which does not absorb a blue light emitted from the blue emitting layer, and an organic light emitting display apparatus using the same.Type: ApplicationFiled: September 8, 2015Publication date: April 28, 2016Inventors: Jung Soo Park, Hong Seok Choi, Seung Ryong Joung, SoYeon Ahn, Min Gyu Lee