Patents by Inventor Kunwook CHO
Kunwook 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: 20240130222Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode on the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a first host and a second host which are different from each other, a first dopant including an organic metal complex containing Ir, Ru, Rh, Pt, Pd, Cu, or Os as a central metal atom, and a second dopant represented by Formula D-2 below, and thereby the organic electroluminescence device may exhibit high luminous efficiency and long service life characteristics.Type: ApplicationFiled: December 4, 2023Publication date: April 18, 2024Inventors: Hyejin JUNG, Minje KIM, EUNG DO KIM, Hyunyoung KIM, Hyojeong KIM, HYOSUP SHIN, SEOKGYU YOON, Youngki LEE, JUNGSUB LEE, Jiyoung LEE, Kunwook CHO, HYEON GU CHO, Minsoo CHOI, Youngeun CHOI, HYEIN JEONG
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Publication number: 20240107783Abstract: An electronic device may include: a base layer; and a display element layer including a pixel defining film having an opening defined therein, and a light emitting element and a light receiving element which are divided by the pixel defining film, wherein the light emitting element and the light receiving element each include: a first electrode, a hole transport region on the first electrode, an electron transport region including a hole blocking layer, and a second electrode. The light emitting element includes an emission layer between the hole transport region and the electron transport region, and the light receiving element includes a light receiving layer between the hole transport region and the electron transport region, and an electron extraction layer between the light receiving layer and the electron transport region and including an n-dopant material.Type: ApplicationFiled: July 28, 2023Publication date: March 28, 2024Inventors: KUNWOOK CHO, SOUNG WOOK KIM, MINSOO CHOI, SEOKGYU YOON, JIN-SOO JUNG, HYEJIN JUNG
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Patent number: 11793065Abstract: An organic light-emitting device and an apparatus including the same are disclosed. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound is represented by Formula 1, the second compound is represented by Formula 2A or Formula 2B, the third compound is represented by Formula 3, the fourth compound is represented by any one of Formulae 4-1 to 4-3, each as respectively described in the detailed description.Type: GrantFiled: May 1, 2020Date of Patent: October 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyunyoung Kim, Youngeun Choi, Minje Kim, Eungdo Kim, Hyojeong Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Jungsub Lee, Jiyoung Lee, Hyejin Jung, Kunwook Cho, Hyeongu Cho, Minsoo Choi, Jaejin Lyu
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Publication number: 20230270002Abstract: Provided are a light-emitting device and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode. The interlayer includes an emission layer, and a hole transport region between the first electrode and the emission layer. The first electrode includes a metal oxide having an absolute value of work function of 5.3 eV or more, the hole transport region includes a first hole transport layer including a first compound represented by Formula 1 and a second hole transport layer including a second compound represented by Formula 2, and the first compound and the second compound are different from each other: Formulae 1 and 2 are the same as described in the specification.Type: ApplicationFiled: February 6, 2023Publication date: August 24, 2023Applicant: Samsung Display Co., Ltd.Inventors: Jaeyong Lee, Kyungsik Kim, Yeongrong Park, Hyeonmi Lee, Kunwook Cho
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Publication number: 20230200097Abstract: Provided are an organic photodetector and an electronic apparatus including the same. The organic photodetector includes a first electrode, a second electrode facing the first electrode, an auxiliary layer arranged between the first electrode and the second electrode, and an activation layer arranged between the first electrode and the activation layer. The auxiliary layer includes a compound having a refractive index of about 2.2 or more.Type: ApplicationFiled: December 16, 2022Publication date: June 22, 2023Applicant: Samsung Display Co., Ltd.Inventors: Youngeun CHOI, Dongkyu SEO, Junyong SHIN, Seokgyu YOON, Daeho LEE, Byungseok LEE, Jaeyong LEE, Jinsoo JUNG, Kunwook CHO, Minsoo CHOI
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Publication number: 20230189644Abstract: An organic light-emitting device and an apparatus including the same are disclosed. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound is represented by Formula 1, the second compound is represented by Formula 2, the third compound is represented by Formula 3, the fourth compound is represented by any one of Formulae 4-1 to 4-3, each as respectively described in the detailed description.Type: ApplicationFiled: February 3, 2023Publication date: June 15, 2023Inventors: Hyunyoung Kim, Minje Kim, Eungdo Kim, Hyojeong Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Jungsub Lee, Jiyoung Lee, Hyejin Jung, Kunwook Cho, Hyeongu Cho, Minsoo Choi, Youngeun Choi, Hyein Jeong
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Publication number: 20230119261Abstract: An organic light-emitting device having improved efficiency and lifespan includes: a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound includes a metal element having an atomic number of 40 or more, the fourth compound includes boron (B), the third compound and the fourth compound each satisfy Conditions 1-1 and 1-2 below, and the fourth compound satisfies Condition 2 or 3: T1(C3)onset?S1(C4)onset??Condition 1-1 T1(C3)max?S1(C4)max??Condition 1-2 KRISC(C4)?103 S?1??Condition 2 f(C4)?0.1.Type: ApplicationFiled: December 12, 2022Publication date: April 20, 2023Inventors: Hyojeong KIM, Minje KIM, Eungdo KIM, Hyunyoung KIM, Hyosup SHIN, Seokgyu YOON, Youngki LEE, Jungsub LEE, Jiyoung LEE, Hyejin JUNG, Kunwook CHO, Hyeongu CHO, Minsoo CHOI, Youngeun CHOI, Jaejin LYU
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Publication number: 20230114654Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer located between the first electrode and the second electrode and including an emission layer, wherein the first electrode includes an inorganic material, the inorganic material includes a metal oxide having, as a main component, at least one metal selected from W, Mo, Ga, Ni, Cu, Zn, and Ti, the interlayer further includes a hole transport region located between the first electrode and the emission layer, the hole transport region includes a hole transport layer, and the hole transport layer includes at least one condensed cyclic compound represented by Formula 1:Type: ApplicationFiled: August 3, 2022Publication date: April 13, 2023Inventors: Kunwook CHO, Kyungsik KIM, Yeongrong PARK, Jaeyong LEE, Hyeonmi LEE
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Publication number: 20230084176Abstract: A light-emitting device and an electronic apparatus including the light-emitting device, in which the light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer arranged between the first electrode and the second electrode and including an emission layer, wherein the interlayer further includes a hole transport region between the first electrode and the emission layer, the first electrode includes a metal oxide having a work function of 5.3 eV or more, and the hole transport region includes a heterocyclic compound represented by Formula 1: wherein the detailed description of Formula 1 is the same as described in the present specification.Type: ApplicationFiled: July 6, 2022Publication date: March 16, 2023Inventors: Yeongrong PARK, Kyungsik KIM, Seokgyu YOON, Jaeyong LEE, Hyeonmi LEE, Kunwook CHO
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Patent number: 11605786Abstract: An organic light-emitting device and an apparatus including the same are disclosed. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound is represented by Formula 1, the second compound is represented by Formula 2, the third compound is represented by Formula 3, the fourth compound is represented by any one of Formulae 4-1 to 4-3, each as respectively described in the detailed description.Type: GrantFiled: September 22, 2020Date of Patent: March 14, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyunyoung Kim, Minje Kim, Eungdo Kim, Hyojeong Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Jungsub Lee, Jiyoung Lee, Hyejin Jung, Kunwook Cho, Hyeongu Cho, Minsoo Choi, Youngeun Choi, Hyein Jeong
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Patent number: 11575092Abstract: An organic light-emitting device and an apparatus including the same are disclosed. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound is represented by Formula 1, the second compound is represented by Formula 2A or Formula 2B, the third compound is represented by Formula 3, the fourth compound is represented by Formula 4, each as respectively described in the detailed description.Type: GrantFiled: July 8, 2020Date of Patent: February 7, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyunyoung Kim, Minje Kim, Eungdo Kim, Hyojeong Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Jungsub Lee, Jiyoung Lee, Hyejin Jung, Kunwook Cho, Hyeongu Cho, Minsoo Choi, Youngeun Choi, Jaejin Lyu
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Patent number: 11527725Abstract: An organic light-emitting device having improved efficiency and lifespan includes: a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode, wherein the organic layer includes an emission layer, the emission layer includes a first compound, a second compound, a third compound, and a fourth compound, the first compound, the second compound, the third compound, and the fourth compound are different from each other, the third compound includes a metal element having an atomic number of 40 or more, the fourth compound includes boron (B), the third compound and the fourth compound each satisfy Conditions 1-1 and 1-2 below, and the fourth compound satisfies Condition 2 or 3: T1(C3)onset?S1(C4)onset??Condition 1-1 T1(C3)max?S1(C4)max??Condition 1-2 KRISC(C4)?103S?1??Condition 2 f(C4)?0.1.Type: GrantFiled: April 27, 2020Date of Patent: December 13, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyojeong Kim, Minje Kim, Eungdo Kim, Hyunyoung Kim, Hyosup Shin, Seokgyu Yoon, Youngki Lee, Jungsub Lee, Jiyoung Lee, Hyejin Jung, Kunwook Cho, Hyeongu Cho, Minsoo Choi, Youngeun Choi, Jaejin Lyu
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Publication number: 20220376184Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the first electrode includes a metal oxide having a work function value of about ?5.3 eV or less, and the interlayer includes a layer including a compound of Formula 1: wherein, in Formula 1, the variables are described herein.Type: ApplicationFiled: December 3, 2021Publication date: November 24, 2022Inventors: Hyeonmi LEE, Jaeyong LEE, Kyungsik KIM, Yeongrong PARK, Kunwook CHO
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Patent number: 11462703Abstract: An organic light-emitting device and an apparatus including the organic light-emitting device.Type: GrantFiled: December 9, 2019Date of Patent: October 4, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jungsub Lee, Minje Kim, Hyojeong Kim, Jiyoung Lee, Kunwook Cho
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Publication number: 20220255011Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a hole injection layer and a hole transport layer, sequentially arranged between the first electrode and the emission layer, the first electrode includes aluminum, an alloy including aluminum, or any combination thereof, the hole injection layer consists of a first inorganic material as described herein, and an absolute value of a work function of the first inorganic material is greater than or equal to an absolute value of a HOMO energy level of the hole transport layer, and the hole transport region excludes a p-dopant.Type: ApplicationFiled: December 7, 2021Publication date: August 11, 2022Inventors: Jaeyong LEE, Seokgyu YOON, Jungmin KANG, Kyungsik KIM, Hyeongpil KIM, Jaejin LYU, Kunwook CHO
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Publication number: 20220246877Abstract: A light-emitting device includes: a first electrode; an interlayer including a hole transport layer, an emission layer; and an electron transport region; and a second electrode stacked in order, wherein the first electrode and the hole transport layer are in direct contact, the first electrode has a multi-layered structure in which a first layer to an mth layer (m is an integer 3) are sequentially stacked, the mth layer consists of a first inorganic material including: a single material selected from GeO2, MoO3, and WOx (2.1?x?2.99); a mixed material of two or more selected from In2O3, GeO2, SnO2, MoO3, and WOx; or any combination thereof, the absolute value of the work function of the first inorganic material is greater than or equal to the absolute value of the HOMO energy level of the hole transport layer, and the hole transport layer does not include a p-dopant.Type: ApplicationFiled: September 13, 2021Publication date: August 4, 2022Inventors: Seokgyu Yoon, Kyungsik Kim, Soungwook Kim, Jaeyong Lee, Kunwook Cho, Hyeongpil Kim, Jaejin Lyu
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Publication number: 20220231253Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer located between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes a hole transport region located between the first electrode and the emission layer, the hole transport region includes a hole injection layer, the first electrode includes a conductive oxide and a first inorganic material, and the hole injection layer includes a second inorganic material. An electronic apparatus includes the light-emitting device.Type: ApplicationFiled: October 20, 2021Publication date: July 21, 2022Inventors: Hyeongpil Kim, Jungmin Kang, Kyungsik Kim, Seokgyu Yoon, Jaeyong Lee, Kunwook Cho
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Publication number: 20220123250Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, the interlayer including an emission layer. The first electrode may be doped with a metal oxide having a work function of less than about ?5.05 electron volts (eV), and a layer including a halide of a lanthanide may be between the first electrode and the emission layer. An electronic apparatus including the light-emitting device is also provided.Type: ApplicationFiled: May 4, 2021Publication date: April 21, 2022Applicant: Samsung Display Co., Ltd.Inventors: Hyeongpil KIM, Jungmin KANG, Kyungsik KIM, Seokgyu YOON, Jaeyong LEE, Kunwook CHO
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Publication number: 20220020950Abstract: A light-emitting device including: first and second electrodes facing each other; an emission layer located therebetween; and a charge transport region located between the emission layer and the first electrode. Light emitted from the emission layer passes to the outside through the second electrode, the first electrode is a reflective electrode, the first electrode includes a transparent layer and a reflective layer, a distance between i) an interface between the transparent layer of the first electrode and the charge transport region and ii) an interface between the emission layer and the charge transport region is a first resonance distance of light emitted from the emission layer, and a distance between a) an interface between the reflective layer of the first electrode and the transparent layer of the first electrode and b) an interface between the emission layer and the charge transport region is a second resonance distance of light emitted from the emission layer.Type: ApplicationFiled: June 29, 2021Publication date: January 20, 2022Inventors: Soungwook KIM, Seokgyu Yoon, Kyungsik Kim, Eungdo Kim, Jaejin Lyu, Kunwook Cho, Hyeongu Cho
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Publication number: 20210119168Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode, and an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a host having a first luminescent onset wavelength, a first dopant having a second luminescent onset wavelength, and a second dopant different from the first dopant and having a third luminescent onset wavelength. The third luminescent onset wavelength is greater than each of the first luminescent onset wavelength and the second luminescent onset wavelength, and the device has improved emission efficiency and/or long-lifespan characteristics.Type: ApplicationFiled: December 22, 2020Publication date: April 22, 2021Inventors: MINSOO CHOI, MINJE KIM, EUNG DO KIM, HYUNYOUNG KIM, HYOJEONG KIM, HYOSUP SHIN, SEOKGYU YOON, YOUNGKI LEE, JUNGSUB LEE, JIYOUNG LEE, HYEJIN JUNG, KUNWOOK CHO, HYEON GU CHO, YOUNGEUN CHOI, JAEJIN LYU