Patents by Inventor Jin-Baek Choi
Jin-Baek Choi 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: 20240423078Abstract: A display device includes a substrate with a display region and a non-display region. The display region includes first pixels, second pixels, and third pixels. Each of the first to third pixels have emission regions from which light is to be emitted, a light emitting element in the emission region, and a pixel circuit area to drive the light emitting element. A dummy pattern extends through a non-emission region of the substrate located in the display region between adjacent pixels. A thin film encapsulation layer covers the dummy pattern and each of the emission regions.Type: ApplicationFiled: August 26, 2024Publication date: December 19, 2024Applicant: Samsung Display Co., Ltd.Inventor: Jin Baek CHOI
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Patent number: 12075685Abstract: A display device includes a substrate with a display region and a non-display region. The display region includes first pixels, second pixels, and third pixels. Each of the first to third pixels have emission regions from which light is to be emitted, a light emitting element in the emission region, and a pixel circuit area to drive the light emitting element. A dummy pattern extends through a non-emission region of the substrate located in the display region between adjacent pixels. A thin film encapsulation layer covers the dummy pattern and each of the emission regions.Type: GrantFiled: January 5, 2021Date of Patent: August 27, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jin Baek Choi
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Publication number: 20210159285Abstract: A display device includes a substrate with a display region and a non-display region. The display region includes first pixels, second pixels, and third pixels. Each of the first to third pixels have emission regions from which light is to be emitted, a light emitting element in the emission region, and a pixel circuit area to drive the light emitting element. A dummy pattern extends through a non-emission region of the substrate located in the display region between adjacent pixels. A thin film encapsulation layer covers the dummy pattern and each of the emission regions.Type: ApplicationFiled: January 5, 2021Publication date: May 27, 2021Applicant: Samsung Display Co., Ltd.Inventor: Jin Baek CHOI
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Patent number: 10903283Abstract: A display device includes a substrate with a display region and a non-display region. First to third pixels are in the display region and have emission regions to emit light from corresponding light emitting elements. Pixel circuit areas in the first to third pixels drive the light emitting elements. A dummy pattern is in a non-emission region, except the emission region. The dummy pattern extends along the extending direction of one pixel among the first to third pixels. A thin film encapsulation layer covers the dummy pattern and the light emitting element.Type: GrantFiled: July 5, 2018Date of Patent: January 26, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jin Baek Choi
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Patent number: 10714559Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; a second electrode overlapping the first electrode; and an emission layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode includes a metal layer including a first material, an oxidation layer including a second material and disposed on two opposing surfaces of the metal layer, and a barrier layer disposed at a surface of the oxidation layer, and the second material has a smaller Gibbs free energy than that of the first material.Type: GrantFiled: January 12, 2017Date of Patent: July 14, 2020Assignee: Samsung Display Co., Ltd.Inventors: Joon Gu Lee, Yeon Hwa Lee, Se Hoon Jeong, Ji Young Choung, Man Ho Kim, Jae Ik Kim, Jin Baek Choi
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Publication number: 20190189706Abstract: A display device includes a substrate with a display region and a non-display region. First to third pixels are in the display region and have emission regions to emit light from corresponding light emitting elements. Pixel circuit areas in the first to third pixels drive the light emitting elements. A dummy pattern is in a non-emission region, except the emission region. The dummy pattern extends along the extending direction of one pixel among the first to third pixels. A thin film encapsulation layer covers the dummy pattern and the light emitting element.Type: ApplicationFiled: July 5, 2018Publication date: June 20, 2019Inventor: Jin Baek Choi
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Publication number: 20170207290Abstract: According to an exemplary embodiment of the present disclosure, an organic light emitting element includes: a first electrode; a second electrode overlapping the first electrode; and an emission layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode and the second electrode includes a metal layer including a first material, an oxidation layer including a second material and disposed on two opposing surfaces of the metal layer, and a barrier layer disposed at a surface of the oxidation layer, and the second material has a smaller Gibbs free energy than that of the first material.Type: ApplicationFiled: January 12, 2017Publication date: July 20, 2017Inventors: Joon Gu LEE, Yeon Hwa LEE, Se Hoon JEONG, Ji Young CHOUNG, Man Ho KIM, Jae Ik KIM, Jin Baek CHOI
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Patent number: 9620744Abstract: The optical patterning mask had a protection layer on a light absorption layer. It prevents the light absorption layer from damaged by the cleaning gas when processing the used optical patterning mask for reuse. The protection layer may be made of the same material as bank layer or of material different from the bank layer. The bank layer defines the boundary of the area to be transferred in the transfer layer. The protection layer of the present invention can maintain longer the transfer efficiency of the optical patterning mask, even when the same mask is used repeatedly after cleaning, since the light absorption layer protected from cleaning process can maintain longer its heat conversion property.Type: GrantFiled: April 6, 2015Date of Patent: April 11, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jin Baek Choi, Yeon Hwa Lee, Joon Gu Lee
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Patent number: 9614193Abstract: A method of manufacturing a display device is disclosed. In one aspect, a display device comprises a lower substrate, a light-emitting element formed on the lower substrate and comprising a plurality of pixels, an upper substrate disposed on the light-emitting element with a gap therebetween sealed with a sealant. In addition, the device includes a filler filling the gap between the light-emitting element and the upper substrate, and a light-absorbing material formed between the lower substrate and the upper substrate and selectively absorbing light of a certain wavelength range.Type: GrantFiled: August 14, 2015Date of Patent: April 4, 2017Assignee: Samsung Display Co., Ltd.Inventors: Won-Jong Kim, Joon-Gu Lee, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Young-Woo Song, Jong-Hyuk Lee
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Patent number: 9583709Abstract: A mask for forming an organic layer pattern, the mask including a photomask having a first substrate and a reflecting layer on the first substrate; and a donor substrate on the photomask and separated therefrom, the donor substrate including a second substrate and an absorption part on the second substrate, wherein the photomask comprises a reflecting part configured to reflect light incident to the photomask and a light concentrating part configured to concentrate the light and transmit the light to the donor substrate.Type: GrantFiled: November 4, 2014Date of Patent: February 28, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hyun Sung Bang, Jae Sik Kim, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Jin Baek Choi, Kyu Hwan Hwang, Young Woo Song
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Patent number: 9425426Abstract: In an aspect, an organic light emitting diode display including: a substrate; a first electrode and an auxiliary electrode positioned on the substrate and separated from each other; an absorption electrode positioned on the auxiliary electrode; an organic emission layer positioned on the first electrode and having a contact hole exposing the auxiliary electrode and the absorption electrode; and a second electrode positioned on the organic emission layer and connected to the auxiliary electrode and the absorption electrode through the contact hole is provided. In an aspect, the organic light emitting diode (OLED) display may minimize the voltage drop of the driving power passing through the large-sized electrode of the thin film for driving the organic emission layer, and may simplify the removal process of the organic emission layer on the auxiliary electrode by adding the absorption electrode on the auxiliary electrode.Type: GrantFiled: September 11, 2015Date of Patent: August 23, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jin Baek Choi, Hyun Sung Bang, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Young Woo Song
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Patent number: 9385347Abstract: An optical mask includes a light-to-heat conversion layer with an improved temperature profile. The optical masks may comprise a light-transmitting base substrate; a first reflective pattern layer which is formed on the light-transmitting base substrate comprising a first opening portion transmitting light emitted from under the light-transmitting base substrate and a first reflective portion reflecting the light; a second reflective pattern layer which is formed over the first opening portion comprising a second opening portion overlapping a first area of the first opening portion and a second reflective portion overlapping a second area of the first opening portion; and a light-to-heat conversion pattern layer which is formed on the light-transmitting base substrate, being disposed in the first area of the first opening portion, absorbing at least a part of the light, and converting the light absorbed into heat.Type: GrantFiled: March 25, 2015Date of Patent: July 5, 2016Assignee: Samsung Display Co., Ltd.Inventors: Joon Gu Lee, Yeon Hwa Lee, Jin Baek Choi, Young Gil Kwon
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Patent number: 9360748Abstract: An optical mask including a transmissive base substrate, a reflective pattern layer, and a photothermal conversion pattern layer. The reflective pattern layer is disposed on the transmissive base substrate. The reflective pattern layer includes reflectors. The photothermal conversion pattern layer is disposed on the transmissive base substrate among the reflectors. The photothermal conversion pattern layer includes first regions with a first light absorptivity and second regions with a second light absorptivity. The second light absorptivity is greater than the first light absorptivity. The first regions are disposed among the second regions.Type: GrantFiled: May 19, 2015Date of Patent: June 7, 2016Assignee: Samsung Display Co., Ltd.Inventors: Yeon Hwa Lee, Joon Gu Lee, Jin Baek Choi
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Publication number: 20160118630Abstract: The optical patterning mask had a protection layer on a light absorption layer. It prevents the light absorption layer from damaged by the cleaning gas when processing the used optical patterning mask for reuse. The protection layer may be made of the same material as bank layer or of material different from the bank layer. The bank layer defines the boundary of the area to be transferred in the transfer layer. The protection layer of the present invention can maintain longer the transfer efficiency of the optical patterning mask, even when the same mask is used repeatedly after cleaning, since the light absorption layer protected from cleaning process can maintain longer its heat conversion property.Type: ApplicationFiled: April 6, 2015Publication date: April 28, 2016Inventors: Jin Baek CHOI, Yeon Hwa Lee, Joon Gu Lee
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Publication number: 20160064698Abstract: An optical mask includes a light-to-heat conversion layer with an improved temperature profile. The optical masks may comprise a light-transmitting base substrate; a first reflective pattern layer which is formed on the light-transmitting base substrate comprising a first opening portion transmitting light emitted from under the light-transmitting base substrate and a first reflective portion reflecting the light; a second reflective pattern layer which is formed over the first opening portion comprising a second opening portion overlapping a first area of the first opening portion and a second reflective portion overlapping a second area of the first opening portion; and a light-to-heat conversion pattern layer which is formed on the light-transmitting base substrate, being disposed in the first area of the first opening portion, absorbing at least a part of the light, and converting the light absorbed into heat.Type: ApplicationFiled: March 25, 2015Publication date: March 3, 2016Inventors: Joon Gu LEE, Yeon Hwa LEE, Jin Baek CHOI, Young Gil KWON
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Publication number: 20160062228Abstract: An optical mask including a transmissive base substrate, a reflective pattern layer, and a photothermal conversion pattern layer. The reflective pattern layer is disposed on the transmissive base substrate. The reflective pattern layer includes reflectors. The photothermal conversion pattern layer is disposed on the transmissive base substrate among the reflectors. The photothermal conversion pattern layer includes first regions with a first light absorptivity and second regions with a second light absorptivity. The second light absorptivity is greater than the first light absorptivity. The first regions are disposed among the second regions.Type: ApplicationFiled: May 19, 2015Publication date: March 3, 2016Inventors: Yeon Hwa LEE, Joon Gu LEE, Jin Baek CHOI
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Patent number: 9231228Abstract: An anode for an organic light emitting device which introduces a metal oxide to improve flows of charges, and an organic light emitting device using the anode. The anode for the organic light emitting device has excellent charge injection characteristics, thereby improving power consumption of the organic light emitting device.Type: GrantFiled: November 18, 2011Date of Patent: January 5, 2016Assignee: Samsung Display Co., Ltd.Inventors: Won-Jong Kim, Joon-Gu Lee, Ji-Young Choung, Jin-Baek Choi, Yeon-Hwa Lee, Chang-Ho Lee, Il-Soo Oh, Hyung-Jun Song, Jin-Young Yun, Young-Woo Song, Jong-Hyuk Lee
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Publication number: 20150380676Abstract: In an aspect, an organic light emitting diode display including: a substrate; a first electrode and an auxiliary electrode positioned on the substrate and separated from each other; an absorption electrode positioned on the auxiliary electrode; an organic emission layer positioned on the first electrode and having a contact hole exposing the auxiliary electrode and the absorption electrode; and a second electrode positioned on the organic emission layer and connected to the auxiliary electrode and the absorption electrode through the contact hole is provided. In an aspect, the organic light emitting diode (OLED) display may minimize the voltage drop of the driving power passing through the large-sized electrode of the thin film for driving the organic emission layer, and may simplify the removal process of the organic emission layer on the auxiliary electrode by adding the absorption electrode on the auxiliary electrode.Type: ApplicationFiled: September 11, 2015Publication date: December 31, 2015Inventors: Jin Baek Choi, Hyun Sung Bang, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Young Woo Song
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Publication number: 20150349298Abstract: A method of manufacturing a display device is disclosed. In one aspect, a display device comprises a lower substrate, a light-emitting element formed on the lower substrate and comprising a plurality of pixels, an upper substrate disposed on the light-emitting element with a gap therebetween sealed with a sealant. In addition, the device includes a filler filling the gap between the light-emitting element and the upper substrate, and a light-absorbing material formed between the lower substrate and the upper substrate and selectively absorbing light of a certain wavelength range.Type: ApplicationFiled: August 14, 2015Publication date: December 3, 2015Inventors: Won-Jong KIM, Joon-Gu LEE, Ji-Young CHOUNG, Jin-Baek CHOI, Yeon-Hwa LEE, Young-Woo SONG, Jong-Hyuk LEE
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Patent number: 9159946Abstract: In an aspect, an organic light emitting diode display including: a substrate; a first electrode and an auxiliary electrode positioned on the substrate and separated from each other; an absorption electrode positioned on the auxiliary electrode; an organic emission layer positioned on the first electrode and having a contact hole exposing the auxiliary electrode and the absorption electrode; and a second electrode positioned on the organic emission layer and connected to the auxiliary electrode and the absorption electrode through the contact hole is provided. In an aspect, the organic light emitting diode (OLED) display may minimize the voltage drop of the driving power passing through the large-sized electrode of the thin film for driving the organic emission layer, and may simplify the removal process of the organic emission layer on the auxiliary electrode by adding the absorption electrode on the auxiliary electrode.Type: GrantFiled: March 11, 2014Date of Patent: October 13, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jin Baek Choi, Hyun Sung Bang, Yeon Hwa Lee, Joon Gu Lee, Ji Young Choung, Young Woo Song