Patents by Inventor Keun-Chan Oh
Keun-Chan Oh 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: 20240334775Abstract: A display device includes a first emission area, a second emission area disposed adjacent to the first emission area, and a non-emission area, a base member disposed in the first emission area, the second emission area, and the non-emission area, a light emitting element part disposed and including a first light emitting element disposed in the first emission area and a second light emitting element disposed in the second emission area, a wavelength conversion part disposed on the light emitting element part and including a first wavelength conversion pattern, a first insulating layer covering the first wavelength conversion pattern, opened at a portion disposed adjacent to the first emission area, exposing a portion of the first wavelength conversion pattern, and a light blocking member disposed in the non-emission area and covering the portion of the first wavelength conversion pattern. The wavelength conversion part is disposed in the second emission area.Type: ApplicationFiled: November 6, 2023Publication date: October 3, 2024Applicant: Samsung Display Co., LTD.Inventors: You Young JIN, Keun Chan OH, Jae Cheol PARK, Gak Seok LEE, Sun Kyu JOO
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Publication number: 20240244892Abstract: A display device includes multiple light emitting devices disposed on a substrate, each including a first electrode, an emission layer, and a second electrode, a pixel defining layer including multiple openings overlapping the first electrode in a plan view, an encapsulation layer covering the light emitting devices and including multiple first openings overlapping the pixel defining layer in a plan view, a bank disposed on the encapsulation layer, overlapping the first openings in a plan view, and including multiple second openings overlapping the light emitting devices in a plan view, a first color conversion layer, a second color conversion layer, and a transmission layer, each disposed inside the second openings, and a spacer disposed on the bank and including a colored material.Type: ApplicationFiled: November 17, 2023Publication date: July 18, 2024Applicant: Samsung Display Co., LTD.Inventors: Song Ee LEE, Sang Ji PARK, Cheol SHIN, Keun Chan OH, DOKYUNG YOUN, Sun-Kyu JOO, Woo-Man JI, You Young JIN, Tae Hyung HWANG
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Publication number: 20240154073Abstract: According to embodiments, a light-emitting display device includes a light-emitting diode that emits blue light and green light, a color conversion layer on the light-emitting diode, and a scattering absorption layer disposed between the color conversion layer and the light-emitting diode and that transmits blue light and green light.Type: ApplicationFiled: September 12, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Gak Seok LEE, Byung-Chul KIM, Jang Wi RYU, Jae Min SEONG, Keun Chan OH, Sang Hun LEE, HALIM JI
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Patent number: 11943987Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.Type: GrantFiled: June 11, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
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Patent number: 11930684Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.Type: GrantFiled: June 3, 2021Date of Patent: March 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Chang Soon Jang, Keun Chan Oh, Gak Seok Lee, Sang Hun Lee, So Yun Lee, Ji Eun Jang
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Publication number: 20230337501Abstract: A light emitting display device comprises a substrate, a first pixel electrode disposed on the substrate, a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode, a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film, and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.Type: ApplicationFiled: June 26, 2023Publication date: October 19, 2023Applicant: Samsung Display Co. Ltd.Inventors: Sun Kyu JOO, Byung Chul KIM, Sung Chul KIM, Su Jeong KIM, In Ok KIM, Hye Ran MUN, In Seok SONG, Keun Chan OH, Jae Jin LYU, Yui Ku LEE
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Publication number: 20230335686Abstract: A color conversion panel includes a plurality of banks which partition a first emission area, a second emission area and a third emission area of the color conversion panel at which light of different colors are respectively emitted, a color conversion layer which color-converts light, in the first emission area, and a transmission layer which transmits light without color conversion, in the second emission area and the third emission area.Type: ApplicationFiled: February 10, 2023Publication date: October 19, 2023Inventors: Sun-Kyu JOO, Keun Chan OH, Min-Jae KIM, Jae Cheol PARK, DOKYUNG YOUN, Yeo Geon YOON, Chang-Hun LEE, Woo-Man JI
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Publication number: 20230337476Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.Type: ApplicationFiled: June 21, 2023Publication date: October 19, 2023Applicant: Samsung Display Co., Ltd.Inventors: Sun-Kyu JOO, In Seok SONG, Keun Chan OH, Byung-Chul KIM, In Ok KIM, Gak Seok LEE, Chang-Soon JANG
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Publication number: 20230284512Abstract: A display device includes a first base portion in which a first emission area and a non-emission area are defined, a first light emitting element on the first base portion and overlapping the first emission area, a thin film encapsulation layer on the first light emitting element, a second base portion on the thin film encapsulation layer, a first color filter on the second base portion and overlapping the first emission area, a first wavelength conversion pattern on the first color filter and overlapping the first emission area, and a first optical pattern between the first color filter and the first wavelength conversion pattern and overlapping the first emission area. A refractive index of the first optical pattern is smaller than that of the first wavelength conversion pattern, and one surface of the first optical pattern facing the first wavelength conversion pattern is concave toward the second base portion.Type: ApplicationFiled: December 18, 2020Publication date: September 7, 2023Inventors: Jang Il KIM, Chang Soon JANG, Jeong Ki KIM, Chan Su KIM, Kyoung Hae MIN, Keun Chan OH, Gak Seok LEE, Sang Hun LEE, So Yun LEE, Ji Eun JANG, You Young JIN, Seok Joon HONG
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Publication number: 20230284501Abstract: A color converting substrate includes a substrate in which a first light transmitting area, a second light transmitting area, and a third light transmitting area are defined; a first stack disposed on the second substrate and overlapping the first light transmitting area, the second light transmitting area, and the third light transmitting area; a first color filter disposed on the first stack and overlapping the first light transmitting area; a second color filter overlapping the second light transmitting area; a third color filter overlapping the third light transmitting area; and a second stack disposed between the first stack and at least one of the second color filter and the third color filter.Type: ApplicationFiled: October 13, 2020Publication date: September 7, 2023Inventors: In Ok KIM, Keun Chan OH, Sun Kyu JOO, Jang Soo KIM, Jae Cheol PARK, Jae Min SEONG, You Sik SHIN
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Patent number: 11730038Abstract: A light emitting display device comprises a substrate, a first pixel electrode disposed on the substrate, a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode, a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film, and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.Type: GrantFiled: October 20, 2022Date of Patent: August 15, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun Kyu Joo, Byung Chul Kim, Sung Chul Kim, Su Jeong Kim, In Ok Kim, Hye Ran Mun, In Seok Song, Keun Chan Oh, Jae Jin Lyu, Yui Ku Lee
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Patent number: 11723236Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.Type: GrantFiled: December 4, 2020Date of Patent: August 8, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun-Kyu Joo, In Seok Song, Keun Chan Oh, Byung-Chul Kim, In Ok Kim, Gak Seok Lee, Chang-Soon Jang
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Publication number: 20230209959Abstract: A display device includes: a substrate including a first emission area, a second emission area, and a third emission area; a first wavelength conversion pattern overlapping the first emission area; a second wavelength conversion pattern overlapping the second emission area; and a light-transmitting pattern overlapping the third emission area, wherein the first wavelength conversion pattern includes first wavelength shifters configured to convert a first light into a second light, and first scatterers, the second wavelength conversion pattern includes second wavelength shifters configured to convert the first light into a third light, and second scatterers, and a ratio between a concentration of the first wavelength shifters and a concentration of the second wavelength shifters is 1:1.1 to 1:1.3.Type: ApplicationFiled: September 21, 2022Publication date: June 29, 2023Inventors: Young Soo KWON, Sun Young KWON, Min Seok KIM, Bu Yong KIM, Song Yi KIM, Soo Dong KIM, Su Jin KIM, Jin Won KIM, Da Hye PARK, Dong Gyu BAECK, Hye Jin PAEK, Tae Young SONG, Keun Chan OH, Won Gap YOON, Ki Heon LEE, Myung Jin LEE, Hyeok Jin LEE, Woo Man JI, Ho Yeon JI, Yong Seok CHOI
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Publication number: 20230209958Abstract: A display device includes a first substrate including a first emission area, a second emission area, and a third emission area, each of which is to emit a first light; a second substrate having a first surface facing the first substrate and a second surface opposite to the first surface; a first color filter, a second color filter and a third color filter, and a first wavelength conversion pattern, a second wavelength conversion pattern and a light-transmitting pattern on the first surface of the second substrate. A thickness of the first color filter is greater than a thickness of the second color filter and the thickness of the second color filter is greater than a thickness of the third color filter.Type: ApplicationFiled: September 21, 2022Publication date: June 29, 2023Inventors: Chang Soon JANG, In Ok KIM, Chan Su KIM, Keun Chan OH, Gak Seok LEE, Sang Hun LEE, So Yun LEE, Ji Eun JANG
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Publication number: 20230139303Abstract: A manufacturing method of a display device according to an embodiment includes forming a bank separating a first opening, a second opening, and a third opening on a first substrate, forming a scatterer layer in the first opening, the second opening, and the third opening, forming a first ink layer in the first opening, forming a second ink layer in the second opening, and forming a third ink layer in the third opening.Type: ApplicationFiled: July 7, 2022Publication date: May 4, 2023Applicant: Samsung Display Co., LTD.Inventors: Youngsoo KWON, Sun Young KWON, Tae Young SONG, Keun Chan OH, Won-Gap YOON, Myung Jin LEE, Hyeok Jin LEE, Yongseok CHOI
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Publication number: 20230051958Abstract: Provided are a color converting substrate and a display device including same. The color converting substrate includes: a base portion in which a first light transmission area, a first light blocking area, and a second light transmission area, which are sequentially and closely arranged in a first direction, are defined; a first wavelength converting pattern located on the base portion and configured to wavelength-covert a first color light into a second color light; a second wavelength converting pattern located on the base portion and configured to wavelength-convert the first color light into a third color light; and a light transmission pattern located on the base portion and configured to transmit the first color light.Type: ApplicationFiled: June 24, 2020Publication date: February 16, 2023Inventors: Jae Min SEONG, In Ok KIM, Keun Chan OH, Gak Seok LEE, Sun Kyu JOO, Byung Chul KIM, In Seok SONG, You Sik SHIN, Ji Eun JANG, Chang Soon JANG, Ha Lim JI
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Publication number: 20230045221Abstract: A light emitting display device comprises a substrate, a first pixel electrode disposed on the substrate, a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode, a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film, and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.Type: ApplicationFiled: October 20, 2022Publication date: February 9, 2023Applicant: Samsung Display Co. Ltd.Inventors: Sun Kyu JOO, Byung Chul KIM, Sung Chul KIM, Su Jeong KIM, In Ok KIM, Hye Ran MUN, In Seok SONG, Keun Chan OH, Jae Jin LYU, Yui Ku LEE
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Patent number: 11495643Abstract: A light emitting display device comprises a substrate, a first pixel electrode disposed on the substrate, a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode, a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film, and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.Type: GrantFiled: September 29, 2020Date of Patent: November 8, 2022Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Sun Kyu Joo, Byung Chul Kim, Sung Chul Kim, Su Jeong Kim, In Ok Kim, Hye Ran Mun, In Seok Song, Keun Chan Oh, Jae Jin Lyu, Yui Ku Lee
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Patent number: 11309360Abstract: A color conversion substrate includes a base on which first to third light outputting regions and a light shielding region surrounding the first to third light outputting regions are defined; first to third color filters on the base in the first to third light outputting regions, respectively; a first light shielding member on the first color filter in the light shielding region; a light transmission pattern on the first color filter; a first wavelength conversion pattern on the second color filter and which converts light of a first color into light of a second color; and a second wavelength conversion pattern on the third color filter and which converts the light of the first color into light of a third color. A first opening located in the light shielding region is defined in at least one of the light transmission pattern and the first and second wavelength conversion patterns.Type: GrantFiled: October 3, 2019Date of Patent: April 19, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun Kyu Joo, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Gak Seok Lee, Ji Eun Jang, Chang Soon Jang
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Patent number: 11289544Abstract: A display device is provided. A display device includes a plurality of pixels arranged in a row axis and in a column axis that intersects the row axis, a first substrate on which a light-emitting element disposed in each of the pixels is disposed, a second substrate which faces the first substrate, and a first wavelength conversion pattern disposed on the second substrate in a first pixel column and which converts wavelength of light emitted from the light-emitting element. The first wavelength conversion pattern includes a first main pattern part arranged in a stripe fashion along the column axis and a protruding pattern part projected from the first main pattern part toward at least one of first and second directions of the row axis.Type: GrantFiled: July 11, 2019Date of Patent: March 29, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun Kyu Joo, Keun Chan Oh, Byung Chul Kim, In Ok Kim, In Seok Song, Gak Seok Lee, Chang Soon Jang