Patents by Inventor Hyunduck Cho
Hyunduck 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: 20240147806Abstract: A display apparatus for minimizing image quality deterioration occurring due to external light includes a first pixel electrode arranged on a substrate, a pixel-defining layer arranged on the substrate, covering an edge of the first pixel electrode, and including a 1-1st pixel opening exposing a portion of the first pixel electrode, a spacer layer arranged on the pixel-defining layer and including a 2-1st pixel opening corresponding to the 1-1st pixel opening and exposing the portion of the first pixel electrode, and a first color filter layer arranged on the first pixel electrode and selectively transmitting light of a first wavelength range. In a plan view, a first length between an edge of the 1-1st pixel opening and an edge of the 2-1st pixel opening in a direction corresponds to the first wavelength range.Type: ApplicationFiled: August 2, 2023Publication date: May 2, 2024Applicant: Samsung Display Co., Ltd.Inventors: Yeongho Lee, Haseok Jeon, Jihyun Kim, Junhee Lee, Choongyoul Im, Hyunduck Cho, Kookhyun Choi, Seongyong Hwang
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Publication number: 20240122023Abstract: A display apparatus includes a substrate, a plurality of subpixels disposed over the substrate and including a red subpixel, a blue subpixel, and a green subpixel, an encapsulation layer over the plurality of subpixels, a light-blocking layer disposed over the encapsulation layer and including a plurality of openings respectively overlapping the plurality of subpixels, and a plurality of color filters disposed over the light-blocking layer and including a red color filter, a blue color filter, and a green color filter. The plurality of color filters include a repetitive arrangement structure of a color filter pattern unit block, the plurality of subpixels include a repetitive arrangement structure of a subpixel pattern unit block, and a size of the color filter pattern unit block is greater than a size of the subpixel pattern unit block.Type: ApplicationFiled: September 30, 2023Publication date: April 11, 2024Inventors: Jinsu LEE, Hyunduck CHO, Hongjo PARK, Beohmrock CHOI
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Publication number: 20230225172Abstract: A display panel includes: a substrate; a plurality of display elements disposed over the substrate; a plurality of first light-blocking layers disposed over the plurality of display elements and corresponding to places between the plurality of display elements; a plurality of second light-blocking layers disposed over the plurality of first light-blocking layers and corresponding to the places between the plurality of display elements; and a color filter layer disposed over the plurality of second light-blocking layers and including color filters corresponding to the plurality of display elements.Type: ApplicationFiled: November 9, 2022Publication date: July 13, 2023Inventors: Chiwook An, Beohmrock Choi, Hyunduck Cho, Miran Ji, Hyeonbum Lee
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Publication number: 20230209883Abstract: Provided is a display apparatus includes a substrate including a first area and a second area; a first display element arranged in the first area; a second display element arranged in the second area; an input sensing layer disposed on the first display element and the second display element; an anti-reflection layer disposed on the input sensing layer; and a light blocking layer disposed on the anti-reflection layer, the light blocking layer having a first hole overlapping the emission area of the first display element and a second hole overlapping the emission area of the second display element, wherein an area of the first hole is greater than an area of the second hole.Type: ApplicationFiled: September 7, 2022Publication date: June 29, 2023Inventors: Miran Ji, Hyunduck Cho
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Publication number: 20230068337Abstract: A display device includes a display panel that includes a first region and a second region, each of that includes first to third light emitting regions and a non-light emitting region, and that includes first to third light emitting elements that provide different colors of light to corresponding first to third light emitting regions, at least one insulation layer disposed on the display panel, a light blocking pattern disposed on the insulation layer, and that overlaps the non-light emitting region, and a passivation layer that covers the light blocking pattern, wherein each of the first to third light emitting regions of the second region includes a plurality of unit regions, and each of the unit regions has the same width in one direction, and has a width smaller than the width of each of the first to third light emitting regions of the first region in the one direction.Type: ApplicationFiled: July 6, 2022Publication date: March 2, 2023Inventors: CHIWOOK AN, Hyunduck Cho, Beohmrock Choi, Hyeonbum Lee, Jongbeom Hong
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Publication number: 20230038366Abstract: A display device includes a display panel, a first insulating layer on the display panel and having a first refractive index, and a second insulating layer on the first insulating layer and having a second refractive index. The display panel includes a pixel definition layer in which a plurality of emission openings are defined, and a plurality of light emitting elements that respectively correspond to the plurality of emission openings. The first insulating layer has a plurality of openings that correspondingly overlap the plurality of emission openings. Each of the plurality of emission openings extends in an extending direction. Each of the plurality of openings extends in a direction that intersects an extending direction of an overlapped emission opening.Type: ApplicationFiled: May 19, 2022Publication date: February 9, 2023Inventors: HYEONBUM LEE, CHIWOOK AN, HYUNDUCK CHO
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Publication number: 20220336781Abstract: A display device includes a display panel including a light emitting area, from which a light is emitted, and a peripheral area adjacent to the light emitting area, and a light blocking member disposed on the display panel to block the light. At least a portion of the light blocking member is disposed in the light emitting area, one side surface of the light blocking member is disposed in the light emitting area, and an opposing side surface of the light blocking member, which is opposite to the one side surface, is disposed closer to a center of the peripheral area than the one side surface is.Type: ApplicationFiled: January 10, 2022Publication date: October 20, 2022Inventors: JONGBEOM HONG, YONGSUB SHIM, CHIWOOK AN, HYUNDUCK CHO
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Patent number: 11462596Abstract: A display device includes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: GrantFiled: August 4, 2020Date of Patent: October 4, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinwoo Park, Hyunduck Cho, Wonkyu Kwak
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Publication number: 20220246881Abstract: A display apparatus includes a substrate, a display layer disposed on the substrate, the display layer including an emission area, an upper organic insulating layer disposed over the display layer, the upper organic insulating layer having a first opening overlapping the emission area, a lower light-blocking layer disposed on the upper organic insulating layer, the lower light-blocking layer having a second opening overlapping the first opening in a plan view, an upper planarization layer covering the lower light-blocking layer, the upper planarization layer filling the first opening, and an upper light-blocking layer disposed on the upper planarization layer, the upper light-blocking layer overlapping the lower light-blocking layer in a plan view and having a third opening overlapping the second opening in a plan view.Type: ApplicationFiled: October 29, 2021Publication date: August 4, 2022Inventors: Hyeonbum Lee, Hyunduck Cho
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Publication number: 20220059805Abstract: A display device includes: a substrate; a display layer arranged above the substrate and including a display element; an encapsulation layer above the display layer; a lower light-shielding layer above the encapsulation layer; an upper light-shielding layer at least partially overlapping the lower light-shielding layer in a plan view and arranged above the lower light-shielding layer; and an organic layer arranged between the lower light-shielding layer and the upper light-shielding layer and separating the lower light-shielding layer and the upper light-shielding layer from each other.Type: ApplicationFiled: July 21, 2021Publication date: February 24, 2022Inventors: Hyunduck Cho, Sungmin Kim, Hongjo Park, Chiwook An
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Patent number: 10852866Abstract: A display device includes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: GrantFiled: October 4, 2017Date of Patent: December 1, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinwoo Park, Hyunduck Cho, Wonkyu Kwak
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Publication number: 20200363894Abstract: A display device includes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: ApplicationFiled: August 4, 2020Publication date: November 19, 2020Inventors: Jinwoo Park, Hyunduck Cho, Wonkyu Kwak
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Patent number: 10739893Abstract: A display device includes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: GrantFiled: February 26, 2019Date of Patent: August 11, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jinwoo Park, Hyunduck Cho, Wonkyu Kwak
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Publication number: 20190196635Abstract: A display device includes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: ApplicationFiled: February 26, 2019Publication date: June 27, 2019Inventors: JINWOO PARK, HYUNDUCK CHO, WONKYU KWAK
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Patent number: 10020402Abstract: Provided are a thin film transistor (TFT) and a method of manufacturing the TFT. The TFT includes a substrate; a first conductive type semiconductor layer on the substrate and having a recess; second conductive type spacers at opposite side walls in the recess; a main semiconductor layer covering the first conductive type semiconductor layer and the second conductive type spacers and comprising a channel region and source and drain regions; a gate insulating layer on the main semiconductor layer; and a gate electrode on the gate insulating layer and corresponding to the recess.Type: GrantFiled: March 3, 2015Date of Patent: July 10, 2018Assignee: Samsung Display Co., Ltd.Inventors: Suk Hoon Ku, Hyunduck Cho
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Publication number: 20180129328Abstract: A display device incudes a display panel and an infrared sensing module. The display panel includes an active region in which a pixel that emits light based on a data signal is disposed. The infrared sensing module transmits a first infrared light that passes through the active region and receives a second infrared light that passes through the active region to recognize an object. The wavelength of the first infrared light may have a wavelength greater than a predetermined value so that a luminance of light emitted by the pixel is not affected by operation of the infrared sensing module.Type: ApplicationFiled: October 4, 2017Publication date: May 10, 2018Inventors: JINWOO PARK, Hyunduck Cho, Wonkyu Kwak
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Patent number: 9966391Abstract: A backplane for a display apparatus includes a substrate including a display area and a non-display area; a first transistor formed on the display area; and a second transistor formed on the non-display area, wherein a first active layer includes a first channel area, a first source area disposed on one side of the first channel area, a first drain area disposed on the other side of the first channel area, and a low-density doped area and a halo doped area that are adjacent to both ends of the first gate electrode, and the second active layer includes a second channel area, a second source area disposed on one side of the second channel area, and a second drain area disposed on the other side of the second channel area.Type: GrantFiled: September 13, 2016Date of Patent: May 8, 2018Assignee: Samsung Display Co., Ltd.Inventors: Minhyun Jin, Hyunduck Cho
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Patent number: 9818965Abstract: A method of fabricating an organic light-emitting device, including: providing a substrate; forming a control electrode on the substrate; forming an insulating layer covering at least a top surface of the control electrode; forming a hole transport layer pattern through printing on at least a part of the insulating layer; forming an organic light-emitting layer to be in contact with at least a part of a surface of the hole transport layer pattern; forming an electron transport layer pattern through printing to be in contact with at least a part of a surface of the organic light-emitting layer; and forming a first electrode and a second electrode respectively on the hole transport layer pattern and the electron transport layer pattern.Type: GrantFiled: November 13, 2015Date of Patent: November 14, 2017Assignee: SNU R&DB FOUNDATIONInventors: Hyunduck Cho, Jeongkyun Roh, Hyunkoo Lee, Changhee Lee, Yongtaek Hong
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Publication number: 20160380008Abstract: A backplane for a display apparatus includes a substrate including a display area and a non-display area; a first transistor formed on the display area; and a second transistor formed on the non-display area, wherein a first active layer includes a first channel area, a first source area disposed on one side of the first channel area, a first drain area disposed on the other side of the first channel area, and a low-density doped area and a halo doped area that are adjacent to both ends of the first gate electrode, and the second active layer includes a second channel area, a second source area disposed on one side of the second channel area, and a second drain area disposed on the other side of the second channel area.Type: ApplicationFiled: September 13, 2016Publication date: December 29, 2016Inventors: Minhyun Jin, Hyunduck Cho
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Patent number: 9530805Abstract: A backplane for a display apparatus includes a substrate including a display area and a non-display area; a first transistor formed on the display area; and a second transistor formed on the non-display area, wherein a first active layer includes a first channel area, a first source area disposed on one side of the first channel area, a first drain area disposed on the other side of the first channel area, and a low-density doped area and a halo doped area that are adjacent to both ends of the first gate electrode, and the second active layer includes a second channel area, a second source area disposed on one side of the second channel area, and a second drain area disposed on the other side of the second channel area.Type: GrantFiled: December 12, 2014Date of Patent: December 27, 2016Assignee: Samsung Display Co., Ltd.Inventors: Minhyun Jin, Hyunduck Cho