Patents by Inventor Hyeon-Deuk HWANG
Hyeon-Deuk HWANG 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: 20240136474Abstract: A method of manufacturing a display device includes providing an adhesive material layer on a display panel, curing the adhesive material layer to form an adhesive layer, providing a cover layer on the adhesive layer, and adhering the cover layer to the adhesive layer, and a modulus of the adhesive layer at room temperature is in a range of about 103 Pa to about 106 Pa.Type: ApplicationFiled: June 4, 2023Publication date: April 25, 2024Applicant: Samsung Display Co., LTD.Inventors: Ji Yun BANG, Jung Wook KIM, Hee Chang KIM, Eun Joong MUN, Kyoung Hee PARK, Hyeon Deuk HWANG
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Publication number: 20240138072Abstract: A method of manufacturing an electronic device includes providing a mold with a first opening defined therein and including a projection portion disposed in the first opening, forming, in the first opening, a first layer including a first material through an inkjet printing method, disposing the mold on a display panel in a way such that the first opening faces the display panel, and forming a display module by removing the mold. The display module is provided with a second opening defined therein and corresponding to the projection portion.Type: ApplicationFiled: August 7, 2023Publication date: April 25, 2024Inventors: SHINYA ONOUE, EUNJOONG MUN, HYEON DEUK HWANG, JUNGWOOK KIM, HEECHANG KIM, Kyounghee PARK, JIYUN BANG
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Publication number: 20240040904Abstract: A display device includes: a display panel including a hole area, a first area adjacent to the hole area, and a second area other than the hole area and the first area; a first cover layer under the display panel, defining a first opening in the hole area, and overlapping the first area and the second area; and a second cover layer under the first cover layer, defining a second opening in the hole area, overlapping the first area and the second area, and including a groove defined along a boundary between the first area and the second area.Type: ApplicationFiled: May 17, 2023Publication date: February 1, 2024Inventors: JUNGWOOK KIM, HEECHANG KIM, EUNJOONG MUN, Kyounghee PARK, JIYUN BANG, HYEON DEUK HWANG
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Patent number: 11751416Abstract: A display device including a display panel having a first surface and a second surface opposite to the first surface, a guide structure disposed on the first surface of the display panel, and a window disposed on the second surface of the display panel, in which the guide structure includes a guide film configured to apply a preliminary pressure to the display panel, and a cover panel disposed between the guide film and the display panel, the cover panel including a cushion layer.Type: GrantFiled: February 21, 2020Date of Patent: September 5, 2023Assignee: Samsung Display Co., LTD.Inventors: Eunjoong Mun, Hyung-Don Na, Dong Yeon Lee, Jungkyu Jo, Hyeon Deuk Hwang
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Patent number: 11693268Abstract: A display device includes a display panel including a display area and a non-display area, a window disposed on the display panel and including a base substrate and a printed layer disposed on a surface of the base substrate and overlapping with the non-display area, and an adhesive layer disposed between the display panel and the window. The adhesive layer includes a first adhesive portion overlapping with the non-display area, and a second adhesive portion adjacent to the first adhesive portion and having a creep value different from a creep value of the first adhesive portion.Type: GrantFiled: May 31, 2022Date of Patent: July 4, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eunjoong Mun, Dong Yeon Lee, Hyung-Don Na, Jungkyu Jo, Hyeon Deuk Hwang
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Patent number: 11668642Abstract: A method of measuring adhesive strength includes setting an evaluation time (te), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (Fe1) for the evaluation time (te), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (Fe2), which is obtained by increasing the first measurement force (Fe1) by a preset amount, for the evaluation time (te), and determining a reference measurement force (Fes) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (dt) is determined.Type: GrantFiled: February 23, 2021Date of Patent: June 6, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Han Ho Park, Hyung-Don Na, Kyung Jun Park, Eun Ji Park, Chang Seob Jung, Hyeon Deuk Hwang
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Patent number: 11635360Abstract: A method for evaluating a binder includes disposing the binder on a first plate, bringing a second plate, which faces the first plate, into contact with one surface of the binder, applying a stress to the binder through the second plate, measuring a strain of the binder due to the applied stress, and calculating a curing rate of the binder based on the strain of the binder.Type: GrantFiled: November 15, 2019Date of Patent: April 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Deuk Hwang, Eun Joong Mun, Dong Yeon Lee, Hyung Don Na
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Publication number: 20230071510Abstract: A display module includes a base layer including a first portion including a light emitting device, a second portion including a circuit board electrically connected to the second portion, and a third portion disposed between the first portion and the second portion, the third portion being bent, a light emitting device layer overlapping the first portion in a plan view and disposed on an upper surface of the first portion of the base layer, a protective film disposed on a lower surface of the base layer, the protective film including an opening overlapping the third portion of the base layer in a plan view, and a first protective layer disposed on a lower surface of the third portion and overlapping the opening of the protective film in a plan view, wherein a modulus of the first protective layer is about 106 Pa or higher than about 106 Pa.Type: ApplicationFiled: May 17, 2022Publication date: March 9, 2023Applicant: Samsung Display Co., Ltd.Inventors: YUNJEONG CHO, DAEWOO LEE, KYUNGHOON CHAE, HYEON DEUK HWANG, DOHYUNG RYU
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Publication number: 20230054810Abstract: A display device includes: a substrate including a display area, a pad area, and a bending area, where the bending area is positioned between the display area and the pad area, is bent from the display area, and is divided into a first area and a second area surrounding the first area; a protection film disposed on the substrate to overlap the display area, the pad area, and the second area, where an opening overlapping the first area is defined in the protection film; and a reinforcing agent disposed in the opening.Type: ApplicationFiled: March 11, 2022Publication date: February 23, 2023Inventors: KYUNGHOON CHAE, DAEWOO LEE, YUNJEONG CHO, HYEON DEUK HWANG, DOHYUNG RYU
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Publication number: 20220291540Abstract: A display device includes a display panel including a display area and a non-display area, a window disposed on the display panel and including a base substrate and a printed layer disposed on a surface of the base substrate and overlapping with the non-display area, and an adhesive layer disposed between the display panel and the window. The adhesive layer includes a first adhesive portion overlapping with the non-display area, and a second adhesive portion adjacent to the first adhesive portion and having a creep value different from a creep value of the first adhesive portion.Type: ApplicationFiled: May 31, 2022Publication date: September 15, 2022Inventors: Eunjoong MUN, Dong Yeon LEE, Hyung-Don NA, Jungkyu JO, HYEON DEUK HWANG
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Patent number: 11372273Abstract: A display device includes a display panel including a display area and a non-display area, a window disposed on the display panel and including a base substrate and a printed layer disposed on a surface of the base substrate and overlapping with the non-display area, and an adhesive layer disposed between the display panel and the window. The adhesive layer includes a first adhesive portion overlapping with the non-display area, and a second adhesive portion adjacent to the first adhesive portion and having a creep value different from a creep value of the first adhesive portion.Type: GrantFiled: March 30, 2020Date of Patent: June 28, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eunjoong Mun, Dong Yeon Lee, Hyung-Don Na, Jungkyu Jo, Hyeon Deuk Hwang
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DISPLAY DEVICE, APPARATUS FOR MANUFACTURING THE SAME, AND METHOD OF MANUFACTURING THE DISPLAY DEVICE
Publication number: 20220173286Abstract: A manufacturing method of a display device includes providing a display module including a display panel, a first flexible circuit board disposed at a first side edge of the display panel, a window disposed on the display panel, and an optical film disposed between the display panel and the window on the stage; aligning the display module such that the first side edge is disposed under the bonding unit; moving the position detection sensor along the first side edge of the display module to sense a first coating path; moving the resin supply unit along the sensed first coating path to coat a first filling agent between the window and the display panel; and moving the light irradiation unit along the sensed first coating path to cure the coated first filling agent to form a first filling layer.Type: ApplicationFiled: September 17, 2021Publication date: June 2, 2022Inventors: HYEON DEUK HWANG, YUNJEONG CHO, KYUNGHOON CHAE, SIMHEE RYU, JE YOON YOO, SUNG SOO LEE -
Publication number: 20210364416Abstract: A method of measuring adhesive strength includes setting an evaluation time (te), fixing a substrate and an adhesive member to a measurement device, pulling the adhesive member fixed to the measurement device with a first measurement force (Fe1) for the evaluation time (te), pulling the adhesive member fixed to the measurement device is pulled with a second measurement force (Fe2), which is obtained by increasing the first measurement force (Fe1) by a preset amount, for the evaluation time (te), and determining a reference measurement force (Fes) which is a static force applied to the adhesive member when a distance by which a first portion of the adhesive member is detached from the substrate is equal to a preset distance (dt) is determined.Type: ApplicationFiled: February 23, 2021Publication date: November 25, 2021Inventors: Han Ho PARK, Hyung-Don NA, Kyung Jun PARK, Eun Ji PARK, Chang Seob JUNG, Hyeon Deuk HWANG
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Patent number: 11172577Abstract: A display device includes a display panel having a display area and a non-display area at least partially surrounding the display area. A panel support sheet is disposed behind the display panel and has a first hole exposing the display area of the display panel. An optical sensor is disposed within the first hole. A first light-blocking portion is disposed in a void area that is between the panel support sheet and the optical sensor, within the first hole.Type: GrantFiled: July 26, 2019Date of Patent: November 9, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ji Young Wang, So Yeon Joo, Hyun Hee Lee, Se Hun Park, Chang Mo Park, Jong Man Bae, Hyeon Deuk Hwang
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Publication number: 20200381648Abstract: A display device including a display panel having a first surface and a second surface opposite to the first surface, a guide structure disposed on the first surface of the display panel, and a window disposed on the second surface of the display panel, in which the guide structure includes a guide film configured to apply a preliminary pressure to the display panel, and a cover panel disposed between the guide film and the display panel, the cover panel including a cushion layer.Type: ApplicationFiled: February 21, 2020Publication date: December 3, 2020Inventors: Eunjoong MUN, Hyung-Don NA, Dong Yeon LEE, Jungkyu JO, Hyeon Deuk HWANG
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Publication number: 20200333833Abstract: A display device includes a display panel including a display area and a non-display area, a window disposed on the display panel and including a base substrate and a printed layer disposed on a surface of the base substrate and overlapping with the non-display area, and an adhesive layer disposed between the display panel and the window. The adhesive layer includes a first adhesive portion overlapping with the non-display area, and a second adhesive portion adjacent to the first adhesive portion and having a creep value different from a creep value of the first adhesive portion.Type: ApplicationFiled: March 30, 2020Publication date: October 22, 2020Inventors: Eunjoong MUN, Dong Yeon LEE, Hyung-Don NA, Jungkyu JO, HYEON DEUK HWANG
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Publication number: 20200182762Abstract: A method for evaluating a binder includes disposing the binder on a first plate, bringing a second plate, which faces the first plate, into contact with one surface of the binder, applying a stress to the binder through the second plate, measuring a strain of the binder due to the applied stress, and calculating a curing rate of the binder based on the strain of the binder.Type: ApplicationFiled: November 15, 2019Publication date: June 11, 2020Inventors: Hyeon Deuk HWANG, Eun Joong MUN, Dong Yeon LEE, Hyung Don NA
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Publication number: 20200045826Abstract: A display device includes a display panel having a display area and a non-display area at least partially surrounding the display area. A panel support sheet is disposed behind the display panel and has a first hole exposing the display area of the display panel. An optical sensor is disposed within the first hole. A first light-blocking portion is disposed in a void area that is between the panel support sheet and the optical sensor, within the first hole.Type: ApplicationFiled: July 26, 2019Publication date: February 6, 2020Inventors: JI YOUNG WANG, SO YEON JOO, HYUN HEE LEE, SE HUN PARK, CHANG MO PARK, JONG MAN BAE, HYEON DEUK HWANG
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Patent number: 10195831Abstract: Disclosed is a method of manufacturing an adhesive film including: preparing a transparent adhesion layer, disposing a film mask including a light-transmitting region and a light-shielding region on the transparent adhesion layer, applying ultraviolet (UV) light to the transparent adhesion layer through the film mask to precure an area of the transparent adhesion layer corresponding to the light-transmitting region of the film mask, and cutting the precured area of the transparent adhesion layer.Type: GrantFiled: December 31, 2013Date of Patent: February 5, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon-Deuk Hwang, Dong-Hyuk Lim, Myung-Jae Jung
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Patent number: 10197717Abstract: A window member for a display device includes a base substrate having a light transmission area and a light blocking area adjacent to the light transmission area. A light blocking layer is disposed on one surface of the base substrate in the light blocking area. The light blocking layer includes a light blocking base capable of blocking light; and a heat radiating pigment dispersed on the light blocking base.Type: GrantFiled: March 25, 2015Date of Patent: February 5, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon-Deuk Hwang, Ik-Jun Hong