Patents by Inventor Jong-Whan Cho
Jong-Whan 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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Patent number: 10897826Abstract: A cover window of a flexible display device includes a base substrate including an out-folding area, an in-folding area, and peripheral areas disposed on opposing sides of at least one of the out-folding area and the in-folding area, a first hard coating layer at a top surface of the base substrate, the first hard coating layer having a substantially uniform thickness, and a second hard coating layer at a bottom surface of the base substrate opposite to the top surface, the second hard coating layer having a thickness different from the thickness of the first hard coating layer. A thickness of a first area of the second hard coating layer that overlaps with the out-folding area and the in-folding area of the base substrate is less than a thickness of a second area of the second hard coating layer that overlaps with the peripheral areas of the base substrate.Type: GrantFiled: July 25, 2019Date of Patent: January 19, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hoon Jung, Jong-Whan Cho, Suk-Man Yang, Young-Sik Yoon, Jong-In Lee
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Patent number: 10863634Abstract: A cover window of a flexible display device includes a base substrate including an out-folding area, an in-folding area, and peripheral areas disposed on opposing sides of at least one of the out-folding area and the in-folding area, a first hard coating layer at a top surface of the base substrate, the first hard coating layer having a substantially uniform thickness, and a second hard coating layer at a bottom surface of the base substrate opposite to the top surface, the second hard coating layer having a thickness different from the thickness of the first hard coating layer. A thickness of a first area of the second hard coating layer that overlaps with the out-folding area and the in-folding area of the base substrate is less than a thickness of a second area of the second hard coating layer that overlaps with the peripheral areas of the base substrate.Type: GrantFiled: July 25, 2019Date of Patent: December 8, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hoon Jung, Jong-Whan Cho, Suk-Man Yang, Young-Sik Yoon, Jong-In Lee
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Publication number: 20190350092Abstract: A cover window of a flexible display device includes a base substrate including an out-folding area, an in-folding area, and peripheral areas disposed on opposing sides of at least one of the out-folding area and the in-folding area, a first hard coating layer at a top surface of the base substrate, the first hard coating layer having a substantially uniform thickness, and a second hard coating layer at a bottom surface of the base substrate opposite to the top surface, the second hard coating layer having a thickness different from the thickness of the first hard coating layer. A thickness of a first area of the second hard coating layer that overlaps with the out-folding area and the in-folding area of the base substrate is less than a thickness of a second area of the second hard coating layer that overlaps with the peripheral areas of the base substrate.Type: ApplicationFiled: July 25, 2019Publication date: November 14, 2019Inventors: Jae-Hoon JUNG, Jong-Whan CHO, Suk-Man YANG, Young-Sik YOON, Jong-In LEE
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Patent number: 10375839Abstract: A cover window of a flexible display device includes a base substrate including an out-folding area, an in-folding area, and peripheral areas disposed on opposing sides of at least one of the out-folding area and the in-folding area, a first hard coating layer at a top surface of the base substrate, the first hard coating layer having a substantially uniform thickness, and a second hard coating layer at a bottom surface of the base substrate opposite to the top surface, the second hard coating layer having a thickness different from the thickness of the first hard coating layer. A thickness of a first area of the second hard coating layer that overlaps with the out-folding area and the in-folding area of the base substrate is less than a thickness of a second area of the second hard coating layer that overlaps with the peripheral areas of the base substrate.Type: GrantFiled: June 13, 2016Date of Patent: August 6, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Hoon Jung, Jong-Whan Cho, Suk-Man Yang, Young-Sik Yoon, Jong-In Lee
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Patent number: 9862173Abstract: A method for fabricating window member may include preparing a transparent polymer film, disposing a light curable adhesive layer on a surface of the transparent polymer film, disposing a transparent substrate on the light curable adhesive layer, the transparent substrate including a transmitting region and a non-transmitting region, and curing the light curable adhesive layer by light irradiation. The light curable adhesive layer may include a transparent adhesive. A storage modulus of the transparent adhesive may be greater than or equal to about 103 Pa to less than about 106 Pa at room temperature before curing, and greater than or equal to about 106 Pa at room temperature after curing.Type: GrantFiled: January 8, 2015Date of Patent: January 9, 2018Assignee: Samsung Display Co., Ltd.Inventors: Hyeon-Deuk Hwang, Jong-Whan Cho, Jong-Deok Park
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Patent number: 9774714Abstract: A method for fabricating a window member is provided. A transparent substrate including a transmitting region and a non-transmitting region may be prepared. A light curable adhesive layer may be disposed on the transparent substrate. A plurality of micro patterns may be disposed on the transparent substrate or the light curable adhesive layer in the non-transmitting region. The light curable adhesive layer may be cured by light irradiation. The light curable adhesive layer may include a transparent adhesive. A storage modulus of the transparent adhesive may be greater than or equal to about 103 Pa and less than about 106 Pa at room temperature before curing, and greater than or equal to about 106 Pa at room temperature after curing.Type: GrantFiled: January 8, 2015Date of Patent: September 26, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jong-Whan Cho, Hyeon-Deuk Hwang, Jong-Deok Park
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Publication number: 20170064845Abstract: A cover window of a flexible display device includes a base substrate including an out-folding area, an in-folding area, and peripheral areas disposed on opposing sides of at least one of the out-folding area and the in-folding area, a first hard coating layer at a top surface of the base substrate, the first hard coating layer having a substantially uniform thickness, and a second hard coating layer at a bottom surface of the base substrate opposite to the top surface, the second hard coating layer having a thickness different from the thickness of the first hard coating layer. A thickness of a first area of the second hard coating layer that overlaps with the out-folding area and the in-folding area of the base substrate is less than a thickness of a second area of the second hard coating layer that overlaps with the peripheral areas of the base substrate.Type: ApplicationFiled: June 13, 2016Publication date: March 2, 2017Inventors: Jae-Hoon JUNG, Jong-Whan CHO, Suk-Man YANG, Young-Sik YOON, Jong-In LEE
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Patent number: 9572267Abstract: A window member in a curved display device includes a window body having a flat portion and a curved portion. A first radius of curvature of an inner surface of the curved portion may be different from a second radius of curvature of an outer surface of the curved portion.Type: GrantFiled: September 23, 2014Date of Patent: February 14, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jong-Whan Cho
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Publication number: 20150208537Abstract: A method for fabricating a window member is provided. A transparent substrate including a transmitting region and a non-transmitting region may be prepared. A light curable adhesive layer may be disposed on the transparent substrate. A plurality of micro patterns may be disposed on the transparent substrate or the light curable adhesive layer in the non-transmitting region. The light curable adhesive layer may be cured by light irradiation. The light curable adhesive layer may include a transparent adhesive. A storage modulus of the transparent adhesive may be greater than or equal to about 103 Pa and less than about 106 Pa at room temperature before curing, and greater than or equal to about 106 Pa at room temperature after curing.Type: ApplicationFiled: January 8, 2015Publication date: July 23, 2015Inventors: Jong-Whan CHO, Hyeon-Deuk HWANG, Jong-Deok PARK
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Publication number: 20150202853Abstract: A method for fabricating window member may include preparing a transparent polymer film, disposing a light curable adhesive layer on a surface of the transparent polymer film, disposing a transparent substrate on the light curable adhesive layer, the transparent substrate including a transmitting region and a non-transmitting region, and curing the light curable adhesive layer by light irradiation. The light curable adhesive layer may include a transparent adhesive. A storage modulus of the transparent adhesive may be greater than or equal to about 103 Pa to less than about 106 Pa at room temperature before curing, and greater than or equal to about 106 Pa at room temperature after curing.Type: ApplicationFiled: January 8, 2015Publication date: July 23, 2015Inventors: Hyeon-Deuk HWANG, Jong-Whan CHO, Jong-Deok PARK
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Publication number: 20150103474Abstract: A window member in a curved display device includes a window body having a flat portion and a curved portion. A first radius of curvature of an inner surface of the curved portion may be different from a second radius of curvature of an outer surface of the curved portion.Type: ApplicationFiled: September 23, 2014Publication date: April 16, 2015Inventor: Jong-Whan CHO
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Patent number: 8605038Abstract: A liquid crystal display includes an upper substrate, a lower substrate, and a liquid crystal layer interposed between the upper substrate and the lower substrate. The upper substrate includes a first insulating substrate, a transparent conductive layer on the first insulating substrate, and a first polarizer on the transparent conductive layer. The lower substrate includes a second insulating substrate, a second polarizer on the second insulating substrate, and a thin film transistor layer. The second insulating substrate is between the thin film transistor layer and the second polarizer. The transparent conductive layer allows an electric field to be formed on the first polarizer, so that a position signal input unit, which contacts the first polarizer, is capacitively coupled with the transparent conductive layer.Type: GrantFiled: November 12, 2008Date of Patent: December 10, 2013Assignee: Samsung Display Co., Ltd.Inventor: Jong-Whan Cho
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Patent number: 8586989Abstract: A display device includes a first display panel including a common electrode disposed thereon, and a second display panel including; thin film transistors (“TFTs”) each including a gate electrode, a source electrode, and a drain electrode, a first passivation layer disposed on the source and drain electrodes, a second passivation layer disposed on the first passivation layer and including at least one sensing protrusion, pixel electrodes disposed on the second passivation layer and connected with the drain electrode, and at least one conductive member disposed on the sensing protrusion.Type: GrantFiled: July 6, 2011Date of Patent: November 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jong-Whan Cho, Jeong-Geun Yoo, Byung-Woong Han
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Patent number: 8333496Abstract: A backlight assembly includes a light source, a light-guiding plate and a diffusion sheet that includes a first bead layer on a lower surface of the diffusion sheet facing the light-guiding plate, and a second bead layer on an upper surface of the diffusion sheet. To improve image display quality, the hardness of the beads of the first bead layer facing the light guide plate are equal to or less than that of the light guide plate to prevent scratching of the light guide plate.Type: GrantFiled: October 30, 2009Date of Patent: December 18, 2012Assignee: Samsung Display Co., Ltd.Inventors: Byung-Woong Han, Young-Bee Chu, Jong-Whan Cho, Dong-Cheol Kim, Ju-Hyoun Kim, Young-Hee Park, Kyu-Seok Kim, Jong-Nam Lee
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Patent number: 8058603Abstract: A light sensing panel includes a scan line transmitting a scan signal, a power source line transmitting a bias voltage, a readout line transmitting a light sensing signal and a light sensing device. The light sensing device includes a control electrode that is electrically connected to the scan line to receive the scan signal, a first current electrode that is electrically connected to the power source line to receive the bias voltage, and a second current electrode that is electrically connected to the readout line to apply a light sensing signal to the readout line when the light sensing signal senses an external light. The light sensing panel requires only one thin film transistor in order to detect a position wherein the external light is incident. Therefore, electrical coupling between devices is reduced and aperture ratio is increased, thereby enhancing a display quality.Type: GrantFiled: March 26, 2007Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Jin Park, Kee-Han Uh, Young-Bae Jung, Jong-Whan Cho, Young-Jun Choi
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Publication number: 20110266547Abstract: A display device includes a first display panel including a common electrode disposed thereon, and a second display panel including; thin film transistors (“TFTs”) each including a gate electrode, a source electrode, and a drain electrode, a first passivation layer disposed on the source and drain electrodes, a second passivation layer disposed on the first passivation layer and including at least one sensing protrusion, pixel electrodes disposed on the second passivation layer and connected with the drain electrode, and at least one conductive member disposed on the sensing protrusion.Type: ApplicationFiled: July 6, 2011Publication date: November 3, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-Whan CHO, Jeong-Geun YOO, Byung-Woong HAN
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Patent number: 8040442Abstract: A liquid crystal display apparatus comprising a liquid crystal display panel and a touch panel is disclosed. A first transparent electrode is disposed on an upper surface of the liquid crystal display panel for displaying an image. A second transparent electrode is disposed on a lower surface of a retardation member and the second transparent electrode is opposite to the first transparent electrode. Accordingly, the entire thickness of the liquid crystal display apparatus may be decreased, and the manufacturing cost of the liquid crystal display apparatus may be reduced.Type: GrantFiled: June 24, 2008Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Whan Cho, Kee-Han Uh, Sang-Woo Park, Sang-Jin Pak, Jae-Ik Lim, Bang-Sil Choi
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Patent number: 8004025Abstract: In a light sensing element having simplified structure, an array substrate having the light sensing element and an LCD apparatus having the light sensing element, the light sensing element includes a first electrode, a control electrode and a second electrode. An alternating bias voltage is applied to the first electrode. An off voltage is applied to the control electrode. The second electrode outputs a light-induced leakage current based on an externally provided light and the bias voltage. Therefore, the array substrate includes one light sensing switching element corresponding to one pixel so that structure of the array substrate is simplified and opening ratio is increased.Type: GrantFiled: April 5, 2010Date of Patent: August 23, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Jin Pak, Hyung-Guel Kim, Kee-Han Uh, Jong-Whan Cho, Jin Jeon, Young-Bae Jung
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Patent number: 7999264Abstract: A display device includes a first display panel including a common electrode disposed thereon, and a second display panel including; thin film transistors (“TFTs”) each including a gate electrode, a source electrode, and a drain electrode, a first passivation layer disposed on the source and drain electrodes, a second passivation layer disposed on the first passivation layer and including at least one sensing protrusion, pixel electrodes disposed on the second passivation layer and connected with the drain electrode, and at least one conductive member disposed on the sensing protrusion.Type: GrantFiled: January 31, 2007Date of Patent: August 16, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Whan Cho, Jeong-Geun Yoo, Byung-Woong Han
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Patent number: 7825894Abstract: An image display device includes a display surface through which input light is applied from an external object, a color filter having color pixels that are arranged to form a planar surface substantially parallel with the display surface, a substrate having light sensing portions each disposed to face corresponding one of the color pixels, in which the light sensing portion senses light provided through the corresponding color pixel, and a liquid crystal layer disposed between the color filter and the substrate. The substrate includes pixel portions arranged in a matrix form to display images. The light sensing portion includes switching transistors that are respectively controlled by the input light and a gate signal and respectively connected to sensing lines.Type: GrantFiled: June 29, 2007Date of Patent: November 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Jin Park, Jong-Whan Cho, Kee-Han Uh