Patents by Inventor Byeong-hwa Choi
Byeong-hwa 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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Patent number: 10636333Abstract: A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.Type: GrantFiled: May 29, 2019Date of Patent: April 28, 2020Assignees: SAMSUNG DISPLAY CO., LTD., UNIST(USAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Gyouhyung Kyung, Ja Eun Lee, Mu Gyeom Kim, Seung Bae Lee, Byeong Hwa Choi, Sungryul Park, Songil Lee, Jihhyeon Yi, Donghee Choi, Kyung Hyun Nam
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Patent number: 10517180Abstract: A display device includes a flexible display panel; a rolling driver including a rolling shaft connected to the flexible display panel and a rotation motor which rotates the rolling shaft; a housing which receives the flexible display panel in a rolled state, where a first opening is defined in the housing for unrolling and rolling the flexible display panel; a rolling stopper coupled to the flexible display panel; and a rolling controller which controls the rolling driver such that the rotation motor rotates in a clockwise or counterclockwise direction. The rolling controller rotates the rotating motor in a direction opposite to a rotating direction of the rotation motor for a previous rolling to unroll the flexible display panel. The rolling controller rotates the rotating motor in a same direction as a rotating direction of the rotation motor for a previous unrolling to roll the flexible display panel.Type: GrantFiled: January 30, 2018Date of Patent: December 24, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong Hwa Choi, Seung Bae Lee
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Publication number: 20190279539Abstract: A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.Type: ApplicationFiled: May 29, 2019Publication date: September 12, 2019Inventors: Gyouhyung KYUNG, Ja Eun LEE, Mu Gyeom KIM, Seung Bae LEE, Byeong Hwa CHOI, Sungryul PARK, Songil LEE, Jihhyeon YI, Donghee CHOI, Kyung Hyun NAM
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Patent number: 10394024Abstract: A display device is disclosed. The display device may include a display panel, a light blocking member, a distance sensing member, and a controlling member. The display panel may include a pixel region and a transmission region. The light blocking member may be disposed on a rear surface of the display panel and have an adjustable light transmittance. The distance sensing member may sense a viewing distance between a viewer and the display device. The controlling member may calculate a proper viewing distance range, may compare the viewing distance with the proper viewing distance range to generate a comparison result, and may adjust the light transmittance of the light blocking member based on the comparison result.Type: GrantFiled: May 25, 2017Date of Patent: August 27, 2019Assignee: Samsung Display Co., Ltd.Inventors: Byeong-Hwa Choi, Seung-Bae Lee
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Patent number: 10340325Abstract: A flexible display is disclosed. In one aspect, the flexible display includes a substrate and a plurality of first display layers formed on an upper surface of the substrate. The substrate includes a plurality of upper grooves, each of which defines a first opening in the upper surface and a plurality of lower grooves, each of which defines a second opening in a lower surface of the substrate. The upper grooves and the lower grooves are alternately arranged.Type: GrantFiled: September 15, 2016Date of Patent: July 2, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Un Byoll Ko, Byeong Hwa Choi
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Patent number: 10325530Abstract: A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.Type: GrantFiled: January 18, 2017Date of Patent: June 18, 2019Assignee: ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Gyouhyung Kyung, Ja Eun Lee, Mu Gyeom Kim, Seung Bae Lee, Byeong Hwa Choi, Sungryul Park, Songil Lee, Jihhyeon Yi, Donghee Choi, Kyung Hyun Nam
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Patent number: 10254866Abstract: A display device, including a first transparent magnetic layer; a display panel on the first transparent magnetic layer; an upper member on the display panel; and a second transparent magnetic layer on the upper member, the second transparent magnetic layer being penetrated by light.Type: GrantFiled: June 2, 2016Date of Patent: April 9, 2019Assignee: Samsung Display Co., Ltd.Inventors: Byeong-Hwa Choi, Seung-Bae Lee
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Patent number: 10219077Abstract: A display device includes a foldable display panel module to fold in a folding region, a folding sensor to sense a folding state of the foldable display panel module, a support on the foldable display panel module in the rigid region, a vibrator on the foldable display panel module in the folding region, and a vibration controller to control a vibration operation of the vibrator based on the folding state.Type: GrantFiled: July 25, 2017Date of Patent: February 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong-Hwa Choi, Seung-Bae Lee
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Publication number: 20190053387Abstract: A display device includes a flexible display panel; a rolling driver including a rolling shaft connected to the flexible display panel and a rotation motor which rotates the rolling shaft; a housing which receives the flexible display panel in a rolled state, where a first opening is defined in the housing for unrolling and rolling the flexible display panel; a rolling stopper coupled to the flexible display panel; and a rolling controller which controls the rolling driver such that the rotation motor rotates in a clockwise or counterclockwise direction. The rolling controller rotates the rotating motor in a direction opposite to a rotating direction of the rotation motor for a previous rolling to unroll the flexible display panel. The rolling controller rotates the rotating motor in a same direction as a rotating direction of the rotation motor for a previous unrolling to roll the flexible display panel.Type: ApplicationFiled: January 30, 2018Publication date: February 14, 2019Inventors: Byeong Hwa CHOI, Seung Bae LEE
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Patent number: 9961391Abstract: A multimedia device includes a distance sensor which measures a viewing distance, a controller which controls an output timing of a video signal and an output timing of an audio signal based on the viewing distance, an audio device which outputs a sound in response to the audio signal, and a display device which outputs an image in response to the video signal.Type: GrantFiled: October 21, 2015Date of Patent: May 1, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong-Hwa Choi, Seung-Bae Lee
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Patent number: 9946304Abstract: A flexible display device may include a display module unit configured to project an image, a frame, and a connecting unit. The frame supports the display module unit. The connecting unit is coupled to the display module unit and the frame, and is adjustable so as to allow an amount of curvature of the display module unit to be adjusted.Type: GrantFiled: September 22, 2017Date of Patent: April 17, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Byeong Hwa Choi, Seung Bae Lee
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Publication number: 20180035208Abstract: A display device includes a foldable display panel module to fold in a folding region, a folding sensor to sense a folding state of the foldable display panel module, a support on the foldable display panel module in the rigid region, a vibrator on the foldable display panel module in the folding region, and a vibration controller to control a vibration operation of the vibrator based on the folding state.Type: ApplicationFiled: July 25, 2017Publication date: February 1, 2018Inventors: Byeong-Hwa CHOI, Seung-Bae LEE
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Publication number: 20180011518Abstract: A flexible display device may include a display module unit configured to project an image, a frame, and a connecting unit. The frame supports the display module unit. The connecting unit is coupled to the display module unit and the frame, and is adjustable so as to allow an amount of curvature of the display module unit to be adjusted.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Byeong Hwa CHOI, Seung Bae LEE
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Publication number: 20170343804Abstract: A display device is disclosed. The display device may include a display panel, a light blocking member, a distance sensing member, and a controlling member. The display panel may include a pixel region and a transmission region. The light blocking member may be disposed on a rear surface of the display panel and have an adjustable light transmittance. The distance sensing member may sense a viewing distance between a viewer and the display device. The controlling member may calculate a proper viewing distance range, may compare the viewing distance with the proper viewing distance range to generate a comparison result, and may adjust the light transmittance of the light blocking member based on the comparison result.Type: ApplicationFiled: May 25, 2017Publication date: November 30, 2017Inventors: Byeong-Hwa CHOI, Seung-Bae LEE
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Publication number: 20170215272Abstract: A method for controlling a curvature of a display device as a control method of the curvature of the display device including a flexible display panel, a curvature change member, a controller, and a photo sensor includes: measuring an amount of a light incident to the flexible display panel by using a photo sensor; confirming a position of a part where the amount of the measured light is more than a predetermined reference value in the flexible display panel when the amount of the measured light is more than the reference value; and changing the curvature around the part where the amount of the measured light is more than the reference value in the flexible display panel by using the curvature change member.Type: ApplicationFiled: January 18, 2017Publication date: July 27, 2017Inventors: Gyouhyung KYUNG, Ja Eun LEE, Mu Gyeom KIM, Seung Bae LEE, Byeong Hwa CHOI, Sungryul PARK, Songil LEE, Jihhyeon YI, Donghee CHOI, Kyung Hyun NAM
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Patent number: 9692012Abstract: An organic light emitting display device includes a first substrate, a thin film transistor disposed on the first substrate, a first electrode electrically coupled to the thin film transistor, a pixel defining layer disposed on the first substrate and the first electrode to define unit pixels, a plurality of organic light emitting structure disposed on the first electrode, where in the organic light emitting structure includes a first organic light emitting structure, a second organic light emitting structure and a third light emitting structure, a second electrode which covers the first through third organic light emitting structures and the pixel defining layer; a metamaterial layer disposed on the second electrode corresponding to the organic light emitting structures, an encapsulation member which covers the second electrode and the metamaterial layer, and a second substrate disposed on the encapsulation member opposite to the first substrate.Type: GrantFiled: October 21, 2014Date of Patent: June 27, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eun-Jung Lee, Seung-Bae Lee, Byeong-Hwa Choi, Hak-Sun Kim
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Publication number: 20170153732Abstract: A display device, including a first transparent magnetic layer; a display panel on the first transparent magnetic layer; an upper member on the display panel; and a second transparent magnetic layer on the upper member, the second transparent magnetic layer being penetrated by light.Type: ApplicationFiled: June 2, 2016Publication date: June 1, 2017Inventors: Byeong-Hwa CHOI, Seung-Bae LEE
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Publication number: 20170110531Abstract: A flexible display is disclosed. In one aspect, the flexible display includes a substrate and a plurality of first display layers formed on an upper surface of the substrate. The substrate includes a plurality of upper grooves, each of which defines a first opening in the upper surface and a plurality of lower grooves, each of which defines a second opening in a lower surface of the substrate. The upper grooves and the lower grooves are alternately arranged.Type: ApplicationFiled: September 15, 2016Publication date: April 20, 2017Inventors: Un Byoll KO, Byeong Hwa CHOI
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Patent number: 9544774Abstract: There is provided a mobile terminal, including: a display unit; a taste providing unit providing a plurality of taste stimulations to a user through an electrical signal; and a control unit displaying a plurality of objects corresponding to the plurality of taste stimulations on the display unit, receiving an input selecting at least one of the objects from the user, and setting an arrangement of the taste stimulations corresponding to the selected object as an unlocking pattern.Type: GrantFiled: November 4, 2015Date of Patent: January 10, 2017Assignee: Samsung Display Co., Ltd.Inventors: Ja Eun Lee, Seung Bae Lee, Byeong Hwa Choi
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Publication number: 20160337855Abstract: There is provided a mobile terminal, including: a display unit; a taste providing unit providing a plurality of taste stimulations to a user through an electrical signal; and a control unit displaying a plurality of objects corresponding to the plurality of taste stimulations on the display unit, receiving an input selecting at least one of the objects from the user, and setting an arrangement of the taste stimulations corresponding to the selected object as an unlocking pattern.Type: ApplicationFiled: November 4, 2015Publication date: November 17, 2016Inventors: Ja Eun LEE, Seung Bae LEE, Byeong Hwa CHOI