Patents by Inventor Won Sik Oh
Won Sik 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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Patent number: 11403997Abstract: A pixel includes first and second sub-emission areas enclosed by a bank; a first light source unit disposed in the first sub-emission area, and including at least one first light emitting element connected between at least one first split electrode and a second power supply; a second light source unit disposed in the second sub-emission area, and including at least one second light emitting element connected between at least one second split electrode and the second power supply; a first driving circuit connected between a first power supply and the at least one first split electrode, and supplying a first driving current to the first light source unit in response to a first data signal; and a second driving circuit connected between the first power supply and the second split electrode, and supplying a second driving current to the second light source unit in response to a second data signal.Type: GrantFiled: April 11, 2019Date of Patent: August 2, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Oh Kwag, Won Sik Oh, Keun Kyu Song, Sung-Chan Jo, Hyun Min Cho
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Patent number: 11373587Abstract: A pixel includes first and second sub-emission areas enclosed by a bank; a first light source unit disposed in the first sub-emission area, and including at least one first light emitting element connected between at least one first split electrode and a second power supply; a second light source unit disposed in the second sub-emission area, and including at least one second light emitting element connected between at least one second split electrode and the second power supply; a first driving circuit connected between a first power supply and the at least one first split electrode, and supplying a first driving current to the first light source unit in response to a first data signal; and a second driving circuit connected between the first power supply and the second split electrode, and supplying a second driving current to the second light source unit in response to a second data signal.Type: GrantFiled: April 11, 2019Date of Patent: June 28, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Oh Kwag, Won Sik Oh, Keun Kyu Song, Sung-Chan Jo, Hyun Min Cho
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Publication number: 20220181522Abstract: A display device may include: a substrate including a display area and a non-display area; and at least one pixel disposed in the display area, and comprising at least one pixel including an emission area that emits light. The at least one pixel may include: at least one sub-electrode extending in a direction on the substrate; at least one branch electrode extending in a direction and spaced apart from the sub-electrode; a first insulating layer disposed on the at least one sub-electrode and the at least one branch electrode; first electrodes disposed on the first insulating layer and electrically connected with the at least one sub-electrode; second electrodes disposed on the first insulating layer and electrically connected with the at least one branch electrode; and at least one light emitting element aligned between at least one of the first electrodes and at least one of the second electrodes.Type: ApplicationFiled: March 3, 2020Publication date: June 9, 2022Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Su Mi MOON, Jae Woong KANG, Sin Chul KANG, Won Sik OH, Yo Han LEE
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Publication number: 20220149079Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode and a second electrode spaced apart from each other; at least one intermediate electrode disposed between the first electrode and the second electrode; a plurality of light emitting elements electrically connected between a pair of adjacent electrodes of a plurality of electrodes including the first electrode, the second electrode, and the at least one intermediate electrode; and a plurality of repair patterns overlapping and disposed between a pair of adjacent electrodes of the plurality of electrodes.Type: ApplicationFiled: August 9, 2019Publication date: May 12, 2022Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sin Chul KANG, Won Sik OH
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Publication number: 20220140019Abstract: A display device includes a first substrate including a plurality of subpixels; a first electrode and a second electrode on the first substrate in each of the plurality of subpixels and spaced apart from each other; a plurality of light emitting elements having both ends on the first electrode and the second electrode, respectively; and a color control layer on the plurality of light emitting elements. The plurality of subpixels includes a first subpixel to display a first color and a second subpixel to display a second color different from the first color, and the plurality of light emitting elements includes first light emitting elements in the first subpixel and to emit light of a third color and second light emitting elements in the second subpixel and to emit light of the second color, wherein the third color is different from the first color and the second color.Type: ApplicationFiled: October 27, 2021Publication date: May 5, 2022Inventors: Hoo Keun PARK, Seung Geun LEE, Won Sik OH, Byung Ju LEE, Seung A LEE
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Publication number: 20220139319Abstract: A display device may include a first power line; a second power line; a data line that transmits a data signal; a scan line that transmits a scan signal; and pixels electrically connected to the first power line, the second power line, the data line, and the scan line. Each of the pixels may include light emitting elements electrically connected between the first power line and the second power line; and a first transistor that provides driving current to the light emitting elements in response to the data signal.Type: ApplicationFiled: December 30, 2019Publication date: May 5, 2022Applicant: Samsung Display Co., LTD.Inventors: Won Sik OH, Hyun Min CHO, Sin Chul KANG, Dae Hyun KIM
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Publication number: 20220123026Abstract: A display device may include a pixel disposed in a display area. The pixel may include: a first electrode extending in a first direction; a second electrode including a first electrode part spaced apart from the first electrode in a direction intersecting with the first direction and extending in the first direction, a second electrode part extending from the first electrode part in a second direction, and a third electrode part extending form the second electrode part in the first direction; a third electrode including at least one area spaced apart from the third electrode part in the direction intersecting with the first direction and extending in the first direction; a first light emitting element connected between the first electrode and the second electrode; and a second light emitting element connected between the second electrode and the third electrode.Type: ApplicationFiled: July 9, 2019Publication date: April 21, 2022Inventors: Won Sik OH, Yo Han LEE, Hyun Min CHO, Jong Hyuk KANG, Dae Hyun KIM
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Publication number: 20220109023Abstract: A display device includes a first electrode and a second electrode spaced apart from each other and disposed on a substrate, a light emitting element extending in a first direction and including a first end disposed on the first electrode in the first direction and a second end disposed on the second electrode in the first direction. A diameter of the first end of the light emitting element is different from a diameter of the second end of the light emitting element. The light emitting element includes a first semiconductor layer, a second semiconductor layer spaced apart from the first semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. The active layer is adjacent to one of the first end and the second end of the light emitting element, which has a larger diameter than a diameter of the other.Type: ApplicationFiled: September 14, 2021Publication date: April 7, 2022Applicant: Samsung Display Co., LTD.Inventors: Byung Ju LEE, Seung Geun LEE, Hoo Keun PARK, Won Sik OH, Seung A. LEE
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Publication number: 20220069003Abstract: A display device includes a pixel disposed in a display area. The pixel includes first and second sub-areas; first and second electrodes of a first stage disposed in the first sub-area; first light emitting elements disposed between the first and second electrodes; first and second contact electrodes of the first stage to electrically connect the first light emitting elements between the first and second electrodes; first and second electrodes of a second stage disposed in the second sub-area; second light emitting elements disposed between the first and second electrodes of the second stage; first and second contact electrodes of the second stage to electrically connect the second light emitting elements between the first and second electrodes of the second stage; and a connection electrode to electrically connect the second contact electrode of the first stage with the first contact electrode of the second stage.Type: ApplicationFiled: July 5, 2019Publication date: March 3, 2022Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Yo Han LEE, Sin Chul KANG, Jae Woong KANG, Su Mi MOON, Won Sik OH
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Publication number: 20220069004Abstract: A display device includes a first substrate including a first area and a second area located at the edge of the first area. A first electrode and a second electrode are on the first substrate and spaced from each other. Light emitting elements are located between the first electrode and the second electrode in the first area. A first conductive layer is on the first electrode in the second area. A pixel circuit layer is on the first conductive layer in the second area, and includes a transistor connected to the first conductive layer. A second substrate is on the pixel circuit layer.Type: ApplicationFiled: July 9, 2019Publication date: March 3, 2022Inventors: Sin Chul KANG, Won Sik OH, Jae Woong KANG, Su Mi MOON, Yo Han LEE
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Publication number: 20220069164Abstract: A light-emitting element includes a first end portion and a second end portion disposed in a length direction of the light-emitting element, a first semiconductor layer disposed at the first end portion, an active layer disposed on the first semiconductor layer, a second semiconductor layer disposed on the active layer, a first barrier layer disposed between the active layer and the first semiconductor layer and including a first region and a second region, and an insulating film that surrounds an outer circumferential surface of each of the first semiconductor layer, the active layer, the first barrier layer, and the second semiconductor layer. The first region includes a semiconductor layer having an aluminum composition higher than an aluminum composition of the first semiconductor layer, the active layer, and the second semiconductor layer. The second region includes an oxide layer.Type: ApplicationFiled: May 21, 2021Publication date: March 3, 2022Applicant: Samsung Display Co., LTD.Inventors: Seung Geun LEE, Byung Ju LEE, Won Sik OH, Seung A LEE
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Publication number: 20210375194Abstract: A pixel includes first and second sub-emission areas enclosed by a bank; a first light source unit disposed in the first sub-emission area, and including at least one first light emitting element connected between at least one first split electrode and a second power supply; a second light source unit disposed in the second sub-emission area, and including at least one second light emitting element connected between at least one second split electrode and the second power supply; a first driving circuit connected between a first power supply and the at least one first split electrode, and supplying a first driving current to the first light source unit in response to a first data signal; and a second driving circuit connected between the first power supply and the second split electrode, and supplying a second driving current to the second light source unit in response to a second data signal.Type: ApplicationFiled: April 11, 2019Publication date: December 2, 2021Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Oh KWAG, Won Sik OH, Keun Kyu SONG, Sung-Chan JO, Hyun Min CHO
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Publication number: 20210358393Abstract: A method for manufacturing a display device including a substrate including a display area and a non-display area located outside the display area, the display area including pixel areas, is provided. First switching elements are formed in the pixel areas, respectively, and a circuit element layer that includes reference voltage wire in the non-display area and electrically connected to the first switching elements is formed. Pixel electrodes that include first pixel electrodes in the pixel areas on the circuit element layer, respectively, and electrically connected through the first switching elements to the reference voltage wire, and second pixel electrodes facing the first pixel electrodes, are formed. A plurality of light emitting elements are arranged between the first pixel electrodes and the second pixel electrodes.Type: ApplicationFiled: July 8, 2019Publication date: November 18, 2021Inventors: Sin Chul KANG, Won Sik OH, Yo Han LEE, Hee Keun LEE, Hyun Min CHO
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Publication number: 20210335168Abstract: A pixel comprising a light emitting unit comprising at least one light emitting element; a pixel circuit for supplying current to the light emitting in response to a data signal; a sensing transistor electrically connected between a data line and a first node that is a common node of the light emitting unit and the pixel circuit; and a control transistor electrically connected between a scanning line and a gate electrode of the sensing transistor.Type: ApplicationFiled: February 20, 2019Publication date: October 28, 2021Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Yo Han LEE, Sin Chul KANG, Su Mi MOON, Won Sik OH
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Publication number: 20210288220Abstract: A display device includes a first electrode stem and a second electrode stem extended in a first direction and spaced from each other, a first electrode branch branching off from the first electrode stem and extended in a second direction, a second electrode branch branching off from the second electrode stem and extended in the second direction, a third electrode between the first electrode branch and the second electrode branch and one or more light-emitting elements between the first electrode branch and the third electrode and between the third electrode and the second electrode branch, wherein the third electrode is extended in the second direction, and both ends of the third electrode in the second direction are spaced from the first electrode stem and from the second electrode stem, respectively.Type: ApplicationFiled: December 13, 2018Publication date: September 16, 2021Inventors: Won Sik OH, Sin Chul KANG, Dae Hyun KIM, Hyun Min CHO
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Patent number: 10510306Abstract: A display panel includes a plurality of gate lines extending in a first direction and including first and second gate lines adjacent to each other. A plurality of data lines extends in a second direction that crosses the first direction and includes first and second data lines adjacent to each other. A plurality of sub-pixels are arranged in a matrix configuration, each row of the matrix being disposed between two adjacent gate lines, from among the plurality of gate lines, each column of the matrix being disposed between two adjacent data lines, from among the plurality of data lines. The plurality of sub-pixels includes first column sub-pixels disposed on a first column of the matrix and connected to the first data line. Second column sub-pixels are disposed on a second column of the matrix and are connected to the second data line, the second column being adjacent to the first column.Type: GrantFiled: December 21, 2018Date of Patent: December 17, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won-Sik Oh, Tae-Jin Kim, Kuk-Hwan Ahn
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Publication number: 20190122621Abstract: A display panel includes a plurality of gate lines extending in a first direction and including first and second gate lines adjacent to each other. A plurality of data lines extends in a second direction that crosses the first direction and includes first and second data lines adjacent to each other. A plurality of sub-pixels are arranged in a matrix configuration, each row of the matrix being disposed between two adjacent gate lines, from among the plurality of gate lines, each column of the matrix being disposed between two adjacent data lines, from among the plurality of data lines. The plurality of sub-pixels includes first column sub-pixels disposed on a first column of the matrix and connected to the first data line. Second column sub-pixels are disposed on a second column of the matrix and are connected to the second data line, the second column being adjacent to the first column.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Inventors: WON-SIK OH, TAE-JIN KIM, KUK-HWAN AHN
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Publication number: 20190064600Abstract: A color conversion display panel includes: a color conversion layer provided on a substrate and including a semiconductor nanocrystal and a scatterer; and a transmission layer provided on the substrate, wherein the semiconductor nanocrystal is included at greater than 30 wt % of an entire content of the color conversion layer, and the scatterer is included at equal to or less than 12 wt % of the entire content of the color conversion layer.Type: ApplicationFiled: February 21, 2018Publication date: February 28, 2019Inventors: Won Woo JANG, Jin Ho PARK, Won Sik OH, Hyang-A PARK, Seung In BAEK, Seoung Bum PYOUN, Jae Min HA, Hyun Ji HA
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Patent number: 10186213Abstract: A display panel includes a plurality of gate lines extending in a first direction and including first and second gate lines adjacent to each other. A plurality of data lines extends in a second direction that crosses the first direction and includes first and second data lines adjacent to each other. A plurality of sub-pixels are arranged in a matrix configuration, each row of the matrix being disposed between two adjacent gate lines, from among the plurality of gate lines, each column of the matrix being disposed between two adjacent data lines, from among the plurality of data lines. The plurality of sub-pixels includes first column sub-pixels disposed on a first column of the matrix and connected to the first data line. Second column sub-pixels are disposed on a second column of the matrix and are connected to the second data line, the second column being adjacent to the first column.Type: GrantFiled: September 16, 2015Date of Patent: January 22, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won-Sik Oh, Tae-Jin Kim, Kuk-Hwan Ahn
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Patent number: 9978302Abstract: A liquid crystal display includes: a liquid crystal panel comprising a plurality of pixel areas, each having a plurality of pixels; and a signal controller configured to receive an original image signal and to generate a target image signal corresponding to the original image signal by using a kickback voltage at each gray level in the original image signal, wherein the signal controller comprises a dithering unit configured to generate a corrected image signal based on dithering patterns corresponding to the target image signal.Type: GrantFiled: July 16, 2014Date of Patent: May 22, 2018Assignee: Samsung Display Co., Ltd.Inventors: Gi Geun Kim, Hyun Sik Hwang, Won Sik Oh, Nam Gon Choi, Yong Jun Jang