Patents by Inventor Kyung Bae Kim
Kyung Bae Kim 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: 11127343Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.Type: GrantFiled: January 8, 2020Date of Patent: September 21, 2021Assignee: Samsung Display Co., Ltd.Inventors: Min Jae Jeong, Kyung Bae Kim, Chong Chul Chai, Kyung Hoon Chung
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Publication number: 20210272943Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.Type: ApplicationFiled: September 30, 2020Publication date: September 2, 2021Inventors: Ji Hye LEE, Kyung Bae KIM, Mee Hye JUNG
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Publication number: 20210265329Abstract: A display device includes: a base layer having a first area and a second area extending at least partially around a periphery of the first area; conductive patterns in the second area; an insulating layer over the conductive patterns in the second area; a first electrode and a second electrode on the insulating layer; and a plurality of light emitting elements between the first electrode and the second electrode in the first area and being connected to the first electrode and the second electrode. The first electrode and the second electrode are spaced apart from each other in the first area and are respectively connected to portions of the conductive patterns through contact openings penetrating the insulating layer. The light emitting elements do not overlap the conductive patterns and the insulating layer.Type: ApplicationFiled: August 26, 2020Publication date: August 26, 2021Inventors: Min Kyu WOO, Kyung Bae KIM, Chong Chul CHAI
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Publication number: 20210249392Abstract: A display device includes a substrate. A first electrode, a second electrode, and a third electrode are on the substrate, and are sequentially arranged along a first direction. A first light emitting element is located between the first electrode and the second electrode. A second light emitting element is located between the second electrode and the third electrode. A first contact electrode overlaps the first electrode and one end of the first light emitting element, and is in contact with the first electrode and the one end of the first light emitting element. A second contact electrode overlaps and is in contact with the other end of the first light emitting element. A third contact electrode overlaps and is in contact with the second electrode and the other end of the second light emitting element. The second contact electrode extends while detouring the third contact electrode.Type: ApplicationFiled: September 15, 2020Publication date: August 12, 2021Inventors: Min Kyu WOO, Kyung Bae KIM, Jin Yeong KIM, Chong Chul CHAI
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Publication number: 20210249576Abstract: A display device includes a substrate including a plurality of pixels; an electrode part including a first electrode in each pixel of the plurality of pixels on the substrate and a second electrode spaced apart from the first electrode on a same plane; a plurality of light emitting devices spaced apart from each other between the first electrode and the second electrode; a power line part including a first power line between the substrate and the first electrode, the first power line to receive a first driving power source, and a second power line between the substrate and the second electrode, the second power line to receive a second driving power source; and a shielding electrode line between the power line part and the first electrode, the shielding electrode line to receive the first driving power source.Type: ApplicationFiled: April 26, 2021Publication date: August 12, 2021Applicant: Samsung Display Co., Ltd.Inventors: Kyung Bae KIM, Min Jae JEONG, Chong Chul CHAI
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Publication number: 20210231993Abstract: A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.Type: ApplicationFiled: April 15, 2021Publication date: July 29, 2021Inventors: JUN KI JEONG, Hyun Joon KIM, Kyung Bae KIM, Kyung Hoon CHUNG, Chong Chul CHAI
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Patent number: 11073718Abstract: An exemplary embodiment of the present disclosure provides a color conversion display panel including: a light blocking member and a blue light cutting filter disposed on a color conversion substrate; a first color conversion layer and a second color conversion layer disposed on the blue light cutting filter to include nanocrystals; and a transmission layer disposed on the color conversion substrate, wherein the blue light cutting filter overlaps side surfaces of the first color conversion layer, the second color conversion layer, and the transmission layer.Type: GrantFiled: January 3, 2018Date of Patent: July 27, 2021Inventors: Kyung-Bae Kim, Il Gon Kim, Hyun Joon Kim
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Patent number: 11069726Abstract: A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.Type: GrantFiled: January 30, 2019Date of Patent: July 20, 2021Assignee: Samsung Display Co., Ltd.Inventors: Hyun Joon Kim, Kyung Bae Kim, Kyung Hoon Chung, Mee Hye Jung
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Publication number: 20210143137Abstract: A display device includes a substrate including a display area including pixel areas and a non-display area adjacent to the display area; and a pixel disposed in each of the pixel areas. The pixel includes a sub-electrode, a first conductive line, and a second conductive line on the substrate; a first insulating layer over the sub-electrode and the first and second conductive lines; first to fourth electrodes on the first insulating layer; a second insulating layer over the first and second electrodes to completely overlap the first and second electrodes, the second insulating layer exposing the third and fourth electrodes; light emitting elements between the first and second electrodes; a first contact electrode on the first electrode; and a second contact electrode on the second electrode.Type: ApplicationFiled: August 25, 2020Publication date: May 13, 2021Applicant: Samsung Display Co., LTD.Inventors: Kyung Bae KIM, Dong Hwan KIM, Mee Hye JUNG, Jun Ki JEONG
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Patent number: 10991865Abstract: A display device includes a substrate including a plurality of pixels; an electrode part including a first electrode in each pixel of the plurality of pixels on the substrate and a second electrode spaced apart from the first electrode on a same plane; a plurality of light emitting devices spaced apart from each other between the first electrode and the second electrode; a power line part including a first power line between the substrate and the first electrode, the first power line to receive a first driving power source, and a second power line between the substrate and the second electrode, the second power line to receive a second driving power source; and a shielding electrode line between the power line part and the first electrode, the shielding electrode line to receive the first driving power source.Type: GrantFiled: August 22, 2019Date of Patent: April 27, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Bae Kim, Min Jae Jeong, Chong Chul Chai
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Patent number: 10983381Abstract: A tiled display device includes an array of a plurality of display panels. Each of the plurality of display panels includes a plurality of pixels constituting a plurality of pixel rows and a plurality of pixel columns, a data distributor disposed between a first pixel of a first pixel row among the plurality of pixel rows and a second pixel of the first pixel row adjacent to the first pixel in a first direction, and a scan driver disposed between the second pixel and a third pixel adjacent to the second pixel in the first direction.Type: GrantFiled: August 7, 2019Date of Patent: April 20, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun Ki Jeong, Hyun Joon Kim, Kyung Bae Kim, Kyung Hoon Chung, Chong Chul Chai
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Publication number: 20210057623Abstract: A display device includes: a substrate including first areas and second areas alternately arranged in a first direction in a plane view; a first electrode and a second electrode on the substrate and spaced apart from each other in a second direction crossing the first direction; a first insulation layer on the substrate and covering the first electrode and the second electrode; and a light emitting element on the first insulation layer and electrically connected to the first electrode and the second electrode, the first insulation layer having a first thickness in the first area and a second thickness thicker than the first thickness in the second area, and the light emitting element being located in the first area.Type: ApplicationFiled: August 20, 2020Publication date: February 25, 2021Inventors: Kyung Bae KIM, Ji Eun LEE, Chong Chul CHAI
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Patent number: 10923010Abstract: A display device includes a display panel including a first display region in which a plurality of first data lines are positioned and a second display region adjacent to the first display region in which a plurality of second data lines are positioned, a first data driver and a second data driver in a non-display region of the display panel, a plurality of first fan-out lines connected to the first data driver and including a plurality of 1_1-th fan-out lines connected to the plurality of first data lines and a plurality of 1_2-th fan-out lines connected to the plurality of second data lines, and a plurality of second fan-out lines connected to the second data driver and including a plurality of 2_1-th fan-out lines connected to the plurality of second data lines and a plurality of 2_2-th fan-out lines connected to the plurality of first data lines.Type: GrantFiled: October 14, 2019Date of Patent: February 16, 2021Assignee: Samsung Display Co., Ltd.Inventors: Won Tae Kim, Kyung Bae Kim, Ji Ye Lee
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Patent number: 10878754Abstract: An organic light emitting display device includes a display panel including a plurality of pixels and a panel driver configured to generate driving signals to drive the plurality of pixels. Each of the plurality of pixels includes a first transistor, a second transistor, a storage capacitor, a third transistor, a maintain capacitor, a fourth transistor, a fifth transistor, and an organic light emitting diode. The maintain capacitor is configured to maintain a gate voltage of the first transistor during an emission period of the pixels.Type: GrantFiled: March 20, 2019Date of Patent: December 29, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gun Hee Kim, Kyung-Bae Kim, Joohee Jeon
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Publication number: 20200403030Abstract: A display device is provided. The display device includes a first electrode including a first electrode surface extending in a first direction and a second electrode surface connected to one end of the first electrode surface and extending in a second direction that is different from the first direction, a second electrode including a third electrode surface extending in the first direction and spaced apart from the first electrode surface and facing the first electrode surface, and a fourth electrode surface extending in the second direction and spaced apart from the second electrode surface and facing the second electrode surface, and at least one light emitting element between the first electrode and the second electrode and including a first light emitting element between the first electrode surface and the third electrode surface and a second light emitting element between the second electrode surface and the fourth electrode surface.Type: ApplicationFiled: June 15, 2020Publication date: December 24, 2020Inventors: Yu Jin LEE, Kyung Bae KIM, Ji Hye LEE, Chong Chul CHAI
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Publication number: 20200403129Abstract: A display device includes: a base layer; a pixel circuit layer on the base layer; and a display element layer on the pixel circuit layer. The pixel circuit layer includes a lens pattern at a recess between the display element layer and the base layer, the display element layer includes a light emitting element, and at least a portion of the light emitting element overlaps with the lens pattern.Type: ApplicationFiled: January 14, 2020Publication date: December 24, 2020Inventors: Ji Hye LEE, Kyung Bae KIM, Yu Jin LEE, Chong Chul CHAI
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Publication number: 20200403131Abstract: A display device includes a substrate and pixels. The substrate includes: a display area including pixel areas, each including a first area and a second area; and a non-display area enclosing at least one side of the display area. The pixels are disposed on the pixel areas, each pixel including light emitting elements. Each pixel further includes: a pixel circuit part disposed on the first area and including at least one transistor and at least one capacitor; and a display element part disposed on the second area and including an emission area to emit light. Each of the pixel circuit part and the display element part has a multi-layer structure including one or more conductive layers and one or more insulating layers. At least one layer of the pixel circuit part and at least one layer of the display element part are disposed in a same layer.Type: ApplicationFiled: June 2, 2020Publication date: December 24, 2020Inventors: Kyung Bae Kim, Mee Hye Jung, Chong Chul Chai
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Publication number: 20200301179Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.Type: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Inventors: Wan-Soon IM, MinWook PARK, SuWan WOO, Eun-Kil PARK, Jeongman Son, Changil TAE, Kee-Bum PARK, Kyung-Bae KIM, JE HYEONG PARK, JOOHWAN PARK, YU DEOK SEO, Seungho YANG, SEJOON OH, HEEHWAN LEE
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Publication number: 20200302840Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.Type: ApplicationFiled: March 17, 2020Publication date: September 24, 2020Inventors: Hyun Joon KIM, Jun Ki JEONG, Kyung Hoon CHUNG, Kyung Bae KIM, Seung Chan LEE, Chong Chul CHAI
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Publication number: 20200273397Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.Type: ApplicationFiled: January 8, 2020Publication date: August 27, 2020Inventors: Min Jae JEONG, Kyung Bae KIM, Chong Chul CHAI, Kyung Hoon CHUNG