Patents by Inventor Won-Kyu Kwak
Won-Kyu Kwak 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: 20240136188Abstract: One embodiment of the present invention provides a flame doping method. Specifically, the present invention provides a flame doping method, which does not significantly change crystallinity, does not damage a substrate even while applying a high temperature, is usable as a doping method suitable for mass production, is advantageous in a process difficulty and a cost compared to other doping processes (thermal diffusion and ion implantation), and has high process stability.Type: ApplicationFiled: October 1, 2023Publication date: April 25, 2024Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITYInventors: Jung Kyu KIM, Won SO, Jae Kyum KIM, Eu Jin KWAK
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Patent number: 11961475Abstract: Provided is a display device including first pixels positioned in a first area of a panel for receiving a first data signal from a data line in response to a first scan signal supplied from a first scan line and having an emission time controlled according to a first emission control signal, and second pixel positioned in a second area of the panel for receiving a second data signal from the data line in response to a second scan signal supplied from a second scan line and having an emission time controlled by a second emission control signal. The first pixels receive the first data signal after a first time after the first emission control signal is supplied, and the second pixels receive the second data signal after a second time, which is different from the first time, after the second emission control signal is supplied.Type: GrantFiled: February 17, 2023Date of Patent: April 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Min Ku Lee, Ji Hyun Ka, Won Kyu Kwak
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Publication number: 20240119904Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.Type: ApplicationFiled: December 19, 2023Publication date: April 11, 2024Inventors: Kwang-Min KIM, Seung-Kyu LEE, Won Kyu KWAK
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Publication number: 20240119900Abstract: A display device includes first emission areas, second emission areas, and third emission areas for respectively emitting colors of light, first pixel electrodes, second pixel electrodes, and third pixel electrodes overlapping the first emission areas, the second emission areas, and the third emission areas, respectively, first data lines respectively connected to the first pixel electrodes, and overlapping some of the first emission areas, second data lines respectively electrically connected to the second pixel electrodes, overlapping some others of the first emission areas, and being spaced apart from the first data lines, and a demultiplexer configured to divide and output corresponding portions of an input, which is received from one fan-out line, to the first data lines and the second data lines.Type: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventors: Ah Young KIM, Won Kyu KWAK, Kwang Sae LEE
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Publication number: 20240107869Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: ApplicationFiled: December 4, 2023Publication date: March 28, 2024Applicant: Samsung Display Co., Ltd.Inventors: Won-Kyu KWAK, Hwan-Soo JANG, Jae-Yong LEE
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Patent number: 11928994Abstract: A display device includes a substrate including a display area and a non-display area disposed near the display area, a plurality of pixels disposed in the display area, a plurality of signal lines disposed on the substrate and connected to the pixels, and a pad portion disposed in the non-display area and including a plurality of pads. The signal lines include a first crack detecting line connected to a first test voltage pad and a first pad at a first node, connected to a second pad at a second node, and extending around the non-display area between the first node and the second node, as well as a first data line including a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.Type: GrantFiled: June 4, 2019Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Hwa Young Song, Ki Myeong Eom
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Patent number: 11928297Abstract: A touch screen panel includes: a flat panel display including an upper substrate, a lower substrate, and pixels arranged on a display region of the lower substrate in a stripe arrangement; first sensing cells arranged in a first direction on the upper substrate and second sensing cells arranged in a second direction on the upper substrate; first connection patterns electrically connecting adjacent ones of the first sensing cells to each other in the first direction, and second connection patterns electrically connecting adjacent ones of the second sensing cells to each other in the second direction, wherein at least one of the first connection patterns and the second connection patterns is inclined so that it partially overlaps with the pixels.Type: GrantFiled: March 13, 2023Date of Patent: March 12, 2024Assignee: Samsung Display Co., Ltd.Inventors: Do-Youb Kim, Won-Kyu Kwak, Brent Jang
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Patent number: 11925080Abstract: A display device includes a substrate including a display area and a non-display area, a plurality of pixels disposed in the display area, a common voltage supply wiring overlapping the non-display area and disposed on the substrate, a driving voltage supply wiring overlapping the non-display area and disposed on the substrate, and a data voltage supply wiring overlapping the non-display area and electrically connected to the plurality of pixels, where at least one of the common voltage supply wiring and the driving voltage supply wiring includes a chamfered area, the data voltage supply wiring includes a first data voltage supply wiring, a second data voltage supply wiring, and a third data voltage supply wiring, and the first to third data voltage supply wirings are disposed in different layers.Type: GrantFiled: July 20, 2021Date of Patent: March 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Ho Choi, Won Kyu Kwak, Chang Soo Pyon, Seung Gyu Tae
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Patent number: 11916087Abstract: An array substrate includes a substrate, a barrier layer disposed on the substrate, a buffer layer disposed on the barrier layer, a first insulating layer disposed on the buffer layer, a second insulating layer disposed on the first insulating layer, a plurality of wiring patterns disposed between the first insulating layer and the second insulating layer and/or on the second insulating layer. In addition, the wiring patterns are separated from each other, and extend toward a side of the substrate. The array substrate further includes a recess pattern disposed adjacent the wiring patterns and recessed from a top surface of the second insulating layer to expose at least part of a top surface of the substrate, and an organic insulating layer disposed on the second insulating layer and exposing at least part of a portion of the top surface of the substrate which is exposed by the recess pattern.Type: GrantFiled: January 31, 2022Date of Patent: February 27, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Won Kyu Kwak
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Patent number: 11910677Abstract: A display device may include a substrate, pixels, a first common voltage line, an outer common voltage trunk line, a first outer common voltage line, and a second outer common voltage line. The substrate may include a display area and a non-display area. The pixels may be disposed on the display area. The first common voltage line may be at least partially disposed on the display area. The outer common voltage trunk line may be disposed on the non-display area, may be electrically connected through the first common voltage line to the pixels, and may include a groove. The first outer common voltage line may protrude from the outer common voltage trunk line. The second outer common voltage line may protrude from the outer common voltage trunk line. The groove may be disposed between the second outer common voltage line and the first common voltage line.Type: GrantFiled: August 19, 2022Date of Patent: February 20, 2024Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Kim, Won Kyu Kwak
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Patent number: 11893941Abstract: A display device is provided. The display device may include a substrate, a plurality of pixels, a first data line, a second data line, a defect sensing line, a first input pad, and a static electricity discharge element. The substrate may include a display area and a peripheral area neighboring each other. The plurality of pixels may be positioned on the display area and may include a first pixel and a second pixel. The first data line may be electrically connected to the first pixel. The second data line may be electrically connected to the second pixel and may be electrically isolated from the first data line. The defect sensing line may be positioned on the peripheral area. The first input pad may be electrically connected to the defect sensing line. The static electricity discharge element may be electrically connected through the defect sensing line to the first input pad.Type: GrantFiled: January 30, 2023Date of Patent: February 6, 2024Assignee: Samsung Display Co., Ltd.Inventors: Kwang-Min Kim, Seung-Kyu Lee, Won Kyu Kwak
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Patent number: 11889706Abstract: A display device includes a substrate, pixels each including at least one transistor, a storage capacitor connected to the at least one transistor, and a light emitting element connected to the at least one transistor, scan lines connected to each of the pixels, a data line connected to each of the pixels, and a power line supplying a first power voltage to the light emitting element. The power line includes a first conductive pattern that extends in a first direction, and is provided on a first insulating interlayer, a second conductive pattern that extends in the first direction, is provided on a second insulating interlayer, and is connected to the first conductive pattern through a first contact hole, and a third conductive pattern that extends in a second direction, is provided on a third insulating interlayer, and is connected to the second conductive pattern through a second contact hole.Type: GrantFiled: September 12, 2019Date of Patent: January 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Hoon Kim, Won Kyu Kwak, Mi Hae Kim, Hyun Chol Bang, Ki Myeong Eom, Jae Sic Lee
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Patent number: 11881131Abstract: A display device includes a substrate including a display area and a non-display area disposed near the display area, a plurality of pixels disposed in the display area, a plurality of signal lines disposed on the substrate and connected to the pixels, and a pad portion disposed in the non-display area and including a plurality of pads. The signal lines include a first crack detecting line connected to a first test voltage pad and a first pad at a first node, connected to a second pad at a second node, and extending around the non-display area between the first node and the second node, as well as a first data line including a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.Type: GrantFiled: June 4, 2019Date of Patent: January 23, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Hwa Young Song, Ki Myeong Eom
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Patent number: 11881148Abstract: A display device includes pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan linesType: GrantFiled: September 26, 2022Date of Patent: January 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Kyong Hwan Oh, Ji Hyun Ka, Ki Myeong Eom, Hai Jung In, Jin Jeon, Won Kyu Kwak, Hyun Lee, Hwan Soo Jang, Jin Tae Jeong
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Patent number: 11864454Abstract: A display device includes a display area, a test pad, a plurality of first test transistors, and at least one outline. The display area includes pixels coupled to data lines and scan lines. The test pad receives a test signal. The first test transistors are coupled between the data lines of the display area and the test pad. The at least one outline is coupled between one of the first test transistors and the test pad. The at least one outline is located in a non-display area outside the display area.Type: GrantFiled: May 11, 2022Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Won-Kyu Kwak, Hwan-Soo Jang, Jae-Yong Lee
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Patent number: 11862063Abstract: A display substrate and a display device including the display substrate are disclosed. In one aspect, the display substrate includes a plurality of pixels formed in a substantially circular pixel area and a driving circuit formed in a peripheral area surrounding the pixel area and configured to drive the pixels. A boundary is formed between the pixel area and the peripheral area, and the boundary is substantially concentric with respect to an arc defining the substantially circular pixel area. The driving circuit comprises a conductive pattern having a first side which extends in a peripheral direction crossing the boundary.Type: GrantFiled: January 10, 2023Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hye-Jin Shin, Won-Kyu Kwak, Kwang-Min Kim
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Publication number: 20230419900Abstract: Provided is a display device including first pixels positioned in a first area of a panel for receiving a first data signal from a data line in response to a first scan signal supplied from a first scan line and having an emission time controlled according to a first emission control signal, and second pixel positioned in a second area of the panel for receiving a second data signal from the data line in response to a second scan signal supplied from a second scan line and having an emission time controlled by a second emission control signal. The first pixels receive the first data signal after a first time after the first emission control signal is supplied, and the second pixels receive the second data signal after a second time, which is different from the first time, after the second emission control signal is supplied.Type: ApplicationFiled: February 17, 2023Publication date: December 28, 2023Inventors: Min Ku LEE, Ji Hyun KA, Won Kyu KWAK
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Publication number: 20230397456Abstract: A display device including a display panel including a plurality of transistors and displaying an image on a front surface thereof; and a sensing module on a rear surface of the display panel, wherein the display panel includes a first region that overlaps the sensing module and a second region that does not overlap the sensing module, a W/L ratio of one of the transistors in the first region is greater than a W/L ratio of another of the transistors in the second region, the W/L ratio being obtained by dividing a width of a channel of the transistor by a length of the channel.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Applicant: Samsung Display Co., Ltd.Inventors: Jin Woo PARK, Won Kyu KWAK, Dong Wook KIM, Hyun-Chol BANG
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Publication number: 20230389385Abstract: A display device includes a substrate having a first region in which an image is displayed, a second region in which an image is not displayed, and a bending region connecting the first region and the second region. The bending region is configured to bend along a bending axis which extends in a first direction. A plurality of pad terminals is disposed within the second region. A first width of the bending region, measured along the first direction, is narrower than a second width of the second region, measured along the first direction.Type: ApplicationFiled: May 23, 2023Publication date: November 30, 2023Inventors: TAE HOON KWON, WON KYU KWAK, KWANG-MIN KIM, HEY JIN SHIN, SEUNG-KYU LEE
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Patent number: RE49891Abstract: A design for an organic light-emitting display device that increases capacitor capacity and increases aperture ratio by forming an initializing voltage electrode on a different layer than an electrode of the capacitor and forming only one via hole for an entire set of three sub-pixels. One of the source electrodes and the drain electrodes of switching transistors for the three sub-pixels are formed in common, along with the gate electrodes of the switching transistors.Type: GrantFiled: August 23, 2021Date of Patent: March 26, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hye-Jin Shin, Won-Kyu Kwak