Patents by Inventor Jong-woong Chang
Jong-woong Chang 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: 20240088163Abstract: A display device includes a pixel component including scan lines, data lines, and pixels electrically connected to the scan lines and the data lines, and defining pixel columns and pixel rows, a data driver disposed on a side of the pixel component, and a scan driver disposed on the side of the pixel component. The pixel component includes sub-scan lines, and dummy lines. Each scan line may be electrically connected to the sub-scan lines by contacts. The contacts are divided into contact groups having a same arrangement. The pixel component is divided into pixel blocks corresponding to the contact groups. Each pixel block includes first and second area divided by contact group. The first area is closer to the scan driver than the second area. The pixel component further includes supplementary power lines spaced apart from the respective sub-scan lines.Type: ApplicationFiled: April 3, 2023Publication date: March 14, 2024Applicant: Samsung Display Co., LTD.Inventors: Do Yeong PARK, Kyung Bae KIM, Jong Woong CHANG
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Publication number: 20240006573Abstract: A display device includes electrodes spaced from each other in a display area, light emitting elements between the electrodes, test electrodes spaced from each other in a test area, and a test transistor electrically connected to the electrodes and the test electrodes.Type: ApplicationFiled: June 21, 2023Publication date: January 4, 2024Inventors: Do Yeong PARK, Kyung Bae KIM, Won Jun LEE, Jong Woong CHANG
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Publication number: 20230420616Abstract: A display device including: a first sub-pixel, a second sub-pixel, and a third sub-pixel adjacent to each other, each of the first, second, and third sub-pixels including an emission area and a non-emission area, where each of the first, second, and third sub-pixels includes: a first alignment electrode and a second alignment electrode spaced from each other; a first insulating layer on the first alignment electrode and the second alignment electrode; light emitting elements on the first insulating layer on the first alignment electrode and the second alignment electrode in the emission area; a second insulating layer on the first insulating layer and the light emitting elements; and a third insulating layer on the second insulating layer, wherein the second and the third insulating layers are not on at least one area of the first alignment electrode in at least the non-emission area.Type: ApplicationFiled: June 21, 2023Publication date: December 28, 2023Inventors: Do Yeong PARK, Kyung Bae KIM, Won Jun LEE, Jong Woong CHANG
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Publication number: 20230282776Abstract: A display device includes a bank disposed on a substrate, the bank surrounding at least a portion of each of a first emission area and a second emission area in a plan view; first alignment electrodes, at least a number of the first alignment electrodes being disposed in the first emission area; second alignment electrodes, at least a number of the second alignment electrodes being disposed in the second emission area; and a light emitting element disposed in each of the first emission area and the second emission area. An electrode most adjacent to the second emission area among the first alignment electrodes and an electrode most adjacent to the first emission area among the second alignment electrodes are spaced apart from each other with a dividing line disposed therebetween, and the dividing line overlaps the bank in a plan view.Type: ApplicationFiled: February 8, 2023Publication date: September 7, 2023Applicant: Samsung Display Co., LTD.Inventors: Kyung Bae KIM, Ji Hye LEE, Jong Woong CHANG
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Publication number: 20230282795Abstract: A display device includes a substrate, first sub-pixels, second sub-pixels, and third sub-pixels on the substrate, the second sub-pixels being adjacent to the first sub-pixels, and third sub-pixels being spaced from the first sub-pixels with a respective one of the second sub-pixels therebetween, first electrodes and second electrodes on the substrate and located in the sub-pixels, first light-emitting elements, second light-emitting elements, and third light-emitting elements on the first electrodes and the second electrodes and located in the sub-pixels, each of the light-emitting elements comprising a first end and a second end opposite to the first end, and a first connection electrode, a second connection electrode, a third connection electrode, and a fourth connection electrode on the first to third light-emitting elements and located in the sub-pixels, wherein in the first sub-pixel, the first electrodes are extended in a first direction and are spaced from one another.Type: ApplicationFiled: January 10, 2023Publication date: September 7, 2023Inventors: Kyung Bae KIM, Do Yeong PARK, Yong Hee LEE, Jong Woong CHANG, Ki Hyun PYO
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Publication number: 20230142014Abstract: A display device includes a base layer including a display area and a non-display area, an emission unit including a first electrode electrically connected to a first driving power source, a second electrode electrically connected to a second driving power source, and a light-emitting element disposed between first and second electrodes, a first transistor including a first terminal electrically connected to the first driving power source, a second terminal electrically connected to the first electrode of the emission unit, and a gate electrode electrically connected to a first node, a second transistor including a first terminal electrically connected to a data line, a second terminal electrically connected to the first node, and a gate electrode electrically connected to a scan line, and an electrostatic discharge circuit disposed in the display area and disposed between the first driving power source and the data line.Type: ApplicationFiled: September 21, 2022Publication date: May 11, 2023Applicant: Samsung Display Co., LTD.Inventors: Kwi Hyun KIM, Byoung Sun NA, Sang Yong NO, Jong Woong CHANG, Chong Chul CHAI
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Patent number: 10996525Abstract: Provided are a display substrate and a method of fabricating the same. The display substrate includes: a substrate including a display area and a first non-display area and a second non-display area which are located around the display area; first signal transmission portions located in the first non-display area; second signal transmission portions located in the second non-display area; and a seal line including a first seal line pattern disposed on the first signal transmission portions and a second seal line pattern disposed on the second signal transmission portions, wherein each of the first signal transmission portions includes a gate wiring and a step compensation portion which is disposed on the gate wiring and under the first seal line pattern, and the first seal line pattern overlaps the step compensation portion.Type: GrantFiled: March 27, 2019Date of Patent: May 4, 2021Inventor: Jong Woong Chang
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Patent number: 10663813Abstract: Provided is a liquid crystal display including a plurality of pixels disposed in a matrix of pixel rows and pixel columns, the liquid crystal display including: a plurality of gate lines formed on a first substrate and disposed two between every pixel row; a plurality of data lines formed on the first substrate and disposed one between every two adjacent pixel columns; a common voltage line formed on the first substrate and extending in a pixel row direction along a vertical center of the pixel; and a plurality of pixel electrodes and common electrodes formed on the first substrate and overlapping with each other with an insulating layer therebetween, each pixel electrode positioned in a pixel, and in which two pixel electrodes in the two pixel columns disposed between two adjacent data lines among the plurality of data lines are both connected to any one of the two data lines.Type: GrantFiled: August 1, 2016Date of Patent: May 26, 2020Assignee: Samsung Display Co., Ltd.Inventor: Jong Woong Chang
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Patent number: 10534206Abstract: A liquid crystal display, including: a liquid crystal panel; and a visual inspection unit positioned in an outer region of the liquid crystal panel and transferring a test signal to the liquid crystal panel, in which the visual inspection unit includes: a test pad to which a test signal is applied; a first test line connected to the test pad; and a second test line connected to the test pad through a bridge line.Type: GrantFiled: June 2, 2015Date of Patent: January 14, 2020Assignee: Samsung Display Co., Ltd.Inventors: Young Jae Jeon, Yun Hee Kwak, Hyoung-joon Kim, Jae Ho Choi, Kyung Hyun Kim, Jong Woong Chang
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Publication number: 20190219852Abstract: Provided are a display substrate and a method of fabricating the same. The display substrate includes: a substrate including a display area and a first non-display area and a second non-display area which are located around the display area; first signal transmission portions located in the first non-display area; second signal transmission portions located in the second non-display area; and a seal line including a first seal line pattern disposed on the first signal transmission portions and a second seal line pattern disposed on the second signal transmission portions, wherein each of the first signal transmission portions includes a gate wiring and a step compensation portion which is disposed on the gate wiring and under the first seal line pattern, and the first seal line pattern overlaps the step compensation portion.Type: ApplicationFiled: March 27, 2019Publication date: July 18, 2019Inventor: Jong Woong CHANG
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Patent number: 10268090Abstract: Provided are a display substrate and a method of fabricating the same. The display substrate includes: a substrate including a display area and a first non-display area and a second non-display area which are located around the display area; first signal transmission portions located in the first non-display area; second signal transmission portions located in the second non-display area; and a seal line including a first seal line pattern disposed on the first signal transmission portions and a second seal line pattern disposed on the second signal transmission portions, wherein each of the first signal transmission portions includes a gate wiring and a step compensation portion which is disposed on the gate wiring and under the first seal line pattern, and the first seal line pattern overlaps the step compensation portion.Type: GrantFiled: August 25, 2011Date of Patent: April 23, 2019Assignee: Samsung Display Co., Ltd.Inventor: Jong-Woong Chang
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Patent number: 10209590Abstract: Provided is a liquid crystal display including: a first substrate; a gate line, a data line, and a common voltage line formed on the first substrate; a first passivation layer formed on the gate line, the data line, and the common voltage line; and a pixel electrode and a common electrode formed on the first passivation layer and overlapping each other with a second passivation layer therebetween, and the common electrode is connected to the common voltage line through a common contact hole, and the common contact hole is disposed for every two or more dots.Type: GrantFiled: March 21, 2016Date of Patent: February 19, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jong Woong Chang, Dong Ho Shin, Yun Tae Lee
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Patent number: 10209588Abstract: A method of repairing a short of a pixel electrode and a storage electrode including irradiating laser to separate a portion shorted to the pixel electrode among the storage electrode to be disconnected, in which the storage electrode includes a first portion overlapping a data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed, the pixel area is defined by the data line and a gate line, a thin film transistor is coupled to the data line, the gate line, and the pixel electrode, and two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas.Type: GrantFiled: June 13, 2018Date of Patent: February 19, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jong-Woong Chang, Ho-Kyoon Kwon, Shin-Tack Kang
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Patent number: 10185195Abstract: A liquid crystal display device for improving picture quality includes a common electrode formed on a first substrate, gate lines and data lines formed on a second substrate bonded to the first substrate by a sealing member with liquid crystals disposed therebetween, thin film transistors connected to the gate lines and to the data lines, pixel electrodes formed in subpixel regions, each pixel electrode having a long side in a direction of the gate lines and having a short side in a direction of the data lines fanout lines for supplying a driving signals from the driving chips to the data lines, first conductive spacers formed between the fanout lines connected to different driving chips, for supplying a common voltage to the common electrode, and second conductive spacers formed between the fanout lines connected to the same driving chip, for supplying the common voltage to the common electrode.Type: GrantFiled: August 16, 2017Date of Patent: January 22, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Gyu Kim, Jong Woong Chang
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Publication number: 20180292723Abstract: A method of repairing a short of a pixel electrode and a storage electrode including irradiating laser to separate a portion shorted to the pixel electrode among the storage electrode to be disconnected, in which the storage electrode includes a first portion overlapping a data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed, the pixel area is defined by the data line and a gate line, a thin film transistor is coupled to the data line, the gate line, and the pixel electrode, and two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes respectively formed in the two adjacent pixel areas.Type: ApplicationFiled: June 13, 2018Publication date: October 11, 2018Inventors: Jong-Woong CHANG, Ho-Kyoon KWON, Shin-Tack KANG
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Patent number: 10042218Abstract: A liquid-crystal display device, including: a first data line and a second data line each lengthwise extended in a first direction and spaced apart from each other, a gate line lengthwise extended in a second direction different from the first direction, the gate line defining: a first region thereof overlapping the first data line, a second region thereof overlapping the second data line and a third region thereof extended between the first region and the second region, and a pixel including a switching element, a first electrode of the switching element being connected to the first data line and a second electrode of the switching element overlapping each of the first to third regions. In the first direction, a width of the third region is smaller than a width of each of the first and second regions.Type: GrantFiled: July 18, 2016Date of Patent: August 7, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Jong Woong Chang
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Patent number: 10007158Abstract: A method to repair a data line in a thin film transistor array panel includes, if the data line is disconnected at a disconnection portion, irradiating a laser on at least one side of the disconnected portion of the data line to short the data line and a storage electrode, and irradiating the laser to separate a portion shorted to the data line among the storage electrode to be disconnected. The storage electrode includes a first portion overlapping the data line between two adjacent gate lines and a second portion connected to the first portion and enclosing an edge of a pixel area except for a region where the first portion is formed. Two adjacent pixel areas are defined by the two adjacent gate lines and two adjacent data lines, and the storage electrode is branched between pixel electrodes.Type: GrantFiled: January 22, 2016Date of Patent: June 26, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jong-Woong Chang, Ho-Kyoon Kwon, Shin-Tack Kang
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Publication number: 20170343877Abstract: A liquid crystal display device for improving picture quality includes a common electrode formed on a first substrate, gate lines and data lines formed on a second substrate bonded to the first substrate by a sealing member with liquid crystals disposed therebetween, thin film transistors connected to the gate lines and to the data lines, pixel electrodes formed in subpixel regions, each pixel electrode having a long side in a direction of the gate lines and having a short side in a direction of the data lines fanout lines for supplying a driving signals from the driving chips to the data lines, first conductive spacers formed between the fanout lines connected to different driving chips, for supplying a common voltage to the common electrode, and second conductive spacers formed between the fanout lines connected to the same driving chip, for supplying the common voltage to the common electrode.Type: ApplicationFiled: August 16, 2017Publication date: November 30, 2017Inventors: Dong Gyu Kim, Jong Woong Chang
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Patent number: 9753346Abstract: A liquid crystal display device for improving picture quality includes a common electrode formed on a first substrate, gate lines and data lines formed on a second substrate bonded to the first substrate by a sealing member with liquid crystals disposed therebetween, thin film transistors connected to the gate lines and to the data lines, pixel electrodes formed in subpixel regions, each pixel electrode having a long side in a direction of the gate lines and having a short side in a direction of the data lines fanout lines for supplying a driving signals from the driving chips to the data lines, first conductive spacers formed between the fanout lines connected to different driving chips, for supplying a common voltage to the common electrode, and second conductive spacers formed between the fanout lines connected to the same driving chip, for supplying the common voltage to the common electrode.Type: GrantFiled: August 24, 2015Date of Patent: September 5, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Gyu Kim, Jong Woong Chang
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Publication number: 20170146868Abstract: A liquid-crystal display device, including: a first data line and a second data line each lengthwise extended in a first direction and spaced apart from each other, a gate line lengthwise extended in a second direction different from the first direction, the gate line defining: a first region thereof overlapping the first data line, a second region thereof overlapping the second data line and a third region thereof extended between the first region and the second region, and a pixel including a switching element, a first electrode of the switching element being connected to the first data line and a second electrode of the switching element overlapping each of the first to third regions. In the first direction, a width of the third region is smaller than a width of each of the first and second regions.Type: ApplicationFiled: July 18, 2016Publication date: May 25, 2017Inventor: Jong Woong CHANG