Patents by Inventor Kyung-Hwa LIM
Kyung-Hwa LIM 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: 11961775Abstract: In one example, a semiconductor device can comprise a substrate, a device stack, first and second internal interconnects, and an encapsulant. The substrate can comprise a first and second substrate sides opposite each other, a substrate outer sidewall between the first substrate side and the second substrate side, and a substrate inner sidewall defining a cavity between the first substrate side and the second substrate side. The device stack can be in the cavity and can comprise a first electronic device, and a second electronic device stacked on the first electronic device. The first internal interconnect can be coupled to the substrate and the device stack. The encapsulant can cover the substrate inner sidewall and the device stack and can fill the cavity. Other examples and related methods are disclosed herein.Type: GrantFiled: November 8, 2022Date of Patent: April 16, 2024Assignee: Amkor Technology Singapore Holding Pte. Ltd.Inventors: Gyu Wan Han, Won Bae Bang, Ju Hyung Lee, Min Hwa Chang, Dong Joo Park, Jin Young Khim, Jae Yun Kim, Se Hwan Hong, Seung Jae Yu, Shaun Bowers, Gi Tae Lim, Byoung Woo Cho, Myung Jea Choi, Seul Bee Lee, Sang Goo Kang, Kyung Rok Park
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Patent number: 11924969Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: GrantFiled: December 15, 2022Date of Patent: March 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-Hwa Lim, Sangan Kwon, Kyunho Kim, Yong-Jin Shin, Shimho Yi, Heebum Park
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Publication number: 20230113451Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: ApplicationFiled: December 15, 2022Publication date: April 13, 2023Inventors: Kyung-hwa LIM, Sangan KWON, Kyunho KIM, Yong-jin SHIN, Shimho YI, Heebum PARK
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Patent number: 11614663Abstract: A display device includes a first substrate, a second substrate facing the first substrate, and a sealing layer respectively including first, second and third side surfaces coplanar with each other; a first recess defined recessed from each of the first side surface, the second side surface and the third side surface; a first conductive pattern in the first recess; and a first driver facing each of the first side surface, the second side surface and the third side surface. At the first recess: the first conductive pattern is exposed to outside the first substrate, the second substrate and the sealing layer, and the first driver is electrically connected to the first conductive pattern.Type: GrantFiled: January 29, 2021Date of Patent: March 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jingwan Jang, Ho Sup Choi, Sungwoo Lee, Kyung-Hwa Lim
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Publication number: 20230074833Abstract: A display device includes a display panel, a main digitizer and a sub-digitizer disposed behind the display panel. A main flexible circuit board is disposed on a rear surface of the main digitizer and is connected to the main digitizer. A sub-flexible circuit board disposed on a rear surface of the sub-digitizer and connected to the sub-digitizer. A bridge flexible circuit board disposed on the rear surface of the main digitizer and the rear surface of the sub-digitizer and connected to the main flexible circuit board and the sub-flexible circuit board.Type: ApplicationFiled: September 3, 2022Publication date: March 9, 2023Inventors: SUNGYEON CHO, HOSEOK SON, SUNGUN PARK, JONGIN BAEK, KYUNG-HWA LIM
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Patent number: 11533808Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: GrantFiled: December 21, 2020Date of Patent: December 20, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-hwa Lim, Sangan Kwon, Kyunho Kim, Yong-jin Shin, Shimho Yi, Heebum Park
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Publication number: 20210263367Abstract: A display device includes a first substrate, a second substrate facing the first substrate, and a sealing layer respectively including first, second and third side surfaces coplanar with each other; a first recess defined recessed from each of the first side surface, the second side surface and the third side surface; a first conductive pattern in the first recess; and a first driver facing each of the first side surface, the second side surface and the third side surface. At the first recess: the first conductive pattern is exposed to outside the first substrate, the second substrate and the sealing layer, and the first driver is electrically connected to the first conductive pattern.Type: ApplicationFiled: January 29, 2021Publication date: August 26, 2021Inventors: JINGWAN JANG, HO SUP CHOI, SUNGWOO LEE, KYUNG-HWA LIM
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Publication number: 20210112658Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Inventors: Kyung-hwa LIM, Sangan KWON, Kyunho KIM, Yong-jin SHIN, Shimho YI, Heebum PARK
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Patent number: 10957265Abstract: A display apparatus includes a display panel including display blocks, where each of the display blocks includes a plurality of pixels, a gate driver which outputs gate signals to the pixels, a data driver which receives image data and outputs data voltages corresponding to the image data to the pixels, and a timing controller which converts an image signal input thereto, outputs the converted image signal to the data driver as the image data, and controls a driving timing of the gate driver and the data driver. The timing controller controls output timings of at least data voltages output to pixels of a predetermined display block among the data voltages provided to the pixels of the display blocks, depending on a color pattern of the image signal corresponding to the pixels of the predetermined display block.Type: GrantFiled: June 19, 2018Date of Patent: March 23, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Neung-beom Lee, Junpyo Lee, Sangan Kwon, Kyunho Kim, Sungjin Kim, Yong-jin Shin, Shimho Yi, Kyung-hwa Lim
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Patent number: 10917969Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: GrantFiled: February 10, 2020Date of Patent: February 9, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-hwa Lim, Sangan Kwon, Kyunho Kim, Yong-jin Shin, Shimho Yi, Heebum Park
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Patent number: 10847113Abstract: A method of driving a liquid crystal display panel is provided. The liquid crystal display panel includes: a liquid crystal display pixel including a liquid crystal structure including a pixel electrode, a liquid crystal layer, and a common electrode; a switching transistor connected between the pixel electrode of the liquid crystal structure and a data-line; and a storage capacitor connected to the pixel electrode of the liquid crystal structure. The method includes: calculating an accumulated driving time of the liquid crystal display panel by accumulating a driving time of the liquid crystal display panel; determining whether or not the accumulated driving time has reached a deterioration reference time; and when the accumulated driving time is determined to have reached the deterioration reference time, changing a gate-off voltage applied to a gate terminal of the switching transistor and a common voltage applied to the common electrode.Type: GrantFiled: January 31, 2019Date of Patent: November 24, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sangan Kwon, Junpyo Lee, Kyunho Kim, Sungjin Kim, Yong-Jin Shin, Neung-Beom Lee, Kyung-Hwa Lim, Jinhyuk Jang
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Publication number: 20200178393Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: ApplicationFiled: February 10, 2020Publication date: June 4, 2020Inventors: Kyung-hwa LIM, Sangan KWON, Kyunho KIM, Yong-jin SHIN, Shimho YI, Heebum PARK
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Patent number: 10650772Abstract: A display device includes: a display panel comprising a display area configured to display an image, wherein the display area includes a measurement area including a plurality of sub-measurement areas, and each of the plurality of sub-measurement areas includes a plurality of pre-map areas; a data driver configured to provide data voltages to the display panel; a signal controller; and a common voltage generator configured to provide a common voltage to the display panel, wherein an afterimage reduction mode is driven to change a level of the common voltage provided by the common voltage generator when the determined pre-map areas are adjacent to each other.Type: GrantFiled: October 22, 2018Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventors: Sangan Kwon, Junpyo Lee, Kyunho Kim, Sungjin Kim, Yong-jin Shin, Neung-beom Lee, Kyung-hwa Lim, Myungbo Sim, Jinhyuk Jang
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Patent number: 10595408Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: GrantFiled: September 26, 2017Date of Patent: March 17, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung-hwa Lim, Sangan Kwon, Kyunho Kim, Yong-jin Shin, Shimho Yi, Heebum Park
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Publication number: 20190244580Abstract: A method of driving a liquid crystal display panel is provided. The liquid crystal display panel includes: a liquid crystal display pixel including a liquid crystal structure including a pixel electrode, a liquid crystal layer, and a common electrode; a switching transistor connected between the pixel electrode of the liquid crystal structure and a data-line; and a storage capacitor connected to the pixel electrode of the liquid crystal structure. The method includes: calculating an accumulated driving time of the liquid crystal display panel by accumulating a driving time of the liquid crystal display panel; determining whether or not the accumulated driving time has reached a deterioration reference time; and when the accumulated driving time is determined to have reached the deterioration reference time, changing a gate-off voltage applied to a gate terminal of the switching transistor and a common voltage applied to the common electrode.Type: ApplicationFiled: January 31, 2019Publication date: August 8, 2019Inventors: Sangan KWON, Junpyo LEE, Kyunho KIM, Sungjin KIM, Yong-Jin SHIN, Neung-Beom LEE, Kyung-Hwa LIM, Jinhyuk JANG
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Patent number: 10319328Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.Type: GrantFiled: November 1, 2017Date of Patent: June 11, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyun Ho Kim, Bong Gyun Kang, Sang An Kwon, Seung Hwan Moon, Yong Jin Shin, Neung Beom Lee, Jun Pyo Lee, Kyung Hwa Lim
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Publication number: 20190122630Abstract: A display device includes: a display panel comprising a display area configured to display an image, wherein the display area includes a measurement area including a plurality of sub-measurement areas, and each of the plurality of sub-measurement areas includes a plurality of pre-map areas; a data driver configured to provide data voltages to the display panel; a signal controller; and a common voltage generator configured to provide a common voltage to the display panel, wherein an afterimage reduction mode is driven to change a level of the common voltage provided by the common voltage generator when the determined pre-map areas are adjacent to each other.Type: ApplicationFiled: October 22, 2018Publication date: April 25, 2019Inventors: Sangan KWON, Junpyo LEE, Kyunho KIM, Sungjin KIM, Yong-jin SHIN, Neung-beom LEE, Kyung-hwa LIM, Myungbo SIM, Jinhyuk JANG
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Publication number: 20190035341Abstract: A display apparatus includes a display panel including display blocks, where each of the display blocks includes a plurality of pixels, a gate driver which outputs gate signals to the pixels, a data driver which receives image data and outputs data voltages corresponding to the image data to the pixels, and a timing controller which converts an image signal input thereto, outputs the converted image signal to the data driver as the image data, and controls a driving timing of the gate driver and the data driver. The timing controller controls output timings of at least data voltages output to pixels of a predetermined display block among the data voltages provided to the pixels of the display blocks, depending on a color pattern of the image signal corresponding to the pixels of the predetermined display block.Type: ApplicationFiled: June 19, 2018Publication date: January 31, 2019Inventors: Neung-beom LEE, Junpyo LEE, Sangan KWON, Kyunho KIM, Sungjin KIM, Yong-jin SHIN, Shimho YI, Kyung-hwa LIM
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Publication number: 20180301105Abstract: A display device and method is provided that permits selection of a first lookup table or a second lookup table to operate the data driver at respectively different temperatures to prevent heat from damaging the display device. The display device includes a detector which detects the number of toggles in which the amount of change in gray values of successive pixels driven by the same data line in one frame is equal to or greater than a reference gray change amount. A comparator compares the number of toggles detected by the detector with a reference number of toggles, and a lookup table selector which selects any one of a first lookup table and a second lookup table based on the comparison result of the comparator and provides the selected first lookup table or second lookup table to a data driver.Type: ApplicationFiled: November 1, 2017Publication date: October 18, 2018Inventors: KYUN HO KIM, Bong Gyun KANG, Sang An KWON, Seung Hwan MOON, Yong Jin SHIN, Neung Beom LEE, Jun Pyo LEE, Kyung Hwa LIM
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Publication number: 20180153039Abstract: A display device includes a display panel, a first circuit board, a control unit disposed on the first circuit board, a second circuit board, and a coupling film which electrically couples the control unit and the second circuit board to each other. The coupling film includes a first coupling part including a first region attached to the first circuit board, and a second region overlapping the display panel when viewed in a thickness direction of the display panel, a second coupling part including a third region attached to the second circuit board, and a fourth region overlapping the display panel when viewed in the thickness direction of the display panel, and a third coupling part coupled to each of the second region and the fourth region to electrically couple the first coupling part and the second coupling part to each other.Type: ApplicationFiled: September 26, 2017Publication date: May 31, 2018Inventors: Kyung-hwa LIM, Sangan KWON, Kyunho KIM, Yong-jin SHIN, Shimho YI, Heebum PARK