Patents by Inventor Ga-Young Kim
Ga-Young 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: 11372508Abstract: A sensing circuit includes: a plurality of sensor electrodes; a first capacitance between the sensor electrodes; a plurality of proximity sensing electrodes electrically isolated from the sensor electrodes; and a second capacitance between at least one of the sensor electrodes and the proximity sensing electrodes. A density of at least one of the proximity sensing electrodes is less than a density of at least one of the sensor electrodes.Type: GrantFiled: April 14, 2020Date of Patent: June 28, 2022Assignee: Samsung Display Co., Ltd.Inventors: Choon Hyop Lee, Kang Won Lee, Ga Young Kim, Jang Hui Kim, A Ra Jo
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Publication number: 20220155895Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.Type: ApplicationFiled: November 22, 2021Publication date: May 19, 2022Inventors: Do Ik KIM, Ga Young Kim, Sang Hyun Lim, Young Sik Kim, Sang Chul Lee, Hwan Hee Jeong
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Publication number: 20220137736Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.Type: ApplicationFiled: December 9, 2021Publication date: May 5, 2022Inventors: Jang Hui KIM, Ga Young KIM, Do lk KIM, Sang Chul LEE, A Ra JO
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Patent number: 11320944Abstract: A touch sensor includes: a sensing area including a first sensing area positioned in a center portion and a second sensing area positioned outwardly therefrom in an edge portion; first sensor electrodes disposed in the first sensing area; and second sensor electrodes disposed in the second sensing area, the second sensor electrodes being configured to be separately activated from the first sensor electrodes. The first sensor electrodes are drivable to detect a touch input generated in the first sensing area in a first mode and the second sensor electrodes are drivable to detect a touch input generated in the second sensing area in a second mode.Type: GrantFiled: September 24, 2020Date of Patent: May 3, 2022Assignee: Samsung Display Co., Ltd.Inventors: Gwang Bum Ko, Ga Young Kim, Sang Hyun Lim
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Patent number: 11307699Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.Type: GrantFiled: January 28, 2021Date of Patent: April 19, 2022Assignee: Samsung Display Co., Ltd.Inventors: Ga Young Kim, Jang Hui Kim, A Ra Jo
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Publication number: 20220113822Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Inventors: Do Ik Kim, Jang hui Kim, Sang Chul Lee, Ga Young Kim
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Patent number: 11294502Abstract: A touch sensor includes a sensor unit including a plurality of first electrodes in an active area spaced apart from each other, and at least one second electrode, a plurality of sensing channels respectively coupled to one of the first electrodes, and each sensing channel including a reference node having a variable voltage coupled to the at least one second electrode, and a processor configured to receive output signals from the sensing channels, and detect a touch input based on the output signals. The plurality of sensing channels may be configured to supply driving signals to respective first electrodes during a first period, receive sensing signals from respective first electrodes during a second period, and generate the output signals corresponding to the sensing signals received from respective first electrodes based on potentials of the respective reference nodes. A method of driving a touch sensor also is disclosed.Type: GrantFiled: April 10, 2018Date of Patent: April 5, 2022Assignee: Samsung Display Co., Ltd.Inventors: Do Ik Kim, Ga Young Kim, Young Sik Kim, Sang Chul Lee
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Publication number: 20220076897Abstract: Provided is a perovskite solar cell including a substrate, a lower transparent electrode provided on the substrate, an upper transparent electrode provided on the lower transparent electrode, and a light absorption layer interposed between the lower transparent electrode and the upper transparent electrode, wherein the light absorption layer includes a perovskite material, and at least one of the lower transparent electrode or the upper transparent electrode includes a first color implementation layer, an intermediate layer, and a second color implementation layer, which are sequentially stacked, the first color implementation layer and the second color implementation layer each being a metal oxide layer containing a dopant.Type: ApplicationFiled: July 12, 2021Publication date: March 10, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ga Young KIM, JungWook LIM
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Patent number: 11231825Abstract: The touch sensor includes first touch electrode members disposed on a base layer and located in a sensing area, each of the first touch electrode members including a plurality of first touch electrodes arranged along a first direction, each of the first touch electrodes including a first opening; second touch electrode members disposed on the base layer and located in a sensing area, each of the second touch electrode members including a plurality of second touch electrodes arranged along a second direction, each of the second touch electrodes including a second opening; and a first pressure sensor disposed on the base layer and including a first strain gauge. A portion of the first strain gauge is located in the second sensing area, and the first strain gauge includes a portion located in the second sensing area and disposed in the same layer as the plurality of first touch electrodes and the plurality of second touch electrodes.Type: GrantFiled: March 31, 2020Date of Patent: January 25, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jang Hui Kim, Ga Young Kim, Do Ik Kim, Sang Chul Lee, A Ra Jo
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Patent number: 11231819Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.Type: GrantFiled: April 5, 2021Date of Patent: January 25, 2022Inventors: Do Ik Kim, Jang hui Kim, Sang Chul Lee, Ga Young Kim
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Patent number: 11182005Abstract: A touch sensor includes a first electrode, a second electrode, and a sensing channel. The first electrode includes first electrode cells arranged in a first direction, a first connection portion connecting the first electrode cells in the first direction and a first opening disposed in at least one of the first electrode cells. The second electrode includes an electrode portion disposed in the first opening. The electrode portion is disposed on a same layer as the first electrode cells and separated from the first electrode. The sensing channel includes a first terminal and a second terminal. The first terminal is connected to the first electrode. The second terminal is connected to the second electrode.Type: GrantFiled: July 31, 2020Date of Patent: November 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Do Ik Kim, Ga Young Kim, Sang Hyun Lim, Young Sik Kim, Sang Chul Lee, Hwan Hee Jeong
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Publication number: 20210318779Abstract: A touch sensor includes: a sensing area including a first sensing area positioned in a center portion and a second sensing area positioned outwardly therefrom in an edge portion; first sensor electrodes disposed in the first sensing area; and second sensor electrodes disposed in the second sensing area, the second sensor electrodes being configured to be separately activated from the first sensor electrodes. The first sensor electrodes are drivable to detect a touch input generated in the first sensing area in a first mode and the second sensor electrodes are drivable to detect a touch input generated in the second sensing area in a second mode.Type: ApplicationFiled: September 24, 2020Publication date: October 14, 2021Inventors: Gwang Bum KO, Ga Young KIM, Sang Hyun LIM
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Publication number: 20210294475Abstract: A display device comprises: a display panel; a window; and a first pressure sensor. The display panel comprises: a planar portion; a first curved portion connected to one side of the planar portion; and a first side portion connected to one side of the first curved portion. The window is on the display panel. The first pressure sensor overlaps with the first side portion. Here, the first side portion is in a plane different from each of the planar portion and the first curved portion.Type: ApplicationFiled: December 20, 2018Publication date: September 23, 2021Inventors: Choon Hyop LEE, Sang Chul LEE, Ga Young KIM, Kang Won LEE, Seung Hwan CHUNG, Do Ik KIM
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Publication number: 20210278930Abstract: A touch sensor includes a base layer, a first electrode unit, second electrode units, and a first strain gauge. The first electrode unit includes first touch electrodes arranged on the base layer along a first direction and electrically connected to each other along the first direction. The second electrode units are spaced apart from one another along the first direction. Each of the second electrode units includes second touch electrodes arranged on the base layer along a second direction intersecting the first direction and electrically connected to each other along the second direction. Each of the second touch electrodes includes a first opening. The first strain gauge includes first resistance lines electrically connected to each other along the first direction. Each of the first resistance lines is disposed in a respective first opening disposed in a first row among the first openings.Type: ApplicationFiled: March 1, 2021Publication date: September 9, 2021Inventors: Jang Hul KIM, Ga Young KIM, A Ra JO
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Publication number: 20210263630Abstract: A display device, includes: a display panel having short sides and long sides; and a touch sensor on the display panel and including a sensing area and a non-sensing area around the sensing area, wherein the touch sensor includes: a first touch electrode unit including a plurality of first touch electrodes in the sensing area, arranged in a direction in which the short sides of the display panel extend, and each including a first opening; a second touch electrode unit including a plurality of second touch electrodes in the sensing area, arranged in a direction in which the long sides of the display panel extend, and each including a second opening; and a pressure sensor including a strain gauge, at least a part of the strain gauge being located in the sensing area.Type: ApplicationFiled: February 11, 2021Publication date: August 26, 2021Inventors: Jang Hui KIM, Ga Young KIM, Jung Mok PARK, A Ra JO
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Patent number: 11099699Abstract: A touch sensor including a substrate including an active area and a non-active area, a plurality of first electrodes extending in first direction on the active area, a plurality of second electrodes extending in a second direction crossing the first direction on the active area, a plurality of third electrodes including electrode portions disposed in the first electrodes, respectively, being separated from the first electrodes, and extending in the first direction on the active area, and a sensing circuit including a plurality of signal receivers receiving sensing signals from the first electrodes, respectively, in which each of the signal receivers includes first and second input terminals connected to a pair of first and third electrodes corresponding to each other, respectively, and outputs a signal corresponding to a voltage difference between the first and second input terminals.Type: GrantFiled: May 8, 2020Date of Patent: August 24, 2021Assignee: Samsung Display Co., Ltd.Inventors: Do Ik Kim, Sang Hyun Lim, Ga Young Kim
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Publication number: 20210223888Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Inventors: Do Ik KIM, Jang hui KIM, Sang Chul LEE, Ga Young KIM
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Patent number: 11061508Abstract: In an embodiment, a touch sensor may include a sensor part including a first electrode and a second electrode, a signal receiving part, an amplifier circuit part connected between the second electrode and the signal receiving part, an analog-to-digital converter part configured to output a digital signal corresponding to a voltage difference between input terminals, and a processor configured to detect a touch input from the sensor part in response to the digital signal when operating in a first mode, and to output a gain control signal for calibrating a gain value of the amplifier circuit part in response to the digital signal when operating in a second mode.Type: GrantFiled: September 21, 2020Date of Patent: July 13, 2021Inventors: Do Ik Kim, Sang Hyun Lim, Ga Young Kim, Young Sik Kim, Sang Chul Lee
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Publication number: 20210149517Abstract: A display device includes: a base substrate; a light emitting element located on the base substrate; a thin-film encapsulation layer located on the light emitting element; touch electrodes located on the thin-film encapsulation layer, each of the touch electrode including an opening; and a strain gauge including: resistance lines located in the openings, respectively, the resistance lines located in the same layer as the touch electrodes and having variable resistance values changed in response to a touch input; a first connection line connecting two resistance lines neighboring each other along a first direction; and a second connection line connecting two resistance lines neighboring each other along a second direction, the second direction intersecting the first direction, wherein the first connection line and the second connection line are located between the thin-film encapsulation layer and the resistance lines.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Inventors: Ga Young KIM, Jang Hui KIM, A Ra JO
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Patent number: 10969911Abstract: A touch sensor includes a base layer; a first electrode member that includes a plurality of first electrodes arranged on the base layer and electrically connected to each other along a first direction, each of the first electrodes including a first opening; a second electrode member that includes a plurality of second electrodes arranged on the base layer and electrically connected to each other along a second direction that intersects the first direction; a conductive member that includes a plurality of conductive patterns electrically connected to each other along the first direction; and a proximity detector that is electrically connected to the conductive member and configured to detect proximity of an object by receiving a proximity sensing signal from the conductive member. Each of the conductive patterns is located in the first opening of each of the first electrodes and spaced apart from each of the first electrodes, respectively.Type: GrantFiled: July 29, 2019Date of Patent: April 6, 2021Inventors: Do ik Kim, Jang hui Kim, Sang Chul Lee, Ga Young Kim