Patents by Inventor Hyun-Wook Cho
Hyun-Wook Cho 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: 20230058621Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that drives the display panel and outputs a synchronization signal including information about an operating frequency of the display panel, and a sensing controller that receives the synchronization signal and determines an operating frequency of the input sensing layer based on the synchronization signal. A driving frame of the display panel includes a first section during which an image is not displayed and a second section during which an image is displayed. During the driving frame, the display controller transmits a data signal for displaying an image to the display panel. The synchronization signal includes a first pulse corresponding to a timing of the first section, and a second pulse corresponding to a timing of the second section.Type: ApplicationFiled: April 27, 2022Publication date: February 23, 2023Inventors: MIN-HONG KIM, HYUN-WOOK CHO, TAEJOON KIM, JUNGMOK PARK
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Publication number: 20230052993Abstract: The present disclosure relates to a touch detection device that can increase the emission efficiency while maintaining touch detecting performance by improving the structure of touch electrodes. According to an embodiment of the disclosure, a touch detection device comprising a first touch insulating layer, a connection electrode disposed on the first touch insulating layer, a second touch insulating layer disposed on the connection electrode, a driving electrode disposed on a second touch insulating layer and connected to the connection electrode through at least one touch contact hole, and a sensing electrode disposed on the second touch and spaced apart from the driving electrode, wherein at least one of the driving electrode and the sensing electrode a conductive metal electrode and a metal oxide electrode which is oxidized.Type: ApplicationFiled: February 10, 2022Publication date: February 16, 2023Inventors: Jung Mok PARK, Min Hong KIM, Tae Joon KIM, Jin Woo PARK, Wan Kee JUN, Hyun Wook CHO
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Patent number: 11579738Abstract: A circuit board including: a body part including a driving chip; a pad part including a plurality of pads connected to a plurality of lines, wherein the pad part extends in a first direction from the body part; and a line part including a first line of the lines, wherein the first line is electrically connected to the driving chip, the line part extends in the first direction from the body part, and the line part is bendable with respect to a bending line.Type: GrantFiled: November 22, 2021Date of Patent: February 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun-Wook Cho, Min-Hong Kim, Sangkook Kim, TaeJoon Kim, Jungmok Park
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Publication number: 20230043335Abstract: An electronic device including: a display layer; and a sensor layer that includes: first electrodes in a sensing area and having different lengths; second electrodes in the sensing area; first cross electrodes in the sensing area; second cross electrodes in the sensing area and having different lengths; pads in a peripheral area; first lines extended from the first electrodes at a first side of the sensing area towards the pads; second lines extended from the second electrodes at a second side of the sensing area towards the pads; first cross lines extending from the first cross electrodes towards the pads; and second cross lines extending from the second cross electrodes towards the pads, the first lines being different from the second lines in number, and the first cross lines being different from the second cross lines in number.Type: ApplicationFiled: October 17, 2022Publication date: February 9, 2023Inventors: JUNGMOK PARK, Tae Yong EOM, Hyun-Wook CHO, Dongjin MOON, Yeri JEONG
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Publication number: 20230041419Abstract: A display device is described including a display panel for displaying an image and an input sensing unit disposed on the display panel for sensing a user input. The input sensing unit includes: an electrode unit including first electrodes and second electrodes which intersect each other and a control unit for determining the proximity of an object or the shape of the object, based on capacitance change values of the first electrodes and the second electrodes. In a first mode the input sensing unit is driven using a self-capacitance method. The control unit may merge the capacitance change values, and determine the proximity of the object based on the merged value. In a second mode based on mutual capacitance, the control unit may determine the shape of the object.Type: ApplicationFiled: October 4, 2022Publication date: February 9, 2023Inventors: JAE WOO CHOI, TAE JOON KIM, EUN SOL SEO, HYUN WOOK CHO
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Publication number: 20230030916Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.Type: ApplicationFiled: October 10, 2022Publication date: February 2, 2023Inventors: JUNSEONG LEE, BOGEUN YUK, MIN-HONG KIM, TAEJOON KIM, EUNGKWAN LEE, HYUN-WOOK CHO
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Patent number: 11567605Abstract: A display device includes: a display panel and an input sensor disposed on the display panel and operable in a first mode and a second mode different from the first mode, wherein the input sensor may include a plurality of sensing electrodes, a plurality of sensing wirings electrically connected to the plurality of sensing electrodes, respectively, and a blocking part covering the plurality of sensing wirings. The blocking part is configured to be floated in the first mode and to receive a substantially constant voltage in the second mode.Type: GrantFiled: February 9, 2021Date of Patent: January 31, 2023Assignee: Samsung Display Co., LTD.Inventors: Hyun-Wook Cho, Min-Hong Kim, Taejoon Kim, Jungmok Park
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Publication number: 20230022093Abstract: A display device including: a display panel configured to display an image in units of a frame; an input sensor disposed on the display panel, and configured to sense an external input; a panel driver configured to control driving of the display panel in response to a synchronization signal; and a sensor controller configured to control driving of the input sensor, wherein the sensor controller receives the synchronization signal from the panel driver and outputs a plurality of transmission signals to the input sensor, and the plurality of transmission signals are varyingly generated based on the synchronization signal.Type: ApplicationFiled: April 11, 2022Publication date: January 26, 2023Inventors: Jinwoo Park, Taejoon Kim, Jungmok Park, Il Ho Lee, Wankee Jun, Hyun-Wook Cho
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Patent number: 11537235Abstract: A display device includes: a display layer; a sensor layer on the display layer; a sensor driving part to provide a transmission signal to the sensor layer; and a display driving part to drive the display layer. The display layer includes: a plurality of pixels; first scan lines electrically connected to a first group of pixels; second scan lines electrically connected to a second group of pixels; and data lines electrically connected to the plurality of pixels. The display driving part is to drive the first scan lines, the second scan lines, and the data lines, and to alternately provide a pixel data signal and a compensation signal to data lines corresponding to the first group of pixels and data lines corresponding to the second group of pixels, the compensation signal being a signal that is complementary to at least one of the pixel data signal or the transmission signal.Type: GrantFiled: June 11, 2021Date of Patent: December 27, 2022Assignee: Samsung Display Co., Ltd.Inventors: Sanghyun Lim, Hyun-Wook Cho
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Publication number: 20220391069Abstract: A display device including: pixels; a data driver configured to start outputting data voltages to at least some of the pixels at a first time during a horizontal period, and end outputting the data voltages at a second time during the horizontal period; sensors; and a sensor driver configured to change a logic level of a sensing signal of at least some of the sensors at a third time different from the first time and the second time during the horizontal period, wherein at least one of the first time, the second time, and the third time is changed according to a number of times a logic level of a vertical synchronization signal is changed while a logic level of a horizontal synchronization signal is maintained.Type: ApplicationFiled: February 18, 2022Publication date: December 8, 2022Inventors: Hyun Wook CHO, Min Hong KIM, Jung Mok PARK, II Ho LEE
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Patent number: 11520449Abstract: An electronic apparatus includes an electronic panel including a plurality of sensing groups spaced apart from each other, and an electronic module overlapping with the electronic panel in a plan view. Each of the sensing groups includes a first sensing electrode extending in a second direction, and second sensing electrodes spaced apart from each other in the second direction, located on the same layer as the first sensing electrode, and face the first sensing electrode in a first direction. An opening overlapping with the electronic module and penetrating a first sensing group of the sensing groups is defined in the electronic panel, and at least one selected from the first sensing electrode and the second sensing electrodes of the first sensing group extends along an edge of the opening.Type: GrantFiled: October 29, 2019Date of Patent: December 6, 2022Assignee: Samsung Display Co., Ltd.Inventors: Joo-Hyeon Jeong, Taejoon Kim, Hyun-Wook Cho, Jaewoo Choi
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Publication number: 20220365651Abstract: An input sensing unit may include the following elements: a first sensing electrode including first sensors and a first connector coupling the first sensors; a second sensing electrode including second sensors and a second connector coupling the second sensors; a first sensing line including first sensing line parts and a third connector coupling the first sensing line parts; a second sensing line; and an insulating layer including a first insulating side and a second insulating side opposite the first insulating side. The first sensing line parts may overlap the first sensors and may be disposed on the first insulating side. The second sensing line may overlap the second sensors and may be disposed on the first insulating side. The first sensors may be disposed on the second insulating side. The second sensors may be disposed on the second insulating side.Type: ApplicationFiled: July 29, 2022Publication date: November 17, 2022Inventors: Hyun Wook CHO, Tae Joon KIM, Eun Sol SEO, Eung Kwan LEE, Jae Woo CHOI
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Publication number: 20220361337Abstract: A display device includes a display panel including a first surface and a second surface opposite to the first surface, the second surface having a first area and a second area surrounding the first area, a conductive sheet disposed on the second surface of the display panel and including a first conductive line disposed in the first area and extending in a first direction and a conductive layer disposed in the second area, a first circuit board bending from the first surface to the second surface to be connected to a first end of the first conductive line, and a second circuit board spaced apart from the first circuit board in the first direction, the second circuit board bending from the first surface to the second surface to be connected to a second end opposite to the first end of the first conductive line.Type: ApplicationFiled: February 28, 2022Publication date: November 10, 2022Inventors: MIN-HONG KIM, Hyun-Wook CHO, Taejoon KIM, Jungmok PARK
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Patent number: 11495165Abstract: A display device is described including a display panel for displaying an image and an input sensing unit disposed on the display panel for sensing a user input. The input sensing unit includes: an electrode unit including first electrodes and second electrodes which intersect each other and a control unit for determining the proximity of an object or the shape of the object, based on capacitance change values of the first electrodes and the second electrodes. In a first mode the input sensing unit is driven using a self-capacitance method. The control unit may merge the capacitance change values, and determine the proximity of the object based on the merged value. In a second mode based on mutual capacitance, the control unit may determine the shape of the object.Type: GrantFiled: December 6, 2021Date of Patent: November 8, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Woo Choi, Tae Joon Kim, Eun Sol Seo, Hyun Wook Cho
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Patent number: 11474631Abstract: An electronic device including: a display layer; and a sensor layer that includes: first electrodes in a sensing area and having different lengths; second electrodes in the sensing area; first cross electrodes in the sensing area; second cross electrodes in the sensing area and having different lengths; pads in a peripheral area; first lines extended from the first electrodes at a first side of the sensing area towards the pads; second lines extended from the second electrodes at a second side of the sensing area towards the pads; first cross lines extending from the first cross electrodes towards the pads; and second cross lines extending from the second cross electrodes towards the pads, the first lines being different from the second lines in number, and the first cross lines being different from the second cross lines in number.Type: GrantFiled: June 28, 2021Date of Patent: October 18, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jungmok Park, Tae Yong Eom, Hyun-Wook Cho, Dongjin Moon, Yeri Jeong
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Publication number: 20220326833Abstract: Disclosed is a display device including a display panel, an input sensing layer, a display controller that receives a vertical synchronization signal and a horizontal synchronization signal and controls an operation of the display panel depending on the vertical synchronization signal and the horizontal synchronization signal, and a sensing controller that receives the vertical synchronization signal and the horizontal synchronization signal and generates a driving control signal for driving the input sensing layer. One frame of the vertical synchronization signal includes a first vertical section and a second vertical section in which the display controller transmits a data signal to the display panel. The sensing controller determines an operating frequency of the driving control signal based on a horizontal synchronization signal, which is included in a first horizontal section overlapping with the first vertical section, in the horizontal synchronization signal.Type: ApplicationFiled: January 25, 2022Publication date: October 13, 2022Inventors: HYUN-WOOK CHO, MIN-HONG KIM, TAEJOON KIM, JUNGMOK PARK
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Patent number: 11467688Abstract: A display device includes a display panel including pixels, a touch panel including electrodes, a proximity sensor which is adjacent to the touch panel and detects proximity with respect to an object based on a capacitance variation, a display driver which drives the display panel and a touch controller which drives the touch panel and the proximity sensor. Here, the touch controller provides a negative voltage to the proximity sensor when the proximity sensor detects that the object approaches the proximity sensor such that a shortest distance from the object to the proximity sensor is equal to or less than a first reference distance.Type: GrantFiled: September 17, 2021Date of Patent: October 11, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Junseong Lee, Bogeun Yuk, Min-Hong Kim, Taejoon Kim, Eungkwan Lee, Hyun-Wook Cho
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Patent number: 11455066Abstract: A touch sensor for a display device includes: a base layer including first and second sensing regions adjacent to each other in a first direction and a non-sensing region surrounding at least one side of each of the first and second sensing regions; first sensors disposed in each of the first and second sensing regions and arranged along a second direction intersecting the first direction; second sensors disposed in each of the first and second sensing regions and arranged along the first direction; and at least one third sensor located in the first sensing region and the second sensing region, wherein the at least one third sensor includes first and second sub-sensors electrically separated at a boundary between the first sensing region and the second sensing region, and the first and second sub-sensors have substantially the same size.Type: GrantFiled: July 16, 2020Date of Patent: September 27, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyun Wook Cho, Ye Rin Oh, Min Hong Kim, Tae Joon Kim, Hyun Jae Lee
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Publication number: 20220291775Abstract: An electronic device includes a first electrode, a second electrode, and a third electrode. The first electrode includes a first boundary side extending in a direction. The second electrode includes a second boundary side extending in the direction. The third electrode is disposed between and spaced apart from the first electrode and the second electrode. The third electrode includes a first side facing the first boundary side and a second side facing the second boundary. The first side and the second side have shapes that are asymmetric to each other with respect to a center axis extending in the direction.Type: ApplicationFiled: May 29, 2022Publication date: September 15, 2022Inventors: Sanghyun JUN, Hwan-hee JEONG, Kicheo! KIM, Jaehyun LEE, Hyun-wook CHO
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Publication number: 20220283675Abstract: An electronic device includes a display unit including an active area configured to display an image, a peripheral area adjacent to the active area, and an input sensing unit disposed on the display unit within the active area. The input sensing unit includes a first sensing electrode disposed in the active area and a second sensing electrode spaced apart from the first sensing electrode and disposed in the active area.Type: ApplicationFiled: May 23, 2022Publication date: September 8, 2022Inventors: Eunsol SEO, Hyun-Wook CHO, Jaewoo CHOI, Taejoon KIM