Patents by Inventor Wook Cho
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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Patent number: 12379001Abstract: A drive axle assembly includes a wheel bearing mounted to an axle housing, a shaft assembly including a first shaft on an inboard side thereof to which a driving force of a power train is transmitted, and a second shaft on an outboard side thereof which is shaft-connected to the inside of the axle housing by a constant-velocity joint and is separably assembled to the first shaft, and a boot assembly including a first end portion fixed to an external ring of the wheel bearing and a second end portion assembled to the shaft assembly to be rotatable relative to the shaft assembly, and configured to restrict rotation of the boot and prevent foreign substances from being introduced therein.Type: GrantFiled: August 24, 2022Date of Patent: August 5, 2025Assignees: Hyundai Motor Company, Kia Corporation, HYUNDAI WIA CorporationInventors: Sung Su Yoo, Seok Ho Bae, Hee Il Kim, Chang Hee Jeong, Yeong Wook Cho, Bum Jae Lee
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Patent number: 12369419Abstract: An image sensing device includes a pixel array configured to include a plurality of pixel groups arranged in a matrix structure. Each of the pixel groups includes an optical filter configured to selectively pass incident light, a plurality of photoelectric conversion regions disposed below the optical filter and arranged in a matrix structure, a first isolation structure disposed between the photoelectric conversion regions and other pixel groups, a plurality of second isolation structures disposed between two adjacent photoelectric conversion regions from among the photoelectric conversion regions, and a third isolation structure disposed between the second isolation structures, and configured to interconnect the second isolation structures. The third isolation structure includes a cavity region formed adjacent to contact any one of the photoelectric conversion regions.Type: GrantFiled: July 7, 2022Date of Patent: July 22, 2025Assignee: SK HYNIX INC.Inventor: Sung Wook Cho
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Publication number: 20250224840Abstract: A driving circuit includes: a display driver to generate a horizontal synchronization signal and a vertical synchronization signal according to a first clock signal of a first oscillator; a sensor driver to generate a touch signal according to a second clock signal of a second oscillator; and a determination circuit to detect a cycle of at least one of the horizontal synchronization signal or the vertical synchronization signal according to the second clock signal, and output a detection signal when the cycle is out of a range. The determination circuit is a part of the display driver or the sensor driver.Type: ApplicationFiled: March 24, 2025Publication date: July 10, 2025Inventors: Jun Young KO, Tae Hyeon YANG, Han Su CHO, Tae Joon KIM, Hyun Wook CHO, Jae Woo CHOI
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Patent number: 12356831Abstract: A display device includes display pixels arranged in a display area of a display panel, near-infrared light emitting pixels alternately arranged with the display pixels, light sensing pixels alternately arranged with the display pixels, a display scan driver that supplies display scan signals to the display pixels and the near-infrared light emitting pixels, a component detection circuit that analyzes component information according to light sensing signals reflected from a front side by using the light sensing signals received from the light sensing pixels, and a main driving circuit that controls driving timings of the display pixels, the light emitting pixels, and the display scan driver.Type: GrantFiled: March 8, 2023Date of Patent: July 8, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Soung Wook Kim, Seok Gyu Yoon, Jun Yong Shin, Jin Soo Jung, Kun Wook Cho, Min Soo Choi
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Patent number: 12340058Abstract: 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: GrantFiled: December 22, 2023Date of Patent: June 24, 2025Assignee: Samsung Display Co., Ltd.Inventors: Eunsol Seo, Hyun-Wook Cho, Jaewoo Choi, Taejoon Kim
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Publication number: 20250199598Abstract: In an embodiment, a system may include a plurality of component circuits. The plurality of component circuits may include rate control circuits the control power consumption in the component circuits based on indications of power allocated to the component circuits. In an embodiment, the rate control circuits may transmit power requests for the component circuits and a floor request representing a minimum amount of power that may ensure reliable operation.Type: ApplicationFiled: November 27, 2024Publication date: June 19, 2025Inventors: Doron Rajwan, Inder M. Sodhi, Keith Cox, Jung Wook Cho, Kevin I. Park, Tal Kuzi
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Patent number: 12321553Abstract: 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: GrantFiled: May 22, 2023Date of Patent: June 3, 2025Assignee: Samsung Display Co., Ltd.Inventors: Sanghyun Jun, Hwan-hee Jeong, Kicheol Kim, Jaehyun Lee, Hyun-wook Cho
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Publication number: 20250165100Abstract: Provided is a display device comprising a display panel, an input sensor including a first sensing area having a first sub-area and a second sub-area, and a first sensor controller configured to drive the first sensing area. Here, the input sensor includes first sensing electrodes disposed in the first sub-area to receive a first transmission signal from the first sensor controller, second sensing electrodes disposed in the first sub-area and intersected with the first sensing electrodes, third sensing electrodes disposed in the second sub-area to receive a second transmission signal having a phase inverted from that of the first transmission signal from the first sensor controller, and fourth sensing electrodes disposed in the second sub-area and intersected with the third sensing electrodes.Type: ApplicationFiled: January 2, 2025Publication date: May 22, 2025Inventors: HYUNGBAE KIM, HYUN-WOOK CHO, SANGKOOK KIM, TAEJOON KIM, JAEHYUN PARK, JIYEONG LEE
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Publication number: 20250169213Abstract: Image sensing devices are disclosed. In an embodiment, an image sensing device may include a substrate; a color filter formed over the substrate; first isolation regions formed at both sides of the color filter; and a microlens formed over the color filter, and a lower portion of the color filter may be formed in one region of an upper end of the substrate.Type: ApplicationFiled: April 10, 2024Publication date: May 22, 2025Inventor: Sung Wook CHO
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Publication number: 20250156012Abstract: A display device includes a first display panel, a second display panel disposed adjacent to the first display panel, a first touch array disposed on the first display panel, a second touch array disposed on the second display panel, a first touch driver that applies a first touch driving signal to the first touch array in response to a frame synchronization signal, a second touch driver that applies a second touch driving signal to the second touch array in response to the frame synchronization signal, and a common line commonly connected to the first and second touch drivers to transmit the frame synchronization signal, and pulses included in the first touch driving signal and pulses included in the second touch driving signal have phases opposite to each other.Type: ApplicationFiled: May 30, 2024Publication date: May 15, 2025Inventors: Yu Jin SIN, Jae Hyun PARK, IL Ho LEE, Hyun Wook CHO
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Publication number: 20250160024Abstract: In an embodiment, an image sensing device includes a pixel array including a plurality of unit pixels, wherein each of the unit pixels comprises a plurality of sub-pixels, wherein a first isolation region is formed in an edge region of the plurality of sub-pixels, wherein a second isolation region is formed from the first isolation region toward a central portion of each of the sub-pixels, wherein the second isolation region comprises: a first inner isolation region protruding from one region of the first isolation region toward the central portion of the sub-pixel; and a second inner isolation region aligned with the first inner isolation region and protruding from another region of the first isolation region toward the central portion of the sub-pixel, wherein a third isolation region is formed in a direction orthogonal to a direction in which the first inner isolation region and the second inner isolation region.Type: ApplicationFiled: April 5, 2024Publication date: May 15, 2025Inventor: Sung Wook CHO
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Publication number: 20250156013Abstract: The display device includes a first display panel, a second display panel disposed adjacent to the first display panel, a first touch array disposed on the first display panel, a second touch array disposed on the second display panel, a first touch driver that applies a first touch driving signal to the first touch array in response to a frame synchronization signal, a second touch driver that applies a second touch driving signal to the second touch array in response to the frame synchronization signal, and a common line commonly connected to the first and second touch drivers to transmit the frame synchronization signal, wherein a frequency of pulses included in the first touch driving signal is different from a frequency of pulses included in the second touch driving signal.Type: ApplicationFiled: June 6, 2024Publication date: May 15, 2025Inventors: Yu Jin SIN, Hyun Wook CHO, Jae Woo CHOI
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Patent number: 12299246Abstract: 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: December 11, 2023Date of Patent: May 13, 2025Assignee: Samsung Display Co., Ltd.Inventors: Joo-Hyeon Jeong, Taejoon Kim, Hyun-Wook Cho, Jaewoo Choi
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Publication number: 20250151439Abstract: Disclosed is an image sensing device, including: a pixel array that includes a plurality of unit pixels. A unit pixel in the pixel array may include a plurality of sub-pixels, a first isolation region may be formed in an edge region of a sub-pixel, a second isolation region may extend from the first isolation region toward a central portion of the sub-pixel, the second isolation region may include: a first inner isolation region protruding in a first direction from one region of the first isolation region to the central portion of the sub-pixel, and a second inner isolation region formed on a same straight line as the first inner isolation region and protruding in a second direction from another region of the first isolation region to the central portion of the sub-pixel, and the first inner isolation region and the second inner isolation region may have sharp end portions.Type: ApplicationFiled: March 22, 2024Publication date: May 8, 2025Inventor: Sung Wook CHO
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Publication number: 20250138070Abstract: In a method for testing an electronic device, the method includes: providing an electronic device including a display layer and a sensor layer on the display layer and configured to operate at a touch drive frequency, the sensor layer including a plurality of first electrodes and a plurality of second electrodes insulatively intersecting the plurality of first electrodes; providing a test signal having a test frequency higher than the touch drive frequency to the plurality of first electrodes; measuring mutual capacitance with the plurality of first electrodes through the plurality of second electrodes; and determining whether or not the sensor layer is defective, based on the mutual capacitance.Type: ApplicationFiled: January 7, 2025Publication date: May 1, 2025Inventors: EUNSOL SEO, HYUN-WOOK CHO, SANGKOOK KIM, TAEJOON KIM, EUNGKWAN LEE, JAEWOO CHOI
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Publication number: 20250133854Abstract: Disclosed is an image sensing device including a pixel array including a unit pixel including sub-pixels. A first isolation region is disposed in an edge region of a sub-pixel, a second isolation region extends from the first isolation region to a central portion of the sub-pixel. The second isolation region includes: a first inner isolation region protruding in a first direction from one region of the first isolation region to the central portion of the sub-pixel, and a second inner isolation region formed on a same straight line as the first inner isolation region and protruding in a second direction from another region of the first isolation region to the central portion of the sub-pixel. A first grid is formed in an upper region located above a region between the first inner isolation region and the second inner isolation region, and the first grid includes an air layer.Type: ApplicationFiled: March 8, 2024Publication date: April 24, 2025Inventor: Sung Wook CHO
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Publication number: 20250124957Abstract: A pipeline system includes a first inverter latch configured to receive plural data entries, and plural second inverter latches coupled to each other in parallel for storing the plural data entries input from the first inverter latch in a distributive manner. Plural first switches are arranged between the first inverter latch and the plural second inverter latches, each first switch configured for controlling transmission of each of the plural data entries from the first inverter latch to one of the plural second inverter latches. Plural second switches are configured to output the plural data entries stored in the plural second inverter latches.Type: ApplicationFiled: February 8, 2024Publication date: April 17, 2025Inventors: Young Seung YOO, Ji Seong MUN, Hyeon Cheon SEOL, Sung Hwa OK, Sung Wook CHO, Kyeong Min CHAE, Hyun Kyu KANG, Won Keun SONG
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Patent number: 12277298Abstract: A display device includes a display panel and an input sensing panel. The input sensing panel includes pluralities of first and second sensing electrodes and electrostatic induction patterns, each of which is connected to a sensing electrode from one of the pluralities of sensing electrodes and overlaps another sensing electrode from the other one of the pluralities of sensing electrodes. The input sensing panel includes a first area where deviations of mutual capacitances between the first and second sensing electrodes are small and a second area where the deviations are large. The electrostatic induction patterns include first electrostatic induction patterns disposed in the first area and second electrostatic induction patterns disposed in the second area, the second electrostatic induction patterns having a different area from the first electrostatic induction patterns, or the number of second electrostatic induction patterns being different from the number of first electrostatic induction patterns.Type: GrantFiled: September 29, 2023Date of Patent: April 15, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyungbae Kim, Hyun-Wook Cho, Sangkook Kim, Taejoon Kim, Jaehyun Park, Jiyeong Lee
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Patent number: 12260046Abstract: A driving circuit includes: a display driver to generate a horizontal synchronization signal and a vertical synchronization signal according to a first clock signal of a first oscillator; a sensor driver to generate a touch signal according to a second clock signal of a second oscillator; and a determination circuit to detect a cycle of at least one of the horizontal synchronization signal or the vertical synchronization signal according to the second clock signal, and output a detection signal when the cycle is out of a range. The determination circuit is a part of the display driver or the sensor driver.Type: GrantFiled: June 26, 2023Date of Patent: March 25, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jun Young Ko, Tae Hyeon Yang, Han Su Cho, Tae Joon Kim, Hyun Wook Cho, Jae Woo Choi
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Publication number: 20250077034Abstract: A display device includes a plurality of touch cells, and a central area and an edge area. The plurality of touch cells is arranged in a first direction and a second direction crossing the first direction, and is located in the central area and the edge area. The edge area includes first to fourth sub-edge areas. Shapes of touch cells in the central area are different from shapes of touch cells in the edge area. Shapes of touch cells in the first and second sub-edge areas are different from shapes of touch cells in the third and fourth sub-edge areas.Type: ApplicationFiled: April 17, 2024Publication date: March 6, 2025Inventors: Eung Kwan LEE, Tae Joon KIM, Ji Yeong LEE, Hyun Wook CHO, Jae Woo CHOI