Patents by Inventor Jae-Won Choi
Jae-Won Choi 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: 11818912Abstract: A display may have organic light-emitting diode pixels formed from thin-film circuitry. The thin-film circuitry may be formed in thin-film transistor (TFT) layers and the organic light-emitting diodes may include anodes and cathodes and an organic emissive layer formed over the TFT layers between the anodes and cathodes. The organic emissive layer may be formed via chemical evaporation techniques. The display may include moisture blocking structures such as organic emissive layer disconnecting structures that introduce one or more gaps in the organic emissive layer during evaporation so that any potential moisture permeating path from the display panel edge to the active area of the display is completely terminated.Type: GrantFiled: October 31, 2019Date of Patent: November 14, 2023Assignee: Apple Inc.Inventors: Tsung-Ting Tsai, Abbas Jamshidi Roudbari, Chuan-Sheng Wei, HanChi Ting, Jae Won Choi, Jianhong Lin, Nai-Chih Kao, Shih Chang Chang, Shin-Hung Yeh, Takahide Ishii, Ting-Kuo Chang, Yu Hung Chen, Yu-Wen Liu, Yu-Chuan Pai, Andrew Lin
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Patent number: 11798927Abstract: A display device includes: a substrate including a pixel area; and a pixel in the pixel area, the pixel including a first sub-light emitting area, a second sub-light emitting area, and a peripheral area surrounding the first and second sub-light emitting areas. The pixel may include: a first electrode, a second electrode, a third electrode, and a fourth electrode that are spaced from each other; a plurality of light emitting elements in the first and second sub-light emitting areas; a bank in the peripheral area and including a first opening corresponding to the first sub-light emitting area and a second opening corresponding to the second sub-light emitting area; and an intermediate bank between the first sub-light emitting area and the second sub-light emitting area and partially overlapping the second and third electrodes in a plan view.Type: GrantFiled: October 15, 2021Date of Patent: October 24, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sung Jae Yun, Sang Hoon Park, Jee Hoon Park, Dong Woo Shin, Hang Jae Lee, Jae Won Choi
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Publication number: 20230303885Abstract: A composition for a direct ink writing includes a polymeric component in latex form, where the latex includes greater than 75% solids content; and additives adapted to provide the composition with capability of being utilized as a rubber ink formulation for the direct ink writing process. A method of producing an additive manufacturing product includes steps of providing an initial polymeric component in latex form, where the initial polymeric component in latex form includes from about 50% to about 70% solids content; removing water from the initial polymeric component in latex form to thereby form a subsequent polymeric component in latex form, where the subsequent polymeric component in latex form has greater than 75% solids content; and mixing the subsequent polymeric component in latex form with additives adapted to provide a rubber ink formulation composition; and additive manufacturing the rubber ink formulation composition to thereby form a green component.Type: ApplicationFiled: March 23, 2023Publication date: September 28, 2023Inventors: Jae-Won Choi, Sarath Suresh Kamath, Myoeum Kim
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Patent number: 11762490Abstract: An electronic device may have a display with an active area configured to display images and an inactive area that is free of pixels and that does not display images. Touch sensor sense lines may have portions located in the active area and portions located in the inactive area. The active and inactive areas may be characterized by respective reflectivity values. To match the reflectivities of the active and inactive areas and thereby avoid undesired visually distinguishable differences in the appearances of these areas, the touch sensor circuitry in the inactive areas may be configured to match the reflectivity values of the active and inactive areas. Sense line portions in the inactive area may have metal traces of enhanced reflectivity and/or uneven surface topology to enhance ambient light reflections through a circular polarizer that overlaps the active and inactive areas.Type: GrantFiled: August 20, 2021Date of Patent: September 19, 2023Assignee: Apple Inc.Inventors: Kyounghwan Kim, Abbas Jamshidi Roudbari, Chia-Hsiang Chen, Chien-Ya Lee, Ching-Sang Chuang, Jae Won Choi, Jonathan H. Beck, Ming E. Tai, Warren S. Rieutort-Louis, Wen-I Hsieh, Yuchi Che
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Patent number: 11747139Abstract: A flexible display capable of improving an angle-measuring accuracy using different kinds of sensors and a method of measuring an angle thereof. The flexible display includes a first sensor unit disposed in a first region and including different kinds of sensors, a second sensor unit disposed in a second region adjacent to the first region and including different kinds of sensors, and an angle-measuring unit measuring a folding angle between the first region and the second region in response to sensing signals outputted from the first sensor unit and the second sensor unit.Type: GrantFiled: May 21, 2021Date of Patent: September 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jae-Won Choi, Chan-Sung Jung
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Publication number: 20230256759Abstract: An inkjet printing apparatus includes: a stage on which a substrate is disposed; an inkjet head disposed above the stage and spraying ink on the substrate; an ink storage that stores the ink; a first link pipe connecting the ink storage and the inkjet head and supplying the ink from the ink storage to the inkjet head; a second link pipe connecting the ink storage and the inkjet head and collecting a portion of the ink from the inkjet head to the ink storage; and a temperature controller including a cooler and a heater disposed respectively in opposite sides thereof. The portion of the ink remains in the inkjet head after the ink is ejected from the inkjet head on the substrate, the first link pipe is disposed on the heater of the temperature controller, and the second link pipe is disposed on the cooler of the temperature controller.Type: ApplicationFiled: January 27, 2023Publication date: August 17, 2023Applicant: Samsung Display Co., LTD.Inventors: Kyong Sub KIM, Sung Ho PARK, Jae Won CHOI
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Patent number: 11729505Abstract: An electronic device comprises a camera module and an image signal processor. The camera module generates and outputs gyro data and frame data for an input image. The image signal processor comprises a motion vector module which calculates motion vector information, a gyro-based motion estimator which extracts camera rotation information of the camera module from the gyro data, a motion vector-based motion estimator which extracts frame rotation information from the frame data, an optical image stabilization (OIS) two-dimensional (2D) translation information estimator which estimates OIS 2D translation information based on the motion vector information, the camera rotation information, and the frame rotation information, and a camera path optimizer which filters out a low-frequency component from the OIS 2D translation information and calculates stabilized camera motion information of the camera module using the filtered OIS 2D translation information and the camera rotation information.Type: GrantFiled: November 26, 2021Date of Patent: August 15, 2023Inventors: Hye Yun Jung, Jae Won Choi, Seung Won Choi, Yeong Min Lee
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Publication number: 20230244266Abstract: Quadrature clock generation circuits and techniques are disclosed. An example quadrature clock generator includes an in-phase (I) clock generation circuit to generate an I clock signal based on a reference clock signal, the I clock signal and the reference clock signal each having a first frequency, a quadrature phase (Q) clock generation circuit to generate a Q clock signal based on the reference clock signal, a rise time control signal, and a fall time control signal, the Q clock signal having the first frequency, and a control circuit to generate the rise time control signal and the fall time control signal based on the I clock signal and the Q clock signal.Type: ApplicationFiled: December 5, 2022Publication date: August 3, 2023Applicant: Synaptics IncorporatedInventors: Chandra Shekar Reddy AYYA, Jae Won CHOI
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Publication number: 20230175900Abstract: A tactile sensor including a first insulating layer, a first sensing layer of a first conductive soft polymer material, a second sensing layer of a second conductive soft polymer material and a second insulating layer. The first sensing layer includes first electrically conductive strip located therein and the first sensing layer is positioned above the first insulating layer. The second sensing layer includes second and third electrically conductive strips located therein and the second sensing layer is positioned above the first sensing layer. The second and third electrically conductive strips are arranged within a first plane located within the second sensing layer, separated by the second conductive soft polymer material. The first and second electrically conductive strips are arranged within a second plane transverse to the first plane, separated by the first conductive soft polymer material. The second insulating layer is positioned above the second sensing layer.Type: ApplicationFiled: December 6, 2022Publication date: June 8, 2023Inventors: Jae-Won Choi, Md. Omar Faruk Emon
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Publication number: 20230171988Abstract: An electronic device may have a display such as an organic light-emitting diode display. The organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. A first passivation layer, a first planarization layer, and a second passivation layer may be formed over the cathode. The first and second passivation layers may be formed from inorganic material. A second planarization layer may be formed over the second passivation layer between the second passivation layer and a polarizer. The second planarization layer may planarize the polarizer at the edges of the active area of the display where the polarizer would otherwise have a steep taper. Planarizing the polarizer in this way mitigates undesirable secondary reflections off of the polarizer. The first and second planarization layers may be formed from organic material.Type: ApplicationFiled: October 18, 2022Publication date: June 1, 2023Inventors: Prashant Mandlik, Bhadrinarayana Lalgudi Visweswaran, Ankit Mahajan, Chia-Hao Chang, Christopher E Glazowski, David L Wei, Hui Lu, Takahide Ishii, Themistoklis Afentakis, Han Liu, Cheng-Chih Hsieh, Asli Sirman, Shih Chang Chang, Ko-Wei Chen, Shang-Chih Lin, Tsung-Ting Tsai, Jae Won Choi, Abbas Jamshidi Roudbari, Ting-Kuo Chang, Jean-Pierre S Guillou
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Patent number: 11652960Abstract: Embodiment systems and methods for presenting a facial expression in a virtual meeting may include detecting a user facial expression of a user based on information received from a sensor of the computing device, determining whether the detected user facial expression is approved for presentation on an avatar in a virtual meeting, generating an avatar exhibiting a facial expression consistent with the detected user facial expression in response to determining that the detected user facial expression is approved for presentation on an avatar in the virtual meeting, generating an avatar exhibiting a facial expression that is approved for presentation in response to determining that the detected user facial expression is not approved for presentation on an avatar in the virtual meeting, and presenting the generated avatar in the virtual meeting.Type: GrantFiled: May 14, 2021Date of Patent: May 16, 2023Assignee: QUALCOMM IncorporatedInventors: Jae-Won Choi, Sungrack Yun, Janghoon Cho, Hanul Kim, Hyoungwoo Park, Seunghan Yang, Kyu Woong Hwang
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Patent number: 11627370Abstract: Provided is dynamically converting a video being displayed on a user device according to changes in a holding direction and a display direction of the user device. The user device may include a processor: generate a request message for requesting a predetermined video to a contents server and transmit the request message to the contents server through the communication circuit, receive the requested video from the contents server in response to the request message through the communication circuit, detect a target object from each image frame of the received video and define a region of interest based on the detected target object; determine whether error occurs in detecting the target object at each image frame and correct the region of interest when error occurs; defining a crop region based on the corrected region of interest; and converting the received video to a second video based on the crop region.Type: GrantFiled: December 28, 2021Date of Patent: April 11, 2023Assignee: KT CORPORATIONInventors: Yeong-Hwan Jeong, Jin-Hyoun Youn, Kang-Tae Lee, Jae-Won Choi
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Patent number: 11616483Abstract: An apparatus, as an electromagnetic wave back introduction blocking module connected between an ignition (IG) system and a converter, includes a front capacitor module which includes a first coil part including one or more coils having one side connected to the IG system in series and a first capacitor part connected between the other side of the first coil part and a ground, a central coil module which includes a second coil part including one or more coils having one side connected to the other side of the first coil part and a second capacitor part connected between the other side of the second coil part and the ground, and a rear capacitor module which includes a third capacitor part having one side connected to the other side of the second coil part. The rear capacitor module is connected to the converter.Type: GrantFiled: November 24, 2021Date of Patent: March 28, 2023Assignee: Hyundai Mobis Co., Ltd.Inventor: Jae Won Choi
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Publication number: 20230092986Abstract: An electronic device may include a display and an optical sensor formed underneath the display. A pixel removal region on the display may at least partially overlap with the sensor. The pixel removal region may include a plurality of non-pixel regions each of which is devoid of thin-film transistors. The plurality of non-pixel regions is configured to increase the transmittance of light through the display to the sensor. In addition to removing thin-film transistors in the pixel removal region, additional layers in the display stack-up may be removed. In particular, a cathode layer, polyimide layer, and/or substrate in the display stack-up may be patterned to have an opening in the pixel removal region. A polarizer may be bleached in the pixel removal region for additional transmittance gains. The cathode layer may be removed using laser ablation with a spot laser or blanket illumination.Type: ApplicationFiled: February 2, 2021Publication date: March 23, 2023Inventors: Warren S. Rieutort-Louis, Meng-Huan Ho, Abbas Jamshidi Roudbari, Chih Jen Yang, Chin Wei Hsu, Jae Won Choi, Jean-Pierre S. Guillou, Ming Xu, Rui Liu, Yi Qiao, Yu-Wen Liu, Yuchi Che, Yue Cui
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Patent number: 11594964Abstract: A circuit includes a controller circuit configured to receive an output voltage of a converter and adjust a switching frequency of the converter in response to a status of an output load and an output load sensing circuit configured to determine the status of the output load and provide the peak current to the controller circuit. The output load sensing circuit may include a first timer configured to provide a delayed first signal to a peak current control in response to the output load being a heavy load. A second timer may be configured to provide a delayed second signal to the peak current control in response to the output load being a light load. The peak current control may be configured to adjust a peak current based on the received first signal and the second signal and configured to provide the peak current to the controller circuit.Type: GrantFiled: December 1, 2020Date of Patent: February 28, 2023Assignee: SYNAPTICS INCORPORATEDInventors: Jae Won Choi, Dan Shen, Balakishan Challa, Lorenzo Crespi, Ketankumar B. Patel
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Patent number: 11587954Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.Type: GrantFiled: October 15, 2021Date of Patent: February 21, 2023Assignee: Apple Inc.Inventors: Vasudha Gupta, Jae Won Choi, Shih Chang Chang, Tsung-Ting Tsai, Young Bae Park
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Publication number: 20230014519Abstract: Disclosed herein is a video search device comprising: at least one processor configured to implement an updating unit generating event object information based on feature information on an object detected in a video; and a storage configured to store comparison object information containing feature information on a reference object, wherein the processor is further configured to implement: an object information generating/deleting unit configured to create information on an object having a predetermined degree of similarity between the event object information and the comparison object information as final object information, and storing the final object information in the storage; and a data searching unit searching the final object information for data that satisfies a search criterion entered by a user.Type: ApplicationFiled: September 16, 2022Publication date: January 19, 2023Applicant: HANWHA TECHWIN CO., LTD.Inventors: Jae Won CHOI, Jeong Hun LEE, Kye Won KIM, Ji Man KIM, Sang Wook LEE, Jong Hyeok LEE, Jae Woon BYUN, Ho Jung LEE, Jin Hyuk CHOI, Sweung Won CHEUNG, Yeon Woo KIM, Jin YOON
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Publication number: 20220396073Abstract: An inkjet printing apparatus includes a stage on which a target substrate is mounted, and an inkjet head positioned above the stage, wherein the inkjet head includes an ejection part including a plurality of nozzles that spray ink containing a plurality of particles, a filter part disposed above the ejection part, and selectively passing the plurality of particles, and an electric field generating electrode that is disposed in the filter part and generates an electric field in the filter part.Type: ApplicationFiled: June 2, 2022Publication date: December 15, 2022Applicant: Samsung Display Co., LTD.Inventors: Sung Ho PARK, Kyong Sub KIM, Jae Won CHOI
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Patent number: D990078Type: GrantFiled: January 4, 2021Date of Patent: June 20, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Yeon-Su Kim, Jae-Won Choi, Hyoung-Sub Choi
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Patent number: D992226Type: GrantFiled: May 4, 2021Date of Patent: July 11, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sook-Young Park, Jae-Won Choi, Yeon-Su Kim, Hyoung-Sub Choi, Se-Wook Oh