Patents by Inventor Jiye Lee
Jiye Lee 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: 20240125940Abstract: Disclosed herein are systems, methods, and computer program products for operating a lidar system (LS). The methods comprise: receiving result values (RVs) from photodetectors (the RVs based on operations performed by each photodetector to facilitate measurements associated with a light signal reflected off an object external to LS); combining different sets of RVs to generate super pixels; using super pixels to obtain spatiotemporal coherence metrics; selecting a subset of light pulses or a group of RVs based on the spatiotemporal coherence metrics; and detecting a distance between LS and object based on the selected subset of light pulses or the selected group of RVs. The methods enable variable resolution imaging systems in which the resolution of the pixel can be configured to automatically integrate a variable number of spatial and temporal measurements that belong to the same object to improve detection quality rather than using a fixed number of measurements.Type: ApplicationFiled: October 12, 2022Publication date: April 18, 2024Applicant: LG INNOTEK CO., LTD.Inventors: Yahia Tachwali, Jiye Lee, Michael Schoenberg
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Publication number: 20240079378Abstract: A stacked IC package includes a first die including a first power transmission region, an adapter die stacked on the first die, a second die stacked on the adapter die and including a second power transmission region, and a first power transmission path electrically connected between the second power transmission region and the first power transmission region through the adapter die. The first power transmission path includes a first power transmission part penetrating a portion of the adapter die in a vertical direction from the first power transmission region, a second power transmission part including a connected part in a horizontal direction from the first power transmission part in the adapter die, and a third power transmission part connected to the second power transmission region in the vertical direction from the second power transmission part. A voltage conversion circuit is arranged on the first power transmission path.Type: ApplicationFiled: March 15, 2023Publication date: March 7, 2024Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: HUN SEONG CHOI, WOOSEOK CHANG, JUNYEON LEE, MINKYU KIM, BYUNGWOO BANG, JIYE CHOI
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Patent number: 11688363Abstract: An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.Type: GrantFiled: July 14, 2021Date of Patent: June 27, 2023Assignee: Apple Inc.Inventors: Maofeng Yang, Jiayi Jin, David A. Doyle, Yifan Zhang, Weijun Yao, Jiye Lee, Tae-Wook Koh, Mathew K. Mathai, Chuang Qian, Tsung-Ting Tsai, James P. Landry, Kiran S. Pillai, Injae Hwang, Yongjun Li
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Publication number: 20230112331Abstract: A display device includes: a display panel comprising a display area including a plurality of pixels and a non-display area disposed around the display area; and a plurality of flexible printed circuit boards disposed in the non-display area along a first edge of the display panel, where distances of a first end portion of each of the flexible printed circuit boards from the first edge are different from each other.Type: ApplicationFiled: October 11, 2022Publication date: April 13, 2023Inventors: Jiye LEE, Sooyeon KIM, Hee-Jeong SEO, Jongsoo KIM, Heen Dol KIM, Chae Hee PARK, Youngsuk JUNG
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Patent number: 11514832Abstract: A display apparatus includes a display panel, a gamma reference voltage generator and a data driver. The gamma reference voltage generator is configured to generate a gamma reference voltage. The gamma reference voltage includes a gamma amplifier configured to output the gamma reference voltage. The data driver is configured to generate a data voltage based on the gamma reference voltage and to output the data voltage to the display panel. A polarity of an offset voltage of the gamma amplifier is inverted alternately in a unit of one frame and in a unit of two frames.Type: GrantFiled: July 13, 2021Date of Patent: November 29, 2022Assignee: Samsung Display Co., Ltd.Inventors: Sooyeon Kim, Taegon Im, Jihyun Kim, Jiye Lee
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Patent number: 11488529Abstract: A current-voltage (IV) relationship of a pixel having a diode is initially determined. A first voltage is determined that does not cause the diode to emit light, and a first current across the diode is sensed by applying the first voltage. A predetermined current is determined based on the first voltage and the IV relationship. A ratio is determined based on the first current, a target current, and the predetermined current. A ratio voltage is determined by applying the ratio to a predetermined target voltage. If the first current is less than the predetermined current, then the ratio voltage is applied to supply a target current to the diode. If the first current is greater than the predetermined current, then a second voltage is determined by averaging the first test voltage and the ratio voltage, and the second voltage is applied to supply the target current to the diode.Type: GrantFiled: April 15, 2020Date of Patent: November 1, 2022Assignee: Apple Inc.Inventors: Injae Hwang, Jesun Kim, Hyunwoo Nho, Jie Won Ryu, Hyunsoo Kim, Junhua Tan, Myungjoon Choi, Rebecca Park, Shiping Shen, Sun-Il Chang, Shengkui Gao, Kingsuk Brahma, Jesse Aaron Richmond, Changki Min, Yifan Zhang, Jiye Lee, Chaohao Wang
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Patent number: 11386819Abstract: A display device includes a display panel including first and second panel pads electrically connected to each other, a connection board including first and second connection board pads connected to the first and second panel pads, respectively, an output pad, and a driving circuit. The driving circuit includes a pull-up resistor connected between a first voltage terminal and a first node, and a comparator configured to compare a voltage at the first node with a reference voltage and to output a contact test signal corresponding to a comparison result to the output pad. The first connection board pad is electrically connected to the first node, and the second connection board pad is connected to a second voltage terminal.Type: GrantFiled: June 5, 2020Date of Patent: July 12, 2022Assignee: Samsung Display Co., Ltd.Inventors: Taegon Im, Sooyeon Kim, JiYe Lee, Hee-Jeong Seo, Junghwan Cho
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Publication number: 20220093059Abstract: An electronic device may include an electronic display including display pixels to display an image based on compensated image data. The electronic display may also include a stressed reference pixel to exhibit burn-in related aging in response to one or more stress sessions and a non-stressed reference pixel configured to not undergo the one or more stress sessions. Additionally, the electronic device may include image processing circuitry to determine a panel-specific aging profile based on a comparison between one or more properties of the stressed reference pixel and the one or more properties of the non-stressed reference pixel. The image processing circuitry may also generate one or more gain maps based on the panel-specific aging profile and generate the compensated image data by applying the one or more gain maps to input image data.Type: ApplicationFiled: July 14, 2021Publication date: March 24, 2022Inventors: Maofeng Yang, Jiayi Jin, David A. Doyle, Yifan Zhang, Weijun Yao, Jiye Lee, Tae-Wook Koh, Mathew K. Mathai, Chuang Qian, Tsung-Ting Tsai, James P. Landry, Kiran S. Pillai, Injae Hwang, Yongjun Li
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Publication number: 20220093025Abstract: A display apparatus includes a display panel, a gamma reference voltage generator and a data driver. The gamma reference voltage generator is configured to generate a gamma reference voltage. The gamma reference voltage includes a gamma amplifier configured to output the gamma reference voltage. The data driver is configured to generate a data voltage based on the gamma reference voltage and to output the data voltage to the display panel. A polarity of an offset voltage of the gamma amplifier is inverted alternately in a unit of one frame and in a unit of two frames.Type: ApplicationFiled: July 13, 2021Publication date: March 24, 2022Inventors: SOOYEON KIM, Taegon Im, Jihyun Kim, Jiye Lee
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Publication number: 20210287594Abstract: Provided is a data driver including a digital to analog converter configured to convert image signal data into a plurality of data voltages, and an output buffer unit including a plurality of channels for outputting the plurality of data voltages. The output buffer unit includes a plurality of output blocks. Each output block includes one or more channels. Data voltages outputted from a first output block among the plurality of output blocks are delayed with a first time difference. Data voltages outputted from a second output block among the plurality of output blocks are delayed with a second time difference which is different from the first time difference.Type: ApplicationFiled: December 9, 2020Publication date: September 16, 2021Inventors: Sooyeon KIM, Hee-Jeong SEO, JiYe LEE, Taegon IM, JUNGHWAN CHO
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Patent number: 10997914Abstract: A system may include a display panel that includes number of pixels that display image data on a display. The system may also include a circuit that measures a voltage associated with a light-emitting diode (LED) of a pixel of the number of pixels in response to the LED receiving a current. In addition to the circuit, the system may employ data processing circuitry that may generate a calibrated prediction model based at least in part on the voltage and the current, such that the calibrated prediction model predicts a change in voltage performance of the LED as the LED ages.Type: GrantFiled: September 6, 2019Date of Patent: May 4, 2021Assignee: Apple Inc.Inventors: Injae Hwang, Jiye Lee, Yifan Zhang, Hyunwoo Nho, Sun-Il Chang, Junhua Tan, Jie Won Ryu, Hyunsoo Kim, Myungjoon Choi, Shiping Shen, Kingsuk Brahma, Jesse A. Richmond
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Publication number: 20210027680Abstract: A display device includes a display panel including first and second panel pads electrically connected to each other, a connection board including first and second connection board pads connected to the first and second panel pads, respectively, an output pad, and a driving circuit. The driving circuit includes a pull-up resistor connected between a first voltage terminal and a first node, and a comparator configured to compare a voltage at the first node with a reference voltage and to output a contact test signal corresponding to a comparison result to the output pad. The first connection board pad is electrically connected to the first node, and the second connection board pad is connected to a second voltage terminal.Type: ApplicationFiled: June 5, 2020Publication date: January 28, 2021Inventors: Taegon IM, Sooyeon KIM, JiYe LEE, Hee-Jeong SEO, Junghwan CHO
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Publication number: 20200365082Abstract: A current-voltage (IV) relationship of a pixel having a diode is initially determined. A first voltage is determined that does not cause the diode to emit light, and a first current across the diode is sensed by applying the first voltage. A predetermined current is determined based on the first voltage and the IV relationship. A ratio is determined based on the first current, a target current, and the predetermined current. A ratio voltage is determined by applying the ratio to a predetermined target voltage. If the first current is less than the predetermined current, then the ratio voltage is applied to supply a target current to the diode. If the first current is greater than the predetermined current, then a second voltage is determined by averaging the first test voltage and the ratio voltage, and the second voltage is applied to supply the target current to the diode.Type: ApplicationFiled: April 15, 2020Publication date: November 19, 2020Inventors: Injae Hwang, Jesun Kim, Hyunwoo Nho, Jie Won Ryu, Hyunsoo Kim, Junhua Tan, Myungjoon Choi, Rebecca Park, Shiping Shen, Sun-Il Chang, Shengkui Gao, Kingsuk Brahma, Jesse Aaron Richmond, Changki Min, Yifan Zhang, Jiye Lee, Chaohao Wang
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Patent number: 10453388Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements and an ambient light sensor. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history, ambient light exposure, and temperature measurements.Type: GrantFiled: April 30, 2018Date of Patent: October 22, 2019Assignee: Apple Inc.Inventors: Jiye Lee, Yifan Zhang, Chieh-Wei Chen, Tae-Wook Koh, Hongwei Chang, Paul S. Drzaic
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Patent number: 10325564Abstract: A clock generation circuit includes: a clock generator to receive a gate pulse signal and to generate at least one gate clock signal corresponding to the gate pulse signal; an over-current protector to detect a current level of the at least one gate clock signal, and to output a shutdown enable signal and at least one switching signal corresponding to the detected current level; and a switching unit including at least one switching device to output the gate pulse signal as the at least one gate clock signal. The clock generator is to generate the at least one gate clock signal in response to the shutdown enable signal, and the at least one switching device is to transmit the gate pulse signal as the at least one gate clock signal in response to the at least one switching signal.Type: GrantFiled: November 30, 2016Date of Patent: June 18, 2019Assignee: Samsung Display Co., Ltd.Inventors: Yoonsik Park, Kyunho Kim, Yu-chol Kim, Jongjae Lee, Jiye Lee, Youngsuk Jung, Hyehyun Jeong
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Publication number: 20180247588Abstract: An electronic device may be provided with a display. A content generator may generate frames of image data to be displayed on the display. The display may have an array of pixels that emit light to display images. The pixels may contain light-emitting devices such as organic light-emitting diodes, quantum dot light-emitting diodes, and light-emitting diodes formed from discrete semiconductor dies. As a result of aging, the light producing capabilities of the light-emitting devices may degrade over time. The electronic device may have a temperature sensor that gathers temperature measurements and an ambient light sensor. A pixel luminance degradation compensator may apply compensation factors to uncorrected pixel luminance values associated with the frames of image data to produce corresponding corrected pixel luminance values for the display. The compensation factors may be based on aging history information such as pixel luminance history, ambient light exposure, and temperature measurements.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Inventors: Jiye Lee, Yifan Zhang, Chieh-Wei Chen, Tae-Wook Koh, Hongwei Chang, Paul S. Drzaic
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Publication number: 20170206847Abstract: A clock generation circuit includes: a clock generator to receive a gate pulse signal and to generate at least one gate clock signal corresponding to the gate pulse signal; an over-current protector to detect a current level of the at least one gate clock signal, and to output a shutdown enable signal and at least one switching signal corresponding to the detected current level; and a switching unit including at least one switching device to output the gate pulse signal as the at least one gate clock signal. The clock generator is to generate the at least one gate clock signal in response to the shutdown enable signal, and the at least one switching device is to transmit the gate pulse signal as the at least one gate clock signal in response to the at least one switching signal.Type: ApplicationFiled: November 30, 2016Publication date: July 20, 2017Inventors: Yoonsik Park, Kyunho Kim, Yu-chol Kim, Jongjae Lee, Jiye Lee, Youngsuk Jung, Hyehyun Jeong
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Patent number: 9539736Abstract: A mechanical method for producing micro-scale and nano-scale textures that facilitates, for example, the cost-effective production of nanostructures on large-scale substrates, e.g., during the large-scale production of thin-film solar cells. A “scratcher” (multi-pointed abrasion mechanism) is maintained in a precise position relative to a target substrate such that micron-level features (protrusions) extending from the scratcher's base structure are precisely positioned to contact a surface material layer of the target substrate with a predetermined amount of force, and then moved relative to the substrate (e.g., by way of a conveying mechanism) while maintaining the pressing force such that the micron-level features define elongated parallel nano-scale grooves and/or form nano-scale ridges in the surface material layer (i.e., by mechanically displacing) portions of the surface material layer to form the nano-scale grooves/ridges).Type: GrantFiled: August 7, 2012Date of Patent: January 10, 2017Assignee: Palo Alto Research Center IncorporatedInventors: David Eric Schwartz, Matthew D. Eisaman, Sourobh Raychaudhuri, Philipp H. Schmaelzle, Robert A. Street, Sean Garner, Baomin Xu, Jiye Lee
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Publication number: 20140041504Abstract: A mechanical method for producing micro-scale and nano-scale textures that facilitates, for example, the cost-effective production of nanostructures on large-scale substrates, e.g., during the large-scale production of thin-film solar cells. A “scratcher” (multi-pointed abrasion mechanism) is maintained in a precise position relative to a target substrate such that micron-level features (protrusions) extending from the scratcher's base structure are precisely positioned to contact a surface material layer of the target substrate with a predetermined amount of force, and then moved relative to the substrate (e.g., by way of a conveying mechanism) while maintaining the pressing force such that the micron-level features define elongated parallel nano-scale grooves and/or form nano-scale ridges in the surface material layer (i.e., by mechanically displacing) portions of the surface material layer to form the nano-scale grooves/ridges).Type: ApplicationFiled: August 7, 2012Publication date: February 13, 2014Applicant: Palo Alto Research Center IncorporatedInventors: David Eric Schwartz, Matthew D. Eisaman, Sourobh Raychaudhuri, Philipp H. Schmaelzle, Robert A. Street, Sean Garner, Baomin Xu, Jiye Lee