Patents by Inventor Jung Taek Kim
Jung Taek 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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Publication number: 20230317001Abstract: A sensing circuit of a display device includes a sensing line initialization circuit which substantially simultaneously initializes a first sensing line and a second sensing line in a first sub-sensing period of a sensing period, a first line selection switch which couples the first sensing line to a sensing channel in the first sub-sensing period, a second line selection switch which couples the second sensing line to the sensing channel in a second sub-sensing period of the sensing period, and the sensing channel which samples a first sensing voltage of the first sensing line in a first sampling period of the first sub-sensing period, and samples a second sensing voltage of the second sensing line in a second sampling period of the second sub-sensing period. The second sensing line is not initialized during a period from the first sampling period to the second sampling period.Type: ApplicationFiled: November 14, 2022Publication date: October 5, 2023Inventors: HAYONG JUNG, JUNG-TAEK KIM, JOONSUK BAIK, JAEHOON SHIN, WOOK LEE
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Patent number: 11756474Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.Type: GrantFiled: December 30, 2022Date of Patent: September 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sang Su Han, Kyun Ho Kim, Seong Jun Kim, Jung Taek Kim, Hyung Keun Park, Joon Suk Baik, Se Keun Lee
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Patent number: 11749208Abstract: A display device includes: a pixel connected to each of a first scan line, a second scan line, and a data line; a scan driver supplying a first scan signal to the first scan line and a second scan signal to the second scan line; a controller dividing one frame period into an active period and a blank period and generating a count signal in which a time duration of the blank period is counted and a power control signal; a data driver supplying a data signal to the data line; and a power supply controlling a source driving voltage supplied to the data driver according to a duration of the blank period based on the power control signal. When the count signal reaches a reference value, the controller supplies a start signal for output of the first scan signal to the scan driver.Type: GrantFiled: September 20, 2022Date of Patent: September 5, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyun Ho Kim, Jung Taek Kim, Hong Kyu Kim, Hyung Keun Park, Joon Suk Baik, Young Soo Sohn, Yong Jin Shin, Se Keun Lee
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Patent number: 11741878Abstract: A display device includes a plurality of pixels, a power supply, a voltmeter, and a timing controller. The power supply is configured to generate an initialization voltage to be supplied to a sensing pixel among the pixels. The voltmeter is configured to measure a first value of the initialization voltage supplied to the sensing pixel during an active period of a frame period and a second value of the initialization voltage supplied to the sensing pixel during a vertical blank period of the frame period. The timing controller is configured to generate rewrite image data that is supplied to the sensing pixel during the vertical blank period. The rewrite image data is generated from image data applied to the pixels during the active period and a difference between the first and second values.Type: GrantFiled: September 27, 2021Date of Patent: August 29, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Taek Kim, Jae Woo Ryu, Joon Suk Baik, Se Keun Lee
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Publication number: 20230253449Abstract: A semiconductor device includes a lower pattern extending in a first direction and sheet patterns spaced apart therefrom in a second direction, a gate structure on the lower pattern and including a gate insulating layer, a gate spacer, and a gate electrode, a source/drain pattern on the lower pattern and in contact with the sheet patterns and the gate insulating layer, and a first etch blocking pattern between the gate spacer and the source/drain pattern. The gate spacer includes an inner sidewall extending in the third direction, and a connection sidewall extending from the inner sidewall in the first direction. The source/drain pattern includes a semiconductor filling layer on a semiconductor liner layer that is in contact with the sheet pattern and includes a facet surface extending from the connection sidewall. The first etch blocking pattern is in contact with the facet surface and the connection sidewall.Type: ApplicationFiled: September 26, 2022Publication date: August 10, 2023Inventors: Dong Suk Shin, Hyun-Kwan Yu, Seok Hoon Kim, Pan Kwi Park, Yong Seung Kim, Jung Taek Kim
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Patent number: 11699395Abstract: A display device according to some embodiments includes pixels divided into pixel rows arranged in a horizontal direction, and including a light emitting element, and a first transistor for applying a drive current to the light emitting element, and a sensing driver configured to receive a sensing value extracted from one or more of the pixels, wherein at least one pixel row of the pixel rows is configured to be driven in one frame including an emission period in which the light emitting element emits light after a data voltage is applied to the pixels, and an active sensing period for sensing a characteristic of the first transistor.Type: GrantFiled: June 23, 2021Date of Patent: July 11, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yun Ki Baek, Joon Chul Goh, Jung Taek Kim
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Publication number: 20230186829Abstract: A display device may include a display panel including a plurality of pixel rows, a power supply providing a power voltage to the display panel, and an overcurrent protector shutting down the power supply when at least one of the pixel rows is burnt. The overcurrent protector may include a sensing controller sensing a first current of at least one first pixel row of the display panel in a first frame period, and sensing a second current of the first pixel row in a second frame period after the first frame period when the first current is greater than or equal to a first threshold value. The overcurrent protector may further include a burnt determiner determining whether the first pixel row is burnt, and providing a shutdown signal to the power supply when the first pixel row is burnt.Type: ApplicationFiled: December 13, 2022Publication date: June 15, 2023Inventors: JAEHOON LEE, JUNG-TAEK KIM
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Patent number: 11670225Abstract: A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.Type: GrantFiled: March 21, 2022Date of Patent: June 6, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jung Taek Kim, Sang Su Han, Kyun Ho Kim, Hyung Keun Park, Joon Suk Baik, Se Keun Lee
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Patent number: 11670228Abstract: A display device includes: a display unit including a scan line, a data line, and a pixel connected to the scan line and the data line; a scan driver for supplying a scan signal to the scan line; a data driver for supplying a data signal to the data line in a display mode, supplying a first voltage and a second voltage to the data line respectively during a first period and a second period in a sensing mode, and outputting a first sensing signal and a second sensing signal by sensing a driving current of the pixel during the first period and the second period; and a timing controller for converting first image data into second image data, based on the first sensing signal and the second sensing signal.Type: GrantFiled: September 26, 2022Date of Patent: June 6, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jae Hoon Lee, Jung Taek Kim
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Publication number: 20230146329Abstract: A display device, includes: a scan driver configured to sequentially supply scan signals having a turn-on level to the first scan line and the second scan line during a first period and to concurrently supply scan signals having a turn-on level to the first scan line and the second scan line during a second period after the first period, wherein: a mask period corresponds to a difference between a start point of the second period and a start point of the first period in a next frame period, a first frame period and a second frame period have different mask periods, a third frame period between the first frame period and the second frame period has a same mask period as the first frame period, and a fourth frame period between the first frame period and the second frame period has a same mask period as the second frame period.Type: ApplicationFiled: December 30, 2022Publication date: May 11, 2023Inventors: Sang Su HAN, Kyun Ho KIM, Seong Jun KIM, Jung Taek KIM, Hyung Keun PARK, Joon Suk BAIK, Se Keun LEE
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Publication number: 20230142908Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.Type: ApplicationFiled: January 6, 2023Publication date: May 11, 2023Inventors: Jung Taek KIM, Kyun Ho KIM, Jae Woo RYU, Joon Suk BAIK, Se Keun LEE, Sang Su HAN
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Publication number: 20230133826Abstract: A display device includes: a display unit including a scan line, a data line, and a pixel connected to the scan line and the data line; a scan driver for supplying a scan signal to the scan line; a data driver for supplying a data signal to the data line in a display mode, supplying a first voltage and a second voltage to the data line respectively during a first period and a second period in a sensing mode, and outputting a first sensing signal and a second sensing signal by sensing a driving current of the pixel during the first period and the second period; and a timing controller for converting first image data into second image data, based on the first sensing signal and the second sensing signal.Type: ApplicationFiled: September 26, 2022Publication date: May 4, 2023Inventors: Jae Hoon LEE, Jung Taek KIM
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Publication number: 20230129090Abstract: A display device includes a pixel unit that includes a plurality of pixels, a compensator configured to receive sensing data from the pixel unit in a sensing period and that detects and compensates for a characteristic of the pixels, and a timing controller configured to convert an image signal received from an outside into image data.Type: ApplicationFiled: July 4, 2022Publication date: April 27, 2023Inventors: Jung Taek KIM, Byeong Doo KANG, Joon Suk BAIK, Se Keun LEE
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Patent number: 11632046Abstract: A power voltage generator includes a booster, a voltage sensor, a constant voltage controller and a constant current controller. The booster is configured to boost an input voltage to an output voltage based on an on-off operation of a switch. The voltage sensor is configured to generate a sensing voltage by sensing the output voltage. The constant voltage controller is configured to generate a first switching signal to control the switch by comparing the sensing voltage with a reference voltage. The constant current controller is configured to generate a gain based on a ratio of an electrode signal of the switch and a target signal by comparing the electrode signal of the switch with the target signal.Type: GrantFiled: May 30, 2022Date of Patent: April 18, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kyun Ho Kim, Jung-taek Kim, Joon Suk Baik, Sang Su Han, Jae Woo Ryu, Myung Ho Lee
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Publication number: 20230109314Abstract: In a display device, each of pixels includes a light emitting element and a pixel circuit which is connected to the light emitting element at a first node and drives the light emitting element in response to a corresponding driving scan signal among driving scan signals during a display period. The pixel circuit is connected to a corresponding readout line among readout lines at a second node. The sensing circuit senses a potential of the first node through the corresponding readout line during a blank period, and each of frames includes the display period and the blank period. At least two driving scan signals among the driving scan signals respectively include a plurality of rewriting periods, each of which is activated during the blank period corresponding thereto, and the rewriting periods of the driving scan signals have different durations from each other.Type: ApplicationFiled: August 9, 2022Publication date: April 6, 2023Inventors: JUNG-TAEK KIM, BYEONG-DOO KANG, JAE WOO RYU, JOONSUK BAIK, SEKEUN LEE
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Publication number: 20230070983Abstract: Disclosed are an anode for a lithium secondary battery including a porous and thin-film anode current collector layer and a method for manufacturing the same.Type: ApplicationFiled: August 30, 2022Publication date: March 9, 2023Inventors: Jong Chan Song, Jae Wook Shin, Seong Min Ha, Seung Jong Lee, Won Keun Kim, Kyoung Han Ryu, Yun Seog Lee, Ho Young Kim, Hee Dong Kwak, Jung Taek Kim, Seung Eun Paik, Chang Hyun Lim
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Publication number: 20230056095Abstract: A semiconductor device includes a substrate including a first region and a second region, a first active pattern on the first region, a first gate structure having a first width in the first direction, on the first active pattern, a first epitaxial pattern disposed in the first active pattern on a side surface of the first gate structure, a second active pattern on the second region, a second gate structure having a second width greater than the first width in the first direction, on the second active pattern and a second epitaxial pattern disposed in the second active pattern on a side surface of the second gate structure. Each of the first epitaxial pattern and the second epitaxial pattern includes silicon germanium (SiGe), and a first Ge concentration of the first epitaxial pattern is lower than a second Ge concentration of the second epitaxial pattern.Type: ApplicationFiled: May 2, 2022Publication date: February 23, 2023Inventors: Nam Kyu CHO, Sang Gil LEE, Seok Hoon KIM, Yong Seung KIM, Jung Taek KIM, Pan Kwi PARK, Dong Suk SHIN, Si Hyung LEE, Yang XU
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Patent number: 11574574Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.Type: GrantFiled: April 1, 2021Date of Patent: February 7, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Taek Kim, Kyun Ho Kim, Jae Woo Ryu, Joon Suk Baik, Se Keun Lee, Sang Su Han
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Patent number: 11569389Abstract: A semiconductor device includes a fin-type pattern on a substrate, the fin-type pattern extending in a first direction and protruding from the substrate in a third direction, a first wire pattern on the fin-type pattern, the first wire pattern being spaced apart from the fin-type pattern in the third direction, and a gate electrode extending in a second direction, which is perpendicular to the first and third directions, and surrounding the first wire pattern, the gate electrode including a first portion that overlaps with the fin-type pattern in the second direction and a second portion corresponding to a remainder of the gate electrode except for the first portion.Type: GrantFiled: September 9, 2021Date of Patent: January 31, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Moon Seung Yang, Eun Hye Choi, Seung Mo Kang, Yong Seung Kim, Jung Taek Kim, Min-Hee Choi
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Publication number: 20230016947Abstract: A display device includes: a pixel connected to each of a first scan line, a second scan line, and a data line; a scan driver supplying a first scan signal to the first scan line and a second scan signal to the second scan line; a controller dividing one frame period into an active period and a blank period and generating a count signal in which a time duration of the blank period is counted and a power control signal; a data driver supplying a data signal to the data line; and a power supply controlling a source driving voltage supplied to the data driver according to a duration of the blank period based on the power control signal. When the count signal reaches a reference value, the controller supplies a start signal for output of the first scan signal to the scan driver.Type: ApplicationFiled: September 20, 2022Publication date: January 19, 2023Inventors: Kyun Ho KIM, Jung Taek KIM, Hong Kyu KIM, Hyung Keun PARK, Joon Suk BAIK, Young Soo SOHN, Yong Jin SHIN, Se Keun LEE