Patents by Inventor Jae-Sic Lee

Jae-Sic 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).

  • Publication number: 20240136208
    Abstract: A light-emitting element transfer system includes raw film cutting device for forming a transfer member by cutting a raw film, a stretching device for stretching a transfer film with a plurality of light-emitting elements disposed thereon, a circuit board support member for supporting a circuit board and transport head for adsorbing the transfer member and transferring the light-emitting elements on the transfer film onto the circuit board by using the adsorbed transfer member.
    Type: Application
    Filed: July 20, 2023
    Publication date: April 25, 2024
    Inventors: Jeong Won HAN, Chung Sic CHOI, Won Hee OH, Han Chun RYU, Jae Woo LEE
  • Patent number: 11889706
    Abstract: A display device includes a substrate, pixels each including at least one transistor, a storage capacitor connected to the at least one transistor, and a light emitting element connected to the at least one transistor, scan lines connected to each of the pixels, a data line connected to each of the pixels, and a power line supplying a first power voltage to the light emitting element. The power line includes a first conductive pattern that extends in a first direction, and is provided on a first insulating interlayer, a second conductive pattern that extends in the first direction, is provided on a second insulating interlayer, and is connected to the first conductive pattern through a first contact hole, and a third conductive pattern that extends in a second direction, is provided on a third insulating interlayer, and is connected to the second conductive pattern through a second contact hole.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 30, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung Hoon Kim, Won Kyu Kwak, Mi Hae Kim, Hyun Chol Bang, Ki Myeong Eom, Jae Sic Lee
  • Publication number: 20230266853
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 24, 2023
    Inventors: Hwa Jeong KIM, Jae Sic LEE, Na Yun KWAK, Dong Hwan KIM, Seung Woo SUNG, Min Kyu WOO, Min Ku LEE, Seong Jun LEE, Sang Jin PAK, Sang Hyun JUN
  • Patent number: 11682345
    Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Hee Jang, Kyong Hwan Oh, Jae Sic Lee
  • Patent number: 11675466
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 11637164
    Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: April 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonkyu Kwak, Jae-Sic Lee, Wonse Lee, Jinhee Jang
  • Patent number: 11594168
    Abstract: A display device includes a pixel unit including first pixels in a first pixel area, second pixels in a second pixel area, and third pixels in a third pixel area; a first scan driver including first multiplexers configured to operate in response to a first mode and a second mode different from the first mode, and to supply first scan signals to first scan lines connected to the first pixels; a second scan driver configured to supply second scan signals to second scan lines connected to the second pixels; and a third scan driver including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines connected to the third pixels.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: February 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sic Lee, Min Woo Byun, Jae Du Noh, Min Kyu Woo, Seung Yeon Cho
  • Patent number: 11581393
    Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wonkyu Kwak, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
  • Publication number: 20220343838
    Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Inventors: Jin Hee JANG, Kyong Hwan OH, Jae Sic LEE
  • Patent number: 11410598
    Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: August 9, 2022
    Inventors: Jin Hee Jang, Kyong Hwan Oh, Jae Sic Lee
  • Patent number: 11341902
    Abstract: A display device including a display panel including scan lines, emission control lines, and pixels connected to the scan lines and the emission control lines; a first emission driver sequentially providing first emission control signals to odd-numbered emission control lines among the emission control lines in a first frame section; a second emission driver sequentially providing second emission control signals to even-numbered emission control lines among the emission control lines in a second frame section that is continuous from the first frame section; and a scan driver sequentially providing scan signals to the scan lines in each of the first and second frame sections.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sic Lee, Won Kyu Kwak
  • Patent number: 11302262
    Abstract: An organic light-emitting display device includes: a data driver configured to divide one frame into an odd-numbered sub-frame and an even-numbered sub-frame, to divide frame data for implementing the one frame into odd-numbered sub-frame data and even-numbered sub-frame data, to provide the odd-numbered sub-frame data to the data lines in the odd-numbered sub-frame, and to provide the even-numbered sub-frame data to the data lines in the even-numbered sub-frame; an odd-numbered scan driver electrically connected to odd-numbered scan lines to provide an odd-numbered scan signal to the odd-numbered scan lines in the odd-numbered sub-frame; an even-numbered scan driver electrically connected to even-numbered scan lines to provide an even-numbered scan signal to the even-numbered scan lines in the even-numbered sub-frame; an emission driver to provide an emission signal to emission line groups formed by grouping the emission lines by two adjacent emission lines in the odd-numbered sub-frame and the even-numbered
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hai-Jung In, Won Kyu Kwak, Jae-Sic Lee
  • Publication number: 20220069044
    Abstract: A display device includes a display panel including pixels. One of the pixels includes a light emitting diode, a first capacitor connected between a power line receiving a power supply voltage and a first reference node, a first transistor connected between the power line and an anode of the light emitting diode, a second transistor connected between a data line and a first electrode of the first transistor, a third transistor including a plurality of sub-transistors connected between a second electrode of the first transistor and the first reference node in series, and a fourth transistor connected to a second reference node among a plurality of second reference nodes between the sub-transistors and receiving an initialization scan signal.
    Type: Application
    Filed: May 19, 2021
    Publication date: March 3, 2022
    Inventors: WONKYU KWAK, JAE-SIC LEE, WONSE LEE, JINHEE JANG
  • Publication number: 20220037451
    Abstract: An electronic apparatus includes a base substrate having a first region, a second region at least partially surrounded by the first region, and a display region at least partially surrounding the first region, a plurality of pixels disposed on the base substrate, each of which includes a transistor and a light emitting element connected to the transistor, a hole line connecting pixels with the second region interposed therebetween, and a hole pattern electrically insulated from the hole line, disposed in the first region, and at least partially surrounding the second region.
    Type: Application
    Filed: July 1, 2021
    Publication date: February 3, 2022
    Inventors: WONKYU KWAK, Jinhee Jang, Jae-Sic Lee, Minchae Kwak, Byungsun Kim, Hansol Kim, Changsoo Pyon, Jae Yong Lee, Jae-Ho Choi
  • Publication number: 20220019317
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 20, 2022
    Inventors: Hwa Jeong KIM, Jae Sic LEE, Na Yun KWAK, Dong Hwan KIM, Seung Woo SUNG, Min Kyu WOO, Min Ku LEE, Seong Jun LEE, Sang Jin PAK, Sang Hyun JUN
  • Publication number: 20210383739
    Abstract: A display device includes a pixel unit including first pixels in a first pixel area, second pixels in a second pixel area, and third pixels in a third pixel area; a first scan driver including first multiplexers configured to operate in response to a first mode and a second mode different from the first mode, and to supply first scan signals to first scan lines connected to the first pixels; a second scan driver configured to supply second scan signals to second scan lines connected to the second pixels; and a third scan driver including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines connected to the third pixels.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: Jae Sic LEE, Min Woo BYUN, Jae Du NOH, Min Kyu WOO, Seung Yeon CHO
  • Patent number: 11163412
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: November 2, 2021
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 11100843
    Abstract: A display device includes a pixel unit including first pixels in a first pixel area, second pixels in a second pixel area, and third pixels in a third pixel area; a first scan driver including first multiplexers configured to operate in response to a first mode and a second mode different from the first mode, and to supply first scan signals to first scan lines connected to the first pixels; a second scan driver configured to supply second scan signals to second scan lines connected to the second pixels; and a third scan driver including second multiplexers configured to operate in response to the first mode and the second mode, and to supply third scan signals to third scan lines connected to the third pixels.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: August 24, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Sic Lee, Min Woo Byun, Jae Du Noh, Min Kyu Woo, Seung Yeon Cho
  • Publication number: 20210193024
    Abstract: A display device according to an embodiment of the present disclosure is provided. The display device comprises a light emitting diode, a first transistor connected between an initialization power source and an anode of the light emitting diode and having a gate electrode connected to an initialization line, and an initialization driver for supplying an initialization signal to the initialization line. The initialization driver supplies the initialization signal every frame when driven at a first frequency and supplies the initialization signal every set of two or more frames when driven at a second frequency different from the first frequency.
    Type: Application
    Filed: June 22, 2020
    Publication date: June 24, 2021
    Inventors: Jin Hee JANG, Kyong Hwan OH, Jae Sic LEE
  • Publication number: 20210183302
    Abstract: A display device including a display panel including scan lines, emission control lines, and pixels connected to the scan lines and the emission control lines; a first emission driver sequentially providing first emission control signals to odd-numbered emission control lines among the emission control lines in a first frame section; a second emission driver sequentially providing second emission control signals to even-numbered emission control lines among the emission control lines in a second frame section that is continuous from the first frame section; and a scan driver sequentially providing scan signals to the scan lines in each of the first and second frame sections.
    Type: Application
    Filed: August 4, 2020
    Publication date: June 17, 2021
    Inventors: Jae Sic LEE, Won Kyu KWAK