Patents by Inventor Chung-Won Choi

Chung-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).

  • Publication number: 20240147794
    Abstract: A light emitting display device includes a first display area; and a second display area disposed adjacent to the first display area, wherein the second display area includes a pixel driving part, a main light-emitting element directly connected to the pixel driving part, and an additional light-emitting element connected to the main light-emitting element, the additional light-emitting element overlaps a peripheral driving part in a plan view, the peripheral driving part generates a signal provided to the pixel driving part, the main light-emitting element and the additional light-emitting element each include a first electrode, an emission layer, and a second electrode, the pixel driving part is electrically connected to the second electrode of the main light-emitting element and the second electrode of the additional light-emitting element, and the second electrode of the additional light-emitting element and the second electrode of the main light-emitting element are separated by a separator.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 2, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Yoo Min KO, Sung Jin HONG, Ju Chan PARK, Sun Ho KIM, Hye Won KIM, Pil Suk LEE, Chung Sock CHOI
  • Publication number: 20240147775
    Abstract: A light emitting display device includes a first display area; and a second display area disposed on an external side of the first display area, wherein the second display area includes a pixel driver, a main light emitting diode electrically connected to the pixel driver, and an additional light emitting diode electrically connected to the main light emitting diode, the additional light emitting diode overlaps a peripheral driver that generates signals provided to the pixel driver, the main light emitting diode and the additional light emitting diode each include a first electrode, an emission layer, and a second electrode, and the second electrode of the main light emitting diode is electrically connected to the first electrode of the additional light emitting diode.
    Type: Application
    Filed: October 16, 2023
    Publication date: May 2, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Chung Sock CHOI, Sun Ho KIM, Yoo Min KO, Hye Won KIM, Ju Chan PARK, Pil Suk LEE, Sung Jin HONG
  • 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
  • Publication number: 20240099075
    Abstract: A display device includes: a substrate; a transistor disposed on the substrate; a first electrode disposed on the substrate; a pixel definition layer disposed on the first electrode; a separator pattern layer disposed on the pixel definition layer; a second electrode disposed on the first electrode, the pixel definition layer, and the separator pattern layer; a connection layer connected between the transistor and the second electrode; an emission layer disposed between the first electrode and the second electrode; a conductive pattern layer; and a capping member covering a side end portion of the conductive pattern layer, wherein the conductive pattern layer and the connection layer are disposed on a same layer, and a part of the second electrode disposed on the separator pattern layer and a part of the second electrode disposed around the separator pattern layer are separated from each other.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Pil Suk LEE, Yoo Min KO, Sun Ho KIM, Hye Won KIM, Ju Chan PARK, Chung Sock CHOI, Sung Jin HONG
  • Publication number: 20240099072
    Abstract: Disclosed are a display device and a method for manufacturing the same. The display device according to an embodiment includes a transistor that is disposed on a substrate, a first electrode that is disposed on the substrate, a pixel defining layer that is disposed on the first electrode, a separator pattern that is disposed on the pixel defining layer, auxiliary wiring that is disposed between the pixel defining layer and the separator pattern, a second electrode that is disposed on the first electrode, the pixel defining layer, and the separator pattern, connection wiring that connects the transistor to the second electrode, and an intermediate layer that is disposed between the first electrode and the second electrode. A portion of the second electrode disposed on the separator pattern and a portion of the second electrode disposed around the separator pattern are separated from each other.
    Type: Application
    Filed: September 19, 2023
    Publication date: March 21, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Sung Jin HONG, Sun Ho KIM, Yoo Min KO, Hye Won KIM, Ju Chan PARK, Pil Suk LEE, Chung Sock CHOI
  • Patent number: 11770961
    Abstract: An electronic device includes: a display layer; a sensor layer on the display layer and having an active area and a peripheral area adjacent to the active area, wherein the sensor layer is configured to operate in a first mode, in which a first input by an input device is sensed, and a second mode, in which a second input by touch is sensed; and a controller configured to control the sensor layer, wherein, in the first mode, the controller is configured to define the active area into a first area and a second area different from the first area, which are defined based on a coordinate at which the first input is sensed, and in the first mode, the controller is configured to provide an uplink signal to the first area and provide a reverse-phase signal having a reverse phase of the uplink signal to the second area.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: September 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinwoo Kim, Jlna Kang, Kyowon Ku, Soongyu Lee, Jeongheon Lee, Byeongkyu Jeon, Chung-Won Choi
  • Patent number: 11610431
    Abstract: A display device includes a display panel and a fingerprint authentication device disposed under the display panel. The fingerprint authentication device includes a sensor device and an optical filter. The sensor device includes a first area and a second area in a plan view and sensing light passing through the display panel. The optical filter is disposed between the display panel and the sensor device, overlaps the first area and does not overlap the second area in the plan view, and blocks the light of a certain wavelength range.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: March 21, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon Gyu Lee, Jin Woo Kim, Jin A Kang, Chung Won Choi
  • Publication number: 20220052124
    Abstract: An electronic device includes: a display layer; a sensor layer on the display layer and having an active area and a peripheral area adjacent to the active area, wherein the sensor layer is configured to operate in a first mode, in which a first input by an input device is sensed, and a second mode, in which a second input by touch is sensed; and a controller configured to control the sensor layer, wherein, in the first mode, the controller is configured to define the active area into a first area and a second area different from the first area, which are defined based on a coordinate at which the first input is sensed, and in the first mode, the controller is configured to provide an uplink signal to the first area and provide a reverse-phase signal having a reverse phase of the uplink signal to the second area.
    Type: Application
    Filed: March 19, 2021
    Publication date: February 17, 2022
    Inventors: Jinwoo KIM, JIna KANG, Kyowon KU, Soongyu LEE, Jeongheon LEE, Byeongkyu JEON, Chung-Won CHOI
  • Publication number: 20220027598
    Abstract: A display device includes a display panel and a fingerprint authentication device disposed under the display panel. The fingerprint authentication device includes a sensor device and an optical filter. The sensor device includes a first area and a second area in a plan view and sensing light passing through the display panel. The optical filter is disposed between the display panel and the sensor device, overlaps the first area and does not overlap the second area in the plan view, and blocks the light of a certain wavelength range.
    Type: Application
    Filed: March 29, 2021
    Publication date: January 27, 2022
    Inventors: Soon Gyu Lee, Jin Woo Kim, Jin A Kang, Chung Won Choi
  • Publication number: 20140144688
    Abstract: Provided are a circuit board, and a method of mounting an electronic component on the circuit board. The circuit board according to an exemplary embodiment of the present invention includes: a pad pattern including a basic pattern and one or more additional patterns connected to the basic pattern, in which the basic pattern includes a region in which a connection terminal of an electronic component is attached by solder, the one or more additional patterns include regions in which the connection terminal of the electronic component is not attached, and the basic pattern includes an exposed side or an exposed point capable of limiting a mounting position so as to prevent the electronic component from exceeding an alignment margin.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 29, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: CHUNG-WON CHOI, Seok Hwan Lee, Min-Soo Choi
  • Patent number: 8106595
    Abstract: A backlight assembly including: a plurality of lamp sockets each having a socket electrode; a plurality of lamps inserted into the plurality of lamp sockets, respectively, and each of the plurality of lamps comprising a lamp electrode connected with the socket electrode of the lamp socket in which the lamp is inserted; an inverter outputting a driving voltage for driving the plurality of lamps; and a balance board having a plurality of balance capacitors, wherein the plurality of balance capacitors are inserted into the plurality of lamp sockets, respectively, and each of the balance capacitors comprises a first balance electrode provided with the driving voltage and a second balance electrode connected with the socket electrode of the lamp socket in which the balance capacitor is inserted.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: January 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Kyou Min, Chung-Won Choi, Jin-Won Jang
  • Publication number: 20110193887
    Abstract: A transformer including; a bobbin, a coil wound to the bobbin, a core inserted within the bobbin and a soldering pin disposed connected to the bobbin, wherein the soldering pin has at least one first hole.
    Type: Application
    Filed: November 4, 2010
    Publication date: August 11, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dae-Sik LEE, Chung-Won CHOI, Gye-Won YOON, Ki-Bok JANG, Sung-Kyu PARK, Yeong-Chil HEO
  • Publication number: 20090243513
    Abstract: A backlight assembly including: a plurality of lamp sockets each having a socket electrode; a plurality of lamps inserted into the plurality of lamp sockets, respectively, and each of the plurality of lamps comprising a lamp electrode connected with the socket electrode of the lamp socket in which the lamp is inserted; an inverter outputting a driving voltage for driving the plurality of lamps; and a balance board having a plurality of balance capacitors, wherein the plurality of balance capacitors are inserted into the plurality of lamp sockets, respectively, and each of the balance capacitors comprises a first balance electrode provided with the driving voltage and a second balance electrode connected with the socket electrode of the lamp socket in which the balance capacitor is inserted.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Inventors: Byung-Kyou Min, Chung-Won Choi, Jin-Won Jang