Patents by Inventor Go-Eun CHA

Go-Eun CHA 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: 20230114518
    Abstract: An input sensing device includes sensor pixels initialized in response to a reset signal provided through a reset line, and output a sensing signal to a read-out line in response to a scan signal provided through a scan line. A controller generates at least one start signal and clock signals. A selector selectively provides the at least one start signal and the clock signals to first control lines or second control lines. A reset driver connected to the first control lines, and supplying reset signals to at least some of the reset lines based on the at least one start signal and the clock signals provided through the first control lines. A scan driver is connected to the second control lines, and supplies scan signals to at least some of the scan lines based on the at least one start signal and the clock signals.
    Type: Application
    Filed: December 12, 2022
    Publication date: April 13, 2023
    Inventors: Kyung Tea PARK, Jong Hyun LEE, Kang Bin JO, Go Eun CHA
  • Patent number: 11527192
    Abstract: An input sensing device includes sensor pixels initialized in response to a reset signal provided through a reset line, and output a sensing signal to a read-out line in response to a scan signal provided through a scan line. A controller generates at least one start signal and dock signals. A selector selectively provides the at least one start signal and the dock signals to first control lines or second control lines. A reset driver connected to the first control lines, and supplying reset signals to at least some of the reset lines based on the at least one start signal and the clock signals provided through the first control lines. A scan driver is connected to the second control lines, and supplies scan signals to at least some of the scan lines based on the at least one start signal and the clock signals.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: December 13, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung Tea Park, Jong Hyun Lee, Kang Bin Jo, Go Eun Cha
  • Publication number: 20220165834
    Abstract: A display device includes a display panel having a plurality of pixels connected to gate lines and data lines, and a plurality of fingerprint sensors connected to sensing lines and read-out lines. A gate driver provides gate signals to the gate lines and provides sensing signals to the sensing lines. The gate driver includes a first gate signal supply module providing a first gate signal to a first gate line among the gate lines. A first switching element is turned on by a reset enable signal to connect the first gate line and a first sensing line among the sensing lines.
    Type: Application
    Filed: September 13, 2021
    Publication date: May 26, 2022
    Inventors: Kang Bin Jo, Go Eun Cha, Kyung Tea Park, Jong Hyun Lee
  • Publication number: 20220085109
    Abstract: A display device is provided. The display device includes a first substrate, a first detection electrode on the first substrate, a first bank including an opening that exposes the first detection electrode, a photosensitive layer on the first detection electrode, a second detection electrode on the photosensitive layer, a first electrode on the second detection electrode, a second bank including an opening that exposes the first electrode, a light emitting layer on the first electrode, a second electrode on the light emitting layer, a first optical system between the second detection electrode and the first electrode, and a second optical system on the second electrode, wherein the first optical system and the second optical system overlap the photosensitive layer in a thickness direction of the display device.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Suk KIM, Yu Na KIM, Soo Jung LEE, Keum Dong JUNG, Go Eun CHA
  • Publication number: 20220075980
    Abstract: A display device includes a light emitting electrode on a thin film transistor layer. The thin film transistor layer includes a lower metal layer on a substrate and a semiconductor layer above and overlapping the lower metal layer. The lower metal layer includes a plurality of curved portions. Edges of respective ones of the curved portions are on concentric circles having substantially a same center point and an edge of the semiconductor layer is on the lower metal layer.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 10, 2022
    Inventors: JONG HYUN LEE, Eun Jin SUNG, Kyung Tea PARK, Kang Bin JO, Go Eun CHA
  • Publication number: 20220058363
    Abstract: A display device includes a display panel including a pinhole optical system and an optical sensor overlapping the pinhole optical system. A fingerprint detection method which detects a user's fingerprint using the display device includes obtaining fingerprint sensing data by sensing a user's fingerprint using the display device, detecting misalignment information indicating a degree of misalignment between the pinhole optical system and the optical sensor, generating calibration data using at least one piece of reference data corresponding to at least one reference folding angle according to the detected misalignment information, generating fingerprint data by correcting the fingerprint sensing data using the calibration data, and detecting the user's fingerprint according to the fingerprint data.
    Type: Application
    Filed: June 3, 2021
    Publication date: February 24, 2022
    Inventors: Seung Hyun MOON, Dong Wook Yang, Go Eun Cha, Kyung Tea Park, Kang Bin Jo
  • Publication number: 20220051609
    Abstract: An input sensing device includes sensor pixels initialized in response to a reset signal provided through a reset line, and output a sensing signal to a read-out line in response to a scan signal provided through a scan line. A controller generates at least one start signal and clock signals. A selector selectively provides the at least one start signal and the clock signals to first control lines or second control lines. A reset driver connected to the first control lines, and supplying reset signals to at least some of the reset lines based on the at least one start signal and the clock signals provided through the first control lines. A scan driver is connected to the second control lines, and supplies scan signals to at least some of the reset lines based on the at least one start signal and the clock signals.
    Type: Application
    Filed: May 26, 2021
    Publication date: February 17, 2022
    Inventors: Kyung Tea PARK, Jong Hyun LEE, Kang Bin JO, Go Eun CHA
  • Publication number: 20220050984
    Abstract: An input sensing device includes: sensor pixels, a horizontal driver, a selection circuit, and a vertical driver. Each of the sensor pixels is connected to a plurality of driving lines and a one of a plurality of signal input lines. The horizontal driver sequentially applies a horizontal driving signal to the sensor pixels through the driving lines. The selection circuit is connected to n of the signal input lines (n is a natural number of 2 or more) and to one output line. The selection circuit sequentially outputs n sensing signals received through the n signal input lines to the one output line. The vertical driver receives the n sensing signals through the one output line. The horizontal driver applies the horizontal driving signal n times to a given one of the driving lines to correspond to the n sensing signals.
    Type: Application
    Filed: May 28, 2021
    Publication date: February 17, 2022
    Inventors: KYUNG TEA PARK, Jong Hyun Lee, Kang Bin Jo, Go Eun Cha
  • Patent number: 11237683
    Abstract: A display device includes: a display panel which includes a first area and a second area; and a sensor device which overlaps the first area in a thickness direction of the display panel. The display panel includes first sensor electrodes in the first area and second sensor electrodes in the second area, and a shape of a first sensor electrode of the first sensor electrodes is different from a shape of a second sensor electrode of the second sensor electrodes.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 1, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo Jung Lee, Suk Kim, Ki Seo Kim, Yu Na Kim, Keum Dong Jung, Go Eun Cha
  • Patent number: 11183539
    Abstract: A display device is provided. The display device includes a first substrate, a first detection electrode on the first substrate, a first bank including an opening that exposes the first detection electrode, a photosensitive layer on the first detection electrode, a second detection electrode on the photosensitive layer, a first electrode on the second detection electrode, a second bank including an opening that exposes the first electrode, a light emitting layer on the first electrode, a second electrode on the light emitting layer, a first optical system between the second detection electrode and the first electrode, and a second optical system on the second electrode, wherein the first optical system and the second optical system overlap the photosensitive layer in a thickness direction of the display device.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: November 23, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suk Kim, Yu Na Kim, Soo Jung Lee, Keum Dong Jung, Go Eun Cha
  • Patent number: 11075252
    Abstract: A foldable display device includes: a first substrate, a first thin-film transistor layer on the first substrate, a light emitting element layer on the first thin-film transistor layer, and a fingerprint sensor layer to receive light reflected by an external object. The fingerprint sensor layer includes: a second substrate under the first substrate, a second thin-film transistor layer under the second substrate, and a light receiving element layer under the second thin-film transistor layer.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Go Eun Cha, Keum Dong Jung, Suk Kim, Soo Jung Lee
  • Publication number: 20210043686
    Abstract: A display device is provided. The display device includes a first substrate, a first detection electrode on the first substrate, a first bank including an opening that exposes the first detection electrode, a photosensitive layer on the first detection electrode, a second detection electrode on the photosensitive layer, a first electrode on the second detection electrode, a second bank including an opening that exposes the first electrode, a light emitting layer on the first electrode, a second electrode on the light emitting layer, a first optical system between the second detection electrode and the first electrode, and a second optical system on the second electrode, wherein the first optical system and the second optical system overlap the photosensitive layer in a thickness direction of the display device.
    Type: Application
    Filed: April 15, 2020
    Publication date: February 11, 2021
    Inventors: Suk KIM, Yu Na KIM, Soo Jung LEE, Keum Dong JUNG, Go Eun CHA
  • Publication number: 20210043692
    Abstract: A foldable display device includes: a first substrate, a first thin-film transistor layer on the first substrate, a light emitting element layer on the first thin-film transistor layer, and a fingerprint sensor layer to receive light reflected by an external object. The fingerprint sensor layer includes: a second substrate under the first substrate, a second thin-film transistor layer under the second substrate, and a light receiving element layer under the second thin-film transistor layer.
    Type: Application
    Filed: April 3, 2020
    Publication date: February 11, 2021
    Inventors: Go Eun CHA, Keum Dong JUNG, Suk KIM, Soo Jung LEE
  • Publication number: 20210026497
    Abstract: A display device includes: a display panel which includes a first area and a second area; and a sensor device which overlaps the first area in a thickness direction of the display panel. The display panel includes first sensor electrodes in the first area and second sensor electrodes in the second area, and a shape of a first sensor electrode of the first sensor electrodes is different from a shape of a second sensor electrode of the second sensor electrodes.
    Type: Application
    Filed: March 25, 2020
    Publication date: January 28, 2021
    Inventors: Soo Jung LEE, Suk KIM, Ki Seo KIM, Yu Na KIM, Keum Dong JUNG, Go Eun CHA
  • Patent number: 10056051
    Abstract: A display apparatus includes a gamma controller configured to determine whether the target pixel unit is driven in both time division method and space division method based on a plurality of comparison values and a reference condition, and an output controller configured to generate normal gamma-data of the target pixel unit using a normal gamma curve if the plurality of comparison values satisfy the reference condition and to generate high gamma-data and low gamma-data of the target pixel unit using a high gamma curve and a low gamma curve in both time division method and space division method if the plurality of comparison values do not satisfy the reference condition.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 21, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Eun Jang, Go-Eun Cha, Ji-Hye Choi, Hoi-Sik Moon, Jae-Seok Choi, Shim-Ho Yi, Jong-Hee Na, Woo-Young Lee, Woo-Jin Jung, Kang-Hyun Kim, Jun-Il Park, Jung-Suk Han, Jae-Seob Chung
  • Patent number: 9799285
    Abstract: A display apparatus includes a display panel which displays an image, a compensation area determiner which divides a display area of the display panel into a compensation area and a normal area, a compensation coefficient determiner which determines a compensation coefficient corresponding to input data of the compensation area, a compensation look up table which stores a noise compensation data which compensates a luminance difference of the compensation area by an interference noise of a light-source driving signal, and a correction data calculator which calculates a correction data corresponding to the input data of the compensation area using the compensation coefficient and the noise compensation data.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: October 24, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji-Eun Jang, Seung-Hwan Moon, Sung-In Kang, Kyun-Ho Kim, Min-Ho Park, Shim-Ho Yi, Go-Eun Cha
  • Publication number: 20160247483
    Abstract: A display apparatus includes a gamma controller configured to determine whether the target pixel unit is driven in both time division method and space division method based on a plurality of comparison values and a reference condition, and an output controller configured to generate normal gamma-data of the target pixel unit using a normal gamma curve if the plurality of comparison values satisfy the reference condition and to generate high gamma-data and low gamma-data of the target pixel unit using a high gamma curve and a low gamma curve in both time division method and space division method if the plurality of comparison values do not satisfy the reference condition.
    Type: Application
    Filed: July 23, 2015
    Publication date: August 25, 2016
    Inventors: Ji-Eun JANG, Go-Eun CHA, Ji-Hye CHOI, Hoi-Sik MOON, Jae-Seok CHOI, Shim-Ho YI, Jong-Hee NA, Woo-Young LEE, Woo-Jin JUNG, Kang-Hyun KIM, Jun-II PARK, Jung-Suk HAN, Jae-Seob CHUNG
  • Publication number: 20160155373
    Abstract: A display apparatus includes a display panel which displays an image, a compensation area determiner which divides a display area of the display panel into a compensation area and a normal area, a compensation coefficient determiner which determines a compensation coefficient corresponding to input data of the compensation area, a compensation look up table which stores a noise compensation data which compensates a luminance difference of the compensation area by an interference noise of a light-source driving signal, and a correction data calculator which calculates a correction data corresponding to the input data of the compensation area using the compensation coefficient and the noise compensation data.
    Type: Application
    Filed: May 28, 2015
    Publication date: June 2, 2016
    Inventors: Ji-Eun JANG, Seung-Hwan MOON, Sung-In KANG, Kyun-Ho KIM, Min-Ho PARK, Shim-Ho YI, Go-Eun CHA