Patents by Inventor Manhyeop Han

Manhyeop Han 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).

  • Patent number: 10956705
    Abstract: A fingerprint recognition system may comprise: a display panel configured to display an image on a screen; a light source device configured to irradiate light onto a transparent substrate disposed on the screen of the display panel; an image sensor configured to obtain a fingerprint image with light reflected from a fingerprint contacting the transparent substrate on the screen; and an image sensor controller configured to control an exposure time of the image sensor to obtain the fingerprint image based on a contrast ratio of the fingerprint image.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Manhyeop Han, Jiho Cho
  • Publication number: 20210019489
    Abstract: A display apparatus including a large-area fingerprint sensor includes a display panel displaying an image; a touch panel sensing a touch of a finger; a fingerprint sensor including a plurality of fingerprint pixels and recognizing a fingerprint of the finger; a fingerprint sensor driver driving the fingerprint sensor and including a driver driving the fingerprint sensor and a fingerprint recognizer recognizing a fingerprint by using sensing signals received from the fingerprint sensor; and a touch driver driving the touch panel, wherein the driver of the fingerprint sensor driver provides a sensing gate signal to sensing gate lines included in a first touch block determined being touched by touch position information received from the touch driver, among m (where m being an integer of 2 or greater) number of sensing gate lines included in the fingerprint sensor.
    Type: Application
    Filed: June 26, 2020
    Publication date: January 21, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Ji-Ho CHO, ManHyeop HAN, Yongkyun CHOI, Junghoon LEE
  • Patent number: 10877595
    Abstract: The present disclosure relates to a fingerprint sensor integrated type touch screen panel having at least one fingerprint/touch area and a plurality of touch areas.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: December 29, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Manhyeop Han, Guensik Lee, Kyoseop Choo
  • Publication number: 20200241686
    Abstract: A touch sensor integrated display device is provided comprising gate lines and data lines formed on a substrate to be intersected with each other, a plurality of pixel electrodes formed at intersections between the gate lines and the data lines, and a common electrode formed to overlap the plurality of pixel electrodes through an insulating film disposed between the common electrode and the plurality of pixel electrodes, wherein the common electrode includes at least two touch electrodes, each of which is connected to at least one of signal lines arranged in one of a first direction and a second direction crossing the first direction.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Cheolse KIM, Buyeol LEE, Sunjung LEE, Sangsoo HWANG, Yoonhwan WOO, Manhyeop HAN
  • Patent number: 10719172
    Abstract: A display device with a built-in optical image sensor includes a display panel, a cover substrate, and an optical image sensor. The cover substrate has light transmissivity and covers the display panel. The optical image sensor is coupled to the display panel and senses an image of a body of a user using light reflected from the body of the user in contact with the cover substrate. The display panel includes a base substrate, a pixel portion, an encapsulation film, and a touch sensing layer. The touch sensing layer includes the touch electrode portion and is disposed on the encapsulation film covering a pixel portion. A plurality of pinholes are defined in at least one layer having light absorptivity or light reflectivity of the pixel portion. The plurality of pinholes overlap the optical image sensor. Further, openings overlapping the plurality of pinholes are defined in the touch electrode portion.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: July 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: ManHyeop Han, KyoSeop Choo, BuYeol Lee, SeungMan Ryu
  • Patent number: 10714554
    Abstract: Disclosed is an electroluminescent display device integrated with image sensors, including: a display panel having a plurality of pixels; a display panel driving circuit configured to write data of an input image into the pixels during a display mode so as to display the input image with the pixels; and a sensor processing circuit configured to apply a reverse bias to Organic Light Emitting Diodes (OLEDs) disposed in at least some of the pixels during a sensor mode so as to process sensor signals received from the pixels.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: July 14, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoseop Choo, Guensik Lee, Manhyeop Han
  • Patent number: 10691910
    Abstract: A display device and a mobile information terminal including the same are disclosed. The display device includes a display panel on which a fingerprint is touched, and a fingerprint sensor coupled to the display panel configured to sense light reflected from the fingerprint on a display area of the display panel. The fingerprint sensor is attached obliquely on the display panel at a predetermined angle to a reference line parallel to a long axis of the display panel.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 23, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Guensik Lee, Kyoseop Choo, Manhyeop Han, Junghoon Lee
  • Patent number: 10649575
    Abstract: A touch sensor integrated display device is provided comprising gate lines and data lines formed on a substrate to be intersected with each other, a plurality of pixel electrodes formed at intersections between the gate lines and the data lines, and a common electrode formed to overlap the plurality of pixel electrodes through an insulating film disposed between the common electrode and the plurality of pixel electrodes, wherein the common electrode includes at least two touch electrodes, each of which is connected to at least one of signal lines arranged in one of a first direction and a second direction crossing the first direction.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 12, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Cheolse Kim, Buyeol Lee, Sunjung Lee, Sangsoo Hwang, Yoonhwan Woo, Manhyeop Han
  • Patent number: 10627938
    Abstract: A touch screen device with an integrated fingerprint sensor comprises: a touch screen having a fingerprint recognition area with fingerprint sensors and a touch recognition area with touch sensors physically separated from the fingerprint sensors; and a touch IC that drives the touch sensors and the fingerprint sensors in fingerprint sensing mode to sense fingerprint recognition information from the fingerprint sensors and touch recognition information from the touch sensors.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Junghoon Lee, Kyoseop Choo, Jiho Cho, Manhyeop Han
  • Patent number: 10613677
    Abstract: The present disclosure provides a touchscreen device with an integrated fingerprint sensor. The touchscreen device including a touchscreen having a touch area for touch sensing and a fingerprint and touch area for touch sensing and fingerprint sensing, the touch area having Tx electrodes arranged in a first direction and Rx electrodes arranged in a second direction, and the fingerprint and touch area having FTx electrodes arranged in the first direction and FRx electrodes arranged in the second direction, and a touch IC that performs touch sensing through the touch area and the fingerprint and touch area and performs fingerprint sensing through the fingerprint and touch area, wherein the Rx electrodes form a plurality of groups, and the groups are individually and separately connected to Rx lines in the boundary region between the touch area and the fingerprint and touch area.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 7, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jiho Cho, Kyoseop Choo, Manhyeop Han
  • Patent number: 10580822
    Abstract: Disclosed herein is a circuit comprising a first thin film transistor (TFT) and storage capacitor having a first electrode and a second electrode configured to face to each other. A second TFT is coupled to the capacitor, wherein a first gate electrode of the first TFT, a first electrode of the storage capacitor and a second gate electrode of the second TFT are integrally formed.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: March 3, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyoseop Choo, Guensik Lee, Manhyeop Han
  • Publication number: 20200004381
    Abstract: A display device with a built-in optical image sensor includes a display panel, a cover substrate, and an optical image sensor. The cover substrate has light transmissivity and covers the display panel. The optical image sensor is coupled to the display panel and senses an image of a body of a user using light reflected from the body of the user in contact with the cover substrate. The display panel includes a base substrate, a pixel portion, an encapsulation film, and a touch sensing layer. The touch sensing layer includes the touch electrode portion and is disposed on the encapsulation film covering a pixel portion. A plurality of pinholes are defined in at least one layer having light absorptivity or light reflectivity of the pixel portion. The plurality of pinholes overlap the optical image sensor. Further, openings overlapping the plurality of pinholes are defined in the touch electrode portion.
    Type: Application
    Filed: June 26, 2019
    Publication date: January 2, 2020
    Inventors: ManHyeop HAN, KyoSeop CHOO, BuYeol LEE, SeungMan RYU
  • Patent number: 10481741
    Abstract: A display device including a sensor screen having a touch recognition function and a fingerprint recognition function is disclosed. The display device includes a display panel having a first display area and a second display area that are adjacent to each other, a first touch sensor being disposed in the first display area, and a sensor screen having a first transparent substrate and a second transparent substrate that are sequentially disposed on the display panel, and a fingerprint sensor and a second touch sensor that are disposed between the first transparent substrate and the second transparent of the sensor screen corresponding to the second display area of the display panel.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: November 19, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Manhyeop Han, Kyoseop Choo, Buyeol Lee, Moonbong Song, Jiho Cho
  • Publication number: 20190197287
    Abstract: A fingerprint recognition system may comprise: a display panel configured to display an image on a screen; a light source device configured to irradiate light onto a transparent substrate disposed on the screen of the display panel; an image sensor configured to obtain a fingerprint image with light reflected from a fingerprint contacting the transparent substrate on the screen; and an image sensor controller configured to control an exposure time of the image sensor to obtain the fingerprint image based on a contrast ratio of the fingerprint image.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Inventors: Manhyeop HAN, Jiho CHO
  • Publication number: 20190163315
    Abstract: A touch sensor integrated display device is provided comprising gate lines and data lines formed on a substrate to be intersected with each other, a plurality of pixel electrodes formed at intersections between the gate lines and the data lines, and a common electrode formed to overlap the plurality of pixel electrodes through an insulating film disposed between the common electrode and the plurality of pixel electrodes, wherein the common electrode includes at least two touch electrodes, each of which is connected to at least one of signal lines arranged in one of a first direction and a second direction crossing the first direction.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Cheolse KIM, Buyeol LEE, Sunjung LEE, Sangsoo HWANG, Yoonhwan WOO, Manhyeop HAN
  • Publication number: 20190080140
    Abstract: A display device and a mobile information terminal including the same are disclosed. The display device includes a display panel on which a fingerprint is touched, and a fingerprint sensor coupled to the display panel configured to sense light reflected from the fingerprint on a display area of the display panel. The fingerprint sensor is attached obliquely on the display panel at a predetermined angle to a reference line parallel to a long axis of the display panel.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Inventors: Guensik LEE, Kyoseop CHOO, Manhyeop HAN, Junghoon LEE
  • Patent number: 10216971
    Abstract: A display device and a method of driving the same are disclosed. The display device includes a display panel including a first display area and a second display area that are adjacent to each other, and a first touch sensor disposed in the first display area, a sensor screen disposed on the display panel and including a fingerprint sensor and a second touch sensor at a location corresponding to the second display area of the display panel, a display touch integrated circuit (IC) configured to drive pixels of the first and second display areas and the first touch sensor, and a fingerprint touch IC configured to drive the fingerprint sensor in a portion of one frame period, in which the first touch sensor is not driven.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: February 26, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Jiho Cho, Kyoseop Choo, Buyeol Lee, Moonbong Song, Manhyeop Han
  • Publication number: 20190051694
    Abstract: Disclosed herein is a circuit comprising a first thin film transistor (TFT) and storage capacitor having a first electrode and a second electrode configured to face to each other. A second TFT is coupled to the capacitor, wherein a first gate electrode of the first TFT, a first electrode of the storage capacitor and a second gate electrode of the second TFT are integrally formed.
    Type: Application
    Filed: October 5, 2018
    Publication date: February 14, 2019
    Inventors: Kyoseop CHOO, Guensik LEE, Manhyeop HAN
  • Patent number: 10180750
    Abstract: A touch sensor integrated display device is provided comprising gate lines and data lines formed on a substrate to be intersected with each other, a plurality of pixel electrodes formed at intersections between the gate lines and the data lines, and a common electrode formed to overlap the plurality of pixel electrodes through an insulating film disposed between the common electrode and the plurality of pixel electrodes, wherein the common electrode includes at least two touch electrodes, each of which is connected to at least one of signal lines arranged in one of a first direction and a second direction crossing the first direction.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: January 15, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Cheolse Kim, Buyeol Lee, Sunjung Lee, Sangsoo Hwang, Yoonhwan Woo, Manhyeop Han
  • Patent number: 10176358
    Abstract: A touch sensing device comprises touch electrodes having a first resolution for sensing touch in the active area. The touch sensing device also includes combination touch and fingerprint electrodes having a second resolution for sensing both touch and a fingerprint in the active area, the second higher than the first resolution. The touch sensing device also includes a touch and fingerprint controller that respectively applies a touch driving voltage for sensing touch to the plurality of touch electrodes and the plurality of combination touch and fingerprint electrodes during a touch driving mode of a touch period of the touch sensing device, and the touch and fingerprint controller applies a fingerprint driving voltage for sensing a fingerprint to the plurality of combination touch and fingerprint electrodes during a fingerprint mode of the touch period.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: January 8, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Manhyeop Han, Kyoseop Choo, Moonbong Song