Patents by Inventor Dong-Yoon So

Dong-Yoon So 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: 10255854
    Abstract: An organic light emitting display device includes a display area and a non-display area. The display area includes display pixels at crossing areas of data lines, scan lines, and emission control lines. The non-display area includes auxiliary pixels at crossing positions of auxiliary data lines, scan lines, and emission control lines. The display device also includes a scan driver to supply scan signals to the scan lines, a first data driver to supply data voltages to the data lines, a second data driver to supply an auxiliary data voltage to the auxiliary data line, and a demultiplexer between the data lines and the first data driver.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: April 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Dong-Yoon So, Sung-Ho Cho, Yu-Hyun Cho
  • Publication number: 20190103454
    Abstract: A display substrate includes a first conductive line extending along a first direction and a second conductive line partially overlapping the first conductive line with a first insulation layer in between. The second conductive line includes a first substantially linear portion and a second substantially linear portion extending along the first direction, and an angled portion disposed between the first substantially linear portion and the second substantially linear portion. At least one side surface of the angled portion extends along a second direction intersecting the first direction.
    Type: Application
    Filed: August 2, 2018
    Publication date: April 4, 2019
    Inventors: Dong-Yoon SO, Taegon KIM
  • Patent number: 10163384
    Abstract: A flat panel display includes: a substrate that includes a display region and a non-display region at a periphery of the display region; a pixel array disposed on the substrate of the display region; an input pad part disposed on the substrate of the non-display region; a bonding pad part disposed on the substrate of the non-display region, the bonding pad part including a plurality of output pads connected to the pixel array and a plurality of input pads connected to the input pad part; and a protective layer disposed on the substrate of the non-display region, the protective layer having openings formed therein that expose portions of the bonding pad part and the input pad part, wherein the opening of the protective layer is smaller than the bonding pad part, wherein the protective layer is thinner at a portion that overlaps the bonding pad part than at other portions.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Yoon So, Kyung Min Park
  • Publication number: 20180351127
    Abstract: An OLED display includes: pixel electrodes electrically connected to a thin film transistor on a substrate; a pixel defining portion including a pixel defining layer surrounding the respective pixel electrodes to define an individual pixel area, and a spacer protruding from the pixel defining layer; and a sealing substrate bonded to the substrate while maintaining a distance to the substrate by the spacer. An opaque deposition material is formed on the pixel defining portion, excluding one surface of the spacer that faces the sealing substrate, and on the pixel electrodes.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 6, 2018
    Inventors: Dong-Yoon SO, Ji-Eun Kim, Han-Soo Kim
  • Patent number: 10089925
    Abstract: An organic light emitting display device includes data lines and an auxiliary data line, scan lines and emission control lines crossing the data lines and the auxiliary data line, display pixels at crossing regions of the data lines, the scan lines and the emission control lines, auxiliary pixels at crossing regions of the auxiliary data line, the scan lines and the emission control lines, and auxiliary lines coupled to the auxiliary pixels. Each of the auxiliary pixels includes a discharge transistor coupled to one of the auxiliary lines and a first power voltage line to which a first power voltage is supplied and a discharge transistor controller including a plurality of transistors and configured to control the discharge transistor.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: October 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Publication number: 20180102083
    Abstract: A flat panel display includes: a substrate that includes a display region and a non-display region at a periphery of the display region; a pixel array disposed on the substrate of the display region; an input pad part disposed on the substrate of the non-display region; a bonding pad part disposed on the substrate of the non-display region, the bonding pad part including a plurality of output pads connected to the pixel array and a plurality of input pads connected to the input pad part; and a protective layer disposed on the substrate of the non-display region, the protective layer having openings formed therein that expose portions of the bonding pad part and the input pad part, wherein the opening of the protective layer is smaller than the bonding pad part, wherein the protective layer is thinner at a portion that overlaps the bonding pad part than at other portions.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 12, 2018
    Inventors: DONG YOON SO, KYUNG MIN PARK
  • Patent number: 9911380
    Abstract: An organic light emitting display device includes display pixels, auxiliary pixels, and a plurality of signal lines. The signal lines include data lines, auxiliary data lines, scan lines, and emission control lines. The auxiliary pixels are to be used for repairing defective ones of the display pixels. In operation, scan signals are supplied in a unit of p scan lines, A emission control signals are to be supplied in a unit of p A emission control lines, and B emission control signals are to be supplied in a unit of p B emission control lines, where p?2.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: March 6, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Patent number: 9886902
    Abstract: An organic light emitting display device, includes: pixels connected to scan lines, light emission lines, and data lines crossing the scan lines and the light emission lines, and including organic light emitting diodes, and pixel driving circuits to output a driving current to the organic light emitting diodes, respectively; a plurality of dummy driving circuits to output a dummy driving current; a dummy data line to apply a dummy data voltage to the plurality of dummy driving circuits; and a plurality of repair lines to electrically connect each of the organic light emitting diodes to at least one of the plurality of dummy driving circuits, wherein each of the dummy driving circuits corresponds to at least two of the repair lines, and each of the organic light emitting diodes is to be electrically connected to corresponding ones of the dummy driving circuits through corresponding ones of the repair lines.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Patent number: 9869904
    Abstract: A liquid crystal display apparatus is disclosed.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yoon So, Yong-Je Jeon, Sun-Kyo Jung
  • Publication number: 20180012544
    Abstract: An organic light emitting display device includes a display area and a non-display area. The display area includes display pixels at crossing areas of data lines, scan lines, and emission control lines. The non-display area includes auxiliary pixels at crossing positions of auxiliary data lines, scan lines, and emission control lines. The display device also includes a scan driver to supply scan signals to the scan lines, a first data driver to supply data voltages to the data lines, a second data driver to supply an auxiliary data voltage to the auxiliary data line, and a demultiplexer between the data lines and the first data driver.
    Type: Application
    Filed: September 20, 2017
    Publication date: January 11, 2018
    Inventors: Kyong-Tae PARK, Dong-Yoon SO, Sung-Ho CHO, Yu-Hyun CHO
  • Patent number: 9858860
    Abstract: An organic light-emitting diode display is disclosed. In one aspect, the display includes a substrate including a display area configured to display an image and a peripheral area surrounding the display area, a plurality of scan lines formed over the substrate and a plurality of data lines crossing the scan lines. A plurality of pixels is formed in the display area and electrically connected to the scan lines and the data lines, a repair ring is formed in the peripheral area and surrounding the display area, and the repair ring includes a first portion and a connecting portion different from the first portion. The first portion has a width less than that of the connecting portion different from the first portion. A driving circuit is configured to generate a data signal that is output to the data lines and the repair ring.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: January 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Ho Cho, Dong-Yoon So, Tae Gon Kim, Kyong Tae Park
  • Patent number: 9852686
    Abstract: A display device is disclosed. In one aspect, the display device includes a display panel including a display area and a non-display area surrounding the display area. The display device also includes a plurality of active pixels formed in the display area extending in first and second directions as a matrix, a plurality of dummy pixels formed in the non-display area and extending in the second direction, a repair test line and one or more active pixel test lines formed in the non-display area and extending in the first direction, a plurality of scan lines electrically connected to the active pixels and the dummy pixels and extending in the first direction, a plurality of data lines electrically connected to the active pixels and extending in the second direction, and at least one dummy data line electrically connected to the dummy pixels and extending in the second direction.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Yoon So, Tae Gon Kim, Kyong tae Park, Sung Ho Cho, Yu Hyun Cho
  • Publication number: 20170301739
    Abstract: An organic light emitting device includes a first substrate including a display area and a non-display area, and a dummy metal layer disposed o the first substrate in the non-display area. The dummy metal layer includes a first dummy metal layer and a second dummy metal layer that overlap each other. The organic light emitting device further includes an insulating layer disposed between the first dummy metal layer and the second dummy metal layer in a cross-sectional view, a second substrate covering the first substrate, and a sealant disposed between the first substrate and the second substrate and overlapping the dummy metal layer. The first dummy metal layer is electrically connected to the second dummy metal layer, and the sealant contacts the second dummy metal layer.
    Type: Application
    Filed: December 21, 2016
    Publication date: October 19, 2017
    Inventors: KYUNG MIN PARK, DONG-YOON SO
  • Patent number: 9792856
    Abstract: An organic light emitting display device includes a display area and a non-display area. The display area includes display pixels at crossing areas of data lines, scan lines, and emission control lines. The non-display area includes auxiliary pixels at crossing positions of auxiliary data lines, scan lines, and emission control lines. The display device also includes a scan driver to supply scan signals to the scan lines, a first data driver to supply data voltages to the data lines, a second data driver to supply an auxiliary data voltage to the auxiliary data line, and a demultiplexer between the data lines and the first data driver.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: October 17, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Dong-Yoon So, Sung-Ho Cho, Yu-Hyun Cho
  • Patent number: 9779668
    Abstract: An organic light emitting display device including data lines, an auxiliary data line, and a compensation data line, a display area including display pixels connected to the data lines, a nondisplay area including auxiliary pixels connected to the auxiliary data line, and compensation pixels connected to the compensation data line, and auxiliary lines connected to the auxiliary pixels and the compensation pixels.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: October 3, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Patent number: 9767722
    Abstract: Provided is a display device including: a plurality of pixels; a plurality of data lines connected to the plurality of pixels; a data driver configured to generate a data voltage applied to the plurality of pixels; a plurality of fan-out lines configured to connect the plurality of data lines and the data driver; a sealant at a periphery of a display area in which the plurality of pixels and the plurality of data lines are arranged, and configured to seal the display area; a metal layer below the sealant; and a repair line configured to connect the data driver and the metal layer.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: September 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Yong Park, Tae Gon Kim, Dong-Yoon So, Sung Ho Cho
  • Patent number: 9754532
    Abstract: A pixel repair circuit and organic light-emitting diode (OLED) display having the same are disclosed. In one aspect, the pixel repair circuit includes an emission controller configured to control the emission current and a repair line initialization unit configured to initialize the repair line. The pixel repair circuit further includes a current mirror unit configured to provide a mirror current of the emission current to the repair line initialization unit, wherein the current mirror unit is connected between a power supply voltage and the emission controller. The pixel repair circuit also includes a first emission switch configured to control an electrical connection between the emission controller and the current mirror unit based on an emission control signal and a second emission switch configured to control an electrical connection between the emission controller and the repair line based on the emission control signal.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: September 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Patent number: 9734786
    Abstract: A source drive integrated circuit includes a source driving circuit, output buffers, and voltage protection circuits. The source driving circuit generates data voltages according to a source timing control signal and digital video data. The output buffers output the data voltages from the source driving circuit to output terminals. The voltage protection circuits are connected between the output buffers and the output terminals. A voltage supplied to at least one of the voltage protection circuits is different from a voltage supplied to remaining ones of the voltage protection circuits.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: August 15, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Tae Park, Seong-Yeun Kang, Jung-Hoon Kim, Tae-Gon Kim, Dong-Yoon So
  • Patent number: 9711585
    Abstract: An organic light emitting diode display according to an example embodiment of the present invention includes: a substrate; a scan line and a data line that are insulated from one another and crossing each other on the substrate; a first transistor on the substrate and connected to the scan line and the data line; a second transistor connected to the first transistor; a first electrode connected to the second transistor and having a cutout; an organic emission layer on the first electrode; and a second electrode on the organic emission layer, wherein the cutout is at a position corresponding to the data line.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong Chul Kim, Dong-Yoon So, Tae Gon Kim
  • Patent number: 9548341
    Abstract: OLED display that includes: a substrate; a plurality of thin film transistors formed on the substrate; a plurality of first electrodes respectively connected to the thin film transistors; a pixel definition layer formed on the substrate and having a first opening, a second opening, and a third opening respectively exposing first, second, and third first electrodes of the plurality of first electrodes; an emission layer formed at the first opening, the second opening, and the third opening; and a second electrode formed on the emission layer, wherein the first opening has a first pair of boundary lines facing each other and a second pair of boundary lines facing each other, and the first pair of boundary lines overlap boundary lines of a pair of boundary lines of the first first electrode or are positioned outside the boundary lines of the pair of boundary lines of the first first electrode.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: January 17, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong-Yoon So, Ji-Eun Kim, Han-Soo Kim, Young-Jun Chung