Patents by Inventor Kyong-Tae Park

Kyong-Tae Park 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: 20160365070
    Abstract: A display device includes a display area including pixels connected to scan lines and data lines, a power supply for supplying a first power voltage to the pixels through first power lines, repair lines in parallel with the scan lines, a dummy pixel unit including dummy pixels respectively connected to the repair lines, and a sensing unit coupled to one of the repair lines that is not connected to the dummy pixels, wherein the sensing unit measures the first power voltage at a target point through the one of the repair lines that is not connected to the dummy pixels.
    Type: Application
    Filed: June 14, 2016
    Publication date: December 15, 2016
    Inventors: Kyong Tae Park, Tae Gon Kim, Dong Hoon Jeong, Yu Hyun Cho
  • Patent number: 9520457
    Abstract: A display panel and a repairing method thereof are disclosed. In one aspect, the display panel includes an active area including a plurality of pixels and a plurality of signal lines. The panel also includes a repair line at least partially surrounding the active area and overlapping the signal line in the active area and a plurality of first transistors formed on a side of the active area, wherein one end of each of the first transistors overlaps the repair line. The panel further includes a sealing portion configured to seal the active area, the repair line, and the first transistors. The panel also includes a pad portion formed outside the sealing portion and including a plurality of dummy pads respectively connected to the first transistors and a plurality of driving pads respectively connected to the signal lines.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: December 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yoon So, Kyong Tae Park, Mi Jin Yoon, Sung Ho Cho, Yu-Hyun Cho
  • Publication number: 20160335955
    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: Application
    Filed: January 11, 2016
    Publication date: November 17, 2016
    Inventors: Sung Ho Cho, Dong-Yoon So, Tae Gon Kim, Kyong Tae Park
  • Publication number: 20160335950
    Abstract: A display device and a method of repairing the same are disclosed. In one aspect, the display device includes an OLED, a repair line electrically connected to a first dummy pixel and a second dummy pixel, and a repair modulation circuit electrically connected to the first and second dummy pixels. The first dummy pixel includes a first dummy pixel driving circuit configured to output a driving current corresponding to a data voltage of a selected pixel of the OLED to the repair line, when the selected pixel becomes defective, based on a first light emission control signal. The repair modulation circuit includes a capacitor configured to be initialized before the driving current is output from the first dummy pixel driving circuit. The capacitor of the repair modulation circuit is configured to be charged with the driving current when the driving current is output from the first dummy pixel driving circuit.
    Type: Application
    Filed: April 22, 2016
    Publication date: November 17, 2016
    Inventors: Seong Yeun Kang, Kyong Tae Park
  • Publication number: 20160217735
    Abstract: An organic light emitting device having a repair line connected to an organic light emitting element of a bad pixel. A first capacitor stores a voltage corresponding to a data voltage of the bad pixel, and a driving transistor outputs a current corresponding to the voltage stored in the first capacitor to an output terminal. A first transistor is connected between the output terminal of the driving transistor and the repair line, and is turned on or turned off in response to a first signal. A second transistor is connected between the repair line and a node, and is configured to be turned on or turned off in response to a second signal. A third transistor is connected between a node and a first voltage line for supplying a first voltage, and is turned on or turned off in response to a third signal.
    Type: Application
    Filed: June 19, 2015
    Publication date: July 28, 2016
    Inventors: Kyong Tae Park, Yu-Hyun Cho
  • Patent number: 9397319
    Abstract: A display device and a method of manufacturing the display device. The display device includes: a first substrate including a display region at which pixels are located; a second substrate on the first substrate while covering the display region; a sealant between the first substrate and the second substrate and surrounding the display region; and at least one protruding pattern located at an outer side of the sealant with respect to a center of the first substrate or the second substrate, on at least one of the first substrate or the second substrate.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: July 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Moon, Kyong-Tae Park, Deok-Young Choi
  • Publication number: 20160204181
    Abstract: A display panel and a repairing method thereof are disclosed. In one aspect, the display panel includes an active area including a plurality of pixels and a plurality of signal lines. The panel also includes a repair line at least partially surrounding the active area and overlapping the signal line in the active area and a plurality of first transistors formed on a side of the active area, wherein one end of each of the first transistors overlaps the repair line. The panel further includes a sealing portion configured to seal the active area, the repair line, and the first transistors. The panel also includes a pad portion formed outside the sealing portion and including a plurality of dummy pads respectively connected to the first transistors and a plurality of driving pads respectively connected to the signal lines.
    Type: Application
    Filed: June 5, 2015
    Publication date: July 14, 2016
    Inventors: Dong-Yoon So, Kyong Tae Park, Mi Jin Yoon, Sung Ho Cho, Yu-Hyun Cho
  • Publication number: 20160189644
    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: Application
    Filed: April 29, 2015
    Publication date: June 30, 2016
    Inventors: Dong Yoon So, Tae Gon Kim, Kyong tae Park, Sung Ho Cho, Yu Hyun Cho
  • Publication number: 20160140897
    Abstract: A display device. A display including a display panel configured to include a plurality of active pixels and a plurality of dummy pixels, which are formed near the active pixels, a control driver configured to control a pixel driving circuit formed in each of the active pixels and a dummy driving circuit formed in each of the dummy pixels, wherein each of the pixel driving circuits of the active pixels includes a pixel driving transistor and each of the dummy driving circuits of the dummy pixels, which are formed at either end of the display panel in a first direction, is electrically connected at a first dummy node thereof and includes a dummy driving transistor and a first dummy capacitor, which connects a control terminal of the dummy driving transistor and the first dummy node.
    Type: Application
    Filed: May 1, 2015
    Publication date: May 19, 2016
    Inventors: Kyong Tae Park, Yu Hyun Cho
  • Publication number: 20160133195
    Abstract: A data driver supplies data voltages to data lines based on gray values corresponding to display pixels, and supplies a compensation data voltage to an auxiliary data line based on a gray value of a repaired pixel. The data driver computes a coupling voltage between the auxiliary line and the display pixels according to the gray values corresponding to the display pixels, and determines the compensation data voltage according to the coupling voltage.
    Type: Application
    Filed: July 17, 2015
    Publication date: May 12, 2016
    Inventors: Kyong-Tae PARK, Dong-Yoon SO, Sung-Ho CHO, Yu-Hyun CHO
  • Publication number: 20160125798
    Abstract: An organic light emitting display device including a display panel including a plurality of scan lines, first through (M)th data lines crossing the scan lines, and a plurality of pixels, where M is an integer greater than 1, a scan driver configured to provide scan signals to the pixels through the plurality of scan lines, a data driver configured to provide data signals to the pixels through the first through (M)th data lines, and a porch data generator configured to generate porch data based on an average value of at least a portion of frame data, and to provide the porch data to the data driver, wherein the data driver is configured to generate the data signals based on the porch data during a porch period, and to generate the data signals based on the frame data during an active period.
    Type: Application
    Filed: March 23, 2015
    Publication date: May 5, 2016
    Inventors: Kyong-Tae Park, Jin-Yup Kim, Eun-Kyung Yang
  • Publication number: 20160104430
    Abstract: An organic light emitting display device includes: data lines and auxiliary data lines, scan lines and light emission control lines crossing the data lines and the auxiliary data lines, a display area including display pixels formed at crossing regions of the data lines, the scan lines, and the light emission control lines, a non-display area including auxiliary pixels formed at crossing regions of the auxiliary data lines, the scan lines, and the light emission control lines, and auxiliary lines connected to the auxiliary pixels. Each of the auxiliary pixels may include: an auxiliary pixel driver configured to supply a driving current to a corresponding one of the auxiliary lines, and an auxiliary transistor connected to the corresponding one of the auxiliary lines and to a first power voltage line, configured to transmit a first power voltage from the first power voltage line, in response to a control signal.
    Type: Application
    Filed: June 4, 2015
    Publication date: April 14, 2016
    Inventor: Kyong-Tae Park
  • Publication number: 20160104423
    Abstract: A display device includes a plurality of pixels and a compensation power supply line. The pixels are located at intersections of data lines and gate lines. The compensation power supply line is separated from the data lines. Each of the pixels includes an in-pixel circuit and at least one out-pixel circuit. The in-pixel circuit includes a first transistor, to be controlled based on a data voltage from a corresponding one of the data lines, and a storage capacitor connecting the first transistor and a first node. The at least one out-pixel circuit receives a compensation voltage from the compensation power supply line and provides the compensation voltage to the first node.
    Type: Application
    Filed: March 10, 2015
    Publication date: April 14, 2016
    Inventors: Kyong Tae PARK, Ji Yong PARK
  • Publication number: 20160104421
    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: Application
    Filed: August 18, 2015
    Publication date: April 14, 2016
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Publication number: 20160104431
    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: Application
    Filed: June 8, 2015
    Publication date: April 14, 2016
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Publication number: 20160098956
    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: July 7, 2015
    Publication date: April 7, 2016
    Inventors: Kyong-Tae PARK, Dong-Yoon SO, Sung-Ho CHO, Yu-Hyun CHO
  • Publication number: 20160086563
    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: Application
    Filed: May 6, 2015
    Publication date: March 24, 2016
    Inventors: Kyong-Tae PARK, Seong-Yeun KANG, Jung-Hoon KIM, Tae-Gon KIM, Dong-Yoon SO
  • Publication number: 20160078811
    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: Application
    Filed: June 9, 2015
    Publication date: March 17, 2016
    Inventors: Kyong-Tae PARK, Tae-Gon KIM, Dong-Yoon SO, Sung-Ho CHO
  • Publication number: 20160078810
    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: Application
    Filed: June 1, 2015
    Publication date: March 17, 2016
    Inventors: Kyong-Tae Park, Tae-Gon Kim, Dong-Yoon So, Sung-Ho Cho
  • Publication number: 20160073030
    Abstract: A photographing apparatus and a photographing method are provided. The photographing apparatus includes: a viewfinder configured to display a live image; a display configured to display the live image and receive a touch input; and a controller configured to activate at least one selected from the viewfinder and the display according to whether a user approaches the photographing apparatus and activate a set area of a display area of the display for performing an autofocusing function in response to the viewfinder being activated. The set area is an area where a touch for setting an autofocusing area of the live image displayed through the viewfinder is input. Therefore, the user intuitively performs autofocusing on the live image with observing the live image displayed through the viewfinder.
    Type: Application
    Filed: August 12, 2015
    Publication date: March 10, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kyong-tae PARK