Patents by Inventor Deok Young Choi

Deok Young 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: 20160217743
    Abstract: An organic light emitting diode display including: a substrate; a plurality of first signal lines on the substrate extending in a first direction; a first insulating layer covering the substrate and the first signal lines; a plurality of auxiliary signal lines formed on the first insulating layer and overlapping the first signal lines; a second insulating layer covering the auxiliary signal lines; a plurality of first signal line connecting members formed on the second insulating layer while overlapping parts of the auxiliary signal lines; a plurality of second signal lines crossing the first signal lines; a plurality of switching transistors and a plurality of driving transistors connected with the first signal lines and the second signal lines; and a plurality of organic light emitting diodes electrically connected to the driving transistors, where the first signal line connecting members connect the first signal lines to the auxiliary signal lines.
    Type: Application
    Filed: July 1, 2015
    Publication date: July 28, 2016
    Inventors: Deuk Jong Kim, Tak-Young Lee, Won Kyu Lee, Hae-Yeon Lee, Ji Hye Kong, Hyun Tae Kim, Yong Sung Park, Yong Ho Yang, Dong-Beom Lee, Deok-Young Choi
  • 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: 20160148988
    Abstract: An organic light emitting device includes: a first transistor including a source electrode connected to a data line and a gate electrode connected to a scan line; a second transistor including a source electrode connected to a driving voltage and a gate electrode connected to a drain electrode of the first transistor; a capacitor connected between the gate electrode of the second transistor and the source electrode of the second transistor; an organic light emitting diode connected to a drain electrode of the second transistor; and a third transistor connected to the organic light emitting diode and a common voltage.
    Type: Application
    Filed: September 18, 2015
    Publication date: May 26, 2016
    Inventors: Young Jin Cho, Deok-Young Choi, Young-In Hwang, Chul Kyu Kang, Yong Jae Kim
  • Patent number: 9305478
    Abstract: An OLED display device includes first and second group pixels that emit light during first and second fields, respectively; first and second scan lines respectively coupled to the first and second group pixels; and first and second power lines for respectively supplying first and second power voltages to the first and second group pixels. The first and second power lines are coupled with first electrodes of the respective storage capacitors of the first and second group pixels, and the first power voltage is supplied as a first level voltage for a first period during which the first group pixels concurrently emit light. The first and second power lines are coupled with first electrodes of the respective storage capacitors of the first and second group pixels, and the first power voltage is supplied as a first level voltage for a first period during which the first group pixels concurrently emit light.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: April 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Wook Park, Ki-Nyeng Kang, Deok-Young Choi
  • Patent number: 9293516
    Abstract: A display device comprises a substrate, a first pixel on the substrate, the first pixel comprising a first subpixel, a second subpixel, and a third subpixel, a second pixel on the substrate, the second pixel comprising a fourth subpixel, a fifth subpixel, and a sixth subpixel, first, second, third and fourth power supply lines extending in one direction and respectively coupled to the first, third, fifth, and sixth subpixels, and fifth and sixth power supply lines crossing the first, second, third, and fourth power supply lines and respectively coupled to the fourth and second subpixels.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: March 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Deok-Young Choi, Wang-Jo Lee
  • Patent number: 9293738
    Abstract: Provided are an organic light-emitting display (OLED) and a method of manufacturing the same. According to an aspect of the present invention, there is provided an OLED comprising a substrate which comprises a display area and a non-display area adjacent to the display area, an organic light-emitting device which is located on the display area of the substrate and comprises a first electrode, an organic light-emitting layer and a second electrode stacked sequentially, a power supply plate which is located on the non-display area of the substrate, and an extension electrode which is located on the non-display area of the substrate and extends from the second electrode to be connected to the power supply plate, wherein at least one recess pattern is formed on the power supply plate, and the extension electrode covers the recess pattern.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Park, Jeong Hwan Kim, Deok Young Choi
  • Publication number: 20150294620
    Abstract: An organic light-emitting display panel including a plurality of pixels arranged at a display area in column and row directions, the plurality of pixels being configured to receive power voltages; a voltage line associated with a pixel column, the voltage line being configured to apply a power voltage to the plurality of pixels included in the pixel column, the power voltage being supplied from a power line; and an auxiliary line coupled to a center node of the voltage line, the center node being located at a middle point of the voltage line, wherein the power voltage supplied from the power line is configured to be applied to the voltage line through the center node.
    Type: Application
    Filed: September 3, 2014
    Publication date: October 15, 2015
    Inventors: Young-Jin Cho, Deok-Young Choi, Young-In Hwang
  • Publication number: 20150263308
    Abstract: Provided are an organic light-emitting display (OLED) and a method of manufacturing the same. According to an aspect of the present invention, there is provided an OLED comprising a substrate which comprises a display area and a non-display area adjacent to the display area, an organic light-emitting device which is located on the display area of the substrate and comprises a first electrode, an organic light-emitting layer and a second electrode stacked sequentially, a power supply plate which is located on the non-display area of the substrate, and an extension electrode which is located on the non-display area of the substrate and extends from the second electrode to be connected to the power supply plate, wherein at least one recess pattern is formed on the power supply plate, and the extension electrode covers the recess pattern.
    Type: Application
    Filed: July 30, 2014
    Publication date: September 17, 2015
    Inventors: Sun Park, Jeong Hwan Kim, Deok Young Choi
  • Publication number: 20150187859
    Abstract: A display device comprises a substrate, a first pixel on the substrate, the first pixel comprising a first subpixel, a second subpixel, and a third subpixel, a second pixel on the substrate, the second pixel comprising a fourth subpixel, a fifth subpixel, and a sixth subpixel, first, second, third and fourth power supply lines extending in one direction and respectively coupled to the first, third, fifth, and sixth subpixels, and fifth and sixth power supply lines crossing the first, second, third, and fourth power supply lines and respectively coupled to the fourth and second subpixels.
    Type: Application
    Filed: July 10, 2014
    Publication date: July 2, 2015
    Inventors: Deok-Young Choi, Wang-Jo Lee
  • Patent number: 9007283
    Abstract: A pixel and display having the pixel are disclosed. The pixel includes transistors along a leakage path from a storage capacitor. The pixel also includes transistors to apply a reference voltage to the leakage path to minimize leakage.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Deok-Young Choi
  • Publication number: 20140353671
    Abstract: A display device may include a display area for displaying an image. The display device may further include a peripheral area that surrounds the display area. The display device may further include a pixel disposed in the display area. The display device may further include a bus line disposed in the peripheral area and configured to transmit a signal. The display device may further include a connection conductor set electrically connected to the bus line. The display device may further include a branch line electrically connected to the connection conductor set, configured to receive the signal from the bus line, and configured to transmit the signal to the pixel, wherein a portion of the branch line is disposed in the display area.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Mi CHOI, Dong-Gyu KIM, Young-In HWANG, Deok-Young CHOI, Seong-Il PARK
  • Publication number: 20140292185
    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: Application
    Filed: September 3, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung-Jae Moon, Kyong-Tae Park, Deok-Young Choi
  • Patent number: 8817008
    Abstract: A pixel of a display with reduced leakage current is disclosed. The pixel includes: an organic light emitting diode; a first transistor for controlling an amount of current flowing from a first power source to a second power source via the organic light emitting diode; a storage capacitor coupled between the first power source and a gate electrode of the first transistor; a plurality of third transistors coupled between the gate electrode and a second electrode of the first transistor; and a plurality of fourth transistors coupled between the gate electrode of the first transistor and an initialization power source. The third and fourth transistors are configured to reduce a leakage current from the storage capacitor to improve the image quality of the display.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Sung Park, Bo-Yong Chung, Deok-Young Choi
  • Patent number: 8810552
    Abstract: A scan driver includes scan driving blocks, each including: a first transistor including a gate coupled to a first node and receiving a first clock signal, a first electrode receiving an output control signal, and a second electrode coupled to a scan line at first output; a second transistor including a gate coupled to a second node receiving an input signal according to a second clock signal, and first and second electrodes respectively coupled to a third clock input and the first output; a third transistor including a gate coupled to the first node, a first electrode receiving the output control signal, and a second electrode coupled to an input terminal of a next scan driving block at a second output; and a fourth transistor including a gate coupled to the second node, and first and second electrodes respectively coupled to the third clock input and the second output.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: August 19, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park, Deok-Young Choi
  • Patent number: 8797314
    Abstract: An organic electro-luminescent display apparatus can compensate for the threshold voltage and voltage drop of the driving transistor. The organic electro-luminescent display apparatus divides and drives an initialization time, thereby improving a contrast ratio. The organic electro-luminescent display apparatus minimizes or reduces the change of a current due to a leakage current by correcting the leakage current corresponding to a data voltage with a fixed power source, thereby improving crosstalk. The organic electro-luminescent display apparatus adjusts the duty of the emission control signal, thereby removing or reducing motion blur.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 5, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Yong Chung, Yong-Sung Park, Deok-Young Choi
  • Patent number: 8786591
    Abstract: A pixel capable of reducing leakage current (to display an image with desired brightness) is provided. The pixel includes: an organic light emitting diode (OLED) coupled to a second power source; a first transistor for controlling an amount of current that flows from a first power source to the second power source via the OLED; a second transistor coupled between a data line and the first transistor, and configured to turn on when a scan signal is supplied to a scan line; a third transistor and a fourth transistor serially coupled between the first transistor and an initializing power source; and a fifth transistor coupled between a first node coupled to a gate electrode of the first transistor, and a second node that is a common node between the third transistor and the fourth transistor, and configured to turn off in a period where current is supplied to the OLED.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Sung Park, Deok-Young Choi, Ji-Hye Eom
  • Patent number: 8754875
    Abstract: A light sensing circuit of a touch panel includes a photodiode including an anode and a cathode; a driving transistor including a gate electrode connected to the cathode of the photodiode, a first electrode to receive a first ground voltage, and a second electrode; a first switching transistor including a first electrode connected to the second electrode of the driving transistor, a second electrode to output a data signal, and a gate electrode to receive a scan signal; a first capacitor including a first terminal connected to the cathode of the photodiode, and a second terminal; and a voltage compensating unit to apply a compensation voltage to the second terminal of the first capacitor.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: June 17, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Sung Ahn, Yong-Sung Park, Do-Youb Kim, Deok-Young Choi, In-Ho Choi
  • Patent number: 8704812
    Abstract: A light sensing circuit, a method of controlling the same, and a touch panel including the light sensing circuit. In the method of controlling the light sensing circuit, including sensing light incident on a photodiode, generating current corresponding to the brightness of the sensed light, amplifying the current using a driving transistor, and outputting the amplified current, the ambient temperature is sensed, and a time period during which the light is sensed by the photodiode or the amplified current is output is controlled by the sensed ambient temperature. Thus, the sensitivity of the light sensing circuit may be constantly maintained without being influenced by the ambient temperature.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Deok-Young Choi, Yong-Sung Park, Do-Youb Kim, Soon-Sung Ahn, In-Ho Choi
  • Patent number: 8669923
    Abstract: A pixel includes: an OLED; a first transistor having a first electrode coupled to a power source and a second electrode coupled to the OLED and configured to control a magnitude of current supplied to the OLED; a third transistor having a first electrode coupled a first node and a second electrode coupled to a gate electrode of the first transistor; a capacitor coupled between the first node and a second electrode of the first transistor; a second transistor having a first electrode coupled to the first node and a second electrode coupled to a data line and configured to be turned on when the third transistor is turned off; and a fourth transistor having a first electrode coupled to a gate electrode of the first transistor and a second electrode coupled to a reference power source and configured to be turned on and off concurrently with the second transistor.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: March 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: In-Ho Choi, Yong-Sung Park, Deok-Young Choi, Soon-Sung Ahn, Chul-Kyu Kang
  • Patent number: 8624874
    Abstract: A photo sensing device, a photo sensing circuit, a touch panel, and a method of sensing an output value of a photo sensing element, in order to remove the influence of a threshold voltage. The device includes a photo sensing unit generating a sensing current according to an intensity of incident light, a driving unit outputting a driving current according to the sensing current generated by the photo sensing unit, and a scanning unit outputting on a data line the driving current of the driving unit in a first mode corresponding to the photo sensing unit gathering light for a predetermined period of time and outputting the driving current in a second mode corresponding to the photo sensing unit initializing.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Deok-Young Choi, Yong-Sung Park, Do-Youb Kim, Soon-Sung Ahn, In-Ho Choi