Patents by Inventor Byeong-Hoon Cho

Byeong-Hoon Cho 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: 20160211310
    Abstract: An organic light emitting diode display device, including a flexible substrate; pixels on the flexible substrate, the pixels including an organic emission layer; a pixel definition layer between the pixels, the pixel definition layer including openings; an encapsulation layer covering the pixels; and a conductive light shielding member on the encapsulation layer, the conductive light shielding member not overlapped with the pixels, and overlapped with the pixel definition layer.
    Type: Application
    Filed: July 22, 2015
    Publication date: July 21, 2016
    Inventors: Seong Min WANG, Jung Gun NAM, Byeong Hoon CHO, Mu Gyeom KIM
  • Patent number: 9389452
    Abstract: A touch display apparatus includes a base substrate, a light blocking semiconductor pattern disposed on the base substrate and configured to block a visible light and transmit an infrared light, a sensing element disposed on the light blocking semiconductor pattern and configured to detect a touch position using an incident infrared light, a driving element configured to drive the sensing element, a signal line electrically connected with the sensing element or the driving element, and a wiring connecting part disposed under the signal line and including a same material as the light blocking semiconductor pattern.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Jin Mun, Dae-Cheol Kim, Woong-Kwon Kim, Sung-Ryul Kim, Ki-Hun Jeong, Byeong-Hoon Cho, Jung-Suk Bang, Kun-Wook Han
  • Publication number: 20160190186
    Abstract: A thin film transistor array panel includes a substrate, an insulation layer, a first semiconductor, and a second semiconductor. The insulation layer is disposed on the substrate and includes a stepped portion. The first semiconductor is disposed on the insulation layer. The second semiconductor is disposed on the insulation layer and includes a semiconductor material different than the first semiconductor. The stepped portion is spaced apart from an edge of the first semiconductor.
    Type: Application
    Filed: January 11, 2016
    Publication date: June 30, 2016
    Inventors: Hong-Kee Chin, Yun Jong Yeo, Sang Gab Kim, Jung Suk Bang, Byeong Hoon Cho
  • Patent number: 9356076
    Abstract: An organic light emitting diode display including a pixel that includes a light-emitting device and a first thin film transistor connected to the light-emitting device; and a sensor that includes a light sensing element, wherein the light sensing element includes a gate electrode; an active layer on the gate electrode; a filter layer on the active layer; and source and drain electrodes on the active layer, the source and drain electrodes being connected to the active layer, the light sensing element and the first thin film transistor are formed on a same substrate, and one of the gate electrode and the active layer of the light sensing element and a gate electrode of the first thin film transistor are aligned on a same layer.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong Min Wang, Byeong Hoon Cho
  • Publication number: 20150364527
    Abstract: An organic light emitting diode display including a pixel that includes a light-emitting device and a first thin film transistor connected to the light-emitting device; and a sensor that includes a light sensing element, wherein the light sensing element includes a gate electrode; an active layer on the gate electrode; a filter layer on the active layer; and source and drain electrodes on the active layer, the source and drain electrodes being connected to the active layer, the light sensing element and the first thin film transistor are formed on a same substrate, and one of the gate electrode and the active layer of the light sensing element and a gate electrode of the first thin film transistor are aligned on a same layer.
    Type: Application
    Filed: October 21, 2014
    Publication date: December 17, 2015
    Inventors: Seong Min WANG, Byeong Hoon CHO
  • Publication number: 20150243712
    Abstract: An organic light emitting display including a first substrate and a second substrate is described. The first substrate has a pixel divided into a light emitting area and a non-light emitting area. The first substrate has an organic light emitting diode disposed in the light emitting area. The second substrate has an infrared sensor disposed corresponding to the non-light emitting area. In the organic light emitting display, the organic light emitting diode emits visible light and infrared light, and the infrared sensor is disposed corresponding to the non-light emitting area.
    Type: Application
    Filed: December 10, 2014
    Publication date: August 27, 2015
    Inventors: Seong-Min WANG, Tae-Kyung KIM, Byeong-Hoon CHO, Mu-Gyeom KIM
  • Patent number: 9087750
    Abstract: A touch screen substrate includes a base substrate, a first switching element and a first sensing element which senses infrared light. The first switching element includes a first switching gate electrode, a first active pattern disposed on the first switching gate electrode, a first switching source electrode disposed on the first active pattern and a first switching drain electrode disposed apart from the first switching source electrode. The first sensing element includes a first sensing drain electrode connected to the first switching source electrode, a first sensing source electrode disposed apart from the first sensing drain electrode, a second active pattern disposed below the first sensing drain electrode and the first sensing source electrode and including a first amorphous layer, a doped amorphous layer and a second amorphous layer, and a first sensing gate electrode disposed on the first sensing drain electrode and the first sensing source electrode.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: July 21, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Woong-Kwon Kim, Jung-Suk Bang, Sung-Hoon Yang, Sang-Youn Han, Suk-Won Jung, Byeong-Hoon Cho, Dae-Cheol Kim, Ki-Hun Jeong, Kyung-Sook Jeon, Seung-Mi Seo, Kun-Wook Han, Mi-Seon Seo
  • Patent number: 9081433
    Abstract: A method of processing touch-image data includes calculating a plurality of motion vectors using a plurality of low-resolution touch-image data frames, aligning sensing data corresponding to an object detected in the low-resolution touch-image data frames using the motion vectors to generate an overlapped touch-image data frame, generating high-resolution data corresponding to the detected object using the overlapped touch-image data frame and detecting the touch position and generating touch position data of the detected object using the high-resolution touch position data corresponding to the detected object.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: July 14, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Noboru Takeuchi, Tadashi Amino, Dae-Cheol Kim, Woong-Kwon Kim, Byeong-Hoon Cho
  • Patent number: 9054266
    Abstract: An IR sensing transistor according to an exemplary embodiment of the present invention includes: a light blocking layer formed on a substrate; a gate insulating layer formed on the light blocking layer; a semiconductor formed on the gate insulating layer; a pair of ohmic contact members formed on the semiconductor; a source electrode and a drain electrode formed on respective ones of the ohmic contact members; a passivation layer formed on the source electrode and the drain electrode; and a gate electrode formed on the passivation layer, wherein substantially all of the gate insulating layer lies on the light blocking layer.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Won Jung, Byeong Hoon Cho, Sung Hoon Yang, Woong Kwon Kim, Sang Youn Han, Dae Cheol Kim, Ki-Hun Jeong, Kyung-Sook Jeon, Seung Mi Seo, Jung-Suk Bang, Kun-Wook Han
  • Publication number: 20150123134
    Abstract: An infrared detector includes a substrate, a light blocking layer on the substrate, a lower electrode on the light blocking layer, the lower electrode electrically connected to the light blocking layer, a lower insulating layer on the light blocking layer, a first semiconductor layer on the lower insulating layer, a first source electrode and a first drain electrode on the first semiconductor layer, an upper insulating layer on the first semiconductor layer, and a first gate electrode on the upper insulating layer, the first gate electrode electrically connected to the lower electrode, where the first semiconductor layer includes a zinc and a nitrogen, and the first semiconductor layer is configured to generate electric charges by reacting with an infrared ray.
    Type: Application
    Filed: March 20, 2014
    Publication date: May 7, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seong-Min Wang, Byeong-Hoon Cho
  • Patent number: 8907924
    Abstract: An information detection device includes: a plurality of light sensing units each configured to detect light; a plurality of sensor scanning drivers each configured to apply sensor scanning signals to the light sensing units; a sensing signal processor configured to receive position information detected by the light sensing units; a plurality of bias applying units each configured to apply bias voltages to the light sensing units; wherein each bias applying unit applies a different polarity of bias voltage.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: December 9, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Youn Han, Dong-Kwon Kim, Kyung-Sook Jeon, Sung-Hoon Yang, Joo-Han Kim, Woong-Kwon Kim, Suk-Won Jung, Byeong-Hoon Cho, Dae-Cheol Kim, Hui-Sung Lee, Ki-Hun Jeong, Seung-Mi Seo, Jung-Suk Bang, Kun-Wook Han, Mi-Seon Seo
  • Patent number: 8901691
    Abstract: A touch sensing substrate includes a substrate, a first light sensing element, a second light sensing element and a first bias line. The first light sensing element includes a first gate electrode, a first active pattern overlapping with the first gate electrode, a first source electrode partially overlapping with the first active pattern and a first drain electrode partially overlapping with the first active pattern. The second light sensing element includes a second gate electrode, a second active pattern overlapping with the second gate electrode, a second source electrode partially overlapping with the second active pattern and a second drain electrode partially overlapping with the second active pattern. The first bias line is connected to the first and second gate electrodes.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Jong Yeo, Byeong-Hoon Cho, Ki-Hun Jeong, Hong-Kee Chin, Jung-Suk Bang, Woong-Kwon Kim, Sung-Ryul Kim, Hee-Joon Kim, Dae-Cheol Kim, Kun-Wook Han
  • Publication number: 20140306901
    Abstract: A method of processing touch-image data includes calculating a plurality of motion vectors using a plurality of low-resolution touch-image data frames, aligning sensing data corresponding to an object detected in the low-resolution touch-image data frames using the motion vectors to generate an overlapped touch-image data frame, generating high-resolution data corresponding to the detected object using the overlapped touch-image data frame and detecting the touch position and generating touch position data of the detected object using the high-resolution touch position data corresponding to the detected object.
    Type: Application
    Filed: December 16, 2013
    Publication date: October 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Noboru Takeuchi, Tadashi Amino, Dae-Cheol Kim, Woong-Kwon Kim, Byeong-Hoon Cho
  • Publication number: 20140287542
    Abstract: An IR sensing transistor according to an exemplary embodiment of the present invention includes: a light blocking layer formed on a substrate; a gate insulating layer formed on the light blocking layer; a semiconductor formed on the gate insulating layer; a pair of ohmic contact members formed on the semiconductor; a source electrode and a drain electrode formed on respective ones of the ohmic contact members; a passivation layer formed on the source electrode and the drain electrode; and a gate electrode formed on the passivation layer, wherein substantially all of the gate insulating layer lies on the light blocking layer.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventors: Suk Won JUNG, Byeong Hoon CHO, Sung Hoon YANG, Woong Kwon KIM, Sang Youn HAN, Dae Cheol KIM, Ki-Hun JEONG, Kyung-Sook JEON, Seung Mi SEO, Jung-Suk BANG, Kun-Wook Han
  • Publication number: 20140247403
    Abstract: A touch display apparatus includes a base substrate, a light blocking semiconductor pattern disposed on the base substrate and configured to block a visible light and transmit an infrared light, a sensing element disposed on the light blocking semiconductor pattern and configured to detect a touch position using an incident infrared light, a driving element configured to drive the sensing element, a signal line electrically connected with the sensing element or the driving element and extending in a direction, and a wiring connecting part disposed under the signal line and including a same material as the light blocking semiconductor pattern.
    Type: Application
    Filed: October 29, 2013
    Publication date: September 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sung-Jin MUN, Dae-Cheol KIM, Woong-Kwon KIM, Sung-Ryul KIM, Ki-Hun JEONG, Byeong-Hoon CHO, Jung-Suk Bang, Kun-Wook HAN
  • Publication number: 20140232972
    Abstract: A display substrate includes a base substrate, a reflection controlling layer disposed on the base substrate, and a metal wiring layer disposed on the reflection controlling layer. The metal wiring layer comprises an opaque metal. The reflection controlling layer changes wavelength-specific reflectance of reflected light using destructive interference. The reflected light is reflected from the metal wiring layer through the base substrate and the reflection controlling layer.
    Type: Application
    Filed: August 8, 2013
    Publication date: August 21, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dae-Cheol KIM, Dong-Kwon Kim, Woong-Kwon Kim, Ki-Hun Jeong, Byeong-Hoon Cho, Kun-Wook Han
  • Patent number: 8796626
    Abstract: An optical sensor includes a visible light sensor includes a visible light sensing transistor and an infrared light sensor includes an infrared light sensing transistor, wherein the visible light sensing transistor receives a first driving voltage through a first driving voltage line, the infrared light sensing transistor receives a second driving voltage through a second driving voltage line, and the visible light sensing transistor and the infrared light sensing transistor receive a reference voltage through a reference voltage line.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 5, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kun-Wook Han, Sung-Ryul Kim, Woong-Kwon Kim, Dae-Cheol Kim, Ki-Hun Jeong, Jung-Suk Bang, Yun-Jong Yeo, Byeong-Hoon Cho, Hong-Kee Chin, Sung-Jin Mun
  • Patent number: 8785932
    Abstract: An IR sensing transistor according to an exemplary embodiment of the present invention includes: a light blocking layer formed on a substrate; a gate insulating layer formed on the light blocking layer; a semiconductor formed on the gate insulating layer; a pair of ohmic contact members formed on the semiconductor; a source electrode and a drain electrode formed on respective ones of the ohmic contact members; a passivation layer formed on the source electrode and the drain electrode; and a gate electrode formed on the passivation layer, wherein substantially all of the gate insulating layer lies on the light blocking layer.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Suk Won Jung, Byeong Hoon Cho, Sung Hoon Yang, Woong Kwon Kim, Sang Youn Han, Dae Cheol Kim, Ki-Hun Jeong, Kyung-Sook Jeon, Seung Mi Seo, Jung-Suk Bang, Kun-Wook Han
  • Publication number: 20140184942
    Abstract: A panel for a display device is provided. The panel includes a first substrate, a touch sensing circuit formed on the first substrate, the touch sensing circuit including at least one sensing thin film transistor and a connection wire, and a shielding electrode formed covering at least a portion of the sensing thin film transistor and the connection wire.
    Type: Application
    Filed: August 14, 2013
    Publication date: July 3, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung Suk BANG, Ki-Hun JEONG, Dae Cheol KIM, Sung Ryul KIM, Woong Kwon KIM, Sung Jin MUN, Byeong Hoon CHO, Kun-Wook HAN
  • Publication number: 20140175441
    Abstract: A thin film transistor array panel includes a substrate, an insulation layer, a first semiconductor, and a second semiconductor. The insulation layer is disposed on the substrate and includes a stepped portion. The first semiconductor is disposed on the insulation layer. The second semiconductor is disposed on the insulation layer and includes a semiconductor material different than the first semiconductor. The stepped portion is spaced apart from an edge of the first semiconductor.
    Type: Application
    Filed: June 26, 2013
    Publication date: June 26, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hong-Kee CHIN, Yun Jong Yeo, Sang Gab Kim, Jung-Suk Bang, Byeong Hoon Cho