Patents by Inventor Jae-Beom Choi

Jae-Beom 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).

  • Patent number: 9634073
    Abstract: An organic light-emitting display device includes a substrate. A buffer layer is formed on the substrate. A thin film transistor is disposed on the buffer layer. The thin film transistor includes an active layer, a gate electrode, a source electrode, a drain electrode, a first insulating layer, and a second insulating layer. An uneven pattern is formed by patterning the buffer layer. A first pixel electrode is disposed in an opening formed in the second insulating layer. The first pixel electrode includes a transparent conductive oxide. A second pixel electrode is disposed on the first pixel electrode. The second pixel electrode includes a semi-transmissive layer. An organic lighting-emitting layer is formed on the second pixel electrode. An opposite electrode is formed on the organic lighting-emitting layer.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Oh, Jae-Beom Choi, Seong-Hyun Jin, Se-Hun Park, Won-Kyu Lee, Yeoung-Jin Chang
  • Patent number: 9613551
    Abstract: An organic light emitting diode display apparatus and a method and apparatus for easily inspecting the organic light emitting diode display apparatus to determine whether an electrical failure occurs. The organic light emitting diode display apparatus comprises a plurality of pixels each comprising a pixel electrode, an intermediate layer including an organic emission layer, and an opposite electrode; scan lines and data lines corresponding to the plurality of pixels; first power supply lines connected to the plurality of pixels and extending in a first direction; second power supply lines connected to the first power supply lines; and a control line unit for simultaneously supplying control signals to the plurality of pixels, the control line unit including a plurality of control lines extending in one direction and two common lines being respectively connected to both ends of each of the plurality of control lines.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Patent number: 9548321
    Abstract: A thin film transistor (TFT) array substrate is provided that includes a TFT on a substrate. The TFT can include an active layer, gate electrode, source electrode, drain electrode, first insulating layer between the active layer and the gate electrode, and second insulating layer between the gate electrode and the source and drain electrodes. A pixel electrode is disposed on the first and second insulating layers. A capacitor including a lower electrode is disposed on a same layer as the gate electrode and an upper electrode. A third insulating layer directly between the second insulating layer and the pixel electrode and between the lower electrode and the upper electrode. A fourth insulating layer covers the source electrode, the drain electrode, and the upper electrode, and exposes the pixel electrode and can further expose a pad electrode.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: January 17, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Jae-Hwan Oh, Seong-Hyun Jin, Kwang-Hae Kim, Jong-Hyun Choi
  • Patent number: 9530339
    Abstract: A device for inspecting an organic light-emitting display apparatus includes a power supply unit, a power receiving unit, a wiring location sensing unit, and a control unit. The power supply unit applies an AC signal to each of wirings arranged in the organic light-emitting display apparatus. The power receiving unit senses an electrical signal from each of the wirings. The wiring location sensing unit senses a location of each of the wirings. The control unit determines whether each of the wirings has a defect based on the sensed electrical signal and information pertaining to each wiring type of the wirings.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: December 27, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: June-Woo Lee, Kwan-Wook Jung, Guang-Hai Jin, Jae-Beom Choi
  • Patent number: 9525047
    Abstract: A thin film transistor (TFT) substrate, an organic light-emitting display apparatus including the TFT substrate, and a method of manufacturing the TFT substrate that enable simple manufacturing processes and a decrease in the interference between a capacitor and other interconnections are disclosed. The TFT substrate may include a substrate, a TFT arranged on the substrate, the TFT including an active layer, a gate electrode, a source electrode, and a drain electrode, a pixel electrode electrically connected to one of the source electrode and the drain electrode, and a capacitor including a lower capacitor electrode and an upper capacitor electrode, the lower capacitor electrode formed from the same material as the active layer and arranged on the same layer as the active layer, and the upper capacitor electrode formed from the same material as the pixel electrode.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: December 20, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Hae Kim, Jae-Beom Choi, Kwan-Wook Jung
  • Publication number: 20160336384
    Abstract: An organic light emitting diode (OLED) display includes a light-emitting region including an organic emission layer and a non-light-emitting region neighboring the light-emitting region. The OLED display includes a first electrode positioned at the light-emitting region and including a plurality of division regions divided according to a virtual cutting line crossing the light-emitting region, an organic emission layer positioned on the first electrode, a second electrode positioned on the organic emission layer, a driving thin film transistor connected to the first electrode, and a plurality of input terminals positioned at the non-light-emitting region and respectively connecting between each of division regions and the driving thin film transistor.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Inventors: Guang hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Moo-Jin KIM, Na-Young KIM
  • Patent number: 9496317
    Abstract: A method of manufacturing an organic light emitting display apparatus by utilizing a deposition apparatus for forming an organic layer on a substrate includes: fixing the substrate to a mask assembly for forming a common layer or a mask assembly for forming a pattern layer in a loading unit; when the one or more deposition assemblies are separated from the substrate, forming an intermediate layer by depositing a deposition material discharged from the one or more deposition assemblies in a deposition unit of the deposition apparatus onto the substrate while the substrate is moved relative to the one or more deposition assemblies by a first conveyer unit; and separating the substrate on which the deposition is finished from the mask assembly for forming the common layer or the mask assembly for forming the pattern layer in an unloading unit.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Hwan Choi, Chi-Woo Kim, Gun-Shik Kim, Ok-Keun Song, Kee-Han Uh, Seong-Ho Jeong, You-Min Cha, Jae-Beom Choi, Young-Mo Koo, Keum-Nam Kim, Dae-Sung Choi
  • Publication number: 20160329393
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate, a switching transistor formed over the substrate, a driving transistor electrically connected to the switching transistor, and a pixel electrode electrically connected to the driving transistor. The display also includes a pixel definition layer covering the pixel electrode and having a pixel opening, an organic emission layer formed only in the pixel opening and connected to the pixel electrode, and a common electrode formed over the organic emission layer. The pixel definition layer is formed over the driving transistor.
    Type: Application
    Filed: May 5, 2016
    Publication date: November 10, 2016
    Inventors: Il Hun Seo, Chul Kyu Kang, Byoung Ki Kim, Young Jun Shin, Jae Beom Choi
  • Publication number: 20160285044
    Abstract: A display device includes a substrate including a display area in which a plurality of pixels is disposed, and a non-display area in a peripheral area of the display area; an insulating layer disposed on the substrate; a metal wiring disposed on the substrate; and a plurality of dummy patterns disposed in the non-display area of the substrate. The plurality of dummy patterns includes a plurality of first patterns including an insulating material and a plurality of second patterns including a metal material.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 29, 2016
    Inventors: Jong-Ryuk Park, Keun Soo Lee, Sun Youl Lee, Yun-Mo Chung, Jae Beom Choi
  • Patent number: 9443917
    Abstract: Provided are an organic light-emitting display apparatus having superior light efficiency and ease of manufacture, as well as a method of manufacturing the same. The organic light-emitting display apparatus includes: a substrate; a pixel electrode disposed on a pixel region of the substrate; a first insulating layer that is interposed between the substrate and the pixel electrode and that has a first discontinuous region extending along at least a portion of an edge of the pixel electrode; an intermediate layer that is disposed on the pixel electrode and that includes an emission layer; and an opposite electrode that covers the intermediate layer and at least a portion of the first discontinuous region, so that a shortest distance to the substrate in at least a portion of the first discontinuous region is shorter than a shortest distance between the pixel electrode and the substrate.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: September 13, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Hwan Oh, Yeoung-Jin Chang, Seong-Hyun Jin, Se-Hun Park, Won-Kyu Lee, Jae-Beom Choi
  • Publication number: 20160233289
    Abstract: A transparent display substrate including a base substrate having a pixel area and a transmission area, a thickness of the base substrate at the transmission area being less than a thickness of the base substrate at the pixel area, a pixel circuit at the pixel area of the base substrate, an insulation structure covering the pixel circuit, the insulation structure having an opening or a concave portion at the transmission area of the base substrate, and a pixel electrode at the pixel area of the base substrate and extending at least partially through the insulation structure to be electrically connected to the pixel circuit.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 11, 2016
    Inventors: Yong-Duck SON, Ji-Youn LEE, Dae-Woo LEE, Jae Beom CHOI
  • Patent number: 9406729
    Abstract: An organic light emitting diode (OLED) display includes a light-emitting region including an organic emission layer and a non-light-emitting region neighboring the light-emitting region. The OLED display includes a first electrode positioned at the light-emitting region and including a plurality of division regions divided according to a virtual cutting line crossing the light-emitting region, an organic emission layer positioned on the first electrode, a second electrode positioned on the organic emission layer, a driving thin film transistor connected to the first electrode, and a plurality of input terminals positioned at the non-light-emitting region and respectively connecting between each of division regions and the driving thin film transistor.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Na-Young Kim
  • Publication number: 20160218318
    Abstract: An organic light emitting diode display includes: a substrate including a display area displaying an image and a non-display area positioned around the display area; a first electrode formed in the display area connected with a thin film transistor; a pixel defining layer formed on the first electrode thereby defining a pixel area; an organic emission layer formed on the first electrode contacting the first electrode in the pixel area; a second electrode formed on the pixel defining layer contacting the organic emission layer; a passivation layer formed on the second electrode and the pixel defining layer; a filler covering the passivation layer in the display area; and a getter formed in the non-display area on the substrate and surrounding the display area, in which the passivation layer overlaps with the getter.
    Type: Application
    Filed: December 9, 2015
    Publication date: July 28, 2016
    Inventors: Yun-Mo Chung, Ho Jin Yoon, Dae Woo Lee, Jae Beom Choi
  • Publication number: 20160190227
    Abstract: A capacitor includes an active layer, a gate insulation layer on the active layer, a gate electrode on the gate insulation layer, an interlayer insulating layer on the gate electrode, and a first electrode on the interlayer insulating layer and connected to the active layer through at least one contact hole.
    Type: Application
    Filed: March 4, 2016
    Publication date: June 30, 2016
    Inventors: Guang-Hai JIN, Jae-Beom CHOI, Se-Hun PARK, Jae-Seol CHO
  • Publication number: 20160181332
    Abstract: A light emitting display device includes a substrate, a first electrode, a pixel defining layer, a light emitting layer, a second electrode, and a reflective pattern. The substrate includes a plurality of pixels, each including a top emission pixel in a first area and a bottom emission pixel in a second area. The first electrode is in the first area and the second area. The pixel defining layer includes pixel openings to expose the first electrode and reflective pattern openings between adjacent pixels. The light emitting layer is on the first electrode, and the second electrode is on the light emitting layer. The reflective pattern is in the reflective pattern opening and spaced from the second electrode in the first area.
    Type: Application
    Filed: April 20, 2015
    Publication date: June 23, 2016
    Inventors: Se Hun PARK, Yong Duck SON, Jae Hwan OH, Ji Youn LEE, Young Jin CHANG, Jae Beom CHOI
  • Patent number: 9361820
    Abstract: A method of inspecting a short circuit defect between first wires extending in a first direction and a second direction intersecting the first direction and second wires extending in the first or second direction, the method including inspecting a short circuit defect between the first and second wires by using a potential difference monitored only in the second wires.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 7, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim
  • Patent number: 9356083
    Abstract: Provided is a method of manufacturing an organic light-emitting display apparatus which may reduce white angular dependency (WAD). The method includes forming a common layer on each of subpixel areas at the same time without discretion within one pixel area, the common layer not being formed on connection areas between pixel areas.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: May 31, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Nyeng Kang, Jae-Beom Choi, Soo-Beom Jo
  • Patent number: 9356086
    Abstract: An organic light emitting diode (OLED) display includes a substrate where a plurality of pixels are formed, a first pixel defining layer on the substrate, the first pixel defining layer dividing the plurality of pixels, a connection wire on the first pixel defining layer, the connection wire electrically connecting two adjacent pixels, and a second pixel defining layer on the first pixel defining layer, the second pixel defining layer covering the connection wire.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: May 31, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Guang hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Ga-Young Kim
  • Publication number: 20160104755
    Abstract: An organic light emitting diode display includes: a substrate; a first thin film transistor including a first active region on the substrate; a second thin film transistor connected to the first thin film transistor and including a second active region spaced from the first active region; and a silicon layer on the substrate and including a plurality of polysilicon lines spaced from each other and extending in a first direction and a plurality of amorphous silicon lines between the adjacent polysilicon lines and extending in the first direction, wherein the first active region and the second active region are in different polysilicon lines of the plurality of polysilicon lines.
    Type: Application
    Filed: May 22, 2015
    Publication date: April 14, 2016
    Inventors: Guang Hai Jin, Jae Beom Choi
  • Patent number: 9287295
    Abstract: A display apparatus is disclosed. The apparatus includes a plurality of unit pixels each comprising a plurality of sub pixels, a plurality of scan wires, and a plurality of scan lines branching off from each of the scan wires and extending in a first direction. The number of scan lines from each scan wire equals the number of sub pixels for each pixel, and each scan line connects one of the scan wires with one of the sub pixels of each of a plurality of unit pixels. The apparatus also includes a plurality of data lines extending in a second direction orthogonal to the first direction and which are connected to the plurality of sub pixels. The apparatus also includes a first power supply line extending in the second direction and connected to the sub pixels, and a plurality of test pads, each connected to the scan lines of one of the scan wires.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: June-Woo Lee, Jae-Beom Choi, Kwan-Wook Jung, Sung-Soo Choi, Seong-Jun Kim, Guang-Hai Jin, Ga-Young Kim, Jee-Hoon Kim