Patents by Inventor Joo-hee Jeon

Joo-hee Jeon 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: 11302900
    Abstract: A display device includes a display panel including an antireflection layer on a light emitting element layer which includes a first pixel defining layer in which an opening defining a light emitting area of a first pixel is defined, and a second pixel defining layer in which an opening defining a light emitting area of a second pixel is defined. The antireflection layer includes first and second light blocking layers respectively overlapping the first and second pixel defining layers, and includes a first gap defined by a length of a predetermined direction from an edge of the opening to an edge of an opening of the first light blocking layer, and a second gap defined by a length from an edge of the opening to an edge of an opening of the second light blocking layer in the predetermined direction. The first gap is less than the second gap.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: April 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Ho Kim, Sun Hee Lee, Gun Hee Kim, Tae Hoon Yang, Seung Chan Lee, Joo Hee Jeon
  • Publication number: 20220093804
    Abstract: A thin film transistor array panel includes a substrate, a first gate electrode on the substrate, a semiconductor layer on the first gate electrode, the semiconductor layer including a drain region, a source region, a lightly doped drain (LDD) region, and a channel region, a second gate electrode on the semiconductor layer, the first gate electrode and the second gate electrode each overlapping the channel region, a control gate electrode that overlaps the LDD region, and a source electrode and a drain electrode respectively connected with the source region and the drain region of the semiconductor layer.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: Do Hyung KIM, Gun Hee KIM, Hyeon Sik KIM, Sang Ho PARK, Joo Hee JEON
  • Patent number: 11217696
    Abstract: A thin film transistor array panel includes a substrate, a first gate electrode on the substrate, a semiconductor layer on the first gate electrode, the semiconductor layer including a drain region, a source region, a lightly doped drain (LDD) region, and a channel region, a second gate electrode on the semiconductor layer, the first gate electrode and the second gate electrode each overlapping the channel region, a control gate electrode that overlaps the LDD region, and a source electrode and a drain electrode respectively connected with the source region and the drain region of the semiconductor layer.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: January 4, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Do Hyung Kim, Gun Hee Kim, Hyeon Sik Kim, Sang Ho Park, Joo Hee Jeon
  • Patent number: 11177341
    Abstract: A display device includes a flexible substrate which includes a first surface and a second surface opposite to the first surface and includes, sequentially, a first portion in the display region, a second portion in the non-display region, a third portion bent in a direction opposite to a display surface, a fourth portion, a fifth portion bent in a direction toward the display surface, and a sixth portion; a plurality of signal wirings on the first surface at the second to sixth portions; and a plurality of first connection wirings on the second surface at the second portion, and the second portion overlaps with the fourth portion, the fifth portion, and the sixth portion, and the signal wirings and the first connection wirings are coupled to each other on the second surface at the second portion.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: November 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hyun Kim, Gun Hee Kim, Soo Hyun Moon, Seung Chan Lee, Joo Hee Jeon
  • Patent number: 11152439
    Abstract: A transparent display substrate, a transparent display device, and a method of manufacturing a transparent display device, the substrate including a base substrate including a pixel area and a transmission area; a pixel circuit on the pixel area of the base substrate; an insulation layer covering the pixel circuit on the base substrate; a pixel electrode selectively disposed on the pixel area of the base substrate, the pixel electrode being electrically connected to the pixel circuit at least partially through the insulation layer; and a transmitting layer structure selectively disposed on the transmission area of the base substrate, the transmitting layer structure including at least an inorganic material, the inorganic material consisting essentially of silicon oxynitride.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung-Ho Jung, Chaun-Gi Choi, Young-Sik Yoon, Joo-Hee Jeon, Jung-Yun Jo
  • Publication number: 20210319747
    Abstract: A pixel circuit includes an OLED, a first transistor including a gate electrode connected to a first node and an electrode connected to a third node, a capacitor including a first electrode for receiving a power supply voltage and a second electrode connected to the first node, a third transistor including a gate electrode for receiving a first gate signal, a first electrode connected to the first node, and a second electrode connected to the third node, a fourth transistor including a gate electrode for receiving a second gate signal, a first electrode connected to the first node, and a second electrode and a second gate electrode for receiving a first initialization voltage, and a seventh transistor including a gate electrode for receiving a third gate signal, a first electrode for receiving a second initialization voltage, and a second electrode connected to an anode electrode of the OLED.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 14, 2021
    Inventors: Joo-Hee JEON, Gun-Hee KIM, Ju-Won YOON, Seung-Chan LEE, Sang-Ho PARK, Joo-Sun YOON
  • Publication number: 20210305340
    Abstract: A display device includes: a substrate; and a transistor positioned on the substrate, wherein the transistor includes: a semiconductor layer; a gate electrode overlapping the semiconductor layer; a first gate contact overlapping layer overlapping a channel region where the gate electrode and the semiconductor layer are overlapped and in contact with the gate electrode; and a semiconductor contact overlapping layer overlapping the channel region and in contact with the semiconductor layer, and the first gate contact overlapping layer and the semiconductor contact overlapping layer are physically separated by a gap within the channel region.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 30, 2021
    Inventors: Gun Hee KIM, Sang Ho PARK, Joo Hee JEON, Young-Cheol JEONG
  • Publication number: 20210296418
    Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Inventors: Hye-Hyang PARK, Joo-Hee JEON, Seung-Ho JUNG, Chaun-Gi CHOI, Hyeon-Sik KIM, Hui-Won YANG, Eun-Young LEE
  • Publication number: 20210295784
    Abstract: A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.
    Type: Application
    Filed: June 25, 2019
    Publication date: September 23, 2021
    Inventors: Gun-Hee KIM, Sang-Ho PARK, Ju-Won YOON, Seung-Chan LEE, Joo-Hee JEON
  • Publication number: 20210272521
    Abstract: An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 2, 2021
    Inventors: Ju-Won YOON, Gun Hee KIM, Sang Ho PARK, Seung Chan LEE, Joo Hee JEON
  • Publication number: 20210248951
    Abstract: A display device including a display panel having a display area in which a plurality of pixels are arranged, and a light source unit overlapping the display panel and including at least one light source. The light source unit irradiates infrared light to a predetermined region within the display area when displaying an image on the display area to change the luminance of pixels disposed in the predetermined region.
    Type: Application
    Filed: December 2, 2020
    Publication date: August 12, 2021
    Inventors: Seung Chan Lee, Yoo Min Ko, Joo Hee Jeon, Sung Jin Hong
  • Publication number: 20210226174
    Abstract: A display device includes a display panel including an antireflection layer on a light emitting element layer which includes a first pixel defining layer in which an opening defining a light emitting area of a first pixel is defined, and a second pixel defining layer in which an opening defining a light emitting area of a second pixel is defined. The antireflection layer includes first and second light blocking layers respectively overlapping the first and second pixel defining layers, and includes a first gap defined by a length of a predetermined direction from an edge of the opening to an edge of an opening of the first light blocking layer, and a second gap defined by a length from an edge of the opening to an edge of an opening of the second light blocking layer in the predetermined direction. The first gap is less than the second gap.
    Type: Application
    Filed: December 15, 2020
    Publication date: July 22, 2021
    Inventors: Sun Ho KIM, Sun Hee LEE, Gun Hee KIM, Tae Hoon YANG, Seung Chan LEE, Joo Hee JEON
  • Patent number: 11069755
    Abstract: A display panel includes a flexible electrochromic substrate comprising a first flexible substrate layer, a second flexible substrate layer opposing to the first flexible substrate layer and an electrochromic part disposed between the first and second flexible substrate layers and configured to discolor in response to a driving signal, a transistor layer disposed on the flexible electrochromic substrate, the transistor layer comprising a plurality of transistors and an organic light emitting diode layer disposed on the flexible electrochromic substrate on which the transistor layer is disposed, the organic light emitting diode layer comprising a plurality of organic light emitting diodes connected to the plurality of transistors.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 20, 2021
    Inventors: Seung-Ho Jung, Chaun-Gi Choi, Yo-Seoph Ko, Ji-Hun Ryu, Tae-Kyung Ahn, Joo-Hee Jeon
  • Patent number: 11056551
    Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: July 6, 2021
    Inventors: Hye-Hyang Park, Joo-Hee Jeon, Seung-Ho Jung, Chaun-Gi Choi, Hyeon-Sik Kim, Hui-Won Yang, Eun-Young Lee
  • Publication number: 20210202626
    Abstract: A display device, includes: a substrate including pixel areas and a transmissive area between the pixel areas; a pixel circuit layer including at least one transistor on each of the pixel areas; and a light-emitting element layer on the pixel circuit layer and including at least one light-emitting element at each of the pixel areas and coupled to the at least one transistor, and a transparent organic layer at the transmissive area, wherein the light-emitting element layer further includes: a first electrode at the pixel areas, a first inorganic layer at the first electrode, an organic layer covering the first inorganic layer and the transparent organic layer, and a second inorganic layer on the organic layer.
    Type: Application
    Filed: October 27, 2020
    Publication date: July 1, 2021
    Inventors: Joo Hee Jeon, Tae Hoon Yang, Gun Hee Kim, Sung Jin Hong
  • Patent number: 11038005
    Abstract: An organic light emitting diode (OLED) display includes a first electrode, a pixel defining layer that at least partially exposes the first electrode, an organic light emitting layer on the first electrode, a thin-film encapsulation layer on the organic light emitting layer, and a light shielding member on the thin-film encapsulation the light shielding member overlapping the pixel defining layer. The organic light emitting layer includes a main area not overlapping the pixel defining layer and a sub area overlapping the pixel defining layer. The main area includes an open portion not overlapping the light shielding member and a shadow portion around the open portion overlapping the light shielding member.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: June 15, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gun Hee Kim, Sang Ho Park, Ju Won Yoon, Seung Chan Lee, Joo Hee Jeon
  • Patent number: 10971701
    Abstract: A transparent organic light emitting display device may include a transparent base substrate, a semiconductor device disposed on the transparent base substrate, a display structure electrically connected to the semiconductor device, and a protection layer including a blue dye disposed on the display structure. The protection layer may improve the transparency of the transparent base substrate by calibrating discoloration of the transparent base substrate. Thus, the transparent display device including the protection layer may ensure an enhanced transparency. Further, the transparent display device may have an enhanced mechanical strength and an increased heat resistance because of the transparent base substrate.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 6, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Ho Jung, Chaun-Gi Choi, Young-Sik Yoon, Joo-Hee Jeon, Hye-Young Park
  • Publication number: 20210036070
    Abstract: A display device includes: a substrate including a display area including a plurality of first pixels and a sensor area including a plurality of second pixels and a plurality of transmission portions, a plurality of first counter electrodes disposed corresponding to the plurality of first pixels, respectively, a plurality of second counter electrodes disposed corresponding to the plurality of second pixels, respectively, and a spacer disposed to overlap at least a portion of a boundary region between a transmission portion of the plurality of transmission portions and a second counter electrode of the plurality of second counter electrodes, which are adjacent to each other.
    Type: Application
    Filed: July 15, 2020
    Publication date: February 4, 2021
    Inventors: Joo Hee JEON, Gun Hee KIM, Sang Hoon KIM, Seung Chan LEE
  • Publication number: 20210028252
    Abstract: A display device is provided including a display area and a non-display area located on a periphery of the display area. The display area includes a sensor area for an optical sensor and a non-sensor area. The display device includes a substrate portion, a thin film transistor (TFT) layer disposed over an entire surface of the substrate portion, and a light emitting diode (LED) disposed on the TFT layer. The TFT layer includes at least one TFT. A thickness of the substrate portion in the sensor area is smaller than a thickness of the substrate portion in the non-sensor area.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 28, 2021
    Inventors: SUNG JIN HONG, SEUNG CHAN LEE, GUN HEE KIM, DONG HYUN KIM, SANG HOON KIM, SOO HYUN MOON, JOO HEE JEON
  • Publication number: 20210013291
    Abstract: A display device includes a flexible substrate which includes a first surface and a second surface opposite to the first surface and includes, sequentially, a first portion in the display region, a second portion in the non-display region, a third portion bent in a direction opposite to a display surface, a fourth portion, a fifth portion bent in a direction toward the display surface, and a sixth portion; a plurality of signal wirings on the first surface at the second to sixth portions; and a plurality of first connection wirings on the second surface at the second portion, and the second portion overlaps with the fourth portion, the fifth portion, and the sixth portion, and the signal wirings and the first connection wirings are coupled to each other on the second surface at the second portion.
    Type: Application
    Filed: July 8, 2020
    Publication date: January 14, 2021
    Inventors: Dong Hyun KIM, Gun Hee KIM, Soo Hyun MOON, Seung Chan LEE, Joo Hee JEON