Patents by Inventor Sang-Hwan Cho

Sang-Hwan 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).

  • Patent number: 9698203
    Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate and a display layer formed over the substrate and including a pixel area and a non-pixel area. The display also includes an upper thin layer formed over the display layer, wherein the upper thin layer comprises at least first and second conductive layers and a dielectric layer formed between the first and second conductive layers, wherein the second conductive layer is closer to the substrate than the first conductive layer, and wherein the first and second conductive layers are patterned as a touch electrode. The display further includes a light absorbing member at least partially overlapping the non-pixel area and not overlapping the pixel area.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Jin Koo Kang, Soo Youn Kim, Seung Hun Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Chung Sock Choi, Sang Hyun Park
  • Patent number: 9693391
    Abstract: A flexible display apparatus includes a flexible substrate; a display layer on the flexible substrate and including a plurality of pixels; a cover layer which covers the display layer; a heating electrode layer on a surface of the flexible substrate opposite to the display layer, between the flexible substrate and the display layer, between the display layer and the cover layer, or on a surface of the cover layer opposite to the display layer; and a temperature sensing unit configured to sense an external temperature to the flexible display apparatus.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: June 27, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Cheol Jang, Seung-Yong Song, Sang-Hwan Cho, Seung-Hun Kim, Chung-Sock Choi, Hyun-Ho Kim, Soo-Youn Kim, Sang-Hyun Park
  • Publication number: 20170179440
    Abstract: According to one or more embodiments of the present invention, a display apparatus includes: a substrate; a display unit which is formed on the substrate and includes an emission area and a non-emission area; a first coating layer which is formed on the display unit and has an uneven area formed on the emission area; a first blocking layer which is formed on the non-emission area of the first coating layer; and a second blocking layer which is formed on the first blocking layer and prevents reflection of external light.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Inventors: Hyun-Ho Kim, Soo-Youn Kim, Seung-Yong Song, Sang-Hwan Cho, Jin-Koo Kang, Seung-Hun Kim, Cheol Jang, Chung-Sock Choi, Sang-Hyun Park
  • Publication number: 20170098878
    Abstract: An automatic RF filter tuning system and a method for manufacturing a filter using the same are disclosed. An RF filter tuning system for tuning an RF filter that includes a plurality of cavities having resonance elements and a cover having tuning areas that are positioned correspondingly to the resonance elements, includes a measuring unit configured to measure resonance characteristics of the cavity of the RF filter, a control unit configured to calculate a tuning value of the RF filter based on the resonance characteristics, and a tuning unit configured to tune the RF filter based on the tuning value calculated by the control unit. The tuning unit includes a striking unit configured to strike the tuning area of the cover of the RF filter, thereby adjusting the resonance value and tuning the RF filter.
    Type: Application
    Filed: June 7, 2016
    Publication date: April 6, 2017
    Inventors: Nam-Shin Park, Joung-Hoe Kim, Don-Yong Lee, Kang-Hui Suh, Jong-Youn Jung, Sang-Hwan Cho, Dong-Cheon Kim, Sang-Yoong Kim, Yong-Jin Park, Oh-Kwon Kim
  • Patent number: 9608234
    Abstract: According to one or more embodiments of the present invention, a display apparatus includes: a substrate; a display unit which is formed on the substrate and includes an emission area and a non-emission area; a first coating layer which is formed on the display unit and has an uneven area formed on the emission area; a first blocking layer which is formed on the non-emission area of the first coating layer; and a second blocking layer which is formed on the first blocking layer and prevents reflection of external light.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: March 28, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Ho Kim, Soo-Youn Kim, Seung-Yong Song, Sang-Hwan Cho, Jin-Koo Kang, Seung-Hun Kim, Cheol Jang, Chung-Sock Choi, Sang-Hyun Park
  • Patent number: 9502655
    Abstract: A display device includes: a substrate; a pixel defining layer defining a pixel region on the substrate; a first electrode on the pixel region; a light emitting layer on the first electrode; a second electrode on the light emitting layer; a thin film encapsulation layer on the second electrode; a metal pattern on the thin film encapsulation layer and overlapping the pixel defining layer; and a multi-layer thin film layer on the metal pattern and the thin film encapsulation layer.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: November 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo Youn Kim, Hyun Ho Kim, Seung Hun Kim, Sang Hwan Cho
  • Patent number: 9502477
    Abstract: A display apparatus and a filter for improving color purity (color saturation filter) are disclosed. In one aspect, the display apparatus includes a substrate, a display device formed on the substrate and having a plurality of pixel areas that emit different colors of light, and a color saturation filter on the display device. The color saturation filter is formed with a substantially uniform thickness over the plurality of pixel areas and has a transmissivity such that a full width at half maximum at the central wavelength of blue light emitted from one of the pixel areas is about 100 nm or less.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoung-Duk Lee, Sang-Hwan Cho, Yun-Ah Chung
  • Patent number: 9484555
    Abstract: An organic light emitting display device includes a substrate having a non-light emitting region and a light emitting region, a photochromic layer in a path of light that is emitted from the light emitting region and a light blocking layer on the photochromic layer, wherein the light blocking layer comprises a plurality of light blocking patterns that are spaced from each other, the light blocking patterns overlap the light emitting region, and a space between adjacent light blocking patterns exposes the non-light emitting region.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: November 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung Sock Choi, Jin Koo Kang, Soo Youn Kim, Seung Hun Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Sang Hwan Cho, Sang Hyun Park
  • Patent number: 9478759
    Abstract: A flexible display panel including a flexible panel including a display region and a non-display region, wherein the display region includes an organic light emitting device; a planarization layer disposed on the flexible panel; and a metal-dielectric layer disposed on the planarization layer and including a metal layer and a dielectric layer.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: October 25, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cheol Jang, Seung-Yong Song, Sang-Hwan Cho, Seung-Hun Kim, Chung-Sock Choi, Hyun-Ho Kim, Soo-Youn Kim, Sang-Hyun Park
  • Publication number: 20160282987
    Abstract: Provided is a display device including: a display unit including a pixel and a non-pixel area; an encapsulation unit configured to seal the display unit; a touch sensing electrode at the non-pixel area on the encapsulation unit and provided with a plurality of first openings; and a reflection reducing unit at the pixel and the non-pixel area on the encapsulation unit and configured as a multilayer of a metal layer and a dielectric layer. The metal layer includes a non-pixel portion overlapping the touch sensing electrode and provided with a plurality of second openings.
    Type: Application
    Filed: November 3, 2015
    Publication date: September 29, 2016
    Inventors: Chung Sock Choi, Sang Hwan Cho
  • Publication number: 20160209955
    Abstract: A touch screen panel includes first electrode patterns disposed in a first direction, first connection patterns electrically connecting the first electrode patterns, second electrode patterns disposed in a second direction intersecting the first direction and insulated from the first electrode patterns, insulating patterns disposed on the first connection patterns, and second connection patterns disposed on the insulating patterns and electrically connecting the second electrode patterns, in which at least one of the first electrode patterns, the first connection patterns, the second electrode patterns, and the second connection patterns include a first polymer layer including a conductive material infiltrated therein, and the insulating patterns comprise a second polymer layer comprising a dielectric material infiltrated therein.
    Type: Application
    Filed: September 22, 2015
    Publication date: July 21, 2016
    Inventors: Seung Hun KIM, Cheol JANG, Sang Hwan CHO, Chung Sock CHOI, Myung Mo SUNG
  • Publication number: 20160202817
    Abstract: A display device including a substrate having a display area including a plurality of pixels and a peripheral area positioned outside the display area, a sealant in the peripheral area, a first spacer on the sealant, an encapsulation substrate on the first spacer, and a touch sensor on the encapsulation substrate facing the display area.
    Type: Application
    Filed: August 25, 2015
    Publication date: July 14, 2016
    Inventors: Chung Sock CHOI, Seung Hun KIM, Seung Yong SONG, Cheol JANG, Sang Hwan CHO
  • Publication number: 20160204347
    Abstract: A display device includes: a substrate; a pixel defining layer defining a pixel region on the substrate; a first electrode on the pixel region; a light emitting layer on the first electrode; a second electrode on the light emitting layer; a thin film encapsulation layer on the second electrode; a metal pattern on the thin film encapsulation layer and overlapping the pixel defining layer; and a multi-layer thin film layer on the metal pattern and the thin film encapsulation layer.
    Type: Application
    Filed: March 18, 2016
    Publication date: July 14, 2016
    Inventors: Soo Youn Kim, Hyun Ho Kim, Seung Hun Kim, Sang Hwan Cho
  • Patent number: 9391302
    Abstract: An organic light emitting diode (“OLED”) display includes a display panel; and a window on the display panel. The OLED display further includes an optical unit on the display panel, and including a metal material film and a dielectric material film.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Hwan Cho, Soo-Youn Kim, Sang-Hyun Park, Yoon-Hyeung Cho, Seung-Yong Song
  • Patent number: 9373821
    Abstract: A display apparatus includes a substrate, a display unit, a first metal oxide layer on the display unit, and a second metal oxide layer. The display unit may include an emission region and a non-emission region. The second metal oxide layer may be on the first metal oxide layer in the non-emission region. The first metal oxide layer and the second metal oxide layer may each include a metal oxide, the transparency of which varies according to a degree of oxidization of the metal oxide.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: June 21, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo-Youn Kim, Jin-Koo Kang, Seung-Hun Kim, Hyun-Ho Kim, Seung-Yong Song, Cheol Jang, Sang-Hwan Cho, Chung-Sock Choi, Sang-Hyun Park
  • Patent number: 9368760
    Abstract: An organic light emitting diode (OLED) display includes: a substrate including a plurality of pixels, a thin film transistor disposed in the pixels; an organic light emitting element connected to the thin film transistor and disposed in the pixels, an encapsulation member located on the organic light emitting element, and an external light blocking member disposed above or under the encapsulation member and including a first portion and a second portion. The first portion has a thickness that is thinner than a thickness of the second portion, and the first portion is disposed in the pixels.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Hwan Cho, Soo-Youn Kim, Sang-Hyun Park, Yoon-Hyeung Cho, Seung-Yong Song
  • Patent number: 9360976
    Abstract: A touch panel and a display device including the same are disclosed. In one aspect, the touch panel includes a destructive interference (DI) unit including a plurality of dielectric layers and a plurality of metal layers that are alternately stacked and a transparent conductive layer formed over the DI unit. The transparent conductive layer includes a plurality of first sensing patterns and one of the metal layers includes a plurality of second sensing patterns and a plurality of non-sensing metal patterns adjacent to and alternately arranged with the second sensing patterns.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 7, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chung-Sock Choi, Jin Koo Kang, Soo Youn Kim, Seung Hun Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Sang Hwan Cho, Sang Hyun Park
  • Publication number: 20160118624
    Abstract: An organic light emitting display device according to an exemplary embodiment of the present disclosure includes: a first substrate provided with a thin film transistor layer where a plurality of pixels are formed; a second substrate covering the first substrate; and a sealant formed along edges of the first and second substrates to bond both of the first and second substrates, wherein the sealant is formed above the thin film transistor of the first substrate, the sealant comprises an organic sealant and a protection member formed outside of the organic sealant, and the protection member is formed of a dual layer of an inorganic layer and an elastic member.
    Type: Application
    Filed: June 24, 2015
    Publication date: April 28, 2016
    Inventors: Seung Hun Kim, Tae Wook Kang, Seung Yong Song, Sang Hwan Cho
  • Patent number: 9324766
    Abstract: A display device includes: a substrate; a pixel defining layer defining a pixel region on the substrate; a first electrode on the pixel region; a light emitting layer on the first electrode; a second electrode on the light emitting layer; a thin film encapsulation layer on the second electrode; a metal pattern on the thin film encapsulation layer and overlapping the pixel defining layer; and a multi-layer thin film layer on the metal pattern and the thin film encapsulation layer.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: April 26, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo Youn Kim, Hyun Ho Kim, Seung Hun Kim, Sang Hwan Cho
  • Patent number: 9293731
    Abstract: An organic light emitting display device having a display substrate; a display element layer formed on the display substrate and including a plurality of pixels, a thin film encapsulation layer which covers and protects the display substrate and the display element layer; a function film disposed on the thin film encapsulation layer, a first adhesive layer disposed between the thin film encapsulation layer and the functional film, a window attached onto the functional film which protects the display element layer, and a second adhesive layer disposed between the functional film and the window, in which the first adhesive layer and the second adhesive are formed by deposition, a surface processing is performed, and facing surfaces are adhered with each other.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: March 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hun Kim, Jin Koo Kang, Soo Youn Kim, Hyun Ho Kim, Seung Yong Song, Cheol Jang, Sang Hwan Cho, Chung Sock Choi, Sang Hyun Park