Patents by Inventor Bong-Sun Seo

Bong-Sun Seo 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: 9229274
    Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: January 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sun Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 8395736
    Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sun Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
  • Publication number: 20100296035
    Abstract: A display substrate includes a transparent substrate, a pixel layer, an organic insulating layer, a transparent electrode and a reflective electrode. The pixel layer is formed on the transparent substrate, and includes a plurality of pixel parts. Each of the pixel parts includes a transmission region and a reflection region. The organic insulating layer is formed on the pixel layer. The transparent electrode is formed on the organic insulating layer corresponding to each of the pixel parts. The reflective electrode is formed on the transparent electrode corresponding to the reflection region. The reflective electrode includes a silver alloy that includes silver (Ag) and impurities having a low solubility in the silver.
    Type: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Inventors: Jong-Seong Kim, Sung-Hwan Cho, Ho-Nam Yum, Jae-Hyun Kim, Jung-Woo Park, Bong-Sun Seo, Seong-Chul Hong, Seong-Ho Kim
  • Patent number: 7808588
    Abstract: A display substrate includes a transparent substrate, a pixel layer, an organic insulation layer, a transparent electrode and a reflective electrode. The pixel layer is formed on the transparent substrate. The pixel layer has pixel parts arranged in a matrix shape. Each of the pixel parts has a transmissive region and a reflective region. The organic insulation layer is formed on the pixel layer. The organic insulation layer has reflective patterns of decreasing size along a direction from a center of the reflective region to a periphery of the reflective region. The transparent electrode is formed on the organic insulation layer. The reflective electrode is formed on the transparent electrode such that the reflective electrode is disposed over the reflective region. Therefore reflectance efficiency of ambient light is enhanced.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: October 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Chul Hong, Sung-Hwan Cho, Jae-Hyun Kim, Bong-Sun Seo
  • Publication number: 20070195236
    Abstract: A display substrate includes a transparent substrate, a pixel layer, an organic insulating layer, a transparent electrode and a reflective electrode. The pixel layer is formed on the transparent substrate, and includes a plurality of pixel parts. Each of the pixel parts includes a transmission region and a reflection region. The organic insulating layer is formed on the pixel layer. The transparent electrode is formed on the organic insulating layer corresponding to each of the pixel parts. The reflective electrode is formed on the transparent electrode corresponding to the reflection region. The reflective electrode includes a silver alloy that includes silver (Ag) and impurities having a low solubility in the silver.
    Type: Application
    Filed: August 18, 2006
    Publication date: August 23, 2007
    Inventors: Jong-Seong Kim, Sung-Hwan Cho, Ho-nam Yum, Jae-Hyun Kim, Jung-Woo Park, Bong-Sun Seo, Seong-Chul Hong, Seong-Ho Kim
  • Publication number: 20070177077
    Abstract: A display substrate includes a transparent substrate, a pixel layer, an organic insulation layer, a transparent electrode and a reflective electrode. The pixel layer is formed on the transparent substrate. The pixel layer has pixel parts arranged in a matrix shape. Each of the pixel parts has a transmissive region and a reflective region. The organic insulation layer is formed on the pixel layer. The organic insulation layer has reflective patterns of decreasing size along a direction from a center of the reflective region to a periphery of the reflective region. The transparent electrode is formed on the organic insulation layer. The reflective electrode is formed on the transparent electrode such that the reflective electrode is disposed over the reflective region. Therefore reflectance efficiency of ambient light is enhanced.
    Type: Application
    Filed: November 30, 2006
    Publication date: August 2, 2007
    Inventors: Seong-chul Hong, Sung-Hwan Cho, Jae-Hyun Kim, Bong-Sun Seo