Patents by Inventor Joo-Han Bae

Joo-Han Bae 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: 20140176893
    Abstract: A display device according to an exemplary embodiment of the present invention includes a substrate including a plurality of pixel regions, a thin film transistor disposed on the substrate, and a pixel electrode connected to the thin film transistor and disposed in a first pixel region. A roof layer is disposed on the pixel electrode and spaced apart from the pixel electrode with a microcavity interposed therebetween. The plurality of pixel regions is disposed in a matrix form including a plurality of pixel rows and a plurality of pixel columns, the roof layer is disposed along the plurality of pixel rows, and the roof layer includes a bridge portion connecting the roof layers disposed in different pixel rows.
    Type: Application
    Filed: April 25, 2013
    Publication date: June 26, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Koichi SUGITANI, Seong Gyu Kwon, Joo-Han Bae, Hoon Kang, Jae-Sung Kim, Jin-Young Choi, Jin Ho Ju, Dong Hyun Yu, Hyung-Il Jeon
  • Patent number: 8729551
    Abstract: A flat panel display includes; a first substrate, a white reflective layer disposed on the first substrate, a pixel electrode disposed on the white reflective, a second substrate disposed facing the first substrate, a common electrode disposed on the second substrate, and an electrooptic layer disposed between the pixel electrode and the common electrode, wherein the white reflective layer includes at least one of TiO2 and BaSO4.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Seok Roh, Jung-Woo Park, Dae-Jin Park, Yu-Jin Kim, Joo-Han Bae, Tae-Hyung Hwang, Seok-Joon Hong
  • Patent number: 8730225
    Abstract: An electro-wetting display device includes a polar fluid layer, a pixel electrode, a non-polar black fluid layer, a driving electrode, and a color fluid layer. The non-polar black fluid is deformed by a voltage difference between a voltage applied to the pixel electrode and a voltage applied to the polar fluid layer. the non-polar color fluid is deformed by a voltage difference between a voltage applied to the driving electrode and a voltage applied to the polar fluid layer. The driving electrode receives a voltage having a voltage level varied according to a display mode.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: May 20, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Bae, Tae Hyung Hwang, JungWoo Park, Kyungtae Chae, Hyung-II Jeon, Seok-Joon Hong
  • Patent number: 8514479
    Abstract: An electro-wetting display includes a first substrate, a second substrate which faces the first substrate, and a fluid layer between the first and second substrates. The first substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines. A fluid layer includes a first fluid layer having a color and a second fluid layer which is transparent. Each pixel includes a switching device, a pixel electrode in connection with the switching device, and a spacing electrode. The switching device is connected to an i-th gate line of the gate lines and a j-th data line of the data lines. The spacing electrode is adjacent to a side of the pixel electrode and in connection with a (i?1)th gate line of the gate lines.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Bae, Tae Hyung Hwang, Kyungtae Chae, Sang-Myoung Lee, Seok-Joon Hong
  • Publication number: 20130083390
    Abstract: A display substrate including a base substrate, a plurality of pixel electrodes and a plurality of sub pixel electrodes. The pixel electrodes are formed on the base substrate, are spaced apart from each other, and are electrically connected with a plurality of transistors, respectively. The sub pixel electrodes are disposed between the pixel electrodes, and are electrically connected with a thin-film transistor (TFT). Thus, quality of an image displayed by the display apparatus may be enhanced.
    Type: Application
    Filed: May 11, 2012
    Publication date: April 4, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Tae-Hyung HWANG, Joo-Han BAE, Joon-Youp KIM
  • Publication number: 20130033740
    Abstract: An electrophoretic display device is provided. The device includes an array substrate including a plurality of pixels, an opposite substrate facing the array substrate, and an electrophoretic layer provided between the array substrate and the opposite substrate. The electrophoretic layer includes a non-polar solvent and at least two types of polar particles dispersed in the non-polar solvent that display different colors from each other. One of the array substrate and the opposite substrate includes a plurality of capturing holes configured to capture the polar particles when an electric field is applied between the array substrate and the opposite substrate.
    Type: Application
    Filed: January 23, 2012
    Publication date: February 7, 2013
    Inventors: Seok-Joon Hong, Yujin Kim, Joo-Han Bae, Hyung-Il Jeon
  • Patent number: 8367281
    Abstract: A photoresist layer exposed through first slits of a mask is exposed using first light. The photoresist layer exposed through second slits of the mask is exposed by using second light. The first light passes thorough a transflective shutter to generate the second light.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bo-Kyoung Ahn, Gug-Rae Jo, Hong-Suk Yoo, Chang-Hoon Kim, Min-Uk Kim, Joo-Han Bae
  • Publication number: 20120280958
    Abstract: In an electrophoretic display apparatus, a first substrate includes a plurality of pixels each including at least two sub-pixels which display colors different from each other, and a second substrate which faces the first substrate and includes a reference electrode corresponding to a boundary between adjacent sub-pixels in each pixel. An electrophoretic material is between the first substrate and the second substrate. A barrier wall is between the first substrate and the second substrate, and defines the pixels.
    Type: Application
    Filed: September 8, 2011
    Publication date: November 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: SonUk LEE, SEONGGYU KWON, NAMSEOK ROH, TAE HYUNG HWANG, Joo-Han BAE, Sang-Hee JANG
  • Publication number: 20120262774
    Abstract: An electro-wetting display includes a first substrate, a second substrate which faces the first substrate, and a fluid layer between the first and second substrates. The first substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines. A fluid layer includes a first fluid layer having a color and a second fluid layer which is transparent. Each pixel includes a switching device, a pixel electrode in connection with the switching device, and a spacing electrode. The switching device is connected to an i-th gate line of the gate lines and a j-th data line of the data lines. The spacing electrode is adjacent to a side of the pixel electrode and in connection with a (i?1)th gate line of the gate lines.
    Type: Application
    Filed: November 10, 2011
    Publication date: October 18, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Han BAE, TAE HYUNG HWANG, KYUNGTAE CHAE, Sang-Myoung LEE, Seok-Joon HONG
  • Publication number: 20120190220
    Abstract: A display apparatus includes a display panel, and at least one flexible printed circuit board connected to the display panel. The display panel includes signal lines, pixels connected to the signal lines, and contact pads provided at one end of the signal lines. The flexible printed circuit board includes a fan-out part including a plurality of connection lines corresponding to the contact pads in a one-to-one correspondence, overlapping with the contact pads and connected to the contact pads, and a driving driver connected to the connection lines, the driving driver applying a driving signal to the pixels.
    Type: Application
    Filed: June 28, 2011
    Publication date: July 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Myoung LEE, Namseok ROH, Kyungtae CHAE, Hyung-Il JEON, Joo-Han BAE, Jihoon YANG
  • Publication number: 20120098812
    Abstract: An electro-wetting display device includes a polar fluid layer, a pixel electrode, a non-polar black fluid layer, a driving electrode, and a color fluid layer. The non-polar black fluid is deformed by a voltage difference between a voltage applied to the pixel electrode and a voltage applied to the polar fluid layer. the non-polar color fluid is deformed by a voltage difference between a voltage applied to the driving electrode and a voltage applied to the polar fluid layer. The driving electrode receives a voltage having a voltage level varied according to a display mode.
    Type: Application
    Filed: August 2, 2011
    Publication date: April 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo-Han BAE, Tae Hyung HWANG, JungWoo PARK, Kyungtae CHAE, Hyung-Il JEON, Seok-Joon HONG
  • Publication number: 20120037018
    Abstract: Exemplary embodiments of the present invention disclose a pattern transfer device and a pattern transfer method. The pattern transfer device may include a printing plate stage to load a printing plate having a pattern of a predetermined shape, and a substrate stage to load a substrate on which the pattern formed on the printing plate is to be printed. The pattern transfer device also includes a pressure unit configured with the printing plate stage to apply pressure to the printing plate, and a printing unit to transfer the pattern formed on the printing plate to the substrate.
    Type: Application
    Filed: March 29, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-Uk KIM, Gug-Rae JO, Joo-Han BAE
  • Publication number: 20110227080
    Abstract: A flat panel display includes; a first substrate, a white reflective layer disposed on the first substrate, a pixel electrode disposed on the white reflective, a second substrate disposed facing the first substrate, a common electrode disposed on the second substrate, and an electrooptic layer disposed between the pixel electrode and the common electrode, wherein the white reflective layer includes at least one of TiO2 and BaSO4.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam-Seok ROH, Jung-Woo PARK, Dae-Jin PARK, Yu-Jin KIM, Joo-Han BAE, Tae-Hyung HWANG, Seok-Joon HONG
  • Publication number: 20110100546
    Abstract: A liquid crystal layer is formed by coating a liquid crystal material having a reciprocal (Z?1) of an Ohnesorge number in a range of 4?Z?1?14 by an ink-jet printing method. The reciprocal (Z?1) of the Ohnesorge number is a dimensionless number defined as Z?1=([??L]1/2)/?.
    Type: Application
    Filed: May 4, 2010
    Publication date: May 5, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dae-Hwan JANG, Gug-Rae JO, Hong-Suk YOO, Chang-Hoon KIM, Min-Uk KIM, Joo-Han BAE, Bo-Kyoung AHN
  • Publication number: 20100261105
    Abstract: A photoresist layer exposed through first slits of a mask is exposed using first light. The photoresist layer exposed through second slits of the mask is exposed by using second light. The first light passes thorough a transflective shutter to generate the second light.
    Type: Application
    Filed: May 12, 2010
    Publication date: October 14, 2010
    Inventors: Bo-Kyoung Ahn, Gug-Rae Jo, Hong-Suk Yoo, Chang-Hoon Kim, Min-Uk Kim, Joo-Han Bae
  • Publication number: 20100032017
    Abstract: In a solar cell and a method of manufacturing the solar cell, when a semiconductor pattern, bottom electrodes and top electrodes are patterned, a first mask pattern having different thicknesses according to location, a second mask pattern formed by etching back the first mask pattern, and a third mask pattern by etching back the second mask pattern are used etch masks. The first mask pattern may be easily manufactured using an imprint method utilizing a mold.
    Type: Application
    Filed: May 11, 2009
    Publication date: February 11, 2010
    Inventor: Joo-Han Bae