Patents by Inventor Cheon-Jae Maeng

Cheon-Jae Maeng 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: 20230335575
    Abstract: A display device including a display area and a non-display area includes: a light emitting element on a base layer in the display area; a dam member on the base layer in the non-display area; a color filter layer disposed in the display area and the non-display area and including an outer color filter layer disposed in the non-display area; and a cover layer on the color filter layer. The cover layer may cover at least a portion of the outer color filter layer.
    Type: Application
    Filed: October 28, 2022
    Publication date: October 19, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Woo LEE, Cheon Jae MAENG, Zu Seok OH, Jae Hyoung YOUN, Jeong Hyun LEE, Seung Jin CHU
  • Publication number: 20220302202
    Abstract: A display device comprises a first substrate, a first power bottom line on the first substrate, a second substrate on the first power bottom line, the second substrate having a first power connection hole to expose the first power bottom line, and a pixel driving unit including a plurality of switching elements on the second substrate.
    Type: Application
    Filed: October 28, 2021
    Publication date: September 22, 2022
    Inventors: Seung Min LEE, Kwang Young CHOI, Sae Hee RYU, Sol Ip JEONG, Sang Ho PARK, Jin Yool KIM, Cheon Jae MAENG
  • Patent number: 10768471
    Abstract: A liquid-crystal display device and a method of manufacturing a liquid-crystal display device. The liquid-crystal display device has a display area and a non-display area surrounding the display area defined therein, and the device includes: a first substrate; a second substrate disposed above the first substrate; and a liquid-crystal layer interposed between the first substrate and the second substrate. The first substrate includes a first base substrate, a first wavelength band filter disposed on the first base substrate in the non-display area, and a second wavelength band filter disposed on the first base substrate in the display area.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeong Ki Kim, Jea Heon Ahn, Jang Il Kim, Jong Hoon Kim, Cheon Jae Maeng
  • Publication number: 20190155094
    Abstract: A liquid-crystal display device and a method of manufacturing a liquid-crystal display device. The liquid-crystal display device has a display area and a non-display area surrounding the display area defined therein, and the device includes: a first substrate; a second substrate disposed above the first substrate; and a liquid-crystal layer interposed between the first substrate and the second substrate. The first substrate includes a first base substrate, a first wavelength band filter disposed on the first base substrate in the non-display area, and a second wavelength band filter disposed on the first base substrate in the display area.
    Type: Application
    Filed: March 14, 2018
    Publication date: May 23, 2019
    Inventors: Jeong Ki Kim, Jea Heon Ahn, Jang Il Kim, Jong Hoon Kim, Cheon Jae Maeng
  • Patent number: 9081235
    Abstract: A display panel includes a first substrate, a second substrate and a spacer disposed there between. The second substrate includes a black matrix pattern, a color filter, a dummy color filter and a common electrode. The black matrix pattern is formed with an opening portion which is filled by the color filter. The dummy color filter is made of same material as the color filter and extends in a vertical direction along which the spacer also extends. The spacer is formed between the first substrate and the second substrate in correspondence with location of the dummy color filter so that the effective spaced apart distance that the spacer provides between the first and second substrates is a function of a thickness of the dummy color filter.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Woo-Man Ji, Cheon-Jae Maeng, Jang-Soo Kim, Sang-Ho Kim
  • Patent number: 8994888
    Abstract: A display apparatus including a first substrate including a pixel area; a gate line disposed on the first substrate; a data line disposed on the first substrate and insulated from the gate line; an insulating layer pattern interposed between the gate line and the data line in an area where the gate line and the data line overlap; a gate insulating layer interposed between the gate line and the data line; a pixel electrode disposed in the pixel area; and a second substrate facing the first substrate.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-Seok Lee, Young-Je Cho, Cheon-Jae Maeng
  • Patent number: 8330164
    Abstract: A thin film transistor array panel includes: a substrate, a gate line disposed on the substrate, a data line intersecting the gate line, a drain electrode separated from the data line a first insulating layer covering the data line, a color filter disposed on the first insulating layer, a second insulating layer disposed on the color filter and having a contact hole exposing the drain electrode and the color filter and a pixel electrode disposed on the second insulating layer and connected to the drain electrode through the contact hole. The contact hole partially exposes the color filter near a portion where the drain electrode and the pixel electrode are connected to each other, and the pixel electrode covers the color filter exposed through the contact hole.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung-Sup Kim, Cheon-Jae Maeng, Jun-Young Jung, Dong-Hyun Yoo
  • Patent number: 8203662
    Abstract: Provided is a thin-film transistor (TFT) substrate. The TFT substrate includes: an insulating substrate; a semiconductor pattern which is formed on the insulating substrate, the semiconductor pattern having a top surface and a bottom surface; a source electrode and a drain electrode which are disposed on the top and bottom surfaces of the semiconductor pattern, respectively; a gate electrode which is disposed alongside the semiconductor pattern with a gate insulating film interposed therebetween; a data line which is connected to the source electrode and extends in a first direction; a gate line which is connected to the gate electrode and extends in a second direction; and a pixel electrode which is connected to the drain electrode and is formed in a pixel region.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: June 19, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoon Kang, Yun-Seok Lee, Jae-Sung Kim, Yang-Ho Jung, Young-Je Cho, Cheon-Jae Maeng, Woo-Geun Lee
  • Publication number: 20120120337
    Abstract: A display panel includes a first substrate, a second substrate and a spacer disposed there between. The second substrate includes a black matrix pattern, a color filter, a dummy color filter and a common electrode. The black matrix pattern is formed with an opening portion which is filled by the color filter. The dummy color filter is made of same material as the color filter and extends in a vertical direction along which the spacer also extends. The spacer is formed between the first substrate and the second substrate in correspondence with location of the dummy color filter so that the effective spaced apart distance that the spacer provides between the first and second substrates is a function of a thickness of the dummy color filter.
    Type: Application
    Filed: May 25, 2011
    Publication date: May 17, 2012
    Inventors: Woo-Man JI, Cheon-Jae Maeng, Jang-Soo Kim, Sang-Ho Kim
  • Patent number: 8134678
    Abstract: A liquid crystal display (LCD) panel with improved display characteristics includes a first display plate and a second display plate which face each other with a liquid crystal layer therebetween, a seal bonding the first display plate to the second display plate to prevent leakage of the liquid crystal layer, and an impurity blocking and liquid crystal flowing structure disposed inside a perimeter of the seal to prevent impurities from flowing from the seal to an active region in the first and second display plates while providing a flow path allowing liquid crystals to flow to the seal.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: March 13, 2012
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Yoon-jang Kim, Dong-jin Seo, Yun-seok Lee, Cheon-jae Maeng, Ji-hyeon Son, Jae-yong Shin
  • Publication number: 20110095293
    Abstract: A thin film transistor array panel includes: a substrate, a gate line disposed on the substrate, a data line intersecting the gate line, a drain electrode separated from the data line a first insulating layer covering the data line, a color filter disposed on the first insulating layer, a second insulating layer disposed on the color filter and having a contact hole exposing the drain electrode and the color filter and a pixel electrode disposed on the second insulating layer and connected to the drain electrode through the contact hole. The contact hole partially exposes the color filter near a portion where the drain electrode and the pixel electrode are connected to each other, and the pixel electrode covers the color filter exposed through the contact hole.
    Type: Application
    Filed: March 26, 2010
    Publication date: April 28, 2011
    Inventors: Myoung-Sup KIM, Cheon-Jae Maeng, Jun-Young Jung, Dong-Hyun Yoo
  • Patent number: 7742116
    Abstract: A display panel and a method of manufacturing the same in which a storage electrode is formed on a first base substrate, and an insulating layer is formed on the first base substrate to cover the storage electrode. The insulating layer is recessed directly above the storage electrode. A pixel electrode faces the storage electrode and is formed on the insulating layer. A protruding portion is formed on a second base substrate facing the first base substrate. The protruding portion protrudes toward a concaved portion of the insulating layer.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 22, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Je Cho, Yun-Seok Lee, Cheon-Jae Maeng, Byung-Hyun Kim
  • Publication number: 20100133539
    Abstract: Provided is a thin-film transistor (TFT) substrate. The TFT substrate includes: an insulating substrate; a semiconductor pattern which is formed on the insulating substrate, the semiconductor pattern having a top surface and a bottom surface; a source electrode and a drain electrode which are disposed on the top and bottom surfaces of the semiconductor pattern, respectively; a gate electrode which is disposed alongside the semiconductor pattern with a gate insulating film interposed therebetween; a data line which is connected to the source electrode and extends in a first direction; a gate line which is connected to the gate electrode and extends in a second direction; and a pixel electrode which is connected to the drain electrode and is formed in a pixel region.
    Type: Application
    Filed: September 30, 2009
    Publication date: June 3, 2010
    Inventors: Hoon KANG, Yun-Seok Lee, Jae-Sung Kim, Yang-Ho Jung, Young-Je Cho, Cheon-Jae Maeng, Woo-Geun Lee
  • Publication number: 20090303424
    Abstract: A liquid crystal display and a manufacturing method thereof. The liquid crystal display includes a first substrate and a second substrate, a thin film transistor formed on the first substrate, a color filter formed on the thin film transistor, an overcoat formed on the color filter and having a contact hole, a pixel electrode formed on the overcoat and connected to the thin film transistor through the contact hole, and a liquid crystal layer formed between the first substrate and the second substrate, wherein the overcoat except at the contact hole has the same planar shape as the pixel electrode. Accordingly, deterioration of the liquid crystal layer may be prevented in the liquid crystal display and a pattern of a pixel electrode may be easily formed.
    Type: Application
    Filed: November 14, 2008
    Publication date: December 10, 2009
    Inventors: Yun-Seok LEE, Cheon-Jae Maeng
  • Publication number: 20090230402
    Abstract: A display apparatus including a first substrate including a pixel area; a gate line disposed on the first substrate; a data line disposed on the first substrate and insulated from the gate line; an insulating layer pattern interposed between the gate line and the data line in an area where the gate line and the data line overlap; a gate insulating layer interposed between the gate line and the data line; a pixel electrode disposed in the pixel area; and a second substrate facing the first substrate.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yun-Seok LEE, Young-Je CHO, Cheon-Jae MAENG
  • Publication number: 20080149933
    Abstract: A display panel includes a first substrate, a second substrate and a spacer. The first substrate includes a gate line, a data line crossing the gate line to define a pixel area, and a storage electrode formed in the pixel area. The second substrate is coupled with the first substrate and includes a first black matrix corresponding to the storage electrode. The spacer is interposed between the first and second substrates to allow the first and second substrates are spaced apart from each other. Thus, an aperture ratio of the display panel may be improved and a manufacturing cost of the display panel may be reduced.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 26, 2008
    Inventors: Cheon-Jae Maeng, Yun-Seok Lee, Young-Je Cho, You-Hyun Jeong, Byung-Hyun Kim
  • Publication number: 20080088788
    Abstract: A display panel and a method of manufacturing the same in which a storage electrode is formed on a first base substrate, and an insulating layer is formed on the first base substrate to cover the storage electrode. The insulating layer is recessed directly above the storage electrode. A pixel electrode faces the storage electrode and is formed on the insulating layer. A protruding portion is formed on a second base substrate facing the first base substrate. The protruding portion protrudes toward a concaved portion of the insulating layer.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Je CHO, Yun-Seok LEE, Cheon-Jae MAENG, Byung-Hyun KIM
  • Publication number: 20070103634
    Abstract: A liquid crystal display (LCD) panel with improved display characteristics includes a first display plate and a second display plate which face each other with a liquid crystal layer therebetween, a seal bonding the first display plate to the second display plate to prevent leakage of the liquid crystal layer, and an impurity blocking and liquid crystal flowing structure disposed inside a perimeter of the seal to prevent impurities from flowing from the seal to an active region in the first and second display plates while providing a flow path allowing liquid crystals to flow to the seal.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 10, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD, SEOUL NATIONAL UNIVERSITY
    Inventors: Yoon-jang KIM, Dong-jin Seo, Yun-seok Lee, Cheon-jae Maeng, Ji-hyeon Son, Jae-yong Shin