Patents by Inventor Kyong Sik CHOI

Kyong Sik CHOI 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: 20230260809
    Abstract: A laser light source is provided including an airtight container. A first resonance mirror and a second resonance mirror are disposed outside the airtight container. The first resonance mirror includes a lens unit and a reflection coating layer. The lens unit includes a first surface and a second surface, and the first surface is inclined with respect to the second surface.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 17, 2023
    Inventors: Kyong Sik CHOI, Dong Hoon Shin, Hoon Chul Ryoo, Kyeong Mok Kim, Jae-Woong Moon, Kyong Ho Park, Ki Hwan Seok, Myoung Seok Son, Hong Ro Lee
  • Patent number: 11705348
    Abstract: A laser light source is provided including an airtight container. A first resonance mirror and a second resonance mirror are disposed outside the airtight container. The first resonance mirror includes a lens unit and a reflection coating layer. The lens unit includes a first surface and a second surface, and the first surface is inclined with respect to the second surface.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: July 18, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong Sik Choi, Dong Hoon Shin, Hoon Chul Ryoo, Kyeong Mok Kim, Jae-Woong Moon, Kyong Ho Park, Ki Hwan Seok, Myoung Seok Son, Hong Ro Lee
  • Publication number: 20220120938
    Abstract: A laser crystallization apparatus includes light sources that emit a first laser beam and a second laser beam; a first beam homogenizer through which the first laser beam passes; a second beam homogenizer through which the second laser beam passes; and an optical array on which the first laser beam passed through the first beam homogenizer and the second laser beam passed through the second beam homogenizer are incident. A first path of the first laser beam passed through the first beam homogenizer and a second path of the second laser beam passed through the second beam homogenizer are different from each other. The first beam homogenizer includes first lenses having a first pitch. The second beam homogenizer includes second lenses having a second pitch. The first pitch of the first lenses and the second pitch of the second lenses are same each other.
    Type: Application
    Filed: July 19, 2021
    Publication date: April 21, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Dong Eon Lim, Kyong Sik Choi, Kwang-Jun Koo, Jeong-Mok Kim
  • Publication number: 20210066102
    Abstract: A laser light source is provided including an airtight container. A first resonance mirror and a second resonance mirror are disposed outside the airtight container. The first resonance mirror includes a lens unit and a reflection coating layer. The lens unit includes a first surface and a second surface, and the first surface is inclined with respect to the second surface.
    Type: Application
    Filed: May 14, 2020
    Publication date: March 4, 2021
    Inventors: Kyong Sik CHOI, Dong Hoon SHIN, Hoon Chul RYOO, Kyeong Mok KIM, Jae-Woong MOON, Kyong Ho PARK, Ki Hwan SEOK, Myoung Seok SON, Hong Ro LEE
  • Patent number: 10146097
    Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 4, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn Hak Jeong, Shi Yul Kim, Bum Ki Baek, Dong Hee Shin, Ho Jun Lee, Kyong Sik Choi
  • Patent number: 10108064
    Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 23, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn Hak Jeong, Shi Yul Kim, Bum Ki Baek, Dong Hee Shin, Ho Jun Lee, Kyong Sik Choi
  • Publication number: 20170148398
    Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.
    Type: Application
    Filed: February 3, 2017
    Publication date: May 25, 2017
    Inventors: Youn Hak JEONG, Shi Yul KIM, Bum Ki BAEK, Dong Hee SHIN, Ho Jun LEE, Kyong Sik CHOI
  • Patent number: 9568792
    Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: February 14, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn Hak Jeong, Shi Yul Kim, Bum Ki Baek, Dong Hee Shin, Ho Jun Lee, Kyong Sik Choi
  • Publication number: 20150359372
    Abstract: Disclosed is a mailbox remote control system comprising: a mailbox comprising a mailbox body having a mail slot, an mail slot opening and closing device which opens and closes the mail slot, a mail recognition unit provided to the mailbox body in order to recognize mail, a control unit for controlling the operation of the mail slot opening and closing device according to the results recognized by the mail recognition unit; and a control server for managing and processing information on the mail collected in the mailbox and transmitting, to a mailbox administer terminal, information on the collected mail and the mailbox of a corresponding mailbox.
    Type: Application
    Filed: January 14, 2014
    Publication date: December 17, 2015
    Inventors: Un Dae CHO, Kyong Sik CHOI
  • Patent number: 9158165
    Abstract: A display device includes a plurality of gate lines arranged substantially parallel to each other in a first direction; a plurality of charge share gate lines arranged substantially parallel to each other in the first direction; a plurality of data lines arranged substantially parallel to each other in a second direction, wherein the second direction is substantially perpendicular to the first direction; and a plurality of pixels arranged in a matrix form in along the first direction and the second direction and each of the plurality of pixels which includes a first switching element and a second switching element, wherein the a first gate line of the plurality of gate lines is electrically connected to the first switching element included in one individual pixel of the plurality of pixels, and the a second gate line of the plurality of gate lines is electrically connected to the second switching element included in the individual pixel of the plurality of pixels.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kee-Bum Park, Si Hyun Ahn, Kyong Sik Choi, Seon-Kyoon Mok, Eun Cho
  • Patent number: 9081237
    Abstract: A liquid crystal display panel, including: a first substrate including a common electrode; a second substrate including a plurality of pixels which are arranged in a matrix form and face the common electrode, wherein at least one of the pixels includes first and second subpixels; the first subpixel including a first subpixel electrode, wherein the first subpixel electrode includes a plurality of first micro branches, which are arranged at a first angle with respect to a polarization axis of a polarizer disposed adjacent to the first or second substrate; the second subpixel including a second subpixel electrode, wherein the second subpixel electrode includes a plurality of second micro branches, which are arranged at a second angle with respect to the polarization axis of the polarizer, wherein the first angle is different from the second angle by about 20° or less; and a liquid crystal layer interposed between the first and second substrates.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: July 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Patent number: 9057917
    Abstract: A liquid crystal display panel, including: a pixel electrode formed on a first substrate; an alignment layer formed on the pixel electrode, wherein the alignment layer includes an alignment layer material and aligns first liquid crystal molecules in a direction substantially perpendicular to the pixel electrode; and a photo hardening layer formed on the alignment layer, wherein the photo hardening layer includes a photo hardening layer material and aligns second liquid crystal molecules to be tilted with respect to the pixel electrode, wherein the alignment layer material and the photo hardening layer material have different polarities from each other.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: June 16, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Patent number: 9024857
    Abstract: Provided are a gate driving apparatus and a display device including the same. The gate driving apparatus includes a plurality of stages arranged sequentially, each stage is adapted to output a gate signal and including first output lines and a second output line, wherein the first output lines are electrically connected to a gate line corresponding to each of the stages and are adapted to transmit the gate signal to a plurality of pixels coupled to the gate line, the second output line is adapted to transmit the gate signal to a preceding stage of each of the stages, and the first output lines and the second output line share one contact pad.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 5, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Si-Hyun Ahn, Byoung-Sun Na, Kyong-Sik Choi, Hye-Rim Han, Seon-Kyoon Mok, So-Young Kim, Woo-Jung Shin
  • Patent number: 8865274
    Abstract: A liquid crystal display device is provided, including a liquid crystal layer interposed between a first display panel and a second display panel; and an alignment film formed on at least one of the first and second display panels, the alignment film including first polysiloxanes and second polysiloxanes disposed on the first polysiloxanes, wherein a first portion of silicon atoms of the second polysiloxanes are bonded to vertical functional groups interacting with liquid crystal molecules in the liquid crystal layer, and to first pre-tilting functional groups aligning the liquid crystal molecules in the liquid crystal layer to be tilted with respect to at least one of the first and second display panels by being cross-linked. The bonding structure of the first and the second polysiloxanes being different.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Patent number: 8833952
    Abstract: A display apparatus includes a display panel, a light source, a polarizer, and a transparent reflective element. The display panel includes a color filter including a first portion and a second portion in a pixel area. The first portion has a first light transmittance. The second portion has a second light transmittance higher than the first light transmittance. The light source provides a light to the display panel. The polarizer is disposed between the light source and the display. The polarizer polarizes the light. The transparent reflective element is spaced apart from the display panel. The transparent reflective element reflects an image provided from the display panel.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: September 16, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Woong Chang, Chul Huh, Kyong-Sik Choi, Sang-Hun Lee, Yui-Ku Lee
  • Publication number: 20140218655
    Abstract: A display device includes a gate line and a data line crossing the gate line. The display device further includes a first switching element and a second switching element each connected to the gate line and the data line. The display device further includes a first sub-pixel electrode and a second sub-pixel electrode connected to the first switching element and the second switching element, respectively. The display device further includes a reference voltage line for transmitting a reference voltage, a first portion of the first reference voltage line overlapping a first edge of the first sub-pixel electrode, a second portion of the first reference voltage line overlapping a second edge of the first sub-pixel electrode opposite the first edge of the first sub-pixel electrode. The display device further includes a third switching element connected to the gate line, the first sub-pixel electrode, and the reference voltage line.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Youn Hak JEONG, Shi Yul KIM, Bum Ki BAEK, Dong Hee SHIN, Ho Jun LEE, Kyong Sik CHOI
  • Publication number: 20130077284
    Abstract: A display apparatus includes a display panel, a light source, a polarizer, and a transparent reflective element. The display panel includes a color filter including a first portion and a second portion in a pixel area. The first portion has a first light transmittance. The second portion has a second light transmittance higher than the first light transmittance. The light source provides a light to the display panel. The polarizer is disposed between the light source and the display. The polarizer polarizes the light. The transparent reflective element is spaced apart from the display panel. The transparent reflective element reflects an image provided from the display panel.
    Type: Application
    Filed: August 24, 2012
    Publication date: March 28, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD
    Inventors: Jong-Woong Chang, Chul Huh, Kyong-Sik Choi, Sang-Hun Lee, Yui-Ku Lee
  • Publication number: 20120249940
    Abstract: A liquid crystal display device is provided, including a liquid crystal layer interposed between a first display panel and a second display panel; and an alignment film formed on at least one of the first and second display panels, the alignment film including first polysiloxanes and second polysiloxanes disposed on the first polysiloxanes, wherein a first portion of silicon atoms of the second polysiloxanes are bonded to vertical functional groups interacting with liquid crystal molecules in the liquid crystal layer, and to first pre-tilting functional groups aligning the liquid crystal molecules in the liquid crystal layer to be tilted with respect to at least one of the first and second display panels by being cross-linked. The bonding structure of the first and the second polysiloxanes being different.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 4, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyong-Sik Choi, Myung-Jae Park, Min-Wook Park, Sung-Hoon Kim, Gak-Seok Lee, Woo-Jung Shin, Jun-Hyup Lee, Keun-Chan Oh, Sang-Gyun Kim, Su-Jeong Kim, Seung-Beom Park, Youn-Hak Jeong
  • Publication number: 20120056858
    Abstract: Provided are a gate driving apparatus and a display device including the same. The gate driving apparatus includes a plurality of stages arranged sequentially, each stage is adapted to output a gate signal and including first output lines and a second output line, wherein the first output lines are electrically connected to a gate line corresponding to each of the stages and are adapted to transmit the gate signal to a plurality of pixels coupled to the gate line, the second output line is adapted to transmit the gate signal to a preceding stage of each of the stages, and the first output lines and the second output line share one contact pad.
    Type: Application
    Filed: March 29, 2011
    Publication date: March 8, 2012
    Inventors: Si-Hyun AHN, Byoung-Sun Na, Kyong-Sik Choi, Hye-rim Han, Seon-Kyoon Mok, So-Young Kim, Woo-Jung Shin
  • Patent number: D860538
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: September 17, 2019
    Assignee: KMC Exim Corp.
    Inventors: Dong Sung Kim, Kyong Sik Choi