Patents by Inventor Byung-Seong Bae

Byung-Seong 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: 20240348238
    Abstract: A CMOS inverter circuit includes a first and second PMOS transistor connected in series to a power supply voltage (VDD) and a first NMOS transistor connected in series with the second PMOS transistor and to ground (GND). All transistors receive the same input signal. This configuration enables normal logic gate operation even when the P-channel characteristics of the PMOS transistors are shifted. The channel widths of the first and second PMOS transistors can be varied to adjust circuit performance.
    Type: Application
    Filed: June 24, 2024
    Publication date: October 17, 2024
    Inventors: Byung-Seong BAE, Eui-Joong YUN, Je-Hun YOE, Seo-Jin KANG, Hyuck-Su LEE, Jae-Geun WOO
  • Patent number: 9996179
    Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: June 12, 2018
    Assignee: Crucialtec Co., Ltd.
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Patent number: 9891746
    Abstract: A display apparatus capable of image scanning and a driving method thereof are provided. A display apparatus capable of image scanning includes a plurality of contact sensors each of which includes an N-type transistor, a P-type transistor connected to a gate electrode of the N-type transistor, and a sensing capacitor, the plurality of contact sensors being arranged so as not to cover a unit color pixel area of a color filter layer; a first scan line to which a selective signal is periodically applied, the first scan line being connected to a source electrode of the N-type transistor; a second scan line to which a selective signal is applied followed by the first scan line, the second scan line being connected to the gate electrode and source electrode of the P-type transistor; and a readout line connected to the drain electrode of the N-type transistor.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: February 13, 2018
    Assignee: CRUCIALTEC CO., LTD.
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Patent number: 9864448
    Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: January 9, 2018
    Assignee: Crucialtec Co., Ltd.
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20170364188
    Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventors: Byung Seong BAE, Ho Sik JEON, Woo Young CHOI, Jong Uk KIM, Jun Suk LEE, So Hyun JEONG, Ju An YOON, Sang A OH
  • Patent number: 9823771
    Abstract: According to an embodiment, the present invention provides a display apparatus capable of image scanning and a driving method thereof. According to an embodiment, the present invention provides a display apparatus capable of image scanning, including a plurality of contact sensors, each of them being arranged so as not to overlap a unit color pixel of a color filter layer and including only one sensing transistor generating a leakage current corresponding to the strength of light reflected from an outside object, a scan line applied with a selective signal selecting at least a part of the contact sensors among the plurality of contact sensors, and a readout line receiving an output signal corresponding to the amount of electric charge charged in a parasitic capacitance of the sensing transistor by the leakage current from a contact sensor applied with the selective signal.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: November 21, 2017
    Assignee: CRUCIALTEC CO., LTD.
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20170242516
    Abstract: A display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel. The contact sensor includes a pixel electrode forming a contact capacitance by contact with a contact means; a reset transistor where a drain electrode is connected to a node where the contact capacitance is formed, and each of a gate electrode and a source electrode is connected to a first scan line to which a selective signal is applied; an amplifying transistor where a gate electrode is connected to the drain electrode of the reset transistor; and a detecting transistor where a drain electrode is connected to the drain electrode of the amplifying transistor, a gate electrode is connected to a second scan line to which a selective signal is applied, and a source electrode is connected to a readout line detecting a current corresponding to the contact capacitance.
    Type: Application
    Filed: May 8, 2017
    Publication date: August 24, 2017
    Inventors: Byung Seong BAE, Ho Sik JEON, Woo Young CHOI, Jong Uk KIM, Jun Suk LEE, So Hyun JEONG, Ju An YOON, Sang A OH
  • Patent number: 9679182
    Abstract: According to an embodiment of the present invention, a display apparatus capable of image scanning and a method for driving the same are provided. According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: June 13, 2017
    Assignee: CRUCIALTEC CO., LTD.
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20160266695
    Abstract: Disclosed is a fingerprint-sensing display capable of sensing a fingerprint on a display screen. The display apparatus having an image scanning function includes an optical amplification cover, one side of which forms a display surface, including a transparent optical amplification layer configured to amplify an optical pattern generated by a fingerprint of a user in contact with the display surface and a cover window for reinforcement, a thin film transistor (TFT) array configured to drive a plurality of pixels forming an image, and an optical sensor array disposed between the optical amplification cover and the TFT array and configured to sense the optical pattern amplified by the optical amplification cover.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventors: Byung Seong Bae, Jong Uk Kim, Jae Heung Kim, Chang Sup Shim, Ga Won Choi, Ho Sik Jeon, Woo Young Choi, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20160132177
    Abstract: According to an embodiment, the present invention provides a display apparatus capable of image scanning and a driving method thereof. According to an embodiment, the present invention provides a display apparatus capable of image scanning, including a plurality of contact sensors, each of them being arranged so as not to overlap a unit color pixel of a color filter layer and including only one sensing transistor generating a leakage current corresponding to the strength of light reflected from an outside object, a scan line applied with a selective signal selecting at least a part of the contact sensors among the plurality of contact sensors, and a readout line receiving an output signal corresponding to the amount of electric charge charged in a parasitic capacitance of the sensing transistor by the leakage current from a contact sensor applied with the selective signal.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20160132176
    Abstract: According to an embodiment, a display apparatus capable of image scanning and a driving method thereof is provided. According to an embodiment, a display apparatus capable of image scanning, which includes a plurality of contact sensors each of which includes an N-type transistor, a P-type transistor connected to a gate electrode of the N-type transistor, and a sensing capacitor one end of which is connected to a drain electrode of the N-type transistor, the plurality of contact sensors being arranged so as not to cover a unit color pixel area of a color filter layer; a first scan line to which a selective signal is periodically applied, the first scan line being connected to a source electrode of the N-type transistor; a second scan line to which a selective signal is applied followed by the first scan line, the second scan line being connected to the gate electrode and source electrode of the P-type transistor; and a readout line connected to the drain electrode of the N-type transistor.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Publication number: 20160132713
    Abstract: According to an embodiment of the present invention, a display apparatus capable of image scanning and a method for driving the same are provided. According to an embodiment of the present invention, a display apparatus capable of image scanning is provided including a contact sensor arranged in each unit pixel.
    Type: Application
    Filed: November 11, 2015
    Publication date: May 12, 2016
    Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
  • Patent number: 9214106
    Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof. The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 15, 2015
    Assignees: HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Youn Han, Byung Seong Bae, Jun Ho Song, Sung Hoon Yang, Ho Sik Jeon
  • Patent number: 8687266
    Abstract: The present invention relates to an electric-field drive display device. According to one embodiment of the present invention, the electric-field drive display device comprises: a first substrate; a first electrode which is formed on the first substrate; a second electrode which is formed on the first substrate and is disposed in parallel with the first electrode; a drive partition wall which is formed on the first electrode and the second electrode and has a plurality of opening and closing holes; and a plurality of drive bodies which are disposed inside each of the opening and closing holes. Consequently, the electric-field drive display device according to one embodiment of the present invention can adjust the amount of light transmitted and so display the desired image by adjusting the positions of the drive bodies in the horizontal direction through the use of electrical force.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 1, 2014
    Assignees: Dongjin Semichem Co., Ltd., Korea University Reseaerch and Business Foundation of Korea University
    Inventors: Chun-Hyuk Lee, Byung-Uk Kim, Mun-Pyo Hong, Hong Choi, Byung-Seong Bae
  • Publication number: 20130208261
    Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.
    Type: Application
    Filed: June 21, 2012
    Publication date: August 15, 2013
    Applicants: HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Youn HAN, Byung Seong BAE, Jun Ho SONG, Sung Hoon YANG, Ho Sik JEON
  • Publication number: 20120262777
    Abstract: The present invention relates to an electric-field drive display device. According to one embodiment of the present invention, the electric-field drive display device comprises: a first substrate; a first electrode which is formed on the first substrate; a second electrode which is formed on the first substrate and is disposed in parallel with the first electrode; a drive partition wall which is formed on the first electrode and the second electrode and has a plurality of opening and closing holes; and a plurality of drive bodies which are disposed inside each of the opening and closing holes. Consequently, the electric-field drive display device according to one embodiment of the present invention can adjust the amount of light transmitted and so display the desired image by adjusting the positions of the drive bodies in the horizontal direction through the use of electrical force.
    Type: Application
    Filed: October 29, 2010
    Publication date: October 18, 2012
    Applicants: Korea University Research and Business Foundation of Korea University, Dongjin Semichem Co., Ltd.
    Inventors: Chun-Hyuk Lee, Byung-Uk Kim, Mun-Pyo Hong, Hong Choi, Byung-Seong Bae
  • Publication number: 20080024476
    Abstract: A display device and a driving method thereof include a plurality of light emitting elements arranged in a matrix form, for emitting different colors of light from each other, a plurality of driving transistors which supply a driving current to the light emitting elements, and photosensors which sense the amount of light emitted from the light emitting elements and produce a sense signal according to the sensed amount of light, the photosensors being positioned at a space between the plurality of light emitting elements.
    Type: Application
    Filed: February 21, 2007
    Publication date: January 31, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Joon-Hoo CHOI, Kyuha CHUNG, Nam-Deog KIM, Byung-Seong BAE
  • Patent number: 7271857
    Abstract: A source electrode and a metal pattern for a storage capacitor are formed on an insulating substrate, a silicon layer having a doped source region and a doped drain region is formed on the substrate and the source and the drain regions directly contact to the source electrode and the metal pattern. A gate insulating film is formed thereon, and a storage electrode is formed on the gate insulating film opposite the metal pattern. A passivation film covering the storage electrode is formed and the pixel electrode is formed thereon. The pixel electrode is directly connected to the drain region or to the metal pattern.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Hoo Jung, Chang-Won Hwang, Byung-Seong Bae
  • Publication number: 20070194316
    Abstract: A display apparatus includes; a switching transistor, a driving transistor, a control terminal of which is connected to an output terminal of the switching transistor, a storage capacitor provided between the output terminal of the switching transistor and an output terminal of the driving transistor, and a complementary metal oxide semiconductor (“CMOS”) transistor connected in parallel with a control terminal of the switching transistor.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 23, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD, KYUNGHEE UNIVERSITY
    Inventors: Joon-hoo CHOI, Byung-seong BAE, Kyu-ha CHUNG, Nam-deog KIM, Joon-chul GOH
  • Patent number: 7227597
    Abstract: A source electrode and a metal pattern for a storage capacitor are formed on an insulating substrate, a silicon layer having a doped source region and a doped drain region is formed on the substrate and the source and the drain regions directly contact to the source electrode and the metal pattern. A gate insulating film is formed thereon, and a storage electrode is formed on the gate insulating film opposite the metal pattern. A passivation film covering the storage electrode is formed and the pixel electrode is formed thereon. The pixel electrode is directly connected to the drain region or to the metal pattern.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: June 5, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-Hoo Jung, Chang-Won Hwang, Byung-Seong Bae