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).
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Publication number: 20240348238Abstract: 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: ApplicationFiled: June 24, 2024Publication date: October 17, 2024Inventors: Byung-Seong BAE, Eui-Joong YUN, Je-Hun YOE, Seo-Jin KANG, Hyuck-Su LEE, Jae-Geun WOO
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Patent number: 9996179Abstract: 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: GrantFiled: September 1, 2017Date of Patent: June 12, 2018Assignee: 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
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Patent number: 9891746Abstract: 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: GrantFiled: November 11, 2015Date of Patent: February 13, 2018Assignee: 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
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Patent number: 9864448Abstract: 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: GrantFiled: May 8, 2017Date of Patent: January 9, 2018Assignee: 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
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Publication number: 20170364188Abstract: 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: ApplicationFiled: September 1, 2017Publication date: December 21, 2017Inventors: Byung Seong BAE, Ho Sik JEON, Woo Young CHOI, Jong Uk KIM, Jun Suk LEE, So Hyun JEONG, Ju An YOON, Sang A OH
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Patent number: 9823771Abstract: 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: GrantFiled: November 11, 2015Date of Patent: November 21, 2017Assignee: 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
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Publication number: 20170242516Abstract: 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: ApplicationFiled: May 8, 2017Publication date: August 24, 2017Inventors: Byung Seong BAE, Ho Sik JEON, Woo Young CHOI, Jong Uk KIM, Jun Suk LEE, So Hyun JEONG, Ju An YOON, Sang A OH
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Patent number: 9679182Abstract: 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: GrantFiled: November 11, 2015Date of Patent: June 13, 2017Assignee: 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
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Publication number: 20160266695Abstract: 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: ApplicationFiled: March 10, 2016Publication date: September 15, 2016Inventors: 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
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Publication number: 20160132177Abstract: 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: ApplicationFiled: November 11, 2015Publication date: May 12, 2016Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
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Publication number: 20160132176Abstract: 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: ApplicationFiled: November 11, 2015Publication date: May 12, 2016Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
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Publication number: 20160132713Abstract: 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: ApplicationFiled: November 11, 2015Publication date: May 12, 2016Inventors: Byung Seong Bae, Ho Sik Jeon, Woo Young Choi, Jong Uk Kim, Jun Suk Lee, So Hyun Jeong, Ju An Yoon, Sang A Oh
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Patent number: 9214106Abstract: 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: GrantFiled: June 21, 2012Date of Patent: December 15, 2015Assignees: 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
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Patent number: 8687266Abstract: 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: GrantFiled: October 29, 2010Date of Patent: April 1, 2014Assignees: Dongjin Semichem Co., Ltd., Korea University Reseaerch and Business Foundation of Korea UniversityInventors: Chun-Hyuk Lee, Byung-Uk Kim, Mun-Pyo Hong, Hong Choi, Byung-Seong Bae
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Publication number: 20130208261Abstract: 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: ApplicationFiled: June 21, 2012Publication date: August 15, 2013Applicants: 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
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Publication number: 20120262777Abstract: 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: ApplicationFiled: October 29, 2010Publication date: October 18, 2012Applicants: 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
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Publication number: 20080024476Abstract: 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: ApplicationFiled: February 21, 2007Publication date: January 31, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Joon-Hoo CHOI, Kyuha CHUNG, Nam-Deog KIM, Byung-Seong BAE
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Patent number: 7271857Abstract: 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: GrantFiled: February 19, 2003Date of Patent: September 18, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Hoo Jung, Chang-Won Hwang, Byung-Seong Bae
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Publication number: 20070194316Abstract: 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: ApplicationFiled: February 20, 2007Publication date: August 23, 2007Applicants: SAMSUNG ELECTRONICS CO., LTD, KYUNGHEE UNIVERSITYInventors: Joon-hoo CHOI, Byung-seong BAE, Kyu-ha CHUNG, Nam-deog KIM, Joon-chul GOH
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Patent number: 7227597Abstract: 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: GrantFiled: March 18, 2005Date of Patent: June 5, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Byung-Hoo Jung, Chang-Won Hwang, Byung-Seong Bae