Patents by Inventor Bon-Yong Koo
Bon-Yong Koo 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: 20240155885Abstract: Provided is a display device. A display device includes a display area and a buffer area disposed around the display area, a pixel electrode disposed on a substrate and in the display area, a bank covering an edge of the pixel electrode, light emitting elements disposed on the pixel electrode and extending in a thickness direction of the substrate, and a buffer disposed on the substrate and in the buffer area. The bank and the buffer are disposed on a same layer.Type: ApplicationFiled: July 25, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Jung Hun NOH, Su Jin LEE, Bon Yong KOO, Ki Seong SEO, Ju Won YOON
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Publication number: 20240138188Abstract: A light emitting display device includes: a driving transistor including a driving gate electrode, and first and second electrodes; a storage capacitor including first and second storage electrodes; a second transistor including electrodes connected to a data line and the second storage electrode, respectively; a third transistor including electrodes connected to the second electrode of the driving transistor and the driving gate electrode, respectively; a hold capacitor including first and second hold electrodes connected to a first driving voltage line and the second storage electrode, respectively; and a ninth transistor including electrodes connected to the first driving voltage line and the first electrode of the driving transistor, respectively. The second storage and hold electrodes are integrally formed, the driving gate electrode and the first storage electrode are integrally formed, and the driving gate electrode, the second storage electrode, and the first hold electrode overlap each other.Type: ApplicationFiled: July 27, 2023Publication date: April 25, 2024Inventors: Hyun Joon KIM, Bon-Yong KOO, DANWON LIM, JAEYONG JANG
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Publication number: 20240130192Abstract: A display apparatus includes: a substrate; a pixel circuit layer on the substrate and including a thin-film transistor; a display element layer on the pixel circuit layer and including a display element electrically connected to the thin-film transistor; a color filter layer on the display element layer and including a color filter overlapping the display element and a black matrix having a first side contacting the color filter and a second side extending in an edge direction of the substrate; and a blocking layer between the black matrix and the substrate, wherein a tip end of the blocking layer has no step difference with an end of the black matrix.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Inventors: TAE WOO LIM, BON-YONG KOO, HYUNGJUNE KIM, EUNJE JANG, JANG-BOG JU
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Patent number: 11942017Abstract: A display device includes a display panel including a data driver that converts input data into a data signal and supplies the data signal to an output line, a pixel unit including pixels that display an image based on the data signal, a demultiplexer including transistors electrically connected to the output line in the display panel, and transmitting the data signal from the output line to data lines electrically connected to the pixels, and a timing controller that supplies control signals to control a supply timing of the data signal. A number of the transistors are electrically connected in series, and others of the transistors are electrically connected in parallel.Type: GrantFiled: March 29, 2022Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Yong Jang, Bon Yong Koo, Sun Hwa Lee, Su Jin Lee
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Publication number: 20240096281Abstract: A display device includes a display panel including a first pixel, a second pixel, and a connection line connecting the first pixel and the second pixel. Each of the first pixel and the second pixel includes a light emitting element, a first transistor including a first electrode, a second electrode electrically connected to the light emitting element, and a gate electrode, a second transistor connected between a first driving voltage line and a connection node and including a gate electrode connected to an emission line, a third transistor connected between a second driving voltage line and the connection node and including a gate electrode connected to the emission line, and a capacitor connected between the gate electrode of the first transistor and the connection node. The connection node of the first pixel is electrically connected to the connection node of the second pixel through the connection line.Type: ApplicationFiled: May 23, 2023Publication date: March 21, 2024Applicant: Samsung Display Co., Ltd.Inventors: DANWON LIM, HYUNJOON KIM, BON-YONG KOO
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Patent number: 11929034Abstract: A display device includes a first pixel. The first pixel includes a first light emitting unit electrically connected between a first power line and a second power line. A first driving transistor is electrically connected between the first power line and the first light emitting unit, and controls a current flowing into the first light emitting unit, based on a first data signal from a first data line to a gate electrode. A first initialization transistor is electrically connected between the gate electrode of the first driving transistor and a third power line. A first switching transistor is electrically connected between a first electrode of the first light emitting unit and a first sub-power line. The first light emitting unit includes light emitting elements. The first driving transistor includes a first semiconductor material, and the first initialization transistor includes a second semiconductor material different from the first semiconductor material.Type: GrantFiled: March 3, 2022Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Bon Yong Koo, Sun Hwa Lee, Su Jin Lee, Jae Yong Jang
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Patent number: 11923381Abstract: A display device may include a first conductive layer disposed on a substrate, and including an auxiliary bottom line and an additional conductive pattern; a first insulating layer disposed on the substrate and the first conductive layer; a semiconductor pattern disposed on the first insulating layer; a second insulating layer disposed on the first insulating layer and the semiconductor pattern; a second conductive layer disposed on the second insulating layer, and including a conductive pattern and a gate electrode; a third insulating layer disposed on the second insulating layer and the second conductive layer; a connection pattern disposed on the third insulating layer and electrically connected to the conductive pattern; a first electrode disposed on the connection pattern and electrically connected to the connection pattern; and at least one light emitting element disposed on the first electrode and electrically connected to the first electrode.Type: GrantFiled: September 15, 2022Date of Patent: March 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Yong Jang, Sun Hwa Lee, Bon Yong Koo, Su Jin Lee
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Publication number: 20240046855Abstract: An emission driver includes stages including a first group of stages. Each of the stages of the first group among the stages include a first carry signal output component that outputs a carry signal having a turn-on level based on a voltage of a first node, and outputs the carry signal having a turn-off level based on a voltage of a second node; a first emission signal output component that outputs an emission signal having a turn-on level based on the voltage of the first node, and outputs the emission signal having a turn-off level based on the voltage of the second node; a first node voltage setting component that sets the voltage of the first node; and a second node voltage setting component that sets the voltage of the second node.Type: ApplicationFiled: June 2, 2023Publication date: February 8, 2024Applicant: Samsung Display Co., LTD.Inventors: Su Jin LEE, Bon Yong KOO, Gyung Soon PARK, Dan Won LIM, Jae Yong JANG
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Publication number: 20240032340Abstract: A display device includes a support plate including first to third regions, and a display panel divided into first to third display regions overlapping the first to third regions, and including light emitting elements (LEs) and pixel circuits (PCs). The second display region includes a first partial region in which first and second PCs, and a first LE are disposed, and a second partial region in which a second LE is disposed. The third display region includes a third partial region in which third and fourth PCs, and a third LE are disposed to overlap a first support portion of the third region, and a fourth partial region in which a fourth LE is disposed to overlap each opening in the third region. A first separation distance between the second PC and the second LE is less than a second separation distance between the fourth PC and the fourth LE.Type: ApplicationFiled: April 21, 2023Publication date: January 25, 2024Inventors: TAEGYUN KIM, BON-YONG KOO, MINKYU WOO, SEON YOUNG CHOI, MINDO HEO
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Patent number: 11856803Abstract: A display apparatus includes: a substrate; a pixel circuit layer on the substrate and including a thin-film transistor; a display element layer on the pixel circuit layer and including a display element electrically connected to the thin-film transistor; a color filter layer on the display element layer and including a color filter overlapping the display element and a black matrix having a first side contacting the color filter and a second side extending in an edge direction of the substrate; and a blocking layer between the black matrix and the substrate, wherein a tip end of the blocking layer has no step difference with an end of the black matrix.Type: GrantFiled: July 1, 2021Date of Patent: December 26, 2023Assignee: Samsung Display Co., Ltd.Inventors: Tae Woo Lim, Bon-Yong Koo, Hyungjune Kim, Eunje Jang, Jang-Bog Ju
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Publication number: 20230413625Abstract: One or more embodiments of the present disclosure provides a display device in cluding: a substrate configured to include a display area including pixels and signal line s, and a peripheral area positioned around the display area; a semiconductor layer on t he substrate; a first conductive layer between the semiconductor layer and the substrat e; a second conductive layer positioned between the first conductive layer and the sem iconductor layer; a gate conductive layer on the semiconductor layer; and a third condu ctive layer on the gate conductive layer, wherein the peripheral area includes a fan-out portion in which fan-out wires connected to the signal lines are positioned, and the fan-out wires include a first fan-out wire, a second fan-out wire, and a third fan-out wire whi ch are alternately positioned in different ones among the first conductive layer, the sec and conductive layer, and the gate conductive layer.Type: ApplicationFiled: May 8, 2023Publication date: December 21, 2023Inventors: Bon-Yong KOO, SUJIN LEE, DANWON LIM, JAEYONG JANG
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Publication number: 20230413621Abstract: A display device includes: a display panel including an active area to be slid in a first direction and a non-active area surrounding the active area; a plurality of pixels in the active area; and a first power supply to transfer a first power voltage to drive the plurality of pixels, wherein the active area includes: a first active area; and a second active area on one side of the first active area in the first direction and configured to be slid in the first direction, the first power supply includes: a first voltage bar on one side of the first active area in the non-active area in a second direction crossing the first direction; a second voltage bar spaced apart from one end of the first voltage bar in the first direction and on one side of the second active area in the non-active area in the second direction.Type: ApplicationFiled: January 11, 2023Publication date: December 21, 2023Inventors: Jae Yong JANG, Dan Won LIM, Bon Yong KOO, Su Jin LEE
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Publication number: 20230298515Abstract: A display substrate includes: a pixel circuit including: a switching transistor connected between a first terminal of a compensation capacitor and a data line; and a pixel transistor connected between a second terminal of the compensation capacitor and a first voltage line, the pixel transistor to receive a test voltage; and a test transistor including: a test gate terminal to receive a test signal; a test source terminal electrically connected to the first voltage line; and a test drain terminal electrically connected to the data line.Type: ApplicationFiled: May 26, 2023Publication date: September 21, 2023Inventors: BON-YONG KOO, SUJIN LEE, JAEYONG JANG
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Publication number: 20230253536Abstract: A display device includes a substrate, an insulating film disposed on the substrate, a first sub-power supply line disposed on the insulating film and applied by a first power supply voltage, a first organic film disposed on the first sub-power supply line, a second sub-power supply line disposed on the first organic film and electrically connected to the first sub-power supply line through a first power supply hole formed in the first organic film, a third sub-power supply line disposed on the second sub-power supply line, a pixel electrode disposed on the first organic film, a light-emitting element disposed on the pixel electrode, a planarization film disposed on sides of the light-emitting element, and a common electrode disposed on the light-emitting element and the planarization film. The planarization film is disposed on the third sub-power supply line.Type: ApplicationFiled: November 1, 2022Publication date: August 10, 2023Applicant: Samsung Display Co., LTD.Inventors: Bon Yong KOO, Sun Hwa LEE, Su Jin LEE, Jae Yong JANG
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Patent number: 11663958Abstract: A display substrate includes: a pixel circuit including: a switching transistor connected between a first terminal of a compensation capacitor and a data line; and a pixel transistor connected between a second terminal of the compensation capacitor and a first voltage line, the pixel transistor to receive a test voltage; and a test transistor including: a test gate terminal to receive a test signal; a test source terminal electrically connected to the first voltage line; and a test drain terminal electrically connected to the data line.Type: GrantFiled: March 15, 2022Date of Patent: May 30, 2023Assignee: Samsung Display Co., Ltd.Inventors: Bon-Yong Koo, Sujin Lee, Jaeyong Jang
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Patent number: 11657760Abstract: A light emission driver includes a plurality of stages outputs a light emission control signal. Each of the stages includes an input circuit controlling voltages of a first node and a second node, an output circuit supplying a voltage of first power or a second power to an output terminal, a first signal processor controlling a voltage of a fourth node based on a signal supplied to a third input terminal and a voltage of a fifth node, a second signal processor controlling the voltage of the fourth node in response to the voltage of a third node, a first stabilizer limiting voltage drops of the first node and the second node, and a second stabilizer controlling an electrical connection between the third node and the first node in response to the voltage of the fourth node.Type: GrantFiled: June 1, 2020Date of Patent: May 23, 2023Assignee: Samsung Display Co., Ltd.Inventors: Jun Hyun Park, Bon Yong Koo, Yu Jin Lee, Kyung Hoon Chung
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Publication number: 20230132129Abstract: A display device a pixel circuit layer disposed on a substrate and including a first pixel circuit area and a second pixel circuit area; and a display element layer disposed on the pixel circuit layer and including a first electrode and a second electrode. The display element layer includes light emitting elements arranged in a matrix form defined by a first arrangement direction and a second arrangement direction, and the first electrode and the second electrode are rotated by an angle, respectively.Type: ApplicationFiled: August 11, 2022Publication date: April 27, 2023Applicant: Samsung Display Co., LTD.Inventors: Bon Yong KOO, Sun Hwa LEE, Su Jin LEE, Jae Yong JANG
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Publication number: 20230117174Abstract: A display device includes: a substrate including a display area including a plurality of pixels for displaying an image and a non-display area disposed around the display area; data lines disposed in the display area and which receive data signals; and first fan-out lines and second fan-out lines in the non-display area and connected to the data lines. Each of the first fan-out lines includes a first sub-fan-out line and a second sub-fan-out line which overlap each other in a plan view, each of the second fan-out lines includes a third sub-fan-out line and a fourth sub-fan-out line which overlap each other in the plan view, and the first sub-fan-out line, the second sub-fan-out line, the third sub-fan-out line, and the fourth sub-fan-out line are disposed in different conductive layers from each other.Type: ApplicationFiled: June 6, 2022Publication date: April 20, 2023Inventors: Bon Yong KOO, Su Jin LEE, Dan Won LIM, Jae Yong JANG
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Publication number: 20230112698Abstract: A display device includes a display area and a non-display area; pixels disposed in the display area; a pad area including pads, the pad area being disposed in the non-display area; first power lines electrically connected to the pixels in the display area; first fan-out lines extending in a first direction in the non-display area, the first fan-out lines being electrically connected to the pads; and a first power connection line extending in a second direction intersecting the first direction in the non-display area, the first power connection line electrically connecting the first power lines to the first fan-out lines. A width of a central part of the first power connection line in the first direction is wider than a width of an outer part of the first power connection line in the first direction.Type: ApplicationFiled: August 11, 2022Publication date: April 13, 2023Applicant: Samsung Display Co., LTD.Inventors: Sun Hwa LEE, Bon Yong KOO, Su Jin LEE, Jae Yong JANG
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Publication number: 20230116832Abstract: A display device may include a first conductive layer disposed on a substrate, and including an auxiliary bottom line and an additional conductive pattern; a first insulating layer disposed on the substrate and the first conductive layer; a semiconductor pattern disposed on the first insulating layer; a second insulating layer disposed on the first insulating layer and the semiconductor pattern; a second conductive layer disposed on the second insulating layer, and including a conductive pattern and a gate electrode; a third insulating layer disposed on the second insulating layer and the second conductive layer; a connection pattern disposed on the third insulating layer and electrically connected to the conductive pattern; a first electrode disposed on the connection pattern and electrically connected to the connection pattern; and at least one light emitting element disposed on the first electrode and electrically connected to the first electrode.Type: ApplicationFiled: September 15, 2022Publication date: April 13, 2023Applicant: Samsung Display Co., LTDInventors: Jae Yong JANG, Sun Hwa LEE, Bon Yong KOO, Su Jin LEE