Patents by Inventor Kwang-Sae Lee
Kwang-Sae Lee 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: 20240298487Abstract: A display device includes: a substrate in which a main display area, a first non-display area inside the main display area, and an auxiliary display area between the main display area and the first non-display area are defined; and a display unit including an auxiliary display and a main display. The auxiliary display is disposed on the auxiliary display area and includes a plurality of first auxiliary pixels, a plurality of second auxiliary pixels, and a plurality of third auxiliary pixels. The main display is disposed on the main display area and includes a plurality of main pixels. The plurality of first auxiliary pixels is commonly driven by a first driving signal, the plurality of second auxiliary pixels is commonly driven by a second driving signal, and the plurality of third auxiliary pixels is commonly driven by a third driving signal.Type: ApplicationFiled: April 29, 2024Publication date: September 5, 2024Inventors: Kwang Sae Lee, Ki Myeong Eom
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Patent number: 12004390Abstract: A display device includes: a substrate in which a main display area, a first non-display area inside the main display area, and an auxiliary display area between the main display area and the first non-display area are defined; and a display unit including an auxiliary display and a main display. The auxiliary display is disposed on the auxiliary display area and includes a plurality of first auxillary pixels, a plurality of second auxillary pixels, and a plurality of third auxillary pixels. The main display is disposed on the main display area and includes a plurality of main pixels. The plurality of first auxillary pixels is commonly driven by a first driving signal, the plurality of second auxiliary pixels is commonly driven by a second driving signal, and the plurality of third auxillary pixels is commonly driven by a third driving signal.Type: GrantFiled: April 16, 2019Date of Patent: June 4, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ki Myeong Eom
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Publication number: 20240169871Abstract: A display device includes a substrate including a display area and a non-display area disposed near the display area, a plurality of pixels disposed in the display area, a plurality of signal lines disposed on the substrate and connected to the pixels, and a pad portion disposed in the non-display area and including a plurality of pads. The signal lines include a first crack detecting line connected to a first test voltage pad and a first pad at a first node, connected to a second pad at a second node, and extending around the non-display area between the first node and the second node, as well as a first data line including a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.Type: ApplicationFiled: January 22, 2024Publication date: May 23, 2024Applicant: Samsung Display Co., LTD.Inventors: Kwang Sae LEE, Ji-Hyun KA, Won Kyu KWAK, Hwa Young SONG, Ki Myeong EOM
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Publication number: 20240119900Abstract: A display device includes first emission areas, second emission areas, and third emission areas for respectively emitting colors of light, first pixel electrodes, second pixel electrodes, and third pixel electrodes overlapping the first emission areas, the second emission areas, and the third emission areas, respectively, first data lines respectively connected to the first pixel electrodes, and overlapping some of the first emission areas, second data lines respectively electrically connected to the second pixel electrodes, overlapping some others of the first emission areas, and being spaced apart from the first data lines, and a demultiplexer configured to divide and output corresponding portions of an input, which is received from one fan-out line, to the first data lines and the second data lines.Type: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventors: Ah Young KIM, Won Kyu KWAK, Kwang Sae LEE
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Patent number: 11928994Abstract: A display device includes a substrate including a display area and a non-display area disposed near the display area, a plurality of pixels disposed in the display area, a plurality of signal lines disposed on the substrate and connected to the pixels, and a pad portion disposed in the non-display area and including a plurality of pads. The signal lines include a first crack detecting line connected to a first test voltage pad and a first pad at a first node, connected to a second pad at a second node, and extending around the non-display area between the first node and the second node, as well as a first data line including a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.Type: GrantFiled: June 4, 2019Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Hwa Young Song, Ki Myeong Eom
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Patent number: 11881131Abstract: A display device includes a substrate including a display area and a non-display area disposed near the display area, a plurality of pixels disposed in the display area, a plurality of signal lines disposed on the substrate and connected to the pixels, and a pad portion disposed in the non-display area and including a plurality of pads. The signal lines include a first crack detecting line connected to a first test voltage pad and a first pad at a first node, connected to a second pad at a second node, and extending around the non-display area between the first node and the second node, as well as a first data line including a first end connected to a first transistor connected to the first crack detecting line at the second node, and a second end connected to corresponding pixels from among the plurality of pixels.Type: GrantFiled: June 4, 2019Date of Patent: January 23, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Hwa Young Song, Ki Myeong Eom
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Publication number: 20230343259Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.Type: ApplicationFiled: June 27, 2023Publication date: October 26, 2023Inventors: KWANG SAE LEE, JUNG HOON SHIM, WON KYU KWAK, KI MYEONG EOM
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Patent number: 11763710Abstract: A display device including: a substrate including a display area and a peripheral area peripheral to the display area; a plurality of pads disposed in a pad area, wherein the pad area is disposed in the peripheral area and the pad area includes an integrated circuit (IC); and a first crack detecting line connected to a first pad and a second pad at a first node, and a third pad at a second node, wherein the first crack detecting line is disposed in the peripheral area between the first node and the second node.Type: GrantFiled: April 28, 2022Date of Patent: September 19, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Ji-Hyun Ka, Won Kyu Kwak, Ki Myeong Eom, Hai-Jung In
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Patent number: 11727836Abstract: A display device includes a display panel having a display area and a peripheral area. The display device includes a circuit having a comparator, and first and second sense wires disposed in the peripheral area and connected to the circuit. The comparator compares a first output signal output from the first sense wire and a second output signal output from the second sense wire to generate a comparison result. The circuit determines whether a defect is present in the display device based on the comparison result.Type: GrantFiled: January 13, 2022Date of Patent: August 15, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Jung Hoon Shim, Won Kyu Kwak, Ki Myeong Eom
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Publication number: 20230252923Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a display area where an image is displayed; a peripheral area disposed outside the display area; a hole area disposed within the display area; a hole crack detection line disposed adjacent to the hole area to surround the hole area and having a first end and a second end that is separated from the first end; a first detection line extending from the peripheral area and connected to the hole crack detection line to constitute a first closed circuit; a second detection line extending from the peripheral area and connected to the hole crack detection line to constitute a second closed circuit; and a circuit portion connected to the first detection line and the second detection lineType: ApplicationFiled: March 24, 2023Publication date: August 10, 2023Inventors: Kwang Sae LEE, Won Kyu KWAK, Ji-Hyun KA, Gyeong Nam BANG, Ki Myeong EOM
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Publication number: 20230237942Abstract: A display device includes a display area configured to include a plurality of pixels and a plurality of data lines connected to the pixels. A hole area is disposed within the display area. A hole crack detection line is disposed adjacent to the hole area and surrounds the hole area. The device includes first and second detection lines which include first and second detection transfer lines and first and second detection receiving lines, respectively. A test controller electrically connects the first detection receiving line to a first data line and the second detection receiving line to a second data line. Pixels connected to the first data line that is connected to a first bright-line transistor and pixels connected to the second data line that is connected to a second bright-line transistor are configured to emit light when a crack occurs in the hole crack detection line.Type: ApplicationFiled: March 30, 2023Publication date: July 27, 2023Inventors: Kwang Sae LEE, Won Kyu KWAK, Ki Myeong EOM
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Patent number: 11710458Abstract: A display device includes a display panel including an opening and a plurality of pixels that display an image, a crack detection line disposed along a periphery of the opening, and a plurality of data lines connected to the plurality of pixels. The crack detection line is connected to one of the plurality of data lines, and detects a crack at the periphery of the opening through a single pixel array connected to the one of the plurality of data lines.Type: GrantFiled: February 3, 2022Date of Patent: July 25, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Won Kyu Kwak, Ki Myeong Eom
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Patent number: 11657744Abstract: A display device includes a display area configured to include a plurality of pixels and a plurality of data lines connected to the pixels. A hole area is disposed within the display area. A hole crack detection line is disposed adjacent to the hole area and surrounds the hole area. The device includes first and second detection lines which include first and second detection transfer lines and first and second detection receiving lines, respectively. A test controller electrically connects the first detection receiving line to a first data line and the second detection receiving line to a second data line. Pixels connected to the first data line that is connected to a first bright-line transistor and pixels connected to the second data line that is connected to a second bright-line transistor are configured to emit light when a crack occurs in the hole crack detection line.Type: GrantFiled: May 3, 2022Date of Patent: May 23, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kwang Sae Lee, Won Kyu Kwak, Ki Myeong Eom
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Patent number: 11645959Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a display area where an image is displayed; a peripheral area disposed outside the display area; a hole area disposed within the display area; a hole crack detection line disposed adjacent to the hole area to surround the hole area and having a first end and a second end that is separated from the first end; a first detection line extending from the peripheral area and connected to the hole crack detection line to constitute a first closed circuit; a second detection line extending from the peripheral area and connected to the hole crack detection line to constitute a second closed circuit; and a circuit portion connected to the first detection line and the second detection line.Type: GrantFiled: January 7, 2022Date of Patent: May 9, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kwang Sae Lee, Won Kyu Kwak, Ji-Hyun Ka, Gyeong Nam Bang, Ki Myeong Eom
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Patent number: 11605324Abstract: A display device according to exemplary embodiments includes: a display panel including: a first opening and a second opening and displaying an image; a first crack sensing line disposed around the first opening; and a second crack sensing line disposed around the second opening, wherein a crack around the first opening is sensed by disconnection of the first crack sensing line, and a crack around the second opening is sensed by disconnection of the second crack sensing line.Type: GrantFiled: July 1, 2021Date of Patent: March 14, 2023Inventors: Kwang Sae Lee, Won Kyu Kwak, Ki Myeong Eom
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Publication number: 20230027500Abstract: A gate driver including a plurality of stages, each of the plurality of stages including an eighth transistor connected between a third power input terminal and an output terminal, the eighth transistor including a gate electrode connected to a fourth node, a seventh transistor connected between a second power input terminal and the output terminal, the seventh transistor including a gate electrode connected to a third node, an eleventh transistor connected between the third power input terminal and the fourth node, the eleventh transistor including a gate electrode connected to a first node, a twelfth transistor connected between the first node and the third node, the twelfth transistor including a gate electrode connected to the second power input terminal, and a third capacitor connected between the third power input terminal and the fourth node.Type: ApplicationFiled: October 3, 2022Publication date: January 26, 2023Inventors: Tae Hoon KWON, Ji Hyun KA, Nack Hyeon KEUM, Jae Jin SONG, Kwang Sae LEE
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Patent number: 11462173Abstract: A display device includes: a substrate including a display area and a non-display area; pixels connected to first scan lines, second scan lines, third scan lines, and emission control lines; a first scan driver supplying a first scan signal to the first scan lines; a second scan driver supplying a second scan signal to some of the second scan lines and supplying a third scan signal to the third scan lines; an emission driver supplying an emission control signal to the emission control lines; a first pad and a second pad provided in the non-display area; a first power line connected to the first pad, the first power line transferring a first voltage to the first scan driver and the emission driver; and a second power line connected to the second pad, the second power line transferring a second voltage to the second scan driver.Type: GrantFiled: January 11, 2021Date of Patent: October 4, 2022Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Kwon, Ji Hyun Ka, Nack Hyeon Keum, Jae Jin Song, Kwang Sae Lee
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Publication number: 20220262291Abstract: A display device includes a display area configured to include a plurality of pixels and a plurality of data lines connected to the pixels. A hole area is disposed within the display area. A hole crack detection line is disposed adjacent to the hole area and surrounds the hole area. The device includes first and second detection lines which include first and second detection transfer lines and first and second detection receiving lines, respectively. A test controller electrically connects the first detection receiving line to a first data line and the second detection receiving line to a second data line. Pixels connected to the first data line that is connected to a first bright-line transistor and pixels connected to the second data line that is connected to a second bright-line transistor are configured to emit light when a crack occurs in the hole crack detection line.Type: ApplicationFiled: May 3, 2022Publication date: August 18, 2022Inventors: Kwang Sae LEE, Won Kyu Kwak, Ki Myeong Eom
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Publication number: 20220262290Abstract: A display device including: a substrate including a display area and a peripheral area peripheral to the display area; a plurality of pads disposed in a pad area, wherein the pad area is disposed in the peripheral area and the pad area includes an integrated circuit (IC); and a first crack detecting line connected to a first pad and a second pad at a first node, and a third pad at a second node, wherein the first crack detecting line is disposed in the peripheral area between the first node and the second node.Type: ApplicationFiled: April 28, 2022Publication date: August 18, 2022Inventors: Kwang Sae LEE, Ji-Hyun KA, Won Kyu KWAK, Ki Myeong EOM, Hai-Jung IN
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Patent number: RE49899Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a plurality of pixels and a data line formed adjacent to the pixels and configured to transfer a data voltage. The display also includes a driving voltage line formed substantially parallel to the data line and configured to transfer a driving voltage, and an initialization voltage line formed substantially parallel to the data line and configured transfer an initialization voltage. At least one of the pixels includes a driving transistor including a driving gate electrode and configured to receive the initialization voltage from the initialization voltage line. A driving connector is spaced apart from the data line and electrically connected to the driving gate electrode. An OLED is electrically connected to the driving transistor, at least one of the initialization voltage line and the driving voltage line interposed between the driving connector and the data line.Type: GrantFiled: April 2, 2020Date of Patent: April 2, 2024Assignee: Samsung Display Co., Ltd.Inventor: Kwang Sae Lee