Patents by Inventor Hyun-Chol Bang
Hyun-Chol Bang 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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Patent number: 12279498Abstract: An organic light emitting diode display includes a lower substrate, a sub-pixel structure, an upper substrate, a sealant, and a first power supply wire. The lower substrate has a display area, a peripheral area, and a pad area. The sub-pixel structure is disposed in the display area on the lower substrate. The upper substrate is disposed on the sub-pixel structure. The sealant is disposed in the peripheral area between the lower substrate and the upper substrate. The first power supply wire is disposed between the lower substrate and the sealant, and overlaps the lower substrate and the sealant. The first power supply wire includes a first protrusion protruding in a first direction that is a direction from the pad area to the display area in the first peripheral area.Type: GrantFiled: December 18, 2023Date of Patent: April 15, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Bongwon Lee, Yanghee Kim, Hyun-Chol Bang, Sujin Lee
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Patent number: 12238970Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.Type: GrantFiled: October 20, 2023Date of Patent: February 25, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hae-Yeon Lee, Hyun-Chol Bang, Su Jin Kim, Bong Won Lee
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Publication number: 20250054448Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.Type: ApplicationFiled: October 30, 2024Publication date: February 13, 2025Inventors: MI HAE KIM, MIN KYU WOO, YOUNG TAEG JUNG, HYUN CHOL BANG, SANG WON SEOK, HWAN SOO JANG, JU HEE HYEON
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Publication number: 20250053053Abstract: A display device includes a first display area including a plurality of first pixel areas and a second display area including a plurality of second pixel areas and a plurality of light transmitting areas. Each of the plurality of first pixel areas includes at least one first pixel to display an image. Each of the plurality of second pixel areas includes at least one second pixel to display the image. The light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area. In the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction.Type: ApplicationFiled: October 30, 2024Publication date: February 13, 2025Applicant: Samsung Display Co., Ltd.Inventors: Hyun-Chol BANG, Won Kyu KWAK, Dong Wook KIM, Jin Woo PARK, Sun-Ja KWON
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Patent number: 12217661Abstract: A display device includes a substrate including a display area and a non-display area adjacent to the display area, a plurality of pixels disposed on the display area of the substrate, and a switching unit disposed on the non-display area of the substrate, connected to each of the plurality of pixels, and including a plurality of first demultiplexers and a plurality of second demultiplexers having sizes different from sizes of the plurality of first demultiplexers.Type: GrantFiled: October 19, 2023Date of Patent: February 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Bongwon Lee, Dongsoo Kim, Hyungjun Park, Hyun-Chol Bang, Young-Soo Yoon, Taehyoung No, Yun-Kyeong In
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Patent number: 12193272Abstract: A display device including a display panel including a plurality of transistors and displaying an image on a front surface thereof; and a sensing module on a rear surface of the display panel, wherein the display panel includes a first region that overlaps the sensing module and a second region that does not overlap the sensing module, a W/L ratio of one of the transistors in the first region is greater than a W/L ratio of another of the transistors in the second region, the W/L ratio being obtained by dividing a width of a channel of the transistor by a length of the channel.Type: GrantFiled: August 21, 2023Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Park, Won Kyu Kwak, Dong Wook Kim, Hyun-Chol Bang
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Patent number: 12189223Abstract: A display device includes a substrate including a first display area and a second display area. The first display area includes first pixel areas, each including one or more first pixels. The second display area includes second pixel areas including one or more second pixels and a light transmittance area having a higher light transmittance than the second pixel area. The first and second display areas include a common electrode that transmits a constant common voltage. The common electrode in the second display area includes patterned regions that correspond to a first light transmittance area included in the light transmittance area. A thickness of the common electrode in the patterned regions is smaller than a thickness of the common electrode in a region other than the patterned regions or equals zero. The patterned regions and the second pixel areas extend alternately along a first direction in the second display area.Type: GrantFiled: October 31, 2022Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Wook Kim, Won Kyu Kwak, Jin Woo Park, Hyun-Chol Bang
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Patent number: 12159584Abstract: A display device includes a first pixel region including a plurality of first pixels and a plurality of first gate control lines coupled to the first pixels, and a second pixel region spaced apart from the first pixel region. The second pixel region includes a plurality of second pixels and a plurality of second gate control lines coupled to the second pixels. The display device further includes a first non-pixel region disposed between the first pixel region and the second pixel region, and a first coupling line disposed in the first non-pixel region. The first coupling line commonly couples at least two first gate control lines and at least two second gate control lines.Type: GrantFiled: August 10, 2023Date of Patent: December 3, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Mi Hae Kim, Min Kyu Woo, Young Taeg Jung, Hyun Chol Bang, Sang Won Seok, Hwan Soo Jang, Ju Hee Hyeon
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Patent number: 12144201Abstract: A display device includes a display panel including a first region and a second region, and a sensing module on a rear side of the display panel. The first region includes a first pixel area to display an image. The second region includes a second pixel area to display the image and a transmission area to transmit light output by the sensing module. The second region overlaps the sensing module. The second pixel area overlaps a first layer that blocks light output by the sensing module. The transmission area does not overlap the first layer.Type: GrantFiled: April 1, 2022Date of Patent: November 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Woo Park, Won Kyu Kwak, Dong Wook Kim, Hyun-Chol Bang
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Patent number: 12135487Abstract: A display device includes a first display area including a plurality of first pixel areas and a second display area including a plurality of second pixel areas and a plurality of light transmitting areas. Each of the plurality of first pixel areas includes at least one first pixel to display an image. Each of the plurality of second pixel areas includes at least one second pixel to display the image. The light transmitting area does not include a pixel capable of displaying the image and has higher light transmittance than the second pixel area. In the second display area, at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a first direction, and at least one of the plurality of light transmitting areas is between two second pixel areas adjacent in a second direction different from the first direction.Type: GrantFiled: April 17, 2023Date of Patent: November 5, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyun-Chol Bang, Won Kyu Kwak, Dong Wook Kim, Jin Woo Park, Sun-Ja Kwon
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Publication number: 20240334761Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.Type: ApplicationFiled: June 11, 2024Publication date: October 3, 2024Inventors: Jun Won CHOI, Dong Soo KIM, Hyun-Chol BANG, Chang Soo PYON, Ji-Eun LEE
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Patent number: 12016212Abstract: A display device includes signal lines and pixels connected thereto. A first pixel includes a first transistor including a first gate electrode, a first channel region overlapping the first gate electrode, a first source region, and a second drain region facing the first source region, with the first channel region interposed between the first source region and the second drain region. A third transistor includes a third gate electrode, a third channel region overlapping the third gate electrode, a third drain region connected to the first gate electrode, and a third source region facing the third drain region with the third channel region interposed between the third source region and the third drain region. A shielding part overlaps a boundary between the third source region and the third channel region and does not overlap a boundary between the third drain region and the third channel region.Type: GrantFiled: July 26, 2023Date of Patent: June 18, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jun Won Choi, Dong Soo Kim, Hyun-Chol Bang, Chang Soo Pyon, Ji-Eun Lee
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Publication number: 20240169900Abstract: A display device includes a substrate including a display area and a non-display area adjacent to the display area, a plurality of pixels disposed on the display area of the substrate, and a switching unit disposed on the non-display area of the substrate, connected to each of the plurality of pixels, and including a plurality of first demultiplexers and a plurality of second demultiplexers having sizes different from sizes of the plurality of first demultiplexers.Type: ApplicationFiled: October 19, 2023Publication date: May 23, 2024Applicant: Samsung Display Co., LTD.Inventors: BONGWON LEE, DONGSOO KIM, HYUNGJUN PARK, HYUN-CHOL BANG, YOUNG-SOO YOON, TAEHYOUNG NO, YUN-KYEONG IN
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Publication number: 20240122015Abstract: An organic light emitting diode display includes a lower substrate, a sub-pixel structure, an upper substrate, a sealant, and a first power supply wire. The lower substrate has a display area, a peripheral area, and a pad area. The sub-pixel structure is disposed in the display area on the lower substrate. The upper substrate is disposed on the sub-pixel structure. The sealant is disposed in the peripheral area between the lower substrate and the upper substrate. The first power supply wire is disposed between the lower substrate and the sealant, and overlaps the lower substrate and the sealant. The first power supply wire includes a first protrusion protruding in a first direction that is a direction from the pad area to the display area in the first peripheral area.Type: ApplicationFiled: December 18, 2023Publication date: April 11, 2024Inventors: BONGWON LEE, YANGHEE KIM, HYUN-CHOL BANG, SUJIN LEE
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Patent number: 11900890Abstract: A display device includes: scan, control, and emission control signal lines, signals transmitted thereby being different from one another; data and driving voltage lines; a first transistor including a first gate electrode and first source and drain; a second transistor including a second gate electrode connected to a first scan line, a second source connected to a first data line, and a second drain connected to the first source; a light-emitting element; a control transistor including a control gate electrode connected to a first control line and between the driving voltage line and the first source or the light-emitting element and the first drain; and an emission control transistor in series between the light-emitting element and the control transistor, the control transistor and the first transistor, or the driving voltage line and the control transistor, and an emission control gate electrode connected to the emission control signal line.Type: GrantFiled: December 5, 2022Date of Patent: February 13, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sung Hwan Kim, Chul Kyu Kang, Hyun-Chol Bang, Soo Hee Oh, Dong Sun Lee
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Publication number: 20240049509Abstract: An emissive display device includes a polycrystalline semiconductor including a channel, source region, and drain region of a driving transistor disposed on a substrate. The device includes a gate electrode of the driving transistor overlapping the channel of the driving transistor, an oxide semiconductor including a channel, a source region, and a drain region of a second transistor disposed on the substrate, and a first connection electrode. The first connection electrode includes a first connector electrically connected to the gate electrode of the driving transistor, a second connector electrically connected to a second electrode of the second transistor, and a main body disposed between the first connector and the second connector. The device includes an initialization voltage line disposed on the substrate and applying an initialization voltage. The initialization voltage line surrounds at least a part of the second connector of the first connection electrode.Type: ApplicationFiled: October 20, 2023Publication date: February 8, 2024Applicant: Samsung Display Co., LTD.Inventors: Hae-Yeon LEE, Hyun-Chol BANG, Su Jin KIM, Bong Won LEE
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Patent number: 11889706Abstract: A display device includes a substrate, pixels each including at least one transistor, a storage capacitor connected to the at least one transistor, and a light emitting element connected to the at least one transistor, scan lines connected to each of the pixels, a data line connected to each of the pixels, and a power line supplying a first power voltage to the light emitting element. The power line includes a first conductive pattern that extends in a first direction, and is provided on a first insulating interlayer, a second conductive pattern that extends in the first direction, is provided on a second insulating interlayer, and is connected to the first conductive pattern through a first contact hole, and a third conductive pattern that extends in a second direction, is provided on a third insulating interlayer, and is connected to the second conductive pattern through a second contact hole.Type: GrantFiled: September 12, 2019Date of Patent: January 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kyung Hoon Kim, Won Kyu Kwak, Mi Hae Kim, Hyun Chol Bang, Ki Myeong Eom, Jae Sic Lee
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Patent number: 11862645Abstract: A display device includes a substrate that includes a display area and a pad area, and a plurality of data pads that are provided on the pad area of the substrate and arranged along a first direction and a second direction, where the plurality of data pads includes a first data pad, a second data pad that is disposed adjacent to the first data pad along the first direction, a third data pad that is disposed adjacent to the first data pad along the second direction, and a fourth data pad that is disposed adjacent to the second data pad along the second direction, and the first data pad and the second connection wire are respectively disposed in different layers.Type: GrantFiled: January 12, 2021Date of Patent: January 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: So Young Lee, Dae-Hyun Noh, Hyun-Chol Bang, Sang Won Seo, Ju Hee Hyeon
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Patent number: 11854486Abstract: An organic light emitting diode display with improved aperture ratio includes: a substrate; first and second pixels disposed in a first row of the substrate and third and fourth pixels disposed in a second row adjacent to the first row and respectively disposed in the same columns as the first and second pixels; a scan line and a previous scan line applying a scan signal and a previous scan signal, respectively, to the pixel units; a data line and a driving voltage line applying a data signal and a driving voltage, respectively, to the pixel units; and a common initialization voltage line disposed between the first and second pixels and between the third and fourth pixels, commonly connected to the pixel units, and applying an initialization voltage. One common initialization contact hole connected to all pixels units and one initialization voltage line connected to the common initialization contact hole are surrounded by the pixel units.Type: GrantFiled: November 28, 2022Date of Patent: December 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ju-Hee Hyeon, Hyun-Chol Bang
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Patent number: 11849614Abstract: An organic light emitting diode display includes a lower substrate, a sub-pixel structure, an upper substrate, a sealant, and a first power supply wire. The lower substrate has a display area, a peripheral area, and a pad area. The sub-pixel structure is disposed in the display area on the lower substrate. The upper substrate is disposed on the sub-pixel structure. The sealant is disposed in the peripheral area between the lower substrate and the upper substrate. The first power supply wire is disposed between the lower substrate and the sealant, and overlaps the lower substrate and the sealant. The first power supply wire includes a first protrusion protruding in a first direction that is a direction from the pad area to the display area in the first peripheral area.Type: GrantFiled: April 8, 2022Date of Patent: December 19, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Bongwon Lee, Yanghee Kim, Hyun-Chol Bang, Sujin Lee