Patents by Inventor Yong-Ho Yang
Yong-Ho Yang 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: 10978537Abstract: An organic light emitting diode display includes a substrate, a plurality of pixels disposed on the substrate, a plurality of transmissive windows spaced apart from the pixels, and a light blocking member disposed between one of the pixels and one of the transmissive windows. The pixels display an image, and light is transmitted through the transmissive windows. Each pixel includes a transistor including a plurality of electrode members disposed in different layers on the substrate. The light blocking member includes a plurality of light blocking sub-members respectively disposed in the same layers as the plurality of electrode members.Type: GrantFiled: May 1, 2017Date of Patent: April 13, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kohei Ebisuno, Yong Ho Yang, Jun Hee Lee, Nak Cho Choi
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Publication number: 20210097937Abstract: An organic light emitting diode display includes a first transistor disposed on a substrate and including a gate electrode, an input electrode, and an output electrode, a second transistor electrically connected to a scan line, a data line, and the input electrode of the first transistor, a third transistor including a gate electrode, a first electrode electrically connected to the output electrode of the first transistor, and a second electrode electrically connected to the gate electrode of the first transistor, and an overlapping layer that overlaps the gate electrode of the third transistor in a plan view. The overlapping layer is disposed between the substrate and a semiconductor layer of the third transistor.Type: ApplicationFiled: December 11, 2020Publication date: April 1, 2021Applicant: Samsung Display Co., Ltd.Inventors: Seong Min WANG, Yong Ho YANG, Sung Ho KIM, Young-In HWANG
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Publication number: 20210090502Abstract: Provided are a pixel circuit and a display device having the pixel circuit. The pixel circuit includes an organic light emitting diode, a switching transistor, a storage capacitor, and a driving transistor. The switching transistor is turned off when a scan signal has a first voltage and turned on when the scan signal has a second voltage. The storage capacitor stores a data voltage when the switching transistor is turned on in response to the scan signal. The driving transistor is electrically connected with the organic light emitting diode between a high power supply voltage and a low power supply voltage to provide a driving current to the organic light emitting diode, and includes a first bottom gate electrode that is provided with the first voltage. The driving current corresponds to the data voltage stored in the storage capacitor.Type: ApplicationFiled: September 22, 2020Publication date: March 25, 2021Applicant: Samsung Display Co., LTD.Inventors: Jung-Mi CHOI, Young-In HWANG, Eung Taek KIM, Yong Ho YANG, Joo Hyeon JO, Seong Baik CHU
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Patent number: 10950177Abstract: A display device may include a first pixel coupled to an emission control line, and an emission control stage for selectively coupling the emission control line to a first or second supply voltage line. The emission control stage may include: a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node; a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node; and a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode.Type: GrantFiled: February 19, 2019Date of Patent: March 16, 2021Inventors: Seong Min Wang, Young In Hwang, Jin Woo Park, Yong Ho Yang
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Patent number: 10942385Abstract: A display device includes a display panel having a first side including a display area configured to emit light and a second side opposite the first side, an auxiliary layer disposed on the second side of the display area and including an opening, a sensor overlapping the opening, and an adhesive layer connected between the sensor and the auxiliary layer.Type: GrantFiled: November 29, 2018Date of Patent: March 9, 2021Assignee: Samsung Display Co., Ltd.Inventors: Seong Min Wang, Beohm Rock Choi, Yong Ho Yang
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Patent number: 10909921Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.Type: GrantFiled: March 18, 2019Date of Patent: February 2, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Young-In Hwang, Sung Ho Kim, Yong Ho Yang, Seong Min Wang
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Patent number: 10902774Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.Type: GrantFiled: February 25, 2019Date of Patent: January 26, 2021Inventors: Young-In Hwang, Sung Ho Kim, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Jung-Mi Choi
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Patent number: 10885847Abstract: An organic light emitting diode display includes a flexible substrate, a semiconductor layer on the flexible substrate, and an overlapping layer. The transistor includes a driving transistor, a second transistor to transmit a data voltage transmitted through the data line to an input electrode of the driving transistor, and a third transistor including a gate electrode connected to the scan line, a first electrode connected to an output electrode of the driving transistor, and a second electrode connected to a gate electrode of the driving transistor. The third transistor includes two transistors connected in series to each other and connected to each other at a third node, the third node is formed in the semiconductor layer, an additional capacitance portion is formed in the semiconductor layer in the vicinity of the third node, and the overlapping layer overlaps the third node and the capacitance portion of the semiconductor layer.Type: GrantFiled: February 7, 2019Date of Patent: January 5, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong Min Wang, Yong Ho Yang, Sung Ho Kim, Young-In Hwang
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Publication number: 20200319520Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a plurality of pixels arranged in a matrix on the substrate where each pixel includes a switching element, a plurality of gate lines that are connected to the switching elements and extend in a row direction, and a gate driver that is connected to the gate lines and is formed on the substrate as an integrated circuit. In the liquid crystal display, the gate driver includes a first region and a second region that is not aligned with the first region.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Inventors: Yong-Ho YANG, Joo-Sun YOON, Ki-Hun JEONG
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Patent number: 10690982Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a plurality of pixels arranged in a matrix on the substrate where each pixel includes a switching element, a plurality of gate lines that are connected to the switching elements and extend in a row direction, and a gate driver that is connected to the gate lines and is formed on the substrate as an integrated circuit. In the liquid crystal display, the gate driver includes a first region and a second region that is not aligned with the first region.Type: GrantFiled: April 15, 2019Date of Patent: June 23, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yong-Ho Yang, Joo-Sun Yoon, Ki-Hun Jeong
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Publication number: 20200005708Abstract: An organic light emitting diode display includes a driving transistor and a compensation transistor. The driving transistor includes a first gate electrode disposed on a substrate, a polycrystalline semiconductor layer disposed on the first gate electrode of the driving transistor and including a first electrode, a second electrode, and a channel, and a second gate electrode disposed on the polycrystalline semiconductor layer of the driving transistor. The compensation transistor includes a polycrystalline semiconductor layer including a first electrode, a second electrode, and a channel, and a gate electrode disposed on the polycrystalline semiconductor layer of the compensation transistor.Type: ApplicationFiled: March 18, 2019Publication date: January 2, 2020Inventors: YOUNG-IN HWANG, Sung Ho Kim, Yong Ho Yang, Seong Min Wang
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Publication number: 20190304373Abstract: An organic light emitting diode display includes a flexible substrate, a semiconductor layer on the flexible substrate, and an overlapping layer. The transistor includes a driving transistor, a second transistor to transmit a data voltage transmitted through the data line to an input electrode of the driving transistor, and a third transistor including a gate electrode connected to the scan line, a first electrode connected to an output electrode of the driving transistor, and a second electrode connected to a gate electrode of the driving transistor. The third transistor includes two transistors connected in series to each other and connected to each other at a third node, the third node is formed in the semiconductor layer, an additional capacitance portion is formed in the semiconductor layer in the vicinity of the third node, and the overlapping layer overlaps the third node and the capacitance portion of the semiconductor layer.Type: ApplicationFiled: February 7, 2019Publication date: October 3, 2019Inventors: Seong Min WANG, Yong Ho YANG, Sung Ho KIM, Young-In HWANG
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Publication number: 20190304374Abstract: A display device may include a first pixel coupled to an emission control line, and an emission control stage for selectively coupling the emission control line to a first or second supply voltage line. The emission control stage may include: a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node; a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node; and a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode.Type: ApplicationFiled: February 19, 2019Publication date: October 3, 2019Inventors: Seong Min WANG, Young In HWANG, Jin Woo PARK, Yong Ho YANG
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Publication number: 20190302504Abstract: A display device includes a display panel having a first side including a display area configured to emit light and a second side opposite the first side, an auxiliary layer disposed on the second side of the display area and including an opening, a sensor overlapping the opening, and an adhesive layer connected between the sensor and the auxiliary layer.Type: ApplicationFiled: November 29, 2018Publication date: October 3, 2019Inventors: Seong Min WANG, Beohm Rock CHOI, Yong Ho YANG
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Publication number: 20190305062Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.Type: ApplicationFiled: January 18, 2019Publication date: October 3, 2019Inventors: Seong Min WANG, Young-In HWANG, Yong Ho YANG, Yong Su LEE, Jae Seob LEE, Gyoo Chul JO
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Publication number: 20190279567Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.Type: ApplicationFiled: February 25, 2019Publication date: September 12, 2019Inventors: Young-In Hwang, Sung Ho Kim, Eung Taek Kim, Yong Ho Yang, Seong Min Wang, Jung-Mi Choi
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Publication number: 20190243202Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a plurality of pixels arranged in a matrix on the substrate where each pixel includes a switching element, a plurality of gate lines that are connected to the switching elements and extend in a row direction, and a gate driver that is connected to the gate lines and is formed on the substrate as an integrated circuit. In the liquid crystal display, the gate driver includes a first region and a second region that is not aligned with the first region.Type: ApplicationFiled: April 15, 2019Publication date: August 8, 2019Inventors: Yong-Ho YANG, Joo-Sun YOON, Ki-Hun JEONG
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Patent number: 10297617Abstract: A display device includes a scan line extending primarily in a first direction, disposed on a substrate, and transmitting a scan signal, a data line extending primarily in a second direction intersecting the first direction and transmitting a data signal, a driving voltage line extending primarily in the second direction and transmitting a driving voltage, a plurality of transistors including first and second transistors, wherein the second transistor is connected to the scan line and the data line, and the first transistor is connected to the second transistor, a light emitting element connected to the plurality of transistors, and a storage capacitor disposed between the substrate and an active pattern of the first transistor, the storage capacitor including a first electrode disposed on the substrate and a second electrode at least partially overlapping the first electrode. A first insulating layer is disposed between the first and second electrodes.Type: GrantFiled: April 19, 2017Date of Patent: May 21, 2019Assignee: SAMUNG DISPLAY CO., LTD.Inventors: Yong Ho Yang, Hui Won Yang, Nak Cho Choi, Hwang Sup Shin, Jun Hee Lee
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Patent number: 10261377Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a plurality of pixels arranged in a matrix on the substrate where each pixel includes a switching element, a plurality of gate lines that are connected to the switching elements and extend in a row direction, and a gate driver that is connected to the gate lines and is formed on the substrate as an integrated circuit. In the liquid crystal display, the gate driver includes a first region and a second region that is not aligned with the first region.Type: GrantFiled: February 15, 2017Date of Patent: April 16, 2019Assignee: Samsung Display Co., Ltd.Inventors: Yong-Ho Yang, Joo-Sun Yoon, Ki-Hun Jeong
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Patent number: 10074710Abstract: An organic light emitting diode display includes a substrate, a plurality of pixels disposed on the substrate, and a plurality of transmitting windows configured to transmit light therethrough. The plurality of transmitting windows is spaced apart from the plurality of pixels. Each of the plurality of pixels includes a transistor and a capacitor. The transistor includes a light-blocking electrode disposed on the substrate and a plurality of electrode members disposed at different layers on the light-blocking electrode. The capacitor includes a first capacitor electrode disposed on a same layer as the light-blocking electrode, and a second capacitor electrode disposed on a same layer as a first one of the plurality of electrode members to overlap the first capacitor electrode.Type: GrantFiled: April 18, 2017Date of Patent: September 11, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Kohei Ebisuno, Ae Shin, Yong Ho Yang, Jun Hee Lee, Nak Cho Choi