Patents by Inventor Woong-Hee Jeong
Woong-Hee Jeong 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: 20220384684Abstract: A display device includes a base layer; a via layer over the base layer, the via layer having a concave groove; a light emitting element in the groove; a first electrode over the via layer; a second electrode over the via layer and spaced from the first electrode; and an anchor over the light emitting element within the groove. A first conductor is in the groove and covers an end of the light emitting element.Type: ApplicationFiled: March 11, 2022Publication date: December 1, 2022Inventors: Jong Chan LEE, Hyun KIM, Jeong Su PARK, Sung Jin LEE, Hyun Wook LEE, Woong Hee JEONG, Jung Eun HONG
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Patent number: 11476316Abstract: A pixel including: a light emitting element; a first transistor between a first node and the light emitting element to control current flowing from a first driving power source through the light emitting element to a second driving power source; a second transistor between a data line and the first transistor, and tamed on by a first scan signal; a third transistor between the first transistor and first node, and turned on by the first scan signal; and a fourth transistor between an initialization power line and the first node, and turned on by a second scan signal, wherein the fourth transistor is a tunneling field effect transistor including a source and drain area that are spaced apart from each other and have opposite conductivities, a channel area between the source area and drain area, and a gate electrode on the channel area with a gate insulating layer therebetween.Type: GrantFiled: April 30, 2019Date of Patent: October 18, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Hoon Yang, Ki Bum Kim, Jong Chan Lee, Woong Hee Jeong
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Patent number: 11469274Abstract: A display device includes light transmitting areas including a first light transmitting area and light emitting areas around the light transmitting areas and including a first light emitting area disposed around the first light transmitting area, wherein the first light emitting area includes a first-first light emitting area adjacent to a first portion of each of the light transmitting areas, a first-second light emitting area adjacent to a second portion of each of the light transmitting areas, a first-third light emitting area adjacent to a third portion of each of the light transmitting areas, and a first-fourth light emitting area disposed adjacent to a fourth portion of each of the light transmitting areas. The first-first to first-fourth light emitting areas each include at least one of first to third light emitting portions to emit light of first to third colors, respectively.Type: GrantFiled: July 13, 2020Date of Patent: October 11, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woong Hee Jeong, Ki Bum Kim, Jin Yeong Kim, Hyang A Park, Tae Hoon Yang, Jong Chan Lee
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Publication number: 20220181521Abstract: A display device includes a first electrode disposed on a substrate, a first insulating film disposed on the first electrode and having a first opening formed, a second insulating film disposed on the first insulating film and having a second opening, and a contact electrode electrically contacting at least a portion of the first electrode through the first opening and the second opening, wherein a side surface of the first insulating film defines the first opening, and the second insulating film overlaps the side surface of the first insulating film such that the contact electrode and the first insulating film are not in contact with each other.Type: ApplicationFiled: August 31, 2021Publication date: June 9, 2022Applicant: Samsung Display Co., LTD.Inventors: Seung Jin CHU, Je Min LEE, Hyun KIM, Myeong Hun SONG, Jong Chan LEE, Woong Hee JEONG
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Patent number: 11276352Abstract: A display device includes: a plurality of pixels, each of which is connected to a corresponding one of a plurality of scan lines, and a scan driver including a plurality of stages, each of which supplies a scan signal to a corresponding one of the scan lines, each of the stages includes: a node controller which supplies a second output signal of a previous stage to a first node based on an input signal of a first clock terminal or a first output signal of the previous stage, a first inverter connected between the first node and a second node, a buffer which supplies a voltage of the second node to a first output terminal based on an input signal of a second clock terminal, and a second inverter connected between the first output terminal and a second output terminal.Type: GrantFiled: October 20, 2020Date of Patent: March 15, 2022Assignees: SAMSUNG DISPLAY CO., LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORPInventors: Tae Hoon Yang, Joon Ho Lee, Kee Chan Park, Ki Bum Kim, Hyang A Park, Jong Chan Lee, Woong Hee Jeong
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Publication number: 20220069167Abstract: A display device includes a substrate including first areas and second areas, active layers disposed on the substrate in the second areas, a first conductive layer including first gate electrodes, a first interlayer insulating layer disposed on the first conductive layer and the substrate, a second conductive layer including first and second electrodes which are disposed in each of the first areas to be spaced apart from each other, a second interlayer insulating layer disposed on the second conductive layer and the first interlayer insulating layer, a third conductive layer including source electrodes and drain electrodes which are disposed on the second interlayer insulating layer in the second areas, a via layer disposed on the third conductive layer in the second areas and exposing the first areas and light-emitting elements disposed on the second interlayer insulating layer in each of the first areas.Type: ApplicationFiled: August 31, 2021Publication date: March 3, 2022Applicant: Samsung Display Co., LTD.Inventors: Jong Chan LEE, Tae Hee LEE, Woong Hee JEONG
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Publication number: 20220020332Abstract: A scan driver includes stage circuits, wherein each of the stage circuits includes a first transistor, wherein a first electrode thereof is coupled to a first node, a second electrode thereof is coupled to an input carry line, and a gate electrode thereof is coupled to a first clock line; and a capacitor, wherein a first electrode thereof is coupled to the first node and a second electrode thereof is coupled to a second node, wherein the second node is coupled to an output carry line, and the second node is selectively coupled to one of a first power voltage line and a second power voltage line.Type: ApplicationFiled: September 26, 2019Publication date: January 20, 2022Inventors: Tae Hoon YANG, Joon Ho LEE, Kee Chan PARK, Ki Bum KIM, Jong Chan LEE, Woong Hee JEONG
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Publication number: 20210391403Abstract: A pixel including: a light emitting element; a first transistor between a first node and the light emitting element to control current flowing from a first driving power source through the light emitting element to a second driving power source; a second transistor between a data line and the first transistor, and tamed on by a first scan signal; a third transistor between the first transistor and first node, and turned on by the first scan signal; and a fourth transistor between an initialization power line and the first node, and turned on by a second scan signal, wherein the fourth transistor is a tunneling field effect transistor including a source and drain area that are spaced apart from each other and have opposite conductivities, a channel area between the source area and drain area, and a gate electrode on the channel area with a gate insulating layer therebetween.Type: ApplicationFiled: April 30, 2019Publication date: December 16, 2021Inventors: Tae Hoon YANG, Ki Bum KIM, Jong Chan LEE, Woong Hee JEONG
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Publication number: 20210384178Abstract: A display device and a method of fabricating a display device are provided. The display device includes a substrate comprising a contact area and a line area, a first electrode that extends in a first direction on the substrate, a first electrode pattern that extends in the first direction and is spaced apart from the first electrode on the substrate, a second electrode that extends in the first direction and is between the first electrode and the first electrode pattern on the substrate, a second electrode pattern that extends in the first direction and is between the first electrode and the second electrode on the substrate, and a first light-emitting element between the first electrode and the second electrode pattern in the contact area.Type: ApplicationFiled: March 16, 2021Publication date: December 9, 2021Inventors: Jong Chan LEE, Sang Jun PARK, Jeong Hyun LEE, Woong Hee JEONG, Kwang Taek HONG
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Publication number: 20210367109Abstract: A display device includes a light emitting element including a first semiconductor layer; a second semiconductor layer; and a third semiconductor layer disposed between the first semiconductor layer and the second semiconductor layer; a first contact electrode electrically connected to the first semiconductor layer of the light emitting element; a second contact electrode electrically connected to the second semiconductor layer of the light emitting element; and a third contact electrode disposed between the first contact electrode and the second contact electrode and electrically connected to the third semiconductor layer of the light emitting element, wherein the first semiconductor layer of the light emitting element and the second semiconductor layer of the light emitting element are doped with a first dopant having a first polarity, and the third semiconductor layer of the light emitting element is doped with a second dopant having a second polarity different from the first polarity.Type: ApplicationFiled: December 14, 2020Publication date: November 25, 2021Applicant: Samsung Display Co., LTD.Inventors: Myeong Hun SONG, Sung Geun BAE, Jeong Hyun LEE, Jong Chan LEE, Tae Hee LEE, Woong Hee JEONG
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Publication number: 20210336108Abstract: A display device includes a first electrode disposed on a substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, at least one light-emitting element extending in a direction, disposed between the first electrode and the second electrode, and electrically connected to the first electrode and the second electrode, and an insulating pattern layer disposed on the first electrode and the second electrode, the insulating pattern layer including a fixer disposed on at least part of the at least one light-emitting element, and a barrier surrounding the at least one light-emitting element.Type: ApplicationFiled: March 9, 2021Publication date: October 28, 2021Applicant: Samsung Display Co., LTD.Inventors: Hyun Wook LEE, Tae Hee LEE, Jong Chan LEE, Woong Hee JEONG
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Patent number: 11132946Abstract: An emission signal driver comprises stages connected to emission lines. Each of the stages includes a node controller which supplies a start signal or a carry signal, which is input to a start terminal, to a first node in response to a clock signal input to a clock terminal, a first inverter connected between the first node and a second node, and a second inverter connected between the second node and an output terminal.Type: GrantFiled: May 18, 2020Date of Patent: September 28, 2021Assignees: SAMSUNG DISPLAY CO., LTD., KONKUK UNIVERSITY INDUSTRIAL COOPERATION CORPInventors: Tae Hoon Yang, Joon Ho Lee, Kee Chan Park, Ki Bum Kim, Jong Chan Lee, Woong Hee Jeong
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Publication number: 20210118375Abstract: A display device includes: a plurality of pixels, each of which is connected to a corresponding one of a plurality of scan lines, and a scan driver including a plurality of stages, each of which supplies a scan signal to a corresponding one of the scan lines, each of the stages includes: a node controller which supplies a second output signal of a previous stage to a first node based on an input signal of a first clock terminal or a first output signal of the previous stage, a first inverter connected between the first node and a second node, a buffer which supplies a voltage of the second node to a first output terminal based on an input signal of a second clock terminal, and a second inverter connected between the first output terminal and a second output terminal.Type: ApplicationFiled: October 20, 2020Publication date: April 22, 2021Inventors: Tae Hoon YANG, Joon Ho LEE, Kee Chan PARK, Ki Bum KIM, Hyang A. PARK, Jong Chan LEE, Woong Hee JEONG
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Patent number: 10944011Abstract: A display apparatus includes a base substrate, an active pattern on the base substrate including a source region, a drain region, and a channel region that is doped between the source region and the drain region, the channel region including polycrystalline silicon, and a gate electrode overlapping the channel region of the active pattern. The channel region may include a lower portion, an upper portion, and an intermediate portion between the upper portion and the lower portion, and a dopant density of the lower portion may be 80% or more of a dopant density of the upper portion.Type: GrantFiled: October 7, 2019Date of Patent: March 9, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Hoon Yang, Kibum Kim, Jongjun Baek, Byung Soo So, Jong chan Lee, Woong Hee Jeong, Jaewoo Jeong
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Patent number: 10909929Abstract: A scan driver includes stage circuits, each including: a first circuit including a control terminal (CT) connected to a first node (N1), and connecting/disconnecting a previous scan line of a previous stage circuit to a second node (N2) based on a control signal (CS); a second circuit including a CT connected to a clock signal line, and connecting one of a first power voltage line (FPVL) and a second power voltage line (SPVL) to the N1 based on a CS; a third circuit including a CT connected to the N2, and connecting one of the N1 and the SPVL to a third node (N3) based on a CS; a fourth circuit including a CT connected to the N3, and connecting one of the FPVL and the SPVL to a current scan line based on a CS; and a first capacitor connecting the CT of the third circuit and the SPVL.Type: GrantFiled: December 5, 2018Date of Patent: February 2, 2021Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Yang, Ki Bum Kim, Jong Chan Lee, Woong Hee Jeong
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Publication number: 20210028244Abstract: A display device includes light transmitting areas including a first light transmitting area and light emitting areas around the light transmitting areas and including a first light emitting area disposed around the first light transmitting area, wherein the first light emitting area includes a first-first light emitting area adjacent to a first portion of each of the light transmitting areas, a first-second light emitting area adjacent to a second portion of each of the light transmitting areas, a first-third light emitting area adjacent to a third portion of each of the light transmitting areas, and a first-fourth light emitting area disposed adjacent to a fourth portion of each of the light transmitting areas. The first-first to first-fourth light emitting areas each include at least one of first to third light emitting portions to emit light of first to third colors, respectively.Type: ApplicationFiled: July 13, 2020Publication date: January 28, 2021Applicant: Samsung Display Co., LTD.Inventors: Woong Hee JEONG, Ki Bum KIM, Jin Yeong KIM, Hyang A PARK, Tae Hoon YANG, Jong Chan LEE
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Publication number: 20210012708Abstract: An emission signal driver comprises stages connected to emission lines. Each of the stages includes a node controller which supplies a start signal or a carry signal, which is input to a start terminal, to a first node in response to a clock signal input to a clock terminal, a first inverter connected between the first node and a second node, and a second inverter connected between the second node and an output terminal.Type: ApplicationFiled: May 18, 2020Publication date: January 14, 2021Inventors: Tae Hoon YANG, Joon Ho LEE, Kee Chan PARK, Ki Bum KIM, Jong Chan LEE, Woong Hee JEONG
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Patent number: 10777137Abstract: A pixel including a light emitting element, a first transistor connected between a first node and the light emitting element to control current flowing from a first power supply to a second power supply, a second transistor connected between a data line and the first transistor to be turned on by an ith first scan signal, a third transistor including a P-type TFT connected between the first transistor and the first node to be turned on by the ith first scan signal and, a fourth transistor including an N-type TFT connected between the first node and an initialization power supply line to be turned on by an i?1th scan signal, and a first connection line connected between the third and fourth transistors to electrically connect semiconductor patterns thereof, in which the first connection line is disposed on the third and fourth transistors and contacts the semiconductor patterns thereof.Type: GrantFiled: April 1, 2019Date of Patent: September 15, 2020Assignee: Samsung Display Co., Ltd.Inventors: Tae Hoon Yang, Ki Bum Kim, Jong Chan Lee, Woong Hee Jeong
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Patent number: 10734526Abstract: A display device includes: a flexible substrate; a semiconductor layer on the flexible substrate; a passivation layer on the semiconductor layer; an alignment member layer on the passivation, the alignment member layer including a first alignment member and a second alignment member in a same layer; a first insulation layer on the alignment member layer and the passivation layer; a gate electrode on the first insulation layer; a second insulation layer on the first insulation layer and the gate electrode; and a source electrode and a drain electrode on the second insulation layer and spaced apart from each other, wherein the first alignment member and the second alignment member are spaced apart from each other with the gate electrode therebetween.Type: GrantFiled: October 10, 2017Date of Patent: August 4, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jong Chan Lee, Kyoung Won Lee, Woong Hee Jeong, Yong Su Lee
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Patent number: 10714556Abstract: A transistor substrate may include a base substrate, and a switching transistor and a driving transistor provided on the base substrate. The driving transistor includes: an active pattern provided on the base substrate and including a source region, a drain region spaced apart from the source region, and a channel region provided between the source region and the drain region; a gate electrode at least partially overlapping the active pattern; a gate insulating film provided between the active pattern and the gate electrode; a source electrode insulated from the gate electrode and connected to the source region; a drain electrode insulated from the gate electrode and connected to the drain region; and at least one dummy hole adjacent to the channel region.Type: GrantFiled: March 8, 2019Date of Patent: July 14, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woong Hee Jeong, Tae Hoon Yang, Jong Chan Lee