Patents by Inventor Chang Ho YI
Chang Ho YI 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).
-
Publication number: 20230397477Abstract: A display device includes a semiconductor layer on an opposite side to a light-blocking layer, the semiconductor layer including an active layer overlapping the light-blocking layer, a first gate insulator on an opposite side to a buffer film with the active layer therebetween, and a first gate electrode on an opposite side to the active layer with the first gate insulator therebetween, a side surface of the first gate insulator includes a first inclined portion contacting a first surface of the semiconductor layer, and a second inclined portion contacting the first inclined portion and the first gate electrode, and a first angle between the first surface of the semiconductor layer and the first inclined portion is less than a second angle between the first surface of the semiconductor layer and the second inclined portion.Type: ApplicationFiled: March 8, 2023Publication date: December 7, 2023Applicant: Samsung Display Co., LTD.Inventors: Chang Ho YI, Hyun Min CHO, Jung Woo HA, Tetsuhiro TANAKA, Seok Je SEONG
-
Patent number: 11730024Abstract: A display device may include a first pixel column disposed on a substrate, a second pixel column adjacent to the first pixel column, a third pixel column adjacent to the second pixel column, and a first wiring, a second wiring, and a third wiring respectively and electrically connected to the first pixel column, the second pixel column, and the third pixel column. Each of the first wiring, the second wiring, and the third wiring may include a first line, a second line electrically connected to the first line, the first line and the second line being disposed on different layers, and a third line electrically connected to the second line, the first line, the second line, and the third line being disposed on different layers.Type: GrantFiled: September 24, 2020Date of Patent: August 15, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang Hoon Oh, Seung Gyu Tae, Hyun Woo Kang, Dong Hyeok Lee, Chang Ho Yi
-
Patent number: 11211407Abstract: A display device includes a polycrystalline semiconductor including a channel, a first electrode, and a second electrode of a driving transistor, a first gate insulating layer, a gate electrode of a driving transistor, a first electrode of a boost capacitor, a second gate insulating layer, a first interlayer insulating layer, an oxide semiconductor including a channel, a first electrode, and a second electrode of a second transistor, a channel, a first electrode, and a second electrode of a third transistor, and a second electrode of a boost capacitor, a third gate insulating layer disposed on the oxide semiconductor, a gate electrode of the second transistor overlapping the channel of the second transistor, a gate electrode of the third transistor overlapping the channel of the third transistor, and a second interlayer insulating layer disposed on the gate electrode of the second transistor and the gate electrode of the third transistor.Type: GrantFiled: August 6, 2020Date of Patent: December 28, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Tetsuhiro Tanaka, Yeong-Gyu Kim, Ki Seong Seo, Seung Hyun Lee, Chang Ho Yi
-
Publication number: 20210265445Abstract: A display device may include a first pixel column disposed on a substrate, a second pixel column adjacent to the first pixel column, a third pixel column adjacent to the second pixel column, and a first wiring, a second wiring, and a third wiring respectively and electrically connected to the first pixel column, the second pixel column, and the third pixel column. Each of the first wiring, the second wiring, and the third wiring may include a first line, a second line electrically connected to the first line, the first line and the second line being disposed on different layers, and a third line electrically connected to the second line, the first line, the second line, and the third line being disposed on different layers.Type: ApplicationFiled: September 24, 2020Publication date: August 26, 2021Applicant: Samsung Display Co., LTD.Inventors: Sang Hoon OH, Seung Gyu TAE, Hyun Woo KANG, Dong Hyeok LEE, Chang Ho YI
-
Publication number: 20210210518Abstract: A display device includes a polycrystalline semiconductor including a channel, a first electrode, and a second electrode of a driving transistor, a first gate insulating layer, a gate electrode of a driving transistor, a first electrode of a boost capacitor, a second gate insulating layer, a first interlayer insulating layer, an oxide semiconductor including a channel, a first electrode, and a second electrode of a second transistor, a channel, a first electrode, and a second electrode of a third transistor, and a second electrode of a boost capacitor, a third gate insulating layer disposed on the oxide semiconductor, a gate electrode of the second transistor overlapping the channel of the second transistor, a gate electrode of the third transistor overlapping the channel of the third transistor, and a second interlayer insulating layer disposed on the gate electrode of the second transistor and the gate electrode of the third transistor.Type: ApplicationFiled: August 6, 2020Publication date: July 8, 2021Applicant: Samsung Display Co., LTD.Inventors: Tetsuhiro TANAKA, Yeong-Gyu KIM, Ki Seong SEO, Seung Hyun LEE, Chang Ho YI
-
Patent number: 9581407Abstract: Provided is a compound bow comprising: a bow main body; upper and lower pulley assemblies; a bowstring; and first and second cam cables, wherein at least one of the first and second cam cables is coupled to the fixing projection that moves along as a cam module moves, is wound on a cam cable winding portion via a compensation projection, and then extends toward the other side pulley assembly, and a front portion of the cam module is in contact with the one cam cable and thus the one cam cable is bent when the cam module is moved, to thus release the one cam cable from the cam cable winding portion via the compensating projection from the fixing projection that the one cam cable is coupled, to thereby maintain constant tension of the cam cable and keep the power of the bow.Type: GrantFiled: February 23, 2016Date of Patent: February 28, 2017Assignee: WIN & WIN Co., Ltd.Inventors: Chang Ho Yi, Dong Won Park
-
Patent number: 9440701Abstract: Disclosed is a frame body for a bicycle which is able to provide higher strength and reduce the weight of the body frame in such a way to use a carbon material even when the outer diameters of a top tube and a bottom tube are thinner same as the thickness of the tubes forming a classical type body frame. In the body frame for a bicycle, at least one tube among the top tube, the bottom tube and the seat tube is made of a carbon material outer tube of a pipe shape the diameter of which is same from one end to the other end, and an inner tube made of a carbon material in a tubular shape and having a cross section area smaller than the cross section area of the outer tube is fixedly installed in the inside of a predetermined section of the outer tube.Type: GrantFiled: May 21, 2015Date of Patent: September 13, 2016Assignee: WIN & WIN CO., LTD.Inventors: Dong Won Park, Ung Je Choi, Chang Ho Yi
-
Publication number: 20160252319Abstract: Provided is a compound bow including: first and second cam cables between upper and lower pulley assemblies, wherein the lower cable of the first cam cable comprises: a one-side cable portion and the other-side cable portion on both sides of the pulley, in which either end of the lower cable is coupled to a fixing projection formed at either side of the pulley, and the one-side cable portion and the other-side cable portion of the lower cable are supported by a spacing member so as to maintain a constant interval, to thus make the one-side cable portion and the other-side cable portion of the lower cable wound on the respective cams formed at both sides of the pulley, while maintaining the one-side cable portion and the other-side cable portion of the lower cable to have the constant interval by the spacing member, as a bowstring is pulled.Type: ApplicationFiled: February 29, 2016Publication date: September 1, 2016Inventors: Chang Ho YI, Dong Won PARK
-
Publication number: 20160245611Abstract: Provided is a compound bow comprising: a bow main body; upper and lower pulley assemblies; a bowstring; and first and second cam cables, wherein at least one of the first and second cam cables is coupled to the fixing projection that moves along as a cam module moves, is wound on a cam cable winding portion via a compensation projection, and then extends toward the other side pulley assembly, and a front portion of the cam module is in contact with the one cam cable and thus the one cam cable is bent when the cam module is moved, to thus release the one cam cable from the cam cable winding portion via the compensating projection from the fixing projection that the one cam cable is coupled, to thereby maintain constant tension of the cam cable and keep the power of the bow.Type: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Inventors: Chang Ho YI, Dong Won PARK
-
Patent number: 9335114Abstract: Provided is a self-tunable compound bow including: a bow main body including a pair of limbs that are respectively coupled to both ends of a handle; upper and lower pulley assemblies that are respectively coupled to the rear end of each limb; a bowstring; and first and second cam cables that are wound around a cam of each of the upper and lower pulley assemblies as the bowstring is pulled. A contact pin is formed in one of the pulley assemblies, in which the contact pin is in contact with one limb when the bowstring is pulled, and an indicator is formed in the other of the pulley assemblies, in which the indicator is in contact with the other limb and moves when the bowstring is pulled in a guide hole formed in the pulley of the other of the pulley assemblies.Type: GrantFiled: January 14, 2015Date of Patent: May 10, 2016Assignee: Win & Win Co., Ltd.Inventors: Chang Ho Yi, Dong Won Park
-
Patent number: 9261321Abstract: Provided is a self-tunable compound bow including: a bow main body including a pair of limbs that are respectively coupled to both ends of a handle; upper and lower pulley assemblies that are respectively coupled to the rear end of each limb; a bowstring; and first and second cam cables that are wound around a cam of each of the upper and lower pulley assemblies as the bowstring is pulled. A contact pin is formed in one of the pulley assemblies, in which the contact pin is in contact with the first cam cable when the bowstring is pulled, and an indicator is formed in the other of the pulley assemblies, in which the indicator is in contact with the second cam cable and moves when the bowstring is pulled in a guide hole formed in the pulley of the other of the pulley assemblies.Type: GrantFiled: August 26, 2014Date of Patent: February 16, 2016Assignee: WIN & WIN Co., Ltd.Inventors: Chang Ho Yi, Dong Won Park
-
Publication number: 20150344096Abstract: Disclosed is a frame body for a bicycle which is able to provide higher strength and reduce the weight of the body frame in such a way to use a carbon material even when the outer diameters of a top tube and a bottom tube are thinner same as the thickness of the tubes forming a classical type body frame. In the body frame for a bicycle, at least one tube among the top tube, the bottom tube and the seat tube is made of a carbon material outer tube of a pipe shape the diameter of which is same from one end to the other end, and an inner tube made of a carbon material in a tubular shape and having a cross section area smaller than the cross section area of the outer tube is fixedly installed in the inside of a predetermined section of the outer tube.Type: ApplicationFiled: May 21, 2015Publication date: December 3, 2015Inventors: Dong Won PARK, Ung Je CHOI, Chang Ho YI
-
Patent number: 9140515Abstract: A compound bow has an improved vibration damping function. The compound bow includes a bow main body including a handle and a pair of limbs; upper and lower pulley assemblies each including a pulley and a cam; a bowstring; first and second cam cables that are wound around the cam of each of the upper and lower pulley assemblies as the bowstring is pulled; a bowstring support bar whose one end is coupled to the handle and whose other end is coupled to a cushioning member that contacts the bowstring; and a first cam cable anti-vibration bar including a coupling bar coupled to the handle, and an anti-vibration member that is coupled to the rear end of the coupling bar and whose rear surface contacts one of the first and second cam cables when the bowstring is released to thus return to an original position.Type: GrantFiled: January 5, 2015Date of Patent: September 22, 2015Assignee: WIN & WIN Co., Ltd.Inventors: Chang Ho Yi, Dong Won Park, Ki Tae Han
-
Patent number: 9103622Abstract: Provided is bow including: a handle; a pair of wings; and a bow string, wherein a coupling pin is formed in a rear side of one end of each wing coupled to the handle, and a fitting groove is formed at one end of each wing, wherein a coupling groove into which the coupling pin of each wing is coupled is formed at one end of the handle, and a fixing pin that is inserted into the fitting groove of each wing is formed at the one end of the handle, and wherein a buffer pin member that is configured to include a pin member that is inserted into an insertion hole formed in each wing and coupled to the handle and a first cushioning member that is formed between a front end of the pin member and each wing, is provided at each end of the handle.Type: GrantFiled: June 4, 2014Date of Patent: August 11, 2015Assignee: WIN & WIN Co., Ltd.Inventors: Dong Won Park, Jae Seon You, Chang Ho Yi
-
Publication number: 20150192381Abstract: A compound bow has an improved vibration damping function. The compound bow includes a bow main body including a handle and a pair of limbs; upper and lower pulley assemblies each including a pulley and a cam; a bowstring; first and second cam cables that are wound around the cam of each of the upper and lower pulley assemblies as the bowstring is pulled; a bowstring support bar whose one end is coupled to the handle and whose other end is coupled to a cushioning member that contacts the bowstring; and a first cam cable anti-vibration bar including a coupling bar coupled to the handle, and an anti-vibration member that is coupled to the rear end of the coupling bar and whose rear surface contacts one of the first and second cam cables when the bowstring is released to thus return to an original position.Type: ApplicationFiled: January 5, 2015Publication date: July 9, 2015Inventors: Chang Ho YI, Dong Won PARK, Ki Tae HAN
-
Publication number: 20150153132Abstract: Provided is a self-tunable compound bow including: a bow main body including a pair of limbs that are respectively coupled to both ends of a handle; upper and lower pulley assemblies that are respectively coupled to the rear end of each limb; a bowstring; and first and second cam cables that are wound around a cam of each of the upper and lower pulley assemblies as the bowstring is pulled. A contact pin is formed in one of the pulley assemblies, in which the contact pin is in contact with one limb when the bowstring is pulled, and an indicator is formed in the other of the pulley assemblies, in which the indicator is in contact with the other limb and moves when the bowstring is pulled in a guide hole formed in the pulley of the other of the pulley assemblies.Type: ApplicationFiled: January 14, 2015Publication date: June 4, 2015Inventors: Chang Ho YI, Dong Won PARK
-
Publication number: 20150083099Abstract: Provided is a self-tunable compound bow including: a bow main body including a pair of limbs that are respectively coupled to both ends of a handle; upper and lower pulley assemblies that are respectively coupled to the rear end of each limb; a bowstring; and first and second cam cables that are wound around a cam of each of the upper and lower pulley assemblies as the bowstring is pulled. A contact pin is formed in one of the pulley assemblies, in which the contact pin is in contact with the first cam cable when the bowstring is pulled, and an indicator is formed in the other of the pulley assemblies, in which the indicator is in contact with the second cam cable and moves when the bowstring is pulled in a guide hole formed in the pulley of the other of the pulley assemblies.Type: ApplicationFiled: August 26, 2014Publication date: March 26, 2015Inventors: Chang Ho YI, Dong Won PARK
-
Publication number: 20150053191Abstract: A compound bow includes a bow main body including a handle and a pair of limbs. Upper and lower pulleys are coupled to the rear end of each limb. A bowstring is provided and a cam that is coupled to each pulley. A rotating wheel is coupled with the rotating shaft of the pulley. Cam cables are wound around the cams, in which one end of each cam cable is coupled to one pulley and the other end thereof is coupled to the other pulley. A cam cable guide member has one end rotatably coupled to the rotating shaft of the pulley, and at the other end of which a support member for supporting the cam cable is formed in order to make a portion of the cam cable extended from the rotating wheel guided in parallel with the pulley.Type: ApplicationFiled: August 21, 2014Publication date: February 26, 2015Inventors: Chang Ho YI, Dong Won PARK
-
Publication number: 20140360479Abstract: Provided is bow including: a handle; a pair of wings; and a bow string, wherein a coupling pin is formed in a rear side of one end of each wing coupled to the handle, and a fitting groove is formed at one end of each wing, wherein a coupling groove into which the coupling pin of each wing is coupled is formed at one end of the handle, and a fixing pin that is inserted into the fitting groove of each wing is formed at the one end of the handle, and wherein a buffer pin member that is configured to include a pin member that is inserted into an insertion hole formed in each wing and coupled to the handle and a first cushioning member that is formed between a front end of the pin member and each wing, is provided at each end of the handle.Type: ApplicationFiled: June 4, 2014Publication date: December 11, 2014Inventors: Dong Won PARK, Jae Seon YOU, Chang Ho YI