Patents by Inventor Young-gon Hong
Young-gon Hong 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: 7466070Abstract: An electron gun includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, each of said plurality of focusing electrodes being perforated by a plurality of beam passage apertures and an anode electrode, wherein a pitch between ones of said plurality of beam passage apertures of a one of said plurality of focusing electrodes arranged closest to the second electrode is smaller than a pitch between ones of said plurality of the beam passage apertures of a remaining of said plurality of focusing electrodes.Type: GrantFiled: March 10, 2006Date of Patent: December 16, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Young-Gon Hong, Yeoung-Uk Nam, Kyou-Bong Lee
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Patent number: 7362044Abstract: A CRT includes an electron gun that includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, an anode electrode and a subsidiary electrode arranged between the second electrode and a one of said plurality of focusing electrode adjacent to the second electrode. The subsidiary electrode is adapted to dynamically control an imaginary crossover point ofelectron beams emanating from the electron gun corresponding to landing locations ofthe electron beams on a phosphor screen of a panel in response to a voltage applied thereto.Type: GrantFiled: March 10, 2006Date of Patent: April 22, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Young-Gon Hong, Nozomu Arimoto, Hoo-Deuk Kim, Min-Cheol Bae, Kue-Hong Lee
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Patent number: 7355332Abstract: An image display device includes a cathode ray tube. The cathode ray tube includes a panel with an inner phosphor screen, and a funnel connected to the panel with a cone portion mounting a deflection unit on the outer circumference thereof. A neck is connected to the funnel while mounting an electron gun therein. The interface between the cone portion and the neck is called a neck seal line, and the portion of the electron gun sealed to the neck called a gun sealing portion. When the distance between the panel and the neck seal line is indicated by A and the distance between the neck seal line and the gun sealing portion by B, the values of A and B satisfy the following conditions: 0.31<B/A<0.38 and 79 mm<B<95 mm.Type: GrantFiled: June 14, 2005Date of Patent: April 8, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Kue-Hong Lee, Young-Gon Hong, Yeoung-Uk Nam, Chang-Ryon Byon, Hoo-Deuk Kim, Ho-Rim Choi, Seok-Nam Lee
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Publication number: 20060202602Abstract: An electron gun includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, each of said plurality of focusing electrodes being perforated by a plurality of beam passage apertures and an anode electrode, wherein a pitch between ones of said plurality of beam passage apertures of a one of said plurality of focusing electrodes arranged closest to the second electrode is smaller than a pitch between ones of said plurality of the beam passage apertures of a remaining of said plurality of focusing electrodes.Type: ApplicationFiled: March 10, 2006Publication date: September 14, 2006Inventors: Young-Gon Hong, Yeoung-Uk Nam, Kyou-Bong Lee
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Publication number: 20060202601Abstract: A CRT includes an electron gun that includes a cathode adapted to emit thermal electrons, a first electrode and a second electrode adapted to form a triode portion together with the cathode, a plurality of focusing electrodes, an anode electrode and a subsidiary electrode arranged between the second electrode and a one of said plurality of focusing electrode adjacent to the second electrode. The subsidiary electrode is adapted to dynamically control an imaginary crossover point ofelectron beams emanating from the electron gun corresponding to landing locations ofthe electron beams on a phosphor screen of a panel in response to a voltage applied thereto.Type: ApplicationFiled: March 10, 2006Publication date: September 14, 2006Inventors: Young-Gon Hong, Nozomu Arimoto, Hoo-Deuk Kim, Min-Cheol Bae, Kue-Hong Lee
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Publication number: 20060119246Abstract: An image display device includes a cathode ray tube. The cathode ray tube includes a panel with an inner phosphor screen, and a funnel connected to the panel with a cone portion mounting a deflection unit on the outer circumference thereof. A neck is connected to the funnel while mounting an electron gun therein. The interface between the cone portion and the neck is called a neck seal line, and the portion of the electron gun sealed to the neck called a gun sealing portion. When the distance between the panel and the neck seal line is indicated by A and the distance between the neck seal line and the gun sealing portion by B, the values of A and B satisfy the following conditions: 0.31<B/A<0.38 and 79 mm<B<95 mm.Type: ApplicationFiled: June 14, 2005Publication date: June 8, 2006Inventors: Kue-Hong Lee, Young-Gon Hong, Yeoung-Uk Nam, Chang-Ryon Byon, Hoo-Deuk Kim, Ho-Rim Choi, Seok-Nam Lee
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Patent number: 6756748Abstract: An electron gun for a color CRT includes a triode unit including a cathode, a control electrode, and a screen electrode for emitting an electron beam, first and second auxiliary focusing electrodes sequentially installed coaxially with the triode unit, for forming auxiliary lenses, first and second focusing electrodes installed coaxially with the first and second electrodes, for forming a quadrupole lens, and a final acceleration electrode installed close to the second focusing electrode, for forming a main lens. In the electron gun, protruding portions having flat surfaces corresponding to opposite surfaces of the first and second focusing electrodes are formed on at least one of the opposite surfaces of the first and second focusing electrodes to change the profile of the electron beam by applying a dynamic focus voltage to the edge of electron beam passing holes formed in the opposite surfaces.Type: GrantFiled: April 30, 2002Date of Patent: June 29, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Min-Cheol Bae, Young-Gon Hong
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Patent number: 6628061Abstract: An electron gun for a cathode ray tube includes a triode having cathodes, a first grid and a second grid, one or more third grids through which electron beams emitted from the cathode pass, a fourth grid opposing the third grids and forming a main focus lens with the third grid, a shield cup connected to the fourth grid and supplying a high voltage to the fourth grid, and a correction grid disposed between the fourth grid and the shield cup and having R, G, and B beam through holes arranged along a line. The R and B beam through holes have openings with asymmetrical shapes that are symmetrical with respect to each other and relative to the straight line, balancing astigmatisms and improving resolution.Type: GrantFiled: November 19, 2001Date of Patent: September 30, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Young-gon Hong, Min-cheol Bae, Woo-seok Huh
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Patent number: 6525494Abstract: An electron gun for a color CRT includes a triode including cathodes for emitting electron beams, a control electrode, and a screen electrode, at least two focusing electrodes on the same axis of the triode portion for forming a quadrupole lens, and a final focusing electrode forming a large diameter lens with the focusing electrodes and through which three electron beams commonly pass. The electron gun includes a correction unit producing a correction force acting on the three electron beams and that is larger for two side electron beams than for a central electron beam of the three electron beams when a dynamic voltage, synchronized with a deflection signal, is applied to at least one of the focusing electrodes for forming the quadrupole lens.Type: GrantFiled: January 16, 2002Date of Patent: February 25, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Min-cheol Bae, Young-gon Hong, Woo-seok Huh
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Publication number: 20020163291Abstract: An electron gun for a color CRT includes a triode unit including a cathode, a control electrode, and a screen electrode for emitting an electron beam, first and second auxiliary focusing electrodes sequentially installed coaxially with the triode unit, for forming auxiliary lenses, first and second focusing electrodes installed coaxially with the first and second electrodes, for forming a quadrupole lens, and a final acceleration electrode installed close to the second focusing electrode, for forming a main lens. In the electron gun, protruding portions having flat surfaces corresponding to opposite surfaces of the first and second focusing electrodes are formed on at least one of the opposite surfaces of the first and second focusing electrodes to change the profile of the electron beam by applying a dynamic focus voltage to the edge of electron beam passing holes formed in the opposite surfaces.Type: ApplicationFiled: April 30, 2002Publication date: November 7, 2002Inventors: Min-Cheol Bae, Young-Gon Hong
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Patent number: 6456018Abstract: An electron gun for a color cathode ray tube includes cathodes, a control electrode, and a screen electrode, forming a triode, first, second, third, and fourth focusing electrodes, sequentially arranged relative to the screen electrode and forming at least one first quadrupole lens, fifth and sixth focusing electrodes, adjacent to the fourth focusing electrode and forming at least one second quadrupole lens, and a final accelerating electrode, adjacent to the sixth focusing electrode and forming a main lens.Type: GrantFiled: April 23, 2001Date of Patent: September 24, 2002Assignee: Samsung SDI Co., LTDInventors: Min-cheol Bae, Young-gon Hong
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Publication number: 20020130623Abstract: An electron gun for a color CRT includes a triode including cathodes for emitting electron beams, a control electrode, and a screen electrode, at least two focusing electrodes on the same axis of the triode portion for forming a quadrupole lens, and a final focusing electrode forming a large diameter lens with the focusing electrodes and through which three electron beams commonly pass. The electron gun includes a correction unit producing a correction force acting on the three electron beams and that is larger for two side electron beams than for a central electron beam of the three electron beams when a dynamic voltage, synchronized with a deflection signal, is applied to at least one of the focusing electrodes for forming the quadrupole lens.Type: ApplicationFiled: January 16, 2002Publication date: September 19, 2002Applicant: Samsung SDI Co., Ltd.Inventors: Min-cheol Bae, Young-gon Hong, Woo-seok Huh
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Patent number: 6452319Abstract: An electrode unit of an electron gun for a cathode ray tube including an outer rim electrode having a large-diameter electron beam passing hole through which three electron beams pass, and an inner electrode installed within the outer rim electrode and having a central electron beam passing hole disposed at its center and side electron beam passing holes disposed at opposite sides of the central electron beam passing hole. The side electron beam passing holes each have first and second curved sides along the sides closest to the central electron beam passing hole and opposite those sides, and linear portions connecting the first and second curved portions. The vertical and horizontal dimensions of the side electron beam passing holes are equal to each other.Type: GrantFiled: February 25, 2000Date of Patent: September 17, 2002Assignee: Samsung SDI Co., LTDInventors: Yong-geol Kwon, Young-gon Hong, Kyung-ho Kim, Kwang-jin Yoon, Deok-ho Kim
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Publication number: 20020067118Abstract: An electron gun for a cathode ray tube includes a triode having cathodes, a first grid and a second grid, one or more third grids through which electron beams emitted from the cathode pass, a fourth grid opposing the third grids and forming a main focus lens with the third grid, a shield cup connected to the fourth grid and supplying a high voltage to the fourth grid, and a correction grid disposed between the fourth grid and the shield cup and having R, G, and B beam through holes arranged along a line. The R and B beam through holes have openings with asymmetrical shapes that are symmetrical with respect to each other and relative to the straight line, balancing astigmatisms and improving resolution.Type: ApplicationFiled: November 19, 2001Publication date: June 6, 2002Applicant: Samsung SDI Co., Ltd.Inventors: Young-gon Hong, Min-cheol Bae, Woo-seok Huh
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Publication number: 20020047654Abstract: An electron gun for a color cathode ray tube is provided. The electron gun includes cathodes, a control electrode and a screen electrode, forming a triode, first, second, third and fourth focusing electrodes, sequentially installed from the screen electrode and forming at least one first quadrupole lens, fifth and sixth focusing electrodes, installed adjacent to the fourth focusing electrode and forming at least one second quadrupole lens, and a final accelerating electrode, installed adjacent to the sixth focusing electrode and forming a main lens.Type: ApplicationFiled: April 23, 2001Publication date: April 25, 2002Inventors: Min-cheol Bae, Young-gon Hong