Patents by Inventor Jong-Han Rhee
Jong-Han Rhee 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: 6836062Abstract: A cathode ray tube including a tube realized through a face panel, a funnel, and a neck; a color selection apparatus including a shadow mask having a an effective area with apertures and a mask frame supporting the shadow mask; an electron gun mounted in the neck and emitting electron beams; a deflection apparatus generating a magnetic field to deflect the electron beams; and a moire compensation circuit performing moire compensation, wherein the color selection apparatus satisfies the following condition, 0.76 ≥ Ke Ko ≥ 0.Type: GrantFiled: February 25, 2003Date of Patent: December 28, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Jong Lee, Ki-Youn Jun, Jong-Han Rhee
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Patent number: 6825600Abstract: A color selection apparatus for a cathode ray tube. A mask is formed having a long axis and a short axis. A frame supports the mask in one of a long axis direction and a short axis direction. The mask has a plurality of strips separated by a predetermined distance. A plurality of first beam apertures are formed as single long slits between the strips in a center portion of the mask. A plurality of second beam apertures are formed on outer portions of the mask to both sides of the center portion of the mask. The second beam apertures are divided into a plurality of individual units within a single column by real bridges and at least one dummy bridge for each individual second beam aperture unit. The at least on dummy bridge extends inwardly from the strips but does not cross completely through the individual second beam aperture unit.Type: GrantFiled: May 23, 2002Date of Patent: November 30, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Soon-Cheol Shin, Jong-Han Rhee, Sang-Ho Jeon, Jun-Jong Lee, Hyang-Jin Koh
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Patent number: 6762545Abstract: A tension mask for a color cathode-ray tube, a method for manufacturing the tension mask, and an exposure mask for use in the manufacture of the tension mask are provided. The tension mask is manufactured by depositing photosensitive layers over the top and bottom surfaces of a steel foil. An upper exposure mask with a pattern including a series of parallel upper light transmission portions arranged in lines is aligned over the top surface of the steel foil, and a lower exposure mask with a pattern is aligned over the bottom surface of the steel foil. Here, the pattern of the lower exposure mask includes a series of parallel lower light transmission portions arranged in lines, a plurality of first light shielding portions intersecting adjacent lower light transmission portions among the series of the parallel lower light transmission portions, and a plurality of second light shielding portions partially extending between the edges of the adjacent lower light transmission portions.Type: GrantFiled: April 18, 2001Date of Patent: July 13, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Deok-Hyeon Choe, Jong-Han Rhee, Sang-Ho Jeon, Young-Bin Im
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Patent number: 6710530Abstract: A cathode ray tube includes a panel with an inner phosphor screen, and a funnel sealed to the panel while facing the phosphor screen. The funnel is externally mounted with a deflection yoke. A neck is sealed to the rear of the funnel while mounting an electron gun to emit electron beams therein. A shadow mask is placed within the panel. The shadow mask has a hole-formation portion with a plurality of beam-guide holes, a non-holed portion externally surrounding the hole-formation portion while being shaped with a rectangular frame, and a skirt bent from the outer periphery of the non-holed portion to the rear of the panel. The skirt has a basic etching portion half-etched at a predetermined roughness. The components of the shadow mask are integrated into one body. A welding portion is formed at the bottom of the skirt with a plurality of welding points. A mask frame is internally suspension-fitted to the panel while being welded to the skirt to support the shadow mask.Type: GrantFiled: October 17, 2002Date of Patent: March 23, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Jong Lee, Kyou-Bong Lee, Jong-Han Rhee, Sang-Ho Jeon
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Publication number: 20030214214Abstract: A cathode ray tube including a tube realized through a face panel, a funnel, and a neck; a color selection apparatus including a shadow mask having a an effective area with apertures and a mask frame supporting the shadow mask; an electron gun mounted in the neck and emitting electron beams; a deflection apparatus generating a magnetic field to deflect the electron beams; and a moire compensation circuit performing moire compensation, wherein the color selection apparatus satisfies the following condition, 1 0.76 ≥ Ke Ko ≥ 0.Type: ApplicationFiled: February 25, 2003Publication date: November 20, 2003Applicant: Samsung SDI Co., Ltd.Inventors: Jun-Jong Lee, Ki-Youn Jun, Jong-Han Rhee
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Patent number: 6628059Abstract: A color selection apparatus for a cathode ray tube includes a mask bearing a shape with short and long axes, and a frame combined with the mask. The mask is fitted to the frame while being tensioned either in the long axis direction or in the short axis direction. The mask has a plurality of strips spaced apart from each other by a predetermined distance, a plurality of real bridges disposed between the neighboring strips with a predetermined pitch while defining beam-guide holes, and one or more dummy bridges placed within each beam-guide hole while being extended from the strips in at least one direction. In any one reference column of m=0 and the other neighboring columns of m±n (n is a natural number), the real bridges arranged at the reference column are placed at lines different from the real bridges arranged at the columns of at least m±2 in the long axis direction.Type: GrantFiled: February 26, 2002Date of Patent: September 30, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Jong-Han Rhee, Soon-Cheol Shin, Hyang-Jin Koh, Sang-Ho Jeon, Jun-Jong Lee
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Patent number: 6621201Abstract: The present invention describes the details of a flat mask before tension is applied, an assembling method of that flat mask, and a tension mask assembly manufactured by using that method in order to obtain satisfactory thermal expansion, uniform stress distribution and linearity. The flat mask includes an apertured portion and supporting ends surrounding the apertured portion. The apertured portion comprises a plurality of concave pin-cushion type or convex barrel type strips, a plurality of real bridges connecting strips and dividing slots, and dummy bridges formed in the slots. The short supporting ends have the same width along a longitudinal direction and are formed to have the same curvature as the strips facing the supporting ends. The short supporting ends are preferably half-etched in order to make the volume of material removed from the short supporting ends greater than the volume of material removed from the apertured portion.Type: GrantFiled: April 23, 2002Date of Patent: September 16, 2003Assignee: SamSung SDI Co., Ltd.Inventors: Sang-Ho Jeon, Jong-Han Rhee, Hyang-Jin Koh, Jun-Jong Lee, Dong-Hwan Kim
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Patent number: 6614154Abstract: A tension mask frame assembly for a color picture tube includes a tension mask where a plurality of strips formed on a thin plate to be separated a predetermined distance forming slots, a plurality of tie bars for connecting the strips and sectioning the slots at a predetermined pitch, and a plurality of dummy bridges extending from at least one strip toward a facing strip in the slots sectioned by the tie bars, and a frame supporting the edge of the tension mask so that a not less than can be applied to the tension mask. In the tension mask frame assembly, the area of the dummy bridge of the tension mask is smaller from the central portion of the tension mask to the peripheral portion thereof.Type: GrantFiled: April 20, 2001Date of Patent: September 2, 2003Assignee: Samsung SDI Co., Ltd.Inventors: Soon-cheol Shin, Sung-oh Rho, Chan-yong Kim, Jong-han Rhee
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Publication number: 20030085648Abstract: A cathode ray tube includes a panel with an inner phosphor screen, and a funnel sealed to the panel while facing the phosphor screen. The funnel is externally mounted with a deflection yoke. A neck is sealed to the rear of the funnel while mounting an electron gun to emit electron beams therein. A shadow mask is placed within the panel. The shadow mask has a hole-formation portion with a plurality of beam-guide holes, a non-holed portion externally surrounding the hole-formation portion while being shaped with a rectangular frame, and a skirt bent from the outer periphery of the non-holed portion to the rear of the panel. The skirt has a basic etching portion half-etched at a predetermined roughness. The components of the shadow mask are integrated into one body. A welding portion is formed at the bottom of the skirt with a plurality of welding points. A mask frame is internally suspension-fitted to the panel while being welded to the skirt to support the shadow mask.Type: ApplicationFiled: October 17, 2002Publication date: May 8, 2003Applicant: Samsung SDI Co., Ltd.Inventors: Jun-Jong Lee, Kyou-Bong Lee, Jong-Han Rhee, Sang-Ho Jeon
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Publication number: 20030048061Abstract: A tension mask for a color cathode-ray tube includes a plurality of strips separated by a predetermined distance and connected by real bridges. The strips define slots, through which an electron beam passes, together with the real bridges. The slots are formed such that the width of middle portions of the slots is narrower than the width of upper and lower portions of the slots in order to compensate for contraction of the strips arising when tension is applied to the strips.Type: ApplicationFiled: September 3, 2002Publication date: March 13, 2003Inventors: Sang-Ho Jeon, Jong-Han Rhee, Kun-Moo Lee
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Publication number: 20020190629Abstract: The present invention describes the details of a flat mask before tension is applied, an assembling method of that flat mask, and a tension mask assembly manufactured by using that method in order to obtain satisfactory thermal expansion, uniform stress distribution and linearity. The flat mask includes an apertured portion and supporting ends surrounding the apertured portion. The apertured portion comprises a plurality of concave pin-cushion type or convex barrel type strips, a plurality of real bridges connecting strips and dividing slots, and dummy bridges formed in the slots. The short supporting ends have the same width along a longitudinal direction and are formed to have the same curvature as the strips facing the supporting ends. The short supporting ends are preferably half-etched in order to make the volume of material removed from the short supporting ends greater than the volume of material removed from the apertured portion.Type: ApplicationFiled: April 23, 2002Publication date: December 19, 2002Inventors: Sang-Ho Jeon, Jong-Han Rhee, Hyang-Jin Koh, Jun-Jong Lee, Dong-Hwan Kim
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Publication number: 20020185952Abstract: A color selection apparatus for a cathode ray tube. A mask is formed having a long axis and a short axis. A frame supports the mask in one of a long axis direction and a short axis direction. The mask has a plurality of strips separated by a predetermined distance. A plurality of first beam apertures are formed as single long slits between the strips in a center portion of the mask. A plurality of second beam apertures are formed on outer portions of the mask to both sides of the center portion of the mask. The second beam apertures are divided into a plurality of individual units within a single column by real bridges and at least one dummy bridge for each individual second beam aperture unit. The at least on dummy bridge extends inwardly from the strips but does not cross completely through the individual second beam aperture unit.Type: ApplicationFiled: May 23, 2002Publication date: December 12, 2002Inventors: Soon-Cheol Shin, Jong-Han Rhee, Sang-Ho Jeon, Jun-Jong Lee, Hyang-Jin Koh
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Publication number: 20020117957Abstract: A color selection apparatus for a cathode ray tube includes a mask bearing a shape with short and long axes, and a frame combined with the mask. The mask is fitted to the frame while being tensioned either in the long axis direction or in the short axis direction. The mask has a plurality of strips spaced apart from each other by a predetermined distance, a plurality of real bridges disposed between the neighboring strips with a predetermined pitch while defining beam-guide holes, and one or more dummy bridges placed within each beam-guide hole while being extended from the strips in at least one direction. In any one reference column of m=0 and the other neighboring columns of m±n (n is a natural number), the real bridges arranged at the reference column are placed at lines different from the real bridges arranged at the columns of at least m±2 in the long axis direction.Type: ApplicationFiled: February 26, 2002Publication date: August 29, 2002Inventors: Jong-Han Rhee, Soon-Cheol Shin, Hyang-Jin Koh, Sang-Ho Jeon, Jun-Jong Lee
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Publication number: 20010052746Abstract: A tension mask frame assembly for a color picture tube includes a tension mask where a plurality of strips formed on a thin plate to be separated a predetermined distance forming slots, a plurality of tie bars for connecting the strips and sectioning the slots at a predetermined pitch, and a plurality of dummy bridges extending from at least one strip toward a facing strip in the slots sectioned by the tie bars, and a frame supporting the edge of the tension mask so that a not less than can be applied to the tension mask. In the tension mask frame assembly, the area of the dummy bridge of the tension mask is smaller from the central portion of the tension mask to the peripheral portion thereof.Type: ApplicationFiled: April 20, 2001Publication date: December 20, 2001Inventors: Soon-Cheol Shin, Sung-Oh Rho, Chan-Yong Kim, Jong-Han Rhee
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Publication number: 20010050524Abstract: A tension mask for a color cathode-ray tube, a method for manufacturing the tension mask, and an exposure mask for use in the manufacture of the tension mask are provided. The tension mask is manufactured by depositing photosensitive layers over the top and bottom surfaces of a steel foil. An upper exposure mask with a pattern including a series of parallel upper light transmission portions arranged in lines is aligned over the top surface of the steel foil, and a lower exposure mask with a pattern is aligned over the bottom surface of the steel foil. Here, the pattern of the lower exposure mask includes a series of parallel lower light transmission portions arranged in lines, a plurality of first light shielding portions intersecting adjacent lower light transmission portions among the series of the parallel lower light transmission portions, and a plurality of second light shielding portions partially extending between the edges of the adjacent lower light transmission portions.Type: ApplicationFiled: April 18, 2001Publication date: December 13, 2001Inventors: Deok-Hyeon Choe, Jong-Han Rhee, Sang-Ho Jeon, Young-Bin Im