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公开(公告)号：JP2003208858A
公开(公告)日：2003-07-25
申请号：JP2002005020
申请日：2002-01-11
Applicant: TOSHIBA CORP
Inventor： OKUBO SHUNJI , KIMIYA JUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a cathode ray tube device with an electron gun structural body capable of increasing a quality by orderly arranging characteristics at all cathodes. SOLUTION: An electron beam generating part for generating three-electron beam formed of a center beam and a pair of side beams on both sides thereof which are disposed on a same horizontal plane comprises cathode structural bodies formed by holding three cathodes K and cathode supports for holding the cathode structural bodies. The cathode supports comprises cylindrical cathode support cylinders 16 and a cathode support straps 17 having a generally semi-cylindrical curved part and supportedly fixed to an insulation support body 10. The material of the cathode support straps forming the cathode supports is different between a center cathode for producing the center beam and the pair of side cathodes for producing the side beam. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2001084922A
公开(公告)日：2001-03-30
申请号：JP2000126072
申请日：2000-04-26
Applicant: TOSHIBA CORP
Inventor： KIMIYA JUNICHI , OKUBO SHUNJI
Abstract: PROBLEM TO BE SOLVED: To provide a cathode-ray tube device, having an electron gun improving resolution over the entire screen by improving a beam spot shape without adding stem lead wires. SOLUTION: In this device, an electron beam generating part for generating an electron beam has a cathode and a plurality of electrodes. Two electrodes G2, G3 of these electrodes are connected to each other via a resistor 21. To one electrode G2, a uniform voltage is applied from the outside of the tube. To an electrode G4 adjacent the other electrode G3, a voltage is supplied which varies dynamically in synchronization with a deflecting magnetic field.
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公开(公告)号：JP2000106109A
公开(公告)日：2000-04-11
申请号：JP27834598
申请日：1998-09-30
Applicant: TOSHIBA CORP
Inventor： SUGAWARA SHIGERU , HASEGAWA TAKAHIRO , OKUBO SHUNJI , KIMIYA JUNICHI , HOSHINO FUMITAKA
IPC: H01J29/90
Abstract: PROBLEM TO BE SOLVED: To provide a color cathode-ray tube capable of securing safety by suppressing production of cracks due to thermal impact on a sealed part between a neck part and a stem part of the color cathode-ray tube. SOLUTION: In a color-cathode ray tube formed by a vacuum envelope, having at least a panel part 21, a funnel part 23, a neck part 22 and a stem part 30. at least one glass layer 1, having linear coefficient of thermal expansion between the linear coefficient of thermal expansion of glass for the neck and the linear coefficient of thermal expansion of glass for the stem, is used between the neck part 22 and the stem part 30 for welded connection between them.
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公开(公告)号：JPH11329284A
公开(公告)日：1999-11-30
申请号：JP6527499
申请日：1999-03-11
Applicant: TOSHIBA CORP
Inventor： KIMIYA JUNICHI , AWANO KOJI , SUGAWARA SHIGERU
IPC: H01J29/48
Abstract: PROBLEM TO BE SOLVED: To provide a satisfactory image characteristic in the entire image area by reducing a lateral collapsing phenomenon of an electron beam caused by a lens magnification difference between the horizontal direction and the vertical direction generated in an image periphery. SOLUTION: An electron gun of this cathode ray tube has a main electron lens part constituted of at least four electrodes arranged with first, second, third and fourth grinds 5, 6, 7, 8 in this order, a first voltage of middle potential is impressed to the first grid 5, and an anode voltage is impressed to the fourth grid 8. The second grid 6 and the third grid 7 neighboring each other are connected with a resistor 100, and the second and third voltages having substantially same potentials, corresponding to a substantially intermediate potential between the first voltage of middle potential and the anode voltage are impressed to them respectively. An asymmetric lens is formed between the second grid 6 and the third grid 7 which neighbor each other, and a voltage varying, which is synchronized with a deflection magnetic field, is impressed to the first grid 5.
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公开(公告)号：JPH11204058A
公开(公告)日：1999-07-30
申请号：JP478098
申请日：1998-01-13
Applicant: TOSHIBA CORP
Inventor： SUGAWARA SHIGERU , KIMIYA JUNICHI , KANBARA EIJI
IPC: H01J29/50
Abstract: PROBLEM TO BE SOLVED: To carry out static and dynamic focusing adjustment of a television picture tube apparatus without increasing the stem pins. SOLUTION: This television picture tube comprises an electron gun 27 and a resistor 28 for supplying a prescribed voltage to selected electrodes of the main lens part of the electron gun. At least three electrodes arranged in a first, a second, and a third electrodes G3, G5, G7 in this order in the phosphor screen direction from the cathode are installed in the main lens part. The first, the second, and the third electrodes G3, G5, G7 are electrically connected with a resistor 28 and a prescribed voltage from the outside of the picture tube and dynamic voltage synchronized to the electron beam are applied to the fist electrode G3.
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Patent Agency Ranking
公开(公告)号：JPH09129162A
公开(公告)日：1997-05-16
申请号：JP28774795
申请日：1995-11-07
Applicant: TOSHIBA CORP
Inventor： KIMIYA JUNICHI , SUGAWARA SHIGERU
Abstract: PROBLEM TO BE SOLVED: To use an electron gun having an insufficient number of stem pins for the conventional stem without increasing the number of the stem pins. SOLUTION: This cathode-ray tube is provided with an electron gun 16, a cathode, a heater H, and a stem having multiple stem pins for feeding the prescribed voltage to selected electrodes. The heater H is connected to a closed circuit containing the first power source 23 feeding the prescribed voltage between its terminals, the first electrode G1 is connected to the earth side of the closed circuit, and the second power source 24 feeding the prescribed voltage to the first electrode G1 is connected to the closed circuit while the voltage between the heater terminals is held by the first power source 23.
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公开(公告)号：JPH08329863A
公开(公告)日：1996-12-13
申请号：JP13899495
申请日：1995-06-06
Applicant: TOSHIBA CORP
Inventor： KIMIYA JUNICHI , SUGAWARA SHIGERU
Abstract: PURPOSE: To use an electron gun lacking in stem pins in the conventional system to serve without increasing the number of stem pins provided. CONSTITUTION: A cathode-ray tube includes an electron gun 16, a stem to seal the end of the neck, and a resistor 17 installed in the neck along the electrode gun, wherein the resistor 17 divides the high voltage supplied to a high voltage supplying terminal part 3a at one end and supplies the obtained voltage to at least one selected electrode Gm1, Gm2 other than that electrode which is supplied with voltage from intermediate terminal parts 3c, 3d through stem pins. The earth connecting terminal part 3b of the resistor is connected with the earth terminal of a heater H.
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公开(公告)号：JPH08171869A
公开(公告)日：1996-07-02
申请号：JP31296194
申请日：1994-12-16
Applicant: TOSHIBA CORP
Inventor： SUGAWARA SHIGERU , KIMIYA JUNICHI , KANBARA EIJI
Abstract: PURPOSE: To provide a superior image characteristics by comprising a main electron lens part of the first and the second electron lenses in the second screen side, comprising the first electron lens from the first to the third electrodes in a position from the negative electrode side to a screen, and setting its electrode potential to a prescribed potential. CONSTITUTION: Electron beams 6 emitted from negative electrodes KB, KG, KR are focused a little by the negative electrodes KB-KR and grids G1 -G3 and are 1 incident on the first electron lens. The electron beams 6 are first irradiated in the perpendicular direction of a quadrupole lens component QL, receive such an action as strongly focusing in the horizontal direction, and the outer beam 6o emits more largely than the inner beam 6i . The beam 6o largely receives spherical aberration in a region of a next cylindrical electron lens component CL so as to be strongly focused by the beam 6i and is incident on the second electron lens L2 formed by grids G5 , G6 at small emission angle. Then, the beam 6 passes toward an isolated axis than the beam 6o , receives spherical aberration, and is focused on a phosphor screen 3. Beam 6o is also focused on the same position as the beam 6i . The electron beams 6 are horizontally focused on the screen 3 by passing an adjacent axis of the cylindrical lens component CL.
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公开(公告)号：JPH06251723A
公开(公告)日：1994-09-09
申请号：JP3719193
申请日：1993-02-26
Applicant: TOSHIBA CORP
Inventor： KIMIYA JUNICHI , KANBARA EIJI
Abstract: PURPOSE:To improve the beam spot of the entire region of a screen, and to improve focus characteristic by easily focusing three electron beam. CONSTITUTION:A color picture tube device is provided with an electron gun 21 emitting three-electron beam aligned in a line, and a deflection device 8 having first and second deflection coils chiefly forming a pin-cushion form deflection magnetic field for deflecting the three-electron beam and a barrel- shape deflection magnetic field, respectively. A quadrupole magnetic field which is symmetrical to the gun axis, and whose polarity is reverse thereto, is formed between an electron lens part containing the electron lens part of the electron gun and the deflection device. The magnetic charge of each magnetic pole of the quadruple magnetic field are distributed in the range of no less than 30 with each magnetic pole serving as a center, while the center of the magnetic charge region of each magnetic pole is located in the range of no less than + or -45 deg. in relation to the alignment axis of the three-electron beam, or an almost annular magnet member 30 having a region rich in magnetic charge is provided in the range of no less than + or -45 deg..
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公开(公告)号：JPH03236141A
公开(公告)日：1991-10-22
申请号：JP3214790
申请日：1990-02-13
Applicant: TOSHIBA CORP
Inventor： KANBARA EIJI , KIYONO KAZUYUKI , KIMIYA JUNICHI
Abstract: PURPOSE:To prevent a beam spot from being increased in diameter when the current quantity of an electron beam is large by providing an auxiliary deflection device, auxiliarily deflecting the electron beam emitted from an electron gun, and adjusting the auxiliary deflection quantity. CONSTITUTION:An auxiliary deflection device 21 is fitted on the outside of the neck 5 of a color picture tube device in response to an electron gun 7 arranged inside. The device 21 is connected to an auxiliary deflection device drive circuit 26 connected to a picture tube drive circuit 24 driving a color picture tube and a deflection yoke drive circuit 25 driving a deflection yoke 8 respectively. When the speed modulation current with the magnitude corresponding to the current quantity of an electron beam nearly proportional to the drive voltage applied to a cathode is fed to the device 21, the beam diameter over the whole fluorescent screen 3 can be shrunk. When it is set to the speed modulation current with the magnitude corresponding to the horizontal deflection quantity of the yoke 8, the beam spot diameter at the periphery section of the screen 3 can be made equal to that at the center section.
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