公开(公告)号：JPS636803A

公开(公告)日：1988-01-12

申请号：JP14957486

申请日：1986-06-27

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC DEVICE ENG

Inventor： NIKAIDO MASARU ,  OUCHI YOSHIAKI ,  SUGAWARA SHIGERU ,  YAMAGUCHI HIDEKI

IPC: H01C17/06 ,  H01C17/02

公开(公告)号：JP2000311635A

公开(公告)日：2000-11-07

申请号：JP912899

申请日：1999-01-18

Applicant: TOSHIBA CORP

Inventor： SUGAWARA SHIGERU ,  KOBA HIROYUKI ,  HOSHINO FUMITAKA ,  TAKADA HIDENORI ,  ICHIKAWA MASATOSHI

IPC: H01J29/90 ,  H01J29/92

Abstract: PROBLEM TO BE SOLVED: To provide a color cathode-ray tube having high reliability and high resolution while saving the power by narrowing the neck diameter so as to lower the deflecting power, improving the focus characteristic, and giving the compatibility with other color cathode-ray tube. SOLUTION: In a cathode-ray tube, at least one part of a conductive wire 30 of a stem 13 for sealing a neck end of a funnel forming a vacuum envelope is bent in a projecting part 31 surrounding an internal conductor part 28 so that the bend part of this conductive wire is arranged outside in the radial direction of the stem in relation to the center axis of the projecting part, and the arrangement diameter of the internal conductor part is formed smaller than the arrangement diameter of the outside conductor part 29.

公开(公告)号：JP2000277034A

公开(公告)日：2000-10-06

申请号：JP7959999

申请日：1999-03-24

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： HOSHINO FUMITAKA ,  SUGAWARA SHIGERU ,  SHIMAOUGI TOSHIO ,  UENO HIROBUMI

IPC: H01J9/04 ,  H01J9/18 ,  H01J29/04 ,  H01J29/48

Abstract: PROBLEM TO BE SOLVED: To constitute an electron gun for a cathode ray tube achieving brightness and chromaticity of a screen to a level causing no visual problems in a short period by reducing a warm-up time. SOLUTION: In this electron gun for a cathode ray tube, an opening 32 is provided on a sidewall of a first grid G1, a cylindrical cathode holder 15 holding a cathode K and a cathode support cylinder 18 engaging and welded with the periphery of the cathode holder 15 for supporting a cathode structure are welded via its opening, and the welded point 25 is formed at the end part of the cathode side of the cathode holder 15.

公开(公告)号：JP2000251759A

公开(公告)日：2000-09-14

申请号：JP5146199

申请日：1999-02-26

Applicant: TOSHIBA CORP

Inventor： HOSHINO FUMITAKA ,  SUGAWARA SHIGERU

IPC: H01J29/48 ,  H01J29/51

Abstract: PROBLEM TO BE SOLVED: To provide an electron gun body structure for an inline color cathode ray tube capable of providing an excellent resolution by converging excellently three electron beams over the whole region on a phosphor screen. SOLUTION: Upper and lower two plate-shaped correction electrodes 3 are arranged on the phosphor screen side of a final accelerating electrode G4 so as to pinch a side beam from the vertical direction V. The correction electrodes 3 are arranged obliquely relative to the horizontal direction H, so that the interval in the vertical direction V becomes narrower gradually in proportion to the distance from the center beam side in the reverse side direction of the horizontal direction H.

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.

公开(公告)号：JP2000011922A

公开(公告)日：2000-01-14

申请号：JP17868698

申请日：1998-06-25

Applicant: TOSHIBA CORP

Inventor： HASEGAWA TAKAHIRO ,  OKUBO SHUNJI ,  SUGAWARA SHIGERU

IPC: H01J29/90 ,  H01J29/92

Abstract: PROBLEM TO BE SOLVED: To make a color picture tube capable of attaining high resolution while power is saved by specifying the outside diameter of a neck where an electron gun is disposed, the diameter of a pin circle of a stem pin outside of a flare part, and the maximum diameter of a base fixed to the outside of the flare part through adhesion. SOLUTION: An electron gun 8 for emitting three beams arranged in a line passing on the same horizontal plane is disposed in a neck 2 of a funnel. The end part of the neck 2 is sealed by welding of a flare part 10 of a stem 9 to the neck 2, plural stem pins 10 are passed airtightly on the same periphery of the flare part 10, and a stem protecting base 15 is fixed to the outside of the stem 9 by a silicon-base adhesive. In this arrangement, the outside diameter of the neck 2 is 22-23 mm, the diameter of a pin circle of the stem pin 1 outside the flare part 10 is nominally 15. 24 mm, and the maximum diameter of the base 15 is 23 mm or less. Thus, a deflection yoke mounted on the outside of the funnel can be reduced until it can be made to adhere to the outer surface of the neck, so that power consumption is reduced.

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.

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.

公开(公告)号：JPH11176348A

公开(公告)日：1999-07-02

申请号：JP33876197

申请日：1997-12-09

Applicant: TOSHIBA CORP

Inventor： SUZUKI FUMITO ,  HASEGAWA TAKAHIRO ,  SUGAWARA SHIGERU

IPC: H01J31/20 ,  H01J29/48

Abstract: PROBLEM TO BE SOLVED: To suppress field emission between a resistor and a neck inner wall and the breakage of a resistor at a withstand voltage treatment time in an electron gun structure provided with the resistor and a suppressor ring. SOLUTION: In an electron gun structure provided with a resistor 10 and a suppressor ring 13, a resistor 10 electrically connecting third grid G3 and fifth grid G5 to each other is provided along the lengthwise direction side face of a bead glass 12. A position where the resistor 10 is arranged is a sufficient distance apart from a neck 5, and is equivalent to a position departing from the tube axis direction of the suppressor ring 13.

公开(公告)号：JPH09147768A

公开(公告)日：1997-06-06

申请号：JP15885295

申请日：1995-06-26

Applicant: TOSHIBA CORP

Inventor： KANBARA EIJI ,  SUGAWARA SHIGERU ,  SHIMOKAWABE JIRO

IPC: H01J31/00 ,  G09G1/28 ,  H01J31/20 ,  H04N9/24

Abstract: PURPOSE: To reproduce a good color image by controlling the operation of each electron gun and that of each deflecting device so that scanning of electron beams over a plurality of areas into which one screen part is divided, and switching of colors are performed using time division. CONSTITUTION: An electron beam 18 emitted from each electron gun 15 is deflected by horizontal and vertical magnetic fields produced by each deflecting yoke 16, to scan one screen part 13 while dividing it into a plurality of regions. The electron beams 18 emitted from the twelve electron guns 15 disposed within the necks 14 of twelve funnels 11 are deflected by the magnetic fields produced by the twelve deflecting yokes 16, so that the screen part 13 is scanned while being divided horizontally into four and vertically into three, a total of twelve regions. This division into the regions is controlled based on signals transmitted from a control part controlling the operation of each electron gun 15 and yoke 16. Thus a continuous color image that has no gaps and overlaps is displayed on the screen part 13.