公开(公告)号：JP2002042677A

公开(公告)日：2002-02-08

申请号：JP2000230923

申请日：2000-07-31

Applicant: TOSHIBA CORP

Inventor： TANI MUNECHIKA

IPC: H01J29/07

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube having excellent characteristics against an impact in production and transportation, and a mask frame capable of assuring torsional rigidity while suppressing increase in weight. SOLUTION: Joining bead workings 44a to 44d for joining long side walls 41a and 41b to short side walls 41C and 41d through side walls 41c and 41d are applied near the corners of a bottom surface 43, and the longitudinal direction of the joining beam workings is positioned generally orthogonal to a diagonal axis passing corner walls near the joining beads. Thus, an excellent impact resistance can be provided.

公开(公告)号：JPH11339678A

公开(公告)日：1999-12-10

申请号：JP14266798

申请日：1998-05-25

Applicant: TOSHIBA CORP

Inventor： AKO NOBUHIKO ,  MURAI TAKASHI ,  TANI MUNECHIKA

IPC: H01J29/07

Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of mislanding even when the ambient temperature is changed by welding the skirt section of a shadow mask main body and the side wall section of a frame at positions near the major axis between the diagonal axes and the major axis, and forming notches weakening the rigidity in the minor axis direction of the frame near the weld points. SOLUTION: A shadow mask main body 29 is made of a small-thermal expansion material such as invar having the thermal expansion coefficient of 1/2 or below that of iron, and a frame 31 is made of an iron material such as a cold rolled steel sheet. When notches 33 are formed on the short side wall sections 30 of the frame 31 near the weld points near the major axis between diagonal axes and the major axis and welded, the rigidity in the minor axis direction of the short side wall sections 30 near the weld points can be weakened. The minor axis direction component of elongation is absorbed by the deformation of the frame 31 near the weld points, and the deformation of the effective face 26 of the shadow mask main body 29 is prevented. When the ambient temperature is increased or decreased, the same effect is obtained, and the deterioration in color purity is prevented.

公开(公告)号：JP2002100307A

公开(公告)日：2002-04-05

申请号：JP2000292879

申请日：2000-09-26

Applicant: TOSHIBA CORP

Inventor： TANI MUNECHIKA ,  MURAI TAKASHI

IPC: H01J9/24 ,  H01J29/87

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube and its manufacturing method wherein a shape as a whole set is made down-sized as much as possible even if an image plane itself has become larger when it is assumed that the whole set becomes large-sized because mounting fittings for the color picture tube to be mounted in a case body also become larger, accompanied with a large-sizing and flattening of the color picture tube. SOLUTION: By the mounting fittings 21 of the color picture tube 22 being positioned in the inside of a block sectioned by a tangential extension lines of respective sides of a face panel 11, a spatial distance between the color picture tube 22 and the case body 31 is made as small as possible. As a means for this, when a mounting fittings 21 is formed, a lug piece 38 and a stationary piece 40 are press-molded in a nearly right angle, and a through-hole 39 is drill-installed and formed in the lug piece 38 afterwards.

公开(公告)号：JP2000277027A

公开(公告)日：2000-10-06

申请号：JP7955799

申请日：1999-03-24

Applicant: TOSHIBA CORP

Inventor： TANI MUNECHIKA ,  MURAI TAKASHI ,  INOUE MASAFUMI ,  SUZUKI FUMITO ,  UCHIGAWA TOSHIO

IPC: H01J29/07

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube capable of preventing undesired light emission from a phosphor layer occurring when an electron beam collides and reflects on a sidewall of an open hole and capable of suppressing degradation of mechanical strength of a shadow mask. SOLUTION: An open hole of a shadow mask of this color picture tube is so structured that a small hole on an opposite side of a large hole on a phosphor screen side is made eccentric in a center direction of the shadow mask except at a center A of the shadow mask and an eccentricity of the small hole to the large hole is maximum at an intermediate part B between a center and a peripheral part of the shadow mask. When the quantity of eccentricity is set to be maximum at the intermediate part between the center part of the shadow mask and the peripheral part in a longitudinal direction, degradation of mechanical strength of the shadow mask is prevented, and undesired light emission from the phosphor layer occurring when an electron beam collides on a sidewall of the large hole and reflects in a phosphor screen direction is prevented so as to structure a color picture tube capable of displaying a good quality image. And particularly, an outer surface of an effective part of the panel is applied to a flat color picture tube to obtain a remarkable effect.

公开(公告)号：JP2000133160A

公开(公告)日：2000-05-12

申请号：JP30203198

申请日：1998-10-23

Applicant: TOSHIBA CORP

Inventor： MURAI TAKASHI ,  TANI MUNECHIKA ,  INOUE MASACHIKA

IPC: H01J29/07

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube resisting deterioration of color purity by enhancing the strength for retaining the curved surface of a mask body to reduce the shift of beam landing. SOLUTION: This color picture tube, has a generally rectangular shadow mask 30 that comprises an effective surface 32 made of a curved surface opposite to a phosphor screen, a mask body 35 consisting of an unperforated part 33 surrounding the effective screen and a skirt part 34 formed by curving the outer periphery thereof, and a mask frame 36 mounted on the skirt part. A structure in which the radius of curvature of the effective surface of the mask body, in the direction of at least either a minor or major axis, is at its minimum in the vicinity of a position halfway between the center and the circumference of the effective surface is adopted.

公开(公告)号：JP2005056835A

公开(公告)日：2005-03-03

申请号：JP2004213330

申请日：2004-07-21

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： SHIMIZU NORIO ,  TANI MUNECHIKA ,  NIHEI FUMIAKI

IPC: H01J29/07 ,  H01J29/80 ,  H01J29/86

CPC classification number: H01J29/80 ,  H01J29/07 ,  H01J2229/0794

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive cathode-ray tube capable of improving a display quality.
SOLUTION: A shadow mask has a long axis H and a short axis V intersecting orthogonally with each other, and the relations Cxm0

Abstract translation: 要解决的问题：提供能够提高显示质量的便宜的阴极射线管。 解决方案：阴影掩模具有长轴H和短轴V彼此正交交叉，并且关系Cxm0

公开(公告)号：JP2003077402A

公开(公告)日：2003-03-14

申请号：JP2001267677

申请日：2001-09-04

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： MASUNAGA TAKAYUKI ,  TAKAHASHI FUJIO ,  OE ATSUSHI ,  INOUE MASACHIKA ,  SHIMIZU NORIO ,  TANI MUNECHIKA

IPC: H01J29/02

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube which prevents displacement or fall-off even when an impact or vibration, by making a fitting which maintains an accurate relative positions of a mask frame and a glass panel, and obtains improved reliability.
SOLUTION: The color picture tube is provided with a tube body 1 with a phosphor screen 4 formed on the inside face of the front side, a stud pin 10 with its base end firmly fixed to the tube body and with the tip part protruding inward, and a mask frame 9 sealed in the tube body with a shadow mask 8 opposing the phosphor screen and fitted with a holder 11 on the periphery face to be engaged with the stud pin. A protrusion T is set at either the tip of the stud pin or an opposing face of the holder opposite to the tip of the stud pin, and a recess K is set at the other, so that, the mask frame is supported by the stud pin through the holder by engagement of the protrusion T and the recess K.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种通过进行保持掩模框架和玻璃面板的精确相对位置的配合的冲击或振动来防止位移或脱落并获得提高的可靠性的彩色显像管。 解决方案：彩色显象管设置有管体1，其具有形成在前侧的内侧面上的荧光屏4，其基端牢固地固定到管体并且尖端部向内突出的双头螺柱销10， 以及密封在管体中的荫罩框架9，其上具有与荧光屏相对的荫罩8，并且在周面上装配有与螺柱销接合的保持器11。 突出部T设置在螺柱销的前端或与支柱销的前端相对的保持件的相对面上，另一方面设置有凹部K，使得荫罩框架由螺柱支撑 通过突起T和凹槽K的接合而穿过保持器。

公开(公告)号：JPH11126569A

公开(公告)日：1999-05-11

申请号：JP29269897

申请日：1997-10-24

Applicant: TOSHIBA CORP

Inventor： TANI MUNECHIKA ,  AKOU NOBUHIKO ,  MURAI TAKASHI ,  INOUE MASACHIKA

IPC: H01J29/82

Abstract: PROBLEM TO BE SOLVED: To provide a color picture tube device to correct the landing slippage, which is generated by thermal expansion of a shadow mask in case the device is left operating for a comparatively long time, effectively using displacement of a deflector. SOLUTION: On the outside of a funnel 2, a deflector 31 is mounted to deflect an electron beam emitted by an electron gun 7 installed inside a neck 5, and images are produced and displayed by scanning a fluorescent screen 3 through a shadow mask 4. In this color picture tube device, the deflector 31 is equipped with a displacing means 32 which displaces the deflector 31 in the axial direction of the picture tube with the lapse of time about the operation of the picture tube.

公开(公告)号：JPH0896725A

公开(公告)日：1996-04-12

申请号：JP23392194

申请日：1994-09-29

Applicant: TOSHIBA CORP

Inventor： AKOU NOBUHIKO ,  MURAI TAKASHI ,  YOKOTA TAKAHIRO ,  TANI MUNECHIKA

IPC: H01J29/02

Abstract: PURPOSE: To stabilize electrical connection of a contact spring by providing a plurality of opening holes in a position near a press contact part of this spring, in the contact spring of electrically connecting a shadow mask to an internal surface conductive film. CONSTITUTION: A shadow mask 5 mounted in side a panel 1 and an internal surface conductive film 15 formed in an internal surface of a funnel 2 are electrically connected by a contact spring 30. Here in a spring part 32 of the contact spring 30, with an unopening hole part 35 of fixed width (d) left in a position near a press contact part 33, three opening holes 36 of almost the same size, with the long diameter in a lengthwise direction of the spring part 32, are formed in parallel to a width direction of the spring part 32. Further, a signle opening hole 37, with its long diameter in the lengthwise direction of the spring part 32, is formed in a central part between the opening holes 36 and a fixed part 31. In this way, each press contact part 33 is uniformly brought into contact with the internal surface conductive film 15, to stabilize contact of each press contact part 33 relating to the internal surface conductive part 15.

公开(公告)号：JP2001343756A

公开(公告)日：2001-12-14

申请号：JP2000160890

申请日：2000-05-30

Applicant: TOSHIBA CORP

Inventor： TANI MUNECHIKA ,  UCHIGAWA TOSHIO ,  INOUE MASACHIKA

IPC: G03F7/24 ,  H01J9/227

Abstract: PROBLEM TO BE SOLVED: To uniformly expose the fluorescent surface of a panel of a color image picture tube. SOLUTION: An exposure device 10 has a support base 12 for positioning a panel 1, a light source L and plural correction lenses 16a, 16b, 16c and 16d which correct the orbit of light. The flanks or non-use regions of the at least one correction lenses are subjected to black coating. The scattering of the unwanted light in exposure reduced, and the illuminance of the exposure range on the inside surface of the panel 1 is readily optimized and the satisfactory fluorescent surface 3 may be formed.