公开(公告)号：JPS59165351A

公开(公告)日：1984-09-18

申请号：JP3743883

申请日：1983-03-09

Applicant: Toshiba Corp

Inventor： TOKITA KIYOSHI ,  SONE TOSHIHISA ,  NAKAMURA MICHIO

IPC: H01J29/86

CPC classification number: H01J29/861 ,  H01J2229/862

Abstract: PURPOSE:To reduce curvature in the vertical direction while suppressing substantially a color shift by setting the specific relations among the curvature including a vertical axis, the curvature including a horizontal axis and the curvature including a diagonal axis of the glass panel inner surface. CONSTITUTION:Assuming that the panel curvature of the screen part in the vertical axis direction (1-2v) is (Rp-v), that of the screen part in the diagonal axis direction (1-2D) is (Rp-D) and that of the screen part in the horizontal axis direction (1-2H) is (Rp-H), it is so constituted that the relations of said panel curvature shall be (Rp-v)

Abstract translation: 目的：通过设定包括纵轴在内的曲率的特定关系，包括水平轴的曲率和包括玻璃面板内表面的对角轴的曲率，来减小垂直方向上的曲率，同时基本上抑制色移。 构成：假设屏幕部分的垂直轴方向（1-2v）的面板曲率为（Rp-v），则对角轴方向（1-2D）的屏幕部分的面板曲率为（Rp-D）， 水平轴方向（1-2H）的屏幕部分为（Rp-H），其面板曲率的关系为（Rp-v）<（Rp-H）<（Rp-H） D）。 因此，作为前一掩模的主要因素的垂直轴方向上的有效部分的掩模曲率（Rm-v）可以接近于掩模曲率（Rm-H）和（Rm-D） 横轴方向或对角轴方向。 对于使用这样的荫罩的彩色显像管，与以往的情况相比，显着地减少了由于电子束的拍摄碰撞引起的荫罩有效部分的热膨胀所引起的掩模隆起量。

公开(公告)号：JPH05198276A

公开(公告)日：1993-08-06

申请号：JP809792

申请日：1992-01-21

Applicant: TOSHIBA CORP ,  TOSHIBA ELECTRONIC ENG

Inventor： NAKAMURA MICHIO ,  SONE TOSHIHISA ,  OHAMA SHINJI ,  SHOJI HITOSHI

IPC: H01J9/26 ,  H01J29/86

Abstract: PURPOSE:To prevent the crack of an envelope, and improve the resistance capability thereof against implosion and voltage. CONSTITUTION:In a cathode-ray tube where a sealing material 9 is applied to a gap between the sealing side 26 of a panel 21 having a fluorescent screen 2 formed on the internal surface thereof, and the sealing side 29 of a funnel 22, and the panel 21 and the funnel 22 are thereby jointed to each other, a plurality of projected sections 28 are formed on the sealing side 26 of the panel 21, while recessed sections 30 for receiving the sections 28 are formed on the sealing side 29 of the funnel 22. Also, as a method for manufacturing a cathode- ray tube, the fluorescent screen 2 is formed on the internal surface of the panel 21 and, then, the top of the sections 28 is polished. Thereafter, the panel 21 with the top of the sections 28 polished and the funnel 22 are jointed to each other.

公开(公告)号：JPH02201848A

公开(公告)日：1990-08-10

申请号：JP2056089

申请日：1989-01-30

Applicant: TOSHIBA CORP

Inventor： TAKAHASHI TORU ,  TOKITA KIYOSHI ,  KOBAYASHI KAZUFUMI ,  SONE TOSHIHISA

IPC: H01J29/50 ,  H01J29/51

Abstract: PURPOSE:To improve the focus characteristic by forming a second magnetic field controlling element in such a manner that it surrounds the passing region of the center beam and the side surface thereof facing each side beam in a concave shape. CONSTITUTION:A second magnetic field controlling element 21 is mounted surrounding each center beam passing hole 24 in three adjacent cup-shaped electrodes of cylindrical electrodes 22a, 22b consisting a fifth grid G5. This second magnetic field controlling element 21b is formed generally in a rectangular annular shape whose side surfaces facing side beam passing holes 24B, 24R are concave. Thus, the raster of the side beams 5B, 5R and the raster of the center beam 5G can be brought in good alignment all over the picture plane. Further, the spot-shape distortion of a pair of side beams 5B, 5R at the ends of vertical axis of the picture plane can be corrected, and the focus characteristic at the peripheral part of the picture plane can be improved.

公开(公告)号：JPH02126539A

公开(公告)日：1990-05-15

申请号：JP15697388

申请日：1988-06-27

Applicant: TOSHIBA CORP

Inventor： TAKAHASHI TORU ,  NAKAMURA MICHIO ,  SONE TOSHIHISA

IPC: H01J29/76

Abstract: PURPOSE:To have stable operation by arranging a deflection apparatus as an extended line connecting an end portion of a first coupling section of tube-axis side and another end portion thereof a second coupling section side to each other is inclined to a center axis of the deflection apparatus to prevent degradation of the characteristics caused by the deflection apparatus provided with magnetic compensation element and reliability. CONSTITUTION:A deflection apparatus is configured as an extended line connecting an end portion of a first coupling section 32, which stands up at a specific angle from a magnetic coupling section 31 magnetically coupled to a leaked magnetic field from a vertical deflection coil 14 of a magnetic compensation element 30, of tube-axis side and another end portion of the section 32 at a second coupling section 33 side, which extends in the direction of a fluorescent screen along with the tube-axis, is inclined to a center line of a deflection apparatus. Accordingly, the first coupling section 32 does not cross leaked magnetic field from a horizontal deflection coil 13. Therefore, an eddy current produced in the first coupling section 32 due to leaked magnetic field from the horizontal deflection coil 13 at its end portion of a fluorescent screen side is made less. This results in heat generated in the magnetic compensation element 30 less. Thus, the deflection apparatus is stably operated without much affect of heat and degradation of its characteristics.

公开(公告)号：JPH0254835A

公开(公告)日：1990-02-23

申请号：JP20531388

申请日：1988-08-18

Applicant: TOSHIBA CORP

Inventor： TOKITA KIYOSHI ,  SONE TOSHIHISA ,  NAKAMURA MICHIO

IPC: H01J29/02

Abstract: PURPOSE:To improve the lightweight feature and shock resistance of a mask frame, increase the thickness of a shield body, and improve the magnetic shield effect by supporting a shadow mask and the inner magnetic shield body with separate means. CONSTITUTION:Elastic supporters 24 are fixed at four corners of the frame 23 of a shadow mask 20, stud pins 25 are fixed at corner sections of the skirt 1 of a panel in response to them, and the mask 20 is supported on the panel 2. On the other hand, a magnetic shield body 21 is cone-shaped and has notches to evade the supporters 24, elastic supporters 32 are fixed at the center of each side of a large-diameter section 32, pins 33 are provided for the supporters 32 on each side of the skirt 1 of the panel 2, and the large-diameter side is supported to cover the outside face of the frame 23. The supporter 32 is bent and formed with a stationary section 27, an elastic deformation section 29 and a coupling section 28, and a coupling hole for the pin 33 is provided on the coupling section 28. The mask frame 23 is made of a thin plate and the shadow mask 20 can be made lightweight according to this constitution, and the shield body 21 is made thick and the magnetic shield effect can be improved.

公开(公告)号：JPS6454645A

公开(公告)日：1989-03-02

申请号：JP21028787

申请日：1987-08-26

Applicant: TOSHIBA CORP

Inventor： INOUE MASACHIKA ,  TOKITA KIYOSHI ,  SONE TOSHIHISA

IPC: H01J29/86 ,  H01J29/07

Abstract: PURPOSE:To check any thermal deformation in a shadow mask by making the major axial radius of curvature on an effective curved surface smaller in a side in and around a minor axis effective diameter end than the central part and making the diagonal axial end vicinity larger than the major axis effective diameter end vicinity. CONSTITUTION:A shadow mask 36 tructure 32 consists of a rectangular mask frame 34 and a curved shadow mask provided with a lot of through holes, and these through holes are formed in a rectangular area 33 with a slit along a Y-axis direction in response to stripes of a fluorescent screen 30, and this area 33 serves as an effective area for image projection. With the center O of an effective curved surface as a reference point, a major axis is set to an X-axis, a minor axis to a Y-axis and the center axis to a Z-axis, respectively. An X-axial radius of curvature in the minor axis effective diameter end vicinity is made smaller than an X-axial radius of curvature in and around the central part of the effective surved surface, and an X-axial radius of curvature in and around the diagonal effective diameter end is made larger than the X-axial radius of curvature in and around the major axis effective diameter end. Thus, thermal deformation in the shadow mask is checkable.

公开(公告)号：JPS62126526A

公开(公告)日：1987-06-08

申请号：JP26601585

申请日：1985-11-28

Applicant: TOSHIBA CORP

Inventor： KIDA KINJI ,  NAKANE KAZUNORI ,  SONE TOSHIHISA

IPC: H01J29/07

Abstract: PURPOSE:To improve a color purity characteristic at the time of partial doming as keeping the color purity characteristic at a steady state, by setting a beam spot pitch to be larger than a stripe pitch, in case of an ordinary temperature state of a shadow mask. CONSTITUTION:At the time of ordinary temperature in a shadow mask of a color picture tube, a distance PB2 from the center of a spot 24' to be situated in the center of electron beam spots 23'-25' to be projected to a phosphor screen to the center of the spot 23' is set to be larger than a distance Ps from the center of a phosphor 21 to be situated in the center of another phosphor 20 to be situated at the side. And, when the shadow mask causes doming, the beam pitch PB2' is made so as to be nearly equal to the strip pitch Ps. Therefore, even any case at the time of the steady state and partial doming, a color purity characteristic is favorably keepable.

公开(公告)号：JPS622430A

公开(公告)日：1987-01-08

申请号：JP13895085

申请日：1985-06-27

Applicant: TOSHIBA CORP

Inventor： SONE TOSHIHISA ,  NAKANE KAZUNORI ,  MURAI RYUICHI ,  URATA HIROSHI

IPC: H01J29/02 ,  H01J29/07 ,  H01J31/20

Abstract: PURPOSE:To constantly produce good beam landing of a color cathode-ray tube by using a spring which consists of a support having a hole connected to the stud pin of the panel and a plate facing toward the frame. CONSTITUTION:A spring 30 consists of two stainless steel members 31 and 32. The first stainless steel member 31 consists of a fixation section 311 parallel to the outer wall surface of a mask frame 19, a slant section 312 continuous with the section 311 and a support section 313 having a support hole 34 connected to a stud pin 22. The second stainless steel member 32 consisting of a plate faces toward the frame 19. One end of the member 32 is fixed to the section 311 of the member 31 by welding and the member 32 is welded and fixed to the circumference wall of the frame 19 at several spots. Due to the above structure of the spring 30, a color cathode-ray tube equipped with the spring 30 receives only a little permanent deformation during attachment or detachment and during application of external shock and good beam landing is constantly maintained.

公开(公告)号：JPS59207542A

公开(公告)日：1984-11-24

申请号：JP8013083

申请日：1983-05-10

Applicant: Toshiba Corp

Inventor： TOKITA KIYOSHI ,  SONE TOSHIHISA ,  KIDA KINJI

IPC: H01J29/07

CPC classification number: H01J29/07 ,  H01J2229/0722

Abstract: PURPOSE:To reduce a temperature difference between the center and periphery of mask body and suppress doming by providing a heat reflecting layer on the surface of the area where the body of shadow mask of cathode ray tube and the frame are mutually facing. CONSTITUTION:The shadow mask of a cathode ray tube is formed by welding a mask body 15 consisting of the effective surface provided with many through holes 10 and a skirt area 18 provided in the periphery thereof to a frame 17 where a heat reflecting layer 20 consisting of the nickel plated layer in the thickness of 10-20mum is provided on the internal surface 17a and external surface 17b facing to the periphery 15a which has almost the L-shaped section and includes the skirt area 18 of mask body 15. Accordingly, when the shadow mask is heated through collision of electron beam, heat radiation to the frame 17 is reduced and thereby temperature difference between the center and periphery of the mask body 15 can be reduced and doming can also be eased and color shift be prevented.

Abstract translation: 目的：通过在阴极射线管和框架的荫罩体相互面对的区域的表面上设置热反射层，来降低面罩主体的中心与周围的温度差，抑制穹隆。 构成：阴极射线管的荫罩是通过将由设置有多个通孔10的有效表面和设置在其周边的裙部区域18组成的掩模体15焊接到框架17而形成的，其中，热反射层20 的厚度为10-20μm的镀镍层设置在内表面17a和面向具有几乎为L形截面的周边15a的外表面17b上，并且包括荫罩主体15的裙部区域18.因此，当 阴影掩模通过电子束的碰撞而被加热，对框架17的热辐射减少，从而可以减小掩模体15的中心和周边之间的温度差，并且还可以缓和穹顶，并且防止色移。

公开(公告)号：JPS59165349A

公开(公告)日：1984-09-18

申请号：JP3743683

申请日：1983-03-09

Applicant: Toshiba Corp

Inventor： TOKITA KIYOSHI ,  SONE TOSHIHISA ,  NAKAMURA MICHIO

IPC: H01J29/24 ,  H01J29/86

CPC classification number: H01J29/861 ,  H01J2229/862

Abstract: PURPOSE:To obtain a cathode-ray excellent in mechanical strength by providing the specific relations respectively in height of the skirt part of the end part forming substantially a rectangular frame of the glass panel face part and in thickness among the vertical axis direction, horizontal axis direction and diagonal axis direction near the rectangular frame. CONSTITUTION:The height of the skirt parts in the respective axial directions of the face part, CHV, CHH and CHD as well as the thickness tv, tH and tD near the rectangular frames in the respective axial directions of the face part are so constituted as to have the relations CHV =tH>= tD. In order to constitute the height of the skirt parts in the respective directions of the glass panel and the thickness near the rectangular frames in the respective directions of the face part in this way, it is effective to make the outer surface radiuses of curvature Rv, RH and RD as well as the inner surface radiuses of curvature R'v, R'H and R'D in the respective directions of the face plate to be Rv

Abstract translation: 目的：为了获得机械强度优异的阴极射线，通过分别提供形成玻璃面板部分的大致矩形框架的端部的裙部的高度和垂直轴方向之间的厚度的特定关系 方向和对角轴方向靠近矩形框架。 构成：面部的各个轴向的裙部的高度，CHV，CHH，CHD以及面部的各轴方向上的矩形框架附近的厚度tv，tH，tD的高度构成为 具有CHV <= CHH <= CHD，进一步tv> = tH> = tD的关系。 为了以这种方式构成玻璃面板的各个方向上的裙部的高度和矩形框架在面部的各个方向附近的厚度，可以使外表面的曲率半径Rv， RH和RD以及面板的各个方向上的曲面R'v，R'H和R'D的内表面半径Rv