公开(公告)号：JPS62217544A

公开(公告)日：1987-09-25

申请号：JP5950986

申请日：1986-03-19

Applicant: TOSHIBA CORP

Inventor： TOKITA KIYOSHI ,  KIDA KINJI ,  NAKAMURA MICHIO

IPC: H01J29/76

Abstract: PURPOSE:To suppress temperature rise of a magnetic material by providing a coating having a larger thermal radiation rate than the magnetic material on the surface of the magnetic material consisting a deflection device. CONSTITUTION:A magnetic piece 50 consists, for example, of a silicone steel plate and on the surface of said silicone steel plate a ceramic layer 10 is formed. Said ceramic layer is formed by a method wherein suspension of silicon containing zirconium (ZrSiO4) and an alkoxide compound of zirconium, for example, ZrSi(OC4H9)4 is applied as a filler by a spraying method to form an about 10mum thick coating followed by heat treatment. Thereby, temperature rise of a magnetic material can be suppressed.

公开(公告)号：JPH01117245A

公开(公告)日：1989-05-10

申请号：JP27307487

申请日：1987-10-30

Applicant: TOSHIBA CORP

Inventor： KIDA KINJI ,  KOBAYASHI KAZUFUMI

IPC: H01J9/14 ,  H01J29/07

Abstract: PURPOSE:To prevent the vibration of a shadow mask and ensure the easy assembly thereof by changing the relative position of a shadow mask skirt part and a mask frame for the support thereof between the long and short sides of the shadow mask. CONSTITUTION:The skirt part 7b of a shadow mask 7 is supported with and fixed to a mask frame 8. The skirt part 7b is so fixed as to be outside the mask frame 8 at the long side and corner of the shadow mask 7. Also, the skirt part 7b is so fixed as to be inside the mask frame 8 at the short side of the shadow mask 7. According to the aforesaid construction, the skirt part 7b at the short side is subjected to stress 17 in an inward direction and the main plane 7a of the shadow mask 7 is subjected to stress in an outward direction. Consequently, the shape maintenance capability of the shadow mask 7 is increased and the shadow mask 7 is always maintained at a constant shape. Also, the joints of the skirt part 7b and the mask frame 8 can be easily worked.

公开(公告)号：JPH01117242A

公开(公告)日：1989-05-10

申请号：JP27307587

申请日：1987-10-30

Applicant: TOSHIBA CORP

Inventor： KOBAYASHI KAZUFUMI ,  KIDA KINJI

IPC: H01J29/02 ,  H01J31/20

Abstract: PURPOSE:To stabilize the holding status of a shadow mask by forming a spring member for hooking the shadow mask to a stud pin, using two members, and connecting both members to each other for such construction as preventing the inter-torsion thereof. CONSTITUTION:A shadow mast 18 is fitted in such a way that a spring member 50 is fixed to a frame 19 forming a part of the shadow mask 18 and the support hole 54 of the spring member 50 is hooked to a stud pin 22. The spring member 50 comprises two members 51 and 52, while the member 52 is welded to the frame 19 and the member 51 is welded to the member 52. This member 52 has a support hole 54. If the member 52 is bent toward the axial direction of the stud pin 22 at the time of mounting the shadow mask 18, no permanent deformation takes place as the member 52 is bent together. A cut erection part 521 is formed on the member 52 and keeps a gap of about 0.5mm from the support side 514 of the member 51, thereby minimizing the torsion of both members 51 and 52. According to the aforesaid construction, the deformation of the spring member 50 is prevented and the shadow mask 18 is properly retained.

公开(公告)号：JPS62278738A

公开(公告)日：1987-12-03

申请号：JP12115786

申请日：1986-05-28

Applicant: TOSHIBA CORP

Inventor： TOKITA KIYOSHI ,  KIDA KINJI

IPC: H01J29/07

Abstract: PURPOSE:To make temperature during operation of a frame restrainable, by making a heat radiation rate of the mask frame large than that in the same temperature of a shadow mask. CONSTITUTION:At a position proximately opposed to a phosphor screen 4, plural slitlike openings, being supported of their peripheral parts by a mask frame consisting of iron material and about 1.2 X 10 deg in its thermal expansion coefficient, are disposed in a vertical direction. Likewise, a lot of shadow masks 5 disposed in a horizontal direction are supported via elastic members 12. This shadow mask 5 is composed of a 36% Ni-Fe alloy, namely, a so-called fan bar material as in 1.2X 10 deg smaller as compared with the iron material. With this constitution, any partial deformation in the shadow mask 5 during operation by a thermal expansion difference between the shadow mask 5 and the mask frame 7 can be prevented.

公开(公告)号：JPS62217545A

公开(公告)日：1987-09-25

申请号：JP5951086

申请日：1986-03-19

Applicant: TOSHIBA CORP

Inventor： TOKITA KIYOSHI ,  KIDA KINJI ,  NAKAMURA MICHIO

IPC: H01J29/76

Abstract: PURPOSE:To suppress temperature rise of a magnetic material by forming a coating having larger thermal conductivity than a magnetic piece on the surface of the magnetic material composing a deflection device. CONSTITUTION:A magnetic piece 50 consists, for example, of a silicon steel plate and on the surface of said silicon steel plate a ceramic layer 10 is formed. Said ceramic layer is made by a method wherein suspension of silicon containing silicon carbide (SiC) and an alkoxide compound of zirconium, for example, ZrSi(OC4H9)4 is applied as a filler by a spraying method to form an about 10mum thick coating followed by heat treatment. Thereby, temperature rise of a magnetic material can be suppressed.

公开(公告)号：JPS58220339A

公开(公告)日：1983-12-21

申请号：JP10302282

申请日：1982-06-17

Applicant: Toshiba Corp

Inventor： NAKAMURA MICHIO ,  KIDA KINJI

IPC: H01J29/51 ,  H01J29/70

CPC classification number: H01J29/707

Abstract: PURPOSE:To obtain a convergence-free color picture tube having excellent resolution on the entire part by improving shape of electron beam spot in the periphery of displayed picture through application of deflected field control element. CONSTITUTION:The electron beam releasing pores 5, 6, and 7 are arranged in line, and a pair of deflected field control elements 9a, 9b are provided to the center beam releasing pore 6, while a pair of deflected field control elements 8a, 8b and 10a, 10b are respectively provided to the beam releasing pores 5 and 7 in both sides. These deflected field control elements are arranged in both sides of the electron beam releasing pores in such a manner that the interval (Go) on the in-line arranging axis (X axis) or the line connecting the electron beam releasing pores in the interval opposing in the in-line arranging direction becomes maximum as compared with the interval at the other portion. The opposing area of field control element is formed in such a way as corresponding to the outline of circular electron beam releasing pores, namely to a circle. Therefore, in regard to the interval of the deflected field control elements opposing each other in both sides of the electron beam releasing pores, the minimum part is considered as (GE) while the maximum part as (GO).

Abstract translation: 目的：通过应用偏转场控制元件，通过改善显示图像周围的电子束点的形状，获得整体上具有优异分辨率的无收敛彩色显像管。 构成：电子束释放孔5,6和7排成一列，并且一对偏转场控制元件9a，9b设置在中心束释放孔6上，而一对偏转场控制元件8a，8b 10a，10b分别设置在两侧的光束释放孔5和7上。 这些偏转场控制元件被布置在电子束释放孔的两侧，使得在直线排列轴线（X轴）上的间隔（Go）或连接电子束释放孔的间隔相对 与其他部分的间隔相比，在线排列方向变为最大。 场控制元件的相对区域以与圆形电子束释放孔的轮廓相对应的方式形成，即形成为圆形。 因此，关于在电子束释放孔的两侧彼此相对的偏转场控制元件的间隔，最小部分被认为是（GE），而最大部分被认为是（GO）。

公开(公告)号：JPS63131442A

公开(公告)日：1988-06-03

申请号：JP27664186

申请日：1986-11-21

Applicant: TOSHIBA CORP

Inventor： KIDA KINJI

IPC: H01J29/07 ,  H01J29/81

Abstract: PURPOSE:To sufficiently suppress mis-landing over the whole effective screen by providing an electron absorbing layer charged negatively in response to the electron current density and deflecting and focusing electron beams. CONSTITUTION:An electron absorbing layer 31 charged negatively in response to the electron current density is provided. An electron beam 20c passing near the left side of a through hole 27 is deflected in the direction apart from a tube axis 47 by negative electric charges charged on the surface of the center side wall, and an electron beam 21c passing near the right side of the through hole 27 is deflected in the direction near to the tube axis 47 by negative electric charges charged on the surface of the opposite side wall. Thereby, beams can be focused on a screen 14. Therefore, the landing point 42a of the electron beam tending to move to the tube axis 47 from the predetermined landing point 42 due to a doming phenomenon is again returned to the original landing point 42 by the offset action. Accordingly, the mis-landing of electron beams can be suppressed and decreased even if the doming phenomenon occurs.

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：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：JPS59191235A

公开(公告)日：1984-10-30

申请号：JP6525483

申请日：1983-04-15

Applicant: Toshiba Corp

Inventor： KIDA KINJI

IPC: H01J29/07 ,  H01J29/06

CPC classification number: H01J29/06

Abstract: PURPOSE:To suppress deterioration of color purity by providing on the electron gun side from the shadow mask for color separation, a shielding mask having horizontal continuous slit without any break in order to shield the electron beam. CONSTITUTION:A shielding mask 8 consisting of long lateral slits having no break in horizontal direction is provided on the bottom surface of a mask frame 7. And for example, the vertical width LC of the shielding part 12 is substantially equal to the bridge 15 width LB connecting the vertical arrangement of slit holes 14 of the shadow mask 5, and shielding part 12 is disposed so as to overlap the bridge 15 of the slit holes 14. Such a shielding mask 8 is installed either by winding a stretched metal wire of large tensile force around a frame facing the bottom surface of the mask frame 7 or by inserting it into the clearance of the frame. Or it is possible to form the mask by etching from a metal plate. Accordingly, the shadow mask shooting rate by the electron beam is decreased and lowering of the color purity by doming can be suppressed effectively.

Abstract translation: 目的：为了通过在电子枪侧设置用于分色的荫罩来抑制色纯度的劣化，所述遮蔽掩模具有水平连续狭缝而不会断裂以屏蔽电子束。 构成：在荫罩框架7的底面上设置有由水平方向没有断裂的长横向狭缝构成的屏蔽罩8.例如，屏蔽部12的垂直宽度LC基本上等于桥15的宽度 连接阴影掩模5的狭缝孔14的垂直布置的LB和屏蔽部分12设置成与狭缝孔14的桥15重叠。这样的屏蔽掩模8可以通过缠绕大的拉伸金属线 围绕面向荫罩框架7的底面的框架的张力或通过将其插入框架的间隙中。 或者可以通过从金属板蚀刻来形成掩模。 因此，通过电子束的阴影掩模拍摄速度降低，并且可以有效地抑制通过拱起降低色纯度。