专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明专利

JPH10321154A COLOR PICTURE TUBE 失效
公开(公告)号：JPH10321154A
公开(公告)日：1998-12-04
申请号：JP12973397
申请日：1997-05-20
申请人： TOSHIBA CORP
发明人： TSUCHIDA SHIGERU , INOUE MASACHIKA
IPC分类号： H01J29/07 , H01J31/20
摘要： PROBLEM TO BE SOLVED: To provide a color picture tube hardly allowing the occurrence of color purity deterioration by allowing no deformation at a mask main body formation time, and combining the mask main body and a mask frame with high precision and with ease. SOLUTION: This color picture tube is equipped with a substantially rectangular shadow mask made of a mask main body 22 and a mask frame fixed onto its periphery portion 23. The mask main body is a bending face plate having no skirt portion of its periphery portion, and the long side end edge 25 of the mask frame is formed into the same curvature as the curvature of the mask main body long side portion. In the shadow mask the short side of the mask main body is fixed by the fixing piece 27 provided on the short side of the mask frame, and the long side is directly welding fixed to the long side end edge of the mask frame.

12. 发明专利

JPH10199436A COLOR PICTURE TUBE AND MANUFACTURE THEREFOR 失效
公开(公告)号：JPH10199436A
公开(公告)日：1998-07-31
申请号：JP363297
申请日：1997-01-13
申请人： TOSHIBA CORP
发明人： OHAMA SHINJI , SHIMIZU NORIO , NAKAGAWA SHINICHIRO , INOUE MASACHIKA
IPC分类号： H01J9/14 , H01J29/07 , H01J31/20
摘要： PROBLEM TO BE SOLVED: To provide a color picture tube having sufficient curved surface holding strength even if a shadow mask is flattened, and a manufacturing method therefor. SOLUTION: In this color picture tube, a substantially rectangular shadow mask is arranged on the inside of a panel having a substantially rectangular effective part, and this shadow mask comprises a substantially rectangular frame and a substantially rectangular mask body where a large number of electron beam passing holes are formed in an effective surface composed of a curved surface opposed to the effective part and a peripheral part of this effective surface is fixed to the frame. In this case, the effective surface 23 of the mask body 21 is formed in a cylindrical curved surface on which a radius of curvature in the major axis direction is set almost infinite and a radius of curvature in the minor axis direction is set almost constant.

13. 发明专利

JPH09102288A DEFLECTOR 失效
公开(公告)号：JPH09102288A
公开(公告)日：1997-04-15
申请号：JP25975295
申请日：1995-10-06
申请人： TOSHIBA CORP
发明人： TSUCHIDA SHIGERU , INOUE MASACHIKA
IPC分类号： H01J29/76
摘要： PROBLEM TO BE SOLVED: To improve the focus property of the peripheries of both sides of a self convergence inline type color picture tube. SOLUTION: This deflector has a saddle-type deflecting coil 21 which generates a pin cushion type deflecting magnetic field for deflecting a plurality of beams arranged in a row passing the same plane in the direction of its deflection. Moreover, outside the crossover at the front end of the deflecting coil are provided at least a pair of additional coils 28, which are constituted by winding coils 30, where currents reverse to the deflecting currents flowing to this deflecting coil, synchronizing with the deflection of a plurality of beams by this deflecting coil, flow, around magnetic cores 31.

14. 发明专利

JPH08162034A COLOR PICTURE TUBE 失效
公开(公告)号：JPH08162034A
公开(公告)日：1996-06-21
申请号：JP25239295
申请日：1995-09-29
申请人： TOSHIBA CORP
发明人： SHIMIZU NORIO , OHAMA SHINJI , INOUE MASACHIKA
IPC分类号： H01J29/07
摘要： PURPOSE: To improve color purity of the color picture tube provided with a shadow mask of which a substantially rectangular shaped effective surface is made of a curved surface and constituting an electron beam passing pore column in which the electron beam passing pores on the effective surface extend in column along the short axis of the effective surface by specifying the tilt of the electron beam passing pores. CONSTITUTION: An electron beam passing pore column 42 is bent to different shapes depending upon the position on an effective surface 34, and an electron beam passing pore 41 is tilted along the electron beam passing column pore 42. In an area where the till on the long side of an effective surface 34 of this electron beam passing pore 41 is pinched by means of the short side of the effective surface 34 and a point 1/4 inside of the dimensions between short sides from this short side, the electron beam passing pore 41 end part of the lon side is tilted the maximum in the positive direction closer to the short-axis direction of the effective surface 34 than the opposite side end part, and in the 1/3 inside of the dimensions between short sides from the long side, the tilt increases as the distance from the short axis of the effective surface 34s increases, and the tilt decreases or is inverted as it approaches to the short side so as to have the minimum value.

15. 发明专利

JPH0864146A COLOR PICTURE-TUBE 失效
公开(公告)号：JPH0864146A
公开(公告)日：1996-03-08
申请号：JP19841594
申请日：1994-08-23
申请人： TOSHIBA CORP
发明人： TANI MUNECHIKA , MURAI TAKASHI , INOUE MASACHIKA
IPC分类号： H01J29/07
摘要： PURPOSE: To restrict the local thermal expansion by setting a difference between the outer diameter of a mask main body and the inner diameter of a mask frame in the long edge side of a shadow mask larger than the difference thereof in the short edge side of the shadow mask. CONSTITUTION: A shadow mask 24 of a color picture-tube is formed so that the outer diameters of the long edge side and the sort edge side of a mask main body 35 are formed smaller than the inner diameters of the long edge side and the short edge side of a mask frame 25 except for welding parts of the mask main body 35 and the mask frame 25. A difference Δsy between the outer diameter in the long edge side of the main body 35 and the inner diameter in the short edge side of the frame 25 is formed larger in average than a difference Δsx between the outer diameter in the short edge side of the main body 35 and the inner diameter in the short edge side of the frame 25. In the case where an image at a high luminance is locally displayed for a short time, even in the case where the main body 35 is expanded and the stress is generated in the main body 35, a large stress to be generated in the long edge side of the main body 35 can be restricted because the angle of deflection of the electron beam at a central part of the main body 35 is small and displacement of the beam landing is small, and because the peripheral part is welded to the frame 25 and thermal expansion of the main body 35 is restricted.

16. 发明专利

JPH05211044A COLOR PICTURE TUBE 失效
公开(公告)号：JPH05211044A
公开(公告)日：1993-08-20
申请号：JP1569292
申请日：1992-01-31
申请人： TOSHIBA CORP
发明人： TAKAHASHI TORU , AKOU NOBUHIKO , SHIMIZU NORIO , INOUE MASACHIKA
IPC分类号： H01J29/02 , H01J31/20
摘要： PURPOSE:To attach and detach a shadow mask easily. CONSTITUTION:In a color picture tube, a shadow mask is supported on the inner side of a panel 21 attachably and dettachably with stud pins 31 provided on the panel and holders 32 attached to a mask frame 30 and fitted in respective stud pins, and the holder consists of a fixing portion 34 to be fixed to the mask frame and a supporting portion 36 to be fitted in the stud pin and an elastic deformable portion 37 connecting the fixing portion to the supporting portion. An auxiliary portion 38 for attachment and detachment is provided on the supporting portion of at least one of the holders at a position nearer to the mask frame than the supporting portion of the holder.

17. 发明专利

JPH0278138A COLOR TELEVISION PICTURE TUBE AND DEFLECTION DEVICE 失效
公开(公告)号：JPH0278138A
公开(公告)日：1990-03-19
申请号：JP9022189
申请日：1989-04-10
申请人： TOSHIBA CORP
发明人： FUJIWARA TAKESHI , TOKITA KIYOSHI , INOUE MASACHIKA
IPC分类号： H01J29/51 , H01J29/76
摘要： PURPOSE:To decrease deflecting aberration so as to prevent deterioration of focusing properties in the periphery of a picture by placing permanent magnets on the way of three electron beam routes. CONSTITUTION:While their polarity being set to be in reverse, a pair of permanent magnets 28a, 28b having magnetic polar in the both ends are placed up and down-sides of a side end 27 of an electron gun composing body of a deflecting apparatus 21. By setting like this, the magnets 28a, 28b, corresponding to a barrel type perpendicularly deflecting magnetic field 42, form an intensive pin cushion type magnetic field 43 in an area three electron beams (B), (G), (R) passing. Formation of an ellipse having the major axis in horizontal direction of a beam spot depending on the magnetic field 42 and declining phenomenon of spots of a pair of side beams are corrected. Besides, correction corresponding to deflecting current of an apparatus is carried out by a magnetic field correcting device installed in the bottom of a convergence cup. Lorentz effect of moving side beams (B), (R) toward center beam (G) is caused by the magnetic field 43.

18. 发明专利

JPH0249331A MANUFACTURE OF COLOR IMAGE RECEIVING TUBE 失效
公开(公告)号：JPH0249331A
公开(公告)日：1990-02-19
申请号：JP20061188
申请日：1988-08-11
申请人： TOSHIBA CORP
发明人： MURAI TAKASHI , TOKITA KIYOSHI , INOUE MASACHIKA , FUJIWARA TAKESHI
IPC分类号： H01J9/42 , H01J9/14
摘要： PURPOSE:To enable the preliminary detection of the vibration resistance strength of a shadow mask by applying an alternate current magnetic field for excitation between processes for forming a mask proper and jointing a panel to a funnel. CONSTITUTION:A shadow mask 4 is mounted at an inspection position and an alternate current exciting current is supplied to an excitation coil 31. The frequency of a magnetic field is thereby varied continuously within a range of 200 to 500Hz and the vibration of each part of the mask 4 is detected via an optical sensor 33. Furthermore, a detected signal obtained from the sensor 33 is operated and processed with an amplitude read device 34, thereby obtaining the maximum amplitude of the mask 4. As the resonance frequency of the shadow mask 4 proper approximately agrees to the frequency wherein an electron beam in a finished color image receiving tube gives a maximum amplitude, the aforesaid method is used to detect and select a resonance point for the case of the mask 4 proper and it becomes thereby possible to eliminate the malfunction of the finished image receiving tube due to a vibration. According to this construction, a loss due to the detection of a defective product after assembly is eliminated and it becomes possible to make efficient inspection.

19. 发明专利

JPH0240842A COLOR PICTURE TUBE DEVICE 失效
公开(公告)号：JPH0240842A
公开(公告)日：1990-02-09
申请号：JP18825288
申请日：1988-07-29
申请人： TOSHIBA CORP
发明人： HIROTA KOJI , INOUE MASACHIKA , AMITSU NOBUHIKO
IPC分类号： H01J29/76
摘要： PURPOSE:To improve the image plane grade by correcting the difference between the action to a pair of side beams and the action to the center beam of a coma correcting magnetic field generated by a pair of auxiliary coils by means of a barrel-form magnetic field formed by a magnetic field forming means. CONSTITUTION:A pair of auxiliary coils 8 generating a magnetic field for correcting a coma caused by the deflection magnetic field of a vertical deflection coil 30, and a magnetic field forming means 34 forming a magnetic field for correcting the action to three electron beams 1a-1c of the coma correcting magnetic field generated by the auxiliary coils 8 are provided. The difference between the action to a pair of side beams 1a, 1c and the action to the center beam 1b of the coma correcting magnetic field generated by the auxiliary coils 8 is corrected by the magnetic field formed by the magnetic field forming means 34. Hence, the three electron beams 1a-1c can be accurately collected over the whole image plane to improve the image plane grade.

20. 发明专利

JPS62223949A COLOR PICTURE TUBE 失效
公开(公告)号：JPS62223949A
公开(公告)日：1987-10-01
申请号：JP6584386
申请日：1986-03-26
申请人： TOSHIBA CORP
发明人： INOUE MASACHIKA , AKOU NOBUHIKO
IPC分类号： H01J29/07
摘要： PURPOSE:To strengthen the spherical surface strength of the peripheral portion of a shadow mask with a pushing pressure caused by the insertion of a projecting part into a frame to prevent the local vibration of the shadow mask by providing the projecting part toward outside on the skirt portion of the shadow mask. CONSTITUTION:A shadow mask assembly for a color picture tube is constructed by inserting the skirt portion 7c of a shadow mask 7 made of a low thermal expansion material such as invar alloy or the like into the inside of a frame 10 and welding them at respective points on the horizontal, vertical and diagonal line. And projecting parts 12 toward outside are provided at least on the short sides of the skirt portion 7c, and the total length of the projecting parts is decided to be 35-85% of that of the short side. Thus when the skirt portion 7c is inserted into the frame 10, by the pushing pressure of the projecting parts 12 the spherical surface strength of the peripheral portion 7b of the shadow mask is increased. Therefore the local vibration of the shadow mask 7 due to the sound signal or the like can be prevented to eliminate the deterioration of the color purity.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式