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1. 发明专利

JP2002313250A COLOR CATHODE-RAY TUBE 审中-公开
公开(公告)号：JP2002313250A
公开(公告)日：2002-10-25
申请号：JP2002060027
申请日：2002-03-06
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUZUKI HIDEO , WATANABE TATSUAKI , IDEMI YOSHIKAZU , YOKOMAKURA MITSUNORI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To provide a color cathode-ray tube in which the vibration of the overall shadow mask can be steadily damped using a simple structure. SOLUTION: The color cathode-ray tube comprises a mask frame 11, formed into a frame shape and a shadow mask 10 in which many slot holes 12 are formed on a flat plate, and the shadow mask 10 is stretched and supported by a mask frame 11, with the tensile force being impressed in one direction, and the amplitude at the end parts of the shadow mask 10 is relatively larger by a certain amount than the amplitude, at the central part due to resonance with the vibration transmitted to the color cathode-ray tube. By installing the vibration damper 13 at the end parts of the shadow mask 10, vibration at the end parts of the shadow mask 10 is damped, while the end face of the shadow mask 10 moves sliding on the vibration damper 13. As a result, the vibration of the overall shadow mask 10 can be steadily damped.

2. 发明专利

JP2001243890A CATHODE-RAY TUBE 失效
公开(公告)号：JP2001243890A
公开(公告)日：2001-09-07
申请号：JP2000053660
申请日：2000-02-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MINO YOSHIMITSU , OKASAKA KEIZO , TSURUHA MASAYUKI , KIKUCHI AKIO , YOKOMAKURA MITSUNORI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To provide a cathode-ray tube wherein vibration caused by external force or the like, doming, and generation of the second collision of an electron with a phosphor screen are securely cut down with a simple structure. SOLUTION: With applied tensile force in the direction of an arrow 'a', the shadow mask 13 is stretched and retained on the upper surface of a connecting member 11. The mask 13 has a plastic deformation area on the surface thereof, wherein a projection 16 is formed by plastic deformation and the cross sectional form thereof is inverted V shape is lateral direction. As a result of this, the rigidity of the mask is improved with simple construction, so that the shadow mask may become difficult to be bent, therefore the amplitude of the vibration caused by external force, etc., is cut down. Furthermore, the surface area of the shadow mask can be enlarged which enables heat radiation efficiency to increase, thermal expansion to decrease, and doming to be cut down. Additionally this enables to prevent generation of the second collision of an electron reflected by the phosphor screen with the phosphor screen.

3. 发明专利

JP2001185048A CATHODE RAY TUBE 失效
公开(公告)号：JP2001185048A
公开(公告)日：2001-07-06
申请号：JP37489899
申请日：1999-12-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OMAE HIDEJI , IDEMI YOSHIKAZU , OZAKI MASAYOSHI , YOKOMAKURA MITSUNORI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To provide a cathode ray tube that enables to suppress both doming amount and moire. stripes generation by forming protrusions within holes, in tension type of shadow mask. SOLUTION: A shadow mask, in which a plurality of holes are formed at a flat panel, is mounted in a state that a tension force is applied in longitudinal direction. Bridges 21 for connecting holes 20 are formed at the shadow mask, and the holes 20. A pair of protrusions 22 are formed at the holes 20 to protrude into the holes 20 from both width direction end of the holes 22. Leading ends of the protrusions 22 are opposed with each other, and tapers widen gradually toward leading end 22d from base end 22c are formed between upper and lower edges 22a, 22b of vertical direction. Therefore, mechanical strength and brightness can be compatible ensured and also doming amount and moire. stripes generation can be suppressed.

4. 发明专利

JPH07105878A FLAT IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH07105878A
公开(公告)日：1995-04-21
申请号：JP24456593
申请日：1993-09-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AONO HIROSHI , YOKOMAKURA MITSUNORI , KATANO KOUJI , WATANABE TATSUAKI
IPC分类号： B23K26/21 , H01J9/02 , H01J9/18 , H01J9/24 , H01J9/26 , H01J29/02 , H01J29/46 , H01J31/12 , B23K26/00
摘要： PURPOSE:To ensure precision, safety, and high performance image quality by absorbing and removing the influence of an internal constituting part by a thermal process in the manufacturing process of a flat image display element. CONSTITUTION:As each constituting part in a vessel, a material having a small thermal expansion coefficient and a close approximation is selected, and welded by the inner wall part of a slit 36 provided on a fixing plate presser spring 38 fitted to the slit 36 provided on an electrode fixing plate 36 with a margin and a fixed base 32. A projection part 42 provided on the end part lower surface of the presser spring 38 is pressed to the tongue piece part of a spring plate 39 fixed on the lower surface of the slit 36 of the presser spring 38 to be partially exposed in a tongue piece form, and the fixed base 32 and an electrode fixing plate 34 are elastically held. The center part of the electrode support plate 34 is fixed lower than both the end parts to provide a gap with an electrode unit, and the influence of the thermal process evacuation distortion of a back vessel 10 is absorbed.

5. 发明专利

JPH0578987B2 失效
公开(公告)号：JPH0578987B2
公开(公告)日：1993-10-29
申请号：JP8490485
申请日：1985-04-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KURATA TAKATSUGU , YOKOMAKURA MITSUNORI , MURAKISHI ISAO , SEKIHARA TOSHINOBU , UEDA MINORU
IPC分类号： H04N9/22 , H01J31/12 , H04N5/68

6. 发明专利

JPH05182611A IMAGE DISPLAY ELEMENT 失效
公开(公告)号：JPH05182611A
公开(公告)日：1993-07-23
申请号：JP130792
申请日：1992-01-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KURATA TAKATSUGU , SEKIGUCHI TOMOHIRO , YOKOMAKURA MITSUNORI
IPC分类号： H01J29/46 , H01J31/12
摘要： PURPOSE:To reduce the influence of the fluctuation of the sensitivity of a second vertical deflection electrode on the vertical position of a beam, and improve the evenness of image quality even if the fluctuation is generated in the sensitivity of the second vertical deflection electrode by using two vertical deflecting electrodes. CONSTITUTION:An electrode group 57 has electron beam passing holes 59 and slits 60 at positions respectively opposite to multiple linear cathodes 52, and the passing quantity of the electron beam from the linear cathodes 52 is controlled by a control electrode 54 in response to the image signal, and is deflected to the vertical direction at multiple stages by a vertical deflection electrode 56. An electrode group 64 has electron passing holes 65 and slits 66 at positions respectively opposite to each deflected beam position, and each deflected beam is deflected horizontally by a horizontal deflection electrode 62, and thereafter, the deflected beam is deflected furthermore to the vertical direction at multiple stages by a vertical deflection electrode 63. An image can be thereby displayed on a screen as a whole.

7. 发明专利

JPH0388245A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH0388245A
公开(公告)日：1991-04-12
申请号：JP22356689
申请日：1989-08-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIGETA TOSHIO , YOKOMAKURA MITSUNORI , KURODA HARUO , OKAUCHI TORU , FURUWARI KAZUYA
IPC分类号： H01J29/92 , H01J31/12
摘要： PURPOSE:To loosen a deformation stress of a back surface metal container at the time of vacuum and prevent microcracks generated at glass frit to be causes of vacuum leak by installing at least a linear cathode terminal to the back surface metal container from the inner side of the container. CONSTITUTION:A linear cathode terminal 2 is integrated with a linear cathode terminal seat 3 to secure the position precision in installing the terminal, and achieve a good insulation to a back surface metal container 1. This gas-tight terminal is installed to the back surface metal container 1 from the inner side of a space formed by a front glass container and the back surface metal container 1. A deformation stress of the back surface metal container 1 when the inside of the container is vacuum is loosened, and production of microcracks to glass frit 5 is prevented, thereby a preferably vacuum degree can be maintained.

8. 发明专利

JPH0349138A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH0349138A
公开(公告)日：1991-03-01
申请号：JP18551089
申请日：1989-07-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KURODA HARUO , YOKOMAKURA MITSUNORI , OKAUCHI TORU , FURUKATSU KAZUYA
IPC分类号： H01J31/12
摘要： PURPOSE:To prevent the deformation of a back electrode and obtain a stable image with high quality by fitting and fixing linear cathodes to external connecting terminals fitted to a back container directly or via linear cathode suspending springs. CONSTITUTION:Linear cathodes 2a-2d are regulated in height by a height regulating bar 26 and positioned by a Y-direction positioning frame 27. Individual linear cathodes 2a-1d are applied with tension by linear cathode springs 28 and suspended. Springs 28 are not fixed to the frame 27 and directly fitted and fixed to external terminals 29. The tension of linear cathodes 2a-2d is not transmitted to a back electrode 1, thus the electrode 1 is not deformed, the space distance between linear electrodes 2a-2d and the beck electrode 1 and tension of linear electrodes 2a-2d are kept constant, and a stable image with high quality is obtained.

9. 发明专利

JPH02295035A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH02295035A
公开(公告)日：1990-12-05
申请号：JP11534589
申请日：1989-05-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IMAI KANJI , AONO HIROSHI , YOKOMAKURA MITSUNORI , OSADA KEIJI
IPC分类号： H01J31/12
摘要： PURPOSE:To stop vibration of linear cathodes and also prevent rings from invading the inside of an effective screen so as to obtain a stable image by providing rack bodies which have slits for passing the linear cathodes. CONSTITUTION:One or plural rings 31a-31d are installed at both end portions of linear cathodes 30a-30d by passing the linear cathodes through respective rings, and also rack bodies 32a, 32b provided with slits are provided in such a manner as being perpendicular to the linear cathodes 30a-30d, and are arranged so that the linear cathodes pass the inside of the slits and that the rings 31a-31d are located in a space sandwiched between the rack bodies 32a, 32b. By the constitution, if vibration occurs at the linear cathodes 30a-30d, then the rings immediately make free movement and absorb vibrational energy so as to stop vibration of the linear cathodes 30a-30d, and the rack bodies 32a, 32b prevent the rings from invading the inside of an effective screen. Thereby a stable, high quality image is obtained.

10. 发明专利

JPH02117054A IMAGE DISPLAY DEVICE 失效
公开(公告)号：JPH02117054A
公开(公告)日：1990-05-01
申请号：JP26991388
申请日：1988-10-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YOKOMAKURA MITSUNORI , OSADA KEIJI , AONO HIROSHI
IPC分类号： H01J29/04 , H01J31/12
摘要： PURPOSE:To enable an image of high quality to be obtained by having wire cathodes come in contact with one or more insulating wires, and furthermore having these wires come in contact with plural metallic plates so that the oscillation of the wire cathodes is suspended. CONSTITUTION:Each wire cathode 30A through 30D is made to be in tension by means of a wire cathode spring 35 in order to be strength tight. And each wire cathode 30A through 30D is brought in contact with an insulating wire 31 in such a way that the wire is knitted together. In addition, the insulating wire 31 is brought in contact with an insulating wire restraining metallic plate 32 while being formed in a wave shape. In this case, when external force is applied, each wire cathode 30A through 30D starts oscillating at its characteristic frequency so that friction is caused between each wires cathode 30A through 30D and the insulating wire 31. And the insulating wire 31 also concurrently starts oscillating so that friction is caused halfway the distance to the insulating wire restraining metallic plate 32. As a result, the oscillating energy of each wire cathode 30A through 30D is converted into friction energy so that the oscillation of each wire cathode 30A through 30D is damped instantly so as to be suspended. By this constitution, an image of high quality can thereby be obtained stably.

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