公开(公告)号：JPH06325701A

公开(公告)日：1994-11-25

申请号：JP11036593

申请日：1993-05-12

Applicant: MATSUSHITA ELECTRONICS CORP ,  MATSUSHITA ELECTRIC IND CO LTD

Inventor： HONDA MASANOBU ,  ARIMOTO NOZOMI ,  AIHARA SABURO ,  KUDO MASAMITSU ,  YAMAZAKI HIDEO

IPC: H01J29/88 ,  H04N5/64

Abstract: PURPOSE:To shield a leakage electric field in a specific frequency band by covering a part of a funnel made of glass. CONSTITUTION:To the glass funnel 2 of a color display tube 1, a funnel-shaped resin compact 4 a carbon type conductive layer 3 is coated to the inner surface is installed. The compact 4 is fixed to the funnel 2 with a conductive silicon type adhesive seal member 6. The conductive layer 3 is formed on the outer surface of the funnel 2, and a part is earthed through an extended outer duck 5 and the seal member 6 provided to be attached to the duck 5. As the compact 4, a flame resistant polycarbonate resin which can secure the insulation between the surface of a horizontal deflection coil 7 about 1000 Vp of pulse voltage is applied, and the layer 3 is used. By such a way, a a leakage electric field with the frequency band more than 2 kHz and less than 400 kHz from the cathode-ray tube can be shielded effectively.

公开(公告)号：JPH06203768A

公开(公告)日：1994-07-22

申请号：JP34810592

申请日：1992-12-28

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： IWASAKI KATSUYO ,  ARIMOTO NOZOMI ,  HONDA MASANOBU ,  TSUMORI TSUNEYUKI

IPC: H01J29/76 ,  H04N3/16

Abstract: PURPOSE:To reduce a leakage electric field (VLEF) to about a half with almost no generation of ringing. CONSTITUTION:A pair of horizontally deflecting coils 2, 3, mounted on a funnel- shaped insulating frame unit 1 with a pair of vertically deflecting coils and a ferrite core, are arranged to be opposed to each other in upper and lower sides of a horizontal surface containing an axis 4 of the insulating frame unit 1. The upper and lower side horizontally deflecting coils 2, 3 are formed of the coil of saddle type respectively wound in the counter clockwise and the clockwise direction as viewed from a radial large opening end of the insulating frame unit 1. On the other hand, a horizontally deflecting circuit connected to both the horizontally deflecting coils 2, 3 supplies pulse wave voltage 5 of negative polarity from a chassis side.

公开(公告)号：JPH0644915A

公开(公告)日：1994-02-18

申请号：JP19670992

申请日：1992-07-23

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： KATO ATSUSHI ,  OZAWA TETSUO ,  ARIMOTO NOZOMI ,  ADACHI OSAMU

IPC: H01J29/02

Abstract: PURPOSE:To reduce the mis-landing of an electron beam in such an arrangement that a shadow mask formed of invar materials or the like has a smaller coefficient of thermal expansion than that of a glass bulb. CONSTITUTION:A shadow mask 2 provided within a face panel part 7 having a fluorescent film 4 on the inner surface of a front wall has a smaller coefficient of thermal expansion than that of the face panel part 7. In this arrangement, a spring 8 extending from the outer surface of a frame 6 is formed of a bimetal constituted by bonding a first metal plate 8a located on the fluorescent film 4 side with a second metal plate 8b located on a electron gun side having a larger coefficient of thermal expansion than that of the metal plate 8a. One end edge of the second metal plate 8b is fixed on the outer surface of the side wall of the frame 6, and a hole on the other end edge is fitted into a stud pin standing upright on the inner surface of the side wall of the face panel part 7, thereby making it feasible to supply a color picture tube showing an excellent color purity characteristic for both a cold district and a warm distict.

公开(公告)号：JPH03173049A

公开(公告)日：1991-07-26

申请号：JP31362889

申请日：1989-12-01

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： HONDA MASANOBU ,  ARIMOTO NOZOMI ,  ATSUMI TORU ,  TSUTSUI TOSHIHARU

IPC: H01J29/76 ,  H04N3/16

Abstract: PURPOSE:To obtain the preventive effect of wavy ringing and the reducing effect of frequency dependance of convergence by specifying the ratio of the self-inductance of a pair of saddle-form vertical deflecting coils connected in series each other, and the resistance values of resistances connected in parallel to both vertical deflecting coils respectively. CONSTITUTION:The ratio P (=L/R) of the self-inductances L (mH) of a pair of saddle-form vertical deflecting coils 1 and 2 connected in series each other to the resistance values R (kOMEGA) of resistances 12 and 13 connected in parallel to the vertical deflecting coils 1 and 2 respectively is made 3 to 40. When the P value exceeds 40, the Q dumping effect of the vertical deflecting coils 1 and 2 is increased, while the frequency dependent property of convergence is reduced. And when the P value is less than 3, the effect of the Q dumping is reduced, making liable to generate a wavy ringing, and the frequency dependent property of convergence is increased. Consequently, the generation of wavy ringing can be prevented sufficiently, and the frequency dependent property of convergence can be reduced sufficiently.

公开(公告)号：JPS63314745A

公开(公告)日：1988-12-22

申请号：JP15066187

申请日：1987-06-17

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： ARIMOTO NOZOMI

IPC: H01J29/76

Abstract: PURPOSE:To correct the mis-convergence of an in-line type color picture tube easily and reliably with a simple structure by forming a magnetic field correcting element with an insulating piece having a magnetic body piece entering the horizontal deflecting coil inner side at one end and fixing a funnel section with an adhesive layer at the other end. CONSTITUTION:A magnetic field correcting element 6 is formed with a flat insulating piece having a magnetic body piece 12 entering the inner side of a horizontal deflecting coil 8 at one end and an adhesive layer 13 at the other end. This insulating piece 10 is moved along a funnel section from the large- diameter section side and fixed to the funnel section via the layer 13 while a color picture is observed, thus the mis-convergence for each color of an in-line type picture tube is corrected easily and reliably with a simple structure.

公开(公告)号：JPS6059786B2

公开(公告)日：1985-12-26

申请号：JP8449378

申请日：1978-07-10

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： KONOSU OSAMU ,  YOSHIDA OSAMU ,  ARIMOTO NOZOMI ,  TAKAGAWA MASANORI

IPC: H04N5/74 ,  G02B17/08 ,  H01J31/10

公开(公告)号：JPS6033023B2

公开(公告)日：1985-07-31

申请号：JP13754877

申请日：1977-11-15

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： KONOSU OSAMU ,  ARIMOTO NOZOMI ,  YOSHIDA OSAMU ,  TAKAGAWA MASANORI

IPC: G03B21/56 ,  G02B17/00 ,  G02B17/08 ,  H04N5/74

公开(公告)号：JPS5774947A

公开(公告)日：1982-05-11

申请号：JP13283881

申请日：1981-08-24

Applicant: Matsushita Electronics Corp

Inventor： ARIMOTO NOZOMI

IPC: H01J31/20 ,  H01J29/32

CPC classification number: H01J29/322

Abstract: PURPOSE:To improve the utilization of light by providing discontinuous small recess group where one group of grooved small recess is located in the other group of grooved small recess on the inner face of a face plate while providing the phosphor subsistance at the region surrounded by said recess. CONSTITUTION:Grooved small recess 5a and 5b are formed in many group in the horizontal and vertical direction on the inner face of a face plate 4. The small recess 5a, 5b are provided discontinuously such that one small recess group is located between the other small recess groups. Then phosphor material dots R, G, B are formed in the region surrounded by the grooved small recess sections 5a, 5b. Consequently the utilization of light can be improved by reflecting the light emitted from the phosphor subsistance at the grooved small recess section while since the grooved small recess section is discontinuous the strength of the face plate isn't lowered.

Abstract translation: 目的：通过提供不连续的小凹槽组来提高光的利用率，其中一组带槽的小凹槽位于面板内表面的另一组凹槽中的凹槽中，同时在由所述 休息。 构成：凹槽5a和5b在面板4的内表面上在水平和垂直方向上以许多组形成。小凹槽5a，5b被不连续地设置，使得一个小凹部组位于另一个小凹部 休闲组。 然后，在由凹槽的小凹部5a，5b包围的区域中形成荧光体材料点R，G，B。 因此，通过在沟槽的小凹部处反射从磷光体发射的光，可以提高光的利用率，同时由于开槽的小凹部不连续，面板的强度不降低。

公开(公告)号：JPS55151744A

公开(公告)日：1980-11-26

申请号：JP6021179

申请日：1979-05-16

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： SUZUKI ARINOBU ,  ARIMOTO NOZOMI ,  INOUE TOSHINOBU ,  SEKIDA MASAYUKI

IPC: H04N5/74 ,  H01J29/89 ,  H01J31/10

Abstract: PURPOSE:To obtain projection images of a high definition by letting the focusing face of image formed on a fluorescent screen coincide with the curved surface of projection screen. CONSTITUTION:The difference d between the curved surface of a projection screen and the focus of picture light is obtained at each point on the projection screen and the points on a fluorescent screen, corresponding to the points on the projection screen, are made uneven as much as d'=d/M2 (where M is the scale factor of projection), larger than the spherical surface R. In short, when d>O, the focus of picture light is on cathode-ray tube rather than the projection screen and the fluorescent screen structure becomes convex. Also, when d

公开(公告)号：JPS5434674A

公开(公告)日：1979-03-14

申请号：JP10076077

申请日：1977-08-22

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： TAKAGAWA MASANORI ,  ARIMOTO NOZOMI

IPC: H01J9/22 ,  H01J9/227 ,  H01J29/00 ,  H01J29/18

Abstract: PURPOSE:To obtain a fluorescent screen for the display tube which can increase the luminance and is free from occurrence of the baking, by forming the noncrystal low fusing point frit glass layer onto the glass substrate and then burying the fluorescent particle into the glass layer.