JPS642351U

JPS642351U -

Info

Publication number: JPS642351U
Application number: JP9782987U
Authority: JP
Priority date: 1987-06-25
Filing date: 1987-06-25
Publication date: 1989-01-09

Description

[Brief explanation of the drawing]

第１図は本考案偏向ヨーク装置の一実施例にお
ける概略背面図、第２図は同じく４枚の磁性片に
よつて生じる垂直偏向磁界の分布状態の説明図、
第３図は同じく画面上のアンバランスなＶＣＲの
補正の状態を示す説明図、第４図は本考案偏向ヨ
ーク装置の他の実施例における概略背面図、第５
図は同じく４枚の磁性片によつて生じる垂直偏向
磁界の分布状態の説明図、第６図は同じく画面上
のＶＣＲおよび横線ミスコンの補正の状態を示す
説明図、第７図は一般に知られている垂直偏向コ
イルによつて発生する垂直偏向磁界の分布状態の
説明図、第８図は画面上に生じるＶＣＲの説明図
、第９図は画面上に生じる横線ミスコンの説明図
、第１０図は従来の偏向ヨーク装置の概略背面図
、第１１図は同じくＶＣＲ補正用の磁性片の平面
図である。１……偏向ヨーク装置、２……コア、３……垂
直偏向コイル、４……コイルボビン、５……水平
偏向コイル、６……受像管、７……コイルボビン
後部拡大部、８，９，１０，１１，２１，２２，
２３，２４……磁性片。 FIG. 1 is a schematic rear view of one embodiment of the deflection yoke device of the present invention, and FIG. 2 is an explanatory diagram of the distribution state of the vertical deflection magnetic field generated by the four magnetic pieces.
FIG. 3 is an explanatory diagram showing the state of correction of an unbalanced VCR on the screen, FIG. 4 is a schematic rear view of another embodiment of the deflection yoke device of the present invention, and FIG.
The figure is also an explanatory diagram of the distribution state of the vertical deflection magnetic field generated by the four magnetic pieces, Fig. 6 is an explanatory diagram also showing the state of correction of VCR and horizontal line misconception on the screen, and Fig. 7 is a generally known diagram. Figure 8 is an illustration of the distribution of the vertical deflection magnetic field generated by the vertical deflection coil, Figure 8 is an illustration of the VCR generated on the screen, Figure 9 is an illustration of the horizontal line misconception generated on the screen, Figure 10 is an illustration of the distribution of the vertical deflection magnetic field generated by the vertical deflection coil. 1 is a schematic rear view of a conventional deflection yoke device, and FIG. 11 is a plan view of a magnetic piece for VCR correction. DESCRIPTION OF SYMBOLS 1... Deflection yoke device, 2... Core, 3... Vertical deflection coil, 4... Coil bobbin, 5... Horizontal deflection coil, 6... Picture tube, 7... Coil bobbin rear enlarged part, 8, 9, 10 ,11,21,22,
23, 24...Magnetic piece.

Claims

[Scope of utility model registration request]

a core; a horizontal deflection coil and a vertical deflection coil wound along the core; and a horizontal deflection coil and a vertical deflection coil arranged on the inner surface of the core to maintain insulation between the two coils;
In a deflection yoke device that includes a coil bobbin that defines the positions of both coils and is mounted on a picture tube in which a plurality of electron guns are arranged in-line, at least two magnetic pieces are attached to the surface of a rear enlarged portion of the coil bobbin. of the electron beams generated by the electron gun, the sensitivity of the electron beam located in the center is compared with the sensitivity of the electron beams located on both sides. Either the upper and lower parts of the screen are unbalanced, or the sensitivity of the electron beam located in the center is increased compared to the sensitivity of the electron beams located on both sides, and the sensitivity of the electron beams located on both sides is increased. A deflection yoke device characterized in that the sensitivity of one electron beam is increased or decreased compared to the sensitivity of the other electron beam.