CN201282102Y

CN201282102Y - Color kinescope

Info

Publication number: CN201282102Y
Application number: CNU2008200302779U
Authority: CN
Inventors: 徐莉华; 焦宗平; 赵天有
Original assignee: Irico Display Devices Co Ltd
Current assignee: Irico Display Devices Co Ltd
Priority date: 2008-09-16
Filing date: 2008-09-16
Publication date: 2009-07-29
Anticipated expiration: 2018-09-16

Abstract

A color kinescope comprises a fluoroscopic screen and a glass cone hermetically connected with the fluoroscopic screen. A deflecting coil component, an inner magnetic shield and an electron gun are arranged at the tail part of the glass cone; the fluoroscopic screen and the glass cone are sealed into a whole; the inner magnetic shield and a frame are connected through a clamp spring; a molding shadow mask is connected with a frame, and adopts a structure, the height of which nonlinearly changes from the center of an arc surface to the edge; an AK material variable pitch tablet shadow mask and a heatproof arc molding shadow mask are designed; a screen coating exposure system comprises an exposure platform, a correcting lens, an optical filter, etc.; and a low-cost S/T type rectangular structure for a novel-designed super-thin type pipe is matched with the deflecting coil. The entire pipe length of the utility model is 310.5mm plus or minus 6.5mm. Compared with the general pipe, the length is reduced by 114mm, the performance of the entire pipe is not lower than that of the general pipe, and the cost is approximate to that of the general pipe.

Description

A kind of color picture tube

Technical field

The utility model relates to the manufacturing technology of color television set picture tube, especially flat square cathode-ray color picture tube.

Background technology

Because panel TV impacts and extruding the market share of CRT (cathode-ray color picture tube) TV, CRT must develop to the slimming direction, could strengthen the market competitiveness of CRT TV.The utility model is mainly developed 54cm flat square slim cathode ray color picture tube product, the attenuation of colored picture tube thickness, weight lighten, can significantly reduce manufacturer's cost and logistics, transportation and packing charges, the ability that manufacturer is had more come into the market to compete is also catered to the consumer to fashion and the good pursuit of image quality simultaneously.54cm flat square colored picture tube has the bigger market demand as main flow size CPT, and slimming meets the development trend of current C RT.The product of the slim Guan Shangwu marketization of 54cm flat square colored picture tube at present if can take the lead in realizing slimming, can obviously improve the market competitiveness.

The utility model content

The purpose of this utility model is an exploitation 54cm flat square slim cathode ray color picture tube product, homogeneous tube length 310.5mm ± 6.5mm, and common tube shortens 25% relatively, and the homogeneous tube performance is not less than the common tube performance, and cost and common tube are approaching.

For achieving the above object, the utility model takes following technical scheme to be achieved:

A kind of color picture tube, comprise, the glass awl that phosphor screen and phosphor screen are tightly connected, the afterbody of glass awl is provided with yoke assembly, inner magnetic screen, electron gun, phosphor screen and the sealing-in of glass awl are one, and inner magnetic screen is connected by jump ring with framework, and molded aperture mask and framework are linked together, it is characterized in that molded aperture mask is the structure that the height from the center of surface to the edge is nonlinear change.

Described molded aperture mask is 30mm～40mm with respect to the corner curved surface difference in height of central point, from the center of shadow mask to the level interval difference of edge grid.Described center from shadow mask is 0.70mm～0.80mm to the central series of edge grid and the horizontal pitch of adjacent column, the horizontal pitch of edge columns and adjacent column is 1.00mm～1.10mm, horizontal pitch between each row is increased to both sides gradually by the center, the aperture of shadow mask center grid is 0.195mm～0.204mm, and the aperture of grid is contended cumulative big by center to four.

The deflection angle design angle of described color picture tube is 113 degree.

By the picture tube that technique scheme is produced, the total length size of homogeneous tube shortens 114mm than common tube, has realized the short typeization of homogeneous tube length.

The height 2.3 of glass awl YOKE portion curve 2.2 and the setting of deflection center position make the length of glass awl obtain effective shortening.

Ultrathin effective square type awl and ultrathin effective saddle ring (S/T) type of brand-new design low-cost square 7 structure deflecting coils cooperate, and have satisfied the ultrashort low cost of 54cm flat square slim cathode ray color picture tube.

Molded aperture mask is traitorous anomaly plate shadow mask of AK material and heat resistanceheat resistant arch shaping mask design, the ordered series of numbers grid is distributing on the shadow mask, from the center of shadow mask to the level interval difference of edge grid, the horizontal pitch of grid central series and adjacent column is 0.70mm～0.80mm, the horizontal pitch of edge columns and adjacent column is 1.00mm～1.10mm, and the horizontal pitch between each row is increased to both sides gradually by the center; The aperture of center grid is 0.195mm～0.204mm, and the aperture of grid is contended cumulative big by center to four.The height nonlinear change of the curved surface of the utility model shadow mask its curved surface from the center to the edge is a reference point with the center of aperture mask curved surface, and the curved surface height of corner is 30mm～40mm.The shadow mask that this structure and curved surface distribute has guaranteed that the assortment of electron beam on phosphor screen requires and select the look requirement, has enough mechanical strengths, satisfies that colorimetric purity requires, requirements such as brightness uniformity requirement and unit white field homogeneity.

The utility model compared with the prior art, homogeneous tube length has shortened to 310.5mm by common tube 424.9mm, improve the big defective of common color picture tube total length size, can significantly reduce logistics, transportation and the packing charges of complete machine producer, cater to the consumer simultaneously fashion and the good pursuit of image quality; The utility model guaranteed performance index when design is not less than the common tube of same specification, has high cost performance; After the utility model was finished the design affirmation, by updating technology and reducing manufacturing cost, meeting is raising sexual valence advantage further when volume production advances; Because 54cm flat square colored picture tube has considerable market,, will further enhance one's market competitiveness if release 54cm flat square slim cathode ray color picture tube.

Description of drawings

Fig. 1 is a surface structure schematic diagram of the present utility model.

Fig. 2 is glass screen of the present utility model and glass wimble structure schematic diagram.

Fig. 3 is the structural representation of planar mask of the present utility model and heat resistanceheat resistant arch shaping shadow mask.

Fig. 4 is a molded aperture mask grizzly level pitch schematic diagram of the present utility model

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

A kind of color picture tube, comprise, phosphor screen 1 bores 2 with the glass that phosphor screen is tightly connected, the afterbody of glass awl 2 is provided with yoke assembly 7, inner magnetic screen 6, electron gun 8, it is one that phosphor screen 1 and glass are bored 2 sealing-ins, inner magnetic screen 6 and framework 4 are connected by jump ring, and molded aperture mask 3 is linked together with framework 4, and molded aperture mask 3 is structures that the height from the center of surface to the edge is nonlinear change.Described molded aperture mask 3 is 30mm～40mm with respect to the corner curved surface difference in height of central point.Described center from shadow mask is to the level interval difference of edge grid.Described center from shadow mask is 0.70mm～0.80mm to the central series of edge grid and the horizontal pitch of adjacent column, and the horizontal pitch of edge columns and adjacent column is 1.00mm～1.10mm, and the horizontal pitch between each row is increased to both sides gradually by the center.The aperture of described shadow mask center grid is 0.195mm～0.204mm, and the aperture of grid is contended cumulative big by center to four.

Deflection angle 10 design angles of described color picture tube are 113 degree.

With reference to shown in Figure 1, adopt the slim color picture tube of flat square of the present utility model to comprise phosphor screen 1, glass awl 2, molded aperture mask 3, framework 4, anti-riotly be with 5, inner magnetic screen 6, deflecting coil 7 electron guns 8.Phosphor screen 1 and glass awl 2 is an one by frit seal, molded aperture mask 3 welds together with framework 4 becomes shadow mask-frame assembly, shadow mask-frame assembly is connected with phosphor screen 1 by spring leaf, inner magnetic screen 6 and framework 4 are connected by jump ring, explosion-proof band assembly 5 is equipped with in the outside of glass screen 1, electron gun 8 sealing-ins are at the afterbody of glass awl 2, phosphor screen 1, glass awl 2, molded aperture mask 3, framework 4, inner magnetic screen 8 and electron gun 8 are formed an obturator like this, its inside is vacuum, and deflecting coil 7 is installed in the outside of the glass awl 2 of this obturator.The R that electron gun 8 emits (red), G (green), B (indigo plant) electron beam are bored the deflection of the magnetic deflection field of deflecting coil 7 generations on 2 by being installed in glass, the molded aperture mask 3 that supports via framework 4 select look after beat on the phosphor screen 1 that is coated with R (red), G (green), B (indigo plant) three-color phosphor, demonstrate good, white field of colour purity and even brightness image then.

In order to guarantee the homogeneous tube performance, spring leaf frame assembly 4 and glass screen 1 are optimized design configurations at the utility model; At glass awl 2 and yoke assembly 7, the utility model is in order to shorten the homogeneous tube total length, and deflection angle 10 designs are about 113 degree, adopt saddle ring (S/T) type rectangular configuration deflecting coil 7, reduce to manage the total length of awl and caliber like this.

With reference to Fig. 1, shown in Figure 2, the total length of homogeneous tube is that height 17, deflection center 20 and the glass of distance between height, screen awl sealing surface and the deflection center of glass screen 1 bored the distance 22 between YOKE portion's curved surface 19 and caliber 21 lines and the length summation of neck 21.Homogeneous tube length of the present utility model is about 310.5mm, realizes the short type purpose of 54cm flat square slim cathode ray color picture tube.

Shown in Figure 3 with reference to figure, ultra-thin color kinescope shadow mask 3 of the present utility model comprises fillet surface portion 12 three parts between effective curved face part 10, shirt rim portion 11 and effective curved face part 10 and the shirt rim portion 11.Effectively curved face part 10 and fillet surface portion 12 are unified whole curved surface, the height nonlinear change of its curved surface from the center to the edge.Grid 13 is distributed on effective curved face part 10 of shadow mask 3.The grid 13 of the effective curved face part 10 of the utility model is by size distribution, the aperture of grid 13 by the center to four jiaos of increases.

With reference to shown in Figure 4, be the local detail of grid 13, wherein adjacent two

holes

14 and 15 central horizontal distance are horizontal pitch D _PH, shadow mask 3 pars intermedia horizontal pitch D _PHBe 0.70mm～0.80mm, shadow mask 3 four bight horizontal pitch D _PHBe 1.00mm～1.10mm, horizontal pitch D _PHCenter non-linear increase by shadow mask 3 to both sides.

Claims

1, a kind of color picture tube, comprise, phosphor screen (1) is bored (2) with the glass that phosphor screen is tightly connected, and the afterbody of glass awl (2) is provided with yoke assembly (7), inner magnetic screen (6), electron gun (8), phosphor screen (1) and (2) sealing-in of glass awl are one, and inner magnetic screen (6) is connected by jump ring with framework (4), and molded aperture mask (3) is linked together with framework (4), it is characterized in that molded aperture mask (3) is the structure that the height from the center of surface to the edge is nonlinear change.

2. color picture tube according to claim 1 is characterized in that, described molded aperture mask (3) is 30mm～40mm with respect to the corner curved surface difference in height of central point.

3. color picture tube according to claim 1 is characterized in that, described center from shadow mask is to the level interval difference of edge grid.

4. color picture tube according to claim 3, it is characterized in that, described center from shadow mask is 0.70mm～0.80mm to the central series of edge grid and the horizontal pitch of adjacent column, the horizontal pitch of edge columns and adjacent column is 1.00mm～1.10mm, and the horizontal pitch between each row is increased to both sides gradually by the center.

5. color picture tube according to claim 4 is characterized in that, the aperture of described shadow mask center grid is 0.195mm～0.204mm, and the aperture of grid is contended cumulative big by center to four.

6. according to any described color picture tube of claim 1-5, it is characterized in that the deflection angle design angle of described picture tube is 113 degree.