前苏联专利SU1461377A3 Colour kinescope

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专利摘要:
In color cathode ray tubes having a slit type apertured shadow mask (50) in which the slit apertures (66) are arranged in columns (68), and the apertures within each column are separated by webs (70), the aperture columns passing through a center portion of the mask are substantially straight, and the aperture columns on both sides of the center portion of the mask are convexly curved toward the center portion, and preferably increase in curvature with distance from the center portion. The mask is used in conjunction with a line type phospher screen in which the phospher lines are straight and parallel to each other. <IMAGE>
公开号:SU1461377A3
申请号:SU853886210
申请日:1985-05-06
公开日:1989-02-23
发明作者:Дэвид Мастертон Вальтер
申请人:Рка Корпорейшн (Фирма)；
IPC主号:

专利说明:

The invention relates to a color kinescope having a cathodoluminescent bar screen and a slit mask, and more specifically to an improved HONry arrangement of the columns of the slots in the slit mask of such a kinescope.
The aim of the invention is to improve the image quality by obtaining straight lines of phosphor at the sides of the screen.
FIG. 1 shows a kinescope with a shadow mask, a plan view, a partial section along the axis; in fig. 2 is a linear luminous screen of a kinescope, a partial vertical view showing some phosphoric lines of the screen; FIG. 3 shows a shadow mask of a kinescope, a partial vertical view showing the mask openings.
The rectangular kinescope 1 (Fig. 1) 1F1eet a glass flask 2 containing a rectangular bottom 3 and a tubular neck 4 connected to the rectangular plane deflection) is shown in FIG. 1 about o
from the deflecting system 12 of the marginal fields, the osprey off-zone passes in the axial from the system 12 to the zone n For simplicity,
10 trajectories of deviating deviations not shown
Screen 8 of the kinescope 1. is a matrix of straight and vertical luminophores
15, only some of FIG. 2. Phosphoric lusters in triads, consisting of: shaped lines of radiation of frosted and blue colors.
2 (1 of the triad and the tria themselves are separated from each other by a growing material. The sides of the screen 8 have straight rectangular creatures
funnel 5. Bottom 3 includes 25 in the same plane.
the front glass 6 and the side wall 7, the remote ends of which are hermetically connected to the funnel 5. A rectangular-type tri-color linear phosphor screen 8 is placed on 30 of the inner surface of the front glass 6. The screen 8 is a linear screen with phosphor lines, located essentially perpendicular to the high-frequency 35 line scanning of the kinescope (i.e., normal to n: X. Fig. 1). The 1-Yugoscheleva aperture mask 9 is removably mounted using conventional means at a given distance from the DO screen 8. The built-in electronic illuminator 10 shown by dotted lines in FIG. 1, is positioned at the center of the neck 4 to create and direct the three electron beams 11. along coplanar converging paths through the mask 9 onto the screen 8, the picture tube shown in FIG. 1, is intended for use with a loading magnetic deflecting system, such as system 12, schematically shown surrounding the neck 4 and the funnel 5 near their junction. When excited, system 12 exposes three beams 11 to magnetic fields, which cause these beams to scan horizontally and vertically in the form of a rectangular raster on the screen 8. ExodusAperturn mask 9 {FIG. 3) includes long gaps or slits 17. Openings 17 columns 18 and in a divided direction each other by slivers 19 masks 9. From each column 18 in the opposite direction in a row or step of the versts in adjacent holes 18 that are of the mask 9, the races direct. The columns 18 from the side of the center are curved and the convexity of the direction of the central view of these biased lines increases in m distance from the central line 9.
If a spot contour is defined and the line margin on the sides is determined, and the shape of the last versions on the finished shadows will be determined by the end mask and its positive screen. These led the separation function of the cm openings of the selected n screen resolution requirements and the relative red, green and
on the deviation plane (with zero deviation) is shown by the P – P line in FIG. 1 approximately around the middle
deflecting system 12. Due to the presence of edge fields, the deflection zone of the kinescope passes in the axial direction from the system 12 to the searchlight zone. For simplicity, actual curvature.
the paths of the deflected rays in the deflection zone are not shown in FIG. one.
Screen 8 of the kinescope 1. is a matrix of straight parallel vertical phosphor lines 13,
only some of which are shown in FIG. 2. Phosphoric lines are grouped into triads, consisting of luminous: shaped lines of emission of red, green and blue colors. The lines 13 of each triad and the triads themselves can be separated from each other by light absorbing material. The side border 14 of the screen 8 has straight sides 15, substantially rectangular corners 16 and in the same plane.
in the same plane.
Aperturn mask 9 kinescope 1 {FIG. 3) includes a matrix of elongated slits or slit holes 17. The holes 17 are located in columns 18 and are vertically separated from each other by the bridges 19 of the mask 9. The holes in each column 18 are arranged in a vertical direction in a checkerboard pattern or stepwise with respect to the holes in adjacent columns. The columns 18 of the holes located in the central part of the mask 9 are located along a straight line. Columns 18 holes on both sides of the central part of the mask are curved and bulge facing towards the central part. The curvature of these offset columns increases as the distance from the center of the mask 9 increases.
If the contour of the screen surface is specified and the position of the last line on the sides of the screen is determined, the position and shape of the last columns of holes in the finished shadow masks will be determined by the contour of the shadow mask itself and its position relative to the screen. These values are a function of the separation of adjacent columns of holes selected based on the screen resolution requirements and the relative spacing of the red, green, and blue dots.
electron beams corresponding to a specific mask aperture. The latter, in turn, is a function of the gradient of the deflection field used. In addition, the influence of mask manufacturing operations on the shape and position of the hole columns should be taken into account when specifying the hole columns on the still unprepared hole mask.
. The following} is used to determine the position and 4 O of the column of holes in the flat mask preform. First, the number of X, Y positions on the screen is precisely determined, corresponding to points on the required last line. The appropriate deviation center for the system is then set. After that, the segments for the surface of the finished mask are calculated for the distance from the center of deviation to the specified points on the screen. The X, Y positions calculated for the mask points are then modified by subtracting the X, Y changes expected during the manufacture of the mask. This leads to the formation of a group of X, Y positions that, when joined by a y-rule ruler or other mathematical means for conjugation, form a curve for the required last hole line in the mask that is still unprepared. Such a curve for this embodiment of the invention has an inward convexity. Due to such a convex curvature, the distance between the columns of the holes (gap a) usually increases with increasing distance from the main X-Ho axis.
Example. In tab. Tables 1-3 show the design data for the new shadow mask intended

0
The plots show the distances X for the last column of holes.
In tab. 1 shows the width of the slits throughout the quadrant, in table. 2 shows the dimensions of the vertical jumpers between the adjacent slit openings within the column of the openings, and in Table. 3 - horizontal distances (gap ".) Between the central lines of adjacent columns of holes,
From tab. It can be seen in Fig. 3 that the columns of the holes are turned inwards by the inwards, and that the curvature of the columns increases with a 5 increase in distance from the main axis.
The flat mask is made in accordance with the table. 1-3 is molded in order to have a radius near the main 0 axis of 32.5 inches (82.6 cm) and a radius near the smaller axis of 42.6 inches (108.2 cm). The finished mask is used in a kinescope with a 26 inch 5 (66.04 cm) visual screen, an outer front glass radius of approximately 42.4 inches (107.7 cm) and an inner radius of the front glass about 40.7 inches (103.4 cm).
In tab. Table 4 shows the comparative data of the last hole column and the new shadow mask, made according to the table. 1 through 3, and a conventional slit shadow mask for use in a 25-inch (62.5 cm) screen diagonal.
As can be seen from the second column in the table. 4, the last column of holes of a conventional mask starts at 9.645 inches along the main axis (Y O) and gradually bends inward as the distance from the main axis increases to 8.979 inches with Y 7 inches. This curvature appears in
five
0
DD1I use in improved reversed outwardly out of the krin color kinescope. All included data is intended for a flat mask to give it the desired shape. Therefore, the obtained values in the final mask will to some extent depend on the set of possible variables that appear in the process of the creation. Each of the tables gives information for one quadrant of the mask. The left columns show the distances along the Y axis from the X axis, the lower rows are the distances along the X axis from the Y axis, the upper rows are the Y distances at the end of the mask hole columns. , right stolva in the columns of the slots at the sides of the mask. However, in the new mask, the last column of holes starts at 9,535 inches along the main
50 yards and gradually increases in distance from the Y axis with increasing distance from the main axis to 9,638 inches with Y being 7 inches. Such a curvature is represented by
55 concave inward curves, Ii mute slit columns at the sides of the new mask.
Change CL gap, in the usual mask between two adjacent columns
514613776
openings at the sides of the mask begins with slivers and located in the vertical
from a value of 39.52 miles on the main axle columns, with the center
; And gradually decreases to a gap of. . 36.89 miles with a Y of 7 inches. The fC gap of the mask starts from 35.63 miles on the main axis and the aperture mask increases the vertical columns are linear and parallel to its minor axis, and as they move away from the small axis, they are made with an increasing curvature with increasing distance from the main axis to 36.88 miles when Y is 7 inches,
BUT ALSO,
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topics

权利要求:
Claims (1)
[1]
that, in order to improve the quality of the image by getting direct. H1-1Y phosphor at the sides of the formula of the invention. columns of the slit holes of the color kinescope containing li-rashcheny convex side to the center
The simple luminescent screen is of a carbon-aperture mask, and the sides of the mineral type and aperture mask with a slit of a J5-shaped screen are linear and lie in openings separated in one plane.
I
Table
-... Ch. 7,329T7,327 | 7.322 I 7.3l7j 7.302 i 7.2877., 269b 247J7.222J7.194G 7.174
6,736,736,766,816,897.007, P7,217.38 7.667, .64- (X 9.642).
7.0 6,746,746,776, 907.027,127,227,447,657.32 (9.638)
6.0 6,756,766,796,846,917,007,117,247,437,537.33 (9.603)
5.0 6,786,796,., 856,927,017, П7,247,4о 7,53 7,52 (X - 9,577).
6,856,85-6,866,906,967,047,137,257,407,537,48 (X -9,559)
3.0 6, 926,936,967,007,067,157,257,407,517.46 (-Х - 9,547)
2.0 6,996,99.7,007, 04-7,097,167,267,397.50. 7.50 (X 9,540)
1,0 7,057,057, ОА7,04 ..7,067,107.,) 77,277,407,527,53 (X - 9,536) 0.0
7.11-7.07 7.05 7.05 7.07 7.P 7.17 7.7 7.40 7.54 7.54 {° X “9.535)
2.0 ..
0.0
1.0
3.0
", 0 5.0 6.0 7.0 7.0
9.0
Note, Width of gap in mils x (1 mil, 0254 mm); X is inches (I inch “, 25.4 mm).
.T. a b and c a 2
Lr impeche. The dimensions of the vertical jumpers in milh (1 mil 0, 0254 mm); X is inches (1 inch 25.4 mm).
the aperture mask vertical columns are linear and parallel to its small axis, and as they move away from the small axis, they are made with an increasing curvature,
from people
topics
Table
-... 4G 7,174
9.0
30,0030,0730,2930,6631,1831,8532,6833,6434,77,36,0637,01, 642)
7.0 30.0030.0730.299.6531, J631.8132.6433.5934.71 35.9936.88, 638)
6.0 29.9930.077.2730.6231.1031.7232.5033.3934.45 35.6536.44 (, 603)
5.0 30,0030,0630,2630,5931,0531,6532,4033,534,25 35,4036,15 (, 577)
4.0 30.0030.0630.2530.58-31.02 31.6032.3233.1534.12 35.2235.90, 559)
- - -. - ...% ".
3.0 30,0030,0630,2530,3731,0031,5732,2733,0834.03 35.1135.77 (X-9,547)
2.0 30.0030 0630.2530.5630.9931.5532.25 33.0433,, 0435.69 (, 540)
1.0 30,0030,0630,2430,5530,9831,5332,2333,0233,95 35,0035,64 (, 536)
0.0
30.00 30.06 30.24 30.55 30.98 31.53 32.22 33.01 33.94 34.98 35.63 (bc-9.535)
Note. Horizontal distance c. mil x (1 mil 0.0234 (n); X - inches (1 inch w 25.4 mm)
Table 4
Table 3
7.287 7.269 I 7.247 7.222 J7.194
7.174:
X.
Compiled by N. Grigorieva Editor S, Baker Tehred L. Oliynyk Proofreader E. Lonchakova
Order 549/59
Circulation 605
VNYUSHI of the State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 4/5, Moscow, Zh-35, Raushsk nab. 113035
Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101
15
Ф14г.г
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引用文献:

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US4300070A|1978-11-30|1981-11-10|Rca Corporation|Cathode-ray tube screen border improvement|

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US4303466A|1980-06-19|1981-12-01|Buckbee-Mears Company|Process of forming graded aperture masks|

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US4429028A|1982-06-22|1984-01-31|Rca Corporation|Color picture tube having improved slit type shadow mask and method of making same|

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法律状态:

优先权:

申请号 | 申请日 | 专利标题

US61431184A| true| 1984-05-25|1984-05-25|

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