CN1018968B - Cathode-ray tube having improved 16x9 aspect ratio faceplate panel - Google Patents
Cathode-ray tube having improved 16x9 aspect ratio faceplate panelInfo
- Publication number
- CN1018968B CN1018968B CN91103191A CN91103191A CN1018968B CN 1018968 B CN1018968 B CN 1018968B CN 91103191 A CN91103191 A CN 91103191A CN 91103191 A CN91103191 A CN 91103191A CN 1018968 B CN1018968 B CN 1018968B
- Authority
- CN
- China
- Prior art keywords
- radius
- curvature
- ratio
- ray tube
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 18
- 238000010894 electron beam technology Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 210000003739 neck Anatomy 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/861—Vessels or containers characterised by the form or the structure thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/86—Vessels and containers
- H01J2229/8613—Faceplates
- H01J2229/8616—Faceplates characterised by shape
- H01J2229/862—Parameterised shape, e.g. expression, relationship or equation
Abstract
In a cathode-ray tube 10 with a rectangular faceplate panel 12 having long sides L and short sides S, with an aspect ratio of 16/9, and a major axis X parallel to the long sides and a minor axis Y parallel to the short sides, and having a rectangular viewing screen 22 on the inner surface of the faceplate panel, the long sides of the panel have a radius of curvature, in a plane of the major and minor axes, that is 7 to 10 times longer than a diagonal dimension of the viewing screen, and the ratio of the radius of curvature of the long sides to the radius of curvature of the short sides is in the range of 1.6 to 1.9.
Description
The present invention relates to cathode ray tube, relate more specifically to have the screen dish peripheral shape of the cathode ray tube that is approximately rectangle the ratio of width to height of 16 * 9.
What up to the present, the telochrome of commodity had 4 * 3 the ratio of width to height always watches screen and screen dish (the ratio of width to height is the finger widths horizontal size and the ratio of vertical dimension highly in other words in other words).Yet, in the immediate future, when introducing the high-resolution television system in the commercial TV, will require cathode ray tube that higher the ratio of width to height is arranged.The ratio of width to height of most of cinefilms is approximately 22 * 9.Yet for its volume, the cathode ray tube of 22 * 9 the ratio of width to height is undue heavy, and therefore, the cathode ray tube industrial quarters fixes on standard on 16 * 9 lower the ratio of width to height, as the compromise standard of high-resolution system in the future.
The cathode-ray tube blanking disk that constitutes with 16 * 9 the ratio of width to height of early-stage development comprises the periphery that has than deep camber.Making the crooked purpose of periphery is atmospheric pressure when making the screen dish have sufficiently high intensity to stand pipe to find time.The shortcoming of the screen dish that periphery curvature is big is that the additional space that adapts with cathode ray tube must be provided in tv chassis.Yet the television set designer wishes to make the size of cabinet as far as possible little, and cabinet is also light as far as possible.Make a kind of pipe and will make pipe that minimum size is arranged, but can bring on the thickness of glass, bring undesirable increase on pipe weight thereupon with screen dish of straight flange.Therefore, need make the design of a kind of cathode ray tube, it obtains a compromise result between the pipe weight of the pipe screen dish height of minimum and width and minimum.
The invention provides a kind of improved cathode ray tube, it comprises a kind of rectangle screen dish that two long peripheries and two short peripheries are arranged, and wherein, the length of long periphery is approximately 16/9 with the length ratio of short periphery.This pipe comprises main shaft that is parallel to two long limits and the countershaft that is parallel to two minor faces.A rectangle watches phosphor screen to be positioned on the inner surface of screen dish.Its improvement comprises: on main shaft and countershaft plane, the radius of curvature on the long limit of screen dish is about 7 to 10 times that now see the phosphor screen Diagonal Dimension, and the ratio of the radius of curvature on long limit and the radius of curvature of minor face is about within 1.6 to 1.9 the scope.
Fig. 1 is the end view that has comprised the mask color picture of one embodiment of the present of invention, and wherein part is an axial, cross-sectional view.
Fig. 2 is the plan view at the screen dish back side of the pipe of Fig. 1.
Fig. 3 is the composite plane figure of the neighboring of one 1/4th screen dish, shows screen dish bent limit straight flange, prior art and novel bent limit neighboring situation.
Fig. 1 shows the rectangle chromoscope 10 of glass shell 11, and shell 11 comprises rectangle screen dish 12 and bores 15 necks that are connected 14 with rectangular tube.Pipe awl 15 has the undercoating (not shown) that is extended to the conduction of neck 14 by anode head 16.Screen dish 12 comprises that rectangle watches panel 18 and be sealed to the periphery flange (or limit wall) 20 of pipe awl 15 by frit 17.On the inner surface of panel 18, be loaded with tricolour phosphor screen 22.Phosphor screen 22 is preferably the strip phosphor screen that phosphor strip is arranged by three colour cells, and each three colour cell comprises each phosphor strip of three kinds of colors.Perhaps, phosphor screen can be a kind of dot fluorescent screen, and it can comprise also can not comprise one deck light absorption matrix.Multicolumn hole colour selection electrode or shadow mask 24 are installed by mode movably with predetermined space with respect to phosphor screen 22.In Fig. 1, centrally be installed in the neck 14, producing three electron beams 28, and make them arrive phosphor screens 22 by shadow mask 24 projections along assembling path with the illustrated electron gun 26 of dotted line.
The tube designs Cheng Yuyi of Fig. 1 extraneous magnetic deflection yoke (for example illustrated pipe awl that is in is with near the magnetic deflection yoke 30 the neck joint) uses.When magnetic deflection yoke 30 was swashed strive forward, it made three electron beams 28 be subjected to the action of a magnetic field, make electron beam in phosphor screen 22 upper edge levels with vertical to scanning out a rectangular raster.Initial deflection (zero deflection) plane is greatly about the middle part of magnetic deflection yoke 30.Because the influence of fringe magnetic field, the deflecting region of pipe is axially extended in the zone of electron gun 26 by magnetic deflection yoke 30.For simplicity, the actual curve of the deflection path of electron beam is not shown among Fig. 1 in deflection area.
As shown in Figure 2, rectangle screen dish 12 comprises that two normal axis are major axis X and countershaft Y, and two diagonal D.Two long limit L that screen coils 12 peripheries are arranged essentially parallel to major axis X, and two minor face S are arranged essentially parallel to countershaft Y.Best mode is, the long limit of screen dish and minor face are crooked in the plane of X, Y and D, and the radius of curvature on long limit and the ratio of the radius of curvature of minor face are greatly within 1.6 to 1.9 scope.And the radius of curvature on long limit and the ratio of phosphor screen Diagonal Dimension are greatly within 7 to 10 scope.These scopes have shown that the ratio of width to height is the optimal design of 16 * 9 pipe.
In the table I, (1) size and the ratio of three 16 * 9 screen dishes have within the scope of the invention been shown to (3), (4) and (5) shown the size and the ratio of two 16 * 9 screen dishes in the prior art, and (6) to (8) have shown the size and the ratio of three 4 * 3 screen dishes, compare being used for.
The table I
Bent long limit, bent minor face bent length limit, the long limit of cast phosphor screen radius of curvature with
The ratio of diagonal rate radius rate radius rate radius ratio Diagonal Dimension
(millimeter) (millimeter) (millimeter)
Newly
16×9
（1） 863.6 7691.06 4280.33 1.797 8.906
（2） 762 6450.15 3504.73 1.840 8.465
（3） 660.4 5001.21 2999.41 1.667 7.573
Prior art
16×9
（4） 863.6 3003 2683 1.119 3.477
（5） 762 2652 2370 1.119 3.480
Prior art
4×3
（6） 889 5522 5434 1.016 6.211
（7） 787.4 4837.39 4703.71 1.028 6.143
（8） 685.8 5408.96 3941.42 1.372 7.887
Fig. 3 has shown the composite diagram of the long limit curve of three kind of 16 * 9 x 9 aspect ratio faceplate panel: have straight flange 32 the screen dish, have than the prior art screen dish on the limit 34 of macrobending and have the novel screen dish on crooked less limit 36.From viewpoint aesthstic and that save the space, wish screen dish most with band straight flange 32.Yet stress is bigger in having the screen dish of straight flange, thereby requires the thickness of screen dish and weight than the screen dish of prior art significant increase to be arranged.Though the design of prior art screen dish allows to use thin and lighter glass, the limit that the bending of screen dish is bigger requires television cabinet to have than large space, thereby makes last product design comparatively huge.The screen dish desired space in receiver case that constitutes according to the present invention is less, and weight ratio prior art screen dish is light slightly.The limited basic operation that novel screen dish is done shows, to be higher than stress in prior art screen dish in the The stress of glass of novel screen dish, but when novel screen dish was loaded onto explosion-protection equipment, the explosion possibility that has the pipe of novel screen dish did not more increase than the pipe of prior art.
Claims (7)
1, a kind of cathode ray tube that comprises rectangle screen dish with two long limits and two minor faces, described long edge lengths is 16/9 with the ratio of described bond length, described cathode ray tube comprises main shaft that is parallel to described two long limits and the countershaft that is parallel to described minor face, and the rectangle that is included on the described screen inner surface is watched phosphor screen, it is characterized in that
The radius of curvature of the long limit (L) of described screen dish (12) on the plane of described main shaft (X) and countershaft (Y) is 7 to 10 times of described Diagonal Dimension of watching phosphor screen (22), and the ratio of the radius of curvature of the radius of curvature on described long limit and described minor face (S) is within 1.6 to 1.9 scope.
2, cathode ray tube as claimed in claim 1, it is characterized in that, when described Diagonal Dimension of watching phosphor screen (22) was 864 millimeters, the radius of curvature on the described long limit (L) of described screen dish (12) was 7691 millimeters, and the radius of curvature of described minor face (S) is 4280 millimeters.
According to the cathode ray tube of claim 1, it is characterized in that 3, the radius of curvature on described long limit (L) is 8.9 with the ratio of described diagonal, and the ratio of the radius of curvature of the radius of curvature on described long limit and described minor face (S) is 1.8.
4, according to the cathode ray tube of claim 1, it is characterized in that, when described Diagonal Dimension of watching phosphor screen (22) was 762 millimeters, the radius of curvature on the described long limit (L) of described screen dish (12) was 6450 millimeters, and the radius of curvature of described minor face (S) is 3504 millimeters.
5, cathode ray tube as claimed in claim 1 is characterized in that, the radius of curvature on described long limit (L) is 8.5 with the ratio of described diagonal, and the ratio of the radius of curvature of the radius of curvature on described long limit and described minor face (S) is 1.8.
6, cathode ray tube as claimed in claim 1, it is characterized in that, when described Diagonal Dimension of watching phosphor screen (22) was 660 millimeters, the radius of curvature on the described long limit (L) of described screen dish (12) was 5001 millimeters, and the radius of curvature of described minor face (S) is 2999 millimeters.
7, cathode ray tube as claimed in claim 1 is characterized in that, the radius of curvature on described long limit (L) is 7.6 with the ratio of described diagonal, and the ratio of the radius of curvature of the radius of curvature on described long limit and described minor face (S) is 1.7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT20271A IT1239972B (en) | 1990-05-11 | 1990-05-11 | CATHODE TUBE HAVING A PERFECTED FRONT PANEL PANEL, WITH 16/9 "WIDTH / HEIGHT RATIO |
| IT20271A/90 | 1990-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056601A CN1056601A (en) | 1991-11-27 |
| CN1018968B true CN1018968B (en) | 1992-11-04 |
Family
ID=11165319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91103191A Expired CN1018968B (en) | 1990-05-11 | 1991-05-10 | Cathode-ray tube having improved 16x9 aspect ratio faceplate panel |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JP2611885B2 (en) |
| KR (1) | KR940010952B1 (en) |
| CN (1) | CN1018968B (en) |
| CA (1) | CA2039822C (en) |
| CS (1) | CS128391A2 (en) |
| CZ (1) | CZ544U1 (en) |
| DE (2) | DE4114606A1 (en) |
| FR (1) | FR2662021B1 (en) |
| GB (1) | GB2243945B (en) |
| IT (1) | IT1239972B (en) |
| PL (1) | PL164198B1 (en) |
| TR (1) | TR25115A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5319280A (en) * | 1991-05-06 | 1994-06-07 | U.S. Philips Corporation | Color picture tube with reduced raster distortion and flat appearing display window |
| KR100313829B1 (en) * | 1996-03-06 | 2001-12-28 | 니시무로 타이죠 | Cathode ray tube and its manufacturing method |
| US6011350A (en) * | 1996-04-25 | 2000-01-04 | Thomson Consumer Electronics, Inc. | Color picture tube faceplate panel |
| EP0905742A1 (en) * | 1997-03-14 | 1999-03-31 | Kabushiki Kaisha Toshiba | Color cathode ray tube |
| EP1079412A3 (en) | 1999-08-21 | 2002-11-27 | Schott Glas | Television tube |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146913A (en) * | 1974-10-18 | 1976-04-22 | Matsushita Electric Ind Co Ltd | JIKIKIROKU SAISEISOCHI |
| US4483452A (en) * | 1981-12-07 | 1984-11-20 | Corning Glass Works | Television bulb |
| NL8304181A (en) * | 1983-12-06 | 1985-07-01 | Philips Nv | COLOR IMAGE TUBE. |
| JPH01155787A (en) * | 1987-12-14 | 1989-06-19 | Hitachi Ltd | Television signal receiver |
| IT1239510B (en) * | 1990-03-30 | 1993-11-03 | Videocolor Spa | CATHODE TUBE HAVING A PERFECTED FRONT SHEET, WITH 16/9 "WIDTH / HEIGHT RATIO |
-
1990
- 1990-05-11 IT IT20271A patent/IT1239972B/en active IP Right Grant
-
1991
- 1991-04-04 CA CA002039822A patent/CA2039822C/en not_active Expired - Lifetime
- 1991-04-24 GB GB9108839A patent/GB2243945B/en not_active Expired - Fee Related
- 1991-05-03 CZ CZ1993320U patent/CZ544U1/en unknown
- 1991-05-03 CS CS911283A patent/CS128391A2/en unknown
- 1991-05-04 DE DE4114606A patent/DE4114606A1/en not_active Ceased
- 1991-05-04 DE DE9116705U patent/DE9116705U1/en not_active Expired - Lifetime
- 1991-05-06 TR TR91/0469A patent/TR25115A/en unknown
- 1991-05-06 FR FR9105518A patent/FR2662021B1/en not_active Expired - Fee Related
- 1991-05-08 KR KR1019910007408A patent/KR940010952B1/en not_active IP Right Cessation
- 1991-05-10 CN CN91103191A patent/CN1018968B/en not_active Expired
- 1991-05-10 JP JP3135862A patent/JP2611885B2/en not_active Expired - Fee Related
- 1991-05-10 PL PL91290205A patent/PL164198B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| PL290205A1 (en) | 1992-01-13 |
| GB2243945B (en) | 1994-05-11 |
| IT1239972B (en) | 1993-11-27 |
| IT9020271A1 (en) | 1991-11-11 |
| JPH04229534A (en) | 1992-08-19 |
| TR25115A (en) | 1992-11-01 |
| KR910020789A (en) | 1991-12-20 |
| DE9116705U1 (en) | 1993-09-02 |
| CS128391A2 (en) | 1991-12-17 |
| KR940010952B1 (en) | 1994-11-19 |
| CZ544U1 (en) | 1993-08-25 |
| IT9020271A0 (en) | 1990-05-11 |
| JP2611885B2 (en) | 1997-05-21 |
| CA2039822C (en) | 2001-11-20 |
| PL164198B1 (en) | 1994-06-30 |
| GB2243945A (en) | 1991-11-13 |
| FR2662021A1 (en) | 1991-11-15 |
| CA2039822A1 (en) | 1991-11-12 |
| FR2662021B1 (en) | 1993-12-10 |
| DE4114606A1 (en) | 1991-11-21 |
| GB9108839D0 (en) | 1991-06-12 |
| CN1056601A (en) | 1991-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19930804 Termination date: 20100510 |