CN1488158A - Compliant tension mask assembly - Google Patents
Compliant tension mask assembly Download PDFInfo
- Publication number
- CN1488158A CN1488158A CNA028039246A CN02803924A CN1488158A CN 1488158 A CN1488158 A CN 1488158A CN A028039246 A CNA028039246 A CN A028039246A CN 02803924 A CN02803924 A CN 02803924A CN 1488158 A CN1488158 A CN 1488158A
- Authority
- CN
- China
- Prior art keywords
- middleware
- picture tube
- shadow mask
- frame
- expansion
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 238000010894 electron beam technology Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVMHUALAQYRRBM-UHFFFAOYSA-N [P].[P] Chemical compound [P].[P] QVMHUALAQYRRBM-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
- H01J29/073—Mounting arrangements associated with shadow masks
-
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/07—Shadow masks
- H01J2229/0716—Mounting arrangements of aperture plate to frame or vessel
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
A color picture tube has a compliant tension mask frame assembly mounted within said tube. The tension mask frame assembly includes a peripheral frame including opposing side support frame members is attached to the peripheral frame at a single location and the mask is attached to longitudinal edges of the intermediate members. Further included are clips that serve as guides for holding the intermediate members. Further included are clips that serve as guides for holding the intermediate members to the frame while permitting expansion of the frame relative to the intermediate members and permitting compliance.
Description
Technical field
The present invention relates to have the color picture tube of tension type mask, particularly have the tension type mask assembly that is used for tension type mask is connected to the device of scaffold for improving plasticity.
Background technology
Color picture tube comprises that one is used to produce and with the fluoroscopic electron gun of three electron beam alignment picture tubes.Phosphor screen is positioned on the inner surface of kinescope panel and by the array of the phosphor element of sending three kinds of different colours to be made.The color selective electrode that can be shade shadow mask or focus mask only clashes into the phosphor element relevant with this electron beam to allow every beam electrons bundle between electron gun and phosphor screen.The shade shadow mask also is configured to the inner surface that is parallel to kinescope panel usually for the sheet metal of for example steel.
A kind of color picture tube of form has the tension type mask that is connected to two parallel support frame partss under tension force and it is installed in panel screen of picture tube.This tension force helps the vibration control or the microphonic control of the shadow mask in the picture tube course of work.In the manufacturing of CRT (cathode ray tube), shadow mask and framework are through a heating furnace and be heated to very high temperature, therefore cause the expansion of framework and shadow mask.In this heating cycle, shadow mask and frame material intensity reduce and distortion exceeds its plastic limit.When cooling off shadow mask and framework subsequently, the tension force on the shadow mask reduces with the ratio of about total plastic property deformation ratio original plasticity.Traditional Frame Design has high central portion plasticity but has lower edge plasticity.This low edge plasticity provides very little Tension Control surplus at the edge of shadow mask.The plasticity form of conventional frame causes making the wrinkling shadow mask of shadow mask to be out of shape.In order to keep the tension force on the shadow mask in the traditional tension type mask framework, must be connected to shadow mask on the thick and heavy relatively scaffold.If once the someone proposed desired tension force reduction on the shadow mask, then can in the tension type mask picture tube, use lighter framework.A kind of method of desired tension force that reduces on the shadow mask is to adopt to have the low material shadow mask of thermal coefficient of expansion.Yet, need have the scaffold of the material of similar thermal coefficient of expansion by the made shadow mask of this material, to prevent making not matching of thermal expansion in the desired heat treatment process at picture tube.Because it is relatively costly to have the metal material of low thermal coefficient of expansion, it is relative with the framework cost high therefore to adopt identical or similar low-expansion material to make shadow mask.So comparatively ideal is to adopt low-expansion tension type mask and than the combination of the scaffold of high expansion coefficient, and provide the solution of the problem of existence when significantly thermal coefficient of expansion does not match between tension type mask and its scaffold.Comparatively ideal in addition is to provide a kind of method of shadow mask frame plasticity form of changing to control the tension force that is lost by heat treatment and prevent that shadow mask is wrinkling on shadow mask.
Summary of the invention
The present invention provides a kind of improvement aspect the color picture tube with the plasticity tension type mask frame assembly that is installed in the picture tube.The tension type mask frame assembly comprises the edge frame of the middleware with relative limit scaffold parts and pair of parallel.The single position of each middleware between the middleware end links to each other with a side component.Shadow mask is remained under the tensioning state by middleware, and this middleware provides with respect to the plasticity of framework central authorities and obtains device than high rim plasticity.Such plasticity form makes has avoided wrinkling, and does not lose the unacceptable tension force of quantity.
The present invention also further provides and uses the device with different thermal expansion coefficient material.Under this situation, the material of middleware can be similar to the material of the shadow mask with first thermal coefficient of expansion, and edge frame can be made by the material with second thermal coefficient of expansion.For example, tension type mask and middleware can be made by invar or by the similar material that has relatively low thermel expansion coefficient with respect to the material coefficient of thermal expansion coefficient that is used for forming edge frame.In another embodiment, above-mentioned edge frame comprises as guider so that middleware is remained on any undesired deformation that clamping element on the framework allows said frame to expand with respect to middleware simultaneously and prevents middleware.
Description of drawings
Wherein:
Fig. 1 implements color picture tube of the present invention, local end view on shaft section;
Fig. 2 is the perspective view of tension type mask assembly;
Fig. 3 is a vertical view of having removed the shadow mask-frame assembly of tension type mask for the plasticity that clearly demonstrates middleware;
Fig. 4 is the curve chart that expression distributes according to explanation plasticity of the present invention;
Fig. 5 is the vertical view of another embodiment of the present invention;
In Fig. 6 presentation graphs 5 along the enforcement illustration of 1-1 line;
In Fig. 7 presentation graphs 5 along the enforcement illustration of 2-2 line;
Embodiment
Fig. 1 represents to have the color picture tube 10 of glass envelope 11, and glass envelope 11 comprises rectangular panel screen 12 and the tubular neck portions 14 that is connected by cone 15.Cone 15 has one from the internal conductive coating (not shown) of anode button 16 to screen 12 and tubular neck portions 14 extensions.Screen 12 comprises a cylindrical basically panel 18 and peripheral flange or sidewall 20, and this screen is sealed on the cone 15 by frit 17.Tri-color phosphor phosphor screen 22 is by the inner surface carrying of panel 18.Phosphor screen 22 is that the fluorophor lines are the line-screen that 3 fluorescence groups are arranged, and each 3 fluorescence group comprises every kind of fluorophor lines of three kinds of colors.Tension type mask frame assembly 24 removably is mounted and with phosphor screen 22 a predetermined spaced relationship is arranged.The central interior that the electron gun 26 that with dashed lines schematically shows among Fig. 1 is installed in neck 14 to be to produce and to make three electron beams of row, and promptly electron beam and two sides or outer electron beam are aimed at phosphor screen 22 along the convergence path by tension type mask frame assembly 24 in the middle of one.
Picture tube 10 is designed to use with near the coil shown in an external magnetic deflection yoke is for example cone-neck junction surface 30.When being energized, coil 30 makes three-beam electron-beam be controlled by magnetic field, and this magnetic field makes scanning horizontally and vertically in the rectangular raster of electron beam in spreading all over phosphor screen 22 scopes.
As shown in Figure 2, tension type mask frame assembly 24 comprises and contains two relative long limit scaffold parts 32 minor face scaffold parts 36 relative with 34 and two and 38 edge frame 28.Two long limit scaffold parts 32 and 34 of this framework are parallel to the central long axis X of picture tube; Two minor faces 36 and 38 are parallel to the central minor axis Y of picture tube.Tension type mask frame assembly 24 also further comprises porose planar mask 27 and a pair of relative middleware 40.Middleware 40 end from the central authorities of every section to every section in the vertical in height changes, and makes the curvature and the tension force plasticity of the best of obtaining on whole shadow mask.
Each middleware 40 prolongs the length of elongate edge scaffold parts 32 and 34.Middleware 40 only is soldered on the edge frame 28 at 50 places, single position of long limit scaffold parts 32 and 34.Tension type mask 27 is soldered along vertical upper end edge of two parallel middlewares 40.Middleware 40 can be made by the material with thermal coefficient of expansion similar to shadow mask 27.Therefore variations in temperature is for the position almost not influence of shadow mask 27 with respect to middleware 40.
Fig. 3 is the illustration that dots middleware 40 plastic deformations of supporting tension type mask (not shown).Be positioned at long limit scaffold parts 32 and 34 positions that under the tensioning load of shadow mask (not shown), deform at the tie point shown in the middle position 50 (as 501).
Fig. 4 is the plasticity curve chart of the relation of traditional shadow mask-frame assembly plasticity form of expression and the plasticity relevant with new shadow mask-frame assembly of the present invention.More particularly, curve shows shown in Figure 4 the middleware 40 of the present invention plastic behavior of 52 and 54 (as shown in Figure 2) endways.Middleware 40 only on one point connection makes end 52 and 54 not be subjected to the outward flange constraint ground deflection of edge frame 28.Especially, because the end of middleware 40 is not connected on the edge frame 28, so middleware 40 provides the plasticity that strengthens at the edge of tension type mask.
In the another embodiment shown in Fig. 5～7, middleware 40 has a cross section that is generally T shape, and two ends 52 and 54 keep by two clamping elements 56 and 58 respectively, and this clamping element also has the opening slot part 60 upwards and the notch 62 of longitudinal extension.Middleware 40 comprises the guiding parts 64 and 66 that is arranged in above-mentioned slot part 60 and the notch 62.T shape middleware leaves at interval to limit inner chamber 68 and 70 with respect to clamping element 56 and 58 in the vertical, in this inner chamber, the internal guide elements 64 of middleware 40 and 66 supported slidably in vertical direction, so that as the guider effect that keeps middleware 40, so that when middleware 40 lengthwise movements, prevent by picture tube at work middleware 40 expand caused near the end with respect to the rotation of edge frame 28.Clamping element 56 and 58 can be by 28 otch that extend form or can be the separation members that is fixed on the framework from the edge.
An advantage of the invention is that the piece installing of tension type mask frame set provides the plasticity of shadow mask edge.The edge plasticity of this enhancing and the plasticity of improvement distribute and make framework control tension force reliably and prevent in shadow mask wrinklingly, have therefore improved the efficient in the manufacture process.In addition, the present invention provides means for shadow mask and framework use the material with visibly different thermal coefficient of expansion.
Many other possible embodiment are arranged in the scope and spirit of the present invention.For example, although long limit and minor face scaffold parts are depicted as the square tube of hollow, other are L shaped as having, to be used for these parts also be possible to the preferred structure of C shape or square-section.Therefore, tend to aforementioned description is thought illustrative and nonrestrictive, scope of the present invention is given by additional claim and its equivalent four corner.
Claims (5)
1, a kind of color picture tube with plasticity tension type mask frame assembly, this assembly is installed in the described picture tube, and it comprises:
Edge frame with middleware of relative limit scaffold parts and pair of parallel, the single position of each middleware between the end of this middleware links to each other with this framework; With
Be connected to the shadow mask on this middleware, this shadow mask is maintained between this middleware under tensioning state thus.
2, color picture tube as claimed in claim 1 is characterized in that, this edge frame also comprises the minor face scaffold parts that two relative long leg spares are relative with two, and wherein above-mentioned middleware is connected in two relative limit parts at least one.
3, color picture tube as claimed in claim 1 is characterized in that, it also comprises near the clamping element that is positioned at the above-mentioned middleware end.
4, color picture tube as claimed in claim 1 is characterized in that, above-mentioned shadow mask and above-mentioned middleware are made by the material with first thermal coefficient of expansion, and above-mentioned edge frame is made by the material with second thermal coefficient of expansion.
5, color picture tube as claimed in claim 4 is characterized in that, above-mentioned first thermal coefficient of expansion is lower than above-mentioned second thermal coefficient of expansion relatively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26276501P | 2001-01-20 | 2001-01-20 | |
| US60/262,765 | 2001-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1488158A true CN1488158A (en) | 2004-04-07 |
| CN1267955C CN1267955C (en) | 2006-08-02 |
Family
ID=22998938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028039246A Expired - Fee Related CN1267955C (en) | 2001-01-20 | 2002-01-16 | Compliant tension mask assembly |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1356491B1 (en) |
| JP (1) | JP2004518255A (en) |
| KR (1) | KR20030071842A (en) |
| CN (1) | CN1267955C (en) |
| DE (1) | DE60227341D1 (en) |
| HU (1) | HUP0302315A2 (en) |
| MX (1) | MXPA03006447A (en) |
| MY (1) | MY134117A (en) |
| WO (1) | WO2002058098A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6597095B2 (en) * | 2001-11-20 | 2003-07-22 | Thomson Licensing S. A. | Cathode ray tube mask frame assembly |
| AU2003214932A1 (en) | 2002-02-25 | 2003-09-09 | Eli Lilly And Company | Peroxisome proliferator activated receptor modulators |
| US6812628B2 (en) * | 2002-05-09 | 2004-11-02 | Thomson Licensing S.A. | Bracket for mounting a shadow mask frame |
| WO2006073392A1 (en) * | 2005-01-04 | 2006-07-13 | Thomson Licensing S. A. | Cathode ray tube having a tension mask and support frame assembly with dissimilar thermal expansion materials |
| KR200449554Y1 (en) * | 2008-02-19 | 2010-07-20 | 김경남 | Gas burner |
| KR101865757B1 (en) | 2017-12-06 | 2018-06-08 | 김기성 | Water treatment device for low impact development |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3088616B2 (en) * | 1994-08-11 | 2000-09-18 | 松下電器産業株式会社 | Method for manufacturing color selection electrode for color picture tube |
| JP3175722B2 (en) * | 1999-02-10 | 2001-06-11 | 関西日本電気株式会社 | Color cathode ray tube |
| US6246164B1 (en) * | 1999-04-01 | 2001-06-12 | Thomson Licensing S.A. | Color picture tube having a low expansion tension mask attached to a higher expansion frame |
-
2002
- 2002-01-16 JP JP2002558296A patent/JP2004518255A/en active Pending
- 2002-01-16 WO PCT/US2002/001053 patent/WO2002058098A1/en active Application Filing
- 2002-01-16 CN CNB028039246A patent/CN1267955C/en not_active Expired - Fee Related
- 2002-01-16 DE DE60227341T patent/DE60227341D1/en not_active Expired - Fee Related
- 2002-01-16 HU HU0302315A patent/HUP0302315A2/en unknown
- 2002-01-16 MX MXPA03006447A patent/MXPA03006447A/en active IP Right Grant
- 2002-01-16 EP EP02707481A patent/EP1356491B1/en not_active Expired - Lifetime
- 2002-01-16 KR KR10-2003-7009638A patent/KR20030071842A/en not_active Application Discontinuation
- 2002-01-21 MY MYPI20020223A patent/MY134117A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE60227341D1 (en) | 2008-08-14 |
| CN1267955C (en) | 2006-08-02 |
| HUP0302315A2 (en) | 2007-01-29 |
| MY134117A (en) | 2007-11-30 |
| WO2002058098A1 (en) | 2002-07-25 |
| JP2004518255A (en) | 2004-06-17 |
| MXPA03006447A (en) | 2003-09-22 |
| KR20030071842A (en) | 2003-09-06 |
| EP1356491A1 (en) | 2003-10-29 |
| EP1356491B1 (en) | 2008-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20100220 |