CN1937164A - Scoop part for cathode ray tubes and cathode ray tubes within the same - Google Patents
Scoop part for cathode ray tubes and cathode ray tubes within the same Download PDFInfo
- Publication number
- CN1937164A CN1937164A CNA2006101530829A CN200610153082A CN1937164A CN 1937164 A CN1937164 A CN 1937164A CN A2006101530829 A CNA2006101530829 A CN A2006101530829A CN 200610153082 A CN200610153082 A CN 200610153082A CN 1937164 A CN1937164 A CN 1937164A
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- Prior art keywords
- bucket
- bucket portion
- sealing
- crt
- panel
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- 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
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
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- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Provided is a scoop part for cathode ray tubes and cathode ray tubes comprising the same. The scoop part includes: a sealing brim part; a main body part having a linearity range consecutive with the outside surface of the sealing brim part and declining from the bottom of the sealing brim part to the tube axis line, and a crook consecutive from the linearity range; and a yoke part extending from the crook of the main body part.
Description
The cross reference of related application
The application requires on September 21st, 2005 to be submitted to the priority of the korean patent application 10-2005-0087726 of Korea S Department of Intellectual Property, and this application disclosure is incorporated herein by reference.
Technical field
The present invention relates to a kind of bucket portion (funnel) that is used for cathode ray tube (CRT), more specifically, relate to the bucket portion of a kind of stress relaxation and the lightweight CRT of being used for and CRT with this bucket portion.
Background technology
Cathode ray tube is used to make color television set, computer display etc., and it consists essentially of three structural details.Specifically, CRT comprises the panel that is used for display image, is arranged on the conical panel and in a tubular form and be attached to neck on the summit of this bucket portion in this panel rear.Described panel, bucket portion and neck are by the glass manufacturing.Specifically, panel and bucket portion are that desirable size and dimension is made by the fused glass block compression moulding that will be called gob.After compression moulding, adopt heat treatment panel to be made for finished product by the pin seal process of sealing column bolt pin, in annealing kiln from annealing process, polishing process and the testing process of panel elimination residual stress.
And, popular along with such as the flat-panel monitor of LCD (LCD), display of organic electroluminescence, plasma display panel (PDP) etc., the technology of studying the flatness that improves CRT and frivolous property is to compete with flat-panel monitor.Very insecure on the light and thin type CRT structure, owing to vacuum stress is easy to break.In order to overcome this looseness, utilized the method for thickening thickness of glass.But thickness of glass is thick more, and then manufacturing cost increase and product can be heavy more.In addition, because local thickening thickness of glass can improve the capability of antidetonance, but in the case, to there are differences hot property be disadvantageous to thickness in the glass.Therefore, because implosion may take place hot property, this can cause accident.
Summary of the invention
The invention provides the light-duty bucket portion of a kind of CRT of being used for, it has the splendid capability of antidetonance and hot property, and also has splendid formability.
The present invention also provides a kind of CRT, and it comprises the bucket portion of the above-mentioned CRT of being used for.
Technical purpose of the present invention is not limited to above-mentioned technical purpose, and those of ordinary skills will be well understood to the other technologies purpose that does not have description from the following description.
According to an aspect of the present invention, provide a kind of bucket portion that is used for cathode ray tube (CRT), this bucket portion comprises: sealing the margin portion; Main part, it has from the outer surface of sealing edge part continuously and the linearity range that tilts to tube's axis from the bottom of sealing edge part, and from the continuous bend of this linearity range; And from yoke portion that the bend of this main part extends.
According to a further aspect in the invention, provide a kind of bucket portion that is used for cathode ray tube (CRT), this bucket portion comprises: sealing the margin portion; Main part, it has from the outer surface of sealing edge part continuously, become the about 1 smooth curved section of spending the angles of about 5 degree with this tube's axis from the bottom of sealing edge part to tube's axis bending and tangent line, and from the continuous bend of this bending section; And from yoke portion that the bend of this main part extends.
In accordance with a further aspect of the present invention, CRT comprises the bucket portion of the aforesaid CRT of being used for.
Other details of illustrative embodiments are contained in following detailed and the accompanying drawing.
From disclosing below in conjunction with accompanying drawing the detailed description of exemplary embodiment of the invention, those of ordinary skills are with clear and definite other purposes of the present invention, advantage and feature.But the present invention is not limited to described illustrative embodiments, and can be configured to dissimilar.Described illustrative embodiments has been finished of the present invention open, and be provided at herein so that those of ordinary skills' understanding by the claim and the scope of the invention that equivalent limited thereof.In full, similar label refers to similar element.
Can use with the term of space correlation " ... following ", " ... under ", D score, " in ... top ", " on " or the like to be easy to describe between a device and other devices or the correlation between structural detail and other structural details, as shown in appended accompanying drawing.These with the term of space correlation it must be understood that be comprised with when using towards direction shown in the accompanying drawing or the term of different device directions during operating means.For example, when as shown in the figure device of upset, described device at another device " below or under " can be placed on this another device " top ".Therefore, term " ... following or ... under " can comprise such as " ... following or ... under " and the both direction of " in ... top ".This device can be faced other direction.In the case, can explain according to faces direction with the term of space correlation.
Used in this specification term is used to describe illustrative embodiments, and the present invention is not limited to this.In this manual, short of special being illustrated, singulative comprises plural form." comprise " not getting rid of and also exist or additional other structural detail, step, operation and/or device with respect to described structural detail, step, operation and/or device.
Description of drawings
Above-mentioned and/or other aspects of the present invention and advantage will become clear and definite and be more readily understood from the detailed description below in conjunction with accompanying drawing:
Fig. 1 is the viewgraph of cross-section according to the CRT of exemplary embodiment of the invention;
Fig. 2 is the plane graph according to the CRT of exemplary embodiment of the invention;
Fig. 3 a-3c is the partial cross-sectional view based on the stress distribution of minor axis, major axis and diagonal axes that illustrates respectively according to an illustrative embodiment of the invention;
Fig. 4 a and 4b be illustrate according to an illustrative embodiment of the invention with stress relaxation band attaching before the joint portion of bucket portion and panel and stereogram afterwards;
Fig. 5 is the partial cross-sectional view that illustrates the joint portion of the bucket portion of CRT according to an illustrative embodiment of the invention and panel;
Fig. 6 is the partial cross-sectional view of the bucket portion of dissecing based on diagonal axes according to an illustrative embodiment of the invention; And
Fig. 7 is the partial cross-sectional view according to the bucket portion of dissecing based on diagonal axes of another illustrative embodiments of the present invention.
Embodiment
Below concrete its example is shown in the drawings with reference to illustrative embodiments of the present invention, wherein similar in the text reference number refers to similar element.Embodiment is described below with by the present invention being described with reference to these accompanying drawings.
Hereinafter, with reference to the cathode ray tube (CRT) of Fig. 1 description according to exemplary embodiment of the invention.Fig. 1 is the viewgraph of cross-section of CRT 500 according to one exemplary embodiment.
With reference to Fig. 1, CRT 500 comprises the panel 100 that is used for display image, taper shape bucket portion 200 and the neck 300 that is connected in panel 100.
In the end of the yoke portion 250 of bucket portion 200, form the roundlet opening.And neck 300 is attached on the roundlet opening.In the case, in neck 300, be provided with electron gun (not shown).The tube's axis of the symbol Y indication CRT 500 that does not describe.
Fig. 2 is the plane graph of CRT 500 according to an illustrative embodiment of the invention.Fig. 3 a-3c is the partial cross-sectional view based on the stress distribution of minor axis, major axis and diagonal axes that illustrates respectively according to an illustrative embodiment of the invention.
By electron gun being installed in the neck 300 and carrying out exhaust gas inside CRT 500 is used as Dewar bottle.In the case, the interior pressure of CRT 500 for example remains on about 10
-8Torr.And, because air pressure load, at the outer surface of CRT 500 vacuum stress appears.Therefore, need be enough to tolerate machinery that breaks and the structural strength that causes by vacuum stress for CRT500 provides.
In addition, as shown in Figure 2, because CRT 500 is an aspheric surface shape, so CRT 500 is based on minor axis X
a, major axis X
bAnd diagonal axes X
cHas different stress distribution respectively.Each stress distribution is shown among Fig. 3 a-3c, and inside arrow is indicated compression and outside arrow indication tension stress.
With reference to Fig. 3 a and 3b, tension stress is along the minor axis X of CRT 500
aA part and major axis X
bAct on the bight of panel 100 consumingly, promptly based on joint portion and the skirt portion 120 of panel 100 with bucket portion 200.Simultaneously, compression acts on the central portion of panel 100 and the main part 230 of bucket portion 200 consumingly.In general and since the tension stress of CRT glass than compressive stress property a little less than, and panel 100 and bucket portion 200 be bonded to each other by the seal glass such as frit, so the joint portion of the zone of skirt portion 120 and panel 100 and bucket portion 200 can be easy to destroy.Therefore, need guarantee that there is enough intensity in corresponding portion.Can be in conjunction with the method that the thickness of glass of corresponding portion is thickeied relatively as example.Specifically, the skirt portion 120 of panel 100 can form and have with the roughly the same thickness of the face 110 of panel or less than facial 110 thickness.And, although forming, panel 100 and the joint portion of bucket portion 200 have the thickness identical with the skirt portion 120 of panel 100, the thickness of this joint portion also can be along becoming thinner towards the main part 230 of bucket portion 200 and the direction of yoke portion 250.As desirable example, because tension stress is at minor axis X
aThe strongest in the part, the central portion on therefore long limit can form thinlyyer than minor face.
In addition, in Fig. 3 c, the diagonal axes X of CRT 500
cHave and minor axis X
aWith major axis X
bThe similar stress distribution of stress distribution, but tension stress intensity is relatively low.Therefore, relatively little such as increasing thickness with the structural demand for control that strengthens intensity etc.
Fig. 4 a and 4b illustrate stress relaxation band attaching before the joint portion of according to an illustrative embodiment of the invention bucket portion and panel and the stereogram of outward appearance afterwards.
As the example of replenishing the CRT glass intensity at tension stress, can utilize the method for aforesaid increase CRT thickness of glass.But, in the case, increase thickness too much and can increase cost, and also can hinder the lightness of CRT.And, although can be by guaranteeing that tension stress improves explosion-proof performance owing to increase local glass thickness,, can there be disadvantage in this aspect hot property.Specifically, when breaking out of fire or analogue, implosion can take place, and then cause safety problem.
Therefore, stress relaxation band 400 can be attached on the joint portion of panel 100 and bucket portion 200, replenishing strength of glass at tension stress, and exceed the increase thickness of glass.Stress relaxation band 400 is the quadra shape and opens wide.And stress relaxation band 400 is made by the material that has sufficient intensity such as metal etc. and also have a splendid percentage elongation.
Therefore, shown in Fig. 4 a, it is little with the joint portion of bucket portion 200 that stress relaxation band 400 formed before stress relaxation band 400 is attached on the joint portion of panel 100 and bucket portion 200 size ratio panels 100.When heating stress relaxation band 400, owing to improved percentage elongation, stress relaxation band 400 is extended.Therefore, shown in Fig. 4 b, be placed on the top of the skirt portion 120 of panel 100 and bucket portion 200 with the joint portions that cooperate panel 100 and bucket portion, the stress relaxation band 400 that will extend and cooling stress relaxes when being with 400 when initial elongation stress is lax with 400, stress relaxation band 400 is tightened panel 100 and bucket portion 200 securely in contraction.In the case, generation is towards the compression stress of the inward direction of panel 100 and bucket portion 200.This compression stress has reduced tension stress.Therefore, although there is not too much to increase the thickness of glass of panel 100 and the joint portion of bucket portion 200, improved the tension stress of CRT glass.
Fig. 5 is the partial cross-sectional view that illustrates the joint portion of the bucket portion of CRT according to an illustrative embodiment of the invention and panel.
As mentioned above, panel 100 is connected to skirt portion 120 from facial 110 via engaging round edge portion 130.At this, skirt portion 120 is basically perpendicular to panel 100.In addition, bucket portion 200 is from sealing the margin portion 210 usually via the smooth surface shape of main part 230 to yoke portion 250.The basal surface of sealing the margin portion 210 is corresponding to the border surface between sealing the margin portion 210 and the main part 230, and becomes the mould matching surface when for example each is made by different moulds in sealing the margin portion 210, main part 230 and yoke portion 250.
At this, the joint portion that is provided with the panel 100 of stress relaxation band 400 and bucket portion 200 arrives the top of the main part 230 of level and smooth aduncate bucket portion 200 from the skirt portion 120 of panel 100.At this, skirt portion 120 is roughly linear.Therefore, stress relaxation band 400 can present splendid compression stress, that is, by the stress relaxation effect of combining closely, but the stress relaxation band can local fluff or can slide along the direction towards the bottom of level and smooth aduncate bucket portion 200.Specifically, because close attachment dies down, compression stress also dies down.Therefore, stress relaxation band 400 is no longer fixing, and can not reduce the tension stress in the bucket portion 200 effectively thus.
With reference to Fig. 5, band attaching surface 234 is along the joint portion of bucket portion 200 with panel 100, and promptly the upper surface of the main part 230 of bucket portion 200 forms, and fluffs or skids in bucket portion 200 so that prevent stress relaxation band 400.The vertical section linearity range that comprises at least a portion on band attaching surface 234, it helps stress relaxation band 400 close attachment to bucket portion 200.Therefore, can obtain adequate compressive forces and tension stress relaxation effect.
Hereinafter, will describe the band attaching surface 234 of bucket portion 200 with further reference to Fig. 6 in detail.Fig. 6 is the partial cross-sectional view of the bucket portion of dissecing based on diagonal axes according to an illustrative embodiment of the invention.
The tension stress relaxation effect that is delivered to panel 100 and bucket portion 200 by stress relaxation band 400 can be passed to square long limit, minor face and the bight of panel 100 and bucket portion 200.But,, thereby be very important along the close attachment of diagonal axes Xc because the compression stress of stress relaxation band 400 in the bight is the strongest.Therefore, as example, explanation is shown cross-sectional view based on the bight of diagonal axes Xc.
With reference to Fig. 6, under sealing the margin portion 210, bucket portion 200 has curved surface substantially, but forms linear section a in the perimeter that is connected to sealing the margin portion 210 of main part 230.Linear section a is connected to bending section r in the bottom of linear section a.At this, linear section a is corresponding to the band attaching surface 234 at stress relaxation band 400 attaching places.
In addition, linear section a has predetermined angle of inclination with respect to tube's axis Y, to be convenient to from mold separation.Specifically, because the linear section lower tilt towards bucket portion 200, therefore linear section a is gradually near tube's axis Y.In the case, the terminal point a2 of linear section a of the upper/lower positions of linear section a and originate in and the starting point a1 of the 210 contacted linear section a of sealing the margin portion and the distance D 1 that is parallel between the straight line of tube's axis Y short more good more.For example, distance D 1 can be less than 1mm.And, consider the formability of utilizing mould, distance D 1 can be greater than 0.1mm.
And, consider formability, the tiltangle between linear section a and the tube's axis Y
1Can be greater than 1 degree, and consider and the tack of stress relaxation band 400 that this inclination angle can be less than 10 degree.
And the inner surface corresponding to linear section a of bucket portion 200 is the curved surface shape.Because the inclination angle of the tangent line of the crooked inner surface of this bucket portion 200 is greater than the tiltangle of linear section a
1Therefore, in linearity range a, bucket portion 200 is thickening gradually towards the bottom of bucket portion 200.Specifically, bucket portion 200 becomes and has the same thick with the virtual outer surface of the bucket portion 200 of the roughly the same curvature of the inner surface of bucket portion 200 and the spacing that has between the outer surface of linearity range a at less inclination angle.In this case, it is long more that linearity range a becomes, and the spacing between linearity range a and the virtual outer surface is big more.And bucket portion 200 becomes thicker.Therefore, need the length of control linearity range a so that do not influence the lightness of CRT 500.More particularly, control from perpendicular to the bottom of the sealing the margin portion 210 of tube's axis Y to the distance h the terminal point a2 of linearity range a.When sealing the margin portion 210 is not orthogonal to when being made non-vertical tube's axis Y a little or wittingly, distance h can be passed through h=a*cos θ
1Calculate.In other words, distance h can be defined as the distance of the vertical line of the tube's axis Y from the starting point a1 of linearity range a to the terminal point a2 by linearity range a.
At this, distance h is controlled to be with the width of sealing the margin portion 210 proportional, and this width is corresponding to the thickness T of the sealing the margin portion 210 in the plan view.Specifically, the width T of sealing the margin portion 210 hour, distance h also diminished.When the width T of last sealing the margin portion 210 was big, distance h also was to become big.For example, the width T of sealing the margin portion 210 can be controlled at about 0.9 in about 6.7 scope with the ratio T/h of the distance h of terminal point a2 from sealing the margin portion 210 to linearity range a.
Fig. 7 is the partial cross-sectional view of the bucket portion of dissecing based on diagonal axes of another illustrative embodiments according to the present invention.
Different with the illustrative embodiments of the invention described above is, does not have linearity range among Fig. 7, but be provided with smooth curved section b as the main part 230 of bucket portion 200 with sealing the margin portion 210 contacted zones in band attaching surface 235.The bend r of main part 230 is connected to smooth curved section b.In this case, the angle between the tangent line of smooth curved section b and the tube's axis Y can be spent between about 5 degree about 1.And, as mentioned above,, thereby in the bight, can produce stronger close attachment because the compression stress of the stress relaxation band 400 in the bight of bucket portion 200 is the strongest.Therefore, based on diagonal axes X
cIn the cross section of dissecing, angle θ
2Can spend between about 3 degree about 1.
In the case, when the radius of curvature of smooth curved section b becomes too hour, the terminal point b2 of smooth curved section b and originate in starting point b1 and the distance D 2 that is parallel between the straight line of smooth curved section b of tube's axis Y can become excessive.Therefore, need suitably control radius of curvature also can be controlled to be distance D 2 thus between about 0.1mm and approximately between the 1mm.
Dissect and the cross section of having improved the close attachment in the strongest bight of the compression stress of stress relaxation band although described based on diagonal axes with reference to Fig. 6 and Fig. 7, above the situation with capability conflicts of being described in not under applicable to the cross section of dissecing based on minor axis or major axis.In addition, this description can be applicable to the cross section dissectd based on other.
Will be in conjunction with following test sample explanation further specific descriptions related to the present invention.Omitted description known or that can derive technically by those of ordinary skills, indeterminate to prevent the understanding of the present invention.
＜test sample 1 〉
The bucket portion for preparing 29 inches, it has 120 drift angles of spending, comprises the sealing the margin portion and the linearity range that are positioned at the main part top that the outer surface of this linearity range tilts to tube's axis from the bottom of sealing the margin portion.In this case, the angle between linearity range and the tube's axis is in 3 degree, and the end of linearity range and originate in starting point and the distance that is parallel between the straight line of linearity range of tube's axis is about 0.2mm.And, the width of sealing the margin portion, promptly sealing the margin portion thickness (SET) is about 12.5mm.
Prepare 29 inches surface plate, it has the radius of curvature of about 10000mm, and above-mentioned bucket portion is attached to the skirt portion of this panel by frit.
And preparation and heating size are less than the stress relaxation band of the quadra shape of this panel.Next, through the stress relaxation band elongation of heating and attaching on the linearity range of the skirt portion of panel and bucket portion.After with stress relaxation band cool to room temperature, be approximately 10 by pressing in the exhaust process manufacturing
-8The gob that is used for CRT of Torr.
＜compare test example 1 〉
Except linearity range not being set and under the sealing the margin portion of bucket portion, being provided with the surface of general curved, use the method manufacturing identical to be used for the gob of CRT with test sample 1.
＜compare test example 2 〉
Except linearity range is not set, the surface that general curved is set under the sealing the margin portion of bucket portion and stress relaxation band only are attached on the panel, use the method manufacturing identical to be used for the gob of CRT with test sample 1.
＜compare test example 3 〉
Except the width in sealing the margin portion on the top of bucket portion approximately is 13mm, linearity range is not set and is provided with the surface of general curved under the sealing the margin portion of bucket portion, use the method manufacturing identical to be used for the gob of CRT with test sample 1.
＜compare test example 4 〉
Except the width in sealing the margin portion on the top of bucket portion approximately be 13.5mm, linearity range is not set, the surface that general curved is set under the sealing the margin portion of bucket portion and stress relaxation band only are attached on the panel, use the method manufacturing identical to be used for the gob of CRT with test sample 1.
After the gob of weighing, detect the mating surface of panel and bucket portion and the stress in the bucket portion main part around this mating surface according to test sample 1 and compare test example 1-4 manufacturing.Also detect the band tack, that is, whether the stress relaxation band closely is attached in the bucket portion, and does not slide in bucket portion.And, according to world blast testing standard International Electrotechnical Commission (IEC) 61965 test of exploding.And, under greater than 1000 degrees centigrade temperature, gob is heat-treated, and the hot property of tested glass base.Test result is shown in Table 1.
＜table 1 〉
| Test sample 1 | Compare test example 1 | Compare test example 2 | Compare test example 3 | Compare test example 4 | |
| Weight (kg) | 8.5 | 8.3 | 8.3 | 9.9 | 10.4 |
| Mating surface stress (MPa) | 9.8 | 10.2 | 12.7 | 10.3 | 10.1 |
| Bucket portion stress (MPa) | 8.2 | 11.2 | 11.2 | 8.4 | 8.3 |
| The band tack | 0 | X | 0 | X | X |
| The blast test | 0 | Δ | X | 0 | 0 |
| The heat treatment test | 0 | X | X | X | X |
In table 1, ' 0 ' indication did not detect when both slip has also been blasted or test result is qualified.' X ' indication detects when sliding or blasting or test result is a fault.And ' Δ ' indicates the intermediateness between qualified and the fault.
With reference to table 1, in compare test example 1, weight is functional, but the band tack is not good.Simultaneously, stress occurs in mating surface and bucket portion consumingly.Therefore, explosion property is good and hot property is relatively poor.In compare test example 2, weight and band tack are good, and explosion property and hot property are relatively poor.
In compare test example 3, the width by increasing edge part is so that improve the explosion property test passes of exploding, but because the difference in thickness between sealing the margin portion and the main part, heat treatment performance is relatively poor.And weight is about 9.9kg, compares comparatively heaviness with test sample 1, and because a little less than the band tack, the stress relaxation band is easy to slide.In compare test example 4, except the blast test, weight performance, band tack and heat treatment test also are relatively poor.
On the other hand, in test sample 1, the stress relaxation band is attached on the mating surface of panel and bucket portion, and bucket portion comprises linearity range, and weight is about 8.5kg, and is in light weight, and the band tack is splendid, and tack test and heat treatment test be qualified.Specifically, in above-mentioned example, test sample 1 presents best gob performance.Therefore, the CRT that comprises the gob of making according to test sample 1 can have improved explosion property and heat treatment performance.And this CRT can be frivolous.
The linearity range of the bucket portion of above-mentioned illustrative embodiments or smooth curved section are not separately independently according to the present invention, but combination in every way and setting as required.For example, linearity range can be arranged on the local surfaces of bucket portion, and the smooth curved section can be arranged on another local surfaces of bucket portion.And linearity range and level and smooth bending section also can be present in the part that constitutes single band attaching surface jointly.For example, the smooth curved section can be continuously in the linearity range setting.
In addition, linearity range and level and smooth bending section can not fit like a glove with band attaching surface.Even when the band mating surface is partly crossed this part or is shorter than this part, also can improve stress relaxation ability.
In addition, the linearity range of the bucket portion of above-mentioned illustrative embodiments or smooth curved section are not complete outer surface setting along bucket portion according to the present invention.Linearity range or smooth curved section can be only in the zone that allows to be shaped along the part setting of bucket portion.Even in this case, also can guarantee explosion property and hot property on the whole.
As mentioned above,, provide the bucket portion of a kind of CRT of being used for, wherein by in the top of bucket portion, comprising linearity range or the smooth curved section has been improved tack according to the present invention.Therefore, bucket portion can lighten and also can have improved explosion-proof performance and hot property.In this case, because linearity range has specific inclination angle, thereby the bucket portion that is used for CRT has splendid formability.
Although illustrated and described several exemplary execution mode of the present invention, the present invention is not limited to described illustrative embodiments.On the contrary, one of ordinary skill in the art will appreciate that can make amendment and do not break away from principle of the present invention and essence these illustrative embodiments, scope of the present invention be limited by claim and equivalent thereof.
Claims (8)
1. bucket portion that is used for cathode ray tube (CRT), this bucket portion comprises:
Sealing the margin portion;
Main part, it has from the outer surface of sealing edge part continuously and the linearity range that tilts to tube's axis from the bottom of sealing edge part and from the continuous bend of this linearity range; And
From the yoke portion that the bend of this main part extends.
2. bucket as claimed in claim 1 portion, wherein, originate in and the described contacted starting point of sealing the margin portion and be roughly parallel to described tube's axis linearity range straight line and and the terminal point of the contacted linearity range of described bend between distance between about 0.1mm with approximately between the 1mm.
3. bucket as claimed in claim 1 portion, wherein, the angle between described linearity range and the described tube's axis is between about 1 degree and about 10 degree.
4. bucket as claimed in claim 1 portion, wherein, the width of described sealing the margin portion and the starting point of linearity range and by and the vertical line of the tube's axis of the terminal point of the contacted linearity range of bend between the ratio of distance between about 0.9 and about 6.7.
5. bucket portion that is used for CRT, this bucket portion comprises:
Sealing the margin portion;
Main part, its have from the outer surface of sealing edge part continuously, between tube's axis bending and tangent line and this tube's axis, becomes about 1 to spend the smooth curved section of about 5 angles of spending and from the continuous bend of this bending section from the bottom of sealing edge part; And
From the yoke portion that the bend of this main part extends.
6. bucket as claimed in claim 1 portion, wherein, originate in and the described contacted starting point of sealing the margin portion and be roughly parallel to described tube's axis the smooth curved section straight line and and the terminal point of the contacted smooth curved end of described bend between distance between about 0.1mm with approximately between the 1mm.
7. cathode ray tube (CRT) comprises:
The panel of display image;
The bucket portion that is used for CRT, this bucket portion are that it is connected in described panel as each described bucket portion of claim 1-4;
The stress relaxation band, it is attached on the linearity range of panel side surface and bucket portion; And
Neck, it is connected in described bucket portion and is provided with electron gun.
8. cathode ray tube (CRT) comprises:
The panel of display image;
The bucket portion that is used for CRT, this bucket portion are that it is connected in described panel as claim 5 or 6 described bucket portions;
The stress relaxation band, it is attached on the smooth curved section of panel side surface and bucket portion; And
Neck, it is connected in described bucket portion and is provided with electron gun.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050087726A KR20070033501A (en) | 2005-09-21 | 2005-09-21 | Funnel for cathode ray tube and cathode ray tube having the same |
| KR1020050087726 | 2005-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1937164A true CN1937164A (en) | 2007-03-28 |
Family
ID=37954582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101530829A Pending CN1937164A (en) | 2005-09-21 | 2006-09-21 | Scoop part for cathode ray tubes and cathode ray tubes within the same |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20070033501A (en) |
| CN (1) | CN1937164A (en) |
-
2005
- 2005-09-21 KR KR1020050087726A patent/KR20070033501A/en not_active Application Discontinuation
-
2006
- 2006-09-21 CN CNA2006101530829A patent/CN1937164A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20070033501A (en) | 2007-03-27 |
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