CN1822301A - Panel for slim cathode ray tubes - Google Patents
Panel for slim cathode ray tubes Download PDFInfo
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- CN1822301A CN1822301A CNA200610007106XA CN200610007106A CN1822301A CN 1822301 A CN1822301 A CN 1822301A CN A200610007106X A CNA200610007106X A CN A200610007106XA CN 200610007106 A CN200610007106 A CN 200610007106A CN 1822301 A CN1822301 A CN 1822301A
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- cathode ray
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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
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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
- H01J29/87—Arrangements for preventing or limiting effects of implosion of vessels or containers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/244—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for cathode ray tubes
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Disclosed herein is a panel of a slim cathode ray tube constructed such that the deflection angle of an electron beam is 110 degrees or more. The slim cathode ray tube includes a tube part constituted by joining the panel and a funnel with each other. The panel includes a face part, a side wall disposed around the face part such that the side wall is bent toward the funnel, and a seal edge formed at the side wall, the panel being joined with the funnel at the seal edge. On the assumption that the thickness of the center of the face part is Tc, the thickness of the long side of the seal edge is Tx, the thickness of the short side of the seal edge is Ty, and the thickness of the diagonal part of the seal edge is Td, the panel is constructed such that the following inequalities are satisfied: 0.8<=Tc/Ty<=Tc/Tx<=1.0<=Tc/Td and Td<Tx<Ty, and the side wall has an outer skirt angle of 0.5 to 1.5 degrees.
Description
Technical field
The present invention relates to a kind of slim cathode ray tubes, more particularly, the present invention relates to a kind of display screen that is used for color cathode ray tube, wherein the center thickness of this display screen and the thickness of sealing the margin can be set suitably, and the outward flange angle of display screen can suitably be set, thereby the stress that will produce because of the increase of drift angle is concentrated and is reduced to minimum, guarantees enough rigidity, improves the anti-riot characteristic and the plasticity of display screen and effectively prevents the reinforcing band slippage.
Background technology
Usually, cathode ray tube be a kind of be used for converting electrical signal be electron beam and make electron beam in scanning on the phosphor screen with the equipment of display image on display screen.
Fig. 1 is the partial cross sectional side elevation view that conventional cathode ray tube is shown, and Fig. 2 is the cutaway view that the display screen that constitutes conventional cathode ray tube is shown.
As illustrated in fig. 1 and 2, conventional cathode ray tube comprises and is connected to each other display screen 1 and the tapering part 2 that together constitutes tube portion 10.
The inside of display screen 1 is provided with shadow mask 3, and framework 4 is supporting shadow mask 3 like this, so that shadow mask 3 is approaching parallel with display screen 1.By spring 5, framework 4 is fixed on the display screen 1.Inner shield 6 is set in tapering part 2, is used to shield magnetic field externally, to prevent that externally magnetic field makes the bending of electron beam path.
At the rear portion of tapering part 2 electron gun 7 is set, is used to produce electron beam.Deflection system 8 is installed outside the neck of tapering part 2, is used to make about 110 degree of the electron beam deflecting or below 110 degree.
In having the conventional cathode ray tube of said structure, deflection system 8 make electron gun 7 electrons emitted bundles upwards, downwards, left, deflection to the right, then, make electron beam be sent to display screen 1.Specifically, deflection beam then, is sent to the phosphor screen 9 on the inner surface that is sprayed on display screen 1 by the through hole of shadow mask 3.At this moment, it is luminous that the energy of electron beam makes phosphor screen 9.Therefore, reproduced image, so that user like this can be seen the image that reproduces by display screen 1.
Simultaneously, utilize melten glass material sealing technology, sealing the margin 1x, 1y and 1d at display screen 1, display screen 1 is connected to each other with tapering part 2 is in the same place, utilize follow-up packaging technology electron gun 7 to be assembled to the rear portion of tapering part 2, then, utilize air aspiration process, in tube portion 10, form vacuum.Like this, just made cathode ray tube.
When tube portion 10 is in vacuum state, display screen 2 and tapering part 2 are applied sizable tension force and compression.
Particularly, when the total length of tube portion 10 reduced, the internal volume of tube portion 10 is also corresponding to be reduced.Therefore, increased the stress that tube portion 10 is applied.Recently, the neck of tapering part 2 is formed rectangle, reducing the required electric current of deflection beam, and therefore reduce the power consumption of deflection system 8.Yet, in this case, further increased the stress that tube portion 10 is applied.
With reference to figure 2, CFT represents the thickness at display screen 1 center, and SET represents that display screen 1 and tapering part are 2 that link together, the thickness of the sealing the margin of display screen 1.Specifically, SET (Tx) expression is positioned at the thickness of the sealing the margin of the display screen 1 that long leg divides, SET (Ty) expression is positioned at the thickness of sealing the margin of the display screen 1 of short side part, and SET (Td) expression is positioned at the thickness of sealing the margin of the display screen 1 of diagonal angle part.
When the CFT of display screen 1 reduced, the stress of tube portion 10 concentrated on the display screen 1.On the contrary, (when Td) reducing, stress concentrates on the sealing the margin of display screen 1 for Tx, Ty, therefore, has increased the probability that destroys tube portion 10 at the SET of display screen 1.
Therefore, for the stress of suitable distribution display screen 1, being provided with of CFT and SET is extremely important.Specifically, when CFT and SET are big, prevent that stress from concentrating on the specific part on the display screen 1, as shown in Figure 3.Yet, reduced the cumulative volume of display screen 1, therefore, also increased the manufacturing cost of display screen 1.
In a word, the CFT of display screen 1 and SET being set is the process of finding the optimum that concerns between stress and the cost.
On the conventional cathode ray tube that has 110 degree deflection structures as mentioned above, the length of tapering part 2 is greater than the length of display screen 1, and the neck of tapering part 2 forms smooth curved shape.Therefore, stress does not concentrate on the tapering part 2, thereby, do not need distributed stress.
Because this reason designs display screen 1 like this, so that as shown in Figure 4, on All Ranges, (ratio Td) is identical for Tx, Ty for the CFT of display screen 1 and SET.The CFT that changes display screen 1 and SET (Tx, when Ty, Td) ratio, stress is as broad as long, therefore, the reduction of cost is not remarkable.Specifically, according to the size and the drift angle of tube portion 10, CFT is different slightly with the ratio of SET.
Yet recently the deflection structure of the slim cathode ray tubes of exploitation has 110 degree or greater than the drift angles of 110 degree.In addition, reduce the total length of slim cathode ray tubes, therefore, reduced the internal volume of slim cathode ray tubes.As a result, to display screen and the further stress application of tapering part.Therefore, require the CFT of display screen 1 and the ratio of SET suitably are set, to prevent that effectively display screen and tapering part are applied excessive stresses.
Simultaneously, when tube portion 10 is in vacuum state, display screen 1 and tapering part 2 are applied sizable tension force and compression.With reference to figure 2 and 5, when tube portion 10 was in vacuum state, sealing the margin 1x, 1y and the 1d of the side wall ends by being positioned at display screen 1, display screen 1 bore the Stress Transfer of external impact to tapering part 2.Therefore, can reduce the stress of display screen 1 slightly.
Therefore, the sidewall 1s of display screen 1, that is, the reliability of sealing the margin 1x, the 1y of display screen 1, the thickness SET of 1d and the equal target ray tube of shape has appreciable impact.
Particularly, thickness and shape to the sealing the margin of the anti-riot characteristic of external impact and pyrophoric behavio(u)r and display screen 1 have substantial connection, when making cathode ray tube, when making tube portion 10 pass through heating furnace, to utilize the frit welding method, when making display screen 1 and tapering part 2 be connected to each other together, produce this pyrophoric behavio(u)r.In addition, when increasing, reduced the manufacturing productivity ratio of pipe 10 at the external margin angle of sidewall.
On traditional display screen 1, external margin angle S is near 3 to 4 degree.Divide 1x at long leg, external margin angle S maximum.At short side part 1y, external margin angle S minimum.The external margin angle S that is positioned at diagonal angle part 1d is less than being positioned at the external margin angle S that long leg divides 1x, and greater than the external margin angle S that is positioned at short side part 1y.
On the display screen 1 of aforesaid cathode ray tube, the external margin angle S of display screen 1 is more than 3 degree or 3 are spent, and external margin angle S is set, so that external margin angle S divides 1x maximum at long leg, external margin angle S is in short side part 1y minimum, and the external margin angle S that is positioned at diagonal angle part 1d is less than being positioned at that long leg divides the external margin angle S of 1x and greater than the external margin angle S that is positioned at short side part 1y.Therefore, long leg divides the thickness SET of 1x thickness SET less than short side part 1y, thereby, reduced anti-riot characteristic.
In addition, as shown in Figure 1, twine reinforcing band 11, be applied to big stress on the display screen 1 with distribution around sidewall 1s.Yet as mentioned above, when the external margin angle of display screen 1 S was big, slippage took place in reinforcing band 11 easily.Therefore, be difficult to carry out reinforcing band and twine processing, and when reinforcing band 11 slippages, be difficult to the stress that effectively distributes tube portion 10 is applied.
Summary of the invention
Therefore, in view of the above problems, designed the present invention, and the purpose of this invention is to provide a kind of display screen that is used for slim cathode ray tubes, it can even like this distribution concentrates on the stress on the tapering part because the total length of the tapering part that 110 degree or the above wide-angle deflection of 110 degree cause shortens, so that can keep enough rigidity on slim cathode ray tubes.
Another object of the present invention provides a kind of display screen that is used for slim cathode ray tubes, the ratio of long leg branch, short side part and the diagonal angle part of the sealing the margin of the CFT by display screen suitably is set and this display screen wherein, optimize the thickness of the sealing the margin of this display screen, cause stress to be concentrated to prevent because of the increase of drift angle, thereby during making tube portion, prevent to destroy display screen, therefore, satisfied the implosion principle.
Another purpose of the present invention provides a kind of display screen that is used for slim cathode ray tubes, wherein the external margin angle of the sidewall of this display screen is set to 0.5 to 1.5 degree, thereby improve the anti-riot characteristic and the plasticity of display screen, and can effectively prevent the reinforcing band slippage.
According to an aspect of the present invention, can realize above-mentioned and other purposes by a kind of display screen that is used for slim cathode ray tubes is provided, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is more than 110 degree or 110 are spent, this slim cathode ray tubes comprises the tube portion that engages one another and constitute together by with display screen and tapering part, wherein display screen comprises: screen part, display image on it; Sidewall be provided with around the screen part like this, so that sidewall is to the tapering part bending; And sealing the margin, be formed on the sidewall, on the sealing edge, display screen and tapering part are bonded together, the thickness of supposing screen part center is Tc, the thickness on the long limit of sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td, then construct display screen like this, so that the inequality below satisfying: 0.8≤Tc/Ty≤Tc/Tx≤1.0≤Tc/Td, and Td＜Tx＜Ty, and sidewall has the external margin angle of 0.5 to 1.5 degree.
The preferred display screen of structure like this, so that the inequality below satisfying: 0.75＜Td/Tx＜1.0 and 0.74＜Td/Ty＜1.0.
The total length of tube portion is preferably 350mm or less than 350mm, the diagonal-size of display screen near 700 to 800mm.
Preferably with display screen near forming rectangular configuration, and the external margin angle is set like this, so that the inequality below satisfying: be positioned at the external margin angle on long limit, the external margin angle of the external margin angle of minor face＞be positioned at diagonal angle part＞be positioned at.
According to another aspect of the present invention, a kind of display screen of slim cathode ray tubes is provided, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is more than 110 degree or 110 are spent, this slim cathode ray tubes comprises the tube portion that engages one another and constitute together by with display screen and tapering part, wherein display screen comprises: screen part, display image on it; Sealing the margin, be provided with around the screen part like this, so that sealing the margin is to the tapering part bending, and on the sealing edge, display screen and tapering part are bonded together, and the thickness of supposition screen part center is Tc, the thickness on the long limit of sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td, then construct display screen like this, so that the inequality below satisfying: 0.8≤Tc/Ty≤Tc/Tx≤1.0≤Tc/Td.
One of the preferred display screen of structure like this, so that the inequality below satisfying: Td＜Tx＜Ty, Td＜Tx≤Ty and Td≤Tx＜Ty.
According to another aspect of the present invention, a kind of display screen of slim cathode ray tubes is provided, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is more than 110 degree or 110 are spent, this slim cathode ray tubes comprises the tube portion that engages one another and constitute together by with display screen and tapering part, wherein display screen comprises: sealing the margin, like this around being provided with, so that sealing the margin is to the tapering part bending, on the sealing edge, display screen and tapering part are bonded together, and the thickness on long limit of supposition sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td, then construct display screen like this, so that the inequality below satisfying: Td＜Tx＜Ty.
The preferred display screen of structure like this, so that the inequality below satisfying: 0.75＜Td/Tx＜1.0 and 0.74＜Td/Ty＜1.0.
According to a further aspect of the invention, a kind of display screen of slim cathode ray tubes is provided, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is more than 110 degree or 110 are spent, this slim cathode ray tubes comprises the tube portion that engages one another and constitute together by with display screen and tapering part, and wherein display screen comprises sidewall, like this around being provided with, so that sidewall is to the tapering part bending, and this sidewall has the external margin angle of 0.5 to 1.5 degree.
Preferably with display screen near forming rectangular configuration, and the external margin angle is set like this, so that the inequality below satisfying: be positioned at the external margin angle on long limit, the external margin angle of the external margin angle of minor face＞be positioned at diagonal angle part＞be positioned at.
According to the present invention, the thickness of long limit, minor face and the diagonal angle part of the thickness of display screen center and sealing the margin suitably is set, with even distribution because the increase of drift angle and the stress of concentration of local on tube portion.Therefore, even shortened the total length of tube portion, the present invention still has the effect of improving anti-riot characteristic and guaranteeing enough rigidity.
The thickness of the sealing the margin of display screen suitably is set according to the present invention in addition.Therefore, during producing tube portion, can prevent to damage display screen, and satisfy the implosion rule.
In addition, the external margin angle of display screen is set to 0.5 to 1.5 degree, and the external margin angle of display screen so that the inequality below satisfying are set like this: be positioned at the external margin angle on long limit, the external margin angle of the external margin angle of minor face＞be positioned at diagonal angle part＞be positioned at.Therefore, the vacuum power that evenly distributes.Therefore, the anti-riot characteristic and the plasticity of display screen can be improved, and the reinforcing band slippage can be effectively prevented.
Description of drawings
According to the detailed description of doing below in conjunction with accompanying drawing, can more be expressly understood above-mentioned and other purpose, feature and other advantage of the present invention, wherein:
Fig. 1 is the partial cross sectional side elevation view that conventional cathode ray tube is shown;
Fig. 2 is the cutaway view that the display screen that constitutes conventional cathode ray tube is shown;
Fig. 3 illustrates the curve chart that stress and cost change according to the CFT/SET ratio of universal display screen;
Fig. 4 is the rearview of thickness of sealing the margin that the display screen of conventional cathode ray tube is shown;
Fig. 5 is the detail drawing at external margin angle that the display screen of conventional cathode ray tube is shown;
Fig. 6 illustrates it has been used side-looking schematic diagram according to the cathode ray tube of display screen of the present invention;
Fig. 7 is the schematic diagram that illustrates according to the thickness ratio of the display screen of slim cathode ray tubes of the present invention;
Fig. 8 is the rearview that illustrates according to the thickness of the sealing the margin of the display screen of slim cathode ray tubes of the present invention; And
Fig. 9 is the detail drawing that illustrates according to the external margin angle of the display screen of slim cathode ray tubes of the present invention.
Embodiment
Now, with reference to the accompanying drawings, describe the preferred embodiments of the present invention in detail.
Fig. 6 illustrates it has been used side-looking schematic diagram according to the cathode ray tube of display screen of the present invention.
Display screen according to the present invention is preferably applied to have the slim cathode ray tubes of 110 degree or the above drift angle of 110 degree.
Slim cathode ray tubes shown in Figure 6 has 110 degree or the above drift angle of 110 degree.In addition, slim cathode ray tubes comprises tube portion 40, and its total length is 350mm or below the 350mm.Total length by display screen 20 and tapering part 30 being connected to each other the tube portion 40 that forms together is less than the total length that utilizes the tube portion P of the conventional cathode ray tube that is shown in dotted line among Fig. 6.
Although the size of display screen 20 does not reduce, compare with the size of the tapering part of conventional cathode ray tube, significantly reduced the size of the tapering part 30 of slim cathode ray tubes.Therefore, the stress that extensively distributes on tapering part concentrates on the neck 32 of tapering part 30, and therefore, the explosion-resistance characteristic of slim cathode ray tubes and rigidity may reduce.
Because this reason, according to the present invention, change the shape of display screen 20, with the stress on the neck 32 that concentrates on tapering part because of the reducing of total length of tube portion 40 that distributes on the display screen 20, the stress that tube portion 40 is applied with even distribution, therefore, tube portion 40 has enough strong rigidity.
In addition,, change the external margin angle of the sidewall of display screen 20, improving explosion-resistance characteristic, and prevent the reinforcing band generation slippage of twining around the sidewall of display screen 20 according to the present invention.
Fig. 7 is the schematic diagram that illustrates according to the thickness ratio of the display screen of slim cathode ray tubes of the present invention, and Fig. 8 is the rearview that illustrates according to the thickness of the sealing the margin of the display screen of slim cathode ray tubes of the present invention.
The diagonal-size of display screen 20 is near 700 to 800mm, and therefore, this display screen can correctly be applied to slim cathode ray tubes.
Because screen part 21 constitutes sidewall 23 and sealing the margin 25x, 25y and 25d near being formed rectangular configuration so form the long limit 25x of level, vertical minor face 25y and the diagonal angle part 25d in the bight of display screen 20.
At this, the thickness (CFT) of supposing the center of screen part 21 is Tc, the thickness of the long limit 25x of sealing the margin is Tx, the thickness of the minor face 25y of sealing the margin is Ty, and the thickness of the diagonal angle part 25d of sealing the margin is Td, then construct display screen 20 like this, so that the inequality below satisfying: 0.8≤Tc/Ty≤Tc/Tx≤1.0≤Tc/Td, thereby even distributed stress.
When CFT reduced, stress concentrated on the screen part 21, and therefore, the rigidity of screen part 21 reduces.Therefore, by carrying out explosion-proof test, throwing test and X ray test, obtain bad result.
Therefore, construct display screen 20 like this, the thickness T x of consequently long limit 25x and the thickness T y of minor face 25y are equal to, or greater than CFT, and the thickness of diagonal angle part 25d is less than CFT.
Yet when the thickness T y of thickness T x that grows limit 25x and minor face 25y excessively increased, stress concentrated on the screen part 21.Therefore, concentrate on the stress that shields on the part 21, the preferred display screen 20 of structure like this, so that Tc/Ty 〉=0.8, perhaps Tc/Ty 〉=0.8 in order evenly to distribute.In addition, structure display screen 20, so that long limit 25x like this and minor face 25y have same thickness.Yet in this case, it is big to concentrate on the stress that the stress ratio on the long limit 25x concentrates on the minor face 25y.Therefore, concentrate on the stress that shields on the part 21 in order evenly to distribute, the preferred display screen 20 of structure like this, so that the thickness T x of length limit 25x is less than the thickness T y of minor face 25y.
Compare with minor face 25y with long limit 25x, diagonal angle part 25d has stronger rigidity to this stress.Therefore, for this stress that evenly distributes, the preferred display screen 20 of structure like this, so that the thickness T d of diagonal angle part 25d is less than CFT and the thickness T x of long limit 25x and the thickness T y of minor face 25y.
In a word, construct display screen 20 like this, so that the thickness maximum of minor face 25y, the thickness of long limit 25x is less than the thickness of minor face 25y, and greater than the thickness of center of screen part 21, the thickness of the center of screen part 21 is less than the thickness of long limit 25x, and greater than the thickness of diagonal angle part 25d, and the thickness minimum of diagonal angle part 25d.Therefore, stress is evenly distributed on display screen 20 and the tapering part 30, thereby, can make the stress between display screen 20 and the tapering part 30 suitably keep balance.
As a kind of selection, can construct display screen 20 like this, so that the thickness T y of minor face 25y is identical with the thickness T x of long limit 25x, the thickness T x of long limit 25x equals CFT, and perhaps CFT is identical with the thickness T d of diagonal angle part 25d.
On slim cathode ray tubes according to the present invention, as mentioned above, with minor face 25y, long limit 25x, the center of screen part 21 and the order of diagonal angle part 25, the thickness of minor face 25y, long limit 25x, screen part 21 centers and diagonal angle part 25 suitably is set, therefore, to the stress on the display screen 20 suitable necks 32 that concentrate on tapering part 30 that distribute.
In the superincumbent explanation, consider CFT, be provided with sealing the margin 25x, 25y, 25d thickness SET (Tx, Ty, Td).Yet, can also not consider CFT, the thickness SET of sealing the margin 25x, 25y, 25d is set, and (Tx, Ty Td), do being described in more detail below.
For even distributed stress, the preferred display screen 20 of structure like this, so that the inequality below satisfying: Td ≠ Tx ≠ Ty.That is to say the preferred display screen 20 of structure like this, so that the thickness difference of the diagonal angle part of sealing the margin, long limit and minor face, thereby even distributed stress.
More preferably construct display screen 20 like this, so that the inequality below satisfying: Td＜Tx＜Ty.
The sidewall 23 of display screen 20 is parts that tapering part 30 is connected to display screen.When excessively reducing the thickness of sidewall 23, sidewall 23 reduces with the power that is connected between the tapering part 30.Therefore, stress concentrates on the connector between display screen 20 and the tapering part 30, thereby, reduced the rigidity of slim cathode ray tubes.
In addition, the stress that concentrates on the minor face 25y that stress ratio on the long limit 25x of display screen 20 concentrates on display screen 20 is big.Therefore, concentrate on the stress that shields on part 21 and the tapering part 30 in order evenly to distribute, the preferred display screen 20 of structure like this, so that the thickness T x of length limit 25x is less than the thickness T y of minor face 25y.
In addition, compare with minor face 25y with long limit 25x, diagonal angle part 25d is strong to the rigidity of this stress.Therefore, for this stress that evenly distributes, the preferred display screen 20 of structure like this, so that the thickness T d of diagonal angle part 25d is less than the thickness T x of long limit 25x and the thickness T y of minor face 25y.
In a word, construct display screen 20 like this, so that the thickness maximum of minor face 25y, the thickness of long limit 25x is less than the thickness of minor face 25y, and greater than the thickness of diagonal angle part 25d, and the thickness minimum of diagonal angle part 25d.Therefore, the stress that evenly distributes and produce on display screen 20 and the tapering part 30 by sealing the margin, thereby, make the stress between display screen 20 and the tapering part 30 suitably keep balance.
[table 1]
| | Experiment | 2 of the present invention | Traditional experiment | ||||
| SET | Tx | 15.8 | 15.8 | 11 | 11.4 | ||
| Ty | 16 | 16 | 11 | 11.4 | |||
| Td | 12.5 | 11.85 | 11 | 11.4 | |||
| Td/Tx | 0.791 | 0.750 | 1.000 | 1.000 | |||
| Td/Ty | 0.781 | 0.741 | 1.000 | 1.000 | |||
| Stress (Mpa) | Sidewall | 8.4 | 8.2 | 9.7 | 9.65 | ||
| Sealing the margin | The x axle | 9.2 | 9.5 | 13.5 | 12.8 | ||
| The y axle | 9.5 | 10.1 | 13.9 | 13.4 | |||
| The z axle | 8.2 | 10.8 | 9.2 | 8.8 | |||
| Bullet | 9.8 | 9.9 | 12.9 | 12.5 | |||
| Deflector | 8.4 | 8.1 | 12.5 | 12.7 | |||
From the traditional experiment result as can be seen, at the thickness SET of sealing the margin (Tx, Ty, when Td) identical, for example, when being 11mm or 11.4mm, be distributed in stress on long limit, minor face and the diagonal angle part of sealing the margin near 8.8 to 13.9Mpa, this stress is very big.
Specifically, (when Td) identical, sizable stress concentrates on long limit 25x and the minor face 25, and sizable stress also concentrates on the deflector of bullet and tapering part 30 for Tx, Ty at the thickness SET of sealing the margin.Therefore, stress concentrates on the tube portion 40, and tube portion 40 is damaged easily or implosion takes place.
Yet, from the result of experiment 1 of the present invention as can be seen, thickness at minor face 25y is set to 16mm, the thickness of long limit 25x is set to 15.8mm, and the thickness of diagonal angle part 25d is when being set to 12.5mm, be distributed in stress on long limit, minor face and the diagonal angle part of sealing the margin near 8.2 to 9.8Mpa, this stress is very little.In this case, Td/Tx is 0.791, and Td/Ty is 0.781.
Therefore, when with identical in experiment 1 of the present invention, with the order of minor face 25y, long limit 25x and diagonal angle part 25d, suitably be provided with sealing the margin thickness SET (in the time of Td), stress is no more than the limiting range of stress of tube portion 40 for Tx, Ty, that is, 10Mpa.
On the contrary, from the result of experiment 2 of the present invention as can be seen, thickness at minor face 25y is set to 16mm, the thickness of long limit 25x is set to 15.8mm, and the thickness of diagonal angle part 25d is when being set to 11.85mm, the stress that is distributed in long limit, minor face and diagonal angle part is compared with experiment 1 of the present invention near 8.1 to 10.8Mpa, and its deviation increases.In this case, Td/Tx is 0.750, and Td/Ty is 0.741.
Therefore, as can be seen, although at the stress that under the condition of experiment 2 of the present invention each parts of tube portion 40 is applied less than the stress that under the traditional experiment condition, each parts of tube portion 40 is applied, the stress of minor face and diagonal angle part surpasses 10Mpa, therefore, do not reach the limiting range of stress.Since this reason, the preferred display screen 20 of structure like this, so that the inequality below satisfying: 0.75＜Td/Tx＜1.0, and 0.74＜Td/Ty＜1.0.
As mentioned above, the suitable like this thickness that minor face 25y, long limit 25x and diagonal angle part 25d are set, so that the thickness maximum of minor face 25y, the thickness of long limit 25x is less than the thickness of minor face 25y, and greater than the thickness of diagonal angle part 25d, and the thickness minimum of diagonal angle part 25d, therefore, inequality below satisfying: 0.75＜Td/Tx＜1.0, and 0.74＜Td/Ty＜1.0.Therefore, utilize the sealing the margin stress of concentration of local on slim cathode ray tubes that evenly distributed.
In the superincumbent explanation, construct display screen 20 like this, so that the inequality below satisfying: Td＜Tx＜Ty.As a kind of selection, construct display screen 20 like this, so that the inequality below satisfying: Td＜Tx≤Ty or Td≤Tx＜Ty.
Fig. 9 is the detail drawing that illustrates according to the external margin angle of the display screen of slim cathode ray tubes of the present invention.
With reference to figure 9, the external margin angle S of sidewall 23 is 0.5 to 1.5 degree.The external margin angle S of sidewall 23 is preferably near 1.34 degree.
In addition, the external margin angle S of sidewall 23 preferably is set like this, so that the inequality below satisfying: be positioned at the external margin angle of long limit 25x, the external margin angle of the external margin angle of minor face 25y＞be positioned at diagonal angle part 25d＞be positioned at.
The thickness of supposing the long limit 25x of sealing the margin is Tx, the thickness of the minor face 25y of sealing the margin is that the thickness of the diagonal angle part 25d of Ty and sealing the margin is Td, then according to external margin angle S, the thickness SET of sidewall 23 is set like this, so that the thickness maximum of long limit 25x, the thickness minimum of minor face 25y, the thickness of diagonal angle part 25d be less than the thickness of long limit 25x, and greater than the thickness of minor face 25y.
On slim cathode ray tubes with 110 degree or the above drift angle of 110 degree, shortened the total length of the tube portion 40 that together constitutes by display screen 20 and tapering part 30 are engaged one another, therefore, increased the vacuum power that display screen 20 and tapering part 30 are applied.
Yet according to the present invention, the external margin angle S of the sidewall 23 of display screen 20 is set near 0.5 to 1.5 degree, and it is less than the conventional external edge angle of 3 to 4 degree.Therefore, compare, increased the thickness SET of the sealing the margin of sidewall 23 with conventional art.Therefore, display screen 20 according to the present invention can be enough to bear the vacuum power that the shortening along with the total length of tube portion 40 increases.
In addition, because the external margin angle S of display screen 20 is little, as mentioned above,, therefore, can improve the productivity ratio of making display screen 20 so can effectively prevent from during producing display screen 20, when model takes off display screen 20, may destroy display screen.
In addition, the external margin angle S of display screen 20 is set like this, so that the inequality below satisfying: be positioned at the external margin angle of long limit 25x, the external margin angle of the external margin angle of minor face 25y＞be positioned at diagonal angle part 25d＞be positioned at.Therefore, construct display screen 20 like this, so that as the thickness T x maximum of the long limit 25x of the major part of display screen 20, the thickness T y minimum of minor face 25y, the thickness T d of diagonal angle part 25d is less than the thickness of growing limit 25x, and greater than the thickness of minor face 25y.Therefore, the vacuum power that can effectively distribute, thereby, improved anti-riot characteristic.
In addition, because the external margin angle S of display screen 20 reduces, so when twining reinforcing bands, can prevent the reinforcing band slippage around sidewall 23.
From top explanation as can be seen, the thickness of long limit, minor face and the diagonal angle part of the thickness of display screen center and sealing the margin is set suitably, with even distribution because the increase of drift angle and the stress of concentration of local on tube portion.Therefore, even shortened the total length of tube portion, the present invention still has the effect of improving anti-riot characteristic and guaranteeing enough rigidity.
The thickness of the sealing the margin of display screen suitably is set according to the present invention in addition.Therefore, during producing tube portion, can prevent to damage display screen, and satisfy the implosion rule.
In addition, the external margin angle of display screen is set to 0.5 to 1.5 degree, and the external margin angle of display screen so that the inequality below satisfying are set like this: be positioned at the external margin angle on long limit, the external margin angle of the external margin angle of minor face＞be positioned at diagonal angle part＞be positioned at.Therefore, the vacuum power that evenly distributes.Therefore, anti-riot characteristic and plasticity can be improved, and reinforcing band generation slippage can be effectively prevented.
Although in order to say something, disclose the preferred embodiments of the present invention, those skilled in the art understand, under the situation that does not break away from the disclosed essential scope of the present invention of claims, can carry out various modifications, additional and replacement.
Claims (10)
1. the display screen of a slim cathode ray tubes, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is that this slim cathode ray tubes comprised the tube portion that engages one another and constitute together by with display screen and tapering part, wherein more than 110 degree or 110 were spent
Display screen comprises: screen part, display image on it; Sidewall be provided with around the screen part like this, so that sidewall is to the tapering part bending; And sealing the margin, be formed on the sidewall, on the sealing edge, display screen and tapering part are bonded together,
The thickness of supposing screen part center is Tc, and the thickness on the long limit of sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td,
Then construct display screen like this, so that the inequality below satisfying: 0.8≤Tc/Ty≤Tc/Tx≤1.0≤Tc/Td, and Td＜Tx＜Ty, and
Sidewall has the external margin angle of 0.5 to 1.5 degree.
2. display screen according to claim 1 is wherein constructed display screen like this, so that the inequality below satisfying: 0.75＜Td/Tx＜1.0 and 0.74＜Td/Ty＜1.0.
3. display screen according to claim 1, wherein the total length of tube portion is 350mm or less than 350mm.
4. display screen according to claim 1, wherein the diagonal-size of display screen near 700 to 800mm.
5. display screen according to claim 1, wherein with the approaching rectangular configuration that forms of display screen, and
The external margin angle is set like this, so that the inequality below satisfying: be positioned at the external margin angle on long limit, the external margin angle of the external margin angle of minor face＞be positioned at diagonal angle part＞be positioned at.
6. the display screen of a slim cathode ray tubes, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is that this slim cathode ray tubes comprised the tube portion that engages one another and constitute together by with display screen and tapering part, wherein more than 110 degree or 110 were spent
Display screen comprises: screen part, display image on it; Sealing the margin is provided with around screen part like this, so that sealing the margin is to the tapering part bending, and on the sealing edge, display screen and tapering part are bonded together, and
The thickness of supposing screen part center is Tc, and the thickness on the long limit of sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td,
Then construct display screen like this, so that the inequality below satisfying: 0.8≤Tc/Ty≤Tc/Tx≤1.0≤Tc/Td.
One of 7. display screen according to claim 6 is wherein constructed display screen like this, so that the inequality below satisfying: Td＜Tx＜Ty, Td＜Tx≤Ty and Td≤Tx＜Ty.
8. the display screen of a slim cathode ray tubes, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is that this slim cathode ray tubes comprised the tube portion that engages one another and constitute together by with display screen and tapering part, wherein more than 110 degree or 110 were spent
Display screen comprises: sealing the margin, and like this around being provided with, so that sealing the margin is to the tapering part bending, and on the sealing edge, display screen and tapering part are bonded together,
The thickness of supposing the long limit of sealing the margin is Tx, and the thickness of the minor face of sealing the margin is Ty, and the thickness of the diagonal angle part of sealing the margin is Td,
Then construct display screen like this, so that the inequality below satisfying: Td＜Tx＜Ty.
9. display screen according to claim 8 is wherein constructed display screen like this, so that the inequality below satisfying: 0.75＜Td/Tx＜1.0 and 0.74＜Td/Ty＜1.0.
10. the display screen of a slim cathode ray tubes, construct this slim cathode ray tubes like this, so that the drift angle of electron beam is that this slim cathode ray tubes comprised the tube portion that engages one another and constitute together by with display screen and tapering part, wherein more than 110 degree or 110 were spent
Display screen comprises: sidewall, and like this around being provided with, so that sidewall is to the tapering part bending, and
Sidewall has the external margin angle of 0.5 to 1.5 degree.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050011954A KR100722268B1 (en) | 2005-02-14 | 2005-02-14 | Panel for slim type cathode ray tube |
| KR1020050011952 | 2005-02-14 | ||
| KR1020050011954 | 2005-02-14 | ||
| KR1020050011951 | 2005-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1822301A true CN1822301A (en) | 2006-08-23 |
| CN100538982C CN100538982C (en) | 2009-09-09 |
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ID=36923512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610007106XA Expired - Fee Related CN100538982C (en) | 2005-02-14 | 2006-02-08 | The display screen of slim cathode ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100722268B1 (en) |
| CN (1) | CN100538982C (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100396622B1 (en) * | 2000-12-22 | 2003-09-02 | 주식회사 엘지이아이 | A Color Cathode Ray Tube |
| KR20040000332A (en) * | 2002-06-24 | 2004-01-03 | 아사히 가라스 가부시키가이샤 | Funnel for cathod-ray tube and its manufacturing method |
-
2005
- 2005-02-14 KR KR1020050011954A patent/KR100722268B1/en not_active IP Right Cessation
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2006
- 2006-02-08 CN CNB200610007106XA patent/CN100538982C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR100722268B1 (en) | 2007-05-28 |
| CN100538982C (en) | 2009-09-09 |
| KR20060091106A (en) | 2006-08-18 |
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Owner name: ME LE DI AN GUANG SHI (SOUTH KOREA) CO., LTD. Free format text: FORMER OWNER: LG. PHILIPS DISPLAYS (KOREA) CO., LTD. Effective date: 20090925 |
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Effective date of registration: 20090925 Address after: Seoul, South Kerean Patentee after: LG Philips Displays Korea Address before: Gyeongbuk, South Korea Patentee before: LG Philips Displays (Korea) Co., Ltd. |
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Granted publication date: 20090909 Termination date: 20110208 |