CN1245346A - Cathod-ray tube - Google Patents
Cathod-ray tube Download PDFInfo
- Publication number
- CN1245346A CN1245346A CN99111674A CN99111674A CN1245346A CN 1245346 A CN1245346 A CN 1245346A CN 99111674 A CN99111674 A CN 99111674A CN 99111674 A CN99111674 A CN 99111674A CN 1245346 A CN1245346 A CN 1245346A
- Authority
- CN
- China
- Prior art keywords
- stem
- neck
- expansion
- ray tube
- cathode ray
- 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.)
- Pending
Links
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
- H01J29/90—Leading-in arrangements; Seals therefor
-
- 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
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
The diameter of the external and/or internal surface in the edge side of the neck portion which connects for the funnel portion gradually expands to the edge. Then, the expansion rate of the part located in the open end vicinity (the edge side) was decreased in this expansion part. By this, the V character groove is avoided between stem dowel and neck portion inwall, and the swelling of the external wall in the flare shape division in the sealing portion vicinity is prevented.
Description
The present invention relates to cathode ray tube.The present invention be more particularly directed to fix the stem stem of electron gun and the structure at the sealing position of the glass shell neck that constitutes vacuum casting by inserting many stem stem lead-in wires.
Cathode ray tube is mainly as the display device of television receiver and the monitor of information terminal.Color cathode ray tube typically has following part.
(1) constitutes the vacuum casting that comprises following part by glass.
(A) the screen disc portion suspends as the shadow mask of color selective electrode and at it
The fluorescence coating that has multiple color on the inner surface.
(B) conical section, change is less than the straight of this screen disc portion gradually
Directly.
(C) neck comprises electron gun.
(D) be sealed in stem stem on the neck edge.
(2) deflection system on the transitional region of the conical section of this vacuum casting and neck.
(3) be used for the convergence correction of electron beam and the various correcting magnet devices that colour purity is proofreaied and correct, should
Device is fixed on the neck.
The electron gun that is contained in the neck is supported by many stem stem lead-in wires that insert in the stem stem, and inserts from neck edge (neck opening end).Along with diameter enlarges equably, the neck opening end becomes taper (horn mouth).After this, by heated sealant neck edge and stem stem.After the shaping and cooling of hermetic unit, by inside being vacuumized sealing neck edge and stem stem.
Figure 11 is the key diagram of the seal operation of neck and stem stem.The stem stem alignment pin 11 fixing stem stem lead-in wires 14 that strengthen, dotted line 28 expressions comprise the part of electron gun.
Openend one side (being also referred to as edge side) 19 of neck 21 has the opening of flare slightly along edge direction.Be disk and face the edge side 19 of neck 21 uniformly substantially by stem stem lead-in wire 14 being passed annularly stem stem 17 that stem stem 17 implants fixing electron gun 28.As shown by arrow A, insert electron gun 28 from edge side 19.Heat the contact wire peripheral part of sealing stem stem 17 and neck 21, and shaping stem stem 17 and neck 21 with burner etc.
For example, Japanese Patent Application Publication 9-306389 etc. has showed this technology.
Figure 12 shows the profile that is sealed in the stem stem on the neck.
Heat with burner etc., make glass softening, and the pressurization welding, the edge side 19 of sealing neck 21 and the edge that has the stem stem 17 of blast pipe 10 keep interval 12 simultaneously between stem stem alignment pin 11 and edge side 19.
In recent cathode ray tube, for power saving has reduced the neck external diameter.Simultaneously, in order to improve the purpose of focus characteristics and support, the quantity of implanting the stem stem lead-in wire 14 in the stem stem by annular increases., from the viewpoint of common assurance pressure, by reducing the neck external diameter, the Butut of stem stem lead-in wire 14 is diminished, it is limited that the diameter of the annulus that promptly goes between reduces.
Because the fixedly fusion between the edge side 19 of the stem stem alignment pin 11 of stem stem lead-in wire 14 and neck 21 in stem stem 17, thereby formation V font groove 12.When forming this V font groove 12, it is concentrated that stress becomes, and mechanical strength reduces, thereby have the problem that fracture takes place.
Particularly, in the electron gun of dynamic focusing system, the stem stem number of leads that is provided with by ring-type increases.The limit that spacing between stem stem alignment pin 11 and neck edge inwall reduces near the lead-in wire circle diameter, the 12 easier formation of V font groove.
Insert deflection system from stem stem 17 1 sides of neck 21, and be fixed on the transitional region of conical section.For power saving, the caliber of expectation neck 21 is less., the profile of stem stem 17 hermetic units increases the restriction that the circle diameter that do not gone between reduces.
Figure 13 and Figure 14 show the shape of cathode ray tube neck edge one side of the V font groove that can avoid sealing the position.In the neck 21 of conical section one side of edge side 19, form tubaeform boundary section (division) (boundary section of conical section one side expansion state) 18.Edge side 19 is parallel to the outer wall of neck 21 major parts.Seal neck 21 and stem stem 17 then., when the spreading rate that makes tubaeform boundary section 18 for fear of V font groove increased, it is cylindrical that tubaeform boundary section can not have in stem stem sealing place, and shown in the arrow C of Figure 14, and it becomes the expansion upheaval shape.
Under this shape, it is difficult that the insertion of deflection system becomes, and must break deflection system could directly be attached on the transitional region of conical section and neck.Thereby the structure of deflection system becomes complicated, its fitting operation difficulty that also becomes.
The objective of the invention is to address the above problem and also can avoid between stem stem alignment pin and neck edge inwall, producing V font groove.By reducing near the expansion upheaval of the tubaeform boundary section outer wall sealing position, can easily carry out the installation of deflection system.Thereby can realize the economize on electricity of cathode ray tube.
In the present invention, in order to realize this purpose, enlarge gradually at the diameter of neck edge side external surface that is connected with conical section and/or inner surface and to reach the edge.Like this, in this expansion, the spreading rate that is positioned near openend (edge side) part reduces.
The profile of observation and tubular axis parallel direction, the structure of its expansion outer surface and/or inner surface can be linearity or curve-like.And, in the outer surface and inner surface of expansion, can be one and be linearity that another is a curve-like.That is to say that in the present invention, spreading rate changes in the cone side of the neck in expansion part and open side (edge side) part, and should make it become as a whole the shape that expansion gradually reaches the openend boundary section of neck.Thus, the V font groove between stem stem alignment pin and the neck inwall can be avoided, and near the outer wall expansion upheaval of the toroidal boundary section of hermetic unit can be prevented.
With expansion state sealing stem stem, can reduce near the poor of the external diameter of neck main body external diameter and hermetic unit, can prevent the generation of V font groove simultaneously.So,, thereby can economize on electricity because it is easy to insert deflection system, and has reduced the internal diameter of deflection system.
When expansion state has even spreading rate, can keep to avoid the spacing of fusion between stem stem alignment pin and the edge side.Therefore, it has become such shape, and promptly this edge is expanded to such an extent that surpass desired value, and hermetic unit can not form in the shaping after sealing, and its external diameter is not enough little.
In addition, as shown in figure 13, when the edge side 19 of neck 21 is not when being in expansion state, for fear of in the root of stem stem alignment pin 11 and the fusion between the edge, the expansion state part 18 of conical section one side enlarges to such an extent that surpass desired value.Thereby near the external diameter the hermetic unit is not very little, need not form after sealing.
Utilize the expansion state of neck of the present invention, can avoid the fusion of edge side and stem stem alignment pin, the external diameter that prevents to form V font groove and fully reduce hermetic unit.
The present invention can be used for comprising in the various cathode ray tubes of color cathode ray tube.
Fig. 1 is the profile of the major part of cathode ray tube first embodiment of the present invention.
Fig. 2 is the profile of the major part of cathode ray tube second embodiment of the present invention.
Fig. 3 is the profile of the major part of cathode ray tube the 3rd embodiment of the present invention.
Fig. 4 is the profile of the major part of cathode ray tube the 4th embodiment of the present invention.
Fig. 5 is the profile of the major part of cathode ray tube the 5th embodiment of the present invention.
Fig. 6 is the profile of the major part of cathode ray tube the 6th embodiment of the present invention.
Fig. 7 is the profile of the major part of cathode ray tube the 7th embodiment of the present invention.
Fig. 8 is the representative section figure of overall structure example that is used for the cathode ray tube of the arbitrary embodiment of the present invention.
Fig. 9 is the representative section figure of overall structure example that is used for another cathode ray tube of the arbitrary embodiment of the present invention.
Figure 10 is the end view that is installed on the electron gun in the cathode ray tube neck of Fig. 8 or 9.
Figure 11 shows the seal operation between neck and the stem stem.
Figure 12 shows the stem stem that is sealed in the neck.
Figure 13 shows the shape for fear of V font groove neck edge side before the cathode-ray seal of tube.
Figure 14 shows for fear of the shape of V font groove neck edge side after the cathode-ray seal of tube.
In Fig. 1, the diameter of outer surface and inner surface is expanded the edge of the stem stem 17 that reaches neck 21 together gradually.From cone side 18 to edge side 19 form these expansions as with the hermetic unit of stem stem 17.When observing in the profile of the direction that is being parallel to tubular axis, the shape of this expansion is the straight line that is derived from the cone side.At this expansion, the spreading rate of edge side 19 is less than the spreading rate of cone side 18.That is to say that at the edge side 19 of expansion, expansion becomes more slow.On demand minimum value guarantees go between spacing 12 between the inwall of 14 stem stem alignment pin 11 and neck edge of fixing stem stem.Can avoid in the inwall of edge side 19 and the fusion between the stem stem alignment pin 11.Stem stem 17 has blast pipe 10.Dotted line 28 expressions comprise the position of electron gun.
The profile of stem stem alignment pin 11 is the conical in shape that narrows down gradually from the root to the tip.Therefore, slow down by the expansion that makes the expansion edge side, the inwall of edge side gets parallel substantially with the shape variable of stem stem alignment pin.When the fusion that utilizes stem stem 17 forms operation, can guarantee spacing 12, thereby can avoid the generation of V font groove.Owing to reduced the expansion upheaval of hermetic unit outer wall, thereby carried out the installation of deflection system easily, and can realize the economize on electricity of cathode ray tube.
In second embodiment of Fig. 2, when observing the profile parallel with tubular axis, expansion is expanded lentamente from the cone side and is curve, and this point is different with Fig. 1.
According to this embodiment, can obtain the effect identical with first embodiment of Fig. 1.
In the 3rd embodiment of Fig. 3, when observing the profile parallel with tubular axis, the outer wall of expansion from the cone side to expanding with the sealing the margin straight line of stem stem 17 sealings.The inwall of expansion is expanded from cone side straight line, and forms at edge side 19 places of cone side 18 and steadily expansion.
That is to say the outer wall of expansion straight line expansion equably in the present embodiment.With respect to the spreading rate of cone side 18, the expansion inwall reduces at the spreading rate of edge side 19.That is at the inwall of the expansion of edge side 19, expansion becomes slowly, can guarantee to avoid the required minimum spacing of fusion between the inwall of edge side 19 and the stem stem alignment pin 11.
According to this embodiment, can obtain the effect identical with first embodiment of Fig. 1.
In the 4th embodiment of Fig. 4, when observing the profile parallel with tubular axis, the inwall of expansion from the cone side to expanding with the sealing the margin straight line of stem stem 17.The outer wall of expansion is expanded from cone side straight line, and forms at edge side 19 places of cone side 18 and steadily expansion.
That is to say, make the inwall of expansion become the shape of straight line expansion equably.Simultaneously, with respect to the spreading rate of cone side 18, the expansion outer wall reduces at the spreading rate of edge side 19.
When the fusion that utilizes stem stem 17 forms operation, guarantee spacing 12 with thin basically edge side 19, and can avoid the generation of V font groove.According to this embodiment, can obtain the effect identical with first embodiment of Fig. 1.
In the 5th embodiment of Fig. 5, when observing the profile parallel with tubular axis, the outer wall of expansion from the cone side to expanding with the sealing the margin straight line of stem stem 17.The inwall of expansion is expanded from cone side straight line, and forms in cone side 18 and edge side 19 places.
Make the outer wall of expansion become the shape of straight line expansion equably.Simultaneously, with respect to the spreading rate of cone side 18, the expansion inwall reduces at the spreading rate of edge side 19.
When the fusion that utilizes stem stem 17 forms operation, because the reason identical with the embodiment of Fig. 2, thereby can guarantee the inwall of edge side 19 and the spacing 12 between the stem stem alignment pin 11, and can avoid the generation of V font groove.Can obtain the effect identical with first embodiment of Fig. 1.
In the 6th embodiment of Fig. 6, when observing the profile parallel with tubular axis, the inwall of expansion from the cone side to expanding with the sealing the margin straight line of stem stem 17.The outer wall of expansion is expanded from cone side curve, and forms in cone side 18 and edge side 19 places.
Make the inwall of expansion become the shape of straight line expansion equably.Simultaneously, with respect to the spreading rate of cone side 18, the outer wall of expansion reduces at the spreading rate of edge side 19.
When the fusion that utilizes stem stem 17 forms operation, by making in fact attenuation of edge side 19, can guarantee the inwall of edge side 19 and the spacing 12 between the stem stem alignment pin 11, and can avoid the generation of V font groove.Can obtain the effect identical with first embodiment of Fig. 1.
In the design of other size of the size of recess diameter, glass tube shell thickness, stem stem lead-in wire annulus and cathode ray tube, select the divergence ratio of cone side 18 and the edge side 19 of expansion among each embodiment by optimum value,
In the various embodiments described above, the external diameter of stem stem is greater than the internal diameter of neck edge side., the present invention is not limited to the foregoing description.
In the 7th embodiment of Fig. 7, different with the foregoing description, the external diameter of stem stem is less than the internal diameter of neck edge side.As shown in Figure 7, the profile of stem stem is included in the neck edge side.
The shape of the expansion of neck side is identical with Fig. 1.The expansion of neck side can be as Fig. 2 extremely as shown in Figure 6.
Can obtain the effect identical with first embodiment of Fig. 1.
In Fig. 8, cathode ray tube has the phosphor screen 23 on the inner surface of screen disc portion 20.Support the shadow mask 24 of color selective electrode by shadow mask frame 25 and shadow mask support system 27, and make it near phosphor screen 23.The major diameter boundary section of the opening of sealed screen disc portion 20 and conical section 22.The edge side 19 of sealing neck 21 and the stem stem 17 that has stem stem lead-in wire 14.
Fixing magnetic shield 26 in shadow mask frame 25, and screening electron bundle (Bc, Bs * 2) makes it avoid the influence of the external magnetic field such as earth magnetism.Deflection system 29 is installed on the transitional region between conical section 22 and the neck 21.Electron gun 28 is included in the neck 21, and the magnetic devices 30 that is used for electron-beam convergence and colour purity adjustment is installed on the outer wall of neck 21.
With deflection system 29 along level and vertical direction deflection from electron gun the 28 electron beam (B that penetrate
c, Bs * 2) and make it reach shadow mask 24.By the look that selects of shadow mask 24 openings, fluoroscopic some fluorophor of electron beam bump, thus reproduce chromatic image.
Carry out sealing between neck 21 and the stem stem 17 according to the structure described in arbitrary embodiment.Have the profile of neck 21 with the edge side 19 of the neck 21 of stem stem 17 sealing, this profile makes expansion upheaval very little, thereby the installation of deflection system 29 or magnetic devices 30 becomes easy.
Can avoid the fusion between the edge transition part of stem stem alignment pin and neck, prevent that the vacuum degree that causes because of fracture from descending, and diminishes the internal diameter of deflection system, so reduce power consumption.
The cathode ray tube of Fig. 9 is the plane screen dish-type with screen disc portion 20, and the effect of other structure is identical with cathode ray tube shown in Figure 8.
The electron gun of Figure 10 is fixed on the glass rod 8 of various ways (multi-form): cathode structure 1, first grid 2, second grid 3, the 3rd grid 4, the 4th grid 5, the 5th grid 6, the 6th grid 7 and shielding cup 7a.By implant the fixing contact conductor of welding on the stem stem lead-in wire 14 in the stem stem 17 in cathode structure 1 one sides, support this electron gun.
After this electron gun is loaded in the neck, from blast pipe 10 air-outs, and shown in Fig. 8 or 9 sealing stem stem 17 periphery and neck edge.Constitute vacuum casting by the neck 21 that shields disc portion 20, conical section 22 and be sealed on the stem stem 17.
Although as use result of the present invention in cathode ray tube, the foregoing description has been described, the present invention is not limited in the foregoing description.Can carry out various variations and can not depart from technology of the present invention.
According to the invention described above, be special shape by the expansion that makes neck, can avoid the fusion between stem stem alignment pin and neck edge, prevent to cause the formation of the V font groove of fracture.Because reducing the highly reliable cathode ray tube of deflection system internal diameter has low-power consumption, make near the external diameter of hermetic unit enough little simultaneously.
Claims (20)
1. color cathode ray tube comprises:
Has fluoroscopic screen disc portion;
The neck that comprises electron gun;
Be formed at the conical section between screen disc portion and the neck;
Have many stem stem lead-in wires of implanting by ring-type and the stem stem that seals the neck opening end;
Be attached to the deflection system on the transitional region of conical section and neck; With
Neck with expansion, this expansion have near the external diameter the openend of expanding from the cone side towards openend, and have the spreading rate that one side diminishes from the cone side to openend.
2. color cathode ray tube as claimed in claim 1, the wherein external diameter linearity of expansion expansion.
3. color cathode ray tube as claimed in claim 1, wherein the external diameter of expansion is expanded by curve.
4. color cathode ray tube as claimed in claim 1, wherein the external diameter of stem stem is greater than the internal diameter of neck opening end.
5. color cathode ray tube as claimed in claim 1, wherein the external diameter of stem stem is less than the internal diameter of neck opening end.
6. color cathode ray tube as claimed in claim 1 wherein is roughly cylindrical from expansion to the conical section neck.
7. color cathode ray tube comprises:
Has fluoroscopic screen disc portion;
The neck that comprises electron gun;
Be formed at the conical section between screen disc portion and the neck;
Have many stem stem lead-in wires of implanting by ring-type and the stem stem that seals the neck opening end;
Be attached to the deflection system on the transitional region of conical section and neck; With
Neck with expansion, this expansion have from the cone side towards openend near external diameter and the internal diameter the openend of expansion, and have from the cone side to openend that one side at first increases the spreading rate that diminishes again then.
8. color cathode ray tube as claimed in claim 7, the wherein external diameter of expansion and internal diameter linearity expansion.
9. color cathode ray tube as claimed in claim 7, wherein the external diameter of expansion and internal diameter are expanded by curve.
10. color cathode ray tube as claimed in claim 7, wherein the external diameter of stem stem is greater than the internal diameter of neck opening end.
11. color cathode ray tube as claimed in claim 7, wherein the external diameter of stem stem is less than the internal diameter of neck opening end.
12. color cathode ray tube as claimed in claim 7 wherein is roughly cylindrical from expansion to the conical section neck.
13. method of making color cathode ray tube, this color cathode ray tube comprises having fluoroscopic screen disc portion, the neck that comprises electron gun, be formed at the conical section between screen disc portion and the neck, the many stem stems of implanting by ring-type go between and the stem stem of sealing neck opening end with having
Described method comprises the following steps:
Before sealing, the neck of band expansion is provided, said expansion has from the cone side to openend continuously the external diameter of expansion and has the spreading rate that reduces from the cone side to open end side; With
Subsequently, seal the openend of neck with stem stem.
14. the method for manufacturing color cathode ray tube as claimed in claim 13, the wherein external diameter linearity of expansion expansion.
15. the manufacture method of color cathode ray tube as claimed in claim 13, wherein the external diameter of expansion is expanded by curve.
16. the manufacture method of color cathode ray tube as claimed in claim 13, wherein the external diameter of stem stem is greater than the internal diameter of neck opening end.
17. the manufacture method of color cathode ray tube as claimed in claim 13, wherein the external diameter of stem stem is less than the internal diameter of neck opening end.
18. the manufacture method of color cathode ray tube as claimed in claim 13 wherein is roughly cylindrical from expansion to the conical section neck.
19. the manufacture method of color cathode ray tube as claimed in claim 13, wherein said stem stem also has the alignment pin that extends internally, described alignment pin seals described stem stem lead-in wire and spaced apart fully with the adjacent inner wall of neck, described stem stem only partly is connected to the end of neck indirectly by the stem stem except that alignment pin, do not produce the V-shaped groove that stress is concentrated simultaneously.
20. the method for manufacturing color cathode ray tube as claimed in claim 19, wherein from the expansion to the conical section, neck is roughly cylindrical, and openend one side of neck is roughly cylindrical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP223277/98 | 1998-08-06 | ||
| JP10223277A JP2000057975A (en) | 1998-08-06 | 1998-08-06 | Cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1245346A true CN1245346A (en) | 2000-02-23 |
Family
ID=16795615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99111674A Pending CN1245346A (en) | 1998-08-06 | 1999-08-06 | Cathod-ray tube |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2000057975A (en) |
| KR (1) | KR20000017091A (en) |
| CN (1) | CN1245346A (en) |
| TW (1) | TW430848B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3952378B2 (en) | 2002-04-19 | 2007-08-01 | ノーリツ鋼機株式会社 | Photo printing device |
| US10638831B2 (en) | 2016-09-30 | 2020-05-05 | Shordee Products Llc | Fluid dispensing brush |
| USD844331S1 (en) | 2017-07-24 | 2019-04-02 | Shordee Products Llc | Hair brush |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824946U (en) * | 1981-08-12 | 1983-02-17 | 株式会社東芝 | Electron tube sealing device |
| JPH07118269B2 (en) * | 1985-09-20 | 1995-12-18 | 株式会社日立製作所 | Method for encapsulating colorless cathode ray tubes |
| TW382136B (en) * | 1994-09-13 | 2000-02-11 | Hitachi Ltd | Cathode ray tube having a small-diameter neck and method of manufactur thereof |
| JPH08255581A (en) * | 1995-03-17 | 1996-10-01 | Hitachi Ltd | Cathode-ray tube device |
| JP3470495B2 (en) * | 1996-05-09 | 2003-11-25 | 旭硝子株式会社 | Funnel for cathode ray tube |
| JPH1083781A (en) * | 1996-09-10 | 1998-03-31 | Hitachi Ltd | Cathode-ray tube |
-
1998
- 1998-08-06 JP JP10223277A patent/JP2000057975A/en active Pending
-
1999
- 1999-07-29 TW TW088112922A patent/TW430848B/en not_active IP Right Cessation
- 1999-08-05 KR KR1019990032062A patent/KR20000017091A/en not_active Application Discontinuation
- 1999-08-06 CN CN99111674A patent/CN1245346A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000057975A (en) | 2000-02-25 |
| TW430848B (en) | 2001-04-21 |
| KR20000017091A (en) | 2000-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1083614C (en) | Cathode ray tube having a small-diameter neck and method of manufacture thereof | |
| CN1100340C (en) | Cathode-ray tube | |
| CN1091940C (en) | Narrow-neck CRT having large stem pin circule | |
| CN1245346A (en) | Cathod-ray tube | |
| CN1123042C (en) | Shadow-mask color cathode ray tube | |
| CN1143354C (en) | Color cathode ray tube with reduced dynamic focus voltage for electrostatic quadrupole lens thereof | |
| CN1114783A (en) | Color cathode ray tube having improved focus | |
| CN1153249C (en) | Colour Bulao'en tube | |
| CN1135600C (en) | Cathode-ray tube and its mfg. method | |
| CN1194373C (en) | Colour cathod-ray tube | |
| CN1197112C (en) | Cathode ray tube device | |
| CN1233015C (en) | Crt | |
| CN1189915C (en) | Color picture tube | |
| JP3401090B2 (en) | Cathode ray tube and method of manufacturing the same | |
| CN1134813C (en) | CRT and its mfg. method | |
| CN1221005C (en) | Improved indirect heating cathode CRT | |
| CN1227708C (en) | Coloured cathode ray tube equipment | |
| KR100879464B1 (en) | Cathode ray tube and manufacturing method thereof | |
| CN1457079A (en) | Envelope structure of cathod-ray tube | |
| CN1348198A (en) | Cathode anchor of electron gun in cathode-ray tube | |
| KR20030007091A (en) | CATHODE RAY TUBE EMPLOYING A CATHODE STRUCTURE HAVING IMPROVED r CHARACTERISTICS | |
| CN1589489A (en) | Cathode ray tube device | |
| JP2004311399A (en) | Electron gun structure for color cathode-ray tube | |
| CN1577709A (en) | Cathode ray tube and manufacturing method of deflection coil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |