CN1204626A - Method of manufacturing side glass for vacuum fluorescent display - Google Patents
Method of manufacturing side glass for vacuum fluorescent display Download PDFInfo
- Publication number
- CN1204626A CN1204626A CN 97109386 CN97109386A CN1204626A CN 1204626 A CN1204626 A CN 1204626A CN 97109386 CN97109386 CN 97109386 CN 97109386 A CN97109386 A CN 97109386A CN 1204626 A CN1204626 A CN 1204626A
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- glass
- fluorescent display
- vacuum fluorescent
- side glass
- vacuum
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Abstract
A method of manufacturing a side glass for a vacuum fluorescent display is provided wherein a glass is cut to a predetermined length in accordance with the size of the vacuum fluorescent display. The glass is then bent to coincide two ends of the glass in accordance with the shape of the vacuum fluorescent display, and the two ends of the glass are adhered to one another. A sealing frit is applied on the upper side of the glass, and is plasticized and cured.
Description
The present invention relates to a kind of production vacuum fluorescent display (VFD) with the method for side glass, or rather, relate to a kind of by using simple and the side glass of explained hereafter VFD and then the method for more effectively producing VFD easily.
Vacuum fluorescent display (VFD) is a kind of well-known flat display unit, it is by from the cathode emitting thermal electron made with filament and control thermoelectron and be mapped to respect to the motion of grid with thermoelectron on the positive plate that is coated with fluorescent material and show image at screen.
In the outside of VFD the vacuum casting that at least one side is vitreous state is installed, and on vacuum casting, forms a vacuum-pumping tube usually from vacuum casting so that air or gas are extracted out.Specifically, vacuum casting comprises an end glass that is formed with circuit card on it, and one is installed in the end side glass and a front glass that is installed on the side glass on glass.Usually, vacuum-pumping tube is formed on the side glass, after by vacuum-pumping tube the gas in the vacuum casting or air being extracted out, with the end sealing of vacuum-pumping tube.
Shortcoming with traditional VFD of vacuum casting is that vacuum-pumping tube damages easily when being subjected to external impact, and because the part of vacuum-pumping tube is exposed to the outside of side glass, so the outward appearance of VFD is inexquisite.
Therefore, recently by the hole that vacuumizes that is formed for extracting out gas in the vacuum casting or air on glass replaces the vacuum-pumping tube that forms on side glass the end of at.In such system, with vacuum extractors such as pumps for example by vacuumizing after the hole extracts gas or air in the vacuum casting out, seal with sealing cover and vacuumize the hole to remain on the vacuum that forms in the vacuum casting.
Now, 6 explanations are used and are vacuumized the VFD that the hole replaces vacuum-pumping tube with reference to the accompanying drawings.As shown in Figure 6, the vacuum casting of VFD comprises and is formed with the end glass 1 that vacuumizes hole 10a, is installed in the side glass 3 on end glass 1 edge and is installed in front glass 5 on the side glass 3.End glass, side glass are bonded to each other with front glass 1,3,5 are in the same place with sealing welded bond (S welded bond).Sealing cover 7 is fixed to the following of end glass 1 so that sealing vacuumizes hole 10a after gas in extracting vacuum casting out or the air.End glass 1 is produced by comprising several procedures such as circuit mask process, and is produced by following operation by traditional way by the side glass 3 that 4 blocks of glass are made.Promptly, the step that the method for manufacturing side glass 3 comprises has (1) that glass is cut into predetermined length, (2) cleaning glass, (3) four glass cementations are become the shape of rectangular box (side glass) with welded bond (M welded bond), (4) on the upside of side glass, apply the sealing welded bond, and (5) make sealing welded bond plasticising and check side glass.
Yet, if use above-mentioned operation, promptly make side glass 3 by bonding four blocks of glass, will make the operation of producing VFD complicated more.And, and produce four glass cuttings and have identical length with VFD.In addition, need with the bonding four blocks of glass of a large amount of installation welded bonds.This has increased the cost of producing VFD.
Therefore, the present invention relates to the method that a kind of manufacturing is used for the side glass of vacuum fluorescent display (VFD), this method has been eliminated the one or more problems that occur because of the influence that is subjected to technical limitation and shortcoming basically.An object of the present invention is to produce the side glass of VFD, and then a kind of method of more effectively making vacuum fluorescent display (VFD) is provided by usefulness glass cutting operation and glass cementation operation still less still less.
Another object of the present invention provides the method for a kind of production vacuum fluorescent display (VFD) with side glass, and it can save the consumption of the installation welded bond of adhering glass, thereby can reduce the production cost of VFD.
To achieve these goals, the invention provides the method for a kind of production vacuum fluorescent display (VFD) with side glass, the step that this method comprises has: the size according to vacuum fluorescent display becomes predetermined length to glass cutting; Shape according to vacuum fluorescent display makes glass bending the two ends of glass match; The two ends of glass are bonded together; On the upside of glass, apply the sealing welded bond; And the sealing welded bond is carried out plasticising handle and make its curing.
Can more completely estimate the present invention and can make a lot of attached advantage of the present invention become more obvious by the detailed description of carrying out below in conjunction with accompanying drawing, simultaneously more help to understand the present invention, be denoted by like references same or analogous parts in the accompanying drawings, wherein:
Fig. 1 is the decomposition diagram according to the vacuum fluorescent display of embodiments of the invention production;
Fig. 2 is the schema of the described VFD of the expression production embodiment of the invention with the side glass method;
Fig. 3-Fig. 5 represents the method for the described VFD of the production embodiment of the invention with side glass; With
Fig. 6 is the decomposition diagram by the vacuum fluorescent display of produced in conventional processes.
To more help to understand the preferred embodiments of the present invention by analyzing the following detailed description of doing with reference to accompanying drawing.
As shown in Figure 1, comprise a vacuum casting according to the described VFD of embodiments of the invention, this vacuum casting by the end glass 26 that is formed with anode 22 and grid 24 on it, be installed in the side glass 28 on end glass 26 edges and the transparent front glass 30 that is installed on the side glass 28 constitutes.Vacuumize hole 26a withdrawing gas or air from vacuum casting by being formed on the end glass 26, vacuumize hole 26a so that vacuum casting keeps vacuum state with sealing cover 32 sealings then.In general, producing the step that the method for VFD comprises has mask process, makes end glass, makes side glass, installation procedure, sealing process and gas pumping operation.Owing to the invention provides a kind of method of improved production side glass, the method for producing side glass will be described in more detail below.As described in Figure 1, glass of side glass 28 usefulness of the present invention is made.As shown in Figure 2, first step of producing side glass 28 is that size according to VFD becomes predetermined length (S1) to the strip glass cutting.Cutting action (S1) promptly is the operation of carrying out scribing described in the conventional processes.Then according to the shape of VFD with side glass 28 bendings (S2).Usually, the shape of VFD is a rectangular box shape, so side glass 28 is curved rectangular shape.As shown in Figure 3, bending operation (S2) preferably by with heating unit for example three points on 40 pairs of side glass 28 of gas torch heat and finish.Preferably side glass 28 being become matches the two ends of side glass 28.When side glass 28 is bent to rectangle, on bent position, will inevitably produce the stress of glass material, this will make glass performance degenerate.Therefore, can eliminate the locational stress of glass bending (S3) by after bending operation, whole side glass 28 being heated the annealing operation of finishing.By being inserted in the heating tank, side glass 28 just can finish annealing operation (S3).After annealing operation S3, carry out the bonding process at bonding side glass 28 two ends.As shown in Figure 4, can finish bonding process S4 by applying sealing welded bond 42 on the position that matches at side glass 28 two ends.So utilize sealing welded bond 42 two ends of side glass 28 can be bonded together.As shown in Figure 5, after bonding process, sealing welded bond 44 is imposed on the upside of side glass 28 (S5).After this sealing welded bond 44 is carried out plasticising and handle (S6) and solidification treatment.
At last, side glass 28 is tested and produce VFD with it.As mentioned above, the method for production vacuum fluorescent display (VFD) comprises the method for producing side glass by the two ends of curved side glass and bonding side glass.
Therefore, according to the present invention, owing to when producing side glass, do not need bonding four blocks of glass, so the method for a kind of more effective production vacuum fluorescent display (VFD) is provided.In addition, because the required sealing welded bond consumption minimizing of bonding side glass, so reduced the cost of producing side glass.
Claims (6)
1. produce the method for side glass for vacuum fluorescent display, this method may further comprise the steps:
Size according to vacuum fluorescent display becomes predetermined length to glass cutting;
According to the shape curved glass of vacuum fluorescent display, make the two ends of glass match;
The two ends of adhering glass;
On the glass upside, apply the sealing welded bond; With
The sealing welded bond is carried out plasticising handle and make its curing.
2. the method for production side glass for vacuum fluorescent display according to claim 1 further comprises glass is carried out the annealed step, so that eliminate in crooked and bonding process the stress in generation on glass.
3. the method for production side glass for vacuum fluorescent display according to claim 1, wherein Wan Qu step is to finish by the predetermined point on the heating glass.
4. the method for production side glass for vacuum fluorescent display according to claim 1, wherein bonding step is finished by applying the sealing welded bond.
5. the method for production side glass for vacuum fluorescent display according to claim 1 wherein becomes glass bending to have the shape of rectangular box in bending step.
6. the method for production side glass for vacuum fluorescent display according to claim 3, wherein heating steps is realized with gas torch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97109386 CN1204626A (en) | 1997-07-02 | 1997-12-29 | Method of manufacturing side glass for vacuum fluorescent display |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR30641/97 | 1997-07-02 | ||
| CN 97109386 CN1204626A (en) | 1997-07-02 | 1997-12-29 | Method of manufacturing side glass for vacuum fluorescent display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1204626A true CN1204626A (en) | 1999-01-13 |
Family
ID=5171170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97109386 Pending CN1204626A (en) | 1997-07-02 | 1997-12-29 | Method of manufacturing side glass for vacuum fluorescent display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1204626A (en) |
-
1997
- 1997-12-29 CN CN 97109386 patent/CN1204626A/en active Pending
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| PB01 | Publication | ||
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| 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 |