CN112017928A - Manufacturing process of short tube CRT display tube - Google Patents
Manufacturing process of short tube CRT display tube Download PDFInfo
- Publication number
- CN112017928A CN112017928A CN202010908904.XA CN202010908904A CN112017928A CN 112017928 A CN112017928 A CN 112017928A CN 202010908904 A CN202010908904 A CN 202010908904A CN 112017928 A CN112017928 A CN 112017928A
- Authority
- CN
- China
- Prior art keywords
- glass
- tube
- display tube
- glass shell
- electron gun
- 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
Classifications
-
- 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
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/205—Applying optical coatings or shielding coatings to the vessel of flat panel displays, e.g. applying filter layers, electromagnetic interference shielding layers, anti-reflection coatings or anti-glare coatings
-
- 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
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/18—Assembling together the component parts of electrode systems
- H01J9/185—Assembling together the component parts of electrode systems of flat panel display devices, e.g. by using spacers
-
- 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
- H01J9/241—Manufacture or joining of vessels, leading-in conductors or bases the vessel being for a flat panel display
-
- 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
- H01J9/26—Sealing together parts of vessels
- H01J9/261—Sealing together parts of vessels the vessel being for a flat panel display
-
- 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
- H01J9/38—Exhausting, degassing, filling, or cleaning vessels
- H01J9/385—Exhausting vessels
-
- 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
- H01J9/40—Closing vessels
-
- 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
- H01J9/42—Measurement or testing during manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
The invention discloses a manufacturing process of a short tube CRT display tube, belongs to the technical field of vacuum display tube devices, and aims to solve the problem that the conventional CRT display tube cannot be used in a low-focus voltage system. Which comprises the following steps: (1) sealing the glass slide, the glass cone and the glass tube to obtain a glass shell; (2) performing fluorescent powder coating and graphite coating in the glass shell, and performing aluminum evaporation in the glass shell to obtain a finished glass shell; (3) assembling an electron gun: assembling the electron gun into a finished glass shell; (4) sealing the tube orifice of the finished glass tube with the glass core column disc of the electron gun; (5) exhausting the sealed finished glass shell to make the inside of the finished glass shell in a vacuum state to obtain a display tube; (6) carrying out high-low pressure aging and point parameter testing on the display tube subjected to exhaust; (7) and (4) encapsulating the wires required by installation through a flange plate to obtain the finished product display tube. The invention is suitable for the manufacturing process of the short tube CRT display tube.
Description
Technical Field
The invention belongs to the technical field of vacuum display tube devices, and particularly relates to a manufacturing process of a short tube CRT display tube.
Background
A CRT display tube is a vacuum display tube device, which is usually used as a display source in an aircraft head-up display system for a pilot to view a displayed picture. The existing long-tube CRT display tube has the length of 163mm and the focusing voltage of 3-3.5 KV, and cannot be used in a low-focusing-voltage system. This is because the electron gun of the conventional long tube CRT display tube is not suitable for the low focus voltage system because the position of the focus electrode system on the electron gun is closer to the anode on the cone after the entire tube length is shortened, and the voltage difference between the anode and the focus electrode becomes large at a low focus voltage, which is likely to cause a high voltage ignition phenomenon.
Disclosure of Invention
The invention aims to: the manufacturing process of the short tube CRT display tube is provided, and the problem that the existing CRT display tube cannot be used in a low focus voltage system is solved.
The technical scheme adopted by the invention is as follows:
a manufacturing process of a short tube CRT display tube comprises the following steps:
(1) manufacturing a glass bulb, namely sealing the glass sheet, the glass cone and the glass tube to obtain the glass bulb;
(2) manufacturing a screen: coating fluorescent powder in the glass shell to form a fluorescent powder layer, coating graphite in the glass shell to form a graphite layer, and evaporating aluminum in the glass shell to form an aluminum layer to obtain a finished glass shell;
(3) assembling an electron gun: assembling the electron gun into a finished glass shell;
(4) and (3) sealing: sealing the tube orifice of the finished glass tube with the glass core column disc of the electron gun;
(5) exhausting: exhausting the sealed finished glass shell to make the inside of the finished glass shell in a vacuum state to obtain a display tube;
(6) and (3) aging test: carrying out high-low pressure aging and point parameter testing on the display tube subjected to exhaust;
(7) encapsulating: and (4) encapsulating the wires required by installation through a flange plate to obtain the finished product display tube.
Further, annealing, degassing and deburring are carried out on the gold ball part of the electron gun in the step 3.
Further, the length of the electron gun in step 3 is 40 mm.
Further, the length of the glass envelope in the step 1 is 125 mm.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, through improving the structure of the electron gun and the glass bulb, after the whole length of the glass bulb is reduced, the ignition phenomenon between the focusing electrode and the anode can be reduced by annealing, degassing and deburring the gold ball part on the electron gun, so that the whole display tube is suitable for a low-focusing voltage system, has smaller size, has the characteristics of high brightness, high resolution and high reliability, and can normally work under extreme environmental conditions of high temperature, low temperature, salt mist and the like.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A manufacturing process of a short tube CRT display tube comprises the following steps:
(1) manufacturing a glass bulb, namely sealing the glass sheet, the glass cone and the glass tube to obtain the glass bulb;
(2) manufacturing a screen: coating fluorescent powder in the glass shell to form a fluorescent powder layer, coating graphite in the glass shell to form a graphite layer, and evaporating aluminum in the glass shell to form an aluminum layer to obtain a finished glass shell;
(3) assembling an electron gun: assembling the electron gun into a finished glass shell;
(4) and (3) sealing: sealing the tube orifice of the finished glass tube with the glass core column disc of the electron gun;
(5) exhausting: exhausting the sealed finished glass shell to make the inside of the finished glass shell in a vacuum state to obtain a display tube;
(6) and (3) aging test: carrying out high-low pressure aging and point parameter testing on the display tube subjected to exhaust;
(7) encapsulating: and (4) encapsulating the wires required by installation through a flange plate to obtain the finished product display tube.
Further, annealing, degassing and deburring are carried out on the gold ball part of the electron gun in the step 3.
Further, the length of the electron gun in step 3 is 40 mm.
Further, the length of the glass envelope in the step 1 is 125 mm.
Example 1
A manufacturing process of a short tube CRT display tube comprises the following steps:
(1) manufacturing a glass bulb, namely sealing the glass sheet, the glass cone and the glass tube to obtain the glass bulb;
(2) manufacturing a screen: coating fluorescent powder in the glass shell to form a fluorescent powder layer, coating graphite in the glass shell to form a graphite layer, and evaporating aluminum in the glass shell to form an aluminum layer to obtain a finished glass shell;
(3) assembling an electron gun: assembling the electron gun into a finished glass shell;
(4) and (3) sealing: sealing the tube orifice of the finished glass tube with the glass core column disc of the electron gun;
(5) exhausting: exhausting the sealed finished glass shell to make the inside of the finished glass shell in a vacuum state to obtain a display tube;
(6) and (3) aging test: carrying out high-low pressure aging and point parameter testing on the display tube subjected to exhaust;
(7) encapsulating: and (4) encapsulating the wires required by installation through a flange plate to obtain the finished product display tube.
Example 2
In addition to example 1, the gold ball part of the electron gun in step 3 was subjected to annealing, degassing, and deburring.
Example 3
On the basis of example 1, the length of the electron gun in step 3 was 40 mm.
Example 4
On the basis of example 1, the length of the envelope in step 1 was 125 mm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (4)
1. The manufacturing process of the short tube CRT display tube is characterized by comprising the following steps:
(1) manufacturing a glass bulb, namely sealing the glass sheet, the glass cone and the glass tube to obtain the glass bulb;
(2) manufacturing a screen: coating fluorescent powder in the glass shell to form a fluorescent powder layer, coating graphite in the glass shell to form a graphite layer, and evaporating aluminum in the glass shell to form an aluminum layer to obtain a finished glass shell;
(3) assembling an electron gun: assembling the electron gun into a finished glass shell;
(4) and (3) sealing: sealing the tube orifice of the finished glass tube with the glass core column disc of the electron gun;
(5) exhausting: exhausting the sealed finished glass shell to make the inside of the finished glass shell in a vacuum state to obtain a display tube;
(6) and (3) aging test: carrying out high-low pressure aging and point parameter testing on the display tube subjected to exhaust;
(7) encapsulating: and (4) encapsulating the wires required by installation through a flange plate to obtain the finished product display tube.
2. A process for manufacturing a short tube CRT display tube as claimed in claim 1, wherein the gold ball part of the electron gun in said step 3 is subjected to annealing, degassing and deburring.
3. A process for manufacturing a short tube CRT display tube as claimed in claim 1, wherein the length of the electron gun in the step 3 is 40 mm.
4. A process for manufacturing a short tube CRT display tube as claimed in claim 1, wherein the length of the glass bulb in step 1 is 125 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908904.XA CN112017928A (en) | 2020-09-02 | 2020-09-02 | Manufacturing process of short tube CRT display tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908904.XA CN112017928A (en) | 2020-09-02 | 2020-09-02 | Manufacturing process of short tube CRT display tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112017928A true CN112017928A (en) | 2020-12-01 |
Family
ID=73515629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010908904.XA Pending CN112017928A (en) | 2020-09-02 | 2020-09-02 | Manufacturing process of short tube CRT display tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112017928A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153223A (en) * | 1995-09-28 | 1997-07-02 | 日矿金属株式会社 | Fe-Ni alloy for parts of electron-gun and blanked parts for electron-gun |
| KR19980037140A (en) * | 1996-11-20 | 1998-08-05 | 손욱 | Method of manufacturing cathode ray tube |
| CN1195032A (en) * | 1997-03-27 | 1998-10-07 | 日矿金属株式会社 | Fe-Ni alloys for electron gun parts and funched electron gun parts |
| JPH1116495A (en) * | 1997-06-25 | 1999-01-22 | Hitachi Ltd | Manufacture of cathode ray tube |
| KR20020062485A (en) * | 2001-01-22 | 2002-07-26 | 가부시키가이샤 히타치세이사쿠쇼 | Cathod Ray Tube |
| US20020121854A1 (en) * | 2001-01-02 | 2002-09-05 | Ha Jae-Young | Cathode ray tube |
| JP2003141998A (en) * | 2001-11-02 | 2003-05-16 | Mitsubishi Electric Corp | Manufacturing method of color cathode-ray tube |
| KR20030081823A (en) * | 2002-04-13 | 2003-10-22 | 삼성에스디아이 주식회사 | Cathode ray tube and manufacturing method thereof |
| CN1530999A (en) * | 2003-03-13 | 2004-09-22 | ����Sdi��ʽ���� | Fe-Cr-Ni alloy as electron gun electrodes |
-
2020
- 2020-09-02 CN CN202010908904.XA patent/CN112017928A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153223A (en) * | 1995-09-28 | 1997-07-02 | 日矿金属株式会社 | Fe-Ni alloy for parts of electron-gun and blanked parts for electron-gun |
| KR19980037140A (en) * | 1996-11-20 | 1998-08-05 | 손욱 | Method of manufacturing cathode ray tube |
| CN1195032A (en) * | 1997-03-27 | 1998-10-07 | 日矿金属株式会社 | Fe-Ni alloys for electron gun parts and funched electron gun parts |
| JPH1116495A (en) * | 1997-06-25 | 1999-01-22 | Hitachi Ltd | Manufacture of cathode ray tube |
| US20020121854A1 (en) * | 2001-01-02 | 2002-09-05 | Ha Jae-Young | Cathode ray tube |
| KR20020062485A (en) * | 2001-01-22 | 2002-07-26 | 가부시키가이샤 히타치세이사쿠쇼 | Cathod Ray Tube |
| JP2003141998A (en) * | 2001-11-02 | 2003-05-16 | Mitsubishi Electric Corp | Manufacturing method of color cathode-ray tube |
| KR20030081823A (en) * | 2002-04-13 | 2003-10-22 | 삼성에스디아이 주식회사 | Cathode ray tube and manufacturing method thereof |
| CN1530999A (en) * | 2003-03-13 | 2004-09-22 | ����Sdi��ʽ���� | Fe-Cr-Ni alloy as electron gun electrodes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2233786A (en) | Fluorescent screen assembly and method of manufacture | |
| CN105869974B (en) | A kind of method integrally assembled for gleam image intensifier | |
| CN112017928A (en) | Manufacturing process of short tube CRT display tube | |
| CN212257343U (en) | Novel short tube CRT display tube | |
| CN111916324A (en) | Short tube CRT display tube | |
| US6979949B2 (en) | Fluorescent luminous tube with getter mirror film | |
| US6310435B1 (en) | Cathode ray tube with getter assembly | |
| JP2000294182A (en) | Field emission electron gun | |
| US3356436A (en) | Gettering system for electron tubes | |
| US2759252A (en) | Method for sealing an iron member to a glass part | |
| CN1251284C (en) | Color cathod ray tube with improved electron gun electrode | |
| US3932011A (en) | Conditioning partially-completed CRT bulb assembly for storage and/or transit | |
| CN201780960U (en) | Onboard miniature helmet-mounted kinescope glass envelope | |
| CN201402788Y (en) | 16:9 wide screen thin type completely flat color kinescope | |
| CN101430995B (en) | Design method for thin cathode ray tube glass screen | |
| CN1320593C (en) | Field emission display with a reflecting layer | |
| EP1549113A1 (en) | A starter for fluorescent lamp and a fluorescent lamp using the starter | |
| CN109411315A (en) | A kind of spherical semiconductor laser | |
| JPS58198834A (en) | Cathode-ray tube | |
| US6717347B2 (en) | Funnel-and-neck sealing body for projection tube | |
| US2941857A (en) | Electron discharge device | |
| JP2002367539A (en) | Cathode-ray tube | |
| JP3404087B2 (en) | Display tube for light source | |
| JPH0883582A (en) | Cathode-ray tube and its manufacture | |
| JP2000057975A (en) | Cathode-ray tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |