JPS54110778A - Electrification preventing method on valve glass inner wall surface of color picture tube - Google Patents
Electrification preventing method on valve glass inner wall surface of color picture tubeInfo
- Publication number
- JPS54110778A JPS54110778A JP1766378A JP1766378A JPS54110778A JP S54110778 A JPS54110778 A JP S54110778A JP 1766378 A JP1766378 A JP 1766378A JP 1766378 A JP1766378 A JP 1766378A JP S54110778 A JPS54110778 A JP S54110778A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- specific resistance
- ωcm
- wall surface
- valve
- 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
Landscapes
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
PURPOSE: To prevent the electrification on the inner wall of the valve glass by coating the semiconducting glass composed mainly of V2O5, BaO and P2O5 and featuring the specific resistance of 108W1014Ωcm.
CONSTITUTION: With installation of semiconducting glass 6 featuring the proper specific resistance value at part of the inner wall surface of valve glass 2, the electric charge is accumulated at part of the glass inner wall surface, and thus the high voltage is going to be produced between the glass inner wall and the area of the metal, graphite or the like. As a result, the electric charge flows through glass 6, preventing occurrence of the high voltage. It is hard for the current to flow with the specific resistance of more than 1014Ωcm; while the potential difference between electrodes cannot be held under the specific resistance value of under 108Ωcm since the value is too close to the conductor. With the primary components of V2O5, BaO and P2O5, the production of the glass can be facilitated, also securing easily the specific resistance within the range of 108W 1114Ωcm. The glass of this group features the approximate expansion coefficient to the valve glass as well as the high adhesive performance with the low fusing property. The power of such glass is mixed into the binder to obtain the paste. The paste is then coated at the desired areas and then dried, thus performing the sealing with burning.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1766378A JPS54110778A (en) | 1978-02-20 | 1978-02-20 | Electrification preventing method on valve glass inner wall surface of color picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1766378A JPS54110778A (en) | 1978-02-20 | 1978-02-20 | Electrification preventing method on valve glass inner wall surface of color picture tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54110778A true JPS54110778A (en) | 1979-08-30 |
Family
ID=11950084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1766378A Pending JPS54110778A (en) | 1978-02-20 | 1978-02-20 | Electrification preventing method on valve glass inner wall surface of color picture tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54110778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04120155U (en) * | 1991-04-12 | 1992-10-27 | ジエコー株式会社 | totalizer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5149671A (en) * | 1974-10-26 | 1976-04-30 | Asahi Glass Co Ltd | TAIDENATSU TOKUSEIOKOJOSHITA INKYOKUSENKAN |
| JPS5310959A (en) * | 1976-07-16 | 1978-01-31 | Mitsubishi Electric Corp | Braun tube |
-
1978
- 1978-02-20 JP JP1766378A patent/JPS54110778A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5149671A (en) * | 1974-10-26 | 1976-04-30 | Asahi Glass Co Ltd | TAIDENATSU TOKUSEIOKOJOSHITA INKYOKUSENKAN |
| JPS5310959A (en) * | 1976-07-16 | 1978-01-31 | Mitsubishi Electric Corp | Braun tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04120155U (en) * | 1991-04-12 | 1992-10-27 | ジエコー株式会社 | totalizer |
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