JP2005522133A - フォーカス・マスク用のダイナミック・フォーカス電圧 - Google Patents
フォーカス・マスク用のダイナミック・フォーカス電圧 Download PDFInfo
- Publication number
- JP2005522133A JP2005522133A JP2003582782A JP2003582782A JP2005522133A JP 2005522133 A JP2005522133 A JP 2005522133A JP 2003582782 A JP2003582782 A JP 2003582782A JP 2003582782 A JP2003582782 A JP 2003582782A JP 2005522133 A JP2005522133 A JP 2005522133A
- Authority
- JP
- Japan
- Prior art keywords
- focus
- focus voltage
- voltage
- mask
- dynamic
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/26—Modifications of scanning arrangements to improve focusing
-
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
- H01J29/07—Shadow masks for colour television tubes
-
- 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
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
- H01J29/81—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching using shadow masks
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
Description
ビデオ表示装置の陰極線管(CRT)のテンション(tensioned)フォーカス・マスクのための、本発明の特徴を具体化するフォーカス電圧発生器は、間隔をおいて配置された第1の複数のストランド、およびストランドから離され、間隔をおいて配置された第2の複数のクロスワイヤを備える。偏向周波数に関連する周波数の第1の信号源(ソース)が備えられる。波形発生器が第1の信号に応答して、CRTのスクリーン上の電子ビームの位置に従って変化するダイナミック・フォーカス電圧がストランドとクロスワイヤとの間に発生される。
Claims (5)
- 間隔をおいて配置された第1の複数のストランドおよび前記ストランドから離され間隔をおいて配置された第2の複数のクロスワイヤを備えるビデオ表示装置のCRT(陰極線管)のテンション形フォーカス・マスク(tensioned focus mask)用のフォーカス電圧発生器であって、
偏向周波数に関連する周波数の第1の信号のソース(源)と、
前記第1の信号に応答し、前記CRTのスクリーン上の電子ビームの位置に従って変化し且つ前記ストランド(strand)とクロスワイヤ(crosswire)との間に発生されるダイナミック・フォーカス電圧を発生させる波形発生器と、から成る、前記フォーカス電圧発生器。 - 各瞬時において、前記ダイナミック・フォーカス電圧が前記ストランドの各々と前記クロスワイヤの各々との間で同じである、請求項1記載のフォーカス電圧発生器。
- 前記ダイナミック・フォーカス電圧が直流電圧成分を含んでいる、請求項1記載のフォーカス電圧発生器。
- 前記ダイナミック・フォーカス電圧が、水平偏向周波数に関連する周波数の電圧成分、および垂直偏向周波数に関連する周波数の電圧成分を含んでいる、請求項1記載のフォーカス電圧発生器。
- 前記波形発生器が、水平偏向周波数または垂直偏向周波数の全波整流正弦波の発生器から成る、請求項1記載のフォーカス電圧発生器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US36992002P | 2002-04-04 | 2002-04-04 | |
PCT/US2003/010014 WO2003085687A2 (en) | 2002-04-04 | 2003-04-02 | Dynamic focus voltage for a focus mask |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005522133A true JP2005522133A (ja) | 2005-07-21 |
JP2005522133A5 JP2005522133A5 (ja) | 2006-05-11 |
Family
ID=28792004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003582782A Pending JP2005522133A (ja) | 2002-04-04 | 2003-04-02 | フォーカス・マスク用のダイナミック・フォーカス電圧 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050174072A1 (ja) |
EP (1) | EP1490885A4 (ja) |
JP (1) | JP2005522133A (ja) |
KR (1) | KR20040099385A (ja) |
CN (1) | CN1327472C (ja) |
AU (1) | AU2003233471A1 (ja) |
MX (1) | MXPA04009645A (ja) |
WO (1) | WO2003085687A2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006073855A1 (en) * | 2004-12-31 | 2006-07-13 | Thomson Licensing | Apparatus and method for generating dynamic focus signals for transposed scan display systems |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4146816A (en) * | 1977-07-08 | 1979-03-27 | Rca Corporation | Cathode-ray tube with a corrugated mask having a corrugated hinging skirt |
US4464601A (en) * | 1982-08-11 | 1984-08-07 | Rca Corporation | CRT with quadrupolar-focusing color-selection structure |
JPS59144471U (ja) * | 1983-03-18 | 1984-09-27 | テクトロニクス・インコ−ポレイテツド | 陰極線管の焦点制御装置 |
US4701678A (en) * | 1985-12-11 | 1987-10-20 | Zenith Electronics Corporation | Electron gun system with dynamic focus and dynamic convergence |
US4682075A (en) * | 1985-12-19 | 1987-07-21 | Rca Corporation | Image display including improved light-absorbing matrix |
US5036259A (en) * | 1990-11-30 | 1991-07-30 | Zenith Electronics Corporation | Dynamic focus system for CRT display |
US5565746A (en) * | 1994-12-28 | 1996-10-15 | Thomson Consumer Electronics, Inc. | Dynamic focus coupling |
US5646478A (en) * | 1995-07-26 | 1997-07-08 | Thomson Multimedia, S. A. | Uniaxial tension focus mask for a color CRT with electrical connection means |
US5688328A (en) * | 1995-09-13 | 1997-11-18 | Chunghwa Picture Tubes, Ltd. | Apparatus for improved coating of a CRT display screen |
US5929641A (en) * | 1996-08-22 | 1999-07-27 | Thomson Consumer Electronics, Inc. | Breakdown event detector |
US5925991A (en) * | 1996-11-15 | 1999-07-20 | Thomson Consumer Electronics, Inc. | Electron beam focus voltage circuit |
US5981952A (en) * | 1996-11-21 | 1999-11-09 | Victor Company Of Japan, Ltd. | Dynamic focusing apparatus for cathode-ray tube device |
-
2003
- 2003-04-02 CN CNB038075873A patent/CN1327472C/zh not_active Expired - Fee Related
- 2003-04-02 EP EP03728321A patent/EP1490885A4/en not_active Withdrawn
- 2003-04-02 US US10/510,061 patent/US20050174072A1/en not_active Abandoned
- 2003-04-02 WO PCT/US2003/010014 patent/WO2003085687A2/en active Application Filing
- 2003-04-02 JP JP2003582782A patent/JP2005522133A/ja active Pending
- 2003-04-02 KR KR10-2004-7015617A patent/KR20040099385A/ko not_active Application Discontinuation
- 2003-04-02 AU AU2003233471A patent/AU2003233471A1/en not_active Abandoned
- 2003-04-02 MX MXPA04009645A patent/MXPA04009645A/es active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CN1327472C (zh) | 2007-07-18 |
US20050174072A1 (en) | 2005-08-11 |
EP1490885A2 (en) | 2004-12-29 |
EP1490885A4 (en) | 2006-10-25 |
AU2003233471A8 (en) | 2003-10-20 |
AU2003233471A1 (en) | 2003-10-20 |
MXPA04009645A (es) | 2004-12-06 |
CN1650389A (zh) | 2005-08-03 |
WO2003085687A3 (en) | 2003-12-04 |
KR20040099385A (ko) | 2004-11-26 |
WO2003085687A2 (en) | 2003-10-16 |
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