JPS58158561U - CRT display device pincushion distortion correction circuit - Google Patents
CRT display device pincushion distortion correction circuitInfo
- Publication number
- JPS58158561U JPS58158561U JP5474782U JP5474782U JPS58158561U JP S58158561 U JPS58158561 U JP S58158561U JP 5474782 U JP5474782 U JP 5474782U JP 5474782 U JP5474782 U JP 5474782U JP S58158561 U JPS58158561 U JP S58158561U
- Authority
- JP
- Japan
- Prior art keywords
- display device
- crt display
- pincushion distortion
- correction circuit
- distortion correction
- 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
- Details Of Television Scanning (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のＣＲＴ表示装置の水平偏向系、高圧系を
示す回路図、第２図は、この考案の一実施例によるＣＲ
Ｔ表示装置の水平偏向系、高圧系を示す回路図、第３図
〜第５図は第２図の動作を説明するための動作説明図で
ある。
図に於いて、１・・・・・・フライバックトランス、２
・・・・・・水平偏向コイル、３・・・・・・直線性補
正コンデンサ、４・・・・・・水平出力トランジスタ、
５・・・・・・ダンパーダイオード、６・・・・・・共
振コンデンサ、７・・・・・・ＣＲＴ、８・・・・・・
フォーカスグリッド、９・・・・・・スクリーンバイア
スグリッド、１０・・・・・・ビデオ出力部、１１・・
・・・・フォーカス調整ボリウム、１２・・・・・・ス
クリーン調整ボリウム、１５・・・・・・電圧供給コン
デンサ、１６・・・・・・フォーカス、スクリーン調整
ボリウム、１７・・・・・・フォーカス、スク゛リーン
電圧制御部、１８・・・・・・ビデオ出力制御部、１９
・；・・・・電圧制御部、２０・・・・・・ノコギリ波
発生部、なお、図中同一符号 ゛は同−又は相当部分
を示す。
ｒ′
′−工゛“ 、士・利 １−１Fig. 1 is a circuit diagram showing the horizontal deflection system and high voltage system of a conventional CRT display device, and Fig. 2 is a circuit diagram showing a CRT system according to an embodiment of this invention.
A circuit diagram showing a horizontal deflection system and a high voltage system of the T display device, and FIGS. 3 to 5 are operation explanatory diagrams for explaining the operation of FIG. 2. In the diagram, 1...Flyback transformer, 2
...Horizontal deflection coil, 3 ... Linearity correction capacitor, 4 ... Horizontal output transistor,
5... Damper diode, 6... Resonant capacitor, 7... CRT, 8...
Focus grid, 9...Screen bias grid, 10...Video output section, 11...
...Focus adjustment volume, 12...Screen adjustment volume, 15...Voltage supply capacitor, 16...Focus, screen adjustment volume, 17... Focus, screen voltage control section, 18...Video output control section, 19
. . . Voltage control section, 20 . . . Sawtooth wave generation section, and the same reference numerals ゛ in the drawings indicate the same or equivalent parts. r′ ′−工゛“ 、shi・ri 1-1
Claims (1)
そのＣＲＴアノード電圧を発生するフライバックトラン
スの一次側供給電源に垂直走査周期（あるいはその−１
周期）のパラボラ電圧を重畳することにより、左右糸巻
歪を補正することを特徴とするＣＲＴ表示装置の糸巻歪
補正回路。In a CRT display device using a CRT (cathode ray tube),
The primary side supply power of the flyback transformer that generates the CRT anode voltage is
1. A pincushion distortion correction circuit for a CRT display device, characterized in that the left and right pincushion distortion is corrected by superimposing a parabolic voltage with a period).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5474782U JPS58158561U (en) | 1982-04-13 | 1982-04-13 | CRT display device pincushion distortion correction circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5474782U JPS58158561U (en) | 1982-04-13 | 1982-04-13 | CRT display device pincushion distortion correction circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58158561U true JPS58158561U (en) | 1983-10-22 |
Family
ID=30065361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5474782U Pending JPS58158561U (en) | 1982-04-13 | 1982-04-13 | CRT display device pincushion distortion correction circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58158561U (en) |
-
1982
- 1982-04-13 JP JP5474782U patent/JPS58158561U/en active Pending
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