JPH0467885U - - Google Patents
Info
- Publication number
- JPH0467885U JPH0467885U JP11050390U JP11050390U JPH0467885U JP H0467885 U JPH0467885 U JP H0467885U JP 11050390 U JP11050390 U JP 11050390U JP 11050390 U JP11050390 U JP 11050390U JP H0467885 U JPH0467885 U JP H0467885U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- circuit
- superimposed
- voltage
- circuit block
- 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
- 239000003086 colorant Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Processing Of Color Television Signals (AREA)
- Details Of Television Scanning (AREA)
Description
第１図は、本発明の一実施例を示すブロツク図
。第２図は、本発明の各部波形図。第３図は、従
来のブロツク図である。
１……映像信号入力端子、２……同期信号入力
端子、３……ビデオ増幅回路ブロツク、４……ブ
ラウン管、５……フオーカス電極、６……偏向回
路ブロツク、７……垂直パラボラ電圧発生回路ブ
ロツク、８……水平パラボラ電圧発生回路ブロツ
ク、９……パラボラ波重畳ブロツク、１０……高
圧発生回路ブロツク、１１……三倍水平周期鋸波
発生回路ブロツク、１２……鋸波振幅調整ブロツ
ク、１３……スイツチあるいはスイツチング素子
、１４……鋸波重畳制御回路ブロツク。
FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a waveform diagram of each part of the present invention. FIG. 3 is a conventional block diagram. 1...Video signal input terminal, 2...Synchronizing signal input terminal, 3...Video amplifier circuit block, 4...Cathode ray tube, 5...Focus electrode, 6...Deflection circuit block, 7...Vertical parabolic voltage generation circuit Block, 8... Horizontal parabolic voltage generation circuit block, 9... Parabolic wave superimposition block, 10... High voltage generation circuit block, 11... Triple horizontal period sawtooth wave generation circuit block, 12... Sawtooth wave amplitude adjustment block, 13...Switch or switching element, 14...Sawtooth wave superposition control circuit block.
Claims (1)
フオーカス補正に適したパラボラ波を一水平周期
ごとに、順次、繰り返す様な波形を印加するため
に、通常のダイナミツクフオーカス電圧に重畳す
る電圧を発生する回路と、その重畳する期間を制
御する回路と、色別のフオーカス差を補正調整す
るための回路を備えたことを特徴とする表示装置
。 A voltage that is superimposed on the normal dynamic focus voltage in order to apply a waveform that repeats a parabolic wave suitable for R, G, and B focus correction sequentially every horizontal period to the focus electrode of the CRT. What is claimed is: 1. A display device comprising: a circuit that generates a signal, a circuit that controls a period during which it is superimposed, and a circuit that corrects and adjusts a focus difference between colors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050390U JPH0467885U (en) | 1990-10-24 | 1990-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11050390U JPH0467885U (en) | 1990-10-24 | 1990-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0467885U true JPH0467885U (en) | 1992-06-16 |
Family
ID=31857842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11050390U Pending JPH0467885U (en) | 1990-10-24 | 1990-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0467885U (en) |
-
1990
- 1990-10-24 JP JP11050390U patent/JPH0467885U/ja active Pending
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