JPH0392633U - - Google Patents
Info
- Publication number
- JPH0392633U JPH0392633U JP64190U JP64190U JPH0392633U JP H0392633 U JPH0392633 U JP H0392633U JP 64190 U JP64190 U JP 64190U JP 64190 U JP64190 U JP 64190U JP H0392633 U JPH0392633 U JP H0392633U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- projection device
- crystal projection
- lamp
- ballast
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例である液晶プロジエ
クシヨンテレビジヨン装置の構成図、第２図は前
記実施例における安定器及び温度センサの回路図
である。
１……液晶プロジエクシヨンテレビジヨン本体
、３……ランプ、８Ｂ，８Ｒ，８Ｇ……液晶パネ
ル、２０……安定器、２２……温度センサ、３６
……パルス幅変調方式のスイツチングレギユレー
タ制御回路ＩＣ（制御手段）、ＶＴ……温度セン
サの検出電圧（検出値）。
FIG. 1 is a block diagram of a liquid crystal projection television apparatus according to an embodiment of the present invention, and FIG. 2 is a circuit diagram of a ballast and a temperature sensor in the embodiment. 1... Liquid crystal projection television body, 3... Lamp, 8B, 8R, 8G... Liquid crystal panel, 20... Ballast, 22... Temperature sensor, 36
. . . Pulse width modulation switching regulator control circuit IC (control means), VT . . . Detection voltage (detection value) of the temperature sensor.
Claims (1)
ランプより発する光を、映像信号が入力される液
晶パネルに入射して、前記映像信号に対応する映
像を形成する液晶プロジエクシヨン装置において
、 前記液晶プロジエクシヨン装置内部の温度を検
出する温度センサと、 前記安定器から前記ランプへの供給電力と前記
液晶プロジエクシヨン装置内部の温度とが負の相
関関係を持つように前記温度センサの検出値に基
づいて前記供給電力を制御する制御手段と、 を有することを特徴とする液晶プロジエクシヨン
装置。[Claims for Utility Model Registration] Light emitted from the lamp by electric power supplied from the ballast to the lamp is incident on a liquid crystal panel into which a video signal is input to form an image corresponding to the video signal. In the liquid crystal projection device, the temperature sensor detects the temperature inside the liquid crystal projection device, and the power supplied from the ballast to the lamp has a negative correlation with the temperature inside the liquid crystal projection device. a control means for controlling the supplied power based on a detected value of the temperature sensor so that the liquid crystal projection device has the following features:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP64190U JPH0392633U (en) | 1990-01-09 | 1990-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP64190U JPH0392633U (en) | 1990-01-09 | 1990-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0392633U true JPH0392633U (en) | 1991-09-20 |
Family
ID=31504582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP64190U Pending JPH0392633U (en) | 1990-01-09 | 1990-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0392633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538872A (en) * | 2005-04-13 | 2008-11-06 | インリア・インスティテュート・ナショナル・ドゥ・ルシェルチェ・アン・インフォマティック・エ・アン・アートマティック | Simultaneous information context distribution system in public mode and individual mode |
-
1990
- 1990-01-09 JP JP64190U patent/JPH0392633U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008538872A (en) * | 2005-04-13 | 2008-11-06 | インリア・インスティテュート・ナショナル・ドゥ・ルシェルチェ・アン・インフォマティック・エ・アン・アートマティック | Simultaneous information context distribution system in public mode and individual mode |
| JP4926167B2 (en) * | 2005-04-13 | 2012-05-09 | インリア・インスティテュート・ナショナル・ドゥ・ルシェルチェ・アン・インフォマティック・エ・アン・アートマティック | Simultaneous information context distribution system in public mode and individual mode |
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