JPH02185175A - Automatic brightness adjusting device - Google Patents

Automatic brightness adjusting device

Info

Publication number
JPH02185175A
JPH02185175A JP513589A JP513589A JPH02185175A JP H02185175 A JPH02185175 A JP H02185175A JP 513589 A JP513589 A JP 513589A JP 513589 A JP513589 A JP 513589A JP H02185175 A JPH02185175 A JP H02185175A
Authority
JP
Japan
Prior art keywords
brightness
crt
sensor
control section
lightness
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
Application number
JP513589A
Other languages
Japanese (ja)
Inventor
Tokuji Okuno
奥野　徳司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP513589A priority Critical patent/JPH02185175A/en
Publication of JPH02185175A publication Critical patent/JPH02185175A/en
Pending legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)

Abstract

PURPOSE:To automatize the brightness adjustment of a CRT by providing a sensor sensing the external lightness, a sensor sensing the lightness of a CRT display section and a brightness control section applying the brightness adjustment of the CRT with an output signal from the sensors. CONSTITUTION:When the lightness at the outside of a CRT is changed, it is sensed by a sensor 3 and the lightness of a display section is changed through a brightness control section. The change is sensed by a sensor 4 to report it to a brightness control section 2, which compares the change reported from the sensor 3 with that from the sensor 4 and gives the discriminated signal to a CRT control section 1. The CRT control section 1 adjusts the brightness of the CRT and when the result of comparing the changes reported from the sensors 3, 4 tells no change, the adjustment of the brightness of the CRT is finished.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は自動輝度調整装置に関し、特に端末用ＣＲＴに
おける自動輝度調整装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic brightness adjustment device, and particularly to an automatic brightness adjustment device in a terminal CRT.

〔従来の技術〕[Conventional technology]

従来、この種の輝度調整装置は、外部の明るさが変化す
ると、輝度調整ボリュームにより、ＣＲＴの輝度を調整
する必要があった。Conventionally, in this type of brightness adjustment device, when external brightness changes, it has been necessary to adjust the brightness of the CRT using a brightness adjustment volume.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のＣＲＴ輝度調整装置は、輝度調整ボリュ
ームを必要とした。又、輝度調整ボリュームがＣＲＴの
前面以外の部分（上面、背面等）に位置していると、輝
度調整に手間がかかるという欠点があった。The conventional CRT brightness adjustment device described above required a brightness adjustment volume. Furthermore, if the brightness adjustment volume is located on a portion other than the front surface of the CRT (top surface, back surface, etc.), there is a drawback that brightness adjustment takes time and effort.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の自動輝度調整装置は、外部の明るさを検知する
センサと、ＣＲＴ表示部の明るさを感知するセンサと、
前記センサからの出力信号によりＣＲＴの輝度調整を行
う輝度コントロール部とを有している。The automatic brightness adjustment device of the present invention includes a sensor that detects external brightness, a sensor that senses the brightness of a CRT display section,
and a brightness control section that adjusts the brightness of the CRT based on the output signal from the sensor.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の一実施例におけるＣＲＴを示す外形図
であり、第２図はその構成を示す図である０図において
、本発明の一実施例は端末に接続されるＣＲＴの自動輝
度調整装置でＣＲ７表示部５と、外部の明るさを検知す
るセンサ３と、ＣＲＴの前面に設けられ、ＣＲＴ表示部
の明るさを感知するセンサ４とを有している。Fig. 1 is an outline drawing showing a CRT in an embodiment of the present invention, and Fig. 2 is a diagram showing its configuration. The adjusting device includes a CR7 display section 5, a sensor 3 for detecting external brightness, and a sensor 4 provided on the front surface of the CRT for detecting the brightness of the CRT display section.

更に、この実施例においては第２図に示すようにセンサ
３とセンサ４とが輝度コントロール部２に接続されてお
り、この輝度コントロール部２はＣＲ７表示部５を制御
するＣＲＴ制御部１に接続されている。Furthermore, in this embodiment, as shown in FIG. has been done.

本発明の一実施例において、ＣＲＴ外部の明るさが変化
すると、センサ３が感知して輝度コントロール部を通し
表示部の明るさが変化する。この変化分をセンサ４が感
知し輝度コントロール部２に知らせる。輝度コントロー
ル部２は、センサ３の変化分とセンサ４の変化分を比較
し、その信号をＣＲＴ制御部１に供給する。ＣＲＴ制御
部１はＣＲＴの輝度の調整を行うが、センサ３とセンサ
４の変化分を比較して同じになるとそのＣＲＴの輝度の
調整が終了する。In one embodiment of the present invention, when the brightness outside the CRT changes, the sensor 3 senses it and changes the brightness of the display section through the brightness control section. The sensor 4 detects this change and informs the brightness control section 2 of the change. The brightness control section 2 compares the amount of change in the sensor 3 with the amount of change in the sensor 4, and supplies the signal to the CRT control section 1. The CRT control unit 1 adjusts the brightness of the CRT, and when the changes of the sensors 3 and 4 are compared and become the same, the adjustment of the brightness of the CRT is completed.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、外部の明るさを感知する
センサ及び表示部の明るさを感知するセンサにより、Ｃ
ＲＴの輝度調整を自動化できる効果がある。As explained above, the present invention uses a sensor that detects external brightness and a sensor that detects the brightness of the display section.
This has the effect of automating RT brightness adjustment.

【図面の簡単な説明】 第１図は本発明の一実施例におけるＣＲＴ装置を示す外
形図、第２図は本発明の一実施例であるＣＲＴを示す図
である。 １・・・ＣＲＴ制御部、２・・・輝度コントロール部、
３・・・センサ、４・・・センサ、５・・・表示部。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view showing a CRT device according to an embodiment of the invention, and FIG. 2 is a diagram showing a CRT according to an embodiment of the invention. 1... CRT control section, 2... Brightness control section,
3...sensor, 4...sensor, 5...display section.

Claims (1)

【特許請求の範囲】[Claims] 端末に接続するＣＲＴにおいて、外部の明るさを検知す
るセンサと、ＣＲＴ表示部の明るさを感知するセンサと
、前記センサからの出力信号によりＣＲＴの輝度調整を
行う輝度コントロール部とを有することを特徴とする自
動輝度調整装置。A CRT connected to a terminal includes a sensor that detects external brightness, a sensor that detects the brightness of a CRT display section, and a brightness control section that adjusts the brightness of the CRT using an output signal from the sensor. Features an automatic brightness adjustment device.
JP513589A 1989-01-11 1989-01-11 Automatic brightness adjusting device Pending JPH02185175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP513589A JPH02185175A (en) 1989-01-11 1989-01-11 Automatic brightness adjusting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP513589A JPH02185175A (en) 1989-01-11 1989-01-11 Automatic brightness adjusting device

Publications (1)

Publication Number Publication Date
JPH02185175A true JPH02185175A (en) 1990-07-19

Family

ID=11602867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP513589A Pending JPH02185175A (en) 1989-01-11 1989-01-11 Automatic brightness adjusting device

Country Status (1)

Country Link
JP (1) JPH02185175A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389730A (en) * 2002-06-14 2003-12-17 Mitac Int Corp Display with automatic brightness control
GB2422737A (en) * 2005-01-26 2006-08-02 Sharp Kk Multiple-view display and display controller
JP2009542398A (en) * 2006-07-10 2009-12-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ System and method for displaying ultrasonic images in various ambient light in compliance with DICOM

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2389730A (en) * 2002-06-14 2003-12-17 Mitac Int Corp Display with automatic brightness control
GB2422737A (en) * 2005-01-26 2006-08-02 Sharp Kk Multiple-view display and display controller
US8144079B2 (en) 2005-01-26 2012-03-27 Sharp Kabushiki Kaisha Multiple-viewer multiple-view display and display controller
JP2009542398A (en) * 2006-07-10 2009-12-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ System and method for displaying ultrasonic images in various ambient light in compliance with DICOM

Similar Documents

Publication Publication Date Title
EP1152598A3 (en) On-line calibration system for a dynamically varying color marking device
JPH02185175A (en) Automatic brightness adjusting device
US4597458A (en) Electric balance with adjustable relative precision
WO1997018452A3 (en) Process for testing the operation of fittings
JPS6152483B2 (en)
KR0173105B1 (en) Weight measuring apparatus having adjusting function of zero value and span value
JPH04204118A (en) External zero adjustment device of differential pressure type flowmeter
JP2501224B2 (en) Output voltage adjustment method in pressure sensor circuit
JPH0416235Y2 (en)
JPH01254995A (en) Display control device
JP3255470B2 (en) Display of material testing machine
JPH04188029A (en) Detection control circuit of electronic apparatus
JPH0667159A (en) Liquid crystal display device
JPH04157496A (en) Display luminance control method
JP2638876B2 (en) Sensor controller and sensing method
JPH08265792A (en) Correction circuit
JP2617904B2 (en) Vehicle height determination method in vehicle height adjustment device
JPH0527698A (en) Crt device
KR960028209A (en) Aperture Control of Video Camera
JPH0220122U (en)
JPH01175301U (en)
JPS60115926A (en) Form size detector of copying machine
JPH03136102A (en) Sensor controller
EP0810796A3 (en) Video signal processing apparatus
JPH1049124A (en) Automatic display adjusting device