JPH03108292U - - Google Patents
Info
- Publication number
- JPH03108292U JPH03108292U JP1718690U JP1718690U JPH03108292U JP H03108292 U JPH03108292 U JP H03108292U JP 1718690 U JP1718690 U JP 1718690U JP 1718690 U JP1718690 U JP 1718690U JP H03108292 U JPH03108292 U JP H03108292U
- Authority
- JP
- Japan
- Prior art keywords
- external light
- intensity
- display screen
- filter
- crt display
- 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
- 238000002834 transmittance Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案の一実施例に係るデイスプレイ
装置の断面図、第２図は第１図のデイスプレイ装
置の外観斜視図、第３図は外来光と可変透過率フ
イルタの透過率との関係を示す特性図、第４図は
外来光と画面コントラスト調整との関係を示す特
性図、第５図は外来光とデイスプレイ画面上で得
られる画面のコントラストとの関係を示す特性図
である。
１……可変透過率フイルタ、２……外来光セン
サ、３……デイスプレイ画面、４……デイスプレ
イ本体、５……ＣＲＴ、６……映像入力信号、７
……映像回路、８……制御回路。
Fig. 1 is a sectional view of a display device according to an embodiment of the present invention, Fig. 2 is an external perspective view of the display device of Fig. 1, and Fig. 3 is the relationship between external light and the transmittance of the variable transmittance filter. FIG. 4 is a characteristic diagram showing the relationship between external light and screen contrast adjustment, and FIG. 5 is a characteristic diagram showing the relationship between external light and screen contrast obtained on the display screen. 1... Variable transmittance filter, 2... External light sensor, 3... Display screen, 4... Display main body, 5... CRT, 6... Video input signal, 7
...Video circuit, 8...Control circuit.
Claims (1)
、外来光強度に応じて透過率を変化させるフイル
タと、 外来光の強度を検出するセンサと、 前記センサからの出力に応じて、前記ＣＲＴデ
イスプレイ表示画面上の映像のコントラストを変
化させる制御手段と、 を備えることを特徴とするデイスプレイ装置。[Scope of Claim for Utility Model Registration] A filter that is placed in front of a CRT display screen and whose transmittance changes according to the intensity of external light; a sensor that detects the intensity of external light; and a filter that changes the transmittance according to the intensity of external light; , and a control means for changing the contrast of an image on the CRT display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1718690U JPH03108292U (en) | 1990-02-22 | 1990-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1718690U JPH03108292U (en) | 1990-02-22 | 1990-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03108292U true JPH03108292U (en) | 1991-11-07 |
Family
ID=31520417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1718690U Pending JPH03108292U (en) | 1990-02-22 | 1990-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03108292U (en) |
-
1990
- 1990-02-22 JP JP1718690U patent/JPH03108292U/ja active Pending