JPH0461395U - - Google Patents
Info
- Publication number
- JPH0461395U JPH0461395U JP10369390U JP10369390U JPH0461395U JP H0461395 U JPH0461395 U JP H0461395U JP 10369390 U JP10369390 U JP 10369390U JP 10369390 U JP10369390 U JP 10369390U JP H0461395 U JPH0461395 U JP H0461395U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- light emitting
- display
- matrix
- light receiving
- 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
- 239000011159 matrix material Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図は従来の装置を示す構成図である。
図において、１は発光素子、２はマトリクス表
示器、３はスイツチング素子、４は駆動素子、５
は電源、６は駆動回路、７は走査回路、８は制御
回路、９は発光輝度検出用の受光センサー、１０
は駆動電源、１１は発光面照度検出用の受光セン
サー、１２は駆動電源、１３は基準信号源、１４
は平均回路、１５は乗算素子、１６は比較素子、
１７はコントラスト制御回路である。なお、各図
中、同一符号は同一、または相当部分を示す。
FIG. 1 is a block diagram showing an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional device. In the figure, 1 is a light emitting element, 2 is a matrix display, 3 is a switching element, 4 is a driving element, and 5
is a power supply, 6 is a drive circuit, 7 is a scanning circuit, 8 is a control circuit, 9 is a light receiving sensor for detecting luminance of emitted light, 10
11 is a light receiving sensor for detecting illuminance on the light emitting surface; 12 is a driving power source; 13 is a reference signal source; 14
is an average circuit, 15 is a multiplication element, 16 is a comparison element,
17 is a contrast control circuit. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
構成したマトリクス表示器と、このマトリクス表
示器を駆動するための駆動回路と、このマトリク
ス表示器を線順次走査するための走査回路と、外
部から与えられる表示データを処理し、上記駆動
回路及び走査回路を制御する制御回路で構成され
るドツトマトリクス型表示装置において、各発光
素子に発光輝度を検出する受光センサーと発光面
照度を検出する受光センサーを設け、この２つの
受光センサーからの信号によつて、表示のコント
ラストを自動制御するコントラスト制御回路を有
することを特徴とするドツトマトリクス型表示装
置。 A matrix display configured by arranging light emitting elements in a matrix, a drive circuit for driving this matrix display, a scanning circuit for line-sequential scanning of this matrix display, and an externally provided display. In a dot matrix type display device comprising a control circuit that processes data and controls the driving circuit and the scanning circuit, each light emitting element is provided with a light receiving sensor that detects the luminance of the light emitted and a light receiving sensor that detects the illuminance of the light emitting surface, A dot matrix display device characterized by having a contrast control circuit that automatically controls display contrast based on signals from the two light receiving sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10369390U JPH0461395U (en) | 1990-10-02 | 1990-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10369390U JPH0461395U (en) | 1990-10-02 | 1990-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0461395U true JPH0461395U (en) | 1992-05-26 |
Family
ID=31848661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10369390U Pending JPH0461395U (en) | 1990-10-02 | 1990-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0461395U (en) |
-
1990
- 1990-10-02 JP JP10369390U patent/JPH0461395U/ja active Pending