JPS5912186U

JPS5912186U - CRT display device

Info

Publication number: JPS5912186U
Application number: JP10751082U
Authority: JP
Inventors: 日比野　政博
Original assignee: 三菱電機株式会社
Priority date: 1982-07-15
Filing date: 1982-07-15
Publication date: 1984-01-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は周囲の明かるさと表示輝度との関係を示す図、
第２図は従来の装置の概略構成図、第３図は従来の装置
の信号波形図、第４図はこの考案による装置の概略構成
図、第５図はこの考案による装置の信号波形の一例を示
す図、第６図はこの考案による特性の一例を示す図、第
７図はこの考案による特性の他の例を示す図、第８図は
従来およびこの考案による装置の消費電力の例を示す図
であり、１は表示信号発生器、２は偏光信号発生器、３
は輝度信号発生器、４は表示器、５は光検出器、６は輝
度制御器である。なお、図中同一あるいは相当部分には
同一符号を付して示しである。Figure 1 is a diagram showing the relationship between ambient brightness and display brightness.
Fig. 2 is a schematic diagram of a conventional device, Fig. 3 is a signal waveform diagram of a conventional device, Fig. 4 is a schematic diagram of a device according to this invention, and Fig. 5 is an example of signal waveforms of a device according to this invention. 6 is a diagram showing an example of the characteristics according to this invention, FIG. 7 is a diagram showing another example of the characteristics according to this invention, and FIG. 8 is an example of power consumption of the conventional device and the device according to this invention. 1 is a diagram showing a display signal generator, 2 a polarization signal generator, and 3 a display signal generator.
is a brightness signal generator, 4 is a display, 5 is a photodetector, and 6 is a brightness controller. Note that the same or equivalent parts in the figures are indicated by the same reference numerals.

Claims

[Scope of utility model registration request]

□ A display device that performs display, a deflection signal generator and a brightness signal generator that generate input signals to the display device, a display signal generator that generates display signals, and a photodetector that detects surrounding brightness. In a CRT display device that has a display device and changes the display brightness of the display device according to the surrounding brightness, the display brightness of the display device is changed by changing the display time and brightness signal based on the detection output of the photodetector. A CRT display device characterized in that it is provided with a brightness controller for controlling.