JPS58152674U

JPS58152674U - display device

Info

Publication number: JPS58152674U
Application number: JP4939382U
Authority: JP
Inventors: 川田　博
Original assignee: 日産自動車株式会社
Priority date: 1982-04-07
Filing date: 1982-04-07
Publication date: 1983-10-13

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図は従来例を示す要部構成図、第２図は同上従来例
の回路図、第３図は別の従来例を示す要部構成図、第４
図は本考案の１実施例を示す要部構成図、第５図は同上
実施例の回路図を示す。２１・・・液晶セル、２２・・・液晶セル加熱用ヒータ
、２３・・・ダミー、２４・・・ダミー加熱用ヒータ、
２５・・・感温素子、２６・・・制御回路、５・・・コ
ンパレータ、７・・・トランジスタ。Fig. 1 is a main part configuration diagram showing a conventional example, Fig. 2 is a circuit diagram of the same conventional example, Fig. 3 is a main part configuration diagram showing another conventional example, and Fig. 4
The figure shows a main part configuration diagram showing one embodiment of the present invention, and FIG. 5 shows a circuit diagram of the same embodiment. 21... Liquid crystal cell, 22... Liquid crystal cell heating heater, 23... Dummy, 24... Dummy heating heater,
25... Temperature sensing element, 26... Control circuit, 5... Comparator, 7... Transistor.

Claims

[Scope of utility model registration request]

In a display device that heats a display element when the display element is at a low temperature, the dummy of the display element and a heater for heating the display element that heats the display element are driven in synchronization to heat the dummy to approximately the same temperature as the display element. A dummy heater for heating the dummy and a dummy temperature detection sensor for detecting the dummy temperature are mounted on the same circuit board, and the display element heating heater is driven and controlled based on the temperature detected by the dummy temperature detection sensor. 1. A display device comprising a control means for detecting a dummy temperature and controlling a display element temperature.