JPH02111118U - - Google Patents

Info

Publication number
JPH02111118U
JPH02111118U JP384290U JP384290U JPH02111118U JP H02111118 U JPH02111118 U JP H02111118U JP 384290 U JP384290 U JP 384290U JP 384290 U JP384290 U JP 384290U JP H02111118 U JPH02111118 U JP H02111118U
Authority
JP
Japan
Prior art keywords
display device
contrast
detects
light intensity
detection section
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
JP384290U
Other languages
English (en)
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 filed Critical
Priority to JP384290U priority Critical patent/JPH02111118U/ja
Publication of JPH02111118U publication Critical patent/JPH02111118U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal Display Device Control (AREA)

Description

【図面の簡単な説明】
第１図は本考案のコントラスト調節装置のブロ
ツク図、第２図は本考案のコントラスト調節装置
の一つの実施回路図である。 １０：輝度感知部、２０：温度感知部、３０：
演算部、４０：増幅部、５０：駆動回路、Ｑ１，
Ｑ２：トランジスタ、ＣｄＳ：光センサー、ＴＨ
：熱センサー、Ｒ，Ｒ１，Ｒ２：抵抗器、ＶＲ：
可変抵抗器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 表示装置のコントラストを調節する装置におい
    て、表示装置の周囲光度を検知する光度検知部お
    よび温度を検知する温度検知部と、上記検知手段
    からの信号を演算してこれを表示装置のコントラ
    ストレベル信号として出力する演算部を備えてい
    ることを特徴とする表示装置のコントラスト調節
    装置。
JP384290U 1990-01-18 1990-01-18 Pending JPH02111118U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP384290U JPH02111118U (ja) 1990-01-18 1990-01-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP384290U JPH02111118U (ja) 1990-01-18 1990-01-18

Publications (1)

Publication Number Publication Date
JPH02111118U true JPH02111118U (ja) 1990-09-05

Family

ID=31205834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP384290U Pending JPH02111118U (ja) 1990-01-18 1990-01-18

Country Status (1)

Country Link
JP (1) JPH02111118U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7737963B2 (en) 2001-09-27 2010-06-15 Samsung Electronics Co., Ltd. Liquid crystal display having gray voltages with varying magnitudes and driving method thereof
JP2021129813A (ja) * 2020-02-20 2021-09-09 株式会社トプコン 視標提示装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536844A (en) * 1978-09-07 1980-03-14 Suwa Seikosha Kk Liquid crystal driving circuit for indicating gradation
JPS61175688A (ja) * 1985-01-30 1986-08-07 日本精機株式会社 液晶表示装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536844A (en) * 1978-09-07 1980-03-14 Suwa Seikosha Kk Liquid crystal driving circuit for indicating gradation
JPS61175688A (ja) * 1985-01-30 1986-08-07 日本精機株式会社 液晶表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7737963B2 (en) 2001-09-27 2010-06-15 Samsung Electronics Co., Ltd. Liquid crystal display having gray voltages with varying magnitudes and driving method thereof
JP2021129813A (ja) * 2020-02-20 2021-09-09 株式会社トプコン 視標提示装置

Similar Documents

Publication Publication Date Title
JPH02111118U (ja)
DE59710064D1 (de) Infrarot-Sicherungssystem
JPS637053U (ja)
JPH03115478U (ja)
JPS62126094U (ja)
JPH0435939U (ja)
JPH0171796U (ja)
JPS639695U (ja)
JPH0459151U (ja)
JPH02123691U (ja)
JPH0425964U (ja)
JPH02140334U (ja)
JPH02103228U (ja)
JPH0590445U (ja) 液晶表示器の自動コントラスト調整装置
JPH0216914U (ja)
JPH0358085U (ja)
JPH0449893U (ja)
JPS6325498U (ja)
JPH01142885U (ja)
JPS6431950U (ja)
JPH02150693U (ja)
KR950022796A (ko) 자동 라이트 내장형 캠코더
JPH0358093U (ja)
JPH02123689U (ja)
JPH0238872U (ja)