JPH11143389A5 - - Google Patents

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Publication number
JPH11143389A5
JPH11143389A5 JP1997327236A JP32723697A JPH11143389A5 JP H11143389 A5 JPH11143389 A5 JP H11143389A5 JP 1997327236 A JP1997327236 A JP 1997327236A JP 32723697 A JP32723697 A JP 32723697A JP H11143389 A5 JPH11143389 A5 JP H11143389A5
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
backlight
environmental temperature
lighting
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.)
Granted
Application number
JP1997327236A
Other languages
Japanese (ja)
Other versions
JP4054423B2 (en
JPH11143389A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP32723697A priority Critical patent/JP4054423B2/en
Priority claimed from JP32723697A external-priority patent/JP4054423B2/en
Publication of JPH11143389A publication Critical patent/JPH11143389A/en
Publication of JPH11143389A5 publication Critical patent/JPH11143389A5/ja
Application granted granted Critical
Publication of JP4054423B2 publication Critical patent/JP4054423B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【0001】
【発明の属する技術分野】本発明は、透過型の液晶表示手段と、該液晶表示手段の後方に配置されたバックライト手段とを有する液晶表示装置の改良に関するものである。
[0001]
FIELD OF THE INVENTION The present invention relates to an improvement in a liquid crystal display device having a transmissive liquid crystal display means and a backlight means arranged behind the liquid crystal display means.

【0026】
【課題を解決するための手段】上記第1の目的を達成するために、請求項1記載の本発明は、透過型の液晶表示手段と、該液晶表示手段を点灯制御する液晶駆動手段と、前記液晶表示手段の後方に配置されたバックライト手段と、該バックライト手段を点灯制御するバックライト駆動手段と、環境温度測定手段と、該環境温度測定手段にて得られた環境温度に応じて、前記液晶表示手段の表示変化開始から前記バックライト手段の点灯開始までの遅延時間を変化させる表示制御手段とを有した液晶表示装置とするものである。
[0026]
[Means for Solving the Problems] In order to achieve the first object, the present invention as set forth in claim 1 provides a liquid crystal display device having a transmissive liquid crystal display means, a liquid crystal driving means for controlling the lighting of the liquid crystal display means, a backlight means arranged behind the liquid crystal display means, a backlight driving means for controlling the lighting of the backlight means, an environmental temperature measuring means, and a display control means for changing the delay time from when the display of the liquid crystal display means starts to change until when the lighting of the backlight means starts, depending on the environmental temperature obtained by the environmental temperature measuring means.

MPU100は環境温度に対応した測距点表示用液晶表示パネル13の基準駆動電圧を決定した後、液晶表示回路110に出力する。すると、該液晶表示回路110はMPU100から得た基準駆動電圧を基に昇圧した駆動電圧を用いてファインダ内液晶表示パネル17と外部液晶表示パネル18、さらに測距点表示用の液晶表示パネル13の表示内容を制御する。 The MPU 100 determines the reference drive voltage for the focus detection point display liquid crystal display panel 13 that corresponds to the environmental temperature, and then outputs it to the liquid crystal display circuit 110. The liquid crystal display circuit 110 then controls the display contents of the in-finder liquid crystal display panel 17, the external liquid crystal display panel 18, and the focus detection point display liquid crystal display panel 13 using a drive voltage that is boosted based on the reference drive voltage obtained from the MPU 100.

ステップ(9)においては、MPU100は焦点検出回路104と通信してAFセンサ10の出力信号を制御し、受け取った画素情報を基に測距(オートフォーカス)動作を行う。この測距動作の詳細なルーチンについては本発明とは直接関わりが無いので説明は省略する。この測距動作が完了するとステップ(10)へ進み、測光回路105の出力を読み込むことで被写体輝度情報を得、自動露出モードであれば最適な露出制御を行うべくシャッタ速度や絞り値を決定する。さらに、MPU100は液晶表示回路110に通信して決定されたシャッタ速度や絞り値の情報を出力してこれを外部液晶表示パネル18に表示させる。 In step (9), the MPU 100 communicates with the focus detection circuit 104 to control the output signal of the AF sensor 10 and performs distance measurement (autofocus) based on the received pixel information. The detailed routine of this distance measurement is not directly related to the present invention, so a detailed explanation is omitted. Once this distance measurement is complete, the process proceeds to step (10), where the output of the photometry circuit 105 is read to obtain subject brightness information. If the automatic exposure mode is selected, the shutter speed and aperture value are determined to provide optimal exposure control. Furthermore, the MPU 100 communicates with the liquid crystal display circuit 110 to output the determined shutter speed and aperture value information, which are then displayed on the external liquid crystal display panel 18 .

(発明と実施の形態の対応)上記実施の各形態において、測距点表示用液晶表示パネル13が本発明の透過型の液晶表示手段に、液晶表示回路110が本発明の液晶表示駆動手段に、バックライト11が本発明のバックライト手段に、バックライト駆動回路103が本発明のバックライト駆動手段に、MPU100が本発明の表示制御手段に、それぞれ相当する。 (Correspondence between the invention and the embodiments) In each of the above embodiments, the liquid crystal display panel 13 for displaying the distance measurement point corresponds to the transmissive liquid crystal display means of the present invention, the liquid crystal display circuit 110 corresponds to the liquid crystal display driving means of the present invention, the backlight 11 corresponds to the backlight means of the present invention, the backlight driving circuit 103 corresponds to the backlight driving means of the present invention, and the MPU 100 corresponds to the display control means of the present invention.

Claims (1)

透過型の液晶表示手段と、該液晶表示手段を点灯制御する液晶駆動手段と、前記液晶表示手段の後方に配置されたバックライト手段と、該バックライト手段を点灯制御するバックライト駆動手段と、環境温度測定手段と、該環境温度測定手段にて得られた環境温度に応じて、前記液晶表示手段の表示変化開始から前記バックライト手段の点灯開始までの遅延時間を変化させる表示制御手段とを有したことを特徴とする液晶表示装置。A liquid crystal display device comprising: a transmissive liquid crystal display means; a liquid crystal driving means for controlling the lighting of said liquid crystal display means; a backlight means arranged behind said liquid crystal display means; a backlight driving means for controlling the lighting of said backlight means; an environmental temperature measuring means; and a display control means for changing a delay time from when the display of said liquid crystal display means starts to change to when the lighting of said backlight means starts, in accordance with the environmental temperature obtained by said environmental temperature measuring means.
JP32723697A 1997-11-13 1997-11-13 Liquid crystal display Expired - Fee Related JP4054423B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32723697A JP4054423B2 (en) 1997-11-13 1997-11-13 Liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32723697A JP4054423B2 (en) 1997-11-13 1997-11-13 Liquid crystal display

Publications (3)

Publication Number Publication Date
JPH11143389A JPH11143389A (en) 1999-05-28
JPH11143389A5 true JPH11143389A5 (en) 2005-04-14
JP4054423B2 JP4054423B2 (en) 2008-02-27

Family

ID=18196856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32723697A Expired - Fee Related JP4054423B2 (en) 1997-11-13 1997-11-13 Liquid crystal display

Country Status (1)

Country Link
JP (1) JP4054423B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW546624B (en) * 2001-03-30 2003-08-11 Matsushita Electric Industrial Co Ltd Display device
TWI331741B (en) 2006-10-14 2010-10-11 Au Optronics Corp System and driving method for color sequencial liquid crystal display (lcd)
JP2011099879A (en) * 2008-02-26 2011-05-19 Mitsubishi Electric Corp Liquid crystal display device
JP2010243765A (en) * 2009-04-06 2010-10-28 Canon Inc Display device and display device for optical instrument
JP2013053826A (en) * 2011-09-06 2013-03-21 Panasonic Corp Storage type water heater
CN103000144B (en) * 2012-12-24 2016-05-04 深圳Tcl新技术有限公司 A kind of backlight adjusting method of liquid crystal indicator and device

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