JP2007334092A5 - - Google Patents

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Publication number
JP2007334092A5
JP2007334092A5 JP2006167038A JP2006167038A JP2007334092A5 JP 2007334092 A5 JP2007334092 A5 JP 2007334092A5 JP 2006167038 A JP2006167038 A JP 2006167038A JP 2006167038 A JP2006167038 A JP 2006167038A JP 2007334092 A5 JP2007334092 A5 JP 2007334092A5
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JP
Japan
Prior art keywords
light source
input
projector
image signal
luminance
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JP2006167038A
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Japanese (ja)
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JP2007334092A (en
JP5303824B2 (en
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Priority to JP2006167038A priority Critical patent/JP5303824B2/en
Priority claimed from JP2006167038A external-priority patent/JP5303824B2/en
Publication of JP2007334092A publication Critical patent/JP2007334092A/en
Publication of JP2007334092A5 publication Critical patent/JP2007334092A5/ja
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Claims (6)

固体光源素子で構成された光源を備え、前記光源から射出された光を、外部から入力される画像信号に応じて変調して投写するプロジェクタであって、
前記画像信号の入力の有無を検知する入力信号検知部と、
前記入力信号検知部が、前記画像信号の入力が途絶えたことを検知してからの経過時間に応じて、前記光源の輝度を段階的に低下させる光源駆動部と、
を有することを特徴とするプロジェクタ。
A projector comprising a light source composed of a solid light source element, and modulating and projecting light emitted from the light source according to an image signal input from the outside,
An input signal detector for detecting the presence or absence of input of the image signal;
A light source driving unit that reduces the luminance of the light source in a stepwise manner according to an elapsed time after the input signal detection unit detects that the input of the image signal is interrupted;
A projector comprising:
請求項1に記載のプロジェクタであって、前記光源駆動部は、前記入力信号検知部が前記画像信号の入力が途絶えたことを検知してから所定時間が経過した後に、前記光源を消灯させることを特徴とするプロジェクタ。 The projector according to claim 1 , wherein the light source driving unit turns off the light source after a predetermined time has elapsed since the input signal detection unit detected that the input of the image signal was interrupted. A projector characterized by. 請求項1又は2に記載のプロジェクタであって、前記光源駆動部は、前記光源に供給する電力をパルス幅変調することによって、前記光源の輝度を低下させることを特徴とするプロジェクタ。 3. The projector according to claim 1, wherein the light source driving unit reduces the luminance of the light source by performing pulse width modulation on the power supplied to the light source. 請求項1〜のいずれか1項に記載のプロジェクタであって、前記光源駆動部は、前記光源が消灯した状態、或いは前記光源の輝度が低下した状態で、前記入力信号検知部が前記画像信号の入力を検知したときに、前記光源を当初の輝度で点灯させることを特徴とするプロジェクタ。 The projector according to any one of claims 1 to 3, wherein the light source driving section, a state where the light source was turned off, or in a state where the brightness of the light source is decreased, the input signal detection section is the image A projector characterized in that when the input of a signal is detected, the light source is turned on with an initial luminance. 固体光源素子で構成された光源を備え、前記光源から射出された光を、外部から入力される画像信号に応じて変調して投写するプロジェクタの制御方法であって、
前記画像信号の入力が途絶えたか否かを検知する第1の工程と、
前記第1の工程で、前記画像信号の入力が途絶えたことが検知された場合に、前記光源の輝度を低下させる第2の工程と、
を有することを特徴とするプロジェクタの制御方法。
A projector control method comprising a light source composed of a solid light source element, and modulating and projecting light emitted from the light source according to an image signal input from the outside,
A first step of detecting whether or not the input of the image signal is interrupted;
A second step of reducing the luminance of the light source when it is detected in the first step that the input of the image signal is interrupted;
A projector control method characterized by comprising:
請求項に記載のプロジェクタの制御方法であって、
前記第2の工程の後に、前記画像信号の入力を検知する第3の工程と、
前記第3の工程で、前記画像信号の入力が検知された場合に、前記光源を当初の輝度で点灯させる第4の工程と、
を有することを特徴とするプロジェクタの制御方法。
A projector control method according to claim 5 , comprising:
A third step of detecting the input of the image signal after the second step;
A fourth step of lighting the light source at an initial luminance when the input of the image signal is detected in the third step;
A projector control method characterized by comprising:
JP2006167038A 2006-06-16 2006-06-16 Projector and control method thereof Active JP5303824B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006167038A JP5303824B2 (en) 2006-06-16 2006-06-16 Projector and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006167038A JP5303824B2 (en) 2006-06-16 2006-06-16 Projector and control method thereof

Publications (3)

Publication Number Publication Date
JP2007334092A JP2007334092A (en) 2007-12-27
JP2007334092A5 true JP2007334092A5 (en) 2009-06-04
JP5303824B2 JP5303824B2 (en) 2013-10-02

Family

ID=38933617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006167038A Active JP5303824B2 (en) 2006-06-16 2006-06-16 Projector and control method thereof

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JP (1) JP5303824B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5407176B2 (en) * 2008-05-09 2014-02-05 カシオ計算機株式会社 Projection system
EP2315439B1 (en) * 2008-08-22 2018-10-17 Saturn Licensing LLC Image display device, control method and computer program
US20110249035A1 (en) * 2008-12-26 2011-10-13 Sharp Kabushiki Kaisha Liquid crystal display device and television receiver
JP5495041B2 (en) * 2010-03-31 2014-05-21 カシオ計算機株式会社 projector
JP5573464B2 (en) * 2010-08-03 2014-08-20 セイコーエプソン株式会社 Projection type display device and control method thereof
JP2012063436A (en) * 2010-09-14 2012-03-29 Casio Comput Co Ltd Projection device, projection method and program
CN104011590B (en) * 2012-01-13 2016-03-16 Nec显示器解决方案株式会社 Projection type display apparatus and the method for the operation that controls projection type display apparatus
JP6252523B2 (en) * 2015-03-11 2017-12-27 カシオ計算機株式会社 Projection apparatus, projection control method, and program

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002182304A (en) * 2000-12-11 2002-06-26 Nec Viewtechnology Ltd Projector unit, method of reducing its electric powder consumption and recording medium recorded with its program
AU2003212146A1 (en) * 2002-03-13 2003-09-22 The University Of British Columbia High dynamic range display devices
JP2003330115A (en) * 2002-05-17 2003-11-19 Seiko Epson Corp Control over projector corresponding to no-input-signal state
JP2004274570A (en) * 2003-03-11 2004-09-30 Matsushita Electric Ind Co Ltd Control method of key backlight in mobile apparatus
JP2005156785A (en) * 2003-11-25 2005-06-16 Sanyo Electric Co Ltd Liquid crystal projector
JP4702048B2 (en) * 2005-12-28 2011-06-15 船井電機株式会社 Liquid crystal television receiver, liquid crystal display device, electrical apparatus, liquid crystal projector device, and liquid crystal display control method

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