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Projector and method for controlling projector

A control method and a technology of a projector, which are applied in the direction of using a projection device image reproducer, instrument, picture duplicator, etc., can solve problems such as spending a lot of time

Inactive Publication Date: 2014-07-02
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Theoretically, in order to save power, it is sufficient to turn off (zero) the power supply to the discharge tube. However, once the power supply to the discharge tube is turned off, there is a problem in order to restore the discharge tube when the projector is restarted. Light output takes a lot of time for such a subject

Method used

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  • Projector and method for controlling projector
  • Projector and method for controlling projector
  • Projector and method for controlling projector

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0030] figure 1 It is a block diagram showing the overall configuration of the projector 1 according to the embodiment. The projector 1 is connected to an external image supply device (not shown) such as a personal computer or various video players, and projects input image data S1 input from the image supply device on a projection surface such as a screen SC. Examples of the aforementioned image supply device include video playback devices, DVD playback devices, TV tuner devices, CATV set-top boxes, video output devices such as video game devices, personal computers, and the like. In this embodiment, a case where digital image data of a moving image is input to the image processing unit 15 as input image data S1 from an image supply device will be described as an example. The digital image data includes the image data itself and information related to the format of t...

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Abstract

The invention provides a projector with a discharge tube capable of effectively saving electricity and a method for controlling the projector. The projector including the discharge tube as a light source includes a light source driver that supplies the discharge tube with electric power and an electric power control portion that controls the level of the electric power with which the light source driver supplies the discharge tube to perform a normal mode in which the light source driver supplies electric power of a predetermined electric power level and a power saving mode in which the light source driver supplies electric power of a power saving level lower than the predetermined electric power level. The power saving mode is a mode in which light emission from the discharge tube can be maintained.

Description

technical field [0001] The invention relates to a projector and a control method of the projector. Background technique [0002] Conventionally, a projector using a discharge tube such as a high-pressure mercury lamp as a light source of the projector is known. In such a projector, there is known a technique of reducing power supplied to a discharge tube to save power (for example, refer to Patent Document 1). For example, the projector described in Patent Document 1 suppresses power consumption during projection without impairing image quality by reducing the power supplied to the discharge tube based on peripheral luminous intensity or the like. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2012-108216 [0004] Theoretically, in order to save power, it is sufficient to turn off (zero) the power supply to the discharge tube. However, once the power supply to the discharge tube is turned off, there is a problem in order to restore the discharge tube when the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/74H04N9/31
CPCG03B21/2053G03B21/00G03B21/2026G06F1/3203H04N9/3155H05B41/288
Inventor 小泽孝明榊原健文前田和典
Owner SEIKO EPSON CORP
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