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Projector control

A technology for projectors and projections, which is applied to parts of color TVs, parts of TV systems, TVs, etc. It can solve problems such as the adjustment of difficult image quality uniformity, and achieve the effect of effective image quality adjustment

Inactive Publication Date: 2007-12-26
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the technique described in the above-mentioned patent document, the variation in the image quality of each projected image among a plurality of projectors is not taken into account, so it is difficult to uniformly adjust the image quality of each projected image.

Method used

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example 2

[0161] In the above embodiment, the control data is set based on the cumulative use time of the liquid crystal panel 32, the temperature of the liquid crystal panel 32, and the cumulative use time of the light source lamp 52, but it is not limited to this. The deterioration of the liquid crystal panel 32 and the light source lamp 52 over time is affected by their usage conditions. Therefore, if the use history is further considered to implement the control data setting, the accuracy of the image quality adjustment of the projected image can be improved. The above use history includes how high the temperature of the liquid crystal panel 32 has been used for several hours, and the light source The lamp 52 has been used for several hours with the lamp power.

[0162] C3. Deformation example 3:

[0163] In the second embodiment described above, it is assumed that the setting of the control data is performed so that the image quality of the projection image of each projector 100 become...

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Abstract

The object of this invention is to automatically adjust the image quality of a projection image according to deterioration with lapse of time and secular change in performance of components of a projector. In an image projection system 1000, each projector 100 detects the accumulated use time of a light source lamp that the projector is equipped with and the use time and temperature of a liquid crystal panel and sends the detection results to a controller 200. Those parameter values have an effect on the image quality of a projection image and vary with time. The controller 200 sets prescribed control data to be used for image quality adjustments corresponding to respective projectors 100 based upon the detection results received from the respective projectors 100 and sends the control data to the respective corresponding projectors 100. Each projector 100 controls driving of a light source lamp and a liquid crystal panel based upon the control data received from the controller 200.

Description

Technical field [0001] The present invention relates to a technology for controlling a projector, and specifically to a technology for automatically adjusting the image quality of an image projected by the projector. Background technique [0002] In the past, projectors that magnified and projected images on a screen were popularized. In this projector, the performance of its constituent parts deteriorates over time (over time) and changes over time due to illumination optical systems such as light source lamps and display devices such as liquid crystal panels, resulting in brightness, contrast ratio, and Deterioration of image quality such as color balance. Therefore, the following technology is proposed that automatically adjusts the image quality of the projected image (hereinafter referred to as the projected image) in response to the deterioration and changes with time in the performance of the components of the projector Various technologies (for example, refer to Patent Do...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/74G09G3/36G02F1/13G02F1/133G03B21/00G03B21/26G09G3/20G09G3/34
CPCG03B21/26
Inventor 野沟朋弘宫坂明
Owner SEIKO EPSON CORP
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