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Projector and image projection method

A projector and image technology, applied in image communication, equipment, television, etc., can solve the problems that hinder the low cost of projectors and the high cost of projectors

Inactive Publication Date: 2012-12-19
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the size of the projector is increased and an analysis circuit for capturing images is required, which leads to high cost of the projector and hinders the cost reduction of the projector.

Method used

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Embodiment Construction

[0020] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the embodiments described below do not unduly limit the content of the present invention described in the claims. In addition, not all of the configurations described below are essential components for solving the problems of the present invention.

[0021] figure 1 The outline of the configuration of the projector according to one embodiment of the present invention is shown in . figure 1 A diagram showing a projector viewed from a sideways direction.

[0022] The projector system (display system in a broad sense) 10 includes a projector (display device in a broad sense) 100 and a portable device (external device in a broad sense) 200 . The projector 100 is configured so that the portable device 200 having a tilt detection function can be connected to the projector main body at a predetermined installation angle. Specifically, projector 100 is conf...

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Abstract

The invention relates to a projector, a projector system and an image projection method with which miniaturization and low cost can be realized when correcting the shape of images. A projector used with an external device having a tilt detection function and configured so that the external device can be connected to a projector main body at a predetermined installation angle projects an image on which a correction has been performed using a first tilt angle of the external device detected by the external device and the installation angle.

Description

technical field [0001] The present invention relates to a projector, an image projection method, and the like, and more particularly, to a projector, an image projection method, and the like that perform shape correction of an image. Background technique [0002] Conventionally, projectors as display devices have been used in various situations such as company meetings and watching movies at home. Such projectors are highly installable, and depending on the projector installation state, the projected image will be trapezoidally distorted depending on the angle formed by the optical axis of projected light (projection optical axis) and the screen surface (projection surface). Therefore, in the projector, it is possible to perform keystone correction for correcting the trapezoidal distortion by image processing technology, and project the keystone-corrected image on the projection surface. [0003] Various proposals have been made for such a projector performing keystone corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G03B21/14H04N5/74
CPCH04M2250/12H04M1/0272G03B21/145H04N9/3185H04N9/3194
Inventor 藤森俊树
Owner SEIKO EPSON CORP
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