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Projection Type Display Device And Control Method Thereof

A display device and a display control technology, applied to projection devices, TVs, color TVs, etc., can solve the problems of longer operation time, complicated operation, and more operations

Inactive Publication Date: 2014-09-24
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, for all these configurations, the number of user operations is large, and the operations required to change the projection range are complicated.
[0008] Moreover, in the structure of Patent Document 1, it is necessary to display the operation screen, so the user cannot continue to enjoy the image.
[0009] In addition, in the structure in which the target area is operated by using the arrow keys, although there is an advantage that the user can change the desired area to the projection area, the number of operations increases accordingly, and various key operations such as up, down, left, and right are required. operation becomes complicated
In addition, sometimes it is difficult for users who are not used to remote control operations to move the target area to the center position of zoom-in or zoom-out, resulting in an increase in the number of operations and a long time required for the operation
[0010] Therefore, it is difficult to easily and quickly change to the desired projection range while continuing to enjoy the image in the existing structure.

Method used

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  • Projection Type Display Device And Control Method Thereof
  • Projection Type Display Device And Control Method Thereof
  • Projection Type Display Device And Control Method Thereof

Examples

Experimental program
Comparison scheme
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no. 1 Embodiment approach

[0059] figure 1 is a diagram showing a projector (projection display device) 10 according to the first embodiment of the present invention, figure 2 is a block diagram showing the functional configuration of the projector 10 .

[0060] Such as figure 1 As shown, this projector 10 is a device that projects image light expressing an image to display an image (projected image) G0 on a screen SC as a projection surface. A remote controller (hereinafter, referred to as a remote controller) 13 for operating the projector 10 is provided.

[0061] In addition, in figure 1 For convenience of explanation, as the projected image G0, three images (the first graph image G1, the second graph image G2, and the photo image G3) are shown in the upper right, lower right, and upper left images. This image is a typical example for presentations such as product descriptions.

[0062] Such as figure 2 As shown, an image projection unit 21 constituting an optical system and an image processi...

no. 2 Embodiment approach

[0113] In the second embodiment, a configuration for realizing the same electronic zoom as in the first embodiment is described in a projector having an electronic blackboard function. Figure 9 is a diagram showing a projector (projection display device) 16 according to a second embodiment of the present invention, Figure 10 is a block diagram showing the functional configuration of the projector 16 .

[0114] Such as Figure 9 As shown, the projector 16 in this embodiment is a device that projects image light expressing an image to display an image (projected image) G0 on a screen SC as a projection surface, and includes a device main body 17 that accommodates main components and an electronic pen 18. . In addition, the projector 16 recognizes the position on the projection image G0 by recognizing the pen tip of the electronic pen 18 , draws on the projection image G0 according to the position, and performs projection. exist Figure 9 In the example shown in FIG. 2 , a ...

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PUM

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Abstract

In at least one embodiment, a projection display device comprises an image projection section, an imaging section, a location specifying section, and a display control section. The image projection section is configured to project an image toward a projection surface. The imaging section is configured to capture an image of the projection surface. The location specifying section is configured to specify a location of a position indication light emitted from an electronic pen which is operated on the projection surface based on an image captured by the imaging section. The display control section is configured to set a projection range of the image based on the location specified by the location specifying section, and to alter the projection range of the image in accordance with the set projection range.

Description

[0001] This application is a divisional application of an invention patent application with an application date of October 27, 2011, an application number of 201110332559.0, and an invention title of "projection display device and its control method". technical field [0002] The present invention relates to a projection display device capable of changing the size of a projected image and a control method thereof. Background technique [0003] Among projection display devices (projectors), some projection display devices have a function (so-called electronic zoom function) that uses image processing to change the projection range without using a lens, so that the image projected on the projection surface is enlarged or zoomed in. zoom out. [0004] For a projection type display device having such an electronic zoom function, the following scheme has been proposed: an operation screen (OSD image (On-Screen Display: On-Screen Display) is displayed, and the user operates keys i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G03B17/54G03B21/14H04N5/74G03B30/00G06F3/048G06F3/0484
CPCG06F3/017G06F3/0304G06F3/03542G06F3/04817G03B21/14H04N9/3185G06F3/04842G03B21/006G06F3/04845G06F2203/04806G06F3/0386
Inventor 小泽孝明
Owner SEIKO EPSON CORP