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Image display apparatus and image adjusting method

An image display device and image technology, applied in image communication, static indicators, cathode ray tube indicators, etc., can solve the problems of being unable to adjust, laboriously adding adjustment items, and being difficult to understand

Active Publication Date: 2009-02-25
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when image adjustment is performed with conventional image display devices, it is necessary to select from a small number of predetermined options, so that flexible adjustment cannot be performed.
[0005] On the other hand, in order to enable flexible image adjustment, it is difficult to know in advance which part of the image will be changed by image adjustment, or it is difficult to know in advance how to perform the desired adjustment. What adjustment item should be selected for image adjustment

Method used

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  • Image display apparatus and image adjusting method
  • Image display apparatus and image adjusting method
  • Image display apparatus and image adjusting method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0165]

[0166] FIG. 1 is a diagram showing a mode of use of the projector according to Embodiment 1 of the present invention. The projector 100 as an image display device projects an image based on an image signal supplied from an image signal supply device 200 such as a personal computer onto a screen SC.

[0167] The projector 100 has two image adjustment functions for improving the expressiveness of the image according to the content of the image and the projection environment, and can adjust the gradation included in the image signal supplied from the image signal supply device 200 value. One of the image adjustment functions of the projector 100 is "gamma" adjustment for selecting a reference gamma characteristic as a basic gray scale characteristic from a plurality of options stored in advance, and the other is to perform characteristic adjustment on the reference gamma characteristic. The "color mode" adjustment of the desired color mode is selected from multiple op...

Embodiment approach 2

[0369]

[0370] Figure 14 It is a flowchart illustrating the operation of the projector 100 when "gamma" adjustment is performed. Figure 15 (a) is a figure which shows one form of a selection screen, Figure 15 (b) is a figure which shows one form of a branch screen.

[0371] here, with Figure 14 Centered, suitable for use Figure 15 (a), (b) and FIG. 2 describe the flow of processing up to branching screens in the second mode of image adjustment of projector 100 according to Embodiment 2. FIG. In addition, the same code|symbol is used for the same part as Embodiment 1, and overlapping description is abbreviate|omitted.

[0372] The image adjustment in the second embodiment differs from the image adjustment in the first embodiment in the flow of processing, the functions of the operation screen, and the like. For this reason, the "gradation adjustment program" that defines the order and content of image adjustment in Embodiment 2 will be in a different form from the ...

Deformed example 1

[0430] Use Fig. 2 to explain. In each of the above-mentioned embodiments, the selection of the image part in the cursor selection mode, the adjustment of the output grayscale value, etc., although the "up and down buttons" and "left and right buttons" of the operation part 1 or the remote control 2 are used, button", etc., however, it is not limited to this. For example, a trackball as a pointing device may also be provided on the remote controller 2, and a device driver corresponding to the trackball may be stored in the storage unit 14, thereby utilizing the operation of the trackball to select image parts and output grayscale values. adjustment operations, etc.

[0431] If this structure is employed, the projector 100 can efficiently perform adjustment operations.

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Abstract

Provided is an image display device capable of adjusting an image as a user likes and also confirming an image, and an image adjusting method of the image display device. A storage section 14 stores a plurality of gray scale characteristic data including custom characteristics such that characteristics themselves used for image adjustment can be customized, so a projector 100 have many choices of gray scale characteristics and choices comply with a variety of preferences of the user. Further, an image signal processing section 16 adjusts gray scale characteristics of an image signal with selected gray scale characteristics once an operation to select the gray scale characteristics in a choice picture is done, and projects an image based upon the adjusted image signal, so the projector 100 projects an image on which the adjustment contents are reflected as a background of the choice picture in the stage of selecting the adjustment contents.

Description

Technical field [0001] The present invention relates to an image display device that displays an image represented by an image signal and an image adjustment method thereof. Background technique [0002] There are known image display devices capable of adjusting an image represented by an image signal according to the content of the image, the projection environment, and the like. For example, the projector of Patent Document 1 is provided with three image adjustment options: "dynamic", "natural", and "soft", and stores γ values ​​corresponding to each adjustment item. The projector sets the γ value corresponding to the selected adjustment item, thereby performing gradation adjustment (hereinafter also referred to as "γ correction") on the image signal. [0003] [Patent document 1] Japanese Patent Application Publication No. 2005-99620 [0004] However, when performing image adjustment using a conventional image display device, it is necessary to select from a small number...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/445G09G3/20G09G3/22G09G3/28G09G3/291G09G3/30G09G3/36G09G5/00G09G5/36G09G5/38H04N5/66H04N5/74
Inventor 榊原健文望月裕二熊本修古井志纪
Owner SEIKO EPSON CORP