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Image display device

An image display device and image technology, applied in static indicators, instruments, etc., can solve problems such as inability to superimpose brightness well, false contour visual interference, etc.

Inactive Publication Date: 2010-10-20
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known that, on the basis of the above principles, during the observation of moving images, brightness cannot be superimposed well for grayscale reproduction, resulting in annual ring-shaped visual disturbances called false contours of moving images

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0064] 1. First embodiment (method of reducing color breakage driven by subsection of light sources using Wcom)

[0065] 2. Second embodiment (method of reducing color breakage driven by subsections of light sources using Yecom)

[0066] Modification 1 (example of case where subsection driving of light source is not performed only in blue display)

no. 3 example

[0067] 3. The third embodiment (method of reducing color breakage by using Wcom's brightness balance and sub-part drive)

[0068] Variant 2 (by using Yecom's brightness balancing and subpart-driven approach to reduce color breakage)

[0069] Variant 3 (by using Mgcom's luminance balancing and subsection-driven approach to reduce color breakage)

[0070] Modification 4 (Example of Method of Determining Color Components Arranged at Field Center)

[0071] Modification 5 (Example of method of reducing the number of fields within a frame period)

[0072] Modification 6 (Example of Display Method in Case of Performing Visibility Correction)

[0073] [1. First embodiment]

[0074] [Overall Configuration of Image Display Device 5]

[0075] figure 1 A configuration example of the image display device 5 according to the first embodiment is shown. This image display device has a display control section 4 to which RGB picture signals (raw signals Rorg, Gorg, and Borg) representing a...

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PUM

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Abstract

The image display device includes a light source section having light emitting subsections; a display panel; and a display control section performing a control. An input frame image is decomposed into a plurality of field images and the field images are displayed in a field sequential manner. A differential image for each of the three primary-color components is obtained by subtracting a common luminance portion from the subsection-drive frame image. The differential image and a common image configured of the common luminance portion are sequentially outputted to the display panel in a time-divisional manner. In the first field period for outputting the differential image of a primary color component, corresponding primary color light is emitted, and in a second field period for outputting the common image, multiple kinds of primary color light, corresponding to the primary-color components configuring the common luminance portion, are emitted together.

Description

technical field [0001] The present invention relates to an image display device for performing color image display by a field sequential method. Background technique [0002] Color image display methods are roughly classified into two methods according to additive color mixing methods. The first method relies on additive color mixing based on the principle of spatial color mixing. More specifically, the respective sub-pixels of the three primary colors of light R (red), G (green), and B (blue) are finely arranged in a plane so that the respective color lights cannot be distinguished with the spatial resolution of the human eye, whereby these Colors are mixed in one screen to obtain a color image. The first method is applied to most of the currently commercialized display types, such as cathode ray tube type, PDP (plasma display) type and liquid crystal type. When the first method is used to construct a display device of the type that modulates light from a light source (b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G3/3426G09G2310/0235G09G2360/16G09G2320/0242G09G2320/0646G09G2360/144G09G3/3413
Inventor 古川德昌浅野光康
Owner SONY CORP