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Image display device, driving method of image display device, image display program, and gradation conversion device

An image display device and a technology of grayscale transformation, applied to static indicators, instruments, etc., can solve the problems of incompatibility of high resolution and achieve the effect of reducing granular structure noise

Inactive Publication Date: 2012-05-30
JAPAN DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the ordered dithering method using a concentrated dithering matrix, high resolution is not easily compatible with high grayscale characteristics

Method used

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  • Image display device, driving method of image display device, image display program, and gradation conversion device
  • Image display device, driving method of image display device, image display program, and gradation conversion device
  • Image display device, driving method of image display device, image display program, and gradation conversion device

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no. 2 example

[0051] 4. The third embodiment

no. 4 example

[0053] 6. Fifth Embodiment (Others)

[0054] [General Description of Image Display Device, Driving Method of Image Display Device, Image Display Program, and Gray Scale Conversion Device]

[0055] In the image display device according to the embodiment of the present disclosure, the image display device used for the driving method of the image display device according to the embodiment of the present disclosure, or the image display device in which the image display program of the embodiment of the present disclosure is executed (hereinafter, also In this is simply referred to as an image display device according to an embodiment of the present disclosure), there is no particular limitation on the configuration or method of a display unit that displays an image. The display unit may be a display unit suitable for displaying moving images, or a display unit suitable for displaying still images. For example, a known display device such as a liquid crystal display panel, an elec...

no. 3 example

[0161] The third embodiment is a modification of the second embodiment. The third embodiment differs from the second embodiment in that a dither matrix shifted under different conditions is applied to each sub-pixel.

[0162] Figure 19 is a conceptual diagram of an image display device according to a third embodiment.

[0163] The image display device 3 according to the third embodiment also includes: a display unit 210 that displays an image through pixels 212 arranged in a two-dimensional matrix pattern; and a gradation conversion unit 320 that performs gradation conversion using a distributed dither matrix. Similar to the first embodiment, the gradation transformation unit 320 applies a dither matrix randomly shifted in the horizontal and vertical directions to each area of ​​the pixel 212 corresponding to the dither matrix, and performs gradation transformation of the image of the display unit 210 .

[0164]Since the configuration of the display unit 210 is the same as ...

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Abstract

There is provided an image display device including a display unit that displays an image by pixels that are arranged in a two-dimensional matrix pattern; and a gradation conversion unit that performs gradation conversion using a dither matrix of diffusion type, wherein the gradation conversion unit applies a dither matrix that is randomly shifted in a horizontal direction and a vertical direction and performs gradation conversion of an image that is displayed on a display unit to each region of pixels that corresponds to the dither matrix.

Description

technical field [0001] The present disclosure relates to an image display device that displays an image on a display unit such as a liquid crystal display panel. in addition. The present disclosure also relates to a driving method of an image display device, an image display program, and a gradation conversion device. Background technique [0002] On display units of mobile electronic devices such as mobile phones or mobile information terminals, personal computers, or televisions, liquid crystal display panels for monochrome display or color display, electroluminescence using inorganic materials or organic materials are used. Electroluminescent display panels, plasma display panels, etc. [0003] In the case where the pixel gradation display capability of the display unit is low, in other words, when the pixel gradation is small, contour lines (contour) appear in the gradation part of the image, and the image quality deteriorates. In this case, image quality is generally...

Claims

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Application Information

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IPC IPC(8): G09G3/20
CPCG09G3/2003G09G2300/0452G09G3/2055G09G2320/0233G09G2340/0428G09G3/3611
Inventor 原田勉高崎直之津崎亮一东周
Owner JAPAN DISPLAY INC
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