Display apparatus and display method

A technology of a display device and a display method, which is applied to static indicators, instruments, etc., can solve problems such as disharmony and deviation from the brightness sense of human brain memory, and achieve the effect of reducing the sense of dissonance

Active Publication Date: 2009-07-08
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] That is, in a display device that can display one pixel in four colors of three primary colors plus white, and inputs a color signal corresponding to the mixing ratio of the four colors for display, there is a problem that the luminance ratio of the normal color to white is large When it is different from the brightness sense of human brain memory, it makes the conventional color viewer feel disharmonious

Method used

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  • Display apparatus and display method
  • Display apparatus and display method
  • Display apparatus and display method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0068] In Embodiment 1, a display device will be described that can reduce the amount of green that sometimes appears when viewing a clear yellow (yellow with low chromaticity), that is, a light yellow video portion that is surrounded by white or adjacent to white. A sense of incongruity that there is a difference in the color of the feeling.

[0069] figure 1 The display device 12 of Embodiment 1 is shown.

[0070] The display device 12 includes a color component separation detection unit 1, a first signal level conversion processing unit 2, a second signal level conversion processing unit 3, a switching signal generation unit 4, a first selection unit 5, a second selection unit 6, a white Component detecting section 7 , white display element driving section 8 , white display section 9 , RGB display element driving section 10 , and RGB display section 11 .

[0071] The color component separation detection unit 1 is a unit that separates and detects the yellow component whe...

Embodiment approach 2

[0125] Next, Embodiment 2 will be described.

[0126] In Embodiment 1, a display device was described that reduces the chance of seeing green or the like even when clear yellow (yellow with low chroma), that is, light yellow video is surrounded by white or adjacent to white. A sense of incongruity that there is a difference in the color of the feeling. In Embodiment 2, a display device will be described that includes not only clear yellow (yellow with low chroma), that is, light yellow, but also clear magenta (magenta with low chroma), that is, light magenta, and clear cyan. (Low chroma turquoise), that is, light turquoise, even if its visual part is surrounded by white or adjacent to white, it can reduce the sense of incongruity perceived as a difference in color.

[0127] Figure 6 The configuration of the display device 41 according to Embodiment 2 is shown.

[0128] The components of the display device 41 include a color component separation detection unit 34, a switchi...

Embodiment approach 3

[0164] Next, Embodiment 3 will be described.

[0165] In Embodiment 3, a display device is described in which, as in Embodiment 1, even if a clear yellow (yellow with low chromaticity), that is, a pale yellow video part is surrounded by white or adjacent to white, the display device can be reduced. Sometimes there is a sense of incongruity that there is a difference in the perceived color such as green.

[0166] Figure 7 The display device 112 of Embodiment 3 is shown.

[0167] The display device 112 includes a color component separation detection unit 101, a first signal level conversion processing unit 102, a second signal level conversion processing unit 103, a switching signal generation unit 104, a first selection unit 105, a second selection unit 106, a white Component detecting section 107 , white display element driving section 108 , white display section 109 , RGB display element driving section 110 , and RGB display section 111 .

[0168] The color component sepa...

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PUM

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Abstract

In a display device that can display one pixel in 4 colors of 3 primary colors plus white, and input a color signal corresponding to the mixing ratio of the 4 colors for display, when the luminance ratio of the normal color to white is large, the normal color viewer Sometimes there is a sense of incongruity. A display device that can display one pixel in 4 colors of 3 primary colors plus white, and input a color signal corresponding to the mixing ratio of the 4 colors for display, wherein the color signal corresponding to the pixel has a predetermined color component. The color correction components (2, 3) of the first color correction for increasing the chroma of the color signal and the second color correction for at least reducing the chroma of the color signal; switching and selecting the first color correction obtained by time A selection part (4, 5) for one of the first color signal and the second color signal obtained by the second color correction; and a display part (7, 8, 9, 10, 11).

Description

technical field [0001] The present invention relates to a display device and a display method that can display one pixel in four colors of three primary colors plus white, and input a color signal corresponding to the mixing ratio of the four colors. Background technique [0002] As devices for color display, CRT, LCD (Liquid Crystal Display), DLP (Digital Light Processing Device), PDP, etc. are used, and RGB (red, green and blue) primary colors are used as general primary colors. In some LCD monitors and DLP projection monitors, white is added to enhance brightness. [0003] That is, a display device that can display four colors of R (red), G (green), B (blue), and W (white) with one pixel and display input RGB signals in a manner of mixing these four colors (such as With reference to Japanese Patent Publication No. 5-241511 and "White Enhancement for Color-Sequential DLP" written by A..Kunzman and G.Pettitt, SID International Symposium Digest of Technical Papers (SID Inte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
Inventor 小笠原胜一植田晃宫井宏
Owner PANASONIC CORP
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