LIQUID-CRYSTAL DISPLAY AND SIGNAL CONVERTING CIRCUIT

Title:

LIQUID-CRYSTAL DISPLAY AND SIGNAL CONVERTING CIRCUIT

Document Type and Number:

WIPO Patent Application WO/2011/083808

Kind Code:

A1

Abstract:

Disclosed is a liquid-crystal display (100) which comprises a liquid-crystal display panel (10) having pixels each defined by a red subpixel (R), a green subpixel (G), a blue subpixel (B), and a yellow subpixel (Ye); and a driving circuit (20) that supplies display signals to the subpixels of the liquid-crystal display panel (10). When achromatic colors of at least a part of halftones of all the halftones are displayed by a pixel, white point adjustment is performed by increasing or decreasing the gradation of two subpixels including the blue subpixel (B) while the gradation of the other two subpixels including the yellow subpixel (Ye) is fixed. The above-described white-point adjusting method can be preferably used for multiple-primary-color liquid-crystal displays that display colors using four primary colors.

Inventors:

YOSHIDA YUICHI
TOMIZAWA KAZUNARI
MORI TOMOHIKO

Application Number:

PCT/JP2011/050071

Publication Date:

July 14, 2011

Filing Date:

January 06, 2011

Export Citation:

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Assignee:

SHARP KK (JP)
YOSHIDA YUICHI
TOMIZAWA KAZUNARI
MORI TOMOHIKO

International Classes:

G09G3/36; G02F1/133; G09G3/20

Domestic Patent References:

WO2007039957A1	2007-04-12
WO2008038568A1	2008-04-03
WO2009044827A1	2009-04-09
WO2009144896A1	2009-12-03

Foreign References:

JP2005303989A

2005-10-27

Other References: