System and method for converting RGB data to WRGB data

Patent metadata

Field	Value
Publication number	US-9589534-B2
Application number	US-201414426982-A
Country	US
Kind code	B2
Filing date	Nov 12, 2014
Priority date	Nov 4, 2014
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

The present invention discloses a system for converting RGB data to WRGB data, which includes: a color enhancement assembly, which is configured to conduct color enhancement for input RGB values in order to obtain color-enhanced RGB values; and a four color conversion assembly, which is configured for converting the color-enhanced RGB values into output WRGB values. The present invention also discloses a method for converting RGB data to WRGB data. The system and method for converting RGB data to WRGB data according to the present invention allows for improvement of transmittance of a display device while at the same time increasing saturation of a display image and providing an effect of color enhancement.

First claim

What is claimed is:

1. A display device comprising a display panel, a scan driver, a data driver, and an RGB (Red, Green, Blue) data to WRGB (White, Red, Green, Blue) data conversion system, and also comprising scan lines connected to the scan driver and data lines connected to the data driver, the scan lines and the data lines being interconnected to define red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels that respectively and collectively constitute pixels, the RGB data to WRGB data conversion system being configured to receive input RGB values and comprising:
a color enhancement assembly, which is configured to receive the input RGB values and conduct color enhancement for the input RGB values in order to obtain color-enhanced RGB values; and
a four color conversion assembly, which is configured for receiving and converting the color-enhanced RGB values into output WRGB values that are fed to the data driver to be supplied from the data driver to the display panel for displaying;
wherein the color enhancement assembly comprises:
an HSV (Hue, Saturation, Value) conversion component, which is configured for converting the input RGB values to an HSV color space;
a sine processing component, which is configured for conducting sine processing for saturation of the HSV color space; and
an HSV inverse conversion component, which is configured for converting hue of the HSV color space, brightness of the HSV color space, and the sine-processed saturation of the HSV color space into the color-enhanced RGB values; and
wherein the HSV conversion component is further configured to use Equation 1 to convert the input RGB values to the HSV color space,

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Assignees

• Shenzhen China Star Optoelect
• Shenzhen China Star Optoelect

Inventors

• Wu Jinjun

Classifications

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title

• G09G2340/06

  Colour space transformation · CPC title

• G09G2320/0242

  Compensation of deficiencies in the appearance of colours · CPC title

• G09G5/02 Primary

  characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} · CPC title

• G09G5/026

  Control of mixing and/or overlay of colours in general (G09G5/022 and G09G5/024 take precedence) · CPC title