Shenzhen China Star Optoelectronics Technology Co., Ltd.

Jinjun Wu

Chao Ning

Chih-Tsung Kang

Weiwei Zheng

An RGB signal to RGBY signal image converting method is disclosed and includes steps of: receiving RGB input signals Ri, Gi, Bi; determining whether a color of the RGB input signals is yellow; and calculating and outputting RGBY output signals Ro, Go, Bo, Yo when the color of the RGB input signals is not yellow, wherein Yo=0, RoGoBo=RiGiBi. An image converting system using the RGB signal to RGBY signal image converting method. The image converting method and system relatively increase a signal fidelity in converting the RGB signal to the RGBY signal.

RGB signal to RGBY signal image converting system and method

A signal converting method includes: receiving RGB signals; enhancing color of a red component, a green component, and a blue component of the RGB signals to convert the RGB signals into RGBY signals; and outputting the converted RGBY signals. The signal converting method may enhance the saturation of the red component, the green component, and the blue component of the RGBY signals, such that the components of each of the colors are more vivid and more balanced.

Signal converting methods

The present invention discloses a method and a system of showing colors for a mosaic display device, in which sending the reference control signal to the first LCD to control the first pixel unit in the first LCD to show the reference colors; determining the reference three stimulus values of the reference colors; determining the calibration three stimulus values closest to the reference three stimulus values; and then sending the calibration control signal to the second LCD to control the second pixel unit in the second LCD to show the calibration colors corresponding to the calibration three stimulus values. Accordingly, the consistency calibration process of the color display for different LCDs is accomplished, and thus, to make the display result of the second LCD and the display result of the first LCD come close to the same.

Method and system of showing colors for mosaic display device

A converting system and a converting method of three-color data to four-color data are provided. The converting system includes: a first calculating part configured to calculate a saturation value and a luminance enhancement coefficient according to inputted RGB values, a second calculating part configured to calculate luminance-enhanced RGB values according to the luminance enhancement coefficient and the inputted RGB values, a white determining part configured to use a minimum value of the luminance-enhanced RGB values as an outputted W value, and a three-color determining part configured to calculate outputted RGB values according to the luminance-enhanced RGB values and the outputted W value. The invention can obtain optimal outputted W values for different inputted RGB values and maximally increase the transmittance of the display apparatus. Accordingly, the display apparatus can increase the saturation of display image while enhance the transmittance.

Converting system and converting method of three-color data to four-color data

A method and a system for enhancing colors of an image are disclosed. The method comprises: converting the color components in an RGB color space of each pixel in an image into a hue component, a saturation component, and a value component in an HSV color space of the pixel; stretching the saturation component when it is greater than 0 and smaller than 1; converting the hue component, the stretched saturation component, and the value component into an enhanced red component, an enhanced green component, and an enhanced blue component in the RGB color space. Through the method, the phenomenon of color shift can be prevented, thus enabling the image to be brighter and vivider. Hence, the viewers' visual experience can be improved. The method can relieve the problems of color shift and picture washout.

Method for enhancing colors of image and system thereof

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.

System and method for converting RGB data to WRGB data

An image color enhancement method for a display comprises the steps of: gathering tristimulus values of CIE1931 color space in light of all RGB combination of an image shown on the display, and computing a relative chrominance value and a relative luminance value; obtaining a RGB triangle of color gamut of the display according to the chrominance value; for a chromaticity point Dwhich is relative to the RGB triangle of a RGB data, defining a relative saturation is adopting a gain function to conduct gain computing for the relative saturation Sand obtaining a gain saturation S; according to a formula OD=OD*S, obtaining the gain saturation Srelative to the chrominance point Din the RGB triangle and the chrominance point Dis located in the line OD; computing the RGB data corresponding to the chrominance point Dand obtaining the RGB data after saturation enhancement. An image color enhancement device is for executing the image color enhancement method.

Image color enhancement method and device for display

A method of obtaining luminance and chromaticity of white in the RGBW display using RGB display, including; obtaining spectral values of a q grayscale of red sub-pixels, green sub-pixels and blue sub-pixels of the RGB display; obtaining spectral values of red, green and blue sub-pixels of a color filter in the RGB display; calculating a spectral value of the q greyscale of white in the RGB display as a spectral value of the q grayscale of the white sub-pixels of the RGBW display; calculating tristimulus values WX, WYand WZof the q greyscale of the white sub-pixels of the RGBW display; using the stimulus value WYas a luminance of the q greyscale of the white sub-pixels of the RGBW display, and using the formulae to calculate a chromaticity (x, y) of the white sub-pixel of the RGBW display.

Method of obtaining luminance and chromaticity of white in RGBW display device using RGB display device

The present invention provides a method for adjusting white-balance, comprising the steps of: S, entering a value of white-balance of a standard sample into a display panel; S, controlling the display panel to display a test image having different grayscale value so as to attain a full grayscale value of the display panel; S, determining whether the attained full grayscale value is within a specification, if yes, then proceeding into next step, and if no, then proceeding into step S; and S, recalculating the white-balance value based on a difference between the attained full grayscale value and the white-balance value of the standard sample, and reentering the calculated white-balance value into display panel, and returning to step S. The white balance adjusting system incorporated with such white balance adjusting method can be readily and quickly implemented into the existing production line of liquid crystal display panel.

Method and system for adjusting white balance, method for making liquid crystal display

A white balance adjustment method for a display, the method including acquiring spectrum stimulus values of q gray scales of red, green, blue and white of a display panel of a tested display; determining spectrum stimulus value brightness of white and green, and performing interpolation segmenting on brightness of white and green; normalizing brightness of white and green; acquiring an ideal brightness normalized value of white and an ideal brightness normalized value of green; comparing the normalized value for brightness white and the ideal brightness normalized value corresponding to the white and the normalized value for brightness of green and the ideal brightness normalized value corresponding to the green respectively, based on the closest principle, and determining optimal gray scales of white and green; determining a target chromaticity, and changing the gray scales of red and blue, acquiring a RGBW combination which is closest to the target chromaticity.

Growing community of inventors

Guangdong, China

Jinjun Wu