Method of chroma compensation for pixels and microled display used in the same
AssigneeRayleigh Vision Intelligence Co. Ltd.
InventorChia-Jung LIN
Life of this patent
Estimating the term…
Abstract
A method of chroma compensation for pixels is provided. The method comprises: driving the first, second and third sub-pixels in each pixel of a micro-LED display to sequentially emit light; measuring the first, second, and third dominant wavelengths separately from the first, second and third sub-pixels of each pixel; and driving the second or third sub-pixel of each pixel to emit light with partial brightness to mix with light having the first dominant wavelength emitted from the first sub-pixel within the same pixel, wherein an adjusted first dominant wavelength presented by the color matching of mixed light is closer to a minimum value, a maximum value, or a mean value among the measured first dominant wavelengths.
Claims20
A method of chroma compensation for pixels, comprising:
- driving a first sub-pixel, a second sub-pixel, and a third sub-pixel in each pixel of a micro-LED display to sequentially emit light;
- measuring a first dominant wavelength of the first sub-pixel, a second dominant wavelength of the second sub-pixel, and a third dominant wavelength of the third sub-pixel in each pixel;
- and
- driving the second sub-pixel or the third sub-pixel in each pixel to emit light with partial brightness to mix with light emitted by the first sub-pixel at the first dominant wavelength within the same pixel, wherein the color of the mixed light corresponds to an adjusted first dominant wavelength;
- wherein the adjusted first dominant wavelength is closer to a minimum value, a maximum value, or an average value among the measured first dominant wavelengths.
A method of chroma compensation for pixels, comprising:
- driving a first sub-pixel, a second sub-pixel, and a third sub-pixel in each pixel of a micro-LED display to sequentially emit light;
- measuring a first dominant wavelength of the first sub-pixel, a second dominant wavelength of the second sub-pixel, and a third dominant wavelength of the third sub-pixel in each pixel;
- and
- driving the second sub-pixel or the third sub-pixel in each pixel to emit light at a partial luminance to mix with light emitted by the first sub-pixel at the first dominant wavelength within the same pixel;
- adjusting the first dominant wavelength by mixing the light emitted by the second sub-pixel or the third sub-pixel so that the adjusted first dominant wavelength is closer to a minimum value, a maximum value, or an average value among the measured first dominant wavelengths.
A micro light-emitting diode (micro-LED) display comprising:
- a plurality of pixels, each pixel including a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
- a storage unit configured to store a first dominant wavelength of the red sub-pixel, a second dominant wavelength of the green sub-pixel, and a third dominant wavelength of the blue sub-pixel for each pixel;
- and
- a driving circuit configured to:
- drive one of the red, green, or blue sub-pixels in each pixel to emit light with full brightness and drive another one or two of the sub-pixels to emit light with full brightness so that the color of light resulting from mixing corresponds to an adjusted dominant wavelength, and the adjusted dominant wavelengths are approximately equal.
Dependencies are inferred from the claim text.