| Sonstiges: |
- Nachgewiesen in: USPTO Patent Applications
- Sprachen: English
- Document Number: 20160240123
- Publication Date: August 18, 2016
- Appl. No: 14/360698
- Application Filed: May 04, 2014
- Claim: 1. A method of obtaining luminance and chromaticity of white in the RGBW display device using RGB display device, comprising: 1) obtaining spectral values of a q grayscale of red sub-pixels, green sub-pixels and blue sub-pixels of the RGB display device; 2) obtaining spectral values of red sub-pixels, green sub-pixels and blue sub-pixels of a color filter in the RGB display device; 3) calculating a spectral value of the q grayscale of white in the RGB display device as a spectral value of the q grayscale of white sub-pixels of the RGBW display device, based on the obtained spectral values of the q grayscale of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the RGB display device and the obtained spectral values of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the color filter; 4) calculating tristimulus values WXq, WYq and WZq of the q grayscale of the white sub-pixels of the RGBW display device based on the obtained spectral value of the q grayscale of the white sub-pixels of the RGBW display device; 5) using the calculated stimulus value WYq of the q greyscale of the white sub-pixels of the RGBW display device as a luminance of the q greyscale of the white sub-pixels of the RGBW display device, and using the following formulae to calculate a chromaticity (x, y) of the q greyscale of the white sub-pixels of the RGBW display device, [mathematical expression included] wherein, q is a greyscale number.
- Claim: 2. The method of claim 1, wherein specific implementation of step 3) includes: dividing the obtained spectral values of the q greyscale of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the RGB display device by the obtained spectral values of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the color filter respectively, so as to calculate spectral values of the q grayscale of white in the RGB display device corresponding to the spectral values of the q grayscale of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the RGB display device respectively, wherein the spectral value of the q greyscale of white in the RGB display device corresponding to the spectral value of the q greyscale of the green sub-pixels of the RGB display device is used as the spectral value of the q greyscale of the white sub-pixel of the RGBW display device.
- Claim: 3. The method of claim 1, wherein in step 4), the tristimulus values WXq, WYq and WZq of the q greyscale of the white sub-pixels of the RGBW display device are calculated by using the following formulae: [mathematical expression included] wherein, k is an adjustment factor, φ(λ) is the spectral value of the q greyscale of the white sub-pixels of the RGBW display device, and x(λ), y(λ) and z(λ) are spectral tristimulus values of the standard colorimetric observer.
- Claim: 4. The method of claim 1, wherein an aperture ratio of the sub-pixels in said RGB display device is identical to an aperture ratio of the sub-pixels in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 5. The method of claim 2, wherein an aperture ratio of the sub-pixel in said RGB display device is identical to an aperture ratio of the sub-pixel in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 6. The method of claim 3, wherein an aperture ratio of the sub-pixel in said RGB display device is identical to an aperture ratio of the sub-pixel in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 7. The method of claim 1, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq and kmWZq, wherein k=(an area of a sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Claim: 8. The method of claim 2, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq, and kmWZq, wherein k=(an area of a sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Claim: 9. The method of claim 2, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq, and kmWZq, wherein k=(an area of a sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Claim: 10. A method of obtaining luminance and chromaticity of white in the RGBW display device using RGB display device, comprising: 1) obtaining an spectral value of a q grayscale of full white mode of the RGB display device; 2) obtaining spectral values of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the color filter in the RGB display device; 3) calculating an spectral value of the q grayscale of white in the RGB display device as an spectral value of the q grayscale of the white sub-pixels of the RGBW display device, based on the obtained spectral value of the q grayscale of full white mode of the RGB display device and the obtained spectral values of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the color filter; 4) calculating tristimulus values WXq, WYq and WZq of the q grayscale of the white sub-pixels of the RGBW display device based on the obtained spectral value of the q grayscale of the white sub-pixels of the RGBW display device; 5) using the calculated stimulus value WYq of the q greyscale of the white sub-pixels of the RGBW display device as a luminance of the q greyscale of the white sub-pixels of the RGBW display device, and using the following formulae to calculate a chromaticity (x, y) of the q greyscale of the white sub-pixels of the RGBW display device, [mathematical expression included] wherein q is a greyscale number.
- Claim: 11. The method of claim 6, wherein specific implementation of step 3) includes: calculating the spectral value of the q grayscale of white in the RGB display device by dividing the obtained spectral value of the q grayscale of full white mode of the RGB display device by a sum of the obtained spectral values of the red sub-pixels, the green sub-pixels and the blue sub-pixels of the color filter.
- Claim: 12. The method of claim 6, wherein in step 4), the tristimulus values WXq, WYq and WZq of the q greyscale of the white sub-pixels of the RGBW display device are calculated by using the following formulae: [mathematical expression included] wherein, k is an adjustment factor, φ(λ) is the spectral value of the q greyscale of the white sub-pixels of the RGBW display device, and x(λ), y(λ) and z(λ) are spectral tristimulus values of the standard colorimetric observer.
- Claim: 13. The method of claim 10, wherein an aperture ratio of the sub-pixel in said RGB display device is identical to an aperture ratio of the sub-pixel in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 14. The method of claim 11, wherein an aperture ratio of the sub-pixel in said RGB display device is identical to an aperture ratio of the sub-pixel in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 15. The method of claim 12, wherein an aperture ratio of the sub-pixel in said RGB display device is identical to an aperture ratio of the sub-pixel in said RGBW display device; each sub-pixels in said RGB display device are identical in sizes; each sub-pixels in said RGBW display device are identical in sizes; the size of the sub-pixel in said RGBW display device is ¾ of the size of the sub-pixel in said RGB display device.
- Claim: 16. The method of claim 10, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq and kmWZq, wherein k=(an area of an sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Claim: 17. The method of claim 11, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq, and kmWZq, wherein k=(an area of an sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Claim: 18. The method of claim 12, wherein if an aperture ratio of each sub-pixels in said RGBW display device is m times of an aperture ratio of each sub-pixels in said RGB display device, then the tristimulus values of the q greyscale of the white sub-pixels of the RGBW display device are kmWXq, kmWYq, and kmWZq, wherein k=(an area of an sub-pixel except the white sub-pixels in RGBW display device/an area of all sub-pixels in RGBW display device)/(an area of corresponding sub-pixel in RGB display device/an area of all sub-pixels in RGB display device).
- Current International Class: 09; 09
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