Multiple primary colors liquid crystal display and driving method thereof

摘要

The present invention provides a multiple primary colors liquid crystal display and a driving method thereof. The multiple primary colors liquid crystal display comprises a LED backlight source (1) and a liquid crystal display panel (3); the LED backlight source (1) comprises a plurality of red, green, blue and cyan LEDs (11, 12, 13, 14); the liquid crystal display panel (3) comprises a CF substrate (33), and the CF substrate (33) comprises a plurality of red, green and blue filters (331, 333, 335). The red, green and blue LEDs (11, 12, 13) are activated as showing the first color frame, and lights transmitting through the red, green and blue filters (331, 333, 335) respectively are red light R, green light G and blue light B; the red and cyan LEDs (11, 14) are activated as showing the second color frame, and lights transmitting through the red, green and blue filters (331, 333, 335) respectively are the red light R, a first cyan light C1 and a second cyan light C2, capable of basically and completely achieving all objects' colors of nature.

主权项

1. A multiple primary colors liquid crystal display, comprising: a LED backlight source and a liquid crystal display panel positioned on the LED backlight source; the LED backlight source comprises a plurality of red, green, blue and cyan LEDs; the liquid crystal display panel comprises a CF substrate, and the CF substrate comprises a plurality of red, green and blue filters, and each of the red, green and blue filters corresponds to a sub pixel, and transmission spectrums of the green and the blue filters comprise a wavelength range of cyan light emitted by the cyan LEDs;
the multiple primary colors liquid crystal display shows an entire image by a combination of first and second color frames; the red, green and blue LEDs are activated as showing the first color frame, and lights transmitting through the red, green and blue filters respectively are red light R, green light G and blue light B to construct a first sub frame of the entire image; the red and cyan LEDs are activated as showing the second color frame, and lights transmitting through the red, green and blue filters respectively are the red light R, a first cyan light C1 and a second cyan light C2 to construct a second sub frame of the entire image; wherein a wavelength range of the red light emitted by the red LEDs is 620-660 nm, and a peak width at half height thereof is 25-40 nm; a wavelength range of the green light emitted by the green LEDs is 520-540 nm, and a peak width at half height thereof is 20-40 nm; a wavelength range of the blue light emitted by the blue LEDs is 435-460 nm, and a peak width at half height thereof is 15-25 nm; a wavelength range of the cyan light emitted by the cyan LEDs is 490-520 nm, and a peak width at half height thereof is 20-40 nm.