| 主权项 |
1. A double layer liquid crystal (LC) Fabry-Perot (FP) filter display device, comprising:
a backlight module and a double layer LC FP filter module arranged above the backlight module, the backlight module provides white transmission light with continuous spectrum for the double layer LC FP filter module, the double layer LC FP filter module comprises an up-layer LC FP filter module and a down-layer LC FP filter module, the up-layer LC FP filter module comprises a plurality of up-layer LC FP filter units, the down-layer LC FP filter module comprises a plurality of down-layer LC FP filter units, the double layer LC FP filter module comprises a plurality of main pixels arranged in a matrix, each of the main pixels comprises two sub-pixels, each of the sub-pixels comprises one up-layer LC FP filter units and one down-layer LC FP filter units stacked together, the two sub-pixels of the main pixels are independently driven by a driving circuit to obtain the transmission light having two chromaticity when continuous spectrum emitted from the backlight module passes through the two sub-pixels; and wherein the up-layer LC FP filter module comprises a first LC layer, the down-layer LC FP filter module comprises a second LC layer, a pretilt direction of liquid crystals in the first LC layer is opposite to the pretilt direction of the liquid crystals in the second LC layer; a peak wavelength and a transmission rate of the main pixels are modulated by mixing the transmission lines with various combinations of the two chromaticity in response to the driving circuit, such that a polarizer and a color filter are not required. |
