LIQUID CRYSTAL DISPLAY DEVICE Russian patent published in 2013 - IPC G02F1/1335 

FIELD: physics.

SUBSTANCE: liquid crystal display device (100) has pixels (P) which include red, green, blue and yellow subpixels (R, G, B and Y). The colour index of the yellow subpixel (Y) lies outside a triangle which is defined by connecting corresponding colour indices of the red, green and blue subpixels (R, G and B). Areas of apertures S_R. S_G, S_B and S_Y of the red, green, blue and yellow subpixels (R, G, B and Y) and transmission coefficients T_R, T_G, T_B and T_Y of the associated red, green, blue and yellow colour filters (CR, CG, CB, and CY) satisfy the inequality: T_Y> [(S_R+S_G+S_B+S_Y) (T_R+T_G+T_B)-3 (S_R×T_R+S_G×T_G+S_B×T_B)]/3S_Y.

EFFECT: wider colour reproduction range, minimising reduction of the transmission coefficient of the layer of colour filters.

5 cl, 11 dwg