Patent ID: 6538664
Filing Date: 2003-03-25
Classification: G09G

Abstract:
A matrix display device (1) comprising a receiving circuit for receiving successive frames (2), each frame comprising a set of original line luminance values D1, . . . DM of pixels d11, . . . d1N, . . . dM1 . . . dMN, the matrix display device (1) further comprising a display panel (5) comprising a set of display lines r1 . . . rM, and a driver circuit (4) for supplying line luminance values to said display lines,characterized in that the matrix display device (1) comprises a computing unit (3) for computing new line luminance values C1âˆ’(mâˆ’1), . . . C0, . . . CM of pixels d11, . . . d1N, . . . dM1 . . . dMN on the basis of the original line luminance values D1, . . . DM as follows: mâˆ’1 line luminance values C1âˆ’(mâˆ’1), . . . C0 are initialized, for every other one of the line luminance values Cn, the line luminance value Cn is equal to m times the original line luminance value Dn for the nth line minus the sum of the line luminance value for the mâˆ’1 previous lines Cnâˆ’1 to Cnâˆ’(mâˆ’1) (Cn=mDnâˆ’&Sgr;Cnâˆ’i (i=1 . . . (mâˆ’1)), the driver circuit comprises means for supplying the line luminance values C1âˆ’(mâˆ’1), . . . C0, . . . CM to said display lines r1 . . . rM in m successive subframes, said subframes comprising a first subframe comprising line luminance values C1, Cm+1, . . . C2m+1,C3m+1 etc., a second subframe comprising line luminance values C1âˆ’(mâˆ’1),C2,Cm+2,C2m+2 etc., an m-th subframe comprising line luminance values C0,Cm,C2m,C3m etc., in each subframe addressing an m-multiplet of lines simultaneously with the same line luminance values Cn and when two successive subframes are considered, the m-multiplet of lines in the later frame being shifted p lines compared to the previous subframe, and the index of the line luminance values Cn being increased by p.