z-logo
Premium
Combining passive‐ and active‐matrix addressing of LCDs
Author(s) -
Kuijk K. E.
Publication year - 1996
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1984983
Subject(s) - row , row and column spaces , active matrix , matrix (chemical analysis) , liquid crystal display , multiplexing , computer science , orthonormal basis , materials science , physics , telecommunications , nanotechnology , layer (electronics) , quantum mechanics , database , composite material , operating system , thin film transistor
— A combination of passive‐ and active‐matrix addressing is proposed by dividing the ITO columns of a passive‐matrix LCD in parts, thus only covering a group of rows. The ITO parts are connected to metal columns via TFTs. This leads to a significantly smaller number of TFTs, as compared to an active‐matrix LCD. The proposed system may either be driven as a switched passive matrix (SPM) with a low multiplexing factor, or as a multiplexed active matrix (MAM) by holding the voltages. The number of row connections may be decreased by connecting the corresponding ITO rows of a number of groups. Both row‐at‐a‐time addressing and multiple‐row selection with orthonormal waveforms may be used for both driving methods.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here