Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Liquid crystal display multiplexing

It can be safely predicted that applications of liquid crystals will expand in the future to more and more sophisticated areas of electronics. Potential applications of ferroelectric liquid crystals (e.g. fast shutters, complex multiplexed displays) are particularly exciting. The only LC that can show ferroelectric property is the chiral smectic C. Viable ferroelectric displays have however not yet materialized. Antifer-roelectric phases may also have good potential in display applications. Supertwisted nematic displays of twist artgles of around 240° and materials with low viscosity which respond relatively fast, have found considerable application. Another development is the polymer dispersed liquid crystal display in which small nematic droplets ( 2 gm in diameter) are formed in a polymer matrix. Liquid crystalline elastomers with novel physical properties would have many applications. [Pg.465]

The information rate to be displayed by liquid crystals is limited by the multiplexing capability of the liquid crystal display. Therefore electrooptic effects with a strong nonlinearity of the electrooptic characteristics and short duty cycle response for a wide range of viewing angles are required. [Pg.61]

MULTIPLEXING LIMITS OF TWISTED NEMATIC LIQUID CRYSTAL DISPLAYS AND IMPLICATIONS FOR THE FUTURE OF HIGH INFORMATION CONTENT LCDs... [Pg.79]

Alternative intrinsic threshold LCDs will enable multiplexing up to 100 lines and SxlO pixels. Extrinsic threshold technology will be required to multiplex high information content displays (10 to 10 lines, 10 to 10 pixels) with greater than SxlO pixels. We therefore conclude that high information content flat panel LCDs will not be an evolutionary product of present day FSM TN-LCDs but will require development of a revolutionary generation of liquid crystal displays based on extrinsic threshold control. [Pg.91]

H. Birecki and F. J. Kahn, Effects of Cell and Material Properties on Multiplexing Levels of Twisted Nematic Liquid Crystal Displays, This volume. [Pg.92]

Liquid crystal displays typically respond to the root-mean-square (rms) value of an applied voltage waveform. Applying this fact to the multiplexed addressing schemes which are conventionally used, Alt and Pleshko showed that the ratio of the voltages across selected and unselected display segments cannot exceed [ (y5ffl)/( 4 -l) where N is the number of rows in the matrix. We now ask whether some unconventional addressing scheme exists which would allow us to surpass this limit. [Pg.105]

Tilt angle has also an important influence on the performance of twisted nematic liquid crystal displays (TN-LCDs) because the electrooptical threshold and angular viewing uniformity decrease as the tilt angle is increased. >2 Thus it is important to be able to measure tilt accurately. Low initial tilt angles (<10 ) are of particular interest for multiplexed TN-LCDs. [Pg.115]

EFFECTS OF CELL AND MATERIAL PROPERTIES ON MULTIPLEXING LEVELS OF TWISTED NEMATIC LIQUID CRYSTAL DISPLAYS... [Pg.125]

The study reported here considers only the effects in the principal viewing plane of a transmissive liquid crystal display and neglects the effects of temperature. In this case, the multiplexing level N is determined by the merit figure... [Pg.126]

LIQUID CRYSTAL FOR MULTIPLEXED TWISTED NEMATIC DISPLAYS -ITS PHILOSOPHY AND PRACTICE... [Pg.153]

K. Toriyama, K. Suzuki, T. Nakagomi, T. Ishibashi and K. Odawara, "A Design of Liquid Crystal Material for Multiplexed Liquid Crystal Display," Journal de Physique, in press. [Pg.170]

T. J. Scheffer and J. Nehring, A new, highly multiplexable liquid crystal display, Appl. Phys. Lett., 45, 1021 (1984). [Pg.318]

The detailed analysis of TVC steepnesses p5o and pio (4.57), based on computer simulation [83], was proposed in [74] (Tables 4.1, 4.2). Let us note that a number of addressing lines N in the matrix liquid crystal displays, with a high-information content or multiplexing capability sharply increases for steep TVCs, i.e., low p values [94]. The precise dependence... [Pg.160]

Brief explanation of the geometry of the liquid crystal displays (upper row), and their addressing method by time multiplexing (lower row). [Pg.268]

Fujisawa, T., Ogawa, H., and Maruyama, K., Electro-optic properties and multiplexibility for polymer network liquid crystal displays (PN-LCD), Jpn. Displ., 690, 1989. [Pg.67]

TN Materials 2 Liquid Crystal Material for Multiplexed Liquid Crystal Display... [Pg.17]

See other pages where Liquid crystal display multiplexing is mentioned: [Pg.112]    [Pg.222]    [Pg.490]    [Pg.343]    [Pg.80]    [Pg.81]    [Pg.81]    [Pg.153]    [Pg.170]    [Pg.255]    [Pg.296]    [Pg.163]    [Pg.163]    [Pg.119]    [Pg.46]    [Pg.783]    [Pg.1528]    [Pg.274]    [Pg.17]    [Pg.21]   
See also in sourсe #XX -- [ Pg.118 , Pg.119 ]



SEARCH



Crystallization multiplexed

Liquid crystals displays

Liquid displays

Multiplex

Multiplexing

© 2024 chempedia.info