Low voltage and high optical quality polymer dispersed FLC films

Pozhidaev, E. P.; Smorgon, S. L.; Andreev, A. L.; Kompanets, I. N.; Zyryanov, V. Ya.; Kompanets, S. I.

doi:10.1080/00150199808217361

Cited by 9 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An assumption is made that the local LC director is spatially uniform and has a planar orientation inside each droplet. In general, the director configuration may not be so simple, especially close to the surface [35,36]. It is possible to imagine, on the basis of the results considered below, the influence of this factor on the disorientation of the droplet axis.…”

Section: The Conditions For Coherent Transmission Quenching For Sflc ...mentioning

confidence: 99%

See 1 more Smart Citation

Interference effect of coherent transmittance quenching: theoretical study of optical modulation by surface ferroelectric liquid crystal droplets

Loiko

Konkolovich

2000

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Within the framework of the single scattering and the anomalous diffraction approach, the conditions for coherent transmittance quenching for surface ferroelectric liquid crystal (SFLC) droplets have been found. The influence of the droplet polydispersity and the disorientation of their optical axes for the SFLC film for the conditions under which the film coherent transmittance becomes zero is analysed. The contrast ratio and the modulation depth of the SFLC film under the conditions of coherent transmission quenching have been studied. The possibility of a dramatic increase in the contrast ratio at fields of view of a few degrees is shown. Analysis of the contrast ratio and modulation depth of the SFLC film under the conditions of coherent component quenching and at a departure from these conditions has been performed.

show abstract

Section: The Conditions For Coherent Transmission Quenching For Sflc ...mentioning

confidence: 99%

“…Note that conditions (ii) and (iii) can be changed for equality n e = n p and the droplet size c m satisfying equation (36) where instead of n e , n o will appear and ν m will be found from (37), since in this case also Im f V V (0) = 0.…”

Section: The Conditions For Coherent Transmission Quenching For Sflc ...mentioning

confidence: 99%

Interference effect of coherent transmittance quenching: theoretical study of optical modulation by surface ferroelectric liquid crystal droplets

Loiko

Konkolovich

2000

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…10,11) The memorized gray scale of passively addressed FLCDs can be obtained, if the FLC possesses a high spontaneous polarization, P s > 50 nC/cm 2 , when ferroelectric domains exist, being a possible origin of the gray scale. 12,13) Generally, any type of spatial nonuniformity in a helix free FLC, which arises because of a high P s , can be considered principally as a physical origin of the gray scale. [14][15][16][17] However, a depolarizing field appears in FLC cells with high P s values, suppressing bistability, if aligning layers are thick enough.…”

Section: Introductionmentioning

confidence: 99%

Photoaligned Ferroelectric Liquid Crystal Passive Matrix Display with Memorized Gray Scale

Pozhidaev

Chigrinov

2006

jjap

View full text Add to dashboard Cite

A new concept of a passive matrix ferroelectric liquid crystal display (FLCD) with a memorized gray scale is proposed. The physical origin of the gray scale in ferroelectric liquid crystal displays is considered. The criterion of reliable bistability is derived depending on the FLC hysteretic behavior in an electric field. The frequency and temperature dependences of the FLC hysteretic loop are discussed. A new approach for multiplex electronic addressing of the FLCD gray scale is given. A passively addressed 64×64 FLCD based on the photoalignment technique is developed. New applications of passively addressed FLCDs with a memorized gray scale are envisaged.

show abstract

“…An analogous approach has been demonstrated in FLC microdisplays for alternative applications [11]. Short pitch FLC's as well have shown promise in a polymer dispersed configuration, denoted polymer dispersed ferroelectric liquid crystals (PDFLC's) [12,13]. The permanent dipole of the FLC material in the PDFLC helps overcome slow switching times inherent in more conventional polymer dispersed liquid crystal devices.…”

Section: Introductionmentioning

confidence: 99%

P-127: Vertically Aligned Deformed Helix Ferroelectric Liquid Crystal Configuration for Reflective Display Device

McMurdy

Eakin

Crawford

2006

SID Symposium Digest

View full text Add to dashboard Cite

We discuss a configuration using vertically aligned deformed helix ferroelectric liquid crystals to create a tunable single panel full‐color reflective display without need for color filters or stacked panels. The narrow bandwidth of reflection coupled with the polarization insensitivity and fast response times enable strong and high purity reflection spectra. Thermal tunability is disclosed here to demonstrate potential performance of this device, followed by preliminary results of continuous in‐plane electrode tuning. The pitch deformation scaling with applied field coupled with the fast response times inherent for ferroelectrics with spontaneous polarization make this device an ideal candidate for low‐power reflective displays.

show abstract

Low voltage and high optical quality polymer dispersed FLC films

Cited by 9 publications

References 3 publications

Interference effect of coherent transmittance quenching: theoretical study of optical modulation by surface ferroelectric liquid crystal droplets

Interference effect of coherent transmittance quenching: theoretical study of optical modulation by surface ferroelectric liquid crystal droplets

Photoaligned Ferroelectric Liquid Crystal Passive Matrix Display with Memorized Gray Scale

P-127: Vertically Aligned Deformed Helix Ferroelectric Liquid Crystal Configuration for Reflective Display Device

Contact Info

Product

Resources

About