scholarly journals In-plane Switching Deformed Helix Ferroelectric Liquid Crystal Display Cells

Crystals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 543 ◽  
Author(s):  
Evgeny P. Pozhidaev ◽  
Timofey P. Tkachenko ◽  
Artemy V. Kuznetsov ◽  
Igor N. Kompanets
Keyword(s):  
Liquid Crystal ◽  
Tilt Angle ◽  
Optical Switching ◽  
Liquid Crystal Display ◽  
Ferroelectric Liquid Crystal ◽  
Natural Feature ◽  
Helix Pitch ◽  
Sub Wavelength

In-plane electro-optical switching (IPS) is a natural feature of a conventional planar-aligned display cell based on the deformed helix ferroelectric liquid crystal effect (DHFLC-effect) with a sub-wavelength helix pitch, if the tilt angle is close to 40 degrees.

scholarly journals In-Plane Switching Deformed Helix Ferroelectric Liquid Crystal Display Cells

2019 ◽  
Author(s):  
E. P. Pozhidaev ◽  
T. P. Tkachenko ◽  
A. V. Kuznetsov ◽  
I. N. Kompanets
Keyword(s):  
Liquid Crystal ◽  
Tilt Angle ◽  
Optical Switching ◽  
Liquid Crystal Display ◽  
Ferroelectric Liquid Crystal ◽  
Natural Feature ◽  
Helix Pitch ◽  
Sub Wavelength

In-plane electro-optical switching (IPS) is a natural feature of a conventional planar aligned display cell based on deformed helix ferroelectric liquid crystal effect (DHFLC-effect) with sub-wavelength helix pitch if the tilt angle close to 40 degrees.

Ferroelectric liquid crystal with sub-wavelength helix pitch as an electro-optical medium for high-speed phase spatial light modulators

2021 ◽  
Vol 135 ◽  
pp. 106711
Author(s):  
Svetlana P. Kotova ◽  
Evgeny P. Pozhidaev ◽  
Sergey A. Samagin ◽  
Vladimir V. Kesaev ◽  
Vadim A. Barbashov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Spatial Light Modulators ◽  
Ferroelectric Liquid Crystal ◽  
Optical Medium ◽  
Light Modulators ◽  
Helix Pitch ◽  
Sub Wavelength

scholarly journals ELECTRO-OPTICAL SWITCHING OF THE MAIN OPTICAL AXIS OF A FERROELECTRIC LIQUID CRYSTAL SPIRAL NANOSTRUCTUREIN A PLANAR-ORIENTED DISPLAY CELL

Doklady BGUIR ◽  
2019 ◽  
pp. 21-27
Author(s):  
E. P. Pozhidaev ◽  
T. P. Tkachenko ◽  
A. V. Kuznetsov ◽  
I. N. Kompanets
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Optical Switching ◽  
Optical Axis ◽  
Modulation Frequency ◽  
Light Transmittance ◽  
Weak Electric Field ◽  
Ferroelectric Liquid Crystal ◽  
Light Modulation ◽  
Small Pitch

In a known display cell with the nematic liquid crystal (NLC) and interdigital electrodes on one of the glass substrates, the “In-Plane Switching” (IPS) mode is implemented, in which the NLC main optical axis reorients in a plane parallel to substrates, providing the most correct color reproduction at different angles view, up to 178 ° horizontally and vertically. Unfortunately, the creation of interdigital metal electrodes complicates and increases the technological process cost and causes a decrease in image contrast. At the same time, experimental results and calculations based on classical electro-optics of crystals indicate that electrooptical switching in the IPS mode is a natural and intrinsic feature of a conventional (with continuous electrodes) display cell with a planar-oriented layer of the ferroelectric liquid crystal (FLC), in which the effect of the deformed (by the electric field) helix FLC nanostructure is realized (DHF effect). In such a cell, the reorientation of the main optical axis under the influence of a weak electric field also occurs in the substrate plane if the FLC has a small pitch (about 100 nm or less) and a large tilt angle of molecules in the layer (about 38 ° or more). The dependences of the FLC cell light transmittance measured in this work, confirmed the achievement of the IPS electro-optical mode in the DHF FLC cell; moreover, the light modulation frequency was 1 kHz. Thus, while maintaining all the advantages of the IPS mode known in NLC, its implementation in FLC allows additionally obtaining technological advantages and multiple increase in modulation frequency.

P.98: Novel Composite Photo-alignment Layer for Ferroelectric Liquid Crystal Display

2013 ◽  
Vol 44 (1) ◽  
pp. 1353-1354
Author(s):  
Qi Guo ◽  
Abhishek Srivastava ◽  
Ying Ma ◽  
Eugene Pozhidaev ◽  
Vladimir Chigrinov ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Ferroelectric Liquid Crystal ◽  
Alignment Layer ◽  
Photo Alignment
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