Fountain Field Technology for Wide Viewing Angle LCD

Fountain Field Technology for Wide Viewing Angle LCD
Due to anisotropic character of the liquid crystal optical properties, the electro-optical response of the majority of LCDs modes possess an angular viewing angle dependence. Combinations of different complementing optical elements are included in the LCD architecture for reducing such a dependence. We suggested and realised a novel electrode structure for LCDs, Perforated Electrode (PE), for generating a Fringe Field Switching (FFS), which is enabling to generate images with 360º viewing angle constant contrast. This electrode structure provides generation of local electric fields, distributed over the whole work area of the LCD, possessing azimuthally degenerate directions around the holes, which in turn induces realigning of the liquid crystal molecules according the directions of the local electric field, i.e. the field-on liquid crystal alignment will become with locally azimuthal degenerate directions. Hence, the generated images will possess azimuthally viewing angle independent contrast.

Typical Applications :
– Transmissive & reflective LCD
– Polarisers free LCD
– Photonic Devices
– Light Managing Devices

Own Technologies

Usually, polymer stabilization involves the entire bulk of liquid crystal layer detrimental to optical quality. Our patented method involves surface polymer stabilization of the liquid crystal layer adjacent to the confining substrates’ surface, which becomes invisible for the light and, thus, it does not affect the optical properties… Discover more

Novel LCD electrode structure, so called Perforated Electrode, (PE), is suggested for generating a Fringe Field Switching, enabling to generate images with 360º viewing angle constant contrast... Discover more

Conventional LCDs are electrically addressed. However, a different approach for addressing of the LCDs, such as liquid crystal light shutters, can be employed by incorporating in the LCD photo generated voltage units (PVU) so that the device can be optically and/or electrically addressed... Discover more

Partners Technologies

Besides the two standard bistable states of cholesteric liquid crystals, a third one (hidden image) also bistable, could appear as positive or negative image, depending on the applied driving voltage... Discover more

Fast switching is required in many devices, especially in those performing a real time processing. Our partner patented solutions include two novel LCD modes... Discover more

Within a long-term project with Nissan Chemistry Corporation, Japan, our partner developed a full spectrum of alignment materials for LCDs, which includes materials for Planar (PA), Vertical (VA) and Tilted (TA, 0º<θ<90º) alignment. Photo-alignment materials for PA, VA and TA were also developed in parallel... Discover more

Last updates
June / 2020

HighVisTec is proud to become a member of EPIC

HighVisTec is officially a member of the European Photonics Industry Consortium (EPIC), the industry assiociation that promotes the sustainable development of organizations working in the field […]
March / 2020

HighVisTec attending the Electronic Displays Conference 2020.

The electronic displays Conference is the most important European B2B platform for display technologies. It is the central dialog and sector platform for high-caliber expertise, presented […]
August / 2018

First customer product successfully developed

HighVisTec Successfully completed development of the first customer product (flexible liquid crystal light shutter for welding helmet). Small-scale production completed and produced shutters shipped to customer […]
June / 2017

“Design, fabrication and testing of achromatic elliptical polarizer”

Optics Express 2017, 25 (9):10355. X. Tu, L. Jiang, M. Ibn-Elhaj & S. Pau, A method of designing achromatic elliptical polarizers using a combination of multiple […]