Variable contrast, wide viewing angle LCD light-switching filter

• Main Authors: PIRS JANEZ, URANKAR BERNARDA, BAZEC MATEJ, PIRS SILVIJA, MARIN BOJAN, PONIKVAR DUSAN
• Format: Patent
• Language: English
• Published: 24.09.2013
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; FREQUENCY-CHANGING; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PHYSICS; PROSTHESES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TREATMENT OR PROTECTION OF EYES OR EARS

A new concept of the LCD light-switching optical filter allowing for very high, electrically controlled, continuously variable light attenuation (up to >=100,000) optimized/symmetrized for the light incidence along the normal to the LCD plane is proposed. The new LCD light-switching optical filte...