Advanced polymer dispersed liquid crystal (pdlc) for display projection screens

A PDLC projection screen comprising:

• a. at least two transparent polymer supports;
• b. at least one layer of liquid crystal dispersions located between said at least two transparent metalized polymer supports;
• c. electrical components to control the behavior of said PDLC projection screen;
• wherein said PDLC projection screen have a total light transmittance Tt of about 70 to 90%, a diffusion transmittance Dt of about 0 to 10%, a clarity C of 90 to 97% and a haze value H of about 0 to 3%, measured in accordance with either ASTM D1003-13, ISO 13468-1:1996 or ISO 13468-2:1999;
• wherein said PDLC projection screen is manufactured by methods of release sheets support.

A method for manufacturing a PDLC projection screen, comprising the steps of:

• a. providing materials for producing a PDLC, LCDP, PSLC or polymer network film, comprising:
• i. at least two transparent polymer supports;
• and
• ii. at least one liquid crystal dispersion;
• b. allocating said liquid crystal dispersion between said at least two transparent polymer supports, thereby forming a PDLC, LCDP, PSLC or polymer network film;
• c. curing said PDLC, LCDP, PSLC or polymer network film by means of UV light, electron beam light or heat;
• and
• d. controlling the quality parameters of said PDLC projection screen;
• wherein said step of controlling the quality parameters of said PDLC projection screen further comprises a step of verifying that said quality parameters are equal to:
• a total light transmittance Tt of about 70 to 90%, a diffusion transmittance Dt of about 0 to 10%, a clarity C of 90 to 97% and a haze value H of about 0 to 3%, measured in accordance with either ASTM D1003-13, ISO 13468-1:1996 or ISO 13468-2:1999.

A method for manufacturing a multilayer of liquid crystal dispersion in a polymer matrix film adapted for a PDLC projection screen, comprising the steps of:

• a. providing materials for producing a PDLC, LCDP, PSLC or polymer network film, comprising:
• i. at least one first releasable supporting film;
• ii. at least one liquid crystal dispersion;
• iii. at least one second supporting film;
• b. allocating said liquid crystal dispersion between said at least one first releasable supporting film and said at least one second supporting film, thereby forming a PDLC, LCDP, PSLC or polymer network film;
• c. curing said PDLC, LCDP, PSLC or polymer network film by means of UV light, electron beam light or heat;
• d. detaching said at least one releasable supporting film;
• e. providing materials for producing at least one second layer of liquid crystal in said PDLC, LCDP, PSLC or polymer network film, comprising:
• iv. a third supporting film;
• v. a second liquid crystal dispersion;
• f. allocating said second liquid crystal dispersion between said third supporting film and said PDLC film, thereby forming a multilayer PDLC film;
• g. curing said multilayer PDLC, LCDP, PSLC or polymer network film by means of UV or electron beam light;
• and
• h. controlling the quality parameters of said PDLC projection screen;
• wherein any of said supporting films can be releasable supporting films;
• wherein said step of controlling the quality parameters of said PDLC projection screen further comprises a step of verifying that said quality parameters are equal to:
• a total light transmittance Tt of about 70 to 90%, a diffusion transmittance Dt of about 0 to 10%, a clarity C of 90 to 97% and a haze value H of about 0 to 3%, measured in accordance with either ASTM D1003-13, ISO 13468-1:1996 or ISO 13468-2:1999.

A method for presenting a projected image, comprising the steps of:

• a. acquiring the PDLC projection screen of claim 1;
• b. acquiring a projector;
• c. allocating said projector either in front or behind said PDLC projection screen;
• d. activating said projector;
• and
• e. either activating or deactivating said PDLC projection screen.