Hard-screen polarizing plate for liquid crystal screen

摘要

A hard-screen polarizing plate for a liquid crystal screen includes a polyvinyl alcohol film (1) and a protective film (2). The protective film (2) is adhered to a surface of the polyvinyl alcohol film (1) facing a light emitting surface (41) of a liquid crystal cell (4). The hard-screen polarizing plate further includes a glass substrate (3). The glass substrate (3) is adhered to a light emitting surface (12) of the polyvinyl alcohol film (1) for serving as a protective layer of the second light emitting surface (12) of the polyvinyl alcohol film (1). The hard-screen polarizing plate is adhered to a light emitting surface (41) of the liquid crystal cell (4).

主权项

1. A hard-screen polarizing plate for a liquid crystal screen, for being adhered to a light emitting surface of a liquid crystal cell, comprising a polyvinyl alcohol film and a first protective film, wherein the protective film is adhered to a surface of said polyvinyl alcohol film facing the light emitting surface of the liquid crystal cell, wherein said hard-screen polarizing plate further comprises a glass substrate which is adhered to a light emitting surface of said polyvinyl alcohol film;
wherein a second protective layer is adhered to a light emitting surface of said glass substrate; at least one coating layer selected from the group consisting of an anti-reflective evaporation film, a scratch-resistance evaporation film and an anti-static evaporation film is evaporated on a light emitting surface of said glass substrate and a light emitting surface of said second protective layer; said first protective layer and said second protective layer are cellulose triacetate membranes or polyethylene terephthalate membranes which have a high transparency; and said glass substrate is a flat glass having a thickness of 0.7-1.1 mm; said glass substrate is processed with a strengthening treatment, and a surface compressive stress value of said glass substrate is over 450 Mpa.