公开(公告)号：US11385389B2

公开(公告)日：2022-07-12

申请号：US16601672

申请日：2019-10-15

Applicant: DEXERIALS CORPORATION

Inventor： Kazuyuki Shibuya ,  Shigeshi Sakabara ,  Toshiaki Sugawara ,  Yusuke Matsuno ,  Akio Takada

IPC: G02B1/18 ,  G02B5/30 ,  G02F1/1335 ,  G02B1/14

Abstract: Provided are a polarizing plate having excellent optical properties and durability, and a method for manufacturing the polarizing plate. The polarizing plate includes: a transparent substrate transparent to light in a used wavelength band; lattice-shaped protrusions arranged on the transparent substrate at a pitch shorter than the wavelength of light in the used wavelength band, extending in a predetermined direction, and having a reflective layer, a first dielectric layer, an absorbing layer, and a second dielectric layer in this order; a dielectric portion consisting of a dielectric discontinuously formed on a surface of the lattice-shaped protrusions and a surface of a bottom floor between the lattice-shaped protrusions; and a water-repellent portion formed on a surface of the dielectric portion and having water-repellent properties.