US 12,455,403 B2
Optical laminate, article and method of manufacturing optical laminate
Tomoaki Kobayashi, Shimotsuke (JP); Zhen Huang, Shimotsuke (JP); Katsutoshi Suzuki, Tochigi (JP); Tsuguto Suzuki, Shimotsuke (JP); and Yuko Kibushi, Shimotsuke (JP)
Assigned to DEXERIALS CORPORATION, Tochigi (JP)
Appl. No. 17/905,326
Filed by DEXERIALS CORPORATION, Tochigi (JP)
PCT Filed Mar. 3, 2021, PCT No. PCT/JP2021/008174
§ 371(c)(1), (2) Date Aug. 30, 2022,
PCT Pub. No. WO2021/177350, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 2020-037146 (JP), filed on Mar. 4, 2020; application No. 2020-123316 (JP), filed on Jul. 17, 2020; application No. 2020-151806 (JP), filed on Sep. 10, 2020; and application No. 2021-032043 (JP), filed on Mar. 1, 2021.
Prior Publication US 2023/0127573 A1, Apr. 27, 2023
Int. Cl. G02B 1/18 (2015.01); C23C 14/10 (2006.01); C23C 14/34 (2006.01); C23C 16/02 (2006.01); G02B 1/11 (2015.01); G02B 1/14 (2015.01)
CPC G02B 1/18 (2015.01) [C23C 14/10 (2013.01); C23C 14/34 (2013.01); C23C 16/0245 (2013.01); C23C 16/0272 (2013.01); G02B 1/11 (2013.01); G02B 1/14 (2015.01)] 9 Claims
OG exemplary drawing
 
1. An optical laminate comprising:
a transparent substrate, an adhesion layer, an optical functional layer, and an antifouling layer laminated in this order, wherein a thickness of the transparent substrate is 25 μm or greater and 600 μm or less, wherein the antifouling layer is formed of a vapor-deposited film obtained by vapor deposition of an antifouling material, wherein a residual amount of fluorine atoms in the antifouling layer detected by XRF after 10 minutes of cleaning by irradiation with 40 KHz and 240 W ultrasonic waves in a fluorine-based solvent is 70% or more, wherein a hard coat layer is further provided between the transparent substrate and the adhesion layer, wherein the transparent substrate includes a transparent substrate film, wherein the adhesion layer includes or is made of an oxide of silicon (Si), wherein the hard coat layer includes a binder resin and a filler, wherein an optical thickness of the antifouling layer is in a range of 3 nm to 10 nm, and wherein a surface roughness Ra of the antifouling layer is in a range of 5.5 nm to 8 nm.