US 11,698,548 B2
Liquid crystal display apparatus comprising a light scattering film having a functional layer containing light scattering particles
Yukio Yoshida, Sakai (JP); Atsuko Maeda, Sakai (JP); Nobuaki Ikenaka, Sakai (JP); Katsumi Kondo, Sakai (JP); Toshihiro Yamashita, Sakai (JP); Hideki Nakagawa, Sakai (JP); Sumire Hombo, Sakai (JP); Mitsuhiro Takeba, Sakai (JP); and Shintaro Yamada, Sakai (JP)
Assigned to SAKAI DISPLAY PRODUCTS CORPORATION, Sakai (JP)
Appl. No. 17/599,489
Filed by SAKAI DISPLAY PRODUCTS CORPORATION, Sakai (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/014378
§ 371(c)(1), (2) Date Feb. 11, 2022,
PCT Pub. No. WO2020/196897, PCT Pub. Date Oct. 1, 2020.
Prior Publication US 2022/0197083 A1, Jun. 23, 2022
Int. Cl. G02F 1/1335 (2006.01); G02B 5/30 (2006.01)
CPC G02F 1/133504 (2013.01) [G02B 5/305 (2013.01); G02F 1/133531 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A liquid crystal display apparatus, comprising:
a light-condensing backlight unit;
a liquid crystal panel including a first linear polarizer on which light from the backlight unit is incident and a second linear polarizer from which the light is output;
a light scattering film facing the second linear polarizer; and
a third linear polarizer facing the light scattering film,
wherein the light scattering film includes a functional layer including an organic polymer compound and light scattering particles contained in the organic polymer compound,
wherein the third linear polarizer has an axis of polarization extending in the same direction as an axis of polarization of the second linear polarizer,
wherein the functional layer includes a particle layer in which a fraction of 60% by volume to 100% by volume of the light scattering particles included in the functional layer expands along a surface of the particle layer at which the light output from the liquid crystal panel is received, and
wherein the particle layer is concentrated to a region having a thickness of 1 to 80% of a total thickness of the functional layer.