Title:
An upper film for angles of visibility, a liquid crystal display, and angle-of-visibility corrective strategy
Document Type and Number:
Japanese Patent JP6110055
Kind Code:
B2
Abstract:
Provided is a film for improving a viewing angle, which can achieve both a viewing-angle-improving effect and the prevention of the reduction in a front luminance at higher levels while preventing the change in color. A film for improving a viewing angle, which is produced by melt-extrusion-molding a mixture composed of at least two resins that are immiscible with each other, and which is characterized in that the ratio of the transmittance (I30) at an output angle of 30° to the transmittance (I0) at an output angle of 0° of light having a wavelength of 440 nm in the main diffusion direction (i.e., I30/I0×100) is 0.25-5.5%.
Inventors:
Katsuro Kuze
Kawai Kenji
Akifumi Yasui
Imai Ichigen
Akira Matsuda
Yasushi Sasaki
Kawai Kenji
Akifumi Yasui
Imai Ichigen
Akira Matsuda
Yasushi Sasaki
Application Number:
JP2011181556A
Publication Date:
April 05, 2017
Filing Date:
August 23, 2011
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
G02B5/02; G02F1/13363
Domestic Patent References:
| JP2004219438A | ||||
| JP200925427A | ||||
| JP2004341309A | ||||
| JP2006106290A | ||||
| JP2007249210A | ||||
| JP200222947A | ||||
| JP2000347006A | ||||
| JP7114013A | ||||
| JP2007127932A | ||||
| JP2007264595A | ||||
| JP2006171701A | ||||
| JP2010122710A |
Attorney, Agent or Firm:
Nobuaki Kazehaya
Noriko Asano
Noriko Asano