Brightness-enhanced multilayer optical film with low reflectivity for display and organic light emitting diode display using the same
First Claim
1. A low-reflectivity, brightness-enhancing multilayer optical film for a display comprising a transparent substrate, a light diffusion layer formed on a surface of the transparent substrate and a light-absorbing layer formed on the light diffusion layer wherein the light diffusion layer contains a resin and spherical particles, and the light-absorbing layer contains a transparent resin and core-shell structured light-absorbing particles composed of a light-absorbing agent as a material for the core and a transparent resin as a material for the shell.
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Abstract
Disclosed herein is a low-reflectivity, brightness-enhancing multilayer optical film for enhancing the brightness of an organic light emission diode (OLED) display and imparting anti-reflection performance to the display. The multilayer optical film comprises a transparent substrate, a light diffusion layer formed on the transparent substrate by wet coating and a light-absorbing layer formed on the light diffusion layer by wet coating wherein the substrate has a thickness of 10˜300 μm, the light diffusion layer contains a resin and spherical particles, and the light-absorbing layer contains 50˜500 parts by weight of core-shell structured light-absorbing particles composed of a light-absorbing agent as a material for the core and a transparent resin as a material for the shell. Further disclosed is an organic light emitting diode (OLED) display using the multilayer optical film.
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17 Claims
- 1. A low-reflectivity, brightness-enhancing multilayer optical film for a display comprising a transparent substrate, a light diffusion layer formed on a surface of the transparent substrate and a light-absorbing layer formed on the light diffusion layer wherein the light diffusion layer contains a resin and spherical particles, and the light-absorbing layer contains a transparent resin and core-shell structured light-absorbing particles composed of a light-absorbing agent as a material for the core and a transparent resin as a material for the shell.
Specification