Nanoparticle free polymer blends for light scattering films in liquid crystal displays

Abstract

This paper reports an approach using nanoparticle free polymer blends for light scattering films in liquid crystal displays. The ability to create the regularly structured circle of approximately 200 nm diameter in the light scattering film by blending two specified polymers with carboxylic acid groups and epoxy groups was demonstrated. The developed light scattering film based on thermosetting system indicated regularly structured nanomorphology, high light scattering rates of more than 3.9% at 300–600 nm of wavelength, and fast thermal cross-linking reaction at 150 °C and 60 s in thermosetting conditions for high productivity.

Light‐diffusing materials for LED illumination applications: Comparing the effectiveness of two typical light‐diffusing agents

“…According to Fresnel's law, for a beam of vertically incident light, reflectance R, which is the ratio of reflected light to incident light, and transmittance T can be expressed using eqs. (7) and (8), respectively: R5 n 1 2n 2 n 1 1n 2 2 (7)…”

“…High haze combined with high transmittance can be attained by reducing backward scattering and strengthening forward scattering. To achieve this objective, researchers have used many approaches, including roller embossing, the deposition of micrometer dots onto a polymer film surface, and a hybrid extrusion roller embossing process, to prepare LDMs. A diffusing film with excellent diffusing properties can be prepared using these methods; however, the technical conditions are difficult and the methods are only appropriate for the fabrication of flat plates.…”

Effective increase in the refractive index of novel transparent silicone hybrid films by introduction of functionalized silicon nanoparticles

“…[1][2][3][4][5][6] With the increasing demands for high performance in these applications, enhanced refractive index materials are strongly desired. [1][2][3][4][5][6] With the increasing demands for high performance in these applications, enhanced refractive index materials are strongly desired.…”

Nanomorphology of Polymer Blends for a Light-Scattering Thermosetting Plate Based on Self-Assembly

“…Conversely, traditional thermosetting materials such as negative photoresist, paint, ink, and optical plates consist of polymer binders, cross‐linker, catalyst, and additives that are either attached or blended with the polymer. However, it is difficult to achieve greater reduction using the current thermal cross‐linking materials, e.g., cross‐linker, catalyst, and additives, because of their low molecular weights compared with those of the polymer binders in the bake process …”