Optical filters for plasma display panels using organic dyes and sputtered multilayer coatings

Abstract

Optical filters for plasma display panels (PDPs) have been studied. We obtained the sputtered seven-layer coatings (comprising alternate layers of silver and indium–tin–oxide) on substrates of polyethylene terephthalate by a roll-to-roll process. The coatings were designed in order to minimize interfacial reflectance between the coatings and the adjacent layer to it. The coatings have a surface resistance of 2.2 Ω/sq, a transmittance of 1%∼12% in the near-infrared region of 800–1200 nm, and visible-light transmittance of approximately 70%. In combination with these multilayer coatings working as shields of electromagnetic wave and near-infrared light, organic dyes were also applied to control transmission properties of the optical filters and to improve PDPs picture quality.

Preparation of Ultrathin Self-Standing Polyelectrolyte Multilayer Membranes at Physiological Conditions Using pH-Responsive Film Segments as Sacrificial Layers

“…Introduction. Thin films with well-defined architecture at the nanometer level have great potential for multifunctionalization, miniaturization, and integration of devices in a broad range of applications . Layer-by-layer deposition is a simple and green technology for fabricating multimaterial thin films with nanoscale precision by consecutive adsorptions of positively and negatively charged species from their aqueous solutions onto substrates of almost any size and shape. − Multicomposite thin films without substrates are expected to broaden further the field of applications, such as separation membranes, sensors, catalytic film, micromechanical devices, wound dressing, or even artificial organs.…”

Optical Properties of Co3O4‐Doped ZnO–B2O3–SiO2–Al2O3 Glass System for a Transparent Dielectric Layer

“…Therefore, blue luminance needs to be relatively higher than green and red luminance in order to improve the color temperature of the PDP. There have been many approaches to improve color temperature, such as optimization of the color filter, the design of the driving scheme, asymmetric pixels, and new materials including phosphor, protecting layer, dielectric layer, and the barrier rib 4–7 …”

Optical Properties of Colorants-Containing Polymethyl Methacrylate for the Front Filter of Plasma Display Panel

“…In commercial plasma display panel (PDP), a front filter has a structure of an electromagnetic interface shielding film, a color adjusting film, a near infrared blocking film, and an anti-reflection film sequentially stacked on the transparent plate [1]. Among the functional films, a color adjusting film comprises a mixture of a neon-cut dye, a color control dye, and a binder polymer and is inserted into the PDP front filter as the form of adhesive.…”