Filter for display device

Abstract

A filter 100 for a display device includes a transparent substrate 110; a near infrared ray blocking layer 120; and electromagnetic shielding layer 130; an external light blocking layer 140; and a color compensation layer 150. The near infrared ray blocking layer 120 is formed on the transparent substrate 110 and includes a metal thin film and a metal oxide thin film which are alternately layered, each of the metal thin film and the metal oxide thin film being layered one or more times. The electromagnetic shielding layer 130 is formed on the near infrared ray blocking layer 120 and includes a metal mesh pattern. The external light blocking layer 140 includes an external light blocking pattern 144, the external light blocking pattern including a plurality of external light blocking parts with a wedge shape which are filled with a light absorbing material and a conductive material. The color compensation layer 150 is formed on the external light blocking layer 140 and includes a polymer resin and at least two kinds of colorants selectively absorbing lights. The filter 100 has a transmittance of 5% or less at an 850 nm wavelength. The filter 100 has excellent performance in blocking near infrared rays and electromagnetic waves and high transmittance to visible light.

Dependencies are inferred from the claim text.