Abstract: An optical filter provided in front of a display panel of a display device includes a background layer and a color shift-reducing pattern formed to a predetermined thickness at the background layer. The color shift-reducing pattern has a plurality of partial areas, and at least two partial areas of the plurality of partial areas have different light absorptivities and/or light diffusivities. The at least two partial areas may contain different amounts of a light-absorbing material that cause the different light-absorptivities and/or different amounts of a light-diffusing material that cause the different light diffusivities. The color shift-reducing pattern may have first and second partial areas, in which only the first partial area may contain the light-absorbing material, and only the second partial area may contain the light-diffusing material. The light-absorbing material may include a green wavelength-absorbing material that absorbs light having green wavelengths from 510 nm to 560 nm.

Abstract: An optical filter for compensating for color shift is provided in front of a display panel of a display device. The optical filter includes a background layer and a green wavelength absorption pattern provided with a predetermined thickness on the background layer. The green wavelength absorption pattern absorbs a green wavelength of light. The green wavelength absorption pattern contains a material that absorbs a green wavelength of light in the range of 510 nm to 560 nm, and can also contain a white light absorbing material. A green's complementary color absorbing part absorbs a wavelength of light complementary to green, and contains at least one of a material absorbing a blue wavelength of light in the range of 440 nm to 480 nm and a material absorbing a red wavelength of light in the range of 600 nm to 650 nm. A first thick-film layer, a first thin-film layer, and a second thick-film layer are stacked over one another in the order named.

Abstract: An optical film for a display apparatus using electrophoresis includes a transparent base having partition walls dividing the transparent base into cells, an electrophoresis dispersion which fills the cells and contains a dielectric medium and charged pigment particles dispersed throughout the dielectric medium, a front electrode provided in front of the cell, first and second in-plane electrodes provided behind the cell, and a rear electrode provided behind the cell in such a manner that the rear electrode is disposed between the first and second in-plane electrodes.

Abstract: An external light blocking film includes a base transmitting external light, and an external light blocking pattern which blocks the external light and is formed at the base. A refraction index of the base is larger than a refraction index of air by more than 0 and not more than 0.56. The base satisfies the following equation: 0°<(?1??2)?35°, where ?1 is an incident angle at which the external light is incident onto the base, and ?2 is an refraction angle at which the external light refracts due to a difference between the refraction index of the base and the refraction index of air.

Abstract: Disclosed are a color compensation multi-layered member for a display apparatus, an optical filter for a display apparatus having the same, and a display apparatus having the same. The color compensation multi-layered member for a display apparatus includes a thin layer having a thickness of about 780 nm or less and a first refractive index; a first thick layer having a greater thickness than the thin layer, being formed on a surface of the thin layer, and having a second refractive index; and a second thick layer having a greater thickness than the thin layer, being formed on another surface of the thin layer, and having a third refractive index.