Tomoegawa Co., Ltd.

Naltec Inc.

Hiroyuki Abe

Masahide Sugiyama

Hiroto Katagiri

Tsubasa Sakano

Yusuke Takechi

Provided is an anisotropic optical film, which can, while keeping excellent display characteristics (e.g., brightness and contrast) in the direction of a viewing angle, suppress decreased display characteristics in the other directions, when the anisotropic optical film is used as a diffusion film of a display panel. In an anisotropic optical film including two or more anisotropic light diffusion layers where the linear transmittance varies depending on the incident angle of incident light, each of the anisotropic light diffusion layers is provided with a matrix region and a plurality of pillar regions that differ in refractive index from the matrix region, the film includes, as the anisotropic light diffusion layers, at least two types of anisotropic light diffusion layers (a) and (b) that differ in linear transmittance, the maximum linear transmittance of the anisotropic light diffusion (a) is 40% or more and less than 95%, and the minimum linear transmittance thereof is less than 20%, and the maximum linear transmittance of the anisotropic light diffusion layer (h) is 20% or more and less than 40%, and the minimum linear transmittance thereof is less than 20%.

Anisotropic optical film

Provided is a display apparatus which has a sufficient luminance even when viewed at a large viewing angle, and which can overcome a problem of color change. The display apparatus is a display apparatus including a display device showing a color change in accordance with viewer's viewing angle, and an anisotropic optical film having a diffusing property changed in accordance with the incident angle of light radiated thereinto. The anisotropic optical film has at least one scattering central axis, and an angle made between the scattering central axis and a direction along which the display device shows a minimum color change is from 20 to 65&#xb0;, or &#x2212;20 to &#x2212;65&#xb0;.

Display apparatus

The printer () includes a control unit () including a function reproducing multiple tones by outputting energization data that is dot control data in multiple cycles in line units to a head unit () including a plurality of dot generating elements disposed in a line. The control unit () includes: a thermal head control circuit () supplying the energization data of each cycle and a latch signal for the energization data of each cycle to the head unit (); and a mask circuit () operable when the energization data of the current cycle is the same as the energization data of the previous cycle, to erase the current energization data and the signal for latching to be supplied to the head unit ().

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Shizuoka, Japan

Hiroyuki Abe