3m Innovative Properties Company

Noboru Iwata

Yuji Saito

Atsushi Ono

Kentaro Tamura

A display device according to one aspect of the present invention includes: a display unit configured to have display information and emits visible light having a continuous spectrum; an infrared cut-off part configured to transmit the visible light from the display unit and to reduce the amount of infrared light striking the display unit; and a reflecting part configured to reflect the visible light having passed through the infrared cut-off part. The infrared cut-off part includes a first polymer film and a second polymer film, the first polymer film includes an infrared cut-off layer configured to reduce infrared light transmission, and the second polymer film includes a high-retardation polyester film and is disposed between the first polymer film and the display unit.

Display device and infrared light cut-off film

The display device according to an embodiment of the present invention comprises: a display unit () emitting visible light (L) of linearly polarized waves having display information, an infrared light-cutting section () transmitting the visible light (L) from the display unit () and reducing an incident quantity of infrared light on the display unit (), and a reflecting section () reflecting visible light (L) transmitted through the infrared light-cutting section (); the infrared light-cutting section () comprising a first polymer film () and a second polymer film () disposed on the first polymer film (), the first polymer film () and the second polymer film () both having anisotropy of refractive indices and having a first axis (Ax) having a highest of the refractive indices, the first axis (Ax) of the first polymer film () and the first axis (Ax) of the second polymer film () intersecting in a planar view.

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Tokyo, Japan

Noboru Iwata