Westerman, Hattori, Daniels & Adrian, LLP
Optical device comprising an alignment layer having a photoisomer group irradiated with light to change a refractive index of a liquid crystal layer and display apparatus having the same
An optical device for a display panel. The optical device comprises an optical element (1). The optical element (1) may include a first surface (3) and a second surface (4) opposite the first surface, and side surfaces. The optical device may further comprise a light source (2) facing one of the side surfaces of the optical element (1). The optical element (1) may comprise a compound containing a photoisomer group. The photoisomer group may undergo a photoisomerization under an irradiation of the light source. Accordingly, an illumination area by a light passing through the first surface (3) and exiting from the second surface (4) may increase or decrease.
BOE TECHNOLOGY GROUP CO., LTD.
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Chunyan Wenbo
Ji Li