Patent ID: 11914251
Assignee: SEEREAL TECHNOLOGIES S.A.
Field: Optics (Instruments)
Classification: CPC G  Y | IPC G

Claim 8:
9. A holographic display device comprising:
a liquid crystal light deflection device comprising:
a first electrode structure comprising a plurality of linear electrodes arranged side by side;
a second electrode structure comprising a common electrode facing the first electrode structure,
a liquid crystal layer disposed between the first electrode structure and the second electrode structure to form a saw-tooth profile due to rotation of orientations of liquid crystal molecules according to an electric field between the first electrode structure and the second electrode structure,
a control circuits configured to control a voltage applied to the first electrode structure and a voltage applied to the second electrode structure,
the orientations of the liquid crystal molecules in the liquid crystal layer are turned into a defined neutral state by an electric field formed between adjacent linear electrodes within the first electrode structure, before a different diffractive structure is formed by the saw-tooth profile.