The comprehensive mechanism of updatable holographic diffraction is presented for a monolithic compound of 3-[(4-nitrophenyl)azo]-9H-carbazole-9-ethanol (NACzE) dispersed poly(methyl methacrylate) film device. The maximum sensitivity occurs at 561 nm, which well coincides with an isosbestic point between cis-trans isomers of NACzE molecule. The holographic grating is ascribed to the absorption grating and the following refractive index grating due to the photo-orientation of NACzE molecules. The response and decay times for the diffraction are governed by the glass transition temperature of the matrix.

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We present here recent progress of updatable holographic stereogram 3D display systems using monolithic organic compound film device. Current system promises full color updatable holographic 3D display system.