Holographic optical element

摘要

PCT No. PCT/GB95/01322 Sec. 371 Date Dec. 5, 1996 Sec. 102(e) Date Dec. 5, 1996 PCT Filed Jun. 7, 1995 PCT Pub. No. WO95/34008 PCT Pub. Date Dec. 14, 1995A display device with a holographic diffuser which has at least first and second adjacent sets of holographic regions which overlap each other and wherein the first and second holographic regions diffract and direct light to respective first and second sets of imaging elements of a lcd to displays an image.