An SLM-based digital display system (10) having a graphics display subsystem (13 and 18) for closed captioning, on-screen displays, and other graphics images that are overlaid on the video image. The graphics display subsystem (13 and 18) has a graphics processor (21) that prepares the graphics data,...http://www.google.fr/patents/US5519450?utm_source=gb-gplus-shareBrevet US5519450 - Graphics subsystem for digital television
