Title :
Ultra High Contrast GxLTM Device for Laser Projector
Author :
Saruta, K. ; Nishida, M. ; Yamaguchi, M. ; Ito, Y. ; Yamashita, K. ; Taguchi, A. ; Oniki, K. ; Tamada, H.
Author_Institution :
Sony Corp., Kanagawa
Abstract :
This paper presents a GxL device that exhibits an extremely high contrast ratio. We achieved a very high device contrast ratio of 34700 by optimizing the design of the posts that support the ribbons and flattening the sacrificial layer. By miniaturizing the chip and improving the packaging, we were able to shrink the GxL module by 75%. Dramatic image quality improvement of the GxL projector system was confirmed. No degradation of the GxL device was observed after a temperature cycling test.
Keywords :
diffraction gratings; display devices; light valves; optical projectors; GxL projector system; grating light valve; image quality; laser projector; packaging; ribbons; sacrificial layer; temperature cycling; ultra high contrast GxL device; Actuators; Brightness; Diffraction; Displays; Fluctuations; Gratings; Image quality; Robustness; Solid state circuits; Transducers; GxL; grating light valve; high contrast; ribbon height fluctuation; ribbon post; sacrificial layer flattening;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2007. TRANSDUCERS 2007. International
Conference_Location :
Lyon
Print_ISBN :
1-4244-0841-5
Electronic_ISBN :
1-4244-0842-3
DOI :
10.1109/SENSOR.2007.4300588
