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High-resolution LCOS microdisplay with sub-kHz frame rate for high performance, high precision 3D sensor

: Lazarev, G.; Bonifer, S.; Engel, P.; Höhne, D.; Notni, G.


Kress, B.C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Digital Optical Technologies 2017 : 26-28 June 2017, Munich, Germany
Bellingham, WA: SPIE, 2017 (Proceedings of SPIE 10335)
ISBN: 978-1-5106-1115-3
ISBN: 978-1-5106-1116-0
Paper 103351B
Conference "Digital Optical Technologies" <2017, Munich>
Conference Paper
Fraunhofer IOF ()

We report about the implementation of the liquid crystal on silicon (LCOS) microdisplay with 1920 by 1080 resolution and 720 Hz frame rate. The driving solution is FPGA-based. The input signal is converted from the ultrahigh-resolution HDMI 2.0 signal into HD frames, which follow with the specified 720 Hz frame rate. Alternatively the signal is generated directly on the FPGA with built-in pattern generator. The display is showing switching times below 1.5 ms for the selected working temperature. The bit depth of the addressed image achieves 8 bit within each frame. The microdisplay is used in the fringe projection-based 3D sensing system, implemented by Fraunhofer IOF.