Bidirectional OLED microdisplay: Combining display and image sensor functionality into a monolithic CMOS chip

Author

Richter, Bernd ; Vogel, Uwe ; Herold, Rigo ; Fehse, Karsten ; Brenner, Stephan ; Kroker, Lars ; Baumgarten, Judith

Author_Institution

Fraunhofer Inst. for Photonic Microsyst., Dresden, Germany

fYear

2011

fDate

20-24 Feb. 2011

Firstpage

314

Lastpage

316

Abstract

This paper presents a bidirectional OLED microdisplay (BiMi) with a mono chrome 320x240 (QVGA) display and a nested image sensor with 160x120 pixels in a commercially available 0.35μm 3.3V/12V CMOS process with customized top metal. The BiMi was designed as a universal prototype for evaluating the necessary display parameters in see-through HMDs and the eye-tracking capabilities in a nested setup with relatively low resolution. Because of the varying ambient light levels in see-through applications the main target was to achieve a wide range of possible display luminances from 100 to 10000Cd/m² instead of high resolution.

Keywords

CMOS image sensors; brightness; microdisplays; organic light emitting diodes; QVGA display; didirectional OLED microdisplay; display luminances; eye-tracking; image sensor; mono chrome display; monolithic CMOS chip; size 0.35 mum; voltage 12 V; voltage 3.3 V; Driver circuits; Image sensors; Microdisplays; Optical imaging; Optical sensors; Organic light emitting diodes; Pixel;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

978-1-61284-303-2

Type

conf

DOI

10.1109/ISSCC.2011.5746334

Filename

5746334