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该论文提出了一种双向OLED微显示器,将显示与图像传感器功能单片集成在CMOS芯片上,解决了传统微显示器仅作为单向输出设备的问题,适用于近眼应用如取景器和头戴显示器。
light-emitting diodes (OLEDs) achieve high optical performance with excellent contrast ratio and large dynamic range at low power consumption. The direct light emission from the OLED enables small devices without additional backlight, making them suitable for mobile near-toeye (NTE) applications such as viewfinders or head-mounted displays (HMD). In these applications the microdisplay acts typically as a purely unidirectional output device [1-3]. With the integration of an additional image sensor, the functionality of the microdisplay can be extended to a bidirectional optical input/output device. The major aim is the implementation of eye-tracking capabilities in seethrough HMD applications to achieve gaze-based human-display-interaction. This paper presents a bidirectional OLED microdisplay (BiMi) with a monochrome 320×240 (QVGA) display and
Bernd Richter, Uwe Vogel, Rigo Herold, Karsten Fehse,
Stephan Brenner, Lars Kroker, Judith Baumgarten Fraunhofer Institute for Photonic Microsystems, Dresden, Germany Microdisplays based on organic