"The focus of this chapter is to consider additional functionalities beyond the regular display function of an active matrix organic light-emitting diode (AMOLED) display. We will discuss how to improve the resolution of the array with OLED lithography pushing to AR/VR standards. Also, the chapter will give an insight into pixel design and layout with a strong focus on high resolution, enabling open areas in pixels for additional functionalities. An example of such additional functionalities would be to include a photodetector in pixel, requiring the need to include in-panel TFT readout at the peripherals of the full-display sensor array for applications such as finger and palmprint sensing."
Meanwhile, Vkansee works with China-based Tianma to productize its on-dusplay optical fingerprint sensor:
"Vkansee’s proprietary Matrix Pinhole Image Sensing (MAPIS) – is integrated into the mobile phone OLED display panel, effectively turning the entire display into a high-resolution fingerprint lens allowing simple installation of the image sensor anywhere or everywhere under the OLED display screen. Unlike other solutions that implement FOD and yield poor quality fingerprint images, the MAPIS OLED solution captures high-quality images, because the in-panel optical design avoids the influence of obstructing TFT driver circuits."
“We are focused on bringing our novel MAPIS optical fingerprinting technology to users across the globe to improve security and convenience, and hope to make MAPIS optics as a standard design of OLED,” stated Jason Chaikin, President of VKANSEE. “In partnership with Tianma, we’re confident this will happen in the near future. We believe integrating the MAPIS optics into the OLED screen will greatly change the fingerprint sensor industry similar to the history of integrating touch sensing into the OLED screen.”
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