Luminance compensation for AMOLED displays using integrated MIS sensors

Yuri Vygranenko, Miguel Fernandes, Paula Louro, Manuela Vieira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Active-matrix organic light-emitting diodes (AMOLEDs) are ideal for future TV applications due to their ability to faithfully reproduce real images. However, pixel luminance can be affected by instability of driver TFTs and aging effect in OLEDs. This paper reports on a pixel driver utilizing a metal-insulator-semiconductor (MIS) sensor for luminance control of the OLED element. In the proposed pixel architecture for bottom-emission AMOLEDs, the embedded MIS sensor shares the same layer stack with back-channel etched a Si:H TFTs to maintain the fabrication simplicity. The pixel design for a large-Area HD display is presented. The external electronics performs image processing to modify incoming video using correction parameters for each pixel in the backplane, and also sensor data processing to update the correction parameters. The luminance adjusting algorithm is based on realistic models for pixel circuit elements to predict the relation between the programming voltage and OLED luminance. SPICE modeling of the sensing part of the backplane is performed to demonstrate its feasibility. Details on the pixel circuit functionality including the sensing and programming operations are also discussed.

Original languageEnglish
Title of host publicationOptical Sensors 2017
PublisherSpie -- the Int Soc for Optical Engineering
Volume10231
ISBN (Electronic)978-151060963-1
DOIs
Publication statusPublished - 1 Jan 2017
EventOptical Sensors 2017 - Prague, Czech Republic
Duration: 24 Apr 201727 Apr 2017

Conference

ConferenceOptical Sensors 2017
CountryCzech Republic
CityPrague
Period24/04/1727/04/17

Fingerprint

Organic Light-emitting Diodes
Luminance
Insulator
Organic light emitting diodes (OLED)
MIS (semiconductors)
luminance
Semiconductors
Display
light emitting diodes
Pixel
Metals
Pixels
pixels
Display devices
Semiconductor materials
Sensor
sensors
Sensors
matrices
programming

Keywords

  • Amorphous silicon
  • Displays
  • Optical feedback
  • Pixel circuits

Cite this

Vygranenko, Y., Fernandes, M., Louro, P., & Vieira, M. (2017). Luminance compensation for AMOLED displays using integrated MIS sensors. In Optical Sensors 2017 (Vol. 10231). [UNSP 1023128] Spie -- the Int Soc for Optical Engineering. https://doi.org/10.1117/12.2265937
Vygranenko, Yuri ; Fernandes, Miguel ; Louro, Paula ; Vieira, Manuela. / Luminance compensation for AMOLED displays using integrated MIS sensors. Optical Sensors 2017. Vol. 10231 Spie -- the Int Soc for Optical Engineering, 2017.
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Vygranenko, Y, Fernandes, M, Louro, P & Vieira, M 2017, Luminance compensation for AMOLED displays using integrated MIS sensors. in Optical Sensors 2017. vol. 10231, UNSP 1023128, Spie -- the Int Soc for Optical Engineering, Optical Sensors 2017, Prague, Czech Republic, 24/04/17. https://doi.org/10.1117/12.2265937

Luminance compensation for AMOLED displays using integrated MIS sensors. / Vygranenko, Yuri; Fernandes, Miguel; Louro, Paula; Vieira, Manuela.

Optical Sensors 2017. Vol. 10231 Spie -- the Int Soc for Optical Engineering, 2017. UNSP 1023128.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Vygranenko Y, Fernandes M, Louro P, Vieira M. Luminance compensation for AMOLED displays using integrated MIS sensors. In Optical Sensors 2017. Vol. 10231. Spie -- the Int Soc for Optical Engineering. 2017. UNSP 1023128 https://doi.org/10.1117/12.2265937