High resolution photolithography for direct view active matrix organic light-emitting diode augmented reality displays

article















Malinowski, P.E.

Ke, T.H.

Nakamura, A.

Liu, Y.-H.

Velpen, D. van der

Vandenplas, E.

Papadopoulos, N.

Kronemeijer, A.J.

Steen, J.L. van der

Steudel, S.

Kuo, C.C.

Huang, Y.Y.

Chen, Y.H.

Yeh, M.H.

Gelinck, G.

Heremans, P.
High-resolution RGB organic light-emitting diode frontplane is a key enabler for direct-view transparent augmented reality displays. In this paper, we demonstrate 1250 ppi passive displays and semi-transparent active displays. Organic light-emitting diode photolithography can provide pixel density above 1000 ppi while keeping effective emission area high because of high aperture ratio. Patterns with 2 μm line pitch were successfully transferred to emission layers, indicating possible further pixel density scaling. Lifetime after patterning, key parameter enabling industrialization, is above 150 h (T90 at 1000 nit).
Topics



AMOLED displayPhotolithographyRGB OLEDUltra-high resolution
TNO Identifier
955006
Repository link
https://resolver.tno.nl/uuid:1ad3c9bc-fa15-4b5f-8658-4cf641313948
ISSN
10710922
Source
Journal of the Society for Information Display, 26(3), pp. 128-136.
Publisher
Wiley-Blackwell Publishing Ltd
Pages
128-136
Files
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