Title

Tandem Oled And Reflective Lcd With A Microlens Array

Abstract

A tandem device by stacking a normally black reflective liquid crystal display (NB-RLCD) and an organic light-emitting device (OLED) is demonstrated which can be operated under bright and dark ambient by switching between the two modes. The vertically integrated architecture increases the aperture ratio, brightness and resolution of the display. The normally black characteristic of the RLCD serves a function to increase the ambient contrast ratio (A-CR) under OLED mode operation. Under NB-RLCD mode operation, a high A-CR over 40:1 was obtained. Besides, a microlens array is embedded to the device for improving the viewing angle of the RLCD (CR>2:1 over 55° viewing cone) and enhancing (44%) the external quantum efficiency of the OLED.

Publication Date

1-1-2006

Publication Title

Digest of Technical Papers - SID International Symposium

Volume

37

Issue

1

Number of Pages

68-70

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1889/1.2433601

Socpus ID

34547507919 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34547507919

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