Fig 1 - uploaded by Wei-Feng Xu
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Schematic diagrams of the device structure of: (a) OLED panel with a circular polarizer, and (b) OLED panel with a circular polarizer and diffraction optical element. The Pentile TM matrix of RGB subpixels is also shown in the inset.
Source publication
A circular polarizer combined with a diffraction optical structure was developed to reduce the angular color shift of RGB OLEDs with a microcavity structure. The 45° tilted color gamut of commercial OLED tablet displays was enhanced from 61% to 69% NTSC (CIE 1931), and the visible greenish white images at the large viewing angle have been suppresse...
Context in source publication
Context 1
... demonstrate the application of diffractive optical elements (DOEs) in RGB OLEDs, they were incorporated into the devices with a circular polarizer ( Fig. 1(b)). The circular polarizer combines a linear polarizer with a quarter-wave plate (QWP) to eliminate internal reflections of ambient light. The DOEs comprise a plurality of superposed laminar phase gratings (PG) formed on the surface without a pretreated layer (e.g., AR or AG-LR) of a substrate (e.g., TAC or PMMA). The microstructured ...
Citations
Flexible and foldable displays have been widely promoted in various usage scenarios. Here we discussed the failure of the cover window of the OLED panel when folded, and also investigated the optical image quality enhancement of the display simultaneously during application, such as controlling of color shift at bright state by viewing angle. Through optimization of these tailored optical films, we integrated them into one plate and demonstrated some superior properties on OLED
