EP3339920

• Samsung Display Co., Ltd.since May 25, 2018; EPO record ends Jul 8, 2022

[0001] A photoluminescence device (PLD) for an image-generating device (IMGD) includes a colour conversion pattern (CCP), a colour filter (CF), and a low index of refraction layer (LIRL). The colour conversion pattern (CCP) has a first refractive index and is configured to convert light transmitted from the image-generating device (IMGD) from one wavelength to another. The colour filter (CF) is configured to selectively pass light of a given range of wavelengths transmitted through the colour conversion pattern (CCP). The low index of refraction layer (LIRL) has a second refractive index and is disposed between the colour conversion pattern (CCP) and the colour filter (CF). The second refractive index is lower than the first refractive index.