Abstract
Applying quantum dot (QDs)‐based photoluminescent color filter arrays to mono‐color OLED displays and liquid crystal displays is considered a promising method to broaden the color gamut and boost the brightness and efficiency of the display. However, the ambient light could excite the semiconductor QDs and QRs, decreasing the display ambient contrast ratio. Adding a traditional absorptive CF array has limited functions in solving this problem due to the broadband transmission band of pigments. With a larger Stokes shift, QRs are more suitable for suppressing photoluminescent reflection. In this article, we simulate the ambient contrast ratio of a QD/QR‐OLED display, considering the parameters of backlight, the Stokes shift, the absorption strength, and spectral properties of QRs, QDs, and absorptive CFs, our discussion provides insight for optimization of the display ambient contrast ratio.
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