Color‐by‐blue quantum dot (QD)‐emissive liquid‐crystal displays (LCDs) with eco‐friendly, green, red (GR) InP/ZnSeS/ZnS QD films are introduced to overcome the disadvantages of conventional color‐by‐white color filter (CF)‐assisted LCDs, such as a narrow viewing angle, low external device efficiency of these types of LCDs, and a restricted color gamut. In this study, the color‐by‐blue InP‐based QD‐emissive LCD consists of a blue (B) light‐emitting diode (LED) and GR InP‐based QD films sandwiched between a light recycling filter and a long‐wavelength pass dichroic filter. The GR InP‐based QDs are synthesized with a high photoluminescence quantum yield (>77%) and narrow bandwidth (<40 nm), which are suitable for display applications. The overall enhancement of InP‐based QD‐emissive LCDs, in this case by the enhanced efficiency of a blue LED backlight transmitted through the LC shutter compared to a white LED backlight and the improved efficiency of the enlarged color gamut, is 2.42 times that of a conventional red, green, and blue (RGB) CF‐LCD with a GR phosphor‐converted (pc)‐LED (a B LED + R K₂SiF₆:Mn + G β‐SiAlON:Eu phosphor) backlight. Therefore, this considerable enhancement of the external efficiency of a QD‐emissive LCD makes it more feasible as a replacement for conventional RGB CF‐assisted LCDs.

中文翻译：

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通过使用窄带GR InP / ZnSeS / ZnS QD胶片替换RGB彩色滤光片来实现逐蓝QD发射LCD

引入了具有绿色，绿色，红色（GR）InP / ZnSeS / ZnS QD薄膜的逐蓝量子点（QD）发光液晶显示器（LCD），以克服常规逐白彩色的缺点彩色滤光片（CF）辅助的LCD，例如窄视角，这些类型的LCD的外部设备效率低以及色域受限制。在这项研究中，基于蓝绿色InP的QD发射LCD由蓝色（B）发光二极管（LED）和基于GR InP的QD膜组成，它们夹在光回收滤光片和长波通之间二向色滤光片。基于GR InP的量子点具有很高的光致发光量子产率（> 77％）和窄带宽（<40 nm），适合显示应用。基于InP的QD发射LCD的整体增强，₂ SiF ₆：Mn + Gβ-SiAlON：Eu荧光粉）背光。因此，这种QD发射LCD的外部效率的显着提高使其成为替代常规RGB CF辅助LCD的更可行的方法。