Color‐by‐Blue QD‐Emissive LCD Enabled by Replacing RGB Color Filters with Narrow‐Band GR InP/ZnSeS/ZnS QD Films | Zendy

Kang Hyelim | Zendy; Kim Sohee | Zendy; Oh Ji Hye | Zendy; Yoon Hee Chang | Zendy; Jo JungHo | Zendy; Yang Heesun | Zendy; Do Young Rag | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Color‐by‐Blue QD‐Emissive LCD Enabled by Replacing RGB Color Filters with Narrow‐Band GR InP/ZnSeS/ZnS QD Films

Author(s) -

Kang Hyelim,

Kim Sohee,

Oh Ji Hye,

Yoon Hee Chang,

Jo JungHo,

Yang Heesun,

Do Young Rag

Publication year - 2018

Publication title -

advanced optical materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.89

H-Index - 91

ISSN - 2195-1071

DOI - 10.1002/adom.201701239

Subject(s) - gamut , backlight , materials science , color gel , optoelectronics , liquid crystal display , rgb color model , color filter array , phosphor , dichroic filter , cyan , optics , photoluminescence , primary color , quantum dot , quantum efficiency , wavelength , thin film transistor , nanotechnology , physics , computer science , layer (electronics) , operating system

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 K 2 SiF 6 :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.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research