Multi-layer co-extruded quantum-dot diffuser plate for ultra-large TV backlights
Optical Materials Express, ISSN: 2159-3930, Vol: 12, Issue: 4, Page: 1648-1656
2022
- 19Citations
- 6Captures
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Article Description
This paper reports an ultra-large laminated quantum dot diffuser plate (QD-DP) prepared by a multi-layer co-extrusion method for television (TV) backlights. The QD-DP has a sandwich-like structure that contains a middle QD functional layer for color conversion and top/bottom polymer layers for both encapsulation and protection. Reliability tests show that the QD-DP exhibits outstanding long-term stability under harsh conditions with continuous blue light excitation, high temperature, and high humidity. A 75-inch TV prototype is assembled by employing an ultra-large QD-DP based backlight module, which can achieve the color gamut of 118.3% NTSC1931, the brightness of 372 nits, and the uniformity of 84%. Compared with conventional QD-film based TV, the proposed TV prototype provides comparable performance with a simpler structure and lower cost. As a promising QD backlight device, this new QD device has a bright application prospect in large-sized displays.
Bibliographic Details
Optica Publishing Group
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