Wide Viewing Angle TN LCD Enhanced by Printed Quantum-Dots Film

Jhou Pu Yang, En Lin Hsiang, Huang Ming Philip Chen

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations


The low heavy metal and heavy metal free QDs (Cd < 100 ppm, Pb-free) content of the R, G, B-QDs was deposited on top of the conventional twist nematic (TN) liquid crystal device to improve the viewing angle of liquid crystal display. The non-vacuum, low materials consumption solution process by aerosol-jet deposition has the advantage of direct printing on black matrix pattern glass. The intensity of 410 nm was applied to excite the QD film and was modulated by the TN cell. As a result, the LC retardation and response time can be fully optimized within the small cell gap. In particular, the eco-QD array TNLCD possesses wide viewing angle, high transmittance, and fast response time (< 3 ms) under low driving voltage (4 V).

Original languageEnglish
Pages (from-to)21-24
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - 2016
Event54th Annual SID Symposium, Seminar, and Exhibition 2016, Display Week 2016 - San Francisco, United States
Duration: 22 May 201627 May 2016


  • Aerosol-jet printing
  • Liquid crystal device
  • Quantum-dots films
  • Viewing angle


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