Optical Efficiency Enhancement in Wide Color Gamut LCD by a Patterned Quantum Dot Film and Short Pass Reflector

Hyo Jun Kim, Min Ho Shin, Joo Suc Kim, Young Joo Kim

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)


Liquid-crystal display (LCD) with patterned quantum dot (QD) film and short-pass reflector (SPR) was proposed and has an advantage for dramatically enhancement of optical efficiency compared to LCD prepared with a mixed QD film (reference). In proposed LCD structure, the optical power in blue, green, and red color was increased by 869%, 256%, and 85% compared with the reference, respectively. This enhancement comes from the two facts; 1) blue backlight is converted to green or red light separately by each patterned green or red QD film entered directly to each CF without any different color cut, 2) SPR reflects the backward emission of QD to forward direction, preventing the absorption loss of backward emission by back light unit. Additionally, we obtained high color gamut of NTSC 125% in our proposed LCD using a broad-band CF while maintaining the maximum optical intensity with relatively high CF transmittance.

Original languageEnglish
Pages (from-to)827-829
Number of pages3
JournalDigest of Technical Papers - SID International Symposium
Issue number1
Publication statusPublished - 2016
Event54th Annual SID Symposium, Seminar, and Exhibition 2016, Display Week 2016 - San Francisco, United States
Duration: 2016 May 222016 May 27

Bibliographical note

Funding Information:
This work was supported by the Industrial Strategic Technology Development Program (No. 10035274) and the Advanced Technology Center Program (No. 10042178) funded by the Ministry of Trade, Industry and Energy of Korea.

Publisher Copyright:
© 2016 SID.

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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