High-quality quantum-dot-based full-color display technology by pulsed spray method

Kuo-Ju Chen; Hsin-Chu Chen; Kai-An Tsai; Chien-Chung Lin; Hsin-Han Tsai; Shih-Hsuan Chien; Bo-Siao Cheng; Yung-Jung Hsu; Min-Hsiung Shih; Hao-Chung Kuo

doi:10.1117/12.2004101

4 March 2013 High-quality quantum-dot-based full-color display technology by pulsed spray method

Kuo-Ju Chen, Hsin-Chu Chen, Kai-An Tsai, Chien-Chung Lin, Hsin-Han Tsai, Shih-Hsuan Chien, Bo-Siao Cheng, Yung-Jung Hsu, Min-Hsiung Shih, Hao-Chung Kuo

Author Affiliations +

Proceedings Volume 8641, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVII; 864121 (2013) https://doi.org/10.1117/12.2004101
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

We fabricated the colloidal quantum-dot light-emitting diodes (QDLEDs) with the HfO2/SiO2-distributed Bragg reflector (DBR) structure using a pulsed spray coating method. Moreover, pixelated RGB arrays, 2-in. wafer-scale white light emission, and an integrated small footprint white light device were demonstrated. The experimental results showed that the intensity of red, blue, and green (RGB) emissions exhibited considerable enhancement because of the high reflectivity in the UV region by the DBR structure, which subsequently increased the use in the UV optical pumping of RGB QDs. In this experiment, a pulsed spray coating method was crucial in providing uniform RGB layers, and the polydimethylsiloxane (PDMS) film was used as the interface layer between each RGB color to avoid crosscontamination and self-assembly of QDs. Furthermore, the chromaticity coordinates of QDLEDs with the DBR structure remained constant under various pumping powers in the large area sample, whereas a larger shift toward high color temperatures was observed in the integrated device. The resulting color gamut of the proposed QDLEDs covered an area 1.2 times larger than that of the NTSC standard, which is favorable for the next generation of high-quality display technology.

Citation Download Citation

Kuo-Ju Chen, Hsin-Chu Chen, Kai-An Tsai, Chien-Chung Lin, Hsin-Han Tsai, Shih-Hsuan Chien, Bo-Siao Cheng, Yung-Jung Hsu, Min-Hsiung Shih, and Hao-Chung Kuo "High-quality quantum-dot-based full-color display technology by pulsed spray method", Proc. SPIE 8641, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVII, 864121 (4 March 2013); https://doi.org/10.1117/12.2004101

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

RGB color model

Ultraviolet radiation

Quantum dot displays

Coating

Light emitting diodes

Absorption

Display technology

Show All Keywords

Keywords/Phrases

Search In:

Publication Years