Monolithic full‐color microdisplay using patterned quantum dot photoresist on dual‐wavelength LED epilayers. Issue 3 (10th September 2020)

• Record Type: Journal Article
• Authors: Li, Peian; Zhang, Xu; Li, Yangfeng; Qi, Longheng; Tang, Chak Wah; Lau, Kei May
• Is Part Of: Journal of the Society for Information Display. Volume 29:Issue 3(2021)
• Page Start: 157
• Page End: 165
• Publication Date: 2020-09-10
• Subjects: full‐color -- LED -- microdisplay -- quantum dot; Information display systems -- Periodicals; 621.38154205
• DOI: 10.1002/jsid.966
• Languages: English
• ISSNs: 1071-0922

Abstract

Abstract: A passive‐matrix monolithic full‐color InGaN light emitting diode (LED) microdisplay with 40 × 40 full‐color pixels is demonstrated. Each full‐color pixel consists of red, green, and blue (RGB) subpixels that have a pitch size of 40 μm × 120 μm. The full‐color microdisplay is monolithically fabricated on blue/green dual‐wavelength LED epilayers, using red quantum dot photoresist as a color converter. Pure RGB emission and a wide color gamut are achieved, as shown by electroluminescence spectra. Full‐color patterns with controllable grayscale and color mixing can be clearly rendered driven by a full‐color microdisplay controller, indicating tremendous potential of this novel approach for full‐color LED microdisplays in the future. Abstract : A passive‐matrix monolithic full‐color InGaN light emitting diode (LED) microdisplay is demonstrated in this work. The full‐color microdisplay is monolithically fabricated on blue/green dual‐wavelength LED epilayers, using red quantum dot photoresist as a color converter. Full‐color patterns can be clearly rendered driven by a microdisplay controller, indicating tremendous potential of this novel approach for full‐color LED microdisplays in the future.