25‐2: Invited Paper: Ultra‐High‐Resolution NanoLED Panel for AR/VR by UV Patterning Technology

Abstract

We report and discuss UV patterning technology of nanoLED with ultra‐high‐resolution. Additionally, we also report on the performances of the ultra‐high‐resolution nanoLED panel for ARJVR by UV patterning technology.

61‐1: Invited Paper: Development of Active‐Matrix nanoLED Display with Cadmium Free QDs Patterned by Photolithography Process in the Atmosphere

“…Recently, nanoLED composed of indium phosphide (InP) QDs for red and green, and ZnTeSe for blue with high EQE have been reported 2-6, 23 . There are some efforts to narrow FWHM than InP with ternary Cd-free QDs 21 . The second one is about the fabrication processes, specifically, the RGB color patterning process.…”

“…Patterning process via photolithography is available for wide range of display resolution including ultra-high-definition. A nanoLED with top emission structure on a silicon wafer with 3,994ppi, or 6.36 micron pixel pitch was achieved without color crosstalk and color mixing of EL emission viewed from any direction 21 . Furthermore, 6,048 ppi, or 4.2 micron pixel pitch was successfully patterned and patterning process via photolithography has been shown to be promising technology for the application such as AR/VR.…”

How NanoLED Will Enable Next‐Generation Displays

“…8 Cadmium is extremely limited under the Restrictions of Hazardous Substances (RoHS) regulation, making it impractical to use Cd-based QDs in display applications. Consequently, alternative non-toxic QD materials, such as indium phosphide (InP), [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] zinc selenide (ZnSe), zinc selenium telluride (ZnSeTe), 18,22, and others, are under consideration for nanoLED devices.…”

High‐precision and high‐stability inkjet printing technology for QD color converter‐type micro‐LED display

“…Regarding a color conversion method, a lot of developments using quantum dot (QD) materials are being actively done 2–5 . Furthermore, the development of display devices that make QDs self‐luminous is also active, and the use of QD materials is progressing 6–12 . It can control a color to be converted by a size of a QD particle.…”

“…[2][3][4][5] Furthermore, the development of display devices that make QDs selfluminous is also active, and the use of QD materials is progressing. [6][7][8][9][10][11][12] It can control a color to be converted by a size of a QD particle. If the QD particle size is smaller, the emitting wavelength is shorter.…”