41‐5: <i>Invited Paper:</i> Quantum Dot Conversion Layers Through Inkjet Printing

Lee, Ernest; Tangirala, Ravisubhash; Smith, Austin M.; Carpenter, Amanda; Hotz, Charlie; Kim, Heejae; Yurek, Jeff; Miki, Takayuki; Yoshihara, Sunao; Kizaki, Takeo; Ishizuka, Aya; Kiyoto, Ikuro

doi:10.1002/sdtp.12452

Cited by 47 publications

(36 citation statements)

References 3 publications

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“…Numerous presentations and articles have proposed the use of quantum dots (QDs) as a downconverter material dispersed in thin organic films for applications in microLED displays and color filters [1][2][3] but without detail on the design requirements. In the case of microLEDs, this approach allows making a fullcolor RGB display from monochromatic blue GaN starting sources, thereby avoiding the challenges of massively parallel transfer from three separate types of LED wafers with three different performance characteristics.…”

Section: Introductionmentioning

confidence: 99%

4‐5: Quantum Dot Design Criteria for Color Conversion in MicroLED Displays

Osinski

Palomaki²

2019

Symp Digest of Tech Papers

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Published absorption values of common types of colloidal quantum dots have been used to calculate the loading requirements in a thin polymer film for application in color- converted microLED displays. The loading requirements as a function of the QD material and design are explored and discussed, with the goal of maximizing blue photon absorption for conversion to red and green in a model layer 5 microns thick.

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Section: Introductionmentioning

confidence: 99%

4‐5: Quantum Dot Design Criteria for Color Conversion in MicroLED Displays

Osinski

Palomaki²

2019

Symp Digest of Tech Papers

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“…1b, each blue LED chip pumps a subpixel in the patterned CC layer (quantum dots or phosphors) 44 . An absorptive colour filter (CF) array is registered above to absorb unconverted blue light 44,45 and suppress ambient excitations. This filter also enhances the ACR so that no CP is required.…”

Section: Device Configurationsmentioning

confidence: 99%

“…In Fig. 1b, the patterned CC film is normally a quantum dot colour filter (QDCF) 44 . The overall EQE becomes a product of the blue chip EQE (EQE chip,B ) and QDCF's CC efficiency (EQE QDCF ).…”

Section: (B) Colour Conversion Emissive Displaysmentioning

confidence: 99%

Mini-LED, Micro-LED and OLED displays: present status and future perspectives

et al. 2020

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Presently, liquid crystal displays (LCDs) and organic light-emitting diode (OLED) displays are two dominant flat panel display technologies. Recently, inorganic mini-LEDs (mLEDs) and micro-LEDs (μLEDs) have emerged by significantly enhancing the dynamic range of LCDs or as sunlight readable emissive displays. "mLED, OLED, or μLED: who wins?" is a heated debatable question. In this review, we conduct a comprehensive analysis on the material properties, device structures, and performance of mLED/μLED/OLED emissive displays and mLED backlit LCDs. We evaluate the power consumption and ambient contrast ratio of each display in depth and systematically compare the motion picture response time, dynamic range, and adaptability to flexible/transparent displays. The pros and cons of mLED, OLED, and μLED displays are analysed, and their future perspectives are discussed.

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“…Recently, Nanosys realized stripe patterns with 2 μm width and 12 μm length through a conventional lithography [ 33 ]. Nanosys and DIC Corporation jointly demonstrated the possibility of the inkjet-printed QD as the color conversion layer on μLED arrays even though the presented subpixel size was 280 μm x 80 μm [34]. Prof. Norris group in ETH Zurich demonstrated QD patterns with down to 100 nm in diameter by electro-hydrodynamic jetting [ 35 ].…”

Section: Rgb Realizationmentioning

confidence: 99%

32‐1: Invited Paper: Review of Micro‐light‐emitting‐diode Technology for Micro‐display Applications

Jung¹,

Choi²,

Jang³

et al. 2019

Symp Digest of Tech Papers

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In this paper, some of the technological bottlenecks of the microlight-emitting diode (μLED) for a micro-display were reviewed. Although there remain other issues, the μLED technology has a potential for some micro-display applications which especially demand high brightness and reliability such as augmented reality (AR) display, automotive head-up display (HUD), and so on. The efficiency of μLED needs to be improved, and an integration technology for active matrix driving and technologies for full-color realization as well as defective pixel control must be developed. An optimum specification of a μLED display was proposed to maximize reality in micro-display products.

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41‐5: Invited Paper: Quantum Dot Conversion Layers Through Inkjet Printing

Cited by 47 publications

References 3 publications

4‐5: Quantum Dot Design Criteria for Color Conversion in MicroLED Displays

4‐5: Quantum Dot Design Criteria for Color Conversion in MicroLED Displays

Mini-LED, Micro-LED and OLED displays: present status and future perspectives

32‐1: Invited Paper: Review of Micro‐light‐emitting‐diode Technology for Micro‐display Applications

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