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Micromachines
Special Issues
Recent Advances in Laser Displays
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Recent Advances in Laser Displays

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "A：Physics".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 2240

Special Issue Editors

Dr. Zhaomin Tong

E-Mail Website
Guest Editor
Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China
Interests: laser displays; wearable sensing; micro/nano technology
Prof. Dr. Yong Bi

E-Mail Website
Guest Editor
Technical Institute of Physics and Chemistry, China Academy of Sciences, Beijing 100190, China
Interests: laser displays; laser holographic 3D display; laser speckle; advanced laser applications
Prof. Dr. Muhammad Nadeem Akram

E-Mail Website
Guest Editor
Department of Microsystems, University College Southeast Norway, 3603 Tønsberg, Norway
Interests: photonics; optics; laser; laser displays; imaging; electromagnetism; semiconductor devices
Prof. Dr. Xuyuan Chen

E-Mail Website
Guest Editor
Department of Microsystems, University of South-Eastern Norway, 3603 Tønsberg, Norway
Interests: laser displays; MEMS/NEMS; energy storage; supercapacitors; 1/f noise; THz
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Comparing with other display technologies with incoherent illumination light sources, laser displays have attracted much attentions because they can provide wider color gamut, higher brightness, long-life operation and less power consumption. Laser displays have made substantial progress in recent years with the development of high-power and low-cost red/green/blue laser diodes. Nowadays, laser-based displays are heavily used in digital cinemas, home theaters, and virtual realities and augmented realities displays. To this end, we would like to invite reviews and original contributions to the Topical Collection “Recent Advances in Laser Displays”. Example topics include but not limited to: advanced laser technologies for display applications, laser phosphors; microdisplays, methods for optical field homogenization, speckle reduction, projection screen, optical design of projection and illumination optics, to name a few.

We look forward to receiving your submissions.

Dr. Zhaomin Tong
Prof. Dr. Yong Bi
Prof. Dr. Muhammad Nadeem Akram
Prof. Dr. Xuyuan Chen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Micromachines is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • laser display
  • laser projection
  • laser diode
  • microdisplay
  • digital micromirror device
  • liquid crystal on silicon
  • liquid crystal display
  • spatial light modulator

Published Papers (2 papers)

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Research

12 pages, 3278 KiB  
Article
Brightness Prediction of Large Color Gamut Laser Display Devices
by Jianying Zhu, Weinan Gao, Yong Bi, Zuyan Xu and Minyuan Sun
Micromachines 2023, 14(10), 1850; https://doi.org/10.3390/mi14101850 - 27 Sep 2023
Viewed by 1011
Abstract
A brightness-perceived color appearance model tailored for large gamut display devices, exemplified by laser displays, was investigated. Psychophysical experiments on the brightness matching of 30 color stimuli with achromatic white light were conducted by 16 observers. The analysis compares the performance of a [...] Read more.
A brightness-perceived color appearance model tailored for large gamut display devices, exemplified by laser displays, was investigated. Psychophysical experiments on the brightness matching of 30 color stimuli with achromatic white light were conducted by 16 observers. The analysis compares the performance of a number of existing color appearance models and equivalent luminance models in predicting brightness. None of the models performed acceptably due to a severe underestimation of the Helmholtz–Kohlrausch (H-K) effect. A modified model of perceived brightness based on CAM16, taking into account the H-K effect, is proposed. Evaluated by psychophysical experiments, the proposed model exhibits a superior performance compared to the preceding models, especially within the extensive color gamut range stipulated by BT.2020. The results help to optimize the design of laser displays with a wide color gamut and high perceived brightness. Full article
(This article belongs to the Special Issue Recent Advances in Laser Displays)
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11 pages, 2492 KiB  
Article
Influence of Mn2+ and Eu3+ Concentration on Photoluminescence and Thermal Stability Properties in Eu3+-Activated ZnMoO4 Red Phosphor Materials
by Fan Chen, Muhammad Nadeem Akram and Xuyuan Chen
Micromachines 2023, 14(8), 1605; https://doi.org/10.3390/mi14081605 - 15 Aug 2023
Viewed by 761
Abstract
The integration of trivalent europium ion (Eu3+)-doped zinc molybdate (ZnMoO4) as red phosphors in next-generation solid-state lighting (SSL) is impeded by their extended electron lifetime and suboptimal thermal stability. To overcome these limitations, we propose a co-doping approach by [...] Read more.
The integration of trivalent europium ion (Eu3+)-doped zinc molybdate (ZnMoO4) as red phosphors in next-generation solid-state lighting (SSL) is impeded by their extended electron lifetime and suboptimal thermal stability. To overcome these limitations, we propose a co-doping approach by incorporating Mn2+ and Eu3+ in ZnMoO4, aiming to improve thermal reversibility and reduce the lifetime of electron transitions. A series of Eu3+-doped ZnMoO4 and Mn2+/Eu3+-co-doped ZnMoO4 phosphor materials were synthesized via the conventional sol–gel method, and their photoluminescence properties were compared under high-temperature conditions. Experimental results indicate that the introduction of Mn2+ into Eu3+-doped ZnMoO4 leads to a decrease in quantum efficiency and electron lifetime, primarily attributed to defects within the crystal lattice and energy transfer from Eu3+ to Mn2+, resulting in enhanced non-radiative transitions. However, the addition of a small quantity of Mn2+ remarkably improves the thermal stability and reversibility of the phosphors. Consequently, this co-doping strategy presents a promising avenue for expanding the application possibilities of phosphor materials, particularly for high-power SSL applications subjected to elevated temperatures. Hence, Eu3+-only doped samples are well-suited for lighting applications due to their high IQE and excellent thermal stability. Conversely, Eu3+/Mn2+-co-doped samples show promise in applications that require a shorter electron lifetime and good reversibility. Full article
(This article belongs to the Special Issue Recent Advances in Laser Displays)
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