A New Xenon Plasma Flat Fluorescent Lamp Enhanced with MgO Nano-Crystals for Liquid Crystal Display Applications

Abstract

Nano-sized MgO single crystal powders have recently been reported to emit ultraviolet by stimulation of electrons in a vacuum. In this study, nanocrystalline MgO powders were applied to a xenon plasma flat fluorescent lamp (FFL) for a liquid crystal display backlight to improve its emission efficiency through the extra ultraviolet from the nano-MgO crystals. For comparison, a MgO nano-thin film was applied directly on the phosphors inside a lamp panel through e-beam evaporation. Adding MgO nano-crystal powders to the phosphors improved the luminance and efficiency of FFLs by around 20% and MgO nano-crystal coverage of 40% of the phosphor provided the best FFL emission characteristics; however, application of MgO thin film to the phosphors degraded the emission characteristics, even compared to FFLs without MgO. This was due to insufficient ultraviolet stimulation of the phosphors and the crystallinity and low secondary electron coefficient of the MgO.

Assessment of pulmonary toxicity of MgO nanoparticles in rats

“…As the production and applications of nanomaterials increase, exposure to these NPs also increase, which may cause serious deleterious effects in occupational settings. Nanocrystalline MgO (3 nm), used for the production of Nabumetone, removes traces of toxins (Klabunde et al, 1996), fluoride, nitrate ions, and so forth, in tube well water (Nagendra Rao, 2003), improves luminous efficiency through extra UV emission (Lee et al, 2010), catalyst in Meerwein-Ponndorf-Verley reduction of cyclohexanone into cyclohexanol (Heidari et al, 2009), and for the support of nickel catalyst in the reforming of methane to produce syngas, a humidity sensor, and in antimicrobial food packaging (Nanologue, 2006;ElAmin, 2007).…”

Antioxidant status in MgO nanoparticle-exposed rats

“…As the production and application of NMs increases, exposure to these nanoparticles also increases, which may cause serious deleterious effects in occupational settings. Nanocrystalline magnesium oxide (MgO; *3 nm) is used for the production of Nabumetone, removes traces of toxins (Klabunde et al, 1996), fluoride, nitrate ions, and so on, in well water (Nagendra Rao, 2003), improves luminous efficiency through extra ultraviolet (UV) emission (Lee et al, 2010), acts as catalyst in Meerwein-Ponndorf-Verley, reduces cyclohexanone to cyclohexanol (Aramendia et al, 2001), and used for supporting nickel catalyst in the reforming of methane to produce syngas, used as a humidity sensor, and in antimicrobial food packaging (ElAmin, 2007). There is a serious lack of information on their impact on human health and the environment, despite their wide applications.…”

Optical Characteristics of a Flexible Back-Light Unit with Plasma Discharge Clusters

“…The characteristics of a BLU generally depend on variables such as the light guiding plate, the reflector, the pattern of the prism sheet, and the arrangement of light sources [5]. [6].…”