This fluorescence observation method is a method of observing a living organism into which a fluorescent dye is injected. The method includes the steps of: irradiating the living organism with excitation light including a wavelength for exciting the fluorescent dye using a light irradiation means, acquiring a first fluorescence image of the living organism generated by the irradiation with the excitation light using an image acquisition means, specifying an observation object in the living organism on the basis of the first fluorescence image; acquiring a second fluorescence image of the observation object generated by the irradiation with the excitation light using the image acquisition means; and specifying a linear fluorescence pattern appearing in the second fluorescence image.

This fluorescence observation method is a method of observing a living organism into which a fluorescent dye is injected. The method includes the steps of: irradiating the living organism with excitation light including a wavelength for exciting the fluorescent dye using a light irradiation means, acquiring a first fluorescence image of the living organism generated by the irradiation with the excitation light using an image acquisition means, specifying an observation object in the living organism on the basis of the first fluorescence image; acquiring a second fluorescence image of the observation object generated by the irradiation with the excitation light using the image acquisition means; and specifying a linear fluorescence pattern appearing in the second fluorescence image.

The present invention provides charge transporting molecular glass mixtures, luminescent molecular glass mixtures, or combinations thereof comprising at least two nonpolymeric compounds each independently corresponding to the structure (R.sup.1Y.sup.1).sub.p[(Z.sup.1Y.sup.2).sub.mR.sup.2Y.sup.3].sub.nZ.sup.2Y.sup.4R.sup.3 wherein m is zero or one; n is zero up to an integer at which said compound starts to become a polymer; p is an integer of from one to eight; each R.sup.1 and R.sup.3 is independently a monovalent aliphatic or cycloaliphatic hydrocarbon group having 1 to 20 carbon atoms, an aromatic group or a multicyclic aromatic nucleus; R.sup.2, Z.sup.1, and Z.sup.2 each independently represent multivalent aliphatic or cycloaliphatic hydrocarbon groups having 1 to 20 carbon atoms or an aromatic group; and Y.sup.1, Y.sup.2, Y.sup.3 and Y.sup.4 each independently represent a triple bond, a double bond, or a single bond link.

A device for charging photoluminescent objects is disclosed herein. The device is particularly used for charging phosphorescent, or glow-in-the-dark flying discs. In some embodiments, the device includes a body having a disc-like shape with a generally planar profile; a light source disposed within the body and configured to emit a light able to be absorbed by phosphors in the photoluminescent flying discs; and a power supply port configured to connect the light source with an external power supply. In some embodiments, the external power supply is a portable battery. The device is preferably able to charge two photoluminescent flying discs simultaneously.

Specific compounds, a material, preferably an emitter material, may be suitable for an organic electroluminescence device, and be of formula (I):

##STR00001##

An organic electroluminescence device may include such compounds. An electronic equipment may include such an organic electroluminescence device. A light emitting layer may include at least one host and at least one dopant, the dopant including at least one of such compounds. Such compounds may be used in an organic electroluminescence device.

Provided are a phosphor-containing capable of suppressing deterioration of phosphors and can be manufactured with high efficiency and a backlight unit. Specifically, provided is a phosphor-containing film, including a first substrate film; and a phosphor-containing layer at which a plurality of regions containing phosphors, which, if exposed to oxygen, deteriorate by reacting with the oxygen, are discretely disposed on the first substrate film, and at which a resin layer having an impermeability to oxygen is disposed between the discretely disposed regions containing phosphors, in which a width S of the resin layer between the regions containing phosphors is 0.01S<0.5 mm, and wherein a ratio of a volume Vp of the regions containing phosphors, to a sum of the volume Vp and a volume Vb of the resin layer in the phosphor-containing layer, is 0.1Vp/(Vp+Vb)<0.9.

Provided are a phosphor-containing capable of suppressing deterioration of phosphors and can be manufactured with high efficiency and a backlight unit. Specifically, provided is a phosphor-containing film, including a first substrate film; and a phosphor-containing layer at which a plurality of regions containing phosphors, which, if exposed to oxygen, deteriorate by reacting with the oxygen, are discretely disposed on the first substrate film, and at which a resin layer having an impermeability to oxygen is disposed between the discretely disposed regions containing phosphors, in which a width S of the resin layer between the regions containing phosphors is 0.01S<0.5 mm, and wherein a ratio of a volume Vp of the regions containing phosphors, to a sum of the volume Vp and a volume Vb of the resin layer in the phosphor-containing layer, is 0.1Vp/(Vp+Vb)<0.9.

Described herein are devices, compositions, and methods for improving color discernment.

A quantum rod, a synthesis method of the quantum rod and a quantum rod display device are discussed. The quantum rod according to an embodiment includes a core, a first shell covering the core, and a second shell covering a side of the first shell. In the quantum rod, a first thickness of the first shell is greater than a second thickness of the second shell, and a first length of the first shell is smaller than a second length of the second shell.

A quantum rod, a synthesis method of the quantum rod and a quantum rod display device are discussed. The quantum rod according to an embodiment includes a core, a first shell covering the core, and a second shell covering a side of the first shell. In the quantum rod, a first thickness of the first shell is greater than a second thickness of the second shell, and a first length of the first shell is smaller than a second length of the second shell.