A display is provided for an aerosol-generating device, the display including: a notification window; and a nano-photonic material extending over a front surface of the notification window, the nano-photonic material being configured to, in response to a light wave comprising at least one predetermined wavelength backlighting the notification window and being incident on the nano-photonic material, increase an amplitude of the at least one predetermined wavelength and emit therefrom a light wave comprising the at least one predetermined wavelength with the increased amplitude. An aerosol-generating device including the display is also provided.

A light-emitting sign device according to the present invention comprises: a solar cell; a battery module comprising at least one battery in which power generated by the solar cell is stored; a light-emitting module for emitting light by the power supplied from the battery; a front panel optically coupled to the light-emitting module; and a controller for applying, to the light-emitting module, a target mode determined, from among driving modes, on the basis of an average value of solar cell voltages measured for a certain period with respect to the solar cell and a voltage value of a battery voltage measured at a certain time with respect to the battery module.

A light-emitting sign device according to the present invention comprises: a solar cell; a battery module comprising at least one battery in which power generated by the solar cell is stored; a light-emitting module for emitting light by the power supplied from the battery; a front panel optically coupled to the light-emitting module; and a controller for applying, to the light-emitting module, a target mode determined, from among driving modes, on the basis of an average value of solar cell voltages measured for a certain period with respect to the solar cell and a voltage value of a battery voltage measured at a certain time with respect to the battery module.

The present invention provides a method of setting light emission control of each light emission tool in an area more easily. The method of setting light emission control of each tool in an area of the present invention includes: a light emitting step of transmitting a freely-selected ID signal (S.sub.n) to a plurality of tools in an area and emit light in response to receipt of corresponding ID signals to cause a tool (E.sub.n) that has received the signal (S.sub.n) to emit light; an imaging step of acquiring a light emission image (E.sub.n) of the area after the signal (S.sub.n) has been transmitted; a determining step of determining a position of the tool (E.sub.n) that emitted light in the area based on the image (E.sub.n); and a storing step of storing the position of the tool (E.sub.n) in the area and the corresponding signal (S.sub.n).

The present invention provides a method of setting light emission control of each light emission tool in an area more easily. The method of setting light emission control of each light emission tool in an area of the present invention includes: a light emitting step of transmitting a freely-selected ID signal (S.sub.n) to a plurality of light emission tools that are randomly disposed in an area and emit light in response to receipt of corresponding ID signals to cause a light emission tool (E.sub.n) that has received the ID signal (S.sub.n) to emit light; an imaging step of acquiring a light emission image (E.sub.n) of the area after the ID signal (S.sub.n) has been transmitted; a determining step of determining a position of the light emission tool (E.sub.n) that emitted light in response to receipt of the

ID signal (S.sub.n) in the area based on the light emission image (E.sub.n); and a storing step of storing the position of the light emission tool (E.sub.n) in the area and the corresponding ID signal (S.sub.n) in association with each other.

Wavelength-selective films are visibly apparent under the selective wavelength. Wavelength-selective films typically reflect off axis the selected wavelength and therefore can provide high-contrast against a background when applied in a pattern on a substrate. However, it is difficult to apply unique patterned embedded images from film. Disclosed is a cost-effective method and construction of a patterned wavelength-selective image to a substrate. In the disclosed wavelength-selective image, wavelength-selective film particles are applied to an adhesive pattern to create the wavelength-selective image.

A solar light assembly is configured for illuminating a corrugated sign. The assembly comprises a solar panel, a battery, and a printed circuit board electrically connected to the battery and to the solar panel. An LED light is disposed on the printed circuit board, which is curved to direct the light onto a printed surface of the sign. A sign attachment component attaches the assembly to the corrugated sign. The sign attachment component may be one or more spears configured to be inserted into flutes of the corrugated sign.

A solar light assembly is configured for illuminating a corrugated sign. The assembly comprises a solar panel, a battery, and a printed circuit board electrically connected to the battery and to the solar panel. An LED light is disposed on the printed circuit board, which is curved to direct the light onto a printed surface of the sign. A sign attachment component attaches the assembly to the corrugated sign. The sign attachment component may be one or more spears configured to be inserted into flutes of the corrugated sign.

A solar light assembly is configured for illuminating a corrugated sign. The assembly comprises a solar panel, a battery, and a printed circuit board electrically connected to the battery and to the solar panel. An LED light is disposed on the printed circuit board, which is curved to direct the light onto a printed surface of the sign. A sign attachment component attaches the assembly to the corrugated sign. The sign attachment component may be one or more spears configured to be inserted into flutes of the corrugated sign.

A solar light assembly is configured for illuminating a corrugated sign. The assembly comprises a solar panel, a battery, and a printed circuit board electrically connected to the battery and to the solar panel. An LED light is disposed on the printed circuit board, which is curved to direct the light onto a printed surface of the sign. A sign attachment component attaches the assembly to the corrugated sign. The sign attachment component may be one or more spears configured to be inserted into flutes of the corrugated sign.