An illuminating display window has a window pane and a graphic element including fluorescent material. The graphic element has a major surface facing forward and a perimeter surface extending transverse to the major surface. An electromagnetic radiation source is configured to emit electromagnetic radiation to the perimeter surface of the graphic element. The radiation includes electromagnetic radiation having a wavelength in a non-visible spectrum. The graphic element fluoresces in response to the non-visible radiation to transmit visible light to an observer in front of the window pane. To form the graphic element, fluorescent ink can be deposited on a panel in a predefined pattern or a fluorescent panel could be shaped to have a predefined shape.

An illuminating display window has a window pane and a graphic element including fluorescent material. The graphic element has a major surface facing forward and a perimeter surface extending transverse to the major surface. An electromagnetic radiation source is configured to emit electromagnetic radiation to the perimeter surface of the graphic element. The radiation includes electromagnetic radiation having a wavelength in a non-visible spectrum. The graphic element fluoresces in response to the non-visible radiation to transmit visible light to an observer in front of the window pane. To form the graphic element, fluorescent ink can be deposited on a panel in a predefined pattern or a fluorescent panel could be shaped to have a predefined shape.

Provided is a refrigerator. The refrigerator includes a main body defining a storage space, a cryogenic freezing compartment provided in the storage space, and a thermoelectric module assembly disposed at one side of the cryogenic freezing compartment so that the cryogenic freezing compartment is cooled to a temperature less than that of the storage space. The cryogenic freezing compartment includes a cryogenic case into which an insulation material is filled to be thermally insulated from the storage space and in which a cryogenic freezing space is defined, a case door opening and closing the cryogenic case, and a rail assembly connecting the cryogenic case to the case door and extending and contracted in multi-stages to allow the case door to be slid to be inserted and withdrawn. The rail assembly is mounted on the cryogenic case outside the cryogenic freezing space.

Provided is a refrigerator. The refrigerator includes a main body defining a storage space, a cryogenic freezing compartment provided in the storage space, and a thermoelectric module assembly disposed at one side of the cryogenic freezing compartment so that the cryogenic freezing compartment is cooled to a temperature less than that of the storage space. The cryogenic freezing compartment includes a cryogenic case into which an insulation material is filled to be thermally insulated from the storage space and in which a cryogenic freezing space is defined, a case door opening and closing the cryogenic case, and a rail assembly connecting the cryogenic case to the case door and extending and contracted in multi-stages to allow the case door to be slid to be inserted and withdrawn. The rail assembly is mounted on the cryogenic case outside the cryogenic freezing space.

A secure product dispenser assembly comprises a base portion having a first end and a second end, and being configured to hold a plurality of units of product. The base portion comprises a bottom, a first divider coupled to the bottom, and a second divider positioned opposite the first divider and coupled the bottom. A top portion is configured to adjustably couple to the base portion and a dispenser portion is coupled to the top portion and positioned at the first end of the base portion. The dispenser portion is configured to rotate between an open position to enable removal of one unit of product from the first end of the base, and a closed position inhibiting removal of the one unit of product from the first end of the base.

Provided is a refrigerator. The refrigerator includes a main body defining a storage space, a cryogenic freezing compartment provided in the storage space, and a thermoelectric module assembly disposed at one side of the cryogenic freezing compartment so that the cryogenic freezing compartment is cooled to a temperature less than that of the storage space. The cryogenic freezing compartment includes a cryogenic case into which an insulation material is filled to be thermally insulated from the storage space and in which a cryogenic freezing space is defined, a case door opening and closing the cryogenic case, and a rail assembly connecting the cryogenic case to the case door and extending and contracted in multi-stages to allow the case door to be slid to be inserted and withdrawn. The rail assembly is mounted on the cryogenic case outside the cryogenic freezing space.

Provided is a refrigerator. The refrigerator includes a main body defining a storage space, a cryogenic freezing compartment provided in the storage space, and a thermoelectric module assembly disposed at one side of the cryogenic freezing compartment so that the cryogenic freezing compartment is cooled to a temperature less than that of the storage space. The cryogenic freezing compartment includes a cryogenic case into which an insulation material is filled to be thermally insulated from the storage space and in which a cryogenic freezing space is defined, a case door opening and closing the cryogenic case, and a rail assembly connecting the cryogenic case to the case door and extending and contracted in multi-stages to allow the case door to be slid to be inserted and withdrawn. The rail assembly is mounted on the cryogenic case outside the cryogenic freezing space.

An inventory management system according to an embodiment comprises: a weight measurer configured to measure a weight of a shelf on which an item can be placed; and an RF tag configured to transmit a wireless signal including information related to the weight measured by the weight measurer in response to a read request from a wireless device, wherein the RF tag includes a transceiver configured to generate power by a received electromagnetic wave or magnetic field and transmit the wireless signal to the wireless device by using the generated power, a storage configured to store therein the information related to the weight measured by the weight measurer, and a controller configured to cause the transceiver to transmit the wireless signal including the information related to the weight stored in the storage to the wireless device.

A system to display information using a display shelf of a retailer may include a first display configured to be attached to a first edge portion of the display shelf and to display information related to a first product. A second display may be configured to be attached to a second edge portion of the display shelf and to display information related to a second product. The first display and the second display can be configured to have a height similar to a height of the first and the second edge portion of the shelf. The first display and the second display may also be configured to display information related to a third product as if the first display is continuously connected to the second display as an extended display.

A storage device having a cylindrical housing with a first end, a second end and cylindrical side, wherein the ends are closed and the cylindrical side has one or more apertures. There is a cylindrical cover for each of the one or more apertures that slidably fit over the cylindrical side of the cylindrical housing and able to slide about the cylindrical side exposing or covering the one or more apertures.