Abstract: Provided is a technology for increasing accuracy of position estimation by estimating a position of a signal source based on an error due to altitudes of a sensor and a signal source and an error due to a pitch of an aircraft as well as an error due to curvature of the earth. At this time, a position estimation method may include receiving measurement data from a plurality of sensors, estimating first position data of the signal source based on the measurement data, identifying an altitude error of the first position data, and estimating second position data that is data obtained by correcting the first position data based on the altitude error.

Abstract: An electroluminescent display device includes an electroluminescent display device includes a substrate; a first pixel row on the substrate including a first plurality of pixels arranged along a first direction; a second pixel row on the substrate including a second plurality of pixels arranged along the first direction, the second pixel row being spaced apart from the first pixel row in a second direction; a first groove between the first and second pixel rows; and a light emitting diode in each pixel of the first and second pixel rows, wherein the first groove includes a first portion at one end of the first pixel row, a second portion at the other end of the first pixel row and a third portion between the first and second portions, and wherein third portion is smaller than the first portion and greater than the second portion.

Abstract: The present invention relates to a refrigerator, and particularly, to a refrigerator characterized by comprising: a main body which includes an outer casing and an inner casing, wherein the outer casing has an opening formed in a back panel thereof, and the inner casing is provided within the outer casing and provides, in an upper part thereof, an ice-making compartment and a refrigerator compartment, and a freezer compartment in a lower part thereof; an evaporator casing which is provided between the outer casing and the inner casing and forms an installation space in communication with the ice-making compartment and the opening; an evaporator which is installed in the installation space via the opening and provides cold air to the ice-making compartment; and an insulating cover which opens and closes the opening. Accordingly, the evaporator can be installed from the outside of the back panel of the main body, thus allowing the installation space of the evaporator casing to remain securely sealed.

Abstract: A packing box according to an embodiment includes a lower body including a bottom portion and a lower wall portion extending upward from the bottom portion; and an upper body including a cover portion and an upper wall portion extending downward from the cover portion defining an inner space with the lower body in case that combined with the lower body. The upper wall portion includes at least one groove in which an edge portion of a display device is inserted, and the cover portion includes at least one opening abutting with the at least one groove.

Abstract: A tray module includes a tray in which a plurality of display device components are alternately stackable with a plurality of protective sheets. Each of a protective sheet among the plurality of protective sheets includes: a first polymer layer including a first polymer resin which is foamed, and top and bottom surfaces opposite to each other; a second polymer layer on each of the top and bottom surfaces of the first polymer layer, the second polymer layer including a second polymer resin; and a paper layer defining an outer surface of the protective sheet.

Abstract: A tray module includes a tray in which a plurality of display device components are alternately stackable with a plurality of protective sheets. Each of a protective sheet among the plurality of protective sheets includes: a first polymer layer including a first polymer resin which is foamed, and top and bottom surfaces opposite to each other; a second polymer layer on each of the top and bottom surfaces of the first polymer layer, the second polymer layer including a second polymer resin; and a paper layer defining an outer surface of the protective sheet.

Abstract: A substrate storage container includes a body including a bottom surface and a plurality of sidewalls extending perpendicularly from the bottom surface in a first direction to cooperatively provide an accommodating space for receiving a substrate, a first engaging portion provided in at least one sidewall of the plurality of sidewalls of the body and including a plurality of first positioning latching members which is arranged toward the accommodating space in a second direction perpendicular to the first direction, and a first positioning block detachably engaged with the first engaging portion and including a second positioning latching member which is engaged with any one of the plurality of first positioning latching members to adjust a capacity of the accommodating space corresponding to an engagement position of the second positioning latching member in the second direction.

Abstract: A substrate storage container includes a body including a bottom surface and a plurality of sidewalls extending perpendicularly from the bottom surface in a first direction to cooperatively provide an accommodating space for receiving a substrate, a first engaging portion provided in at least one sidewall of the plurality of sidewalls of the body and including a plurality of first positioning latching members which is arranged toward the accommodating space in a second direction perpendicular to the first direction, and a first positioning block detachably engaged with the first engaging portion and including a second positioning latching member which is engaged with any one of the plurality of first positioning latching members to adjust a capacity of the accommodating space corresponding to an engagement position of the second positioning latching member in the second direction.