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 panel tray includes: a main body part including outer walls extending in a first direction and a second direction intersecting the first direction and defining a space on a lower surface thereof, a plurality of slots disposed respectively at corners where one sidewall of the outer walls extending in the first direction and another sidewall of the outer walls extending in the second direction meet each other, where the slots include a plurality of guide parts. Each of the guide parts includes a first guide part extending in the first direction, and a second guide part intersecting the first guide part and extending in the second direction, and each of the slots includes an alignment mark defined on an upper surface of one of the first guide part and the second guide part.

Abstract: A tray for carrying a display panel is disclosed, and the tray includes a base configured to support the display panel, supporting members on the base and each having an inner surface corresponding to two adjacent sides of each of corner portions of the display panel, and buffering members coupled to the inner surface of each of the supporting members and configured to contact the two adjacent sides of the display panel, wherein the buffering members are spaced apart from the inner surface of each of the supporting members by a set distance.

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 for carrying a display panel is disclosed, and the tray includes a base configured to support the display panel, supporting members on the base and each having an inner surface corresponding to two adjacent sides of each of corner portions of the display panel, and buffering members coupled to the inner surface of each of the supporting members and configured to contact the two adjacent sides of the display panel, wherein the buffering members are spaced apart from the inner surface of each of the supporting members by a set distance.

Abstract: A cassette includes a base plate in which first and second holes are defined at both opposite edges thereof, a protector which is coupled to the first hole disposed at the both opposite edges of the base plate, is placed in a direction perpendicular to a plane of the base plate, and third holes, and a rib member which includes a rib protruding from the protector, a second protrusion protruding in a direction from the rib to be coupled to the second hole, and third protrusions protruding in another direction from the rib to be coupled to the third holes, where the third holes of the rib member are defined to slope at a predetermined angle to a thickness surface of the protector such that the rib is at a predetermined angle to a plane of the protector, and the third protrusions are coupled to the third holes.

Abstract: A cassette includes a base plate in which first and second holes are defined at both opposite edges thereof, a protector which is coupled to the first hole disposed at the both opposite edges of the base plate, is placed in a direction perpendicular to a plane of the base plate, and third holes, and a rib member which includes a rib protruding from the protector, a second protrusion protruding in a direction from the rib to be coupled to the second hole, and third protrusions protruding in another direction from the rib to be coupled to the third holes, where the third holes of the rib member are defined to slope at a predetermined angle to a thickness surface of the protector such that the rib is at a predetermined angle to a plane of the protector, and the third protrusions are coupled to the third holes.

Abstract: An apparatus for assembling lamps that automatically installs lamps into a container includes a lamp arrangement unit including a retaining-stage formed to receive a plurality of lamps, and a lamp press-fitting unit including grippers that holds lamps positioned on the retaining-stage to move lamps, a body press-fitting portion that positions bodies of lamps into a container, and a lead press-fitting portion that positions leads of lamps into the container. A method of assembling lamps uses the apparatus.