To provide a junction structure which prevents dust from easily penetrating a display and has a cloud prevention (dew condensation prevention) function, and to provide a display having the junction structure.

In the junction structure, a claw portion 11 of a case 10 incorporating the display includes an upper claw 11a brought into contact with a top surface of a front end part of a projecting portion 21, a placing portion 11b brought into contact with a bottom surface of the front end part of the projecting portion 21, and a coupling portion 11c which couples the upper claw 11a and the placing portion 11b so that they may be disposed in opposition to each other to hold the front end part of the projecting portion 21 therebetween. In the junction structure, a first passage 40 which is formed between a top surface of the placing portion 11b and a bottom surface of the projecting portion 21 from the coupling portion side toward a front end part of the placing portion and is connected to an internal space of the case, a second passage 41 which is formed in a direction crossing the first passage 40 by an inner surface of the coupling portion of the claw portion 11a and a front surface of the front end part of the projecting portion and is connected to an external space outside the case, and a connection flow passage 42 which connects the first passage 40 and the second passage 41 are formed.

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