The present application is based on, and claims priority from JP Application Serial Number 2019-056100, filed Mar. 25, 2019, the disclosure of which is hereby incorporated by reference herein in its entirety.

BACKGROUND

1. Technical Field

The present disclosure relates to a wearable display device that presents a virtual image or the like to an observer.

2. Related Art

As a wearable display device, a device having an eyeglass appearance, and having an image display unit built in that includes a light emitting element in an optical unit disposed on a head side of a wearer is known (International Publication No. 2015/083316 Specification). In the device of International Publication No. 2015/083316 Specification, a sheet-shaped electrothermal heating member that dissipates heat from the image display unit to a housing is provided, and a heat dissipation side of the electrothermal heating member is adhered to an inside surface of a housing unit that forms an outer surface of the housing.

In the device of International Publication No. 2015/083316 Specification, heat from the image display unit can be efficiently transferred to the housing unit by the electrothermal heating member, but when the housing unit is heated by the image display unit or the like, cooling efficiency of the image display unit decreases, and it is conceivable that an inside of the housing is likely to be filled with heat.

SUMMARY

A wearable display device in an aspect of the present disclosure includes a display element, an outer packaging case configured to house the display element, and a heat dissipation sheet configured to conduct heat from the display element to the outer packaging case, wherein the heat dissipation sheet extends outward through an opening provided in the outer packaging case, and is stuck at a side surface of the outer packaging case.

