**4. Conclusions**

Throughout this work, two types of tests were performed with sighted and visually impaired users to assess a method to convey depth information by using temperature cues. The first test showed that warm and cold temperatures can be used as cues to communicate to the user how near or far the features of an artwork are. Based on these results, a complete thermal display prototype was designed and developed. Similarly, a relief artwork was designed and installed on top of the prototype, which was used for performing the final test. This final test's results proved that thermal interaction is a proper way of conveying depth information of the artwork to the VIP. This is an addition to the current technologies which, as was seen above, used to communicate the depth of the features of an artwork either by using audio, or by adding depth into a tactile model by extruding the features. The addition of thermal interaction as a way of communicating depth can open the door to many new ways of experiencing art for VIP. Moreover, the developed thermal display system can be used for adding thermal interaction to any type of paper-based relief artwork, not only by using the thermal cues as a substitute for depth, but also by giving them another role, such as expressing color warmness and color coolness, or for making hot objects (such as the sun) warm and cold objects (such as the water) cold.
