Project
| # | Title | Team Members | TA | Documents | Sponsor |
|---|---|---|---|---|---|
| 36 | Thermally Activated Display |
Amitesh Srivastava Joseph Espino Santiago Puertolas |
Hershel Rege | design_document1.pdf design_document2.pdf final_paper1.pdf other1.pdf proposal1.pdf |
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| Project Name: Thermally Activated Display Team members: Santiago Puértolas (sp24) and Joey Espino (espino2) Problem: The IQUIST wants to develop an eye-catching custom made reconfigurable display that is not a monitor. Solution: In order to make this display our team has decided to use thermo-chromic paper as it creates beautiful colors when it is activated by heat. When working with heat activated elements it is important to keep in mind that the heat needs to be dissipated fast enough so that the display can be reconfigured, in order to do this we chose to use aluminum as the support for the thermo-chromic paper along with a heatsink to cool down the display and reconfigure it. The words will be printed pixel by pixel by using resistance wire to heat up the pixels at a temperature of around 86º which would allow the material to be fully activated. A programmable circuit will be used to control all of the pixels for the display, each pixel is “on” when a voltage potential is applied across a resistance, heating the element. We will also make the display interactive by adding an array of Ultrasonic Sensors and showing an animation when a user gets close to the display. Finally, our proof of concept will be to print out a single letter on a 6 inch x 6 inch sheet of thermo-chromic material display. We initially posted this on the Web Board and received some questions. Here are our responses to the questions: "How many "heat pixels" are you thinking of having?" Depending on how the spread of the heated element affects an area, this will vary. Initially we will start with roughly ~20 heating elements for our 6 inch by 6 inch display and test how well that works. Adjustment will be made to take into consideration the resolution of the output displayed on the display. "How large are your pixels? " Our pixels will be resistors that heat up when power is delivered to it. The spread of how much area is covered by an activated heating element will depend on testing. "I've never dealt with this material before and I don't know how large your pixels are, but if you are talking about 86 degrees Celsius (you only said 86 degrees) I wonder if heat may "drift" from one pixel to the next. Is this something you have already thought about?" Yes. The temperature although will most likely vary around 90 degrees Fahrenheit (this is something we will have to test, the thermo-chromic surface we are using sells at different activation temperatures, so we will find one that works at an ideal range). If one heated element effects an area that is supposed to be covered by a different element, we will space them out until we get a desired output. |
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