DSI Multitouch construction – Part 3

Over the weekend I made a lot more progress on my multitouch coffee table. I also discovered some issues – firstly the original backlight emits way too much infra-red light so I am going to have to make a custom one out of ultra-bright LED strips, and secondly I don’t seem to be getting any blobs when placing a layer of glass or clear acrylic above the Endlighten. I get great blobs when touching the Endlighten directly, but I want to avoid this since it scratches easily.  More photos below.

Gluing and soldering the IR LEDs into aluminum rails… all 96 of them

The box so far

The power ‘terminal’ for the backlight, and the CCFL tubes in the bottom of the box

All the TV circuitry temporarily mounted in place, all the placement turned out great… the FFC cables brought no issues at all!

TV turned on… here I have no diffuser behind the LCD so you can clearly see the back light and the inside of the box

PS3 Camera poking through back light

Wiring the LEDs

Mounting PC parts –

  • MB: Asus P5E-Deluxe
  • CPU: Core2 Quad 2.8Ghz
  • RAM: 4GB 1066 DDR2
  • PSU: Coolmaster 460w
  • Graphics: Radeon 3850 (I think, though not pictured here)

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