(Sun Microsystems, Inc.)(1997).iso/products/Trident/trident.gif)
Touch Screen| TOUCH SCREEN TECHNOLOGY | ||||
|---|---|---|---|---|
| CHARACTERISTICS | RESISTIVE | CAPACITIVE | SURFACE WAVE | SCANNING INFRARED |
| Touch Resolution | 4000x4000 points per side of screen | 1024x1024 points per side of screen | 32 points per inch per side of screen | 1/8" between points per side of screen |
| Optical Clarity (clear) | 92% Transmission | 95% Transmission | 97% Transmission | 100% Transmission |
| Optical Clarity with Anti-Glare (AG) | 85% Transmission | 88% Transmission | 88% Transmission | N/A |
| Sizes Available | 9" through 21" Flat & Custom sizes available | 9" through 21" Flat & Custom sizes available (e.g., 27") | 9" through 21" Flat & Custom sizes available | 9" through 21" for selected monitors, many flat panels supported |
| Hardware cost (qty 1-9) - includes TS, Ctrlr, cables & non-Unix TS driver SW | $890 to $1020 Same for clear or Lite AG |
$722 to $877 Same for clear or Lite AG |
$880 to $1030 Add $30 for Lite AG |
$595 to $830 All panels |
| Stylus use possible - beyond finger | No limitation. Can use any stylus |
Need special conductive stylus | Soft pliable stylus, like pencil eraser | No limitation. Can use any stylus |
| Glove Use Possible | Any type glove | Only very thin latex glove | Any type glove | Any type glove |
| Durability | Durable | Very durable | Very durable | Very durable |
| Can TS be gasketed in Ruggedized enclosures? | Yes, up to NEMA 12 | Yes, for NEMA 12 & 4 | Yes, up to NEMA 12 on some monitors | Yes, for NEMA 12 & 4 |
| Parallax problems? | None | None | None | None if flat screen monitor. Parallax increases with curvature |
| Response time | Very rapid | Very rapid | Rapid | Very rapid |
| Warranty | 3 to 5 years | 5 years | 5 years | 5 years |
| Other factors affecting performance of TS | TS surface can be damaged by vandalism | Use of gloves yields inconsistent response | Water or oil drops on screen degrade response | Special custom bezel required for most monitors |