Touch technology is where many industrial HMI projects quietly go wrong. The panel looks right on the bench and fails in the field — with gloves, with water on the screen, or next to a variable-frequency drive. Here is the practical comparison, based on what actually breaks in deployed equipment.
Resistive (RTP): two conductive layers separated by spacer dots. Pressure pushes them together and the controller reads the resulting voltage divider. Any object that can press works — finger, gloved hand, stylus, screwdriver tip.
Projected capacitive (PCAP/CTP): a grid of transparent electrodes senses the capacitance change when a conductive object (usually a finger) approaches. It reads through a thick cover glass, supports multi-touch and gestures, and has no moving parts to wear out.
| Criterion | Resistive (RTP) | Projective capacitive (PCAP) |
|---|---|---|
| Works with thick gloves | Excellent | Requires glove-mode tuning; possible but needs validation |
| Works with any stylus / tool | Yes | No (needs conductive or active stylus) |
| Multi-touch / gestures | No | Yes (5–10 points) |
| Optical clarity | ~80–85% transmission | ~90%+ (no extra film layers) |
| Scratch & vandal resistance | Film surface can be scratched | Glass surface, IK-rated options |
| Water / condensation on screen | Unaffected | Needs water-rejection firmware |
| EMC robustness | Good | Good with proper sensor grounding and tuning |
| Cost (small sizes) | Lower | Higher |
| Sealing to IP65/IP66 | Easy (flat film) | Easy with bonded cover glass |
PCAP sensitivity is a trade-off: raise it to detect a gloved finger and you also raise susceptibility to noise and false touches. Modern controllers handle this with "glove mode" profiles and adaptive baselines, but it must be validated with the actual glove the operator wears — a thin latex glove and a winter work glove behave completely differently.
If operators reliably wear thick gloves and only need single-point presses, a 4-wire resistive panel is still the pragmatic, low-risk choice — which is why it remains common on factory equipment, agricultural machinery and older POS hardware.
For PCAP, the cover glass thickness and the air gap (or lack of it) determine sensitivity. Typical designs use 1.1–4 mm chemically strengthened glass, optionally with AR, AG (anti-glare) or AF (anti-fingerprint) treatment, bonded with OCA or OCR for optical bonding.
| Part No. | Size | Resolution | Type | Brightness | Interface | Touch | Op. temp. |
|---|---|---|---|---|---|---|---|
| DS-T070QWHW-02 | 7.0" | 800x480 | TN | 1000 cd/m² | RGB 24bit 50PIN Long FPC | CTP | -30-85 |
| DS-T070QWHW-02CA | 7.0" | 800x480 | TN | 850 cd/m² | RGB 24bit 50PIN Long FPC | CTP | -30-85 |
| DS-T070QWHW-02P | 7.0" | 800x480 | TN | 850 cd/m² | RGB 24bit 50PIN Long FPC | RTP | -30-85 |
| DS-T101HIEWA-01CP | 10.1" | 1280x800 | IPS | 850 cd/m² | LVDS 6/8bit 40PIN | CTP | -30-85 |
| DS-T156BFHWA-02CP | 15.6" | 1920x1080 | IPS | 850 cd/m² | TBD. CTP | CTP | -30-80 |
| DS-T070QWHW-01CA | 7.0" | 800x480 | TN | 500 cd/m² | RGB 24bit 50PIN Long FPC | CTP | -30-85 |
| DS-T070QWHW-01P | 7.0" | 800x480 | TN | 480 cd/m² | RGB 24bit 50PIN Long FPC | RTP | -30-85 |
| DS-T070BAHA-19CA | 7.0" | 1024x600 | IPS | 450 cd/m² | LVDS | CTP | -20-70 |
PCAP has no mechanical contact, so it has no wear mechanism and is the better choice for high-traffic public terminals. Resistive film degrades mechanically over millions of presses and can be punctured by sharp objects.
Yes, up to roughly 6 mm with a properly tuned controller, though sensitivity drops as thickness increases. For thick armoured glass we recommend a dedicated high-sensitivity controller and early prototyping.
No. It remains the right answer for glove-heavy, stylus-based, cost-sensitive or wet-environment single-touch applications, and it is immune to water on the screen in a way PCAP needs firmware to match.
Yes, with a tuned PCAP controller in glove mode, but validate with real gloves. Where single-point input is enough, resistive is lower risk and lower cost.
Touch Technology · DISEA Electronics
Touch Technology · DISEA Electronics
Touch Technology · DISEA Electronics
Touch Technology · DISEA Electronics
Need help specifying a display?
Send us your size, resolution, brightness, interface and operating temperature — our application engineers will come back with matching standard modules or a custom ODM proposal within one working day. Request a quote →