Comparison of resistive touch screen and capacitive touch screen

Capacitive touch screen and resistive touch screen are mainly in touch sensitivity, accuracy, cost, multi-touch and single-touch, damage resistance, cleanliness, sunlight visual effect these aspects of the difference.

Comparison of resistive touch screen and capacitive touch screen

Touch sensitivity
1, RTP: need to use pressure to make contact with the various layers of the screen, you can use your fingers (with gloves), nails, stylus, etc. to operate.
2, CTP: from the charged finger surface of the subtle contact can also activate the capacitive sensing system below the screen. Non-living objects, nails, gloves are not valid. Handwriting recognition is more difficult.

Accuracy
1, RTP: accuracy of at least a single display pixel, can be seen when using a stylus. Convenient handwriting recognition, help in the use of small control units under the interface to operate.
2, CTP: theoretical accuracy can reach a few pixels, but in practice will be limited by finger contact area. So much so that it is difficult for dry users to accurately click on the small dry 1cm² target.

Cost
1, RTP: the cost is super high.
2, CTP: different manufacturers of capacitive screen price is 10% to 50% more expensive than the resistive screen.

Multi-touch feasibility
1,RTP: currently only single-point touch.
2, CTP: up to 10 points to support touch.

Damage resistance
1, RTP: the fundamental characteristics of the resistive screen determines its top is soft and needs to be able to press down. This makes the screen very easy to produce scratches. Resistive screens require protective film as well as relatively more frequent calibration. The upside is that resistive touch screen devices that use plastic layers are generally less fragile and less likely to break.
2,CTP: the outer layer can use glass. This is not so indestructible, and the possibility of shattering type under severe impact, but the glass copes better with daily touches and smudges.

Cleaning

1,RTP: by dry can be operated using a stylus or fingernails, less likely to leave fingerprints, oil stains and bacteria on the screen.

2, CTP, to use a number of touch screen.capacitive touch screen, to touch with several fingers, but the glass layer is easy to clean.

Environmental adaptability

1,RTP: can work normally at a temperature of -15℃ to +45℃, no requirement for humidity.

2,CTP: Typical operating temperature is between 0° and 35°, and requires at least 5% humidity.

Visible effect in sunlight
1,RTP: The extra screen level reflects a lot of light.

2,CTP: The surface also reflects a portion of the light.

Date:2022-9-14 Author:Ewv LCD

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