Touch screen have been integrated into the people's life, can be seen everywhere in mobile devices with finger skated friend. But capacitance, resistance type, or infrared type etc a variety of screen have different features, which is better or worse? Let this group chart for we decryption "truth" it.
Firstly, as to compare object three types of touch screen mobile phone products represent:
Resistive Touch screens: samsung Messager Touch, samsung Instinct, HTCTouch Diamond and LGDare etc;
Capacitance type touch screen: huawei Ascend, sanyo Zio, apple iPhone, HTCHero, Palm Pre, and Blackberry Storm,
Infrared touch screen: samsung U600 and NeonodeN2, etc.
The second is their way of working, price and screen material:
Resistive touch screens: by the multilayer material compound and into, when touch screen surface under pressure, top and bottom contact between produced the corresponding signal change current, through the operation to determine position, complete the corresponding operation, the cost is low.
Capacitance type touch screen: general by glass material is made. Finger touch screen, the human body to the electric field fingers and screen formed the coupling capacitance, the current from the four corners of the electrode capacitance screen flow, calculation can reach the conclusion that position. This screen cost center.
Infrared touch screen: the same made by glass material. Divided into thermal and optical two. The former need certain temperature contact screen, the latter through the sensor to test the invisible beam, according to the transverse longitudinal axis calculation touch position. This kind of screen the highest cost.
The contrast is input mode, and outdoor visual effect:
Resistive touch screens: can support the fingers, touch pen, even gloves touch, but outdoor visual effect is poorer.
Capacitance type touch screen: can only support finger touch, even touch pen can replace, the outdoor visual effect is good.
Infrared touch screen: can support the fingers, touch pen, even gloves touch, outdoor visual effect is good, but due to strong light environment affects the accuracy of the screen.
Finally compare multi-point touch ability, and durability.
Resistive touch screens: does not support multi-point touch, may appear scratch, and over time, appear wear away, even need to change.
Capacitance type touch screen: support multi-point touch, due to screen for glass material, so need to prevent break.
Infrared touch screen: support multi-point touch, as glass material, beware of broken.
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