Brief Introduction
4-wire resistive touch screen is resistive family, the most widely used and most popular one . It consists of a line ( glass or film material ) conductive ITO layer and the upper line ( film material ) conductive ITO layer. Slightly separated by an insulating middle point , when the touch screen surface without pressure , up and down the line is open. Once the pressure applied to the touch screen surface . Vertical line becomes conductive , the controller circuit driving voltage applied to the conductive layer of ITO in the X coordinate direction , the line through the probe the conductive layer of ITO on the detection voltage of the X direction, whereby the contact point of the projected X coordinates. By changing the direction of the applied voltage to the controller , similarly to the measured Y coordinate of the contact , the contact position to clear .
Specifications
Circuit level : 5V (DC), 35mA
Surface hardness : 3H
Light transmittance: bright surface material > 83% matte material : > 78%
Life: 1 Percussion life:> 1 million times ( single point click ) 2 strokes life> 100,000 times
Contact bounce time : <5ms
Operating temperature : -10 ℃ ~ +60 ℃ ( Humidity : 20 % ~ 85% , non-condensing water droplets )
Storage temperature : -20 ℃ ~ +70 ℃ ( Humidity : 20% ~ 90% , non-condensing water droplets )
Resolution: 2048 * 2048
Linearity <1.5% ( special needs can be <1.0% )
Operating pressure : 10g-100g ( tip or finger touch )
Glass thickness : 0.7mm, 1.1mm, 1.8mm, 3.0mm
Glass Category: chemically strengthened glass , riot glass.
Product Features
Reliable, economical and practical, widely used.
Able to identify any contact media such as a finger ( with gloves or without ) , pens , credit cards and other input signals.
Lead using FPC ( flexible printed circuit board material ) is smaller than the resistance of PET material used by other manufacturers value , good flexibility .
Line insulation little visual effect, now we can do the minimum insulation point Φ 0.035mm, far ahead of other vendors .
Touch screen surface shiny , matte, anti-glare variety of materials , matting , anti-Newton ring and process for selection
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External dimensions: 155 * 88 mm
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Viewing area: 139 * 79 mm
Package include
1 x Resistive touch screen for 6.2 inch LCD Monitor for Raspberry Pi
1 x Drive Module
1 x USB Cable
Note: This listing is not included the 6.2 inch lcd monitor display for raspberry pi