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        4 Wire Resistive Touch Film

        4 Wire Resistive Touch Film

        1. 4 Wire Resistive Touch Film Description

        4 wire resistive touch film comprises several layers, the most important of which are two thin, transparent electrically-resistive layers separated by a thin space. These layers face each other with a thin gap between. The top screen (the screen that is touched) has a coating on the underside surface of the screen. Just beneath it is a similar resistive layer on top of its substrate. One layer has conductive connections along its sides, the other along top and bottom. A voltage is applied to one layer, and sensed by the other. When an object, such as a fingertip or stylus tip, presses down onto the outer surface, the two layers touch to become connected at that point: The panel then behaves as a pair of voltage dividers, one axis at a time. By rapidly switching between each layer, the position of a pressure on the screen can be read.

        Resistive touch is used in restaurants, factories and hospitals due to its high resistance to liquids and contaminants. A major benefit of resistive touch technology is its low cost. Additionally, as only sufficient pressure is necessary for the touch to be sensed, they may be used with gloves on, or by using anything rigid as a finger/stylus substitute. Disadvantages include the need to press down, and a risk of damage by sharp objects. Resistive touch screens also suffer from poorer contrast, due to having additional reflections from the extra layers of material (separated by an air gap) placed over the screen.

        2. Size: 10" to 22" (OEM for custom size, MOQ limited)

        3. Touch Point: single touch

        4. Sample for testing acceptable, 3-5 days delivery time after payment confirmation.

        5. Application: MID, digital photo frame, vehicle GPS, POS, kiosk. ad displayer, ATM, inquiry machine, terminal equipment, self-service device, medical equipment, industrial equipment, game machine, education displayer, ticket machine, etc.

        6. Feature

        1).thin, easy to installation

        2).compatible with different system

        3).high accuracy and sensitivity

        4).custom, OEM & ODM

        5).widely application for POS, terminal, ad displayer, game machine, lcd monitor, etc.

        7. Specification

        General Size

        10”, 10.1”, 10.2”, 12.1”, 13.3”, 14.1”, 15”, 15.6”, 17”, 18.5”, 19”, 21”, 21.5”, 22”

        Custom Size

        10”, 10.1”, 10.2”, 12.1”, 13.3”, 14.1”, 15”, 15.6”, 17”, 18.5”, 19”, 21”, 21.5”, 22”

        Type

        Input device

        Resolution(Interpolation)

        4096*4096

        Linearity Error

        <1.5%

        Response Speed

        <10ms

        Input Method

        Finger or gloved hand (rubber ,cloth or leather)

        Touch Times

        > 1000000 times

        Touch Activation Force

        15~70g

        Surface Durability

        Meets pencil hardness 3H (per ASTM D3363)

        Light Transmission

        90%

        Operation Environment

        Operating Range: -10°C ~ 60°C

        Storage Range: -20°C ~ 70°C

        Relative Humidity

        Operating Range: 0%~90% RH (no dew falls)

        Storage Range: 0% to 95% RH (no dew falls)

        Operation Voltage

        Typical +DC 5V, +4.75V to +5.25V

        Power Supply

        USB or PS/2 Interface

        Interface

        Full Duplex USB 2.0 (Full Speed) Plug and play compatible

        Serial RS-232. Baud Rate: 9600, 8 Data Bits, 1 Stop Bit, No Parity

        Current

        5mA~25mA

        Electrostatic Endurance

        No abnormal appearance after 10kv, 100Ω, 250PF electrostatic used

        Isolation Resistance

        >20MΩ @ DC 25V

        Resistance

        300Ω< X Axis <900Ω, 200Ω< Y Axis <800Ω (Varies with different size)

        Agency Approvals

        CE, FCC, RoHs

        Operation System

        Linux/ Dos / Windows ME/95/98 / NT4.0/XP/2000/ 7 /Mac OS

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