IQBoard

touch screen display not working

touch screen display not working.The resistive touch screen (Figure 1 ) is controlled by pressure sensing. The main part is a multi-layer composite film screen that closely matches the display surface. It consists of two conductive layers. It uses a hard plastic flat plate or glass as the base layer. The surface Coated with a layer of transparent oxidized metal (transparent conductive resistance) conductive layer, and then covered with a layer of hardened, smooth and scratch-resistant plastic layer on the outer surface, its inner surface is also coated with a coating, and there are many fine between them (Less than 1/1000 inch) of transparent isolation points separate the two conductive layers from each other. When it is not working, there is a transparent isolation point in the middle to isolate it. When a finger touches the screen, the two conductive layers come into contact at the touch point, the resistance changes, a signal is generated in both X and Y directions, and then it is sent to the touch screen controller. The controller detects this contact and calculates the position of ( X , Y ) , and then operates according to the way of simulating a mouse. Currently, resistive touch screens are mainly four-wire, five-wire, and eight-wire.

IQTouch K Interactive Display

touch screen display not working.The resistive touch screen (Figure 1 ) is controlled by pressure sensing. The main part is a multi-layer composite film screen that closely matches the display surface. It consists of two conductive layers. It uses a hard plastic flat plate or glass as the base layer. The surface Coated with a layer of transparent oxidized metal (transparent conductive resistance) conductive layer, and then covered with a layer of hardened, smooth and scratch-resistant plastic layer on the outer surface, its inner surface is also coated with a coating, and there are many fine between them (Less than 1/1000 inch) of transparent isolation points separate the two conductive layers from each other. When it is not working, there is a transparent isolation point in the middle to isolate it. When a finger touches the screen, the two conductive layers come into contact at the touch point, the resistance changes, a signal is generated in both X and Y directions, and then it is sent to the touch screen controller. The controller detects this contact and calculates the position of ( X , Y ) , and then operates according to the way of simulating a mouse. Currently, resistive touch screens are mainly four-wire, five-wire, and eight-wire. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.

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Let’s See IQTouch K Interactive Display

4K UHD Display

Stunning 4K UHD can display a cystal clear image on
screen.

20 Touch Points

Enable an interactive and collaborative teaching atmosphere
in classroom.

Built in Wifi hotspot & Optional
Multi-screen casting Software

Support to cast your devices to the screen wirelessly,
and your devices can control the screen wirelessly.

Easy-to-Use Built-in Whiteboard
Software

Built-in Whiteboard software under Android system allow to do
two separate screen teaching and three separate screen teaching.

All-channel Annotation

Enable to annotate under Android system and
Windows system.

Power On/Off Lock and Screen Lock can
be Set with A Password Respectively

Support to lock screen and lock power on/off button
to avoid student malfunction and secure privacy.

To compare with our other IQTouch Series

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