IQBoard logo

touch screen lcd not working

touch screen lcd not working.The initial idea of ??the basic working principle of the external surface capacitive screen is : people are false grounding objects (zero potential body), and a very low voltage is applied to the working surface. When there is no contact with the screen, the various electrodes are at the same potential There is no current on the surface of the touch screen. When the user touches the screen , a small current is absorbed by the finger. This current flows from the electrodes on the four corners or four sides of the touch screen. The distance from the finger to the four corners is proportional. The controller calculates the position of the touch point through precise calculation of the four current ratios.

IQTouch K Interactive Display

touch screen lcd not working.The initial idea of ??the basic working principle of the external surface capacitive screen is : people are false grounding objects (zero potential body), and a very low voltage is applied to the working surface. When there is no contact with the screen, the various electrodes are at the same potential There is no current on the surface of the touch screen. When the user touches the screen , a small current is absorbed by the finger. This current flows from the electrodes on the four corners or four sides of the touch screen. The distance from the finger to the four corners is proportional. The controller calculates the position of the touch point through precise calculation of the four current ratios. 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.

Share this entry

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

RESOURCE FOR YOU

Send Us A Message

Copyright © 2017.Returnstar Interactive Technology Group Co., Ltd All rights reserved.