lcd touch screen calibration supplier

One of the most common questions our Tech Support group receives is how to calibrate the touch screen, usually during the initial installation. To help users through the process, we’ve created this step-by-step guide for Microsoft Windows users.

These instructions apply to Windows versions 7, 8, and 10 when using the USB touch screen interface – there may be small differences depending on your version.

Before calibrating your touch screen, the Elo Touch Screen driver must be installed using the steps in the Installing the Elo Driver section below, unless the drivers were previously installed. If you are unsure whether the driver has been installed, see the Checking for the Elo Driver section.

A driver that was not properly installed could result in a screen that will not calibrate. If there is any doubt, remove the driver using steps in the Removing the Elo Driver section below, then reinstall using the Installing the Elo Driver instructions below.

When installing the Elo Driver for USB touch screens, it is very important that the USB cable is left unplugged until the driver has been successfully installed. The driver may not properly install if the touch screen USB cable is plugged in before the driver is installed.

Downloading the most recent Elo Touchscreen Windows driver from our drivers page is preferred, but the driver can also be found on the CD-ROM that ships with the industrial display. In either case, copy the driver to any location on the machine’s drive.

Note: all Hope Industrial touch screens support both Serial and USB connections, but installation of the Serial connections is not covered by these instructions. Please contact support if any help is needed with the Serial driver installation.

Connect the USB cable from the touch screen monitor to the computer. Windows will detect the device and associate the driver. When this is complete, go to the Calibrating/Aligning the Touch Screen section below for calibration instructions.

Once the driver is properly installed, the screen can be calibrated.Open the Windows Control Panel. For help opening the Control Panel for your version of Windows here is a guide. Once the control panel is open, select View By > Small icons in the top-right of the window.

The calibration routine will begin, and will present you with a series of targets to press in turn followed by a confirmation screen – just follow the onscreen instructions to complete the calibration.

If the “Elo Touchscreen” icon is in the list of icons, the touch screen driver has already been installed. Proceed to the Calibrating/Aligning the Touch Screen section of this page.

Note that to properly remove the Elo Driver before reinstallation, it is very important to unplug the touch screen USB connection before proceeding. Failure to do so can cause future driver reinstallation to fail.

When re-installing the driver, the USB cable should not be reconnected until the driver installation is successfully completed.Confirm that the touch screen USB cable has been disconnected.

Calibration is usually performed on the setting screen of a device driver (mouse emulation software). There are two methods of calibrating DMC touch controllers. One is to calibrate by host PC and save calibration data in the host PC. The other is to calibrate by controller and save the calibration data in the EEPROM on the controller. In both cases, calibration is performed on the monitor screen. The difference in features and operations are described below.

Enter service mode (Press the Additional Functions key, then 2, then 8, then the Additional Functions key again to enter service mode). #SSSW will appear on the LCD Display.

Each time you press the plus sign, the plus sign will move to a different spot on the LCD Display until the plus sign reaches the lower right hand corner of the LCD Display. When the plus sign reaches the lower right hand corner of the LCD, press the plus sign one final time and the Touch Panel XY Adjust screen will re-appear.

At this time, the calibration of the LCD Touch Display is finished. Keep pressing the Stop key on the Control Panel until Test Mode appears then press the Additional Functions key once to return to the normal Ready screen on the LCD Display.

When you insert the TF card into the Raspberry Pi, power it up, and wait for a while, the Raspberry Pi will start normally. In this case, the touch may be faulty and needs to be calibrated.

Touch will work normally after restarting the Raspberry Pi. With different resistive screens, the accuracy may not be very good using the default calibration parameters, so you need to follow the guide below.

@texasEE, this is one of the screen’s i haven’t had a chance to personally calibrate yet. I had a chance to test the 4 and 5 inch, so those have it implemented. For the 7-inch, the values are in the device tree overlay, copied from the 4 and 5 inch displays, just disabled:

After you touch the last sign (lower right), a message at the bottom of the screen prompts you to confirm the correct completion of the calibration, or to try again.

If you are having issues with your Touchscreen, this may include being unable to access items to the edge of the screen. For example, your screen may require re-calibration.

NOTE: If Tablet PC Settings is not seen, then make sure that your touchscreen USB cable is attached if using external display. Also check that any touchscreen drivers are installed, you can download these from the Dell Support site.

The touch screen may start to lose its sensitivity due to foreign particles (such as sticky notes) that are blocking the touch sensors. To remove these particles:

Use a clean, lint-free cloth to wipe the surface and sides of the touch screen to remove any dirt or fingerprints. You may spray mild, non-abrasive cleaner or water on the cloth if needed, but not on the screen.

If you do not have Cortana enabled, Then either click the Start button on screen or use Windows key on keyboard. Then click Settings icon (cog). Then type Tablet Mode in the settings search box and select Tablet Mode Settings.

If the resolution setting does not match the screen, the touch position will also be affected. For example, when you touch certain positions on the screen, it responds on correct points, but clicks on other positions may activate other areas next to them instead.

When the cursor is on the desktop, right click for the setting menu → click [Display settings ] → choose the touch screen (number 2 screen) and select the corresponding resolution(for example, On-Lap M505T resolution is 1920x1080), and then click "Apply".

Locate dirt, debris, residue, or blots/drops of anything that looks like it may fool the system into thinking a touch is being issued there. It is surprising how sensitive these overlays can be, and they have to be, for the most optimum performance.  So, to begin troubleshooting any touch issues, start by using a soft cloth and some 70% isopropyl alcohol to really wipe the screen down.   Inspect the inner LCD bezel for debris. Use a can of duster-air and/or folded piece of paper for the tight places.  Next, inspect the screen for scratches, pits or dents.  All of the above will produce results, such as, misaligned touch, or a cursor that is constantly retracting back to the same position.

(Touch Monitors Only) First, if using a touch monitor, start by resetting the USB cable on both, the computer, and touch monitor ends, and use a different USB port on the PC end.  If all USB ports are currently utilized, try swapping with another simple device, such as, a keyboard, mouse, memory stick etc. Avoid swapping with a printer, as this may produce printing problems.

If using a Touch PC or Touch Monitor, let’s start with Calibration.  Head to your Start Menu, select All Programsand locate the Touch Kit (XTS/XPC product line) or Touch Utility(EVO product line) folder, and locate your calibration option to begin.  Depending on your product line, you will find this under Tools or Devices.

If your touch is not responding at all, let’s insure the drivers are correctly installed.  Navigate to you Start Menu > right-click on Computer > Manage > Device Manager > and expand the, Mice and other pointing devices category.  Do you see aUTCRS232, URTC1000, or IdeaComentry? If so, do you see it listed with a yellow exclamation, or question mark? If no entry is found here, do you see it listed under the category Other Devices? If you see an entry and it is marked with a yellow icon, try the following:

If no entry is found, we need to insure the USB touch controller cable from the monitor, is directly plugged into the computer and not through a USB splitter / Hub.

If you"ve had your Panasonic Toughbook for a while, you might notice that your mouse curser is slowly becoming less and less accurrate. This is normal, but you can easily correct it. You simply need to recalibrate your touchscreen. Calibration is quite simple.

Please note that when calibrating the touchscreen models you do need to apply a bit more pressure than when you routinely use the machine. This is normal. However, please do not apply too much force or you can physically damage your LCD screen below the touch panel.

To our customers’ benefit, we perform a variety of laboratory processes that quantify or enhance the capabilities of our LCD and monitor products. One is our display calibration and matching process, which provides our customers with cross display image uniformity and true-to-life image reproduction.

Display calibration and matching (DCM) ensures that multiple monitors operated side by side—such as in an air traffic control tower or a shipboard navigation system—appear identical. This is accomplished by calibrating display attributes to a common standard, or to a customer-specific criteria. The following display attributes can be calibrated:

The importance of display calibration cannot be overstated. Involving the use of both hardware and software elements, it ensures that a display is efficiently operating at its full quality capabilities. In fact, display settings that degrade the performance of panels can be adjusted to optimal values during calibration. The primary benefits of matching monitors to each other are:

General Digital-trained technicians set up the target monitors in our Optics Laboratory. The monitors are connected to high performance video generators and colorimeters. Special software is run to analyze the monitors under a wide range of video modes and test conditions to gather performance data, which is analyzed to determine optimal calibration. After calibration is successfully performed, a calibration certificate is generated that summarizes the user adjustable video settings, so that the values can be restored if unintentionally modified.

General Digital can perform the DCM process on any of its monitors and display kits, from 5" to 65" LCDs incorporating various technologies. Also, many organizations send their displays to General Digital’s Optical Bonding Laboratory (OBL) for bonding or other optical enhancements. We can calibrate these displays to D65 standards, achieving a full range of accurate picture colors, provided they are supplied with all of the required electronics and final display overlays (see below).

For a proper calibration, we ensure that we have, at minimum, the display(s) or monitor(s) complete with overlays, film work, backlight, backlight controller and LCD controller. Note that we use LCD controllers compatible with our in-house equipment; for third-party displays, we require the same.

General Digital recommends that calibration be performed once a year, after the initial calibration, in order to enjoy and maintain all of the benefits associated with display calibration and matching.

With the many benefits it offers, high quality display calibration and matching ensures that our customers get the most out of their display or monitor. General Digital performs this process as part of our commitment to providing superior quality display products. Our specialized equipment coupled with our stellar experience means your monitors and displays are optimized to the highest level attainable. And with that, General Digital will provide maintenance and support for years to come.