Transparent properties
Transparency, which directly affects the visual effect of the touch screen. Transparency has the problem of the degree of transparency, infrared technology touch screen and surface acoustic wave touch screen are only separated by a layer of pure glass, transparent can be regarded as a leader, other touch screens should be carefully scrutinized, "transparent", in the touch screen industry, is just a very general concept, many touch screens are multi-layer composite films, it is not enough to summarize its visual effect with a little transparency, it should include at least four characteristics: transparency, color distortion, reflectivity and clarity, and can be divided again, For example, the degree of reflection includes the degree of mirror reflection and the degree of diffraction reflection, but the diffraction reflection on the surface of the touch screen has not yet reached the level of the CD disk, and for users, these four measures are basically enough.
Due to the existence of light transmittance and wavelength curves, the image seen through the touch screen inevitably produces color distortion with the original image, the static image feels only the color distortion, and the dynamic multimedia image feels not very comfortable, and the color distortion is the maximum color distortion of the figure, which is naturally as small as possible. The transparency that is usually referred to can only be the average transparency of the graph, of course, the higher the better.
Reflective properties
Reflectivity mainly refers to the light and shadow behind the overlapping image due to specular reflection, such as human figures, windows, lights, etc. Reflective is the negative effect of the touch screen, the smaller the better, it affects the user's browsing speed, and even the image characters cannot be recognized in serious cases, the use environment of the reflective touch screen is limited, and the lighting arrangement on the scene is also forced to need to be adjusted. Most of the touch screens with reflective problems are provided with another model with surface treatment: matte touch screen, also called anti-glare type, the price is slightly higher, the anti-glare type reflectivity is significantly reduced, suitable for very well-lit halls or exhibition venues, however, the light transmittance and clarity of the anti-glare type have also decreased significantly. Clarity, after some touch screens are installed, the handwriting is blurry, the image details are blurry, and the whole screen appears blurry and can't be seen clearly, which is that the clarity is too poor. The problem of clarity is mainly caused by the repeated refraction of light and reflection between the layers of the film, and the anti-glare touch screen also causes a decrease in clarity due to surface frosting. The clarity is not good, the eyes are easy to get tired, and there is also some damage to the eyes.
Absolute coordinates
The touch screen is an absolute coordinate system, and the essential difference between the relative positioning system and the mouse is the intuitiveness in place. The characteristics of the absolute coordinate system are that each positioning coordinate has no relationship with the previous positioning coordinates, the touch screen is physically an independent coordinate positioning system, and the data of each touch is converted to the coordinates on the screen through the calibration data, so that the touch screen is required to have this set of coordinates no matter what the situation, the output data of the same point is stable, if it is unstable, then the touch screen can not guarantee the absolute coordinate positioning, and the point is not accurate, which is the most feared problem of the touch screen: drift. In terms of technical principle, all touch screens that cannot guarantee the same touch at the same point and the same sampling data have the problem of drift, and only capacitive touch screens have drift at present.
Detect positioning
Detect touch and localize, various touch screen technologies rely on their own sensors to work, and some even touch screens are a set of sensors themselves. The respective positioning principle and the respective sensors used determine the response speed, reliability, stability and longevity of the touch screen.
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Weiluntong touch screen - how to deal with the failure of industrial touch screen?
When the touch function of the touch screen fails, first try to enter offline mode to verify whether the touch screen backlight is burned out. If the cause of the fault is verified to be a burned-out backlight, then we can follow the steps below to temporarily restore the touch function of the touchscreen (take the Proface GP series touchscreen as an example below).
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Weiluntong: Dual-brand strategy, casting a gold medal human-machine interface manufacturing expert
On November 7, 2017, the five-day 2017 China International Industry Fair (hereinafter referred to as the "Industry Fair") opened at the National Convention and Exhibition Center in Shanghai. As Asia's largest and brand's top event in the field of industrial automation, this event brings together the world's leading automation equipment manufacturers.
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How to modify the description of the measurement point of the touch screen?
1. First of all, open the created Weilun touch screen project, select Common in the menu bar and click Open.
2. Secondly, select the system parameter icon in the common drop-down menu and click to open.
3. Finally, click Change.
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Weiluntong - analysis and treatment of the cause of touch screen failure
Check whether the connection interface is loose, and then check whether Serial Port and Interrupt Number conflict. If there is a conflict, adjust the resources to avoid the conflict. Then check the surface of the touch screen for cracks. If there is a crack, replace it in time. It is also necessary to check the touch screen table ...
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Velun Tong Touch Screen EBPro Software Knowledge Points (1-20)
1. Background color:
Right-click on the blank space of the window, select Properties, Pop-up Settings, and select a color in the background;
Hatch: In the background, tick the fill, select the pattern color and pattern.
2. Picture/Background Image:
Select Picture Element ...
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Weiluntong touch screen download is the solution to Chinese and English garbled characters
1. Enter the Weiluntong touch screen setting interface, find the input method option, and change it to the corresponding text type (such as Chinese Simplified, English) to solve the problem.
2. Install the corresponding input method, which can also solve this problem.
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What are the benefits of several I/O interfaces of Weiluntong touch screen, and where are they more used
If we look at the sample manual, we will find that the I/O interface of the Weiluntong touch screen also includes several types, such as USB port, Ethernet port, serial interface, which we see a lot, as well as SD card slot, WIFI, CANBUS, sound output, image input, etc.
Like USB ...
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Weiluntong touch screen - introduction to the operation skills of touch screen
1. If you are using a capacitive touch screen, then it is recommended that you first install the driver required for the capacitive touch screen correctly according to the requirements of the manual when you use it for the first time, and then click "Start"/"Program"/"Microtouch Touc" on the screen with your fingers.
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What are the symptoms of a faulty touchscreen motherboard?
1. The motherboard cannot recognize/display the peripheral devices.
2. The peripherals will stop working for a few seconds or more.
3. A slow boot may indicate that your motherboard is broken, although it could also be other components.
4. The touch screen does not recognize the flash drive, or ...
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A detailed look at the seven different models of Veriton touch screens
Model 1, MT200, this model can be said to be the earliest model of this brand, which is very popular in some regions and can realize automated procedures.
Model two, MT500, this model is following the previous model, after the launch of the very good ...
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Weiluntong touch screen - the main features of the touch screen are introduced
Easy to operate
You only need to touch the relevant button on the computer screen with your finger to enter the information interface, which can include text, animation, music, video, game, etc.
User-friendly interface
Customers don't need to know the expertise of computers to understand ...
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The basic functions and usage methods of the human-machine interface - Weiluntong
The man-machine interface is connected to programmable controllers (PLCs), frequency converters, DC governors, instruments and other industrial control equipment, and the display screen is used to display and write working parameters or input operation commands through input units (such as touch screens, keyboards, mice, etc.) to realize the interaction of human and machine information.
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Veruntong touch screen programming software uses RS485 and PLC to realize the online mold method on the Internet
1. Use a red wire to connect the 7 pins of the Rs485 port of the touch screen with the A port of the DTD434MC. Use another black wire to connect pin 8 of the Rs485 port of the touchscreen with the B port of the DTD434MC.
2. The last digit (K88) in the wireless communication terminal setting switch is turned on.
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Frequently Asked Questions about Velun Tong touch screen
1. The direct window element can realize the bit-address control window pop-up.
Setup Steps:
1. Click [Components] in the menu bar - click the "Direct Window" component under [Embed Window].
2. The dialog box shown in the following figure pops up, specify the "Read Address".
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The TK series of the touch screen series introduced by Weiluntong
1. TK series (simple and practical, widely used)
1、TK8071iP
7" TFT display 800*480 dots, brightness 350, contrast ratio 500:1, 16M color, 128MB memory,
DC10.5——28VDC power supply, four-wire resistive type, overall dimensions 200.4*146.5*34m...
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Weiluntong touch screen - the feature of infrared touch screen
1. The infrared touch screen does not need touch pressure, it can be operated freely even if you wear gloves, and anything can be touched.
2. Compared with the display equipped with capacitive and resistive touch screen, the picture saturation is richer and the contrast ratio is better, which improves the user's visual comfort.
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Weiluntong touch screen does not respond to the fault maintenance fault cause
1. The line interface of the Weilun Tong touch screen is faulty.
2. Whether there is a crack fault on the surface of the touch screen.
3. External interference and control box failure.
4. The connection between the touch screen and the host or the host is faulty.
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The solution to the download mode error prompted by Velun Tong
1. Software editing-system parameter setting-HMI attributes-port number: 8000 change, such as 9000;
2. Bring up the computer task manager - end com_e30.exe under the process;
3. Restart the computer;
4. Query other occupancy on the computer through TCPview software.
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Precautions for the use of the USB cable of the touch screen
USB cable specification: HI-SPEED USB Revision 2.0 SHIELDED 24AWG
1. The USB port of the computer must support standard USB 2.0 or USB 3.0.
2. The USB cable needs to be double-layer isolated: aluminum foil and copper mesh isolation.
3. The length of the USB cable is not ...
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