10 tft lcd monitor free sample

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

Main business are: large size (10.1-65 inch) projection capacitor screen production and sales, all fit / optical binding (3.5-72 inch) OEM production and large-size fit device design, production and sales of three Large business scope.

‡ Medicare coverage is available for FreeStyle Libre 14 day systems for cell phone use if FreeStyle LibreLink is used in conjunction with the FreeStyle Libre 14 day readers. Patients must meet Medicare eligibility coverage criteria LCD L33822 (July 2021). Local Coverage Article: Glucose Monitor Policy Article (A52464), July 2021.

References: 1. Haak, Thomas, et al. "Flash Glucose-Sensing Technology as a Replacement for Blood Glucose Monitoring for the Management of Insulin-treated Type 2 Diabetes: a Multicentre, Open-label Randomised Controlled Trial." Diabetes Therapy 8, no. 1 (February 2017): 55-73. https://doi.org/10.1007/s13300-016-0223-6. 2. Data on File. Abbott Diabetes Care. 3. FreeStyle Libre 14 day User"s Manual. 4.Alva, Shridhara, Ting Chen, and Andrew Naegeli. "Acetaminophen Interference on ISF Based Glucose Monitoring Systems." Poster presentation presented at the Advanced Technologies & Treatments for Diabetes (ATTD), Paris, France, February 15-18, 2017.

If you’re looking for a less expensive 24-inch monitor, we recommend the Asus VA24DCP, typically priced around $170. It also has a USB-C connection that can charge most laptops, but it lacks features like a fully adjustable stand, and it doesn’t have a USB hub or the ProArt’s great color accuracy.

The USB-C port on the Asus ProArt PA247CV makes it a fantastic 24-inch 1080p IPS display to use alongside a notebook PC. The 65 watts of charging over USB-C means it will charge most laptops, and the sturdy, adjustable stand means you can use the monitor in a variety of configurations. It’s fairly color accurate out of the box, with great contrast and especially nice reproduction of white and grays, so you shouldn’t notice weird tinges of color when staring deeply into your blank Google Doc page. It also has a USB hub that can add four USB ports to your laptop.

For less than $175, the Asus VA24DCP is a capable 24-inch 1080p IPS display that has full USB-C charging at 65 watts. It’s a great basic monitor for those who want something to hook up to their laptop or PC to browse the internet and get some office work done, as its colors look good for day-to-day use, and it has better contrast than many higher-cost monitors. For $100 less than our top pick, you’re giving up a better, more adjustable stand, a USB hub, and some color accuracy, but if those aren’t important to you, this is a nice monitor for a great price.

The Dell UltraSharp U2421E is a 24-inch monitor with a 1920×1200-pixel resolution, rather than the typical 1920×1080. These extra 120 vertical pixels mean a little less scrolling in large documents or spreadsheets, and more room for your apps and games without taking up more space on a desk. The U2421E comes with a higher price than our 1080p picks, but it has incredibly accurate colors, a USB-C port with 90W of charging for high-powered ultrabooks and the MacBooks Pro, and a USB hub that includes an additional USB-C port.

With the revival of the “Start Menu” from Windows 8 to Windows 10, this user-friendly desktop UI (user interface) realizes a more operable multi-display function. Let’s take a look at how we can use this multi-display tool on a Windows 10 notebook or desktop PC.

On July 29 2015, Windows released their new operating system “Windows 10.” Devices equipped with Windows 7 or Windows 8.1 were given one year to upgrade to Windows 10 for free, and so the migration to the new OS (operating system) Windows 10 is happening much faster than previous Windows operating systems. Even corporate users who emphasize stability over innovation, will proceed to slowly migrate towards Windows 10 when Windows 7 support ends in 2020.

When using Windows 10 in your notebook PC or desktop computer you’ll notice one major change – the revival of the desktop UI. This UI was revived after the complete removal of the Start Menu in Windows 8/8.1 - previously present in Windows 7 and earlier - was met with mixed reactions. The latest UI has become much easier to use, with the modern UI “tile format” being integrated with a virtual desktop feature in order to enhance multitasking and workability.

With the new focus on the desktop UI, Windows 10 has naturally improved the display settings. For example the “multi-display” function (Multiple displays connected to one’s PC for simultaneous use) has been greatly improved. Let’s go through some of these surprisingly not well known Windows 10 multi-display functions found on both notebook PCs and Desktop PCs.

Example: EIZO LCD display FlexScan EV2455 connected to 13.3" 2in1 notebook PC (VAIO Z). Projecting the 13.3" notebook PC display to a 24.1" WUXGA (1920 x 1200 pixels) external display greatly enhances one’s work efficiency.

Example: The expanded display of two EIZO FlexScan EV2455 monitors connected to a desktop PC. Aligning two 24.1" WUXGA (1920 x 1200 pixels) monitors side by side achieves a combined resolution of 3840 x 1200 pixels.

Setting up a multi-display environment on Windows 10 is incredibly simple. When you connect a second display to your PC, Windows automatically detects the display and displays the desktop UI.

Find the “Action Center” icon in the lower right taskbar, and click on the “Project” icon (left image). In the “Project” menu, out of the four options, choose how you want to display your monitors (right image)

From here the two screens’ position relative to each other, display size such as text (expansion rate), display orientation, the previous four display method settings, and the main / sub-display monitor settings can be changed. Additionally, if you cannot see your connected display, click on “detect” to try to find the display (if this doesn’t work we recommend reconnecting the cable and/or restarting your PC).

In the enclosed grey squares [1] and [2], the position of the two monitors relative to each other is displayed. It’s best to drag these two squares to suit the actual position of your monitors.

These days notebook PCs equipped with very high definition displays of pixel densities greater than full HD are growing, but when these units are connected to external displays the character and icon sizes can vary significantly between the original notebook PC and external monitor, making it difficult to work with. If that’s the case, the “Change the size of text, apps, and other items” slider bar can be used to effectively adjust the display sizes close to the each other.

If you scroll down to the bottom of the “Display” menu there is an “advanced display settings” link. If you click on this, you can set the resolutions of the display monitors. Additionally, if you click on the “Advanced sizing of text and other items” link, you can change the settings for more detailed things like the size of items and text.

As shown above, Windows 10 has a new settings application installed which we recommend you use. But you can also use the “control panel” found in Windows 8 and earlier. To any familiar PC user, the conventional method of using the control panel to display various settings is still possible.

In Windows 10, the Snap Assist function that sticks the window to the edge of the screen is available, and even more convenient. If you drag the window to the left or right of the screen, the window will expand to fill half of the screen. This is also possible in the extended desktop function where two windows can be placed onto the left and right sides of each monitor, making a total of four open windows. This can also be accomplished with the shortcut keys Windows + left or right arrow.

After snapping the window to either the left or right using Snap Assist, the vacant area on the opposite side will list all other available windows that can be selected to fit that space. This is also a new feature of Windows 10.

In Windows 10, after a window has been snapped to either the left or right side using the snap function, the empty area in the opposite side will display all other available windows as thumbnails. Choose one of these windows and it will fill that side of the screen.

Furthermore in Windows 10, if a window is moved to one of the four corners of the screen, it will shrink to 1/4 the size of the screen, so that four windows can be displayed at once. Additionally, in a multi-display environment, if you are displaying too many windows and your desktop has become messy, click and drag the window you want to view and quickly shake it to minimize all other windows. You can also press Windows and Home.

There are three options to choose how the taskbar can be viewed. The “All taskbars” option will display the taskbar the same on both displays, with all the running program icons displayed on both display’s taskbars. The “Main taskbar and taskbar where window is open” will display all running program’s icons on the first display’s taskbar and also display the programs running on the second display in the second display’s taskbar. Finally if you select “Taskbar where window is open” the taskbar will be displayed on both displays, but a running program’s taskbar icon will only be displayed on the taskbar of the monitor that the program is displayed on.

The above image shows the difference between the “All taskbars,” “Main taskbar and taskbar where window is open,” and “Taskbar where window is open” settings. The Windows 10 voice-enabled personal assistant “Cortana,” time icons and the notification area will always display on the first monitor.

But an external display with a mainstream 23 – 24" full HD (1920 x 1080 pixels) or WUXGA (1920 x 1200 pixels) model, connected to a notebook PC, will display in a similar size to the notebook PC making it familiar to the user, and providing a lot of work space.

For example you could do things like compare multiple pages at once in a web browser; create a graph on a spreadsheet and paste it into a presentation while reading a PDF document; do work on one screen and watch videos or view a social media timeline on the other; play a game on one screen while reading a walk-through on the other, or use an external color management monitor to check for correct colors. Using an external monitor in addition to your notebook PC allows all of these things to be done seamlessly without having to switch between windows.

Example: An EIZO 24.1 inch WUXGA display (FlexScan EV2455) connected to a high-spec 2in1 VAIO Z notebook PC (from here on the examples will display the same set-up). The VAIO Z notebook display has a high definition resolution of 2560 x 1440 pixels, but because the screen is only a “mobile” 13.3 inches, on Windows it is expanded to 200%. Adding this to the FlexScan EV2455’s 24.1 inch 1920 x 1200 pixel display, gives a vast area of work space. Of course, because the FlexScan EV2455 has a large screen and 1920 x 1200 pixels, the notebook’s display can be displayed at 100% without needing to increase the 1920 x 1200 pixels. This makes for comfortable browsing of multiple web pages as shown.

If you have an external monitor with excellent color display, you can use the graphics software in your notebook PC whilst replicating (mirroring) the display onto the external monitor; creating color-accurate images while you work. The above image is an example of the “Fresh Paint” application.

A word of advice when choosing a monitor to connect to your notebook PC, in a dual display environment — having the two taskbars at the bottom of the screen be uniform makes it easier to use, but a notebook PC’s height cannot be adjusted, so choosing a product that can be easily adjusted is desirable. Furthermore, because a notebook’s display is situated at a fairly low height, an external monitor that can be lowered to the table surface is better.

On the other hand, if you have an external monitor that can be raised quite high, it can be situated on top of the notebook – achieving an extended workspace on a narrow desk. Additionally, if you have an external monitor that is capable of rotating to a vertical (portrait) position, you can take advantage of the long screen by using it for web pages, SNS timelines, and reading documents.

If an LCD display’s height adjustment range is wide, you can create a vertical multi-display environment like this, reducing the required width of your working space. The image gives the example of a VAIO Z and FlexScan EV2455, but if you tilt the screen of the VAIO Z, the FlexScan EV2455 can be made to not overlap as shown; naturally creating two screens.

In our examples we used the EIZO 24.1-inch WUXGA display FlexScan EV2455 because it is a monitor with a height adjustment range of 131 mm and the ability to be vertically rotated, so it can be easily combined with a notebook PC. Additionally, because of the narrow “frameless” design, the black border and bezel (i.e. noise) is minimized as much as possible. It’s easy to appreciate how the visual transition from one screen to the other becomes naturally gentler on the eyes. This monitor will also suit any photo-retouching and content creation by correctly displaying the sRGB color gamut; i.e. displaying colors the same as those found in most notebook PCs.

It should be noted that in Windows 10, the “tablet mode” cannot be used in a multi-display environment. In Windows 8/8.1 a notebook PC could display the modern UI start screen while an external display could display the desktop UI, but in Windows 10 the multi-display environment is restricted to only using the desktop UI. This is one of the revived functions that were found to be most useful in Windows 7.

Because there are no screen size or resolution restrictions like in a notebook PC, the desktop multi-display environment can use a flexible combination of screen sizes and resolutions according to your location, budget or application. If so inclined, using the previous EIZO monitor, a resolution of 5760 x 1080 pixels could be made from 3 monitors, 5760 x 2160 pixels from 6 monitors, and many more variations can be made.

Of course even a non-high-spec environment can find improvement in their work efficiency by using two mainstream 23 – 24 inch Full HD (1920 x 1080 pixels)/WUXGA (1920 x 1200 pixels) monitors, compared to just the one monitor.

An example of how a multi-display environment can be used in the business scene. The left display can display tables and calculations of statistical data, while comparing the graphs, and the right screen can be used to summarize the findings in a document. If this were just one monitor, you would be constantly switching between windows, but with two monitors you can see all the necessary data without needing to switch between windows; improving work efficiency and reducing transcribing errors.

An example of how the multi-display environment can help with photo re-touching. Rotating one monitor to the vertical position can help with retouching portrait photos, or editing long documents and websites. If you want to take advantage of a vertical screen, you need to choose a monitor that can be rotated or buy a separate rotating mount to attach your monitor to.

Most commonly when people want to build a multi-display environment, they start with one monitor, and then later add another one. Ideally, it’s best to purchase multiple monitors of the same model in the beginning. This way the screen size and resolution can be aligned, but also the color and aesthetics will match. But perhaps more importantly, because the monitors are the same age, any defects in the screen such as color variations can be found early-on by comparing the two monitors next to each other.

Another note for those who might be thinking about trying to build a multi-display environment, is that the more monitors you align, the wider your viewing angle will need to be. In order to be able to see each monitor clearly without having to move, you need to buy a product that has wide viewing angles. Furthermore, the more screens you have the harder it is to avoid light reflecting on your screen and into your eyes. To prevent this, we recommend buying a monitor with a glare reducing surface, which will make the screens easier to see and will be easier on your eyes. Additionally, as mentioned above we recommend a monitor with a narrow bezel and black border as it is space-saving and increases visibility among other advantages.

The 24.1-inch WUXGA display FlexScan EV2455 that we used, uses an IPS LCD panel with wide viewing angles and a glare reducing screen. Furthermore it has a narrow-frame design of only 6.2 mm (1 mm bezel and 5.2 mm black border). Therefore two monitors side by side will only have a gap of 12.4 mm, so you can make an almost noiseless multi-display environment. Another feature is the automatic dimming function (Auto EcoView) which leads to less eye fatigue, and less power consumption.

The FlexScan EV2455 has a narrow frame design of only 6.2 mm (1 mm bezel and 5.2 mm black border). This requires only 12.4 mm when two monitors are aligned, so the bezel doesn’t feel like it’s in the way.

Earlier we introduced the set-up procedure for Windows 10 “multi-display,” and also showed some concrete examples. Whether you use a notebook PC or the more conventional desktop PC, if you want to increase the work efficiency of Windows 10, using multi-display is highly effective.

Even compared to a PC, a monitor is still a possible long-term investment. Therefore we recommend that you do not compromise on quality; in the medium to long term if you think of the comprehensive savings made through increased work productivity, reduced burdens on your body, and reduced power consumption, high-quality display products may offer higher value. Considering that, the FlexScan EV2455 that we used from EIZO’s “FlexScan EV” series meets all of these elements and includes a 5 year warranty, making it one of the best products suited to a multi-display environment.

If you want to buy a new monitor, you might wonder what kind of display technologies I should choose. In today’s market, there are two main types of computer monitors: TFT LCD monitors & IPS monitors.

The word TFT means Thin Film Transistor. It is the technology that is used in LCD displays.  We have additional resources if you would like to learn more about what is a TFT Display. This type of LCDs is also categorically referred to as an active-matrix LCD.

These LCDs can hold back some pixels while using other pixels so the LCD screen will be using a very minimum amount of energy to function (to modify the liquid crystal molecules between two electrodes). TFT LCDs have capacitors and transistors. These two elements play a key part in ensuring that the TFT display monitor functions by using a very small amount of energy while still generating vibrant, consistent images.

Industry nomenclature: TFT LCD panels or TFT screens can also be referred to as TN (Twisted Nematic) Type TFT displays or TN panels, or TN screen technology.

IPS (in-plane-switching) technology is like an improvement on the traditional TFT LCD display module in the sense that it has the same basic structure, but has more enhanced features and more widespread usability.

These LCD screens offer vibrant color, high contrast, and clear images at wide viewing angles. At a premium price. This technology is often used in high definition screens such as in gaming or entertainment.

Both TFT display and IPS display are active-matrix displays, neither can’t emit light on their own like OLED displays and have to be used with a back-light of white bright light to generate the picture. Newer panels utilize LED backlight (light-emitting diodes) to generate their light hence utilizing less power and requiring less depth by design. Neither TFT display nor IPS display can produce color, there is a layer of RGB (red, green, blue) color filter in each LCD pixels to produce the color consumers see. If you use a magnifier to inspect your monitor, you will see RGB color in each pixel. With an on/off switch and different level of brightness RGB, we can get many colors.

Winner. IPS TFT screens have around 0.3 milliseconds response time while TN TFT screens responds around 10 milliseconds which makes the latter unsuitable for gaming

Winner. the images that IPS displays create are much more pristine and original than that of the TFT screen. IPS displays do this by making the pixels function in a parallel way. Because of such placing, the pixels can reflect light in a better way, and because of that, you get a better image within the display.

Winner. While the TFT LCD has around 15% more power consumption vs IPS LCD, IPS has a lower transmittance which forces IPS displays to consume more power via backlights. TFT LCD helps battery life.

Normally, high-end products, such as Apple Mac computer monitors and Samsung mobile phones, generally use IPS panels. Some high-end TV and mobile phones even use AMOLED (Active Matrix Organic Light Emitting Diodes) displays. This cutting edge technology provides even better color reproduction, clear image quality, better color gamut, less power consumption when compared to LCD technology.

This kind of touch technology was first introduced by Steve Jobs in the first-generation iPhone. Of course, a TFT LCD display can always meet the basic needs at the most efficient price. An IPS display can make your monitor standing out.

TFT LCD image retention we also call it "Burn-in". In CRT displays, this caused the phosphorus to be worn and the patterns to be burnt in to the display. But the term "burn in" is a bit misleading in LCD screen. There is no actual burning or heat involved. When you meet TFT LCD burn in problem, how do you solve it?

When driving the TFT LCD display pixels Continously, the slightly unbalanced AC will attract free ions to the pixels internal surface. Those ions act like an addition DC with the AC driving voltage.

Those burn-in fixers, screen fixer software may help. Once the Image Retention happened on a TFT, it may easy to appear again. So we need to take preventive actions to avoid burn in reappearing.

For normal white TFT LCD, white area presenting minimal drive, black area presenting maximum drive. Free ions inside the TFT may are attracted towards the black area (maximum drive area)