multi lcd display free sample

Video brochure box, Wholesale price digital Video box,5/7.0/10.0 inch LCD Screen Video Player Brochure Box for Business Advertising Promotion , Free Sample.

The Matrix Orbital EVE2 SPI TFT utilizes the FT812 and FT813 are second generation Embedded Video Engine or EVE/EVE2 for short. The EVE2 is a powerful controller which provides a powerful feature set in a small package to create dynamic Human Machine Interfaces (HMIs). With built in graphics operations, sound synthesizer, digital filter and support for multiple widgets you can create your own stunning screens and interfaces with the EVE Screen Designer software.

Application Areas: Heart Monitors, Blood Pressure Displays, Medical Appliances, Phones and Switchboards, Tele/Video Conferencing Systems, Graphic Touch Pad e.g. Remote, Dial Pad, Home Security Systems, Instrumentation, Multi-function Printers, Point of Sale Machines and more...

This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE. We’ll show you how to wire the display, install the library and try sample code to write text on the LCD: static text, and scroll long messages. You can also use this guide with the ESP8266.

Additionally, it comes with a built-in potentiometer you can use to adjust the contrast between the background and the characters on the LCD. On a “regular” LCD you need to add a potentiometer to the circuit to adjust the contrast.

Before displaying text on the LCD, you need to find the LCD I2C address. With the LCD properly wired to the ESP32, upload the following I2C Scanner sketch.

After uploading the code, open the Serial Monitor at a baud rate of 115200. Press the ESP32 EN button. The I2C address should be displayed in the Serial Monitor.

Displaying static text on the LCD is very simple. All you have to do is select where you want the characters to be displayed on the screen, and then send the message to the display.

The next two lines set the number of columns and rows of your LCD display. If you’re using a display with another size, you should modify those variables.

Then, you need to set the display address, the number of columns and number of rows. You should use the display address you’ve found in the previous step.

To display a message on the screen, first you need to set the cursor to where you want your message to be written. The following line sets the cursor to the first column, first row.

Scrolling text on the LCD is specially useful when you want to display messages longer than 16 characters. The library comes with built-in functions that allows you to scroll text. However, many people experience problems with those functions because:

The messageToScroll variable is displayed in the second row (1 corresponds to the second row), with a delay time of 250 ms (the GIF image is speed up 1.5x).

In a 16×2 LCD there are 32 blocks where you can display characters. Each block is made out of 5×8 tiny pixels. You can display custom characters by defining the state of each tiny pixel. For that, you can create a byte variable to hold  the state of each pixel.

In summary, in this tutorial we’ve shown you how to use an I2C LCD display with the ESP32/ESP8266 with Arduino IDE: how to display static text, scrolling text and custom characters. This tutorial also works with the Arduino board, you just need to change the pin assignment to use the Arduino I2C pins.

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.

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.

In this case we opened the multi-display function from the desktop UI by selecting the OS “Project” menu. From the taskbar, click on the Action Center (bottom right of screen) and select “Project,” or if you want to use the shortcut keys, press the Windows Key andP key and the “Project” menu will appear. There are four types of display methods that can be chosen. If you want to expand the desktop UI over two screens, select the “Extend” option.

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.

In the “System > Display” menu the screen position, display size (enlargement ratio), display orientation, display method of the multi-display, and main/sub display can be set.

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, 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.

Let’s take a look at how the Taskbar can be used to increase the efficiency of the multi-display function. Right click on the taskbar and select “Settings” to display the “Settings > Taskbar” menu. Let’s look at the multi-display settings that can be found here. If you want to display the taskbar on your second device, slide the “Show taskbar on all displays” option to “on” and the taskbar will appear on both devices.

Right click on the taskbar, and select “Settings” (Left image). In the “Settings > Taskbar” menu, scroll down to “Multiple displays” and you can choose how the taskbar will be displayed on each device.

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.

If you connect an external display to a notebook PC, being able to create a large-screen, high resolution dual-display environment can significantly improve one’s work efficiency. These days products with high density pixel displays larger than full HD are becoming more common, but if a notebook PC with a screen size of 13 or 14 inches is displayed on one of these high resolution displays, the screen will end up shrinking so that it’s difficult to read, and so it has to be enlarged by 150% or 200%. Therefore it’s not that resolution = workspace, but rather that your workspace is limited to the size of your screen.

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.

Example: On a large external display, you can watch an online video while searching for relevant information on your notebook. Of course you can surf the internet on anything, but the large external screen is perfect for enjoying video content.

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.

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.

If the external display is set in the vertical position, portrait photos and long lists of information can be displayed. The notebook PC cannot be used in the vertical position.

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.

Although the notebook PC has become mainstream in recent years, the desktop PC is still popular for users who require high-performance or work efficient computers. So to these users who want to take advantage of their high-powered PCs and increase their productivity, we recommend the multi-display environment. Using large, high resolution displays in a multi-display environment gives you an unbeatable advantage.

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.

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 map-based services can be used. On just one screen, the display range of a map is quite narrow, but with two screens, a map, aerial photo, information about the location, and photos from the location can all be displayed at the same time. You can take advantage of the realism of the large screen by doing virtual tours of tourist destinations.

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.

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.

The left number is the Display Number, which is 04 in this example. The right section shows the Register Read, which is 000753 in this example. You need both numbers to get your billing reads.

Although the meter may show more Display Numbers than listed, UI only needs a few for billing. If your meter does not show all of these Display Numbers, don’t worry. The missing Display Numbers won’t be needed for your bill.

Our military displays are COTS products which have been modified to meet various MIL specs. They are designed to withstand harsh conditions such as extreme cold and heat, high humidity, dust and sand, water and salt fog exposure, shock and vibration, altitude extremes and rapid decompression, rapid acceleration and deceleration. Many displays include or can be modified to include performance requirements such as sunlight readability, NVIS compatibility, DO-160, EMI requirements, and more.

Our displays are deployed on fixed- and rotary-winged aircraft, naval surface ships, Coast Guard cutters and submarines, transport and tactical vehicles, UAS/UAV ground control and air traffic control stations. Check out our Deployment section to see which display would best meet your requirements.

This large loop powered indicator features a 3½ digit LCD with 19mm (0.75") digit height.  Calibration is by two multi-turn potentiometers and connection to the current loop is via two screw terminals.  The DPM 942 is a low cost, popular part, normally stocked in high quantity and suitable for new designs.

The liquid crystal research of the 1960s was characterized by the discovery of and experiments on the properties of the liquid crystals. George H. Heilmeier of the RCA based his research on that of Williams, diving into the electro-optical nature of the crystals. After many attempts to use the liquid crystals to display different colors, he created the first working LCD using something called a dynamic scattering mode (DSM) that, when voltage is applied, turns the clear liquid crystal layer into a more translucent state. Heilmeier was thus deemed the inventor of the LCD.

In the late 1960s, the United Kingdom Royal Radar Establishment (RRE) discovered the cyanobiphenyl liquid crystal, a type that was fitting for LCD usage in terms of stability and temperature. In 1968, Bernard Lechner of RCA created the idea of a TFT-based LCD, and in that same year, he and several others brought that idea into reality using Heilmeier’s DSM LCD.

After the LCD’s entrance into the field of display technology, the 1970s were full of expansive research into improving the LCD and making it appropriate for a greater variety of applications. In 1970, the twisted nematic field effect was patented in Switzerland with credited inventors being Wolfgang Helfrich and Martin Schadt. This twisted nematic (TN) effect soon conjoined with products that entered the international markets like Japan’s electronic industry. In the US, the same patent was filed by James Fergason in 1971. His company, ILIXCO, known today as LXD Incorporated, manufactured TN-effect LCDs which grew to overshadow the DSM models. TN LCDs offered better features like lower operating voltages and power consumption.

From this, the first digital clock, or more specifically an electronic quartz wristwatch, using a TN-LCD and consisting of four digits was patented in the US and released to consumers in 1972. Japan’s Sharp Corporation, in 1975, began mass production of digital watch and pocket calculator TN LCDs, and eventually, other Japanese corporations began to rise in the market for wristwatch displays. Seiko, as an example, developed the first six-digit TN-based LCD quartz watch, an upgrade from the original four-digit watch.

Nevertheless, the DSM LCD was not rendered completely useless. A 1972 development by the North American Rockwell Microelectronics Corp integrated the DSM LCD into calculators marketed by Lloyds Electronics. These required a form of internal light to show the display, and so backlightswere also incorporated into these calculators. Shortly after, in 1973, Sharp Corporation brought DSM LCD pocket-sized calculators into the picture. A polymer called polyimide was used as the orientation layer of liquid crystal molecules.

In the 1980s, there was rapid progress made in creating usable products with this new LCD research. Color LCD television screens were first developed in Japan during this decade. Because of the limit in response times due to large display size (correlated with a large number of pixels), the first TVs were handheld/pocket TVs. Seiko Epson, or Epson, created the first LCD TV, releasing it to the public in 1982, which was soon followed by their first fully colored display pocket LCD TV in 1984. Also in 1984 was the first commercial TFT LCD display: Citizen Watch’s 2.7 inch color LCD TV. Shortly after, in 1988, Sharp Corporation created a 14 inch full-color TFT LCD that used an active matrix and had full-motion properties. Large-size LCDs now made LCD integration into large flat-panel displays like LCD screens and LCD monitors possible. LCD projection technology, first created by Epson, became readily available to consumers in compact and fully colored modes in 1989.

The LCD growth in the 1990s focused more on the optical properties of these new displays in attempts to advance their quality and abilities. Hitachi engineers were integral to the analysis of the LCD industry, previously centered in Japan, began expanding and moving towards South Korea, Taiwan, and later China as well.

As we entered the new century, the prominence of LCDs boomed. They surpassed the previously popular cathode-ray tube (CRT) displays in both image quality and sales across the world in 2007. Other developments continued to be made, such as the manufacturing of even larger displays, adoption of transparent and flexible materials for LCD hardware, and creation of more methods to

As of today, as LCD displays have developed quite a bit, but have remained consistent in structure. Illuminated by a backlight, the display consists of, from outermost to innermost two polarizers, two substrates (typically glass), electrodes, and the liquid crystal layer. Closer to the surface is sometimes a color filter as well, using an RGB scheme. As light passes through the polarizer closest to the backlight, it enters the liquid crystal layer. Now, depending on whether an electric field directed by the electrodes is present, the liquid crystal will behave differently. Whether using a TN, IPS, or MVS LCD, the electrode electric field will alter the orientation of the liquid crystal molecules to then affect the polarization of the passing light. If the light is polarized properly, it will pass completely through the color filter and surface polarizer, displaying a certain color. If partially polarized correctly, it will display a medium level of light, or a less bright color. If not polarized properly, the light will not pass the surface, and no color will be displayed.

1927: Vsevolod Frederiks in Russian devised the electrically switched light valve, called the Fréedericksz transition, the essential effect of all LCD technology.

1967: Bernard Lechner, Frank Marlowe, Edward Nester and Juri Tults built the first LCD to operate at television rates using discrete MOS transistors wired to the device.

1968: A research group at RCA laboratories in the US, headed by George Heilmeier, developed the first LCDs based on DSM (dynamic scattering mode) and the first bistable LCD using a mixture of cholesteric and nematic liquid crystals. The result sparked a worldwide effort to further develop LCDs. George H. Heilmeier was inducted in the National Inventors Hall of Fame and credited with the invention of LCDs. Heilmeier’s work is an IEEE Milestone.

1979, Peter Le Comber and Walter Spear at University of Dundee discovered that hydrogenated amorphous silicon (Alpha-Si:H) thin film transistors were suitable to drive LCDs. This is the major breakthrough that led to LCD television and computer displays.

1972: Tadashi Sasaki and Tomio Wada at Sharp Corporation built a prototype desktop calculator with a dynamic scattering LCD and started a program to build the first truly portable handheld calculator.