can you make an lcd touch screen in stock

“All these devices around you have all these signals coming out of them, and we ignore them because we think they’re noise,” says Sidhant Gupta, a PhD candidate at the University of Washington’s Ubiquitous Computing Lab and one of the co-authors of the paper.

While touch screens are the norm on smartphones and tablets, they’re still not common on TVs, computer monitors, and other big displays. Existing methods that turn passive LCDs into touch screens typically use cameras or other sensors, but they’re not always practical. The group’s findings, explained in a paper that will be presented in May at theComputer Human Interaction conference in Paris, could eventually be used to cheaply add touch and gesture interactions to TVs, computers, and much larger displays, too.

Gupta says his group’s method works by measuring signals that are normally given off by an LCD display and how they change when a user brings a hand near the screen. These signals show up as electromagnetic interference, and can be measured with a $5 sensor that plugs into a wall outlet.

In the study, users’ gestures and touches controlled an on-screen video player. Information about how the user’s actions changed the LCD’s electromagnetic interference was gathered by the sensor, and then sent to a connected PC, where software isolated the display’s signal and tracked how it changed over time. The software used machine learning to predict if changes were simply “noise” or one of five gestures and touches that it had been set to respond to. Once the touch or gesture was determined, it would elicit an appropriate on-screen response—like pausing or resizing a video.

The system can tell the difference between different displays, since each has its own electromagnetic interference “fingerprint,” and a single sensor can be used to track interactions on numerous displays. Eventually, Gupta says, the sensing and processing could be done in a single unit that’s plugged into a wall socket.

The technology won’t make a noninteractive display as touch-sensitive as an iPhone or Android smartphone. The gestures are much simpler than the complex swipes and pinches you can make on those gadgets.

Still, Gupta can imagine it being used to do things like make large screens at museums interactive. It could also be used to add interactivity to other devices that emit electromagnetic interference—something Gupta and some of his uTouch colleagues explored in an earlier project called LightWave that uses a plug-in sensor to enable compact fluorescent lightbulbs to sense human proximity.

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Touchscreen technology is everywhere these days. Consumers expect it and it does wonders for user experience. But to keep up with the competition and engage with your customers in this way, do you need to invest in a complete technology overhaul or is there another option?

So, the question is, can you transform your existing screens into touchscreen-enabled devices? Fortunately, you can—though this isn’t as simple as just getting out your toolbox. Here we run through the possibilities for turning your existing screens into a touchscreen with Pro Display.

At Pro Display, we’ve developed a range of Interactive Touch Overlays which work with both LCD and LED displays, as well as a variety of other screens which are currently being used across a range of sectors from retail, hospitality, healthcare to name a few.

The concept is simple, the interactive touch capability is overlayed on your existing screen turning it quickly and simply into a touchscreen. For example, Interactive Touch Frames work with existing hard surface screens and offer 6, 12 or 32-point touch points. The technology is super-simple – USB plug and play – and we even provide custom sizes. An alternative option is our Interactive PCAP Touch Overlays which provide a toughened glass surface for any LCD screen or display, offering up to 40 touchpoints.

Our Interactive Mirror TV Overlay even enables you to turn a mirror into an interactive screen, while our Interactive Touch Foils mean touchscreens (on any LED and LCD screen) can be interacted with through glass – ideal for retail window displays.

So, which technology is right for your needs? That depends on the type of screen you have and the purpose. Let’s look into the technology a little further.

Our Interactive infrared touch frames can turn any screen into a touchscreen. This technology is compatible with any LCD, LED or Projection display. It comes as a retrofit kit that can be installed in minutes – all you need to do is connect the USB cable and the touch functionality immediately works without the need for drivers.

This means you can add interactive functionality to any flat screen or flat surface. With no need for any significant investment or new kit, you can quickly increase engagement and create new solutions to connect with your customers.

Another option for either LED or LCD TV screens to become touchscreens is to use a glass interactive touch screen overlay. This toughened glass can be retrofitted to the TV screen – either permanently or semi-permanently – to create a multi-touch interactive display and is ideal for soft surface monitors that require an extra layer of protection.

These are ideal to use in TV studios (think Sky Sports) or as part of interactive displays in retail, museums and galleries, and airports as well as train and bus stations.

In more recent times post COVID, it’s essential to offer the touchscreen experience, but without the need to even touch the screen. Whilst that might sound slightly counterintuitive, it will likely be extremely valuable for retail for example in the current climate.

Interactive touch foils utilise PCAP technology and work with standard LCD / LED displays transforming any glass or acrylic surface into a touch screen. This effectively means that users standing on one side of a window can interact with a screen behind the glass in just the same way they would with a touchscreen. The touch foil is optically clear and manufactured with an electrostatic adhesive layer which is laminated to the surface and is suitable for permanent or temporary installations.

Touchscreen technology is evolving rapidly. A mere 20 years ago, touchscreen-enabled mobile phones were a distant dream—nowadays, however, they’re commonplace around the world. With the possibilities for touchscreen technology in leisure, retail, education and workplaces it’s something that’s becoming essential in many areas of our lives.

And with more and more technology hitting the market, the future looks very bright for touchscreen technology. To find out more about the touchscreen technology available from Pro Display, or if you want to stay on top of all future developments, get in touch with us today.

I"m using it to run a lighting and irrigation system for my house. The color graphical interface allows me to use BMP images of my house and yard for control screens, and its built into an enclosure set into the wall for a slick professional look. I even put an access from the backside of the wall for wiring it without having to remove the Pi or the touchscreen.

Great responsiveness, inexpensive, can"t beat 10-finger multi touch! The python demos are really neat, too. Only gripe is that the screen isn"t oleophobic, but for the price I"ll take it!

This was easy to install and it looks good. The Touchscreen is responsive and clear, but you might want to use a stylus. The only issue i had is finding a case for it. You"ll want to get one right away, unless you have a 3D printer to make one yourself. The screen is really thin, so I didn"t want to carry it around without some protection. Overall, it"s a great touchscreen, especially for the price, and I like that it is Raspi-branded.

I purchased 5 touchscreen. Two before and three in January. Touch and display quality is superb. After two-three month of use (no rough use; handled with care), display LCD and front touchpanel (black bezel) break apart. They both are connected using a thin double sided tape. I was planning to use in industrial environment but after such issue, I dropped my plan to use it in industrial environment.

Five of two displays are not in good condition. First display"s touch-panel and display LCD was break apart after two-three month. The second among five displays had another issue. Display LCD was mounted slightly right side of the touchpanel. Once you power-up display, it is easily be seen that LCD panel was a bit off-side. The other display"s screen guard having so many scratches on them which seems mishandling.

I got a couple of these for several RPi projects that Im developing and they are working amazingly well for the application. If these fit your application needs I wouldn"t hesitate to recommend them.

This screen worked right out of the box! Touch worked great with my new pi 3! However aside how fragile the (non functional) edges are, the only real issue I see is upon shutdown of the pi... The screen goes through a series of screen washes/whiteouts and never really shuts off.. I have to pull power to get it to turn off.. I"ve even tried usb/provided jumper wires.. And both results in the same thing. Not sure if this an issue per se, but it is bothersome.. I can just turn the unit off, I need to unplug it too..

I am using Raspberry Pi 3. The display came up with no problems. I am just waiting for the Smarti Pi Touch enclosure (pre-ordered after the Kickstarter project closed) before continuing to work with it.

Basically, it "does what it says on the tin". It"s bright, relatively responsive and has acceptable color. Haven"t played much with the touch screen part of it yet, but very pleased so far!

The only question(s) that I have are regarding what sort of additional processor power is inside the screen, and whether powering it from the micro-usb connection whilst also bridged from the RPi3 is an issue (it hasn"t hurt anything, yet!).

No convenient mounting points - like a screw hole in each corner, or similar. I still haven"t figured out a good way to mount it in a non-standard box.

I WAS DISAPOINTED THAT THE UNIT DISPLAYS EVERYTHING UPSIDE DOWN. I HAD TO USE THE LCD_ROTATE=2 COMMAND IN CONFIG.TXT TO FIX IT. THE INITIAL BOOT IS STILL UPSIDE DOWN BUT I GUESS AFTER IT READ THE CONFIG.TXT, IT FLIPS. SHOULDN"T IT COME STANDARD RIGHT SIDE UP?

Hmmm, it should, and this isn"t an issue we"ve seen before. I would suggest getting in touch with our Tech Support team, they should be able to help you out.

Works like great. I also bought the case Which I love except you can not get to the SD card once it build. I use a small wireless keyboard so it nice combo. I Can Throw it in my back pack when I go to work too. This allow me more time to play with it.

With so many, phone and tablets that have hi res screens, this is disappointing. It does what it"s supposed to, but has a retro look. Non techy relatives are not impressed.

The must annoying feature is the bright white screen when it loses signal as the OS shuts down. The touch input is inconsistent as input. I was using the I2C for a device was not able to get it going on the alternate I2C, but fortunately the required clock and data are on the DSI cable ... wasted hours finding that out. An OLED display, higher res, and lower current draw would be really nice in the next version.

I forgot to check that this LCD touchscreen don"t have a case. Much better that you have a notification (e.g. recommending the user to purchase also a case) when purchasing this kind of product. But thank you for this product, I will purchase again soon.

The only minor drawback that everyone should be aware (which is to be expected, honestly) is that the display draws quite a noticeable amount of current. The SmartiPi case comes with an splitter USB cable for the power source, but if you expect to use that, be prepared with a (very) beefy power supply, else you"ll get the thunder icon on the screen all the time and a very reduced performance (Just discovered that the RPi3 reduces its own clock when power is low).

I currently power this with a separate 1.5Amp supply for the screen and a 2Amp supply for the RPi3 and everything works just nice. This totals to a whopping 3.5A, which may be overkill, but keep that in mind as a reference.

I am impressed with this screen, I also got the mating case (SmartPi Touch) and it assembled nicely. With the separate case, the included jumpers and cable are not needed. The PCB was already attached with the standoffs. The packaging was super! The screen is slightly larger than 7 inches. I measured it as 7 5/8" wide X 4 3/8 high with a diagonal measurement of 8 9/16.

Works very well, but I haven"t found reliable instructions. Internet search turns up lots of hits, mostly unreliable. Doesn"t work with the OSMC I have, and I haven"t had time to track down the problem. Didn"t find anything in the official blogs.

This official Raspberry Pi 7" touchscreens now come with the display controller already connected and mounted to the back of the display. You still need to be careful pulling forward the small black tab ends that connect a ribbon cable to the RPi.

I bought the companion enclosure as well. This Touchscreen works exactly as described. I am very pleased with the display. I ended up using a mouse anyway as the icons (while clear are very tiny) and selection areas are a bit small for fat fingers.

I connected it to a Raspberry Pi 3 B running Stretch and it seems to be working perfectly. I had been previously driving a VGA monitor from HDMI through an adapter. The RPI 7" screen started up just fine without changing or installing anything with the OS.

I connected it to a Raspberry Pi 3 B running Stretch and it seems to be working perfectly. I had been previously driving a VGA monitor from HDMI through an adapter. The RPI 7" screen started up just fine without changing or installing anything with the OS.

Based on other comments here and looking at one of these at a maker space, I bought the smartipi touch case for this; it"s strongly constructed and works great. Only issue was that I"m using this with a model 3 B+, and that takes a different door on the back than comes with the case (this is being fixed by the smartipi folks, but I don"t know the logistics of getting their new cases into Sparkfun)

It gets rid of a full sized monitor, which is great.. I gave a full system to my grandson for Christmas. After we put it together, his first question was, can I use it for home work?. All I need for it now is a Ups type battery charger for 5volts. It,s now sitting proudly on my aircraft instrument panel.

I have tried other touch screens for the Raspberry Pi. They had complicated assembly and were very difficult to get them to work. This unit was easy to install and get working, is very nice looking. I am very Happy with it.

Right out of the box it worked. Didn"t even have to do anything to the RPi (in fact, both were taken out of the box at the same time, connected, and worked on the first power up). Screen quality is good for price. Also ordered the "SmartPi Touch" case which holds everything together very nicely.

Ordered it, a Raspberry Pi 3 B+, and a power supply. (Had a mouse, keyboard, and uSD on hand.). It came a couple of days ago, and I put together yesterday. Had noticed in the documentation that there"s a micro USB power input, and a standard USB output. In the configuration where the power supply is plugged directly into the Pi and the LCD interface is powered via a USB cable plugged into one of the Pi"s USB ports to the LCD"s micro USB, the LCD won"t light up at all. When the power supply is plugged into the LCD controller board and the USB cable connects power to the Pi, I get "low voltage" warnings (yellow "lightning bold"). When I use the provided F/F jumpers, it works fine, but this will cause problems plugging in other "hats", as well as clearance problems. (In my application, separate power supplies would be a BIG PROBLEM.) BTW, I checked with two different USB cables, and got the same problems as well as when I tried an Adafruit 5.25V power supply. (I was about to try a second RPi3B+ when the original one stopped booting. Fortunately I had another that I"d been using as a "pass-around" sample at talks, and fortunately when I tried it, it still worked, so now the "dead" one will be passed around!) Also, it could prove really useful to know what size those mounting screws are in case they get lost! Ace Hardware recently opened a new store about half a mile from my house!

The screen is portable enough to take with you and the Pi will use it with no configuration change when it"s powered up. Used it to set up several Raspberry Pis in a remote lab. Touch screen is nice but bring along a keyboard if you have to do any setup work. One thing to make it better, replace the jumper wires with a ribbon cable connected to 1x5 and 2x2 pin headers.

I have a Raspberry Pi in each room of my home and they run a Kiosk interface for home automation, cameras and more. I"ve tried some cheaper ones and none have survived. (I"m hard on equipment) I haven"t managed to break one of these yet.

Got a PI3+, 7" touchscreen and SmartPI case for manufacture test. I put these together and booted the latest Raspbian. The LCD and touchscreen connect to the display connector using a short FPC cable. The display booted and the touch screen just worked out of the box. There were some nice but not well documented improvements. They provide a Y USB cable to power both the PI and the LCD. This is a cleaner solution than the jumper wires they provide.I"m not a big fan of using lego blocks in a industrial environment but the case went together easily and does a decent job of protecting the display and the PI. Some reported a inverted display issue but that seems to have been resolved.

A truly plug-and-play display for the Raspberry Pi. Does not steal any additional extension connector pins if you power it with a USB power supply and leaves the I2C1 interface available for other devices.

Big enough for somewhat squinting actual Raspberry PI development and computer work, but really shines for touch screen optimized large button control panels.

You can just install a Pi3 or 4 on the back, but with a 4 you really need some additional airflow. The SmartiPi Touch 2 enclosure works better. https://www.sparkfun.com/products/16302

It works fine, no glitches, no problems, no hair pulling moments. Once electrically connected to my RPi 3B+ it"s good to go. I run it with the "lite" version of the Raspberry Pi OS with only xorg drivers installed, no full desktop or windows manager, as part of an in-the-field project with a HQ camera attached. My only complaint is the ribbon cable could stand to be about 6 inches longer.

It works great, the colors are beautiful, and finger touch works fine. What I like most is that the Raspberry Pi GPIO pins are all still available - except for one +5v pin and one Ground pin. Both are redundant (i.e. others are available). So, this is not an issue at all. I also like that data connects to the Pi via the IPS ribbon cable. Another thing I like is that power connects to the Pi via two jumper wires. The Pi is fussy about its power supply voltage. So, the jumper wires are better because they are heavier gouge than a small PCB trace.

I connect a Pi v4 and put the whole thing in the SmartPI Touch 2 case from Sparkfun and now it looks pretty professional. Make sure you use a good power supply.

Where is the documentation? This thing is so poorly documented it"s almost a joke. The whole point of the RPi ecosystem is to enable Makers and learning about electronics, so why isn"t this fully documented?

I used this to build a portable utility/testing device for my company. It works fantastic with the SmartiPi Touch Pro Case on Amazon. The touchscreen functions great, only thing is you can"t register mousedown and mouseup events in Chromium (only click). Other than that it"s great!

I got it working the first try, easy to follow instructions. Trying to learn Kivy with Python for touch screen programming, That"s a lot more difficult.

It"s bright, clear, good color rendition. Touch input is responsive and accurate. Trivial to assemble and get going. Like the multiple power options. Would buy again.

The only drawback is that I wish there was a case I could purchase for it. I have seen 3D files for printing your own, but I do not have a 3D printer (yet).

One World Touch, LLC carries a variety of touch screen products including: LCD Touch Monitors, Large Touch Displays, 4K Touch Displays as well as Touch PCs and accessories. We cater to most industries including, but not limited to: Gaming, Medical, Hospitality, Real Estate, Government and Manufacturing. Many of our monitors are TAA Compliant.