There are many ways to share your mobile screen with audiences. One of them is using a projector, but it’s very expensive and difficult. So here I would like to introduce a great way to project a mobile screen on a wall without using a projector.
How cool is that?
How to Project Your Mobile Screen on a Wall Without a Projector
Honestly speaking, you cannot hope for magic to take place here because the real world doesn’t work like that. There are two main reasons why people struggle to project their screens without a projector. First of all, they have little to no knowledge in the area of projecting screens. Secondly, they do not have enough budget for buying expensive equipment.
So how can you overcome this obstacle? Well, it’s very easy actually because here I am going to share a few simple steps that you can follow. They will lead you to create your very own projector without investing too much money or time.
Note: This is going to be a DIY project, so get the following supplies before we start.
Things you need
- A magnifying glass to act as magnifier and projector of your phone screen.
- A black foam board to make the phone stand
- Shoebox – clean and tight; not wobbly; a new one is preferred.
- Masking or two-ways tape for obvious purposes of binding things
- Cutter to cut things in shape
- Black sheet to cover the interior of the box. Reducing image noise as much as possible is important. What is image noise? It is the distortion of the quality of the image when the light is scattered on the white surface, which in our case are going to be the walls of a shoebox.
- Your phone (Android or iPhone)
- Ruler to measure things perfectly
- Glue gun (duh!)
- PVA Glue
Your Own DIY Mobile Projector
Step 1 – Use a hacksaw or any other sharp object to remove the handle of your magnifying glass
Please be very careful when you’re handling the saw or cutting the handle altogether. What you can do is place the magnifying glass on a table with its handle sticking out and use the saw to gently remove it. Make sure that you carefully remove the handle right on the point of attachment – not too further into the glass because it will definitely shatter it and not too towards the handle because you’d have a hard time setting it up in the box.
Step 2 – Secure the box’s flaps with PVA glue to save it from wobbling later
PVA glue is very useful for many things, but it’s especially important here. It will help you to hold the box tightly without making any cracks or letting it wobble during projection so your audience won’t notice it. It will also make it more stable when you’re cutting a huge hole for the magnifying glass.
Step 3 – Place the magnifying glass on top of the shoebox and draw its outline with a pencil to know where to cut
You have just noticed that you cannot project the screen with the glass sideways because it distorts everything. So here is what you can do – place your phone on top of the box and then use a ruler to measure how high from the bottom your magnifying glass should be so you can have a clear view.
Now you can go ahead and make a stroke with a pencil on the shoebox where you need to cut it. But do not be hasty, take your time to measure again just in case because once you start cutting, there is no going back.
Step 4 – Use the hacksaw/cutter/x-acto knife to cut the outline you drew
Be very careful here because this is not a simple DIY project, it’s more like surgery. Once you start cutting, there is no stopping until everything goes smoothly. If anything interrupts or does not go as planned, you need to stop and carefully think of continuing.
When I was creating this project, I used the x-acto knife. I placed it carefully into a compass and traced the round outline for my magnifying glass. It was done in no time.
Step 5 – Use hot glue to secure the magnifying glass on the cutout
The sides of a magnifying glass are huge as you might have noticed. So, even if you couldn’t cut out the hole properly, you should still be good to go.
I can’t see from here how you’re doing it or will do but trust your process. Glue other things around it to secure the potential gap, if any.
Now close the lid on the box and you’d see that the lid is intruding the top of the hole. Don’t worry and use the cutout piece of the box to trace out the intruding area. Use the x-acto knife or cutter to cut that part out.
Step 6 – Make a phone stand from the foam board
Measure the inner width of the box by placing the ruler on top of it. Also, measure the height of the box by placing the ruler sideways. Use these measurements to cut the black foam board. You should get a square by the end of it.
Cut a small piece to make the base of the stand and use hot glue to bind them together.
Do check the phone stand inside the box and cut any part of it peeking out. This is to make sure that there’s no obstruction for the box lid.
Step 7 – Cut strips of double-sided strips/padding tape to secure the phone on the stand
Take two strips and stick them right on the center of the phone. Afterward, align the phone to the magnifying glass by setting up the phone stand inside the box. When done, stick the phone right at that place.
Step 8 – Use black paper to cover the interior of the box
The interior of the box shouldn’t reflect any light because if it does, the image would be a little distorted. Use black paper to cover it up – no need to make patterns or anything fancy here. Just make sure that the surface is not shiny at all for it would reflect on the real screen and ruin everything. You can use hot glue to stick it around the box. There’s no perfect way of doing it. Just slap the sheet around the box and it will do the job.
Step 9 – Calibrate your new awesome DIY projector
Just as with other projectors, your new one should be calibrated for focus too. Doing that is easy. You don’t need to stick the phone mount at all as it stays in its place without effort. Move the stand back and forth until the image on the wall is focused.
Step 10 and final – Set up the phone and enjoy
If you’ve Android, rotating the phone to landscape should be easy. Just bring the drop-down menu and tap on the auto-rotate screen button to unlock it.
On iPhone, go to General > Accessibility > Assistive Touch > Device > Rotate the Screen According to Your Preference.
Now your phone should display the content in landscape. Also, make sure that the brightness is set to the max to allow as much light as possible to pass through the lens.
Coming towards the audio, if your phone’s speakers are loud enough or if you’re okay with the sound they produce, then there’s no need to connect external speakers. If you want to connect them, then cut a small hole beside the phone stand in the box where it is easy to reach the audio jack. Pass the speakers cord through the hole to connect them to the phone.
Now play your movie or YouTube and close the lid. Enjoy with some popcorn and friends!
1. Can we project the laptop screen on the wall?
Yes, you can project the laptop screen on your wall by using the steps mentioned above. However, a magnifying lens that big would be costly. It may be hard for you to find a big box, especially if your laptop is 15″ or 17″.
Alternatively, you can connect your laptop to a real projector by a VGA cable. Some modern laptops do not use VGA cables. Instead, they use a USB connection. You may have to buy a VGA to USB converter if your projector does not support a direct USB connection.
I prefer the second method to do things the right way because it’s a laptop we’re talking about. But if you still want to project your device’s screen, I prefer that you transfer the file to your phone and then make your DIY projector.
2. How do I project my mobile screen on the wall?
You could either mirror your phone’s screen onto your laptop and then connect that laptop to a projector or you could make a DIY projector out of simple things. All you need is a shoebox, black paper, a black foam board, a cutter, glue, and a magnifying glass.
As to how to put those things together to make the projector, please follow the steps above. I’ve explained things in great detail so that you might not have any problem whatsoever.
Make sure that you follow everything rightly because a single step could ruin things for you. Also, take great care when handling sharp objects. You wouldn’t want to end up in a hospital.
The single most important step to focus on is readjusting the focus of the image on the wall. That makes the experience all the more worth it.
3. How do I project a video or image without a projector?
Projecting an image without a projector is relatively easy. You need a few supplies to get started. Take a shoebox, cut out a round hole for a magnifying glass in one of the short sides. Take black foam board and make a phone stand with it but make sure that you stick two pieces perpendicularly with great accuracy. Now with the help of black paper, cover the entire interior of the box to minimize reflection for minimum image distortion. Afterward, focus the image on the wall by moving the phone stand back and forth in the box. Close the lid and enjoy.
Seems too hard to do? Worry not as I’ve explained these steps above. Follow them one by one and you’ll create a projector in no time.
4. How do I turn my phone into a projector?
You cannot turn your phone into a projector no matter what some apps say. To project things from a device, there has to be some mechanism, and phones these days do not come with one. There are projectors for that.
If you can afford one, well and good. If not, then making your projector is quite easy. You need a few supplies to do that. A shoebox, some black paper, black foam board, glue, a magnifying glass, your phone, ruler, and that’s it.
- Make a hole in one of the sides for the magnifying glass – the shorter side.
- Secure the glass with glue and cover the entire box with a black sheet.
- Make a phone stand with two perpendicular pieces of black foam board and stick the phone with two-sided tape. Make sure that the phone is right in front of the glass.
- Adjust the focus of the image on the wall by sliding the stand back and forth. Once done, close the lid and enjoy your movie on the wall without investing in a heavy projector.
It was all about how to project phone to wall? While it is satisfying and convenient to own a projector, it is still possible to project your movie on the wall without it. Follow the steps above and you should do well. Please be careful when handling the stuff because I want you to successfully project on the wall rather than hurt yourself.
If you still need explanations for the above steps, read the article above. Happy projector-making!