You and your friends were going to watch a movie, but the projector broke. Online,
projector prices vary, but most of them are expensive. Don’t worry, because even if you
don’t have a projector, you can still watch. Our experts wrote down the ways you can
project your laptop on a wall without using a projector.
How to Make a Simple DIY Projector
Table of Contents
- How to Make a Simple DIY Projector
- Tools and supplies
- Build A Smartphone Projector!
- Step 1: Measure the box and the mirror.
- Step 2: Stick the black paper on or paint it black.
- Step 3: Turn down the lights
- Step 4: Put on the lens
- Step 5: Cut a hole for the phone
- Step 6: Change the rest of it
- Step 7: Set up the phone or laptop
- Changing the focal point
- Making a Projector with a Flashlight
- How do I flip the screen on my laptop?
- How to Project Picture on Wall from Phone Without Projector?
- FAQs on How to Project a Laptop Screen on a Wall Without a Projector?
- What are some other things you can use instead of a projector?
- How can I project my laptop onto a wall?
- What can I do if I don’t have a projector?
- How do I set up my phone as a projector? What apps can I use?
- Conclusion on How to Project a Laptop Screen on a Wall Without a Projector?
People have used projectors a lot because they make it easy to show what’s on your laptop
screen on a bigger screen. Most people use them to watch movies because they have a big
screen and high-quality pictures. But most people will need to hook it up to external
speakers to hear the sound.
They are slowly taking the place of TVs in home theaters. It can be expensive to buy a
good projector, though. So, making your own mobile projector can be a good way to save
Tools and supplies
Before you can project showing what’s on your laptop screen on a wall without a
projector, you need to make sure you have everything you need. Here are the things you’ll
need to make a cheap do-it-yourself projector.
⦁ Tape (Double Sided)
⦁ Pencil / Ruler
⦁ Glue stick
⦁ Precision knife
⦁ Box of cardboard
⦁ Black paper with a matte finish
⦁ A magnifying glass, preferably a big one
All of these things are found in most homes. If you can’t get some of the things you need,
you can use things you already have at home to do the same job. You can use this method
to make your own laptop or a phone projector out of cardboard. So, once you have
everything, you can start your project.
You don’t have to be creative to do this, so don’t worry. You just need to follow the cost-effective steps for how to project a laptop screen onto a wall without a projector. You will
only need to use your decision-making skills when looking for a replacement for the
things listed above.
Build A Smartphone Projector!
Related: How to clean a laptop fan?
Step 1: Measure the box and the mirror.
The first step is to choose the size of the box you will use. It should be big enough to hold
your laptop or cell phone and have a magnifying glass. Inside the container, a light source
will be used to shine through the magnifying glass.
Make sure you use the right size box; a long box is best. It lets you set the right distance
between the laptop and the lens. This will give your projector a focus that you can change.
If you’re using a laptop, use a lens that is the same size as the screen.
Put the lens in the middle of the box’s narrow side and use a pencil to trace the shape. If
you want your image to be brighter and of better quality, you need a light source that can
send out more light rays.
Step 2: Stick the black paper on or paint it black.
For the best projection, you should cover all the walls inside your cardboard box with
black paper. This will stop any light from being bent and give you a clear picture.
Think of it as a movie theater that is completely dark on all sides. The mini-theater will be
this cardboard box.
You can use black paper or black matte paint for this. If you are using black paint, just
paint all the inside surfaces of the cardboard box. After you’ve painted all the sides, set it
aside for a few hours so the paint can dry.
Don’t forget to cover the lens and keep the paint from getting on it. You can use paper to
cover the lens.
If you’re using black paper, stick it together with the gum on the back, then press it to
make it firm. You have to make sure that none of the paper is loose or hanging because
that would make it hard to project.
You can also put glue on the inside of the box first to make it stick better. But you can’t
use the tape because it’s shiny and will cause problems if you put it in your homemade
Step 3: Turn down the lights
Start cutting the outside box open from one corner with the precision knife. This is best
done on the edge of the box so that the walls of the box don’t get damaged. Cover the
inside of the container with a thick piece of black paper or a piece of matte black paper.
Don’t forget to put glue on the paper so it stays where you put it.
The black paper will keep the light from being reflected by the box’s walls, which will
make the light dim. The best picture will then be made, which will be shown on a big
Using black paint is another choice. Just paint the inside of the box black, and then let the
paint dry. Just make sure that all the sides that touch each other are black.
Step 4: Put on the lens
Follow the line you made with the lens to cut the box. Our experts say that the hole and
the lens should both be the same size for the image to come out right. When you are done,
put the lens in the hole you made.
Step 5: Cut a hole for the phone
On this part, you will need to make a manual focus for your phone screen that can be
changed. In this step, you will need to make and use a second box that goes well with the
Take a small box that can fit inside the big box. Then, cut a hole in one side of the box that
is the same size as the screen on your phone. You also need to make sure that the second
box doesn’t have anything shiny on it so that the projector doesn’t get messed up.
Step 6: Change the rest of it
Now that the projector is finished, you can change the project’s smaller parts. If you use a
shoebox, you might have to cut a hole in the lid so it doesn’t cover the magnifying lens.
Step 7: Set up the phone or laptop
Once everything is ready, you can put the laptop inside the box. Start watching a movie,
and the picture will get bigger and bigger until it fills the whole wall. But if you don’t
change any settings, the image you see will be backward.
Find the video editor on your laptop to make this right. Start a new project, and then give
this one a new project. Bring in the video and choose it from the library of Projects. Press
“Ctrl” and “R” to flip the screen so that it’s on its side. Keep the movie.
The next picture you see on your laptop screen will be upside down, but when you project
it on the wall, it will be in the right place. Users of Windows 10 can save time by searching
for “display settings” and hitting “Enter.”
If you want to use a cell phone, turn off the auto-rotation feature and hold the phone
upside down. The results will be the same if you do this on a laptop.
Changing the focal point
Now, give your projector a try. Play a movie to see how good the picture is. If the quality
isn’t very good, move the laptop away from the phone to change the focus. Adjust it until
you achieve your desired image.
Since the laptop or phone will need to be in a container, you might need an external
speaker to get a loud sound. This will keep the sound from getting out. You can connect
the devices with a VGA cable if your speaker has a VGA port.
If you don’t have a VGA cable, check to see if an RCA or HDMI cable will work.
(Here is a page about VGA max resolution if you want to learn more about VGAs.)
Making a Projector with a Flashlight
Our experts suggest a fun way to project a laptop screen to a wall without a projector. For
this, you will need a Fresnel lens and a flashlight.
Using the lens mentioned above, point the flashlight at the wall so it can act as a
magnifying glass. You will have to change how the lens is aimed until the image you see is
what you want.
By making these projectors yourself, you won’t have to decide which ones to buy. You can
have a good time watching when you go to the movies or even at birthday parties.
These do-it-yourself projectors can also be used outside, much to the delight of the
viewers, but the quality isn’t as good as commercial ones.
How do I flip the screen on my laptop?
If you don’t know how to turn the screen on your laptop, you’re in the right place. We’ll
show you step-by-step how to rotate your laptop screen.
You can either use a video editor to rotate the videos or flip the screen of your laptop,
which you can do after you’re done watching the movie.
If you want to flip the screen, it’s a very easy thing to do. What you need to do is:
Go to the Start menu and click on the left-most tab to open the Control Panel.
After that, go to the Display settings.
Find the option that says “Change the Display’s Orientation.”
You just have to choose “flipped landscape.”
If you don’t have Windows 10, you can still find the Control Panel, and the rest of the
steps are the same.
But flipping the screen can be annoying because users have to change it over and over
again. So, why don’t you switch around all the videos you plan to watch on the projector?
The steps are easy. Open the Video Editor that Windows 10 already has. If you don’t have
Windows 10, you’ll have to download and install the software to edit videos.
Once you’ve opened the video editor, load the video you want and then press “Ctrl + R” to
rotate it. Then save the video to your drive as a new file.
If you play this video rotated, you can get the best picture from your DIY projector when
you project it.
How to Project Picture on Wall from Phone Without Projector?
How to project from a cell phone is pretty similar to how to do it from a laptop, which we
talked about above.
You’ll just need a smaller box, like a shoebox, and a smaller lens. The lens should be about
the same size as the screen on your phone, or you can just get a magnifying glass and cut
off the handle. Put the glass on the shoe box’s end.
As I said, the process is the same as the one I described above. You just need to make
everything smaller. The rest doesn’t change.
You can also make a stand for your cell phone so that you can move it easily inside the
box. This will let you change the size of the screen that is being projected.
Make sure your screen is as bright as it can be so you can see the picture clearly on the
So, you can make a smartphone projector with just a few simple items from around the
house. This will make it much more fun to watch movies at night on a big screen on the
FAQs on How to Project a Laptop Screen on a Wall Without a Projector?
What are some other things you can use instead of a projector?
There are other ways to project an image then using a projector. With a lens and a
flashlight, you can make your own projector box and put large images on the wall. You can also do the same thing with a fresnel lens.
How can I project my laptop onto a wall?
Well, you can do that in two ways. You can either buy a projector or make one on your own at home. Since projectors cost a lot of money, you can go with the second option. In the article above, we explained in detail how to make one.
What can I do if I don’t have a projector?
Simple office supplies and a magnifying lens can be used to make a projector that you can use. The projector costs less and is easier to put together. To make a projector for yourself, just follow the steps we gave you above.
How do I set up my phone as a projector? What apps can I use?
You can set up your phone to work as a projector with certain apps. The following
programs are made especially for Android OS mobile devices. MultiPresenter, ClickShare, Epson iProjection, and Panasonic Wireless Projector are all part of the package.
Conclusion on How to Project a Laptop Screen on a Wall Without a Projector?
You can watch movies even if you don’t have a projector. Our experts have put together a
list of ways you can project a laptop screen onto a wall without using a projector. You can
make your own with a box, a lens, and your laptop or phone. This will show a bigger
picture, similar to what your projector does