3 Ways: How to Project a Laptop Screen to a Wall Without a Projector

Lugging around a bulky projector isn’t always feasible when you want to share a laptop screen with a group. But what if you could project your laptop’s display onto a wall without a projector? With a few affordable supplies and some clever positioning, you can turn almost any wall into a big screen!

Projecting your laptop screen onto a wall without a projector is an innovative way to present, watch movies, or view content as a group. In this post, we’ll explore some methods for laptop projection without a projector using items you probably have at home.

Why Project a Laptop Without a Projector?

Here are some benefits of projecting a laptop screen without a dedicated projector:

  • Avoid the high cost of purchasing a projector (average $600-$800 according to ProjectorLeader)
  • Projectors are bulky and difficult to transport to different locations
  • Get creative by using tech you already own in innovative ways
  • Great for occasional viewing needs versus buying a specialty device

What You’ll Need to Project a Laptop Screen Without a Projector?

Here is a more detailed explanation of the supplies needed to project a laptop screen without using a traditional projector:

1.    Laptop with HDMI port

The first essential item is a laptop with a built-in HDMI port. HDMI allows you to output video and audio from the laptop to an external display. Most modern Windows and Mac laptops have a mini or standard HDMI port. For USB-C only laptops, a USB-C to HDMI adapter can enable HDMI connectivity. The HDMI port is how you will connect to and send signal to the external display or projection surface.

2.    HDMI cable

To interface your laptop with the external display, you need an HDMI cable. Make sure to use a cable rated for the resolution and frame rate you want to output. An HDMI cable has connectors on each end that plug into the HDMI ports on laptops and displays. The HDMI cable carries the high definition video and audio signal between the laptop and the external device or surface. Using a sufficiently long cable allows flexible setup.

3.    External monitor/TV or white wall/sheet

Finally, you need a surface to project your laptop’s screen onto. This can be an external monitor or TV connected via HDMI that you point at a wall to show a reflected image. Or use a white wall, plain white sheet, or white paper directly as a projection screen. The key is having a bright, non-distorted surface larger than your laptop screen to project the content onto. With just these basic items, you can “project” your laptop anywhere without a real projector.

Methods for Projecting a Laptop Without a Projector

Here are more detailed step-by-step instructions for each method of projecting a laptop screen without a projector:

1. Using a Second Monitor or TV

  1. Connect one end of an HDMI cable to the HDMI port on your laptop.
  2. Connect the other end to the HDMI port on the back of a monitor/TV.
  3. Mirror or extend your laptop’s display to show on the connected screen. Do this in Windows display settings or Mac system preferences.
  4. Position the monitor/TV at an angle facing toward a blank wall.
  5. The reflection on the wall acts as a projection screen to view your laptop’s content enlarged.

2. Reflective Surfaces Without a Screen

  1. Place your laptop facing a light-colored wall at an angle.
  2. Use pieces of cardboard covered in aluminum foil to create makeshift reflectors.
  3. Position the reflectors at angles next to your laptop to best bounce and enlarge the projected image.
  4. Experiment with moving the laptop and reflectors to optimize projection size and clarity.

3. DIY Projection Screen

  1. Stretch a plain white bedsheet or large paper flat against a wall or hang securely.
  2. For rear projection, leave space between the wall and screen.
  3. Position your laptop facing the screen at a distance, angled slightly upward.
  4. Focus and enhance the projected laptop image by adjusting the angle, brightness, and distance.
  5. Consider using binder clips or tape to keep the projection surface taut and wrinkle-free.

1.     Making a Projector At Home

Here are the detailed steps to make a homemade projector with simple household items:

  1. Prepare materials – You’ll need a shoebox or similar cardboard box, black construction paper or paint, scissors, mirror, magnifying glass, ruler, tape/glue.
  2. Cut box to size – Measure your phone screen size and cut one narrow side of the box to fit it snugly. This is where the phone will go.
  3. Black out interior – Line the inside of the box with black paper or paint to absorb stray light. Let paint fully dry.
  4. Add magnifying lens – Trace the lens on the box’s cutout and cut to fit. Install lens in the middle of the cutout.
  5. Make inner box and mount lens – Make a slightly smaller box to fit inside the main box. Cut flaps to hold the lens and glue in place on the flaps. This allows focus adjustment.
  6. Install mirror – Place mirror on the opposite side of the box from the lens at a 45 degree angle to reflect the image.
  7. Cut window for phone – Above the mirror, cut out a rectangle the size of your phone screen. This allows the phone’s image to transmit.
  8. Insert phone and adjust – Place phone inside box and adjust position/focus by moving the inner box and lens until a clear image is projected.
  9. Decorate exterior (optional) – Customize the look by painting or adding embellishments to the projector exterior.

And that’s it! With some basic crafting you can build a homemade projector to display your phone’s screen onto walls. Have fun and get creative!

Tips for Best Results

Here are more detailed explanations for the tips to get the best results when projecting a laptop screen without a projector:

1.    Project in a dark room for clearer picture

Projecting in a dark room eliminates ambient light that can wash out the projected image. Close curtains, turn off lights, and minimize light sources to make the colors really pop and keep blacks dark. The darker the room, the clearer the projection will appear.

2.    Adjust laptop angle and distance to optimize image size

Experiment with angling the laptop screen up or down while moving it closer or further from the projection surface. Adjust to find the sweet spot where the image is centered and enlarged to your desired size. A few degrees of tilt and inches of distance can make a big difference.

3.    Clean reflector surfaces and keep them wrinkle-free

Dirt, dust, smudges, or creases on any reflective surfaces used will transfer to the projected image. Keep reflectors like tinfoil, mirrors, and projection screens clean using glass cleaner and a microfiber cloth. For sheets, gently iron out any wrinkles for a perfectly smooth image.

4.    Max out laptop screen brightness for vivid projection

Projecting reduces the vividness of colors and contrast. Setting your laptop’s screen brightness to maximum will compensate for any washed-out tones. Enable any outdoor/presentation modes to dynamically boost brightness further. This makes for a bold, vivid projected image even in well-lit rooms.

Optimizing these elements helps provide the largest, clearest laptop projection possible using everyday household items. A bit of fine-tuning goes a long way for stunning results without a projector required.

With some easy equipment, clever setup, and fine-tuning, you can successfully project your laptop screen large-scale without a costly projector. Get creative and take your portable media anywhere!

How do I Turn My Laptop into Projector Mode?

Here are the detailed steps to turn your laptop into projector mode:

  1. Connect your laptop to the projector using a VGA, HDMI, or other compatible cable.
  2. Power on the projector if it’s not already on.
  3. On your laptop, right-click on the desktop and select “Display Settings”.
  4. In the Display Settings window, click on the “Multiple Displays” drop-down menu.
  5. Select “Duplicate these displays” to mirror your laptop’s screen onto the projector.
  6. Alternatively, choose “Extend these displays” to use the projector as a second screen to extend your desktop.
  7. If your laptop doesn’t automatically detect the projector, click “Detect” to force it to scan for the connected display.
  8. You can also click “Identify” to clearly label which display is your laptop and which is the projector.
  9. Click “Apply” to save the display configuration changes.
  10. Use the projector’s image controls like brightness, contrast, and aspect ratio to optimize the projected image.
  11. On your laptop, make sure screen brightness is set to maximum for the best projected image.
  12. Try pressing the Windows key + P shortcut on your laptop to quickly cycle through display modes as well.
  13. Adjust the projector’s placement as needed to aim the image on your desired surface.

Following these steps will enable your laptop’s projection mode and allow you to mirror or extend its display through a connected projector.


A projector-free wall projection using only your laptop, some cables, and basic supplies provides an affordable and portable big-screen experience. Avoid the hassle and bulk of projectors by taking a DIY approach. Next movie night, give laptop projection without a projector a try!


Can I make my laptop screen a mirror?

On Windows, you can use the Windows Key + P keyboard shortcut to open display settings and choose how to mirror your laptop display. On a MacBook, you may need a mini DisplayPort or USB-C adapter to connect to an external display for mirroring.

How can I share my laptop screen on the wall without a projector?

You can use a Chromecast device plugged into a TV’s HDMI port to wirelessly cast content from your laptop to the TV. Position the TV to reflect against a wall for a big-screen projection from your laptop without a real projector.

Where is the mirror display setting on a laptop?

On Windows, press Windows Key + X, open Control Panel, click Appearance and Personalization, click Display, and under Multiple Displays choose “Duplicate these Displays” to mirror your laptop on an external display.

How do I know if my laptop supports wireless screen mirroring?

Go to Windows Settings > System > Display and look for the “Connect to a wireless display” option under Multiple Displays. If you see Miracast Available, your Windows laptop supports wireless display mirroring like to a smart TV.

Can I project my laptop screen with household items?

Yes, with an HDMI cable, TV/monitor, and some reflective surfaces like cardboard or tin foil, you can angle and bounce your laptop’s display to create a projected image on a wall without needing a real projector.

What’s the easiest way to project my laptop screen?

Connecting your laptop to a TV via HDMI cable and duplicating/extending the display is one of the simplest ways to project the screen. Just point the TV at a wall and you instantly have a big projected image.