Hacked LCD Monitor Only Reveals Its Contents To Its Owner


This DIY project hides your screen from everyone but you.

Tiffany Nesbit
  • 12 may 2014

There are all kinds of things you might be viewing on your computer which you wouldn’t want a passerby to know about, like embarrassing titles in your Netflix queue, bank balances, job postings, and at home remedies to cure weird personal ailments. You could certainly purchase a privacy monitor from an electronics store; they’re pretty simple to attach but cost around $100, and odds are you probably have everything you need to make your own privacy monitor at home — one that would literally only be viewable by you.


The necessary materials are an old LCD monitor, superglue, paint thinner (or another solvent), paper towels, a screwdriver or drill, a pair of old glasses, and an x-acto knife or box cutter. If you follow the steps below, posted on Instructables by Dimovi, an electrical engineer based out of Austin, you can easily create your own privacy monitor. You’ll be free to have covert TV-watching and web surfing experiences in no time.

Step 1: Using a screwdriver or drill, unscrew your monitor screen from it’s frame.
Step 2: Cut the two films from the screen with your x-acto knife or box cutter. Feel free to ditch the frosted one, you’ll only need the polarized one, but be careful to remember the orientation of the screen (which side was facing the computer, which side is the top).
Step3: Apply the solvent to paper towel and place on screen to loosen left-over glue. Once it becomes soft, scrape it off with a piece of plastic.
Step 4: Put the frame back onto the monitor and screw it back shut.
Step 5: Take the lenses out of your glasses.
Step 6: Tape the lenses to the film (making sure the film is oriented just as it was on the monitor) and cut out the lense-sized portions of the screen. If you prefer, you can also have a laser cutting service do this for you.
Step 7: Glue the film to the lenses and put the lenses back into the glasses frame. Put the glasses on and look at the monitor, only the person wearing the glasses can see what’s on the screen.

So far, over a million people have viewed these instructions. According to the comments, other than the glue taking a while to soften, they work great. For a better idea of how these glasses work, check out the video below, then try to make them for yourself.



Fitness Advocate: Paving The Future of Workouts With Audio

Fitness & Sport
Brand Development Today

Swipe Left On A Dating World Built To Keep You Single And Disconnected

Hinge's VP of Marketing Karen Fein tells us about the service's daring ditch of the swiping culture that's designed to attract advertising revenue, not meaningful connections

Arts & Culture Today

Marvel Comic Tells The Story Of A Heroic Syrian Mother

Madaya Mom is the true tale of a family trapped inside a town for over a year


Get PSFK's Related Report: Future of Automotive

See All
Retail Today

Brooklyn Cafe Lets Customers Pay By The Hour, Not By The Cup

Glasshour is an establishment that provides free coffee and pastries and charges for the time guests spend there

Technology Today

Electric Spoon Changes The Way Food Tastes

The Taste Buddy is being developed to manipulate your taste buds and make everything more delicious

Related Expert

Will Berman

Teenage Denim Fashion Designer

Travel Today

Bike Path In Poland Can Glow For 20 Years Using Solar Power

Cyclists can follow the shimmering blue lanes for better safety each time they ride

Technology Today

Open-Source Toolkit Lets Communities Build Their Own Street Furniture

The Wikiblock database contains 30 blueprints of different neighborhood fixtures including benches, bus stops, and kiosks

Food Today

Tiny Pub Only Has Space For Three People

Make Time For It is a small London pop-up bar that encourages conversation without the distraction of technology


Future Of Automotive
Scenarios Driving The Digital Transformation Of An Industry

PSFK Op-Ed Today

Community Builder: How to Hack Slack

Claire Wasserman, Founder of Ladies Get Paid, describes how she's using an internal team communication tool to build a network of thousands

PSFK Labs october 21, 2016

PSFK Picks: Top 5 Performance-Enhancing Wearables

Our new report looks at innovations pioneering the future of performance through intelligent activewear and predictive analytics

Advertising Today

This Beer Was Brewed Just For Scotch Drinkers

Highland Park Scotch Whisky & Sixpoint Brewery have teamed up to create two limited-edition pairings for New York City boilermakers

Mobile Today

Let An AI Librarian Help Sort Your Digital Bookmarks

A new app uses machine learning to help organize your virtual life

Mobile Today

Pizza Hut Tattoo Lets You Place An Order From Your Body

The latest gimmick from the fast-food chain is a tattoo-like sticker that lets customers get delivery with a simple tap on their arm

Travel Today

Reinvented Bicycle Inspired By Supercar Design

The yellow bike based on a Lamborghini has sharp edges and an aluminum alloy frame

Health Today

Health Platform Gives Perspective On Your Weekly Habits

Gyroscope is a new wellness app that works by amalgamating data about your life into beautifully designed visuals

Beauty Today

Korean Beauty Brand Uses VR To Let Customers Pick Their Ingredients

Innisfree created a unique experience for its Shanghai Disneyland customers with a virtual reality trip to select what goes into their purchase

Arts & Culture Today

3D-Printed Creations Resemble Floating Paper Outlines

Japanese design firm Nendo's exhibition features works that look like sheets of material being folded, torn, and crumpled

Technology october 21, 2016

Concept Camera Designed To Only Take Unique Photos

Camera Restricta is tool that prompts photographers to only capture one-of-a-kind images

No search results found.