You stepped on your laptop or dropped it, and now the screen is cracked, dark, or showing black lines where the backlight broke. This page tells you what is safe to do right now and how to get a clear display back.
In short: A cracked LCD panel cannot be repaired like a piece of glass; it must be replaced. Your immediate goal is to back up your files and use an external monitor while you arrange for a new screen. You can replace the panel yourself if you have the right tools, or take it to a shop for a professional fix.
Quick picks
Our shortlist for this job · tap one to see today's price
FHD IPS panel for 15.6-inch laptops; replace your old cracked screen with this exact size.
Precision screwdriver set with spudgers for removing the back panel without scratching the frame.
Portable 15.6' monitor connects via USB-C or HDMI so you can keep working with a clear screen.
Why Your Screen Broke After Being Stepped On
When you step on a laptop, the pressure usually cracks the outer protective glass or the LCD panel itself. The “black lines” or dark spots you see are liquid crystals leaking inside the screen. Unlike software glitches, physical damage does not fix itself. The other half of this decision is black screen active system.
- Outer glass crack: The screen still works, but you see spiderweb cracks. This is the cheapest fix (glass replacement).
- LCD panel failure: The image is dead or showing large black/colored patches. The entire panel must be replaced.
- Backlight damage: The screen is dark but you can see a faint image if you shine a flashlight on it. The LED strip inside the panel is broken.
Check if you can still see the desktop faintly by shining a flashlight against the screen. If you see the image clearly, the panel works, and it might just be the backlight or external cover. If you see black or color bleeding, the panel is broken. For the detail, see our notes on using certified replacement parts.
Safety first: If the laptop feels hot or the battery area is bulging, do not open it. A swollen battery is a fire risk. Contact a professional immediately.
Back Up Your Data First
Before you touch any parts, save your work. If the screen is unusable, you cannot see what you are clicking. This is the most important step to avoid losing files.
- Connect an external monitor using HDMI or USB-C. Press Windows + P and select Duplicate or Extend.
- Use the external screen to copy your important files to a USB drive or cloud storage.
- If you have no external monitor, shut down the laptop, take it to a shop, or boot into a basic safe mode if you have a second screen.
Never rely on the broken screen to navigate your computer. The image may fail completely at any moment.
The InnoView portable monitor is a direct plug-and-play external display for 15.6-inch laptops; it lets you keep working immediately while the broken screen recovers or
- InnoView laptop screen extender is no need of app and drivers! 15.6 in is a more
- The travel monitor for laptop provides 2 full-function Type-C ports and 1 HDMI port to
Check for Physical Damage and Loose Cables
Sometimes, a strong impact loosens the display cable inside the hinge or the connector on the motherboard. Before buying a new screen, check if the connection is secure.
Power off the laptop. Unplug the power adapter. If your laptop has a removable battery, take it out. Hold the power button for 15 seconds to drain residual charge. We cover recovering from boot hangs in a guide of its own.
Open the back panel using a precision screwdriver set. Look for the flat ribbon cable running from the motherboard to the screen. It usually has a small plastic latch. Gently release the latch, inspect the gold pins for dirt or bending, and click the connector back firmly.
If the lines were flickering randomly before the crack, this reseat might help. If the glass is physically broken, this step will not fix the visual crack.
The JOREST precision set includes Phillips and Torx bits plus plastic spudgers; you need these to open the laptop safely without stripping screws or cracking the frame.
- - 40Pcs screwdriver set has 30 CRV screwdriver bits which are phillips PH000(+1.2)
- - All our screwdriver bits are made of high quality CR-V chrome vanadium steel. CR-V
Replace the LCD Panel (DIY)
If the panel is cracked or showing permanent black lines, you need a new LCD panel. This is a replaceable part, not the whole laptop. The cost is much lower than buying a new machine.
Find the part number: Look up your laptop model number. Then check your broken screen for a label (often on the back of the panel or on the hinge) that lists the screen size, resolution (e.g., 1920×1080), and connector type (30-pin or 40-pin).
Match the specs: When buying a replacement, you must match the size, resolution, and connector. A 15.6-inch FHD IPS panel is a common choice. It offers better colors than old TN screens and lasts longer.
Once you have the part, remove the old bezel (front frame), unscrew the old panel from the hinge, and unplug the cable. Plug in the new cable, screw the new panel in, and reattach the bezel. It helps to understand cracked laptop screen repair diy before going further.
When to Get Professional Repair
DIY repair is risky if you have not done it before. A slipped screw can crack the new screen. A bent pin on the motherboard can kill the laptop.
- Warranty: If your laptop is still under warranty, physical damage is usually not covered, but taking it to an authorized center is safer.
- Complex models: Ultrabooks and 2-in-1s have very thin parts and fragile hinges. If your laptop is one of these, use a pro.
- Cost of error: If you break the motherboard or the new screen, you lose the cost of both.
A repair shop will charge for labor and the part. This is often cheaper than buying a new laptop, and they handle the risk.
How to Stop It Happening Again
Once your screen is fixed, you need to protect it from the next impact. Most cracks come from the lid closing on something or a hard object in the bag.
- Clear the lid: Always check under the screen before closing the laptop. A pen, coin, or crumb can crack the glass when the lid closes.
- Use a sleeve: Carry your laptop in a padded sleeve, not loose in a bag. Side impacts from laptops banging against each other are a common cause.
- Screen protector: A tempered glass or plastic screen protector can take the first hit and crack instead of your LCD panel.
Physical damage is the leading cause of screen failures. Prevention is the only real fix for a broken panel.
The bottom line
A cracked screen must be replaced; it cannot be repaired. Back up your data first, then replace the panel yourself if you have the right tools and part number, or take it to a pro if your laptop is under warranty or complex. The JOREST screwdriver set and a matching 15.6-inch panel are the best tools for a DIY fix.
- Brand New 15.6" LCD screen replacement with FHD (1920 x 1080) resolution
- 30-pin connector (bottom right), IPS panel, Non-Touch; please match your original
Frequently asked questions
Can I fix a cracked laptop screen at home?
Yes, but only by replacing the panel. You cannot glue the glass back. You need the right screwdriver set and a panel that matches your laptop’s model, size, and connector. If you are unsure, take it to a repair shop. We go through repairing severed ribbon cables step by step in its own article.
Why are there black lines on my screen?
Black or dark lines usually mean the liquid crystals inside the LCD are leaking due to a crack. If the lines are moving or flickering without a visible crack, it might be a loose cable or GPU issue, but after a fall, it is almost always a broken panel.
Is it worth repairing a broken laptop screen?
If your laptop is less than 3-4 years old and the battery and keyboard work, yes. A screen replacement is usually the cheapest major repair. If your laptop is very old, a new machine might be a better value.
What if the screen is dark but the laptop is on?
If you see a faint image when you shine a flashlight on the screen, the backlight or inverter is broken. This is easier to fix than the main panel. If you see nothing even with a light, the panel itself is dead.
How do I find the right replacement screen?
Look at the label on your broken screen or check your laptop’s manual. Note the size (e.g., 15.6 inch), resolution (FHD/1080p), and pin count (30-pin or 40-pin). Buy a panel that matches all three exactly.