An old laptop with a broken case or faulty motherboard is not a reason to send it to a landfill. His matrix (display) can become the basis for a homemade monitor, which will be useful for a desktop, media center or even a game console. In this article we will look at how to turn LCD panel from Lenovo, HP, Dell or another brand into a full-fledged monitor at minimal cost.
The process requires care and basic soldering skills, but the result is worth the effort: you will get a unique device with resolution Full HD (or higher), which will cost less than a new monitor. We will look at all stages - from disassembling the laptop to setting up drivers, and also tell you what controllers suitable for different matrices and how to avoid common mistakes.
What matrices are suitable for a homemade monitor
Not every laptop matrix can be converted into a monitor. Main selection criteria:
- 🔍 Resolution: optimal
1920×1080(Full HD) or2560×1440(QHD). Matrices with resolution1366×768inferior in quality, but also suitable for secondary tasks. - 🔌 Connection type: Most modern matrices use an interface eDP (Embedded DisplayPort), less often - LVDS. The latter are easier to connect, but are found in laptops older than 2015.
- 💡 Backlight: check if it works LED backlight. If the matrix does not light up when connected to a laptop, repairing it may cost more than buying a new one.
- 📏 Size: diagonals from
15.6"to17.3"most versatile. Matrices13-14"suitable for compact solutions, but will require fine tuning of drivers.
Before purchasing a controller, check the matrix model. It is indicated on a sticker on the back of the panel (for example, LP156WF6-SPK1 for Full HD-matrices from LG Philips). This information is critical to selecting a compatible adapter.
⚠️ Attention: Matrices with touchscreen (touch screen) require an additional controller to process touches. Remaking them is more difficult and expensive - up to 5000₽ only for adapters.
- 13-14 inches
- 15.6 inches
- 17.3 inches
- More than 17 inches
- I haven't decided yet
Necessary tools and components
To assemble the monitor you will need:
| Component | Purpose | Approximate cost (2026) |
|---|---|---|
| Controller (adapter board) | Converts the signal HDMI/DP in eDP/LVDS for matrix | from 1500₽ to 4000₽ |
| Power supply | Power supply for the matrix and controller (usually 12V/5A) |
from 500₽ |
| Housing or frame | Matrix protection (you can use a frame from an old monitor or 3D printing) | from 300₽ (used) up to 2000₽ (new) |
| Cables | HDMI-cable, cable for connecting the matrix to the controller | from 200₽ |
| Soldering iron and solder | To connect backlight power (if required) | from 1000₽ (set) |
Select the controller based on the matrix model. Popular options:
- 🔧 Boardcon - universal boards for eDP-matrices (for example, EB0690 for
1920×1080). - 🔧 HSD - support LVDS And eDP, there are models with OSD-menu (for example, HSD156WH1).
- 🔧 AliExpress kits — budget sets (from
2000₽), but require a compatibility check.
Before purchasing a controller, check its compatibility with your matrix on the manufacturer’s website or in thematic forums (for example, 4PDA or Reddit/r/DIY).
Disassembling the laptop and removing the matrix
Carefully disassemble the laptop so as not to damage the cables. Procedure:
- Disconnect the battery and power.
- Remove the plastic plugs over the cover screws (usually they are held in place by clips).
- Unscrew the screws around the perimeter of the matrix (there can be from 4 to 12 pieces).
- Disconnect the cables connecting the matrix to the motherboard. Be careful - they are fragile!
The matrix is attached to the laptop lid using metal latches or double-sided tape. Pry it with a plastic card, starting from the corner. If the matrix does not separate, heat the gluing area with a hairdryer (temperature no higher than 60°C).
⚠️ Attention: Matrix cables cannot be bent at an angle of more than 90° - this leads to broken tracks. Store them unassembled on a flat surface.
How to check the matrix before removal?
Connect your laptop to an external monitor. If there is an image on the external screen, but not on the built-in one, the problem is in the matrix or cable. If both screens do not work, the video card or motherboard is to blame.
Connecting the matrix to the controller
This is the most critical stage. Instructions for eDP-matrices (the most common option):
☑️ Preparing for connection
1. Connect the matrix cable to the connector eDP on the controller. Be guided by the keys (notches) - incorrect connection will lead to damage.
2. Connect the power supply to the controller. Majority fees required 12V, but some (for example, for 4K-matrices) — 19V. Check the documentation for details.
3. Connect HDMI-cable from the controller to the signal source (PC, set-top box).
4. Turn on the power. If the matrix does not light up, check:
- 🔌 Correct connection of the cable (turn it over if there are symmetrical connectors).
- 🔋 Power supply voltage (use a multimeter).
- 🖥️ Signal source settings (sometimes you need to manually select the resolution
1920×1080in display settings).
Critical detail: some controllers require firmware to work correctly with a specific matrix. Without it, the image may flicker or lack color reproduction. Firmware is usually available on the board manufacturer's website.
Setting up drivers and resolutions
After successful connection, manual configuration may be required:
1. B Windows go to Settings → System → Display. If the monitor is not detected, click Discover.
2. Select the recommended resolution (usually it matches the native resolution of the matrix). If it is not on the list:
- Download the utility Custom Resolution Utility (CRU).
- Add a new permission manually (for example,
1920×1080@60Hz). - Restart your PC.
For Linux (For example, Ubuntu) use the command:
xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsyncxrandr --addmode HDMI-1 "1920x1080_60.00"
xrandr --output HDMI-1 --mode "1920x1080_60.00"
⚠️ Attention: If after adjustment the image is “blurry”, check whether the physical resolution of the matrix matches the one selected in the OS. For example, for the matrix LP156WF6 native resolution -1920×1080, not1600×900.
If the monitor does not turn on, first check the backlight power supply - this is the most common cause of a “black screen” when the image is working (visible under a flashlight).
Case assembly and finishing touches
The matrix without protection is vulnerable to dust and mechanical damage. Housing options:
- 📦 Finished frame: suitable from an old monitor (for example, from Dell E2211H). Cut the plastic to the size of the matrix.
- 🖨️ 3D printing: on Thingiverse there are frame models for popular matrices (for example, for
15.6"). - 🛠️ Homemade body: made of plywood or aluminum profile. Use silicone gaskets to prevent the matrix from rattling.
To mount the matrix inside the case:
- Apply double-sided tape around the perimeter (for example, 3M VHB).
- Secure the controller to the rear panel of the case with screws or ties.
- Remove the connectors (HDMI, food) out through the holes.
For aesthetics you can add:
- 🎨 Vinyl frame stickers.
- 🔦 Case lighting LED strip (connect it to a separate power supply
5V). - 🔊 Built-in speakers (if the controller supports audio output).
Typical problems and their solutions
Even with careful assembly, problems may occur. Let's look at the most common ones:
| Problem | Possible reason | Solution |
|---|---|---|
| No picture, backlight works | Incorrect cable connection or incompatible controller | Check the cable for breaks, update the controller firmware |
| There is an image, but there is no backlight | No power LED drivers or open circuit | Use a multimeter to test the circuit from the power supply to the matrix |
| Artifacts (stripes, flickering) | Unstable power supply or cable damage | Try another power supply, replace the cable |
| Incorrect colors | Incorrect controller or driver settings | Update the video card driver, reset the color settings in the OS |
If the monitor works, but after 10-15 minutes goes out, the problem is the controller is overheating. Install it on a radiator or add active cooling (small fan 40×40 mm).
FAQ: Frequently asked questions
Is it possible to use a matrix from a laptop with 4K resolution?
Yes, but you will need a special controller (for example, Boardcon EB0700 for 3840×2160). Also make sure your video card supports 4K@60Hz by HDMI 2.0 or DisplayPort.
How much does it cost to assemble a monitor from a laptop matrix?
Minimum cost (used matrix + controller + housing) - from 3000₽. If you buy everything new (matrix 15.6" Full HD, controller HSD, frame), the budget will be 6000–8000₽.
Is it possible to connect a touchscreen from a laptop?
Technically yes, but you will need a separate controller for the sensor (for example, eGalax USB controller). The cost of such a solution is from 2000₽, plus setting up drivers in the OS.
How to check the matrix before purchasing?
Connect it to your work laptop via a native cable. If there is an image, the matrix is working. Also inspect for dead pixels (use test pictures on a uniform background).
Which matrix is better to choose for a gaming monitor?
The best option is IPS-matrix with frequency 120 Hz (For example, B156HAN04.8 from AU Optronics). But keep in mind that a controller for such a matrix will cost 5000₽+.