7/7/2023 0 Comments Geek clock lcd![]() You can read more about the FPD-Link standard in Texas Instruments' app-note. Although FPD-Link itself is becoming outdated with the rise of next generation LCD monitors (2440p and 4K!), it is still used in most current generation laptops and desktop monitors. It superseeds TTL/CMOS parallel interfaces which were very limited in the resolution they could achieve. Interfacing - How to use your panel in an embedded projectįlat Panel Display Link (FPD-Link) was created by National Semiconductor as a free and open standard for connecting the output of a GPU or video processor to an LCD panel's timing controller.Reverse engineering - How to reverse engineer your own LCD panel.Extended Display Identification Data (EDID).The FPD-Link Interface - Everything you need to know about driving LVDS LCDs.The rest of this article details the FPD-Link/LVDS interface, and other related things like EDID and converter boards. The other thing you will need is a datasheet for your LCD panel, or good reverse-engineering skills! A board with native LVDS support (Some embedded ARM boards have native LVDS!).An LVDS->HDMI/DVI converter (either a monitor-style one from eBay/Aliexpress, or one that simply converts the signals).You can't juts connect FPD-Link to a computer however, so if you want to use an FPD-Link capable panel you'll need one of the following: However it doesn't describe an exact data format, so many different options exist for different panels, making it not quite as inter-operable as VGA or DVI.įortunately you'll find most (old) laptop LCD panels will use a de-facto format, so it's actually not too hard to re-use the screens out of that old stack of laptops you have in the basement! ![]() The actual interface is called FPD-Link (or also FlatLink by some manufacturers), and describes a general interface for connecting LCD panels to graphics controllers, much like VGA or DVI. Information surrounding the exact nature of this interface is scattered all over the internet, so I wrote this article to try and make it easier to understand, and potentially useable in your own projects!įPD-Link is also known as simply "LVDS", although this is technically incorrect since this refers to just the electrical interface, and LVDS is used for many other interfaces too. This is an intro to the FPD-Link display interface, commonly used in laptop and monitor LCD panels.
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