Lmst

#Driverboard

5K iMac Turned Into 5K Display https://hackaday.com/2026/02/04/5k-imac-turned-into-5k-display/
#MacHacks #5k #Apple #Display #Driverboard #Imac #Lcd #Mac #R1811 #Replacement #Retina #T18

5K iMac Turned Into 5K Display

https://fed.brid.gy/r/https://hackaday.com/2026/02/04/5k-imac-turned-into-5k-display/

<div><img alt="" class="attachment-large size-large wp-post-image" height="450" src="https://hackaday.com/wp-content/uploads/2026/01/5k-imac-main.png?w=800" style="margin: 0 auto; margin-bottom: 15px;" width="800" /></div><p>While Apple weren’t the first to invent high-DPI displays or to put them into consumer electronics, they did popularize them fairly effectively with the Retina displays in the early 2010s and made a huge number of them in the following years. The computers they’re attached to are getting up there in age, though, and although these displays are still functional it isn’t quite as straightforward to use them outside of their Apple-approved use. <a href="https://davidigreen.com/blog/transforming-a-2014-5k-imac-into-an-external-monitor" target="_blank">[David] demonstrates one way of getting this done by turning a 5k iMac into an external monitor.</a></p>
<p>The first attempt at getting a usable monitor from the old iMac was something called a Luna Display, but this didn’t have a satisfying latency. Instead, [David] turned to replacing the LCD driver board with a model called the R1811. This one had a number of problems including uneven backlighting, so he tried a second, less expensive board called the T18. This one only has 8-bit color instead of the 10-bit supported by the R1811 but [David] couldn’t personally tell the difference, and since it solved the other issues with the R1811 he went with this one. After mounting the new

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