My wife’s first reaction was that you rediscover your photos because they are displayed so much bigger and sharper. More important than mere numbers is the visual impression. Price-wise, the larger 4K screen is about 450€/$ more expensive than the smaller model, but it also has a much higher resolution. The CPU temperature of the Raspberry Pi 4 in a Flirc case running a 4K monitor is unchanged at 48 degrees Celsius (118 Fahrenheit). I guess that is also due to the higher degree of energy efficiency of the more modern display. This includes both Raspberry Pi and the monitor. For 3.6x as many pixels that need to be lit, I didn’t think it was much. The energy consumption increases from 23 W to 35 W, so about 50% more. However, the height only changes by 23%, whereas the width is extended by 37%. You’ll get 1,648 cm2 for the 24-inch and 2,789 cm2 for the 32-inch model in terms of the display surface, so 69% more. The old 24” display had 2.3M pixel at 1920 x 1200px, the larger 4K brother 8.3M pixels at 3840 x 2160px, so 3.6x as many. I am writing this article on day 20 of the new frame hanging on the wall, and so far, it hasn’t come crashing down. I was worried if the aluminum frame would still be strong enough to support it. The first thing that you’ll notice when you unpack the 32-inch monitor is that it’s a lot heavier than the smaller model. What is different between a 32-inch frame coming from a 24-inch model? However, it is painful to have a large screen and then have to hide 20% of the display surface.įor a long time, I had decided that my next frame would use a physical mat, but when Jeff came up with the matting feature, I changed my mind. This is a great idea, and the now-discontinued Canadian Memento digital frames took the same approach. If you don’t like this approach and still want to have a 3:2 display, you will need to hide parts of the screen with a physical mat described in the articles by Rob and Josh. So the idea was to reformat all photos to 16:9, where not too much content was lost, and leave the rest of the images in their original format, including portraits or panorama photos. This matting feature is so cleverly done that I started seriously thinking about going with a 16:9 display to finally have a 32-inch 4k monitor. You can even adjust the value when matting kicks in, so images with only a marginally different aspect ratio will not be matted. Jeff came up with a clever matting function, which creates a color-matching mat for images that have a different aspect ratio than the screen. In early 2021, my favorite image viewer Pi3D PictureFrame received a major re-write from its UK-US-German prominent authors. This is sad for us digital picture frame lovers, but a fact that we won’t be able to change. And it would seem that the market is too small, so manufacturers have decided only to offer 16:9 and wider models. Unfortunately, there is no 16:10 formatted, 4K monitor that I have heard of. In this process, up to 30% of an image has to be cut. If you want to fill the entire screen of your display and avoid any pillar boxing (the black gaps), you need to stretch the image until it fills the screen. Photos are typically made in 3:2 (DSLR) or 4:3 (mobile phones). Modern displays are made for movie consumption and come with a 16:9 aspect ratio. I wrote a long article here for you to read, but to give you the TLDR version: What’s the deal with the aspect ratio anyway? If you have been toying with the idea of building a larger digital picture frame, read on. I added the Raspberry Pi 4 in a passively cooled Flirc case, plugged in the wires, and configured the Pi3D PictureFrame software. Three weeks later, I picked up the display back with a beautiful frame.
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