PhotoShop video slide show

Adding to what Tina nd Dave have told you, use the larger size (3840px x 2160px) because it will automatically scale on lower res screens, but will take advantage of higher resolution (4K) screens should you ever view the images on a 4K screen. The only downside is that file will be up to four times larger.

Just to add to the correct answer from Tina above, ppi is irrelevant for screen use. A 1920 x 1080 image at 1ppi and a 1920 x 1080 image at 300 ppi will look exactly the same on screen. All that would change would be the ppi value in the metadata stored alongside the image which is ignored when displaying on screen, it is there to tell a printer driver how big to print the image on paper.

Note also, it is 'ppi' not 'dpi'.  'ppi' is literally pixels per inch and describes how many pixels a printer should print in 1 inch on paper. 'dpi' is dots per inch and describes the fine dots that make up each pixel, you can see them if you look at a print under a microscope. They are often mistakenly interchanged but actually mean two separate things.

Dave

Hi @Walter29309082ua0d,

For video, it's best to use pixels rather than inches on your Photoshop file. If you bring your photos into Photoshop at 1920px width (72dpi), and then crop the height to 1080px, it should display correctly on the tv.

However, if your tv is 4K, you'll want to double the 1920px x 1080px to 3840px x 2160px (although, this will make your files larger than they are now)

I would recommend testing out an image or two by displaying them on the tv and making sure they display well.