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boy i've been having A Time trying to figure out what display to use for this. my ideal fantasy display would be 512x320 at 4.2 inches but no such display is made, so at first i settled for 480x320 at 4 inches, which seemed good enough for now.

originally i was trying to use a pi zero 2w (as evidenced by the previous post) but that only lets you use spi or hdmi for the display and i can't think of a way to do hdmi that isn't too bulky for this form factor, so i naïvely thought that maybe spi would be fine (it wasn't. doesn't refresh nearly fast enough and somehow any time it's running with the stock raspbian desktop it makes certain ui events take minutes to update. no this is not hyperbole). so spi is discarded, and with it the pi zero 2w. so much for doing this as a way to finally do something with it

so now i'm trying to find mipi dsi displays that fit the bill and having a surprisingly difficult time:
- i try to find another 480x320 4-inch display with a dsi interface, but it seems that although the driver supports it, every kit i've found uses only the spi interface and i haven't found it for sale standalone anywhere. i guess i could remove the panel from the board it's attached to and attempt to figure out what pins do dsi but that's not a satisfactory solution even if i succeeded
- looking at other options, 800x480 panels seem somewhat promising (despite the significantly less comfortable dpi), but the 4-inch ones are a bit smaller than i'd like (wider aspect ratio means less display area for a given diagonal). the 4.3-inch ones would be pretty close to ideal, except every single one, bafflingly, is made from rectangular pixels that stretch the aspect ratio to roughly 16:9 instead of 5:3 :neocat_floof_explode:
- the likely culprit of the previous phenomenon, the psp-style displays (480x272 4.3") are in fact also a promising candidate (if nothing else they're way more amenable to pixel art than the previous ones, which is one of my considerations) but i haven't looked into them enough to make sure they're commonly available with dsi interfaces and won't need some special conversion circuitry
- does dsi not support resistive touchscreens or sth? cos the ones i've seen overwhelmingly have capacitive digitisers and that's just not something i'm interested in for this project. if i actively enjoyed using capacitive touchscreens i'd just get a new smartphone instead of trying to figure this whole project out