They aren't hardware based. As I say in the first link, pixels mostly don't exist in hardware.
Screens very rarely contain a matrix of individual squares.
For example - https://global.samsungdisplay.com/29043/
Pixels very much exist in hardware outside mobile. Microsoft’s clear type even exploited the specific layout of color channels in discrete hardware pixels. Mobile displays are all over the place, but most other displays use standard RGB layouts.
Pixels very much exist in hardware outside mobile. Microsoft’s clear type even exploited the specific layout of color channels in discrete hardware pixels. Mobile displays are all over the place, but most other displays use standard RGB layouts.