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> As soon as there were raster CRTs, there wasn't much of a technical reason for light on black. This isn't entirely true; many CRT-based terminals have phosph
by cbm-vic-20 7y ago
> As soon as there were raster CRTs, there wasn't much of a technical reason for light on black.
This isn't entirely true; many CRT-based terminals have phosphors that dim slowly. If they used a black-on-light color scheme, the letters would be washed out a for a lot more time than light-on-black. Light-on-black hides other defects more (like a not-quite-centered horizontal and vertical hold) and may possibly use less power (since the electron gun is off for more time).
- masswerk 7y agoHowever, this is true for both modes. It's quite possible to imagine a world in which we had become accustomed to ignoring washed out dark on light, just like we became to ignore ghost images and trails. (Also, early LCDs were terrible at this, but somehow acceptable.)