It may be that at least part of the story was that some animals had issues purely with CRT technologies. A shift from shooting electrons through a window, to s

It may be that at least part of the story was that some animals had issues purely with CRT technologies. A shift from shooting electrons through a window, to source pixels of very specific frequencies, may have been better. For example, this spectral comparison implies there is a rather large difference in the color experience of watching CRT vs LCD. Very pronounced and spikey red component vs smooth gaussians. Canines are notorious for issues with red colors. https://www.researchgate.net/profile/Alireza-Shahsafi/publication/314943206/figure/fig13/AS:657821041451019@1533848166444/Figure-S7-a-Measured-emission-spectra-of-the-LCD-and-CRT-displays-used-in-this-work.png https://www.researchgate.net/profile/Alireza-Shahsafi/public...