Sony and LG, among the last bastions of 3D TV, have declared 3D dead as image quality via 4K, Dolby Vision and HDR takes over from what has for too long been a gimmick anyway. Samsung stopped its 3D in 2016.
According to CNET, "The shambling corpse of 3D TV finally falls down dead" quotes LG’s Tim Alessi, LG's director of new product development, why his company's TVs no longer have the feature.
"3D capability was never really universally embraced in the industry for home use, and it's just not a key buying factor when selecting a new TV. Purchase process research showed it's not a top buying consideration, and anecdotal information indicated that actual usage was not high. We decided to drop 3D support for 2017 to focus our efforts on new capabilities such as HDR, which has much more universal appeal."
Sony's reply was, "Based on current market trends we decided not to support 3D for our 2017 models”.
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I blame James Cameron a.k.a. director of tacky movies like Piranha II and Rambo (and in later years trying to redeem himself with 3D movies like Titanic, Ghost of the Abyss, and Avatar) where technology and effects overshadowed the movie and plot. Faced with watching Avatar in 3D on the tele I would gladly visit the dentist.
Of course, that 3D hype extended to games that made one’s vertigo rise up and to big screen movies where I would patiently wait for the 2D version to screen.
According to Wikipedia some viewers have complained of headaches and eyestrain after watching 3D films. Motion sickness, in addition to other health concerns, are more easily induced by 3D. One published study shows that of those who watch 3D films, nearly 55% experience varying levels of headaches, nausea, and disorientation.
There are two primary effects of 3D film that are unnatural for human vision: crosstalk between the eyes, caused by imperfect image separation, and the mismatch between convergence and accommodation, caused by the difference between an object's perceived position in front of or behind the screen and the real origin of that light on the screen.
It is believed that approximately 12% of people are unable to properly see 3D images, due to a variety of medical conditions. According to another experiment, up to 30% of people have very weak stereoscopic vision preventing them from depth perception based on stereo disparity. This nullifies or greatly decreases immersion effects of digital stereo to them.
RIP 3D. If you really want it please go to Change.org to sign the petition to bring it back.