Those problems were solved years ago, and since then manufacturers such as Sony and Vizio have joined LG in the US market, although LG Display has been the only company that manufactures the real OLED TV panels. Sony manufactures its own OLED panel for its high-end medical and professional monitor in Nagoya. As for consumer products, they mainly get them from LG or Samsung. All of Sony's latest OLEDs will support 4K gaming at 120 Hz, automatic HDR tone mapping when connected to a PS5, and automatic low latency mode.
LG is currently the only manufacturer of TV-sized OLED panels in the world, so it's very likely that Sony uses the same OLED panel. In the case of Sony, the company states that the QD-OLED “increases color brightness by up to 200 percent compared to conventional televisions. The QD-OLED does not eliminate the possibility of burning out, but it is expected that these panels may have a longer total lifespan than existing OLED televisions, since pixels don't work as hard. But the new flagship Bravia XR A95K TV will include a QD-OLED (organic quantum dot light-emitting diode) panel manufactured by none other than Samsung Display.
It's not normally something people get excited about, but this is the part that really differentiates the two OLED televisions and sets them apart. WRGB technology (developed by Kodak and now Kodak's patents belong to LG Display) is much easier to produce and expand, although it has some technical disadvantages, and is the technology that allowed LG to be the first company to produce commercial OLED TV panels. Combined with the new OLED panels (used by both LG and Sony), LG's OLED HD TVs now have higher brightness and crisp, sharp images with greater clarity, detail and realism. While the basic design of the OLED television uses OLED RGB sub-pixels to create each “pixel” (known as a direct-emitting OLED, the design used in mobile OLED screens used in Samsung and Apple smartphones, for example), LG Display opted for a different OLED TV design.
Sony really gets fantastic audio performance with its premium TVs, and its internal processing also slightly outperforms LG's OLED line in image quality, so the names are probably here to stay. Samsung Display has been developing QD-OLED for several years, and display technology could become a kind of intermediate step between standard OLED screens and microLEDs that only Samsung sells right now for huge sums of money. In addition, even if Sony had a smaller OLED plant, I doubt that its production would be as economical as, for example, LG or Samsung. I've already mentioned a couple of times that Sony gets its OLED panels from LG, so it won't make any difference.
It will be very interesting to see the face-to-face comparisons between QD-OLED and the best “normal” OLED televisions from LG and Sony once they all start shipping to consumers this spring. Now that you know that Sony uses the same OLED panels as LG, there won't be any difference between Sony and LG because of the actual screen.
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