The Economist on TV tech2 Feb 2021 12:04
This week's Economist reports on "TV's tech wars" (Page 68). Nothing new, but a good general summary:
"Samsung, a South Korean firm that is the world's biggest television-maker, and TCL electronics, a giant Chinese group, focus on LED models. By contrast LG, another South Korean electronics outfit, devotes its upmarket efforts to OLED.
These three firms now dominate the provision of television sets, jointly accounting for more than 40% of global sales"
Starting off comparing the strengths and weaknesses of LED and OLED in the current marketplace, it then moves on to micro-LED, described as a temporary technology leading on to QDs. Then it describes mini-LED as a different tech focusing on improving contrast. Finally, it discusses how Samsung pushes the durability of it's materials, whereas OLED materials have actually improved significantly, and OLED retains the advantage of flexibility, due to having no backlight, with see-thru models even being produced as prototypes.
Nano are not mentioned, and QDs are described as a minor or futuristic component: "used in some LED televisions as a layer above the backlight, an arrangement known as QLED... Quantum dots could, though, at least in theory, be used in the way micro LEDs are, as elements of individual pixels that emit their own light directly from the screen. It is early days, but Samsung for one, has been looking at some sort of hybrid screen which would combine quantum dots with OLEDs" .