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Comment by kingsleyopara | Hacker News Reader

Dual-layer LCD is best thought of as a separate technology from tandem OLED, due to being transmissive rather than emissive. In many respects, it surpasses OLED, which is why mastering monitors used in Hollywood still employ this technology. Unfortunately, the poor efficiency and excessive energy consumption/heat output have hindered its adoption in the consumer market.

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> In many respects, it surpasses OLED, which is why mastering monitors used in Hollywood still employ this technology.

Flanders Scientific were the main champions of dual LCDs in that market, and even they have phased out all of their dual LCD models in favor of QD-OLED ones now. I think they just brute force through OLEDs usual brightness limits by actively cooling the panel.

And speaking of high-brightness LED panels, I can swear I got a tan from one during a conference where the panel was sitting with the back towards the panel.

Those things are hot and very bright.

Dual LCDs also have poor brightness since a lot less light gets through the two layers. That can be overcome by a much stronger backlight, which produces tons of heat that require active cooling.

Sony also makes dual-layer LCDs, they even introduced a new model in 2023: https://pro.sony/en_GB/products/broadcastpromonitors/bvm-hx3...

Good to know, but that spec sheet neatly demonstrates the efficiency challenges of dual-layer LCD. That's a 31" panel which burns up to 610 watts!

That's probably illegal to sell in the EU?

It's a professional reference monitor not a TV so maybe there's an exception.

Those rules and regulations only apply to consumer products, business/professional products are exempt. This product is obviously not a consumer product.

Also, it costs $25,000. But that might not be related to it being a dual-layer LCD, but rather other exacting tolerances for professional mastering use.

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