![]() Nothing in the supply chain gets changed, nothing in the factory gets changed. “They remove a diffuser sheet in front of the light-guide plate and replace it with quantum-dot film. “The attraction to the OEM is that this is a pure drop-in solution,” says Nanoco CEO Michael Edelman, whose company makes quantum-dot film in a licensing deal with Dow Chemical. They’re closer to OLED in color performance, and they also can get brighter. That's a big reason LG is the only company putting big money into building them.Ĭonversely, quantum-dot sets don’t require overhauling the LCD fabrication process, and they produce a much wider color gamut than traditional LCDs. But they're expensive to build and expensive to buy-you're looking at $3,500 to as much as $20,000-and the manufacturing process differs in several key ways. In most peoples' eyes, OLED TVs are the best tech available. The purer the color you start with, the more relaxed the filter function can be. “When you purify the color using a color filter, then you will get practically no transmission through the filter. ![]() Nanosys makes film-based quantum-dot systems for several products. “A filter is a very lossy thing,” says Nanosys President and CEO Jason Hartlove. It’s kind of dirty, with a lot of light falling in a color range unusable by the set’s color filters. In a normal LCD, white light produced by the LEDs has a wider spectrum. Translation: Pure red and pure green light, which travels with the blue light through the polarizers, liquid crystals, and color filters.īecause that colored light is the good stuff, quantum dots have an advantage over traditional LCD TVs when it comes to vivid hues and color gamut. If you observed quantum-dot light with a spectrometer, you would see a very sharp and narrow emission peak. It's lit with an ultraviolet flashlight, which is what makes the dots glow red. This is a batch of red quantum dots being prepared in a 70-liter vat.
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