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LCD vs. LED: Which TV Technology Is Better?

Broadly speaking, LED LCDs are better than regular LCDs, but most LCD TVs are now actually LED TVs. Within the "LED TV" ...
Gizmodo

For OLED-Like Contrast, Simply Stack an LCD on Top of Another LCD

When placed side-by-side, it becomes immediately obvious why an OLED computer screen can cost hundreds to thousands of dollars more than a traditional LCD display: the OLED’s contrast and black levels ...