Samsung's QD-OLED panels are some of the best around on the market, competing with LG's WOLED across TVs and monitors. Where LG uses a more conventional white base layer with color filters on top, Samsung employs quantum dots with a blue base layer to enable an additive process that enhances color volume. Since its inception, the company has used a 4-stack layer to achieve this, but it moved to a 5-layer structure last year, now officially dubbed "Penta Tandem."
The display-savvy among you might recognize the term tandem — it's been associated with LG for a while — as it refers to the general method of stacking multiple OLED layers atop each other. LG has both Tandem WOLED and Tandem OLED now; the former is what powers the company's latest true RGB stripe subpixel layout. Either way, tandem techniques improve the display's overall performance, usually in both brightness and longevity.
