Which LCD Or Oled Display Has Deeper Blacks? This article explored which display technology—LCD or OLED—offers deeper blacks. OLED displays achieve perfect black levels by turning off individual pixels, resulting in infinite contrast and superior image depth. LCDs, relying on backlights, cannot fully block light, causing blacks to appear grayish. While LCDs can be brighter overall, OLEDs provide a better viewing experience with true blacks, making them ideal for movies, gaming, and color-critical work.