Yes, they are both recent innovations in the industry but they refer to separate features. According to John Taylor, media director for Zenith Electronics Corporation, there are several modestly priced products now available. Flattened picture tubes are referred to as FST for flat, square tube. They have also been called SuperFlat, True Flat, FSTPerfect, etc. All of these trade buzzwords refer to the same thing a picture tube that is visually flat, not curved.
Curved screens reflect the sources of light in the room and dilute the picture on the screen.
The flat screen minimizes glare and at the same time maximizes contrast for a more accurate picture. Squares are square and circular objects appear to be circular on the flat screen where they are distorted when shown on a curved screen. Additionally, the image detail is not only in the center of the screen, but all the way to the outer edges. A flat screen television can be viewed at a 180-degree angle without distortion. The flat screen television has either a dark tint or a dark glass picture tube that offers greater contrast between black and white.