What is the difference between taper ratio and aspect ratio?

(For televisions)

Aspect ratio is the ratio of the width of the television screen to the height.

TVs do not have taper ratiOS.

(For airplanes)

Aspect ratio is a ratio of the wing span squared to the wing's reference area. This gives you a sense of how thin/slender a wing will appear from the top view of the aircraft. High aspect ratio means a long/extended wing.

b² / S

("b" is wing span, "S" is wing area)

Taper ratio is the ratio of the wingtip's length to the wing root's length. This gives you a sense of the angle the shape of the wing. High taper ratio means a triangular shaped wing.

t/r

("t" is length of the wingtip, "r" is length of wing's root)