Photographing lens assembly and image capturing device

A photographing lens assembly comprising, in order from an object side to an image side:

• a first lens element having positive refractive power;
• a second lens element having refractive power;
• a third lens element having positive refractive power;
• a fourth lens element having refractive power;
• a fifth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof;
• and
• a sixth lens element with refractive power having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one convex shape in an off-axis region thereof, and an object-side surface and the image-side surface of the sixth lens element are aspheric;
• wherein the photographing lens assembly has a total of six lens elements with refractive power, a focal length of the photographing lens assembly is f, a curvature radius of an image-side surface of the second lens element is R4, a central thickness of the third lens element is CT3, a central thickness of the fourth lens element is CT4, and the following conditions are satisfied:
• −1.0<f/R4≦0;
• and
• 0.9<CT3/CT4<5.0.