Photographing lens assembly, image capturing device and mobile terminal

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

• a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof;
• a second lens element;
• a third lens element;
• a fourth lens element;
• a fifth lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof;
• and
• a sixth lens element having an object-side surface being convex in a paraxial region thereof and a 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 the 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 non-cemented lens elements, a focal length of the photographing lens assembly is f, a focal length of the first lens element is f1, a curvature radius of the object-side surface of the second lens element is R3, a curvature radius of an image-side surface of the second lens element is R4, and the following conditions are satisfied:
• 0<f1/f<2.5;
• (R3+R4)/(R3−R4)<−0.40;
• and
• −2.0<f/R4≦0.0.