Window blind assembly

A window blind assembly comprising:

• a frame;
• a curtain which has a top edge mounted at said frame and which includes a plurality of horizontally extending partitioning portions vertically spaced apart from each other;
• and
• a curtain control unit for bringing said curtain to fold upwardly and unfold downwardly, said curtain control unit including
• a horizontally extending winding rod mounted rotatably at said frame,
• a driving member operable to drive said winding rod to rotate about an axis of said winding rod,
• at least one blind piece wound around and extended from said winding rod,
• at least one weighting rod mounted to a bottom portion of said blind piece, and
• a plurality of connecting members each mounted on a respective one of said partitioning portions, each of said connecting members and a corresponding one of said partitioning portions defining a slot therebetween for, extension of said blind piece therethrough,
• each of said connecting members including a connecting strip, a support rod mounted at said connecting strip to stiffen said connecting strip, and a fastener for removably fastening said connecting strip to the corresponding one of said partitioning portions.