Optical filter box, optical filter box manufacturing method and touch display screen

An optical filter box comprises a substrate, a shading layer, a filtering layer, a conducting layer, a conducting bridge and an insulating layer. The shading layer and the filtering layer are attached to the same surface of the substrate. The conducting layer is arranged in one side, far from the substrate, of the shading layer in an embedded mode, the conducting layer comprises first conducting patterns and at least two second conducting pattern units, each first conducting pattern and each second conducting pattern unit respectively comprise a conducting grid formed by conducting wires in an mutually-intersecting mode, and the first conducting patterns and the second conducting pattern units are arranged at intervals to form a sensing structure. The conducting bridge is electrically connected with two second conducting pattern units which are placed on two opposite sides of the same first conducting pattern, and the insulating layer is placed between the conducting bridge and the first conducting patterns to insulate the conducting bridge from the first conducting patterns. The optical filter box can achieve touch operation and filtering at the same time. The invention further provides a touch display screen, the thickness of the touch display screen can be reduced beneficially, and materials and cost can be saved. The invention also provides an optical filter box manufacturing method.