▎ 摘　　要

NOVELTY - The supporting piece has a non-marking area (10) and a marking area (20). The non marking area is coated with ink graphene. The marking area is a linear area with a first preset width. The first preset width is between 0.25 mm and 0.35 mm. A clearance area is set in the second end portion for releasing the stress generated after drying the graphene ink, and the second end portion is far away from the first end. A locating portion is provided between the first end portion and the second end portion. The mark area is set in the locating portion. USE - Supporting piece for backlight source of display module e.g. liquid crystal display (LCD) module. ADVANTAGE - The non-mark area surface of the supporting piece is coated with graphene ink, and the area of the non-coated ink graphene forms a mark area, so as to realize the positioning based on the mark area position when performing the module alignment without laser operation, and thus avoiding the bad phenomenon caused by the complicated operation of the mark line laser operation. The radiating efficiency of the display module backlight source is effectively improved. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a display module; (2) a manufacturing method of supporting piece of backlight source of display module. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a first surface of a supporting piece. Non-marking area (10) Marking area (20)