The embodiment of the invention provides a low-temperature
polycrystalline silicon display panel, a manufacturing method of the low-temperature
polycrystalline silicon display panel and a
liquid crystal display device, relates to the technical field of display, and effectively improves a
metal light leakage phenomenon on the premise of ensuring relatively high display performance. The low-temperature
polycrystalline silicon display panel comprises an array substrate and a box aligning substrate which are oppositely arranged, and liquid crystals filled between the array substrate and the box aligning substrate. The array substrate comprises a substrate body, and a low-temperature polycrystalline
silicon active layer, a grid
electrode layer and a source and drain
electrode layer are sequentially arranged on the substrate body in the light emitting direction. The low-temperature polycrystalline
silicon display panel further comprises a
color film layer, the
color film layer being arrangedon the array substrate, and the
color film layer being located on the side, back on to the substrate, of the source-drain
electrode layer; a shading layer, used for limiting an opening area of the low-temperature polycrystalline
silicon display panel, at least part of the shading layer being arranged on the array substrate, and the shading layer on the array substrate being located on the side, back on to the substrate, of the source-drain electrode layer.