Abstract: A metal back plate, a display apparatus, and a pre-coating method for a metal back plate are provided. The metal back plate is a pre-coated steel back plate (1), and comprises a conductive region (2) and a non-conductive region (3). A front surface pre-coated coating is provided on the non-conductive region (3). By reserving the conductive region (2) in the front surface pre-coated coating of the pre-coated steel back plate (1), the mounting region of a core circuit board on the pre-coated steel back plate (1) is conductive, thereby reducing the stamping and riveting processes and a threaded stud material, and reducing the production costs.

Abstract: A direct backlight module includes a light optical plate, a plurality of point light sources, and a reflective member. The optical plate includes a light input surface and a light output surface opposite to the light output surface. The point light sources are positioned between the optical plate and the reflective member. The reflective element forms a plurality of curved reflective surfaces corresponding to the point light sources. Each curved reflective surface is a substantially spherical depression, and each point light source corresponds to a center of each spherical depression defined by one of the curved reflective surfaces.

Abstract: A direct backlight module includes a light optical plate, a plurality of point light sources, and a reflective member. The optical plate includes a light input surface and a light output surface opposite to the light output surface. The point light sources are positioned between the optical plate and the reflective member. The reflective element forms a plurality of curved reflective surfaces corresponding to the point light sources. Each curved reflective surface is a substantially spherical depression, and each point light source corresponds to a center of each spherical depression defined by one of the curved reflective surfaces.