Abstract: A display panel includes a substrate and a grating disposed on a light-emitting side of the display panel. The grating includes a plurality of protruding portions and a plurality of interval portions, each interval portion is located between two adjacent protruding portions. The plurality of protruding portions are arranged on the substrate along a first direction, and each protruding portion extends along a second direction perpendicular to the first direction. Each protruding portion includes an outer surface and a bottom surface; the outer surface is a smooth curved surface, and the bottom surface is a flat surface. A cross-sectional figure of each protruding portion along a thickness direction of the display panel is a first figure; the first figure includes a curve and a bottom edge, and the first figure is a closed figure formed by the curve and the bottom edge.

Abstract: The present disclosure discloses a medical material and a product and preparation method thereof. The medical material comprises a ferroelectric polymer, and optionally further comprises an inorganic ferroelectric particle. The composite membrane is prepared by experiencing at least one of annealing treatment, corona poling treatment, acid treatment, and ultrasonic treatment, and the acid treatment is conducted after the annealing treatment. The present disclosure further relates to a method for treating a composite membrane to regulate an antibacterial activity.

Abstract: An apparatus of aligning and assembling, comprising a rotatable platform, an adjustment platform and a turnover unit; wherein the rotatable platform is connected to the turnover unit, which is disposed at one side of the adjustment platform and configured to drive the rotatable platform to turn over to be positioned above the adjustment platform and be opposite to the adjustment platform; and the rotatable platform and the adjustment platform are provided with a first holding unit and a second holding unit, respectively, which are configured to hold objects to be aligned and assembled with each other, respectively.

Abstract: An apparatus of aligning and assembling, comprising a rotatable platform, an adjustment platform and a turnover unit; wherein the rotatable platform is connecting to the turnover unit, which is disposed at one side of the adjustment platform and configured to drive the rotatable platform to turn over to be positioned above the adjustment platform and be in opposite to the adjustment platform; and the rotatable platform and the adjustment platform are provided with a first adsorption unit and a second adsorption unit, respectively, which are configured to adsorb objects to be aligned and assembled with each other, respectively.

Abstract: Embodiments of the disclosure disclose an integration sheet, a method for manufacturing the same and a method for manufacturing a touch screen using the same. The integration sheet comprises a polarizing sheet and an optically clear adhesive attaching with each other, a release film provided on a side of the optically clear adhesive away from the polarizing sheet and another release film provided on a side of the polarizing sheet away from the optically clear adhesive.