Patent ID: 11956991
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC H

Claim 0:
1. A display panel comprising:
a substrate, and a grating disposed on a light-emitting side of the display panel,
wherein 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; and
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;
the curve is a cross-sectional figure of the outer surface along the thickness direction of the display panel, and the bottom edge is a cross-sectional figure of the bottom surface along the thickness direction of the display panel,
wherein each protruding portion includes a first protruding portion and a second protruding portion, and an orthographic projection of the first protruding portion on the substrate is located within an orthographic projection of the second protruding portion on the substrate; and
the grating includes a first pattern layer and a second pattern layer; the first pattern layer includes a plurality of first protruding portions; and the second pattern layer includes a plurality of second protruding portions,
wherein the first protruding portion includes a first bottom surface and two side surfaces;
a cross-sectional figure of the first protruding portion along the thickness direction of the display panel is a second figure; the second figure includes a first bottom edge and two side edges, and the first bottom edge and the two sides edges form a triangle; and
the first bottom edge is a cross-sectional figure of the first bottom surface along the thickness direction of the display panel, and the two side edges are cross-sectional figures of the two side surfaces along the thickness direction of the display panel,
wherein the second protruding portion includes the outer surface of a corresponding protruding portion, an inner surface proximate to the first protruding portion, and a second bottom surface; and the inner surface is in contact with and covers the two side surfaces of the first protruding portion;
a cross-sectional figure of the second protruding portion along the thickness direction of the display panel is a third figure, and the third figure includes the curve, an inner edge, and a second bottom edge; and
the second bottom edge is a cross-sectional figure of the second bottom surface along the thickness direction of the display panel, and the inner edge is a cross-sectional figure of the inner surface along the thickness direction of the display panel,
wherein the bottom surface of the protruding portion includes the first bottom surface and the second bottom surface, and the first bottom surface and the second bottom surface are located in a same plane.