Display with broadband antireflection film

摘要

Display layers in an electronic device may be used to generate images. The display layers may include liquid crystal display layers such as upper and lower polarizers and a layer of liquid crystal material. A display cover layer may be mounted in a housing adhesive. A touch sensor layer may be mounted under the display cover layer. An air gap may separate the upper polarizer from the touch sensor layer and display cover layer. Antireflection coatings may be formed on the lower surface of the display cover layer or touch sensor layer and may be formed on the upper surface of the upper polarizer. The antireflection coatings may include coatings formed from a polymer hard coat covered with a polymer layer having a different index of refraction and may include broadband antireflection coating material formed from textured polymer or other structure exhibiting a continuously varying index of refraction.

主权项

1. Display structures, comprising:
a touch sensor layer with first and second opposing sides; a first patterned transparent electrode on the first side of the touch sensor layer; a second patterned transparent electrode on the second side of the touch sensor layer; a broadband antireflection layer, wherein the broadband antireflection layer comprises a textured surface that creates a continuously varying refractive index in a direction from the uppermost surface to the lowermost surface; and display layers that generate an image, wherein the display structures comprise an antireflection layer, wherein the antireflection layer comprises first and second layers, and wherein the second layer includes hollow structures that are completely surrounded by the second layer, wherein the first layer comprises a polymer layer having a thickness of 5 to 7 microns, wherein the antireflection layer is in direct contact with the first patterned electrode.