Display with Low Reflectivity Alignment Structures

摘要

A display may have a liquid crystal layer sandwiched between a thin-film transistor layer and a color filter layer. An upper polarizer may be placed on top of the thin-film transistor layer. A lower polarizer may be placed under the color filter layer. Components may be bonded to bond pads on the inner surface of the thin-film transistor layer using anisotropic conductive film. Bond quality may be assessed by probing probe pads that are coupled to the bond pads or by visually inspecting the bond pads through the thin-film transistor layer. Opaque masking material in the inactive area may be provided with openings to accommodate the bond pads. Additional opaque masking material may be placed on the underside of the upper polarizer and on the upper surface of the thin-film transistor layer to block the openings from view following visual inspection.

主权项

1. A display, comprising:
an upper polarizer; a lower polarizer; first and second substrate layers between the upper and lower polarizers; a layer of liquid crystal material between the first and second substrate layers, wherein the first substrate layer is interposed between the layer of liquid crystal material and the upper polarizer; a bond pad on the first substrate layer; a component having a bond pad that is bonded to the bond pad on the first substrate layer using an anisotropic conductive film bond; and probe pad structures on the substrate layer through which electrical measurements are made of the anisotropic conductive film bond to evaluate the anisotropic conductive film bond.