Displays with multilayer masks and color filters

摘要

An electronic device may have a display such as a liquid crystal display. The display may have multiple layers of material such as a color filter layer and a thin-film transistor layer. An opaque masking layer may be formed on a display layer such as the color filter layer. In an inactive portion of the display, the opaque masking layer may form a rectangular ring that serves as a border region surrounding a rectangular active portion of the display. In the active portion of the display, the opaque masking layer may be patterned to from an opaque matrix that separates color filter elements in an array of color filter elements. The opaque masking layer and color filter elements may be formed from polymers such as photoresist. The opaque masking layer may include a black pigment such as carbon black. Color filter elements and opaque masking material may include multiple sublayers.

主权项

1. A display, comprising:
a thin-film transistor layer; a color filter substrate layer; a layer of liquid crystal material interposed between the thin-film transistor layer and the color filter substrate layer; a first pigmented layer on the color filter substrate layer; and a second pigmented layer on the color filter substrate layer, wherein the first pigmented layer is interposed between the second pigmented layer and the color filter substrate layer, the first and second pigmented layers have different respective pigment concentrations , and the first and second pigmented layers comprise black mask layers with different respective first and second concentrations of black pigment.