Displays with minimized curtain mura

摘要

Displays such as liquid crystal displays may be provided with structures that minimize curtain mura. A display may have upper and lower polarizers. A color filter layer and a thin film transistor layer may be located between the upper and lower polarizers. A liquid crystal layer may be interposed between the color filter layer and the thin film transistor layer. A first optical film layer that includes a birefringent compensating layer may be located between the upper polarizer and the color filter layer. A second optical film layer that is devoid of birefringent compensating layers may be located between the thin film transistor layer and the lower polarizer. A grid of metal signal lines may be used to distribute signals to thin film transistors on the thin film transistor layer. A black mask may be interposed between the grid of signal lines and the thin film transistor layer.

主权项

1. A display, comprising:
a thin film transistor layer having a transparent thin film transistor substrate, wherein the thin-film transistor layer includes an array of thin-film transistors having gate terminals; a grid of signal lines on the thin film transistor substrate, wherein the signal lines comprise gate lines coupled to the gate terminals of the thin-film transistors and data lines that distribute power supply voltages; and a patterned black mask between the grid of signal lines and the thin film transistor substrate, wherein the patterned black mask comprises black mask material directly beneath and directly touching at least some of the gate lines and at least some of the data lines.