TFT array substrate and display device with tilt angle between strip-like pixel electrodes and direction of initial alignment of liquid crystals

摘要

A thin film transistor (TFT) array substrate comprising a sub-pixel unit is disclosed. The sub-pixel unit includes a thin film transistor device, a first pixel electrode layer and a second pixel electrode layer; the first pixel electrode layer is configured as a common electrode, the second pixel electrode layer is connected to a source electrode or a drain electrode of the thin film transistor, and the first pixel electrode layer is insulated from the second pixel electrode layer; the second pixel electrode layer is located over the first pixel electrode layer, and strip-like pixel electrodes of the second pixel electrode layer overlap the first pixel electrode layer; and strip-like pixel electrodes of the second pixel electrode layer which are extended along a straight line make a tilt angle with an initial alignment of liquid crystals, and a data line is parallel to one of the strip-like pixel electrodes close to the data line. A phenomenon of orientation disorder of liquid crystals will not occur at an edge of pixel from influence of disordered electric fields.

主权项

1. A thin film transistor (TFT) array substrate, comprising:
a gate line and a data line, which are formed on a substrate, and a sub-pixel unit defined by intersecting of the gate line and the data line, wherein the sub-pixel unit comprises a thin film transistor device, a first pixel electrode layer and a second pixel electrode layer; wherein the first pixel electrode layer is configured as a common electrode, the second pixel electrode layer is connected to a source electrode or a drain electrode of the thin film transistor, and the first pixel electrode layer is insulated from the second pixel electrode layer; the second pixel electrode layer is located over the first pixel electrode layer, and strip-like pixel electrodes of the second pixel electrode layer overlap the first pixel electrode layer; and strip-like pixel electrodes of the second pixel electrode layer which are extended along a straight line make a tilt angle with an initial alignment of liquid crystals, and each strip-like pixel electrode has the same tilt angle with the initial alignment of liquid crystals, and the data line is parallel to one of the strip-like pixel electrodes close to the data line.