Blue phase liquid crystal display device and manufacturing method thereof

摘要

An embodiment of the disclosed technology provides a blue phase liquid crystal display device, comprising: a lower polarizer; a thin film transistor substrate, formed above the lower polarizer; a color filter substrate, disposed above and opposite to the thin film transistor substrate; an upper polarizer, formed above the color filter substrate; a plurality of pixel electrodes, disposed on a surface of the thin film transistor substrate facing the color filter substrate and protruded toward the color filter substrate, wherein negative pixel electrodes and positive pixel electrodes are alternately disposed; a plurality of common electrodes, disposed on the color filter substrate; and a blue phase liquid crystal layer, provided between the thin film transistor substrate and the color filter substrate.

主权项

1. A blue phase liquid crystal display device, comprising:
a lower polarizer; a thin film transistor substrate, formed above the lower polarizer; a color filter substrate, disposed above and opposite to the thin film transistor substrate; an upper polarizer, formed above the color filter substrate; a plurality of pixel electrodes, disposed on a surface of the thin film transistor substrate facing the color filter substrate and protruded toward the color filter substrate, wherein the plurality of pixel electrodes comprise negative pixel electrodes and positive pixel electrodes being alternately disposed; a plurality of common electrodes, disposed on the color filter substrate, wherein orthographic projections of the common electrodes and the pixel electrodes on a same plane are alternately disposed at an interval; and a blue phase liquid crystal layer, provided between the thin film transistor substrate and the color filter substrate, wherein the positive pixel electrodes are applied with a voltage larger than that of the common electrodes, and the negative pixel electrodes are applied with a voltage smaller than that of the common electrode, and a first electric field is formed from the negative pixel electrode and the positive pixel electrode, a second electric field is formed from the negative pixel electrode and the common electrodes and a third electric field is formed from the positive pixel electrode and the common electrodes, wherein the positive pixel electrodes are applied a same voltage with the same magnitude by a first voltage source, and the negative pixel electrodes are applied a same voltage with the same magnitude by a second voltage source, the first voltage source is different from the second voltage source, the positive pixel electrodes are connected with the first voltage source and the negative pixel electrodes are connected with the second voltage source, wherein a vertical cross-section of each of the plurality of common electrodes is formed in an isosceles triangle shape, and a vertical cross-section of each of the plurality of pixel electrodes is formed in an isosceles triangle shape, wherein an electric field formed by the common electrodes and the negative and positive pixel electrodes is in a W node distribution.