LIQUID CRYSTAL DISPLAY AND MANUFACTURING METHOD THEREOF

摘要

A liquid crystal display device includes: a substrate; a thin film transistor (TFT) having a semiconductive layer formed on the substrate and source and drain electrodes formed on the semiconductive layer; an interlayer insulating layer formed on the thin film transistor and formed with a contact hole partially exposing the drain electrode; a first light blocking structure-forming layer covering the contact hole and connected to the drain electrode; a second light blocking structure-forming layer formed on the first light blocking structure-forming layer; a pixel electrode formed on the interlayer insulating layer; and a common electrode disposed to face the pixel electrode, wherein at least one microcavity having a respective liquid crystal injection hole is formed between the pixel electrode and the common electrode, and the microcavity is filled to contain therein a liquid crystal layer portion formed of liquid crystal molecules. The first and second light blocking structure-forming layers allow for repair of the TFT while providing to the TFT protection from leakage light. A material of the second light blocking structure-forming layer is selected to include one that is not damaged by a process step of selectively removing a sacrificial layer.

主权项

1. A liquid crystal display comprising:
a substrate; a thin film transistor including a semiconductive layer formed on the substrate and source and drain electrodes which are formed on the semiconductive layer; an interlayer insulating layer formed on the thin film transistor and formed with a contact hole exposing the drain electrode; a first light blocking structure-forming layer covering the contact hole, the first light blocking structure-forming layer being electrically conductive and being electrically coupled to the drain electrode; a second light blocking structure-forming layer formed on the first light blocking structure-forming layer; a pixel electrode formed on the interlayer insulating layer; and a common electrode disposed on the substrate and spaced apart from and facing the pixel electrode, wherein the substrate has defined therein, a microcavity having a liquid crystal injection hole, the microcavity being formed between the pixel electrode and the common electrode, and the microcavity containing a liquid crystal portion formed of liquid crystal molecules.