Nanocrystal display including black matrix between common electrode and data line in boundary between pixel areas

摘要

A nanocrystal display device includes a plurality of pixels; a gate line extended in a row direction; a data line extended in a column direction; and a second insulating layer on the data line. Each pixel includes first and second pixel areas adjacent to each other in the column direction; first and second pixel electrodes on the second insulating layer of the first and second pixel areas; a first black matrix on the second insulating layer, and having a step difference greater than that of the first and second pixel electrodes; a common electrode extended in the row direction, contacting the first black matrix and spaced apart from the second insulating layer in the first and second pixel areas, and a tunnel-shaped cavity between the common electrode, the first black matrix and the second insulating layer; and a liquid crystal layer in the tunnel-shaped cavity.

主权项

1. A nanocrystal display device comprising:
a substrate comprising a plurality of pixels which displays an image; a gate line on the substrate and extended in a pixel row direction; a first insulating layer on the gate line; a data line on the first insulating layer, extended in a pixel column direction and crossing the gate line; a second insulating layer on the data line; a first boundary area extended in the pixel row direction, between adjacent first and second pixel areas; and a second boundary area extended in the pixel column direction, between adjacent first pixel areas and between adjacent second pixel areas, wherein each pixel comprises:
a first pixel area and a second pixel area adjacent to each other in the pixel column direction;a first sub-pixel comprising a first pixel electrode on the second insulating layer of the first pixel area;a second sub-pixel comprising a second pixel electrode on the second insulating layer of the second pixel area;a common electrode extended in the pixel row direction and spaced apart from the second insulating layer in the first and second pixel areas,a first black matrix on the second insulating layer to be disposed between the data line and the common electrode and contacting the common electrode, and forming a step difference greater than a step difference of the first and second pixel electrodes;a tunnel-shaped cavity between the common electrode, the first black matrix and the second insulating layer; anda liquid crystal layer in the tunnel-shaped cavity,wherein the first black matrix is on the second insulating layer in the second boundary area to be disposed between the data line and the common electrode, except for an area in which the first boundary area crosses the second boundary area.