Narrow bezel flat panel display
Provided is a flat panel display. A flat panel display includes: a lower panel defining a display area and a non-display area, a driver element and a line within the non-display area, a planar layer covering the lower panel, a first trench at the planar layer over the driver element and the line, a lower alignment layer on an upper surface of the planar layer and a lower surface of the first trench, the lower alignment layer exposing some upper surface of the planar layer at the first trench, and a sealant at the first trench.
1. A flat panel display, comprising:
an upper panel and a lower panel defining a display area and a non-display area;
a liquid crystal layer between the upper panel and the lower panel;
a driver element and a line within the non-display area;
a planar layer covering the lower panel;
a first trench at the planar layer over the driver element and the line;
a lower alignment layer on an upper surface of the planar layer and a lower surface of the first trench, the lower alignment layer exposing a portion of the upper surface of the planar layer at the first trench; and
a sealant at the first trench.
2. The flat panel display of claim 1 , wherein:
the lower surface of the first trench is sunk down from the upper surface of the planar layer with a predetermined depth smaller than a thickness of the planar layer;
the first trench includes a side wall connected to the lower surface of the first trench; and
the sealant contacts:
an exposed portion of the upper surface of the planar layer; and
the side wall of the first trench.
3. The flat panel display of claim 2 , wherein a taper angle between the side wall and the lower surface is at least 50 degrees.
4. The flat panel display of claim 1 , further comprising:
a second trench exposing some of an upper surface of the lower panel at a circumference of the driver element and the line,
wherein the lower alignment layer exposes a lower surface of the second trench and some upper surface of the planar layer at the second trench.
5. The flat panel display of claim 4 , wherein:
the second trench includes a side wall connected to the lower surface of the second trench; and
the sealant directly contacts the exposed upper surface of the planar layer and the side wall.
6. The flat panel display of claim 1 , further comprising:
a passivation layer on an upper surface of the planar layer and the side wall of the first trench,
wherein the lower alignment layer is disposed on an upper surface of the passivation layer, the lower alignment layer exposing a portion of the upper surface of the passivation layer at the first trench.
7. The flat panel display of claim 6 , wherein:
the lower surface of the first trench is sunk down from the upper surface of the planar layer with a predetermined depth smaller than a thickness of the planar layer;
the side wall is connected to the lower surface of the first trench; and
the sealant contacts:
an exposed portion of the upper surface of the passivation layer; and
the side wall of the first trench.
8. The flat panel display of claim 7 , wherein a taper angle between the side wall and the lower surface is at least 50 degrees.