The present invention is directed to a liquid crystal display panel to which
an external horizontal drive circuit is connected in a TAB, COG, or other form.
The liquid crystal display panel is capable of performing aging by a substrate
alone by connecting the external drive circuit. The liquid crystal display panel
includes an active matrix display area, a vertical drive circuit, and a horizontal
aging circuit that supplies signals to a plurality of source lines at one time
provided on a substrate. The medium-sized to small-sized active matrix type liquid
crystal display apparatus is used in a PDA applications, among other, and is capable
of being produced at a high quality and a low cost without using a time sharing
driving method. The active matrix type liquid crystal display apparatus is provided
with a horizontal drive circuit as an external circuit, wherein a vertical drive
circuit is formed integrally with a liquid crystal display area on a glass substrate
by using low temperature PolySi TFTs. The horizontal drive circuit is connected
to a liquid crystal display panel substrate by COG. Output terminals of a driver
IC constituting the horizontal drive circuit and source lines Ls are in a one-to-one correspondence.