Patent ID: 9658502
Date: 2017-05-23
CPC Classifications: G02F,H01L

Claim:
1. A method of manufacturing a liquid crystal display (LCD) device having a dual link structure, comprising: preparing a first substrate that comprises a pixel area comprising a switching unit and a non-pixel area which comprises a link part and surrounds the pixel area; forming a gate electrode in the switching unit on the first substrate, and forming a first link line in the link part; forming a first insulating layer covering the first substrate; sequentially forming an active layer, an ohmic contact layer, and a source metal layer on the first insulating layer; patterning the active layer, the ohmic contact layer, and the source metal layer in one mask process to form a data line, a channel pattern branching from the data line, and a second link line, the channel pattern being formed in the switching unit and the second link line being formed in the link part; forming a second insulating layer on the first substrate to cover the channel pattern and the second link line; removing the second insulating layer formed on the channel pattern and the link part; forming a transparent electrode layer on the first substrate from which the second insulating layer on the channel pattern and the link part has been removed; forming a first photoresist pattern on the transparent electrode layer for a channel to be defined on the gate electrode and a second photoresist pattern on the transparent electrode layer above the second link line; and sequentially removing the transparent electrode layer, the source metal layer, and the ohmic contact layer formed on the channel by using the first and the second photoresist pattern as an etching mask to define the channel, form a pixel electrode by a remaining transparent electrode layer under the first photoresist pattern, and complete the second link line comprising a remaining transparent electrode layer, a remaining source metal layer, a remaining ohmic contact layer, and the active layer that are under the second photoresist pattern.