Patent ID: 9218082
Filing Date: 2015-12-22
Classification: G02F,G06F

Abstract:
1. A liquid crystal display device with a built-in touch screen comprising: a substrate having a pixel region; a thin film transistor in the pixel region; a first passivation layer on the thin film transistor, the first passivation layer including a first contact hole; a common electrode on at least one portion of the first passivation layer, the common electrode formed of a first material and operable to sense touch; a first conductive layer inside the first contact hole so as to be electrically connected to a data electrode of the thin film transistor; a conductive line on at least one portion of the first passivation layer and electrically connected to the common electrode, the conductive line formed of a second material; a second conductive layer on the first conductive layer; a second passivation layer on the common electrode, the first passivation layer, and the conductive line, the second passivation layer including a second contact hole; and a pixel electrode on the second passivation layer, the second conductive layer between the pixel electrode and the first conductive layer, the pixel electrode electrically connected to the second conductive layer through the second contact hole such that the pixel electrode is electrically connected to the data electrode via the first and second conductive layers, wherein the first and second materials are different from each other, wherein the first conductive layer includes a same material as the first material and the second conductive layer includes a same material as the second material, and wherein the pixel electrode and the second conductive layer are formed of different types of materials.