Reflection type liquid crystal display device and method of manufacturing the same

Abstract

Disclosed are a reflection type LCD and method of manufacturing the same. A wiring layer having a first and second metal layer ( 102, 104 ) is formed on a substrate ( 100 ) including a display region (D) and a pad region (P). Upon the substrate ( 100 ) and the wiring layer is formed a first passivation layer ( 155 ), and contacts with a wiring terminal ( 115 ) and the first metal layer ( 102 ). A second passivation layer ( 180 ) is formed on the substrate except the pad region (P). The pad contact hole ( 160 ) extends to a position under the second passivation layer ( 180 ). The second passivation layer ( 180 ) covers a region in the pad contact hold ( 160 ) where the step coverage of the pad electrode ( 170 ) is poor, thereby preventing a battery effect.

1 . A reflection type liquid crystal display device, comprising: 
 a substrate including a display region, a pad region, and a boundary region between the display region and the pad region;    a wiring layer formed on the substrate, the wiring layer comprising a first metal layer and a second metal layer stacked on the first metal layer, the wiring layer having a wiring layer terminal corresponding to the pad region;    a first passivation layer formed on the substrate having the wiring layer, the first passivation layer having a pad contact hole that exposes the first metal layer corresponding to the wiring layer terminal and a portion of the wiring layer connected to the wiring layer terminal;    a pad electrode continuously formed on a sidewall and a bottom of the pad contact hole and on a portion of the first passivation layer, the pad electrode comprising a transparent conductive layer and making contact with the first metal layer corresponding to the wiring terminal and a portion of the wiring layer connected to the wiring layer terminal;    a second passivation layer formed on the pad electrode corresponding to the boundary region and on the first passivation layer corresponding to the display region and the boundary region; and    a reflective electrode formed on the second passivation layer corresponding to the display region;    wherein the pad contact hole extends to a position under the second passivation layer located on the boundary region.    
   
   
       2 - 22 . (canceled)