Method for manufacturing a liquid crystal display

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6008065
SERIAL NO

08754644

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A method for manufacturing a liquid crystal display is provided. The method includes the steps of forming a gate electrode and a gate pad by sequentially depositing a first metal film and a second metal film on a substrate of a TFT area and a pad area, respectively, by a first photolithography process, forming an insulating film on the entire surface of the substrate on which the gate electrode and the gate pad are formed, forming a semiconductor film pattern on the insulating film of the TFT area using a second photolithography process, forming a source electrode and a drain electrode composed of a third metal film in the TFT area using a third photolithography process, forming a protection film pattern which exposes a portion of the drain electrode and a portion of the gate pad on the substrate on which the source electrode and the drain electrode are formed using a fourth photolithography process, and forming a pixel electrode connected to the drain electrode and the gate pad on the substrate on which the protection film pattern is formed using a fifth photolithography process. By using this method it is possible to reduce the number of photolithography steps required for manufacture and to prevent a battery effect and generation of a hillock in the resulting structure.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SAMSUNG DISPLAY CO., LTD.

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Jueng-gil Kyungkido, KR 13 282
Lee, Jung-ho Kyungki-do, KR 133 1522
Nam, Hyo-rak Kyungki-do, KR 18 271

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation