Patent Number: 7,132,846

Title: Method and apparatus for testing liquid crystal display

Abstract: A method and apparatus are provided for inspecting an electrical defectiveness of a liquid crystal display substrate. The method includes shorting ESD protection devices with a conductive shorting bar to form a current path on each of signal wirings of the substrate, supplying a current to the signal wirings, and determining a defectiveness of the signal wirings depending on the current flowing on the signal wirings.

Inventors: Kim; Jong Dam (Kyounggi-do, KR), Lee; Hyun Kyu (Seoul, KR), Cho; Yong Jin (Seoul, KR), Jeong; See Hwa (Kyounggi-do, KR)

Assignee: LG.Phillips LCD Co., Ltd.

International Classification: G01R 31/00 (20060101)

Expiration Date: 2019-11-07 0:00:00