The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2000
Filed:
Apr. 24, 1997
Applicant:
Inventors:
Gun-Won Lee, Kyungki-do, KR;
Jin-Ho Choi, Kyungki-do, KR;
Assignee:
Samsung Electronics, Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
324770 ; 324537 ;
Abstract
A liquid crystal display is modified to support exhaustive, quantitative testing after assembly while requiring only a limited number of test pads. Multiple data lines are connected to form data line blocks on-board the display but outside the active area of the array for testing purposes. Each data line block is connected to a corresponding test pad via a control switch, the control switches being preferably formed of TFTs and controlled by test gate lines arranged perpendicular to the data lines in matrix form.