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.

Date of Patent:
Jul. 29, 2008

Filed:

May. 28, 2004
Applicants:

Pil-sung Kang, Gyeongsangbook-Do, KR;

Hyun-taek Nam, Gyeongsangbook-Do, KR;

Inventors:

Pil-Sung Kang, Gyeongsangbook-Do, KR;

Hyun-Taek Nam, Gyeongsangbook-Do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); H04N 17/00 (2006.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for testing a display device includes a display device to display test patterns, a graphic process unit to supply analog mode signals and digital mode signals to the display device, and a control unit to allow test patterns of an analog testing mode and test patterns of a digital testing mode to be sequentially displayed on the display device upon receiving a control signal from the graphic process unit, and to output a control signal to the display device to sequentially change display characteristics of an image according to an on-screen-display mode testing menus.


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