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Patent Searching and Data


Title:
APPARATUS FOR INSPECTING LIQUID CRYSTAL DISPLAY
Document Type and Number:
Japanese Patent JPH04248435
Kind Code:
A
Abstract:

PURPOSE: To rapidly and certainly inspect the display grade of a liquid crystal display panel 11 before the loading of a driver IC and to prevent the loss of the driver IC.

CONSTITUTION: A drive signal 30 is inputted to the signal input terminal of a liquid crystal display panel 11 from an inspection signal generation circuit 3 to drive the liquid crystal display panel 11 and a predetermined display image for inspecting display grade is displayed. A projector 4 is arranged on the rear side of the liquid crystal display panel 11 and the display screen of the liquid crystal display panel 11 is projected on a screen 7 through a reflecting mirror 5 and a lens 6 in predetermined magnification and the projected image is subjected to the inspection of the display grade of the liquid crystal display panel 11.


Inventors:
HASHIMOTO TAKAHARU
TANAKA HIDEKI
TSUDA YUSUKE
MINEZAKI SHIGEHIRA
Application Number:
JP1200091A
Publication Date:
September 03, 1992
Filing Date:
February 01, 1991
Export Citation:
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Assignee:
SHARP KK
International Classes:
G01M11/00; G01M11/02; G02F1/13; G03B43/00; (IPC1-7): G01M11/00; G01M11/02; G02F1/13; G03B43/00
Attorney, Agent or Firm:
Shusaku Yamamoto