System for testing field emission flat panel displays

Details System for testing field emission flat panel displays System for testing field emission flat panel displays

1998-04-15

2000-03-07

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Apparatus

Testing or adjusting means

H01L 942

Patent

active

060332816

ABSTRACT:
A system for testing field effect flat panel displays (FEFPDs) disposes the FEFPD in a vacuum and measures electron stream emission from selectively activated pixels of the FEFPD. Selective activation is effected using a linear stage mechanism associated with each contact pad of the FEFPD. Each linear stage mechanism comprises an electrically conducting ball bearing which is rolled over the associated contact pad to thereby complete an electrical circuit between an activation signal source and the electrodes of the pixel under test.

REFERENCES:
patent: 5730634 (1998-03-01), Seko

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