Display device with chiplets and light shields

Details Display device with chiplets and light shields Display device with chiplets and light shields

2011-08-09

2011-08-09

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S498000

Reexamination Certificate

active

07994714

ABSTRACT:
A light-emitting diode display device includes a transparent substrate; a plurality of chiplets located over the substrate between a transparent electrode and the substrate, each chiplet including drive circuitry for driving pixels to emit light and including a storage capacitor for storing charge and wherein light illumination of at least a portion of the drive circuit causes the capacitor to leak charge; a connection pad forming a first light shield separate from the drive circuitry located on the surface of each chiplet disposed over the drive circuitry and substantially shielding at least a portion of the drive circuitry from illumination, the connection pad electrically connected to the drive circuitry, and a second light shield disposed under the drive circuitry between the drive circuitry and the substrate to shield at least a portion of the drive circuitry from illumination.

REFERENCES:
patent: 6384529 (2002-05-01), Tang
patent: 6525341 (2003-02-01), Tsujimura et al.
patent: 6636284 (2003-10-01), Sato
patent: 6746905 (2004-06-01), Fukuda
patent: 6958740 (2005-10-01), Nishikawa
patent: 2002/0078559 (2002-06-01), Buchwalter et al.
patent: 2003/0011738 (2003-01-01), Akiyama et al.
patent: 2006/0055864 (2006-03-01), Matsumura et al.
patent: 2007/0069205 (2007-03-01), Jinno

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