Device for and method of driving an electro-optical device

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

Reexamination Certificate

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Details

C250S205000, C250S553000, C250S227110, C345S055000, C345S077000, C345S207000, C362S552000

Reexamination Certificate

active

10992002

ABSTRACT:
To provide an electro-optical device, such as a display or a printer head having a self-luminous element, in which a light-emitting state of a light-emitting element is detected. The electro-optical device comprises a plurality of pixel units arranged in a display region on a substrate in a predetermined pattern, each including a light-emitting element; a plate-like member disposed to overlap the display region and formed of a transparent medium for transmitting light emitted from the plurality of pixel units and internally reflecting a portion of the transmitted light; and light detection means for detecting light that is internally reflected and reaches at least one side of the display region through the inside of the plate-like member.

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