Electro-optical device and electronic apparatus

Details Electro-optical device and electronic apparatus Electro-optical device and electronic apparatus

2005-03-15

2009-06-30

Osorio, Ricardo L (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000

Reexamination Certificate

active

07554514

ABSTRACT:
To ensure uniformity of display regardless of a characteristics difference and temporal deterioration of a light-emitting element. An optical feedback type pixel circuit having a photoelectric transducer therein comprises a capacitor C1for storing as an electric charge an integral value of the photoelectric current output from the photoelectric transducer; a comparator for changing a level of an output voltage Vout at a timing when a first voltage set according to the electric charge stored in the capacitor C1reaches a second voltage set according to data supplied through a data line X; and a transistor T2electrically controlled according to the output voltage Vout from the comparator for making an organic EL element OLED emit light when the first voltage has not reached the second voltage and for making the organic EL element OLED stop emitting the light when the first voltage reaches the second voltage.

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Fish et al., “35.2: Improved Optical Feedback for AMOLED Display Differential Ageing Compensation,”SID 04 Digest, vol. XXXV, Book II, pp. 1120-1123, May 26-27, 2004.

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