Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-04-12
2000-12-05
Cuchlinski, Jr., William A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345147, 345148, 345205, 345206, G09G 332
Patent
active
061573566
ABSTRACT:
Disclosed is a pixel circuit consisting of MOS field-effect transistors (or of thin-film transistors), a capacitor, and an organic light-emitting diode that stores a voltage signal that is used to control the amount of light emitted from the pixel. This pixel circuit is used in a two-dimensional array to form an active-matrix OLED display. The amount of light emitted at each pixel during a frame time is controlled by dividing the frame time into many sub-frames and changing the stored voltage at the beginning of each sub-frame in such a way that the integrated time a voltage is stored during a frame time determines the total amount of light emitted.
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Beck Thomas A.
Cuchlinski Jr. William A.
International Business Machines Company
Marc-Coleman Marthe
Morris Daniel P.
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