Active matrix organic light emitting diode display

Details Active matrix organic light emitting diode display Active matrix organic light emitting diode display

2011-04-19

2011-04-19

Nguyen, Jimmy H (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

Reexamination Certificate

active

07928934

ABSTRACT:
A unit pixel of a display includes a driver circuit, a memory circuit and a current controller. The driver circuit is configured to drive a light emitting device. The memory circuit is coupled to the driver circuit, and is configured to store image data for the unit pixel. The current controller circuit is coupled to the driver circuit, and configured to control a current flowing through at least a portion of the driver circuit such that the driver circuit drives the light emitting device with a constant or substantially constant current.

REFERENCES:
patent: 6841948 (2005-01-01), Yoshida
patent: 7173585 (2007-02-01), Weng
patent: 2005/0093788 (2005-05-01), Shin
patent: 2005/0110721 (2005-05-01), Shin et al.
patent: 2006/0145989 (2006-07-01), Han et al.
Tatsuya Sasaoka et al. “24.4L: Late-News Paper: A 13.0-inch AM-OLED Display with Top Emitting Structure and Adaptive Current Mode Programmed Pixel Circuit (TAC)”. SID 01 Digest, pp. 384-387. 2001.
R.N.A Dawson et al. “4.2: Design of an Improved Pixel for a Polysilicon Active-Matrix Organic LED Display”. 1998.

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