System of LED drivers for driving display devices

Details System of LED drivers for driving display devices System of LED drivers for driving display devices

2005-08-16

2005-08-16

Hjerpe, Richard (Department: 2675)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S082000, C345S083000

Reexamination Certificate

active

06930679

ABSTRACT:
The present invention discloses a set of devices in cascade for driving display devices. For each of the driving devices, the serial-data-in pin and the serial-data-out pin traditionally used to transfer image data can further deliver commands from and/or internal statuses of the driving devices to an external controller. Accordingly, inventive functions of command transfer and/or status feedback can be achieved without adding extra pins. The present invention also discloses a device suitable for forming the driving set, in which a command register and/or a status register is provided.

REFERENCES:
patent: 2001/0028346 (2001-10-01), Kudo et al.
patent: 2003/0117382 (2003-06-01), Pawlowski et al.
patent: 2003/0160771 (2003-08-01), Fraser et al.
“LCD Control Apparatus & LCD Apparatus,” Kudo et al.; U.S. Appl. No. 09/059,363, (Flied: Apr. 14, 1998).
“Configurable Panel Controller & Flexible Display Interface,” Pawlowski et al.; U.S. Appl. No. 10/012,968 (Filed: Dec. 7, 2001).
“Interchangeable Display Modules for Portable Handheld Devices,” Fraser et al.; U.S. Appl. No. 10/085,310, (Filed: Feb. 28, 2002).

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