Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-05-30
2011-12-13
Nguyen, Chanh (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
08077137
ABSTRACT:
An LCD driving system using at least one of each of red, green and blue LED arrays composed of red LEDs, green LEDs, and blue LEDs connected in series, respectively. An SMPS includes an AC-DC converter for converting an externally inputted AC voltage to a DC voltage, and red, green and blue LED DC-DC converters for converting the DC voltage to a predetermined magnitude of DC voltage for driving the red, green and blue LED arrays. A light source includes a substrate with the red, green and blue LED arranged thereon, and each of red, green and blue LED constant current controllers for controlling the current running through the red, green and blue LED arrays so as to maintain predetermined outputs of the LEDs. A bridge board electrically connects the red, green and blue LED DC-DC converters with the red, green and blue LED constant current controllers, respectively.
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McDermott Will & Emery LLP
Nguyen Chanh
Samsung LED Co., Ltd.
Walthall Allison
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