Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-05-22
2007-05-22
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C345S078000, C345S089000, C345S090000, C345S092000, C315S169100, C315S169300
Reexamination Certificate
active
09667003
ABSTRACT:
An electro-luminescence display which obtains proper color realization even though identical data driving waveforms are applied to each group of R, G and B pixel cells. In the display, a plurality of data lines cross a plurality of gate lines to define a plurality of pixel cell areas. A plurality of power supply lines pass through the pixel cell areas. A switching device is provided in each pixel cell area in such a manner to be electrically connected to the gate line and the data line. A plurality of driving devices are patterned based on a ratio of channel width to channel length in accordance with the type of pixel cell area. Each driving device having a gate connected to one electrode of the switching device and a source connected to the power supply line at each of the pixel cell areas. A plurality of EL diodes are connected to the plurality of driving devices, respectively. A wiring is commonly connected to the plurality of power supply lines. The R, G and B pixel cells are independently driven using different currents, although a common voltage is received by the driving devices.
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Bae Sung Joon
Choi Woong Sik
Han Chang Wook
Hjerpe Richard
LG. Philips LCD Co. Ltd.
Nguyen Jennifer T.
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