System and method for setting brightness uniformity in an active-matrix organic light-emitting diode (OLED) flat-panel display
A brightness calibration system for and method of setting brightness uniformity in a video display, such as an active-matrix organic light-emitting diode (OLED) flat-panel display. The brightness calibration system of the present invention includes an OLED display assembly that further includes a di...
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| Format | Patent |
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| Language | English |
| Published |
21.01.2005
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| Online Access | Get full text |
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| Summary: | A brightness calibration system for and method of setting brightness uniformity in a video display, such as an active-matrix organic light-emitting diode (OLED) flat-panel display. The brightness calibration system of the present invention includes an OLED display assembly that further includes a display control circuit, an active-matrix display, a DC power supply; and a measurement circuit. In a measurement mode, the brightness calibration system and method of the present invention subjects a video display to a brightness calibration operation that alternately measures the output light intensity of every pixel for a given input voltage and saves the measured light intensity in memory. In a display mode, the brightness calibration system and method of the present invention applies a corrective voltage to each pixel, in real time, so that each pixel has substantially the same output light intensity as its neighboring pixel. |
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