System and method for gamma regulating of liquid crystal display
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United States of America Patent
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Issued Date -
Jul 3, 2008
app pub date -
Dec 29, 2007
filing date -
Dec 29, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An exemplary gamma regulating system (20) for an LCD has a test-needed LCD (26), a light sensor (21), and a MCU (24). The LCD displays each gray scale image according to internal presetting standard gamma curve. The light sensor measures a luminance value of the gray scale image displayed by the test-needed LCD, and converts the luminance value to a voltage signal. The MCU compares the voltage signals representing the measured luminance values with the parameter data corresponding to the standard gamma curve, and regulates a gray voltage according the comparing result.
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