| 摘要 |
A circuit and method for controlling the color balance of a flat panel display without losing gray scale resolution of the display screen. Within a FED screen (200), a matrix of rows and columns is provided and emitters are situated within each row-column intersection. Rows are activated sequentially by row drivers (220a-220c) and corresponding individual gray scale information (voltages) is driven over the columns by column drivers (240-240c). When the proper voltage is applied across the cathode and anode of the emitters, they release electrons toward a phosphor spot, e.g., red, green, blue, causing an illumination point. Within each column driver (240a-240c), a digital to analog converter (340a-340c) contains two data-in voltage-out transformation functions, a first function corresponding to a first voltage intensity and a second function corresponding to a lesser voltage intensity for a same digital color value.
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