| 摘要 |
The analog driver (10) for a display device which is controlled by current, such as an LED, includes a strobed analog input which charges a storage capacitor (18). The voltage across the storage capacitor (18) is fed to the positive input of a comparator (22). The negative input of the comparator (2 2) receives the voltage from a feedback resistor (30) which is in series with t he drive voltage, the drive FET (28) (with a gate connected to the output of th e comparator (22)) and the light emitting device. Additionally, a reset FET (3 2) is provided in parallel with the storage capacitor (18). Displays can be manufactured by a series of panels, each of the panels including an array of these drivers and light emitting devices, along with appropriate control circuitry.
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