| 摘要 |
<p>PURPOSE: A driver for driving an LED is provided to reduce manufacturing costs by reducing the number of an LED chip per channel. CONSTITUTION: An LED channel part(100) includes at least one LED, a field effect transistor, and LED channels. A channel scanning part(200) controls the current of the LED channels. A power controller(300) compares maximum gate voltage with control voltage to minimize Headroom voltage. [Reference numerals] (100) LED channel part(LED string part); (200) Channel scanning part; (300) Power controller</p> |
