This usually indicates a failure of the backlight inverter. If you shine a very bright flashlight on the screen and can see a recognizable pattern like the OS desktop, that is almost certainly the case. If you are handy and it is an ordinary laptop, you can usually get the part on eBay and swap it out yourself.
Fra Angelico was an early Italian Renaissance artist and a monk, considered to be one of the most talented fresco painters of his time. He was born Guido di Pietro in approximately 1395 at Rupecanina in Mugello, but nothing is known of his parents.
Sandro Botticelli. Sandro Botticelli, Italian painter and illustrator, whose real name was Alessandro do Mariano Filipepi, was born in Florence in 1445. He is the most important artist of the early Italian Renaissance. After he apprenticed as a goldsmith, he studied painting under the Florentine artist Fra Filippo Lippi (1406-69) from 1465 to 1467.