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.
He added a new degree of realism in his paintings, along with new subject matter, with varied form and style, also introducing landscapes and natural light. Bellini was an essential part to the development of the Italian Renaissance movement in painting, for his integration of aesthetics or perception of art. He was also the founder of the Venetian School of Painting. He had pupils such as Titian and Giorgione, both of whom later became very famous artists.