Bright light increases the release of serotonin, a chemical that enhances mood and helps alleviate sadness. Unfortunately dark rooms enhance the gloomy mood in people and make them lazy.. !! There is an evidence for how the bright white screen exposure benefits sleep, mood, concentration, and even athletic performance is overwhelming. So What’s the solution ?? White Screen..!! You heard it right ..!! Many scientists says that White Screen enhances good mood by displaying the plain white light. Yes..!! Lightning is important for photographers to portray their photos perfectly, doctors to view the x ray films, artists to view their sketches and drawings.