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The left figure displays the wavelength that ranges from 400 to 800 nanometers in liquid crystal display. From 450 to 480, the band is of blue color. From 580 to 600, the band is of yellow color. From 600 to 615, the band is of amber color. From 615 to 630, the band is of orange color. From 640 to 700, the band is of Red color. The right figure displays the multiple layers labeled, In Ga P, In Ga As and Ge. The first layer, In Ga P absorbs the blue light, the second layer, In Ga As absorbs the green light and third layer absorbs orange light.