A new device has been created to accurately measure how much light passes through transparent materials and how much gets scattered. This is important for making LCD screens. The new device can measure all these things at once, which current methods can't do. By using a special design with extra parts, the device can give more precise results, especially for materials that reflect a lot of light. This means we can now measure these properties more accurately, helping improve the quality of transparent materials used in technology like LCD screens.