well......i think you dsi has broken beyond repair so you need to get a new one
iPods and other devices use a backlight, a luminescent underlay beneath the translucent screen. The screen itself doesn't completely block the light out, even if the screen is displaying a black image.
Yes, it is.
Black is considered as the `absence of light', or the complete absorption of the visible spectrum, from which no light reflects. In video projectors, the light is completely blocked from reaching the screen, creating the same effect. It appears to be black because you're usually watching it in a darkened room and in relation to the brighter areas on the screen, your mind perceives it as being black. In reality, if you were to look at the screen, you'd still see that there's no light hitting it to reflect back to your ryrs from the screen.
If the screen is actually white, it will absorb all light and appear black to your eye. If the screen appears white in normal light, all light will be reflected resulting in the combination of green and red (brown/yellow).
The advantage is that black eye will absorb the light instead of reflecting it. Black absorbs light and white reflects all off it
use a blue light instead of black light
You can either:Slide the screen up.Click the unlock button (near the top on the right side of the phone) and hold it down.Do the same as above except instead of holding it down, the screen will light up and you can hold down the lock icon on the screen to unlock it instead.
Yes, a TV is opaque because it does not allow light to pass through it. Instead, it reflects or emits light to create the images we see on the screen.
Westing house tv has a light black square in the center of the screen
A blue object appears black when illuminated with light because it absorbs most of the light that hits it, including the blue light that gives it its color. This absorption of light prevents the object from reflecting enough light to appear blue, making it appear black instead.
Black objects absorb most of the light that falls on them, so they do not reflect any specific color. Instead, they appear black because they reflect very little light that is visible to the human eye.
Because it uses electrons instead of light, and light is required for color to be present.