What typically happens when there is no brightness or color contrast control set on displays?

When there is no brightness or color contrast control set on displays, a dim image is typically produced. This is because brightness controls the overall light output of the display, and without proper adjustment, the image may appear darker than intended. This lack of brightness adjustment can lead to difficulties in viewing content, particularly in well-lit environments where visibility is crucial.

Additionally, color contrast affects how well different colors can be distinguished on the screen. When contrast is not properly set, the range between the lightest and darkest parts of the image is diminished, further contributing to the perception of a dim or flat image. This can make details harder to see and can lead to a less engaging visual experience.

Overall, the absence of appropriate brightness and contrast settings can significantly degrade the quality of the displayed image, hence leading to the conclusion that the image will be indifferent and less vivid.