COLOR BLEEDING
Color bleeding is a phenomenon that can occur in CRT (Cathode Ray Tube) technology, where the electron beams responsible for illuminating different color phosphors on the screen lose their focus. This results in colors bleeding into adjacent areas and can lead to a smearing or overlapping effect in the displayed image.
In a CRT display, there are three electron beams - red, green, and blue - that scan across the phosphor-coated screen to create the desired colors. Each beam should be precisely focused on its corresponding color phosphor to ensure accurate color reproduction. However, over time, factors such as magnetic fields, component aging, or misalignment can cause the electron beams to deviate from their intended paths.
When color bleeding occurs, the electron beams lose their sharpness and can spill over into neighboring phosphor areas. This can cause the colors to appear blurry, hazy, or create unwanted color fringing effects. For example, if there is color bleeding between red and green, it may result in a yellowish or orange tint around objects or text on the screen.
Color bleeding can be more noticeable in areas of high contrast, where colors transition abruptly. The effect is most pronounced in areas where bright and saturated colors are displayed, as they have a greater impact on neighboring colors.
While color bleeding was a limitation of CRT technology, it was also exploited creatively in certain artistic and visual contexts. Some artists and designers intentionally incorporated color bleeding effects into their works to create a sense of visual distortion or a retro aesthetic reminiscent of older CRT displays.