Tearing paperThis is an image of a ripped-off account sheet at the crack. It normally looks like a neat split but is not neat when zoomed in. It shows completely random curves.
Vinyl RecordsA vinyl record is a black disc-shaped film made of graphite. It is engraved with a groove pattern to record sound. A phonograph record with a speed of 78 revolutions per minute, a sound groove width of 0.10-0.16 mm, and a sound groove density of 30-50 bars per centimeter. (Please click on the image and then click on the lower right area to enlarge it to see the details.)
LED-backlit LCD Display PrincipleLED backlighting refers to the use of LEDs as the backlight for LCDs. This is an image of an LED-backlit LCD display showing a white part of the number 0. The white RGB number is RGB(255,255,255), which means that all backlight sources are thoroughly excited. So by zooming in, the RGB-LED is clearly visible. We call this sorting the standard RGB arrangement. (Please click on the image and then click on the center area to enlarge it to see the details.)
OLED screen principleThis is the OLED screen on the IPhone. The four sub-pixels are arranged in groups, each in a diamond shape, hence the name diamond arrangement. (Please click on the image and then click on the center area to enlarge it to see the details.)
