Crossword

1234567
Across
  1. 3. used to illuminate the screen from behind (9 letters) - BACKLIGHT
  2. 4. smallest unit of an image (5 letters) - PIXEL
  3. 5. used to view computer output (7 letters) - MONITOR
  4. 6. the level of light emitted (9 letters) - BRIGHTNESS
Down
  1. 1. of image detail (10 letters) - RESOLUTION
  2. 2. lines of pixels (8 letters) - PIXEL
  3. 3. difference between the darkest and lightest parts (8 letters) - CONTRAST
  4. 7. number of times the screen updates per second (13 letters) - REFRESH RATE