A system, comprising: a display element , comprising: a plurality of pixel groups , each of the plurality of pixel groups comprising: a first sub-pixel configured to output light of a first color; a second sub-pixel configured to output light of a second color; a third sub-pixel configured to output light of a third color; and a fourth sub-pixel configured to output light; wherein the fourth sub-pixel has a maximum brightness that is at least four times dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel; wherein the first sub-pixel is a red sub-pixel configured to output red light, wherein the second sub-pixel is a green sub-pixel configured to output green light, wherein the third sub-pixel is a blue sub-pixel configured to output blue light, wherein the fourth sub-pixel is another green sub-pixel configured to output green light; the system comprising at least one processor communicatively coupled to the display element and configured to: determine whether to operate in a day mode or a night mode; when in a day mode, the at least one processor is configured to: receive red green blue (RGB) video; encode the RGB video as grayscale video; and drive some or all of the red, green, and blue pixels corresponding to the RGB video and some or all of the fourth sub-pixels corresponding to the grayscale video such that enhanced RGB plus grayscale images are displayed; and when in the night mode, the at least one processor is further configured to receive night vision grayscale video, and only drive some or all of the fourth sub-pixels corresponding to the night vision grayscale video such that night vision grayscale images are displayed. a display element , comprising: a plurality of pixel groups , each of the plurality of pixel groups comprising: a first sub-pixel configured to output light of a first color; a second sub-pixel configured to output light of a second color; a third sub-pixel configured to output light of a third color; and a fourth sub-pixel configured to output light; a first sub-pixel configured to output light of a first color; a second sub-pixel configured to output light of a second color; a third sub-pixel configured to output light of a third color; and a fourth sub-pixel configured to output light; wherein the fourth sub-pixel has a maximum brightness that is at least four times dimmer than a maximum brightness of each of the first sub-pixel, the second sub-pixel, and the third sub-pixel; wherein the first sub-pixel is a red sub-pixel configured to output red light, wherein the second sub-pixel is a green sub-pixel configured to output green light, wherein the third sub-pixel is a blue sub-pixel configured to output blue light, wherein the fourth sub-pixel is another green sub-pixel configured to output green light; the system comprising at least one processor communicatively coupled to the display element and configured to: determine whether to operate in a day mode or a night mode; when in a day mode, the at least one processor is configured to: receive red green blue (RGB) video; encode the RGB video as grayscale video; and drive some or all of the red, green, and blue pixels corresponding to the RGB video and some or all of the fourth sub-pixels corresponding to the grayscale video such that enhanced RGB plus grayscale images are displayed; and when in the night mode, the at least one processor is further configured to receive night vision grayscale video, and only drive some or all of the fourth sub-pixels corresponding to the night vision grayscale video such that night vision grayscale images are displayed. <EOS>