Fig. 5: CIPS photodetector assists for color blindness.

a The photoresponse for 450 nm (blue), 520 nm (green), and 638 nm (red) light with varying intensities. The color bar represents the net photocurrent. b The photocurrent difference between red and green as a function of accumulation time. c Schematic diagram of detecting the color-blindness pattern “FD” with a CIPS photodetector array. d, e The designed target image “FD” and its photocurrent map captured by the 5 × 10 CIPS detector array after 3 s illumination. The protanopia vision simulation demonstrates that due to the contrast change between the green and red channels, the letters “FD” become distinguishable for individuals with color blindness. f–h Simulated detector image for the color blindness test card “69” after an accumulation time of 10 s, based on the different photoresponse behavior for red and green light. The normal vision view where the number is clearly visible (f); The protanopia view where the number is indistinguishable (g); The protanopia view after CIPS detector processing where the number becomes distinguishable (h).