An augmented display system with dynamic see-through transmittance control, the augmented display system comprising: an augmented display screen; a tandem electrochromic , EC, filter disposed over the augmented display screen, the tandem EC filter comprising a first window having a dominant first transmittance characteristic and a second window having a dominant second transmittance characteristic, wherein the dominant first transmittance characteristic comprises faster clearing and the dominant second transmittance characteristic comprises faster darkening, and wherein: a. the first window comprises a first gel-based EC window optimized for faster clearing, EC-C, wherein the composition of the EC gel and the EC cell design parameters in the first window are optimized to achieve faster clearing, and the second window comprises a second gel-based EC window optimized for faster darkening, EC-D, wherein the composition of the EC gel and the EC cell design parameters in the second window are optimized to achieve faster darkening times; and an augmented display transmittance controller configured to individually control the activation of the first window and the second window of the tandem EC filter, wherein the augmented display transmittance controller is configured to: determine from an ambient light sensor output the transmittance required from the first window and the second window for a selected augmented display luminance; and apply appropriate drive voltage waveforms to the first window and the second window to achieve the determined transmittance. an augmented display screen; a tandem electrochromic , EC, filter disposed over the augmented display screen, the tandem EC filter comprising a first window having a dominant first transmittance characteristic and a second window having a dominant second transmittance characteristic, wherein the dominant first transmittance characteristic comprises faster clearing and the dominant second transmittance characteristic comprises faster darkening, and wherein: a. the first window comprises a first gel-based EC window optimized for faster clearing, EC-C, wherein the composition of the EC gel and the EC cell design parameters in the first window are optimized to achieve faster clearing, and the second window comprises a second gel-based EC window optimized for faster darkening, EC-D, wherein the composition of the EC gel and the EC cell design parameters in the second window are optimized to achieve faster darkening times; and a. the first window comprises a first gel-based EC window optimized for faster clearing, EC-C, wherein the composition of the EC gel and the EC cell design parameters in the first window are optimized to achieve faster clearing, and the second window comprises a second gel-based EC window optimized for faster darkening, EC-D, wherein the composition of the EC gel and the EC cell design parameters in the second window are optimized to achieve faster darkening times; and an augmented display transmittance controller configured to individually control the activation of the first window and the second window of the tandem EC filter, wherein the augmented display transmittance controller is configured to: determine from an ambient light sensor output the transmittance required from the first window and the second window for a selected augmented display luminance; and apply appropriate drive voltage waveforms to the first window and the second window to achieve the determined transmittance. determine from an ambient light sensor output the transmittance required from the first window and the second window for a selected augmented display luminance; and apply appropriate drive voltage waveforms to the first window and the second window to achieve the determined transmittance. <EOS>