CPC G02F 1/13338 (2013.01) [G02F 1/133524 (2013.01); G02F 1/133526 (2013.01); G02F 1/1503 (2019.01); G02F 1/155 (2013.01); G06V 40/1306 (2022.01); G09F 9/301 (2013.01); G09G 3/3696 (2013.01); G02F 2001/1555 (2013.01); G06V 40/1341 (2022.01)] | 16 Claims |
1. A display device, comprising:
a first display panel for displaying a first image;
a fingerprint sensor disposed on one surface of the first display panel and detecting light passing through the first display panel; and
a first light transmission control unit disposed between the first display panel and the fingerprint sensor for controlling transmission of light,
wherein the first light transmission control unit includes:
a first base substrate and a second base substrate facing each other;
a first electrode disposed on one surface of the first base substrate;
a second electrode disposed on one surface of the second base substrate facing the first base substrate; and
a light transmission control layer disposed between the first electrode and the second electrode, and
the light transmission control layer includes:
an electrochromic layer disposed on one surface of the second electrode facing the first electrode and configured to change a color according to an oxidation-reduction reaction by a first driving voltage applied to the first electrode and a second driving voltage applied to the second electrode;
a counter layer disposed on one surface of the first electrode facing the second electrode and located between the first electrode and the electrochromic layer for assisting the oxidation-reduction reaction of the electrochromic layer; and
an electrolyte layer disposed between the electrochromic layer and the counter layer for providing cations and anions to cause the oxidation-reduction reaction in the electrochromic layer and the counter layer.
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