| 主权项 |
1. A display device, comprising:
a display panel comprising a white light emitting layer; an electrochromic layer stacked on the display panel; and a voltage application unit for applying a driving voltage to the electrochromic layer; wherein: the display panel displays a white image by emitting light of the white light emitting layer; the electrochromic layer allows a spectrum of the light to be transmitted therethrough to be controlled in accordance with the driving voltage applied thereto; the voltage application unit controls the driving voltage to be applied to the electrochromic layer in synchronization with display of the white image on the display panel, thus to control the spectrum of the light to be transmitted through the electrochromic layer, the white image displayed on the display panel is a first predetermined white image for a first color, a second predetermined white image for a second color or a third predetermined white image for a third color; in a case where the white image displayed on the display panel is the first predetermined white image for the first color, the voltage application unit controls the driving voltage to be applied to the electrochromic layer such that the light transmitted through the electrochromic layer is of the first color; in a case where the white image displayed on the display panel is the second predetermined white image for the second color, the voltage application unit controls the driving voltage to be applied to the electrochromic layer such that the light transmitted through the electrochromic layer is of the second color; and in a case where the white image displayed on the display panel is the third predetermined white image for the third color, the voltage application unit controls the driving voltage to be applied to the electrochromic layer such that the light transmitted through the electrochromic layer is of the third color. |
