Patent ID: 8743048
Filing Date: 2014-06-03
Classification: G02F

Abstract:
1. An electrochromic display element comprising: a display substrate; a counter substrate facing the display substrate; display electrodes arranged between the display substrate and the counter substrate; electrochromic layers formed on the respective display electrodes; a plurality of drive elements arranged on the counter substrate at predetermined intervals; a plurality of pixel electrodes arranged on the drive elements; a charge retention layer formed over the pixel electrodes as a continuous layer, the charge retention layer being formed of a mixed film including a polymer and one of electric conductive microparticles and semiconductor microparticles; and an electrolyte layer sandwiched between the display substrate and the charge retention layer, wherein the charge retention layer is formed of a high resistance layer having a surface resistivity of 1.0E+06 ohm/square or above and reduces a voltage applied between the display electrodes and the pixel electrodes.