An application of electrophoretic display in large-area screen

作者：Chen, X. D.^*; Chen, Y.; Deng, S. Z.; Xu, N. S.

来源：Asia Display 2007 International Conference (AD'07), Shanghai, PEOPLES R CHINA, 2007-03-12 To 2007-03-16.

• MEPD
• passive-matrix
• lightness

A large-scale (1 m x 1 m) microencapsulated electrophoretic display screen had been developed for the outdoor information displays, in which synthesized nano-particles were employed as the electrophoretic display material. The display has 200 x 192 pixels and the thickness of the display is less than 1 cm. The electrophoretic display screen is driven using 12 V DC voltage. The working current is about 60 mA when the display content is refreshed, while the average driving current is about 20 mA. Also, the display have a wide viewing angle, higher contrast ratio and memory. In addition, eight-level grayscale images were achieved by using pulse modulation driving method.

• 出版日期2007
• 单位中山大学; 光电材料与技术国家重点实验室