Integration of screen-printed electroluminescent matrix displays in smart textile items — Implementation and evaluation

Abstract

Present work describes integration of electroluminescent matrix displays in textile objects and evaluation of possible practical applications. Aspects restricting the application of electroluminescent elements in clothing, like high driving voltage and low light intensity, are discussed. Possible solutions for these issues are proposed. A low-cost driver for a passive matrix display and the underlying non-conventional method of multiplexing is presented. Measures to bring the driver circuit to the conformity with safety regulations are described. Obtained results show that the integration of electroluminescent pixel displays into textile items can be carried out with low technical effort using available technology; a good visibility is achieved in most indoor situations.