The Transparent Conductive Film Grid Pattern Comparative Analysis And Performance

Flexible transparent conductive film is a transparent electrode, thin film transistor,OLED flexible electronic products such as electronic light-emitting display of important functional materials, because of its good pervious to light performance and excellent electrical conductivity, thus has broad market space for the application and higher market value. In recent years, mainly in ITO transparent conductive films as the main use of material, but in the use of actual production process in terms of material properties, metal indium element characteristic determines the flexibility of the transparent conductive film is poorer, brittleness is higher; In terms of production efficiency, the indium ITO belonging to rare metals, thus makes the transparent conductive film production cost is higher; In addition, ITO using chemical method,and its chemical process trival, increased the preparation time costs, is not conducive to improve the production efficiency. In order to further realize large-scale production, the use of grid pattern of the preparation of conductive film printing way gradually become the mainstream in the transparent conductive film, compared to the ITO can not only reduce costs, more has the good pliable and therefore has great market potential.The main purpose of this research is to use screen printing way in PET surface printing different shapes of raster graphics, through the analysis of the pervious to light performance and conductive performance, optimize the pattern of the best grid parameters, and its application in grid type transparent conductive films in the preparation of production. This article, the first to use the L-Edit software respectively to align the triangle, square, hexagon three raster graphics side length from 300 microns to 900 microns, line width from 20 microns to 100 microns to design theory, and using the theory of light transmittance formula pervious to light values. Then making screen printing plate: due to this topic are delicate printing, so choose 400 mesh/line of wire cable, screen tension is 24 n per inch.Secondly through the silk screen printing is a triangle, square, hexagon three raster graphics of pervious to light performance and conductivity measurements.Through the experiment, further to qualify for 20 microns wide, when the side length is 500 microns three raster graphics have better pervious to light quality and electrical conductivity, at the same time can save printing cost; , then further to further explore the shape of the raster graphics, is six on the edge of the stability of the pervious to light, and light transmittance were higher than regular triangle and square. To determine the three types of pervious to light performance and conductivity between graphics, introduced the quality factor Q, three raster graphics quality factor Q size analysis is as follows: is the triangle square hexagon. Finally, determine the line width is 20 microns, side length is 500 microns of hexagon is the optimization of light transmittance and conductivity: the light transmittance was 82.26%, the resistance is 16.67?/?,is expected to further application in grid type printing of transparent conductive films.