Apparatus and procedure for the in situ measurement of quantities of polymer printed onto supports A source of radiation 2 sends electromagnetic radiation onto a droplet 9, 10 of polymer solution or polymer dispersion, which is printed onto a support 4. A detector 3 measures the transmitted or re-emitted radiation. Controlled by a comparator device 6 and a control unit 5, the printing parameters are corrected in situ, if necessary. In this manner, a controlled adjustment of the layer thickness of organic light-emitting diodes and therefore luminosity and color perception can be achieved.

 
Web www.patentalert.com

< Gray-scale image display device that can reduce power consumption when writing data

< Image display device and light emission device

> Optical filter having filter layer containing infrared absorbing dye and ultraviolet absorbing agent

> Active matrix display device using a printing method

~ 00217