| 摘要 |
The invention relates to a writing board having at least one planar particulate thick-film AC EL lighting element, wherein the EL lighting element has at least one top transparent polymer film and the writing board has a bottom flexible substrate. On said bottom substrate, a conductive structure and the energy supply system and operating electronics, including the at least one on-off switching system and the charging system, are provided. The top polymer film and the bottom substrate are positively cast using a thermoplastic material such that an edge is formed, thereby configuring the writing board at least in a splash water-protected manner. Furthermore, a method for producing a writing board having at least one EL lighting element is described, wherein in addition to the state of the art the energy supply system and operating electronics, including the at least one on-off switching system and the charging system, are disposed on the bottom substrate, and subsequently said unit is provided in an injection molding tool with the integrally molded surrounding plastic and the integrally molded plastic has elastomer properties. Furthermore, the use as a clamping board or writing board or signal board is described, wherein a water-resistant pen can be used to write directly on the text field, or preferably on a water-resistant writing sheet disposed thereon, and the writing sheet and/or the text field may have a graphic configuration and in this manner a log can be filled out, or general notes can be documented, and can be used in this manner for the services performed by the fire department, rescue service, police, military and similar services with poor or insufficient lighting or a foggy environment. |
