Background light module for LCD-display, has light guide with light emitting diodes to produce different color lights based on blood pressure measurement result, where lights are reflected from reflector and deflected by groove`s side walls

摘要

The module has a light guide, resting on a reflector, including light emitting diodes (30) at a side. A surface of the guide is provided with a groove (21). The diodes produce different color lights according to the blood pressure measurement result and are placed at a specific distance from each other, where the lights are reflected from the reflector and deflected by side walls of the groove. Liquid crystal plate rests upon the guide. The groove is found between the diodes and extends in a transverse direction from a side to other side of the light guide.