Multiple message selective telltale display,申请号US19930140949-传众专利搜索

Multiple message selective telltale display

申请公布号：US5510776(A)

申请号：US19930140949

申请日期：1993.10.25

申请公布日期：1996.04.23

申请人：

DELCO ELECTRONICS CORPORATION

发明人：MURPHY, MORGAN D.;BORREGO, DIEGO A.;SKIVER, STEVEN G.

分类号：B60K35/00;B60Q3/04;(IPC1-7):G05B23/02;G09G3/00

主分类号：B60K35/00

摘要：A plurality of optical projectors focus telltale messages, one at a time, onto a vehicle instrument panel display area. In one embodiment a logic circuit assigns priority to the messages and displays only the message of higher priority when more than one message is prompted. The projection lamps are high intensity LEDs arranged in parallel but having diodes in series with lower priority lamps to hold them off when a higher priority lamp is energized. A constant current source regulates the LED current. In another embodiment two message lamps are controlled by a logic circuit such that when both are prompted for display an oscillator causes the messages to be displayed alternately, but when either message alone is prompted, its lamp will be energized continuously.