Abstract: A long-life type colorful electroluminescent (EL) display panel is disclosed. The EL display panel comprises a luminescent laminate, two electrodes located at the two sides of the luminescent laminate, several terminals, and a display surface. One of the two electrodes includes plural separated sub-electrodes. Each sub-electrode comprises at least one branch portion and a bus bar connecting at least one branch portion to one of the terminals. Each of the branch portions in one sub-electrode is accompanied with one branch portion in a sub-electrode different from the one sub-electrode, and extends in parallel thereto in a position corresponding to a portion of the display surface which is representative of substantially the same area. By means of the above structure, the display panel will have a life span more than double the normal and can display colorfully.

Abstract: A luminous disk is disclosed in this invention. The luminous disk comprises a disk lamination and a light emitting lamination. The disk lamination at least comprises a substrate and a metallic reflecting layer. The light emitting lamination at least comprises an electroluminescence section having a first side plane and a second side plane, and a biasing section for applying an external electrical signal onto the first and the second side planes so as to make the electroluminescence section luminesce. Basing on the above structure, a new disk having a redoubled effect is available.

Abstract: A car cabin light device capable of storing digital data is disclosed. The car cabin light device comprises a switch, a light emitting element for emitting light under a biasing of an external source, and a socket provided in a car cabin for detachably receiving the light emitting element and conducting the external source thereto. The light emitting element is constructed by a luminous disk having a first surface for accessing data and a second surface for luminescing. The luminous disk comprises: a data recording lamination located at the side of first surface for storing digital data; a light emitting lamination having two side planes and located at the side of second surface; and a biasing lamination for receiving the external source and applying it to the two side planes of the light emitting lamination for emitting light.