Patent ID: 9237631
Filing Date: 2016-01-12
CPC Classification: H01L,H05B

Claim Text:
1. A light emitting chip, operating under a DC power supply, comprising: a substrate; a plurality of light emitting elements, electrically connected to each other and arranged on the substrate, having same or different area sizes, and sectionally driven by a plurality of driving voltages, wherein the light emitting elements are divided into a first light emitting element group and a second light emitting element group; and a first external electrical contact and a plurality of second external electrical contacts disposed on light emitting elements for receiving the driving voltages, wherein when a first-section driving voltage is applied to the first light emitting element group, the first light emitting element group is conducted between the first external electrical contact and one of the second external electrical contacts; when a second-section voltage is applied to the first light emitting element group and the second light emitting element group, both of the first and second light emitting element groups are conducted between the first external electrical contact and another of the second external electrical contacts, wherein the first external electrical contact is a positive contact and the second external electrical contacts are negative contacts electrically connected in series.