Patent ID: 11922880
Assignee: LX SEMICON CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A current supply circuit comprising:
a voltage/current converter configured to convert a data voltage, received from a data driving circuit, into a data current; and
a first current mirror circuit configured to mirror the data current so that a light-emitting diode (LED) current flows into an LED array; and
a compensation current generation circuit connected to the voltage/current converter and configured to adjust the data current transmitted to the first current mirror circuit, wherein
the data current has a first change rate in a first greyscale section and a second change rate in a second greyscale section in relation to the data voltage, and
the compensation current generation circuit includes a first current source comprising a transistor configured to output a base current defined by the data voltage, and a second current source configured to form a common node by being electrically connected to one terminal of the first current source and to output a direct current.