Circuit and method for driving light sources
AssigneeNovatek Microelectronics Corp.
InventorWen-Pin Tsai
Life of this patent
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Abstract
A driving circuit that includes a plurality of sub-driving circuits and a plurality of first switching circuits is introduced. The sub-driving circuits is configured to supply a plurality of driving currents to drive a first group of light sources to emit light to form a first pixel on a display medium. The first switching circuits are respectively coupled to the sub-driving circuits and are configured to control the plurality of sub-driving circuits to supply the driving currents to the first group of light sources according to the pixel data, wherein a current value of each of the plurality of driving currents is corresponding to a bit order of a respective bit of the pixel data.
Claims19
A light source driving circuit, comprising:
- a plurality of sub-driving circuits, configured to supply a plurality of driving currents to drive a first group of light sources to emit light to form a first pixel on a display medium;
- and
- a plurality of first switching circuits, respectively coupled to the plurality of sub-driving circuits and configured to control the plurality of sub-driving circuits to supply the driving currents to the first group of light sources according to pixel data, wherein a current value of each of the plurality of driving currents is corresponding to a bit order of a respective bit of the pixel data.
A driving method adapted for a driving circuit comprising a plurality of sub-driving circuits, and a plurality of first switching circuits, the driving method comprising:
- supplying, by the plurality of sub-driving circuits, a plurality of driving currents to drive a first group of light sources to emit light to form a first pixel on a display medium;
- controlling, by the plurality of first switching circuits, the plurality of sub-driving circuits to supply the driving currents to the first group of light sources according to pixel data, wherein a current value of each of the plurality of driving currents is corresponding to a bit order of a respective bit of the pixel data.
Dependencies are inferred from the claim text.