Method for operating an optoelectronic semiconductor device and optoelectronic semiconductor device

An optoelectronic semiconductor device comprising:

• a first optoelectronic semiconductor chip for generating blue light,
• a second optoelectronic semiconductor chip for generating green light,
• a third optoelectronic semiconductor chip for generating red light
• a driver unit which supplies the semiconductor chips with current independently from each other during operation, and
• a carrier which is a heat sink and on which the semiconductor chips and the driver unit are mounted together,
• wherein the driver unit is configured to operate the third semiconductor chip based on a temperature-brightness characteristic curve stored in the driver unit, and the temperature-brightness characteristic is configured for a minimum color location deviation over an intended operating temperature range with respect to at least one reference color location, wherein the temperature-brightness characteristic curve for the third semiconductor chip slopes less steeply toward higher temperatures than a curve configured for constant brightness over the operating temperature range, and wherein the optoelectronic semiconductor device is free of phosphors.

A method for operating an optoelectronic semiconductor device, wherein

• the semiconductor device comprises a first optoelectronic semiconductor chip for generating light of a first color and a third optoelectronic semiconductor chip for generating light of a third color,
• the semiconductor device comprises a driver unit which supplies the semiconductor chips with current during operation,
• the third semiconductor chip is operated on the basis of a temperature-brightness characteristic curve stored in the driver unit,
• the temperature-brightness characteristic curve is configured for a minimum color location deviation over an intended operating temperature range with respect to at least one reference color location,
• the temperature-brightness characteristic curve for the third semiconductor chip slopes less steeply towards higher temperatures than a curve designed for constant brightness over the operating temperature range,
• the operating temperature range is from 0° C. or less to 100° C. or more with respect to a temperature of an active zone of the third semiconductor chip, and
• the reference color location or at least one of the reference color locations is located at coordinates 0.31;
• 0.33 in the CIE-xy standard chromaticity diagram with a tolerance of at most 0.1 units.