Organic light emitting display and method of driving the same
AssigneeSamsung Display Co., Ltd.
InventorsBaek-Woon LEE, In-Hwan JI
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Abstract
The organic light emitting display may include a plurality of pixels for generating light components with predetermined brightness components while controlling the amount of current that flows from a first power source to a second power source via organic light emitting diodes (OLED), a first power source controller for extracting data of the highest gray level among input data items of one frame and for outputting a control value having voltage information corresponding to the highest gray level data, and a first power source generator for generating a controlled voltage value corresponding to the control value and outputting the controlled voltage value to the first power source.
Claims22
An organic light emitting display, comprising:
- a plurality of pixels for generating light components with predetermined brightness components while controlling an amount of current that flows from a first power source to a second power source via organic light emitting diodes (OLED);
- a first power source controller for extracting data of a highest gray level among input data items of one frame and for outputting a control value having voltage information corresponding to the highest gray level data;
- and
- a first power source generator for generating a controlled voltage value corresponding to the control value and outputting the controlled voltage value to the first power source.
A method of driving an organic light emitting display having a plurality of pixels for controlling an amount of current that flows from a first power source to a second power source via organic light emitting diodes (OLED), the method comprising:
- receiving input data;
- determining a control value having a voltage value corresponding to a highest level of the input data;
- and
- generating a controlled voltage value corresponding to the control value and supplying the controlled voltage value by the first power source to the pixels.
A method of driving an organic light emitting display having a scan period in which data signals are input to a plurality of pixels and an emission period in which the pixels simultaneously emit light, the method comprising:
- determining a controlled voltage value of a first power source for supplying current to the pixels to correspond to a highest gray level of red data, a highest gray level of green data, and a highest gray level of blue data of one frame;
- supplying a uniform voltage value from the first power source to the pixels in the scan period;
- and
- supplying the controlled voltage value from the first power source to the pixels in the emission period.
Dependencies are inferred from the claim text.