Organic light-emitting diode display and operation method thereof
AssigneeLG Display Co., Ltd.
InventorsYong-Chul KWON, Dong-Won PARK, Dong-Woo LEE, Joon-Hee LEE
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Abstract
An organic light-emitting diode (OLED) display can include a display panel including sub-pixels; a deterioration sensing unit configured to sense a deterioration state of the display panel; a power supply configured to output a high voltage for driving the sub-pixels; and a timing controller configured to: receive a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit, continuously vary the high voltage based on the deterioration sensing result received from the deterioration sensing unit, and provide the varied high voltage to the sub-pixels.
Claims20
An organic light-emitting diode (OLED) display comprising:
- a display panel including sub-pixels;
- a deterioration sensing unit configured to sense a deterioration state of the display panel;
- a power supply configured to output a high voltage for driving the sub-pixels;
- and
- a timing controller configured to:
- receive a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit,
- continuously vary the high voltage based on the deterioration sensing result received from the deterioration sensing unit, and
- provide the varied high voltage to the sub-pixels.
A method of operating an organic light-emitting diode (OLED) display including a display panel including sub-pixels, the method comprising:
- sensing, via a deterioration sensing unit, a deterioration state of the display panel;
- outputting, via a power supply, a high voltage for driving the sub-pixels;
- receiving, via a timing controller, a deterioration sensing result including information on the deterioration state of the display panel from the deterioration sensing unit;
- continuously varying, via the timing controller, the high voltage based on the deterioration sensing result received from the deterioration sensing unit;
- and
- providing, via the timing controller, the varied high voltage to the sub-pixels.
A method of operating an organic light-emitting diode (OLED) display, the method comprising:
- sensing a deterioration state of a display panel;
- calculating lower boundaries of variable values of a high voltage based on a deterioration measurement value of a pixel or a sub-pixel suffering a severest deterioration;
- continuously calculating a new high voltage within a range of the lower boundaries of variable values of the high voltage;
- and
- calculating a data voltage adapted to the new high voltage and supplying the data voltage to sub-pixels in the display panel to drive driving transistors of the sub-pixels.
Dependencies are inferred from the claim text.