Organic light emitting diode display thermal management
An information handling system organic light emitting diode (OLED) display adapts presentation of visual information to manage a display thermal state, such as to maintain a uniform thermal condition. In one example embodiment, a first display zone of plural pixels presents visual images with a first refresh rate, such as the nominal refresh rate established by the display settings, and a second display zone presents visual images with a partial pixel refresh rate that reduces power dissipation and, thus, thermal energy release so that a more uniform thermal state may be achieved at the display.
1. A system for managing thermal conditions associated with an organic light emitting display (OLED), the system comprising:
a non-transitory memory operable to store instructions; and
instructions stored in the non-transitory memory that when executed on a processor are operable to:
detect a thermal state of an OLED display including at least a temperature of the OLED display;
present visual images at a first zone of the OLED display with a full pixel refresh rate; and
present visual images at a second zone of the OLED display with a partial pixel refresh rate set to achieve an adjustment of the thermal state, including at least reducing the temperature of a portion of the second zone of the OLED display, the partial pixel refresh rate having at least some of the pixels of the second zone at a full refresh rate and at least some of the pixels of the second at less than the full refresh rate.
2. The system of claim 1 wherein the instructions are further operable to:
retrieve degradation information associated with the plural pixels of the second zone; and
apply the degradation information to provide the adjustment of the thermal state.
3. The system of claim 1 wherein the instructions are further operable to:
present visual images in the first zone with a full pixel density; and
present visual images in the second zone with a partial pixel density.
4. The system of claim 3 wherein the partial pixel density comprises a dynamically adjusted ratio of pixels in an on state and an off state based upon the thermal state.
5. The system of claim 1 wherein the partial pixel refresh of the second zone has every other pixel at a full refresh rate.
6. The system of claim 5 where in the instructions further alternate pixel assignments in the second zone between the full refresh rate and the less than full refresh rate over time to balance pixel degradation.
7. The system of claim 5 wherein the less than the full refresh rate comprises off.