Patent ID: 11893932
Assignee: JOLED INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. A current limiting method of limiting current consumption in a plurality of pixels included in a display panel that displays a video according to a video signal, each of the plurality of pixels including a self-luminous element, the plurality of pixels being arranged in a matrix, the current limiting method comprising:
a gain computation step of calculating a screen power value corresponding to power consumption in the plurality of pixels in reference to a pixel value included in the video signal corresponding to each of the plurality of pixels, and determining a gain in reference to the screen power value;
a gain multiplication step of multiplying the pixel value by the gain and outputting a limit signal including the pixel value multiplied by the gain; and
a lighting control step of controlling a lighting state of the plurality of pixels in reference to a predicted power value corresponding to power predicted to be consumed in the plurality of pixels, the predicted power value being computed according to the limit signal, to reduce a power consumption value in the plurality of pixels to a value equal to or smaller than a control target power value, wherein
the gain is 1 when the screen power value is equal to or smaller than the control target power value, and
the gain is a value equal to or smaller than a value obtained by dividing the control target power value by the screen power value, when the screen power value exceeds the control target power value.