Patent ID: 11908361
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. The display device according to claim 18, wherein
the reference current setting circuit includes:
a parameter holding unit configured to hold, as parameters, a value, on a horizontal axis, of a critical point on a graph and a slope between adjacent critical points on the graph, so that the graph can be obtained, the graph having a value that the index value can take as the horizontal axis and having a value that an adjustment factor for calculating the base reference current can take as a vertical axis, and the graph representing a correspondence between the index value and the adjustment factor;
an adjustment factor calculating unit configured to calculate the adjustment factor based on the parameters and the index value;
an average current calculating unit configured to calculate the average current based on the degrees of degradation of the K pixel circuits; and
a reference current calculating unit configured to calculate the base reference current by multiplying the average current by the adjustment factor, and calculate the reference current for each color based on the base reference current.