Patent ID: 9275572
Filing Date: 2016-03-01
CPC Classification: G09G

Claim Text:
1. A display device, comprising: a power supplier configured to output at least one of a high-side output potential and a low-side output potential; a display in which a plurality of pixels are arranged and which receives power supply from the power supplier; a plurality of scanning lines connected to a corresponding one of the pixels; a plurality of data lines connected to a corresponding one of the pixels; two or more detecting lines each of which has one end connected to a corresponding one of two or more pixels inside the display, and is for transmitting a high-side applied potential or a low-side applied potential that is applied to the corresponding one of the two or more pixels; a relay connected to the other end of each of the two or more detecting lines and to one end of one or more output lines which are fewer in number than the two or more detecting lines, and configured to output, to the one or more output lines, at least one applied potential out of the two or more high-side applied potentials or at least one applied potential out of the two or more low-side applied potentials, the high-side and low-side applied potentials being transmitted by the two or more detecting lines; and a regulator connected to the relay via the one or more output lines and configured to regulate at least one of the high-side output potential and the low-side output potential to be outputted by the power supplier, such that any one of the following potential differences reaches a predetermined potential difference: a potential difference between a reference potential and the high-side applied potential outputted by the relay; a potential difference between the reference potential and the low-side applied potential outputted by the relay; and a potential difference between the high-side applied potential and the low-side applied potential, wherein the display and the relay are provided on the same substrate, each of the pixels includes a driver, a switching element, and a luminescence element, the driver including a source electrode and a drain electrode, the switching element including a gate electrode, a source electrode, and a drain electrode, the luminescence element including a first electrode and a second electrode, each of the plurality of scanning lines is connected to the gate electrode of the switching element of the corresponding one of the pixels, each of the plurality of the data lines is connected to one of the source electrode and the drain electrode of the switching element of the corresponding one of the pixels, the one end of each of the detecting lines is connected to any one of the source electrode of the driver, the drain electrode of the driver, the first electrode, and the second electrode, and the predetermined potential difference is determined based on VTFT, VEL, ΔV, and Vdrop, where VTFT is the voltage required by the driver, VEL is the voltage required by the luminescent element, ΔV is the potential difference between the potential outputted by the power supplier and the potential of the luminescent pixel measured by a voltage measurer, and Vdrop is the voltage margin corresponding to ΔV, which is determined by a voltage margin setter accessing a voltage margin conversion table that indicates a particular Vdrop that corresponds to a designated ΔV.