Patent ID: 8952953
Filing Date: 2015-02-10
Classification: G09G

Abstract:
1. A display device, comprising: a power supply unit configured to supply at least a potential on a high-potential side or on a low-potential side; a display unit including a plurality of pixels arranged in a matrix along a first direction and a second direction that are orthogonal to each other and configured to receive power from the power supply unit; a potential detecting unit configured to detect at least a potential on one of the high-potential side and the low-potential side at a potential detecting point provided in each of pixels arranged in the display unit; and a voltage regulating unit configured to regulate at least an output potential on the high-potential side or the low-potential side to be supplied from the power supply unit such that a potential difference between (i) at least one of the potentials on the high-potential side and on the low-potential side and (ii) a reference potential reaches a predetermined potential difference, wherein resistance of a power wire at each part between adjacent pixels along the first direction is higher than resistance of a power wire at each part between adjacent pixels along the second direction, an average distance between adjacent potential detecting points along the first direction is shorter than an average distance between adjacent potential detecting points along the second direction, wherein each of the pixels includes a driver and a luminescent element, the predetermined potential difference is a potential difference expressed as VTFT+VEL−ΔV+Vdrop, where VTFT is a voltage required by the driver, VEL is a voltage required by the luminescent element, ΔV is a potential difference between a potential output by the power supply and a potential of a pixel detected by the voltage detecting unit, and Vdrop is a voltage margin corresponding to ΔV.