Patent ID: 8294363
Filing Date: 2012-10-23
Classification: H01L,H05B,Y10S

Abstract:
1. A light emitting device comprising: a base having a main face; a pixel electrode disposed above the main face of the base, the pixel electrode being disposed in a display region of the main face which is a region when viewed from a direction perpendicular to the main face; a counter electrode that is disposed above the main face opposite to the pixel electrode; a light emitting element that is disposed between the pixel electrode and the counter electrode, the light emitting element emitting a light in response to a current; a power source line to supply the current to the light emitting element; a counter electrode line electrically connected to the counter electrode; and a test circuit to detect a defect of the light emitting device, the test circuit being disposed outside of the display region when viewed from a direction perpendicular to the main face, at least a part of the test circuit overlapping with the counter electrode.