Patent ID: 8816581
Filing Date: 2014-08-26
Classification: H05B

Abstract:
1. A lighting device comprising: a connection terminal; and a light-emitting portion comprising a plurality of light-emitting segments arranged in matrix, wherein each of the plurality of light-emitting segments comprises an anode, a cathode, and an EL layer between the anode and the cathode, wherein an area of a first light-emitting segment of the plurality of light-emitting segments is different from that of a second light-emitting segment of the plurality of light-emitting segments, wherein the EL layer in the first light-emitting segment and the EL layer in the second light-emitting segment emit light of the same color, wherein the anodes of the light-emitting segments are separated from each other, wherein the cathodes of the first light-emitting segment, a third light-emitting segment of the plurality of light-emitting segments and a fourth light-emitting segment of the plurality of light-emitting segments are separated from each other, wherein the anode of the first light-emitting segment is electrically connected to the cathode of the third light-emitting segment, and wherein the cathode of the first light-emitting segment is electrically connected to the anode of the fourth light-emitting segment.