Patent ID: 7944459

Claim:
A light-emitting device comprising: a plurality of light-emitting elements, each emitting light with a light amount according to a driving signal; a storage unit that stores first gray-scale data for assigning a gray-scale value of each of the plurality of light-emitting elements; a data processing unit that generates second gray-scale data from the first gray-scale data stored in the storage unit for each light-emitting element such that, under a condition that the gray-scale magnitude assigned by the first gray-scale data is large, a gray-scale magnitude assigned by the second gray-scale data is made small and under a condition that the gray-scale magnitude assigned by the first gray-scale data is small, the gray-scale magnitude assigned by the second gray-scale data is made large; and a non-symmetrical driving unit that causes the individual light-emitting elements to emit light in a first period upon supply of a driving signal according to the first gray-scale data stored in the storage unit, and causes the individual light-emitting elements to emit light in a second period different from the first period upon supply of a driving signal according to the second gray-scale data generated by the data processing unit, wherein a sum of the gray-scale magnitude of the first gray-scale data and the gray-scale magnitude of the second gray-scale data for each light-emitting element is substantially equal.