Patent ID: 11908369
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The contrast enhancement device of claim 14, wherein the input test data include first and second input channel test data for the first and second channels with respect to the first display region, and third and fourth input channel test data for the first and second channels with respect to the second display region,
wherein the reference test data include first through fourth reference channel test data respectively corresponding to the first through fourth input channel test data,
wherein, in the diagnosis mode, the first and second channel process circuits respectively generate first and second output channel test data as the output test data by performing the contrast enhancement process on the first and second input channel test data in the first period, and respectively generate third and fourth output channel test data as the output test data by performing the contrast enhancement process on the third and fourth input channel test data in the second period, and
wherein the diagnosis circuit generates, as the diagnosis result data, first region diagnosis result data by respectively comparing the first and second output channel test data with the first and second reference channel test data, and second region diagnosis result data by respectively comparing the third and fourth output channel test data with the third and fourth reference channel test data.