| 摘要 |
<p>An attenuation detection method for a liquid crystal display with a LED backlight plate includes: synchronistically driving a plurality of LED units in a one-to-one correspondence manner with a plurality of driving signals which are orthogonal to each other, detecting the light emitted by respective LED units and transforming it into detected electric signals with an optical detector (33), separating lighting data of respective LED units from the detected electric signals with a processing device (36), comparing the separated data with the data pre-stored in a storage device (35), and compensating for the attenuation amount. A display device using the detection method is also provided.</p> |
