ELECTROLUMINESCENCE DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a novel and improved electroluminescence display device that can adaptively control a low power voltage having a negative voltage level.SOLUTION: An electroluminescence display device according to an embodiment of the present invention includes: a display panel; an analog-to-digital converter; an adaptive voltage controller; and a voltage converter. The analog-to-digital converter is configured to convert at least one feedback voltage for detection of an ohmic drop of the low power voltage to generate a digital feedback signal. The adaptive voltage controller is configured to generate a voltage control signal to be changed due to distribution of the input video data and the ohmic drop of the low power voltage on the basis of input video data and the digital feedback signal. The voltage converter is configured to generate the low power voltage on the basis of an input voltage and the voltage control signal.SELECTED DRAWING: Figure 1