Patent ID: 6265833
Filing Date: 2001-07-24
Classification: G09G

Abstract:
An apparatus for driving a self-emitting display device the self-emitting display selected from organic electroluminescent displays, inorganic electroluminescent displays, field-emission displays, plasma displays, or light emitting diodes, the apparatus being provided with an optical signal converter for converting external light to an electrical signal and a display device, comprising:a controller for providing a control signal for selecting a predetermined driving current and driving voltage in accordance with a signal converted by the optical signal converter and a signal indicating whether or not the display device is in use; anda driver for simultaneously providing the driving current and driving voltage in accordance with the control signal output from the controller, and automatically controlling emitting luminance of the display device and at the same time optimally setting power consumption, wherein the driver comprises:a driving current controller for controlling the driving current in accordance with the driving mode control signal of the controller;a driving voltage controller for controlling an actual driving voltage in accordance with the driving mode control signal of the controller;a driving voltage generator for generating the actual driving voltage corresponding to the control signal output from the driving voltage controller; anda driving driver for driving a panel in accordance with both the driving current output from the driving current controller and the actual driving voltage generated by the driving voltage generator, and controlling the emitting luminance.