Patent ID: 8149190

Claim:
An electroluminescence display, comprising: (a) an image input signal interface for receiving first image data; (b) a correction circuit for producing corrected image data in response to the first image data and in response to correction data to correct for brightness unevenness due to TFT variations; (c) a memory for storing first image data or correction data; (d) a switch effective in first and second states in response to a function switching signal having first and second conditions, respectively; (e) a panel for emitting light in response to second image data; and (f) a timing signal generation circuit that receives a pixel clock and horizontal/vertical synchronization signals and provides a plurality of timing signals to the image input signal interface, wherein the switch in response to the function switching signal in its first condition connects the memory to the image input signal interface and to provide the stored first image data to the panel as the second image data; and wherein the switch in response to the function switching signal in its second condition connects the memory to the correction circuit to provide the stored correction data to the correction circuit and to provide the corrected image data to the panel as the second image data.