ORGANIC LIGHT-EMITTING DISPLAY

摘要

An organic light-emitting display includes: a display panel, scan and data drivers, an ADC, a controller, and a data switch. In a first initialization period, the data switch connects data lines to the data driver, which applies an initialization voltage thereto. In a first sensing period, the data switch connects the data lines to the ADC. The ADC receives analog sensing signals corresponding to first voltages of the data lines, and converts the analog sensing signals into digital sensing signals output to the controller. In a second initialization period, the data switch connects the data lines to the data driver, which applies the initialization voltage thereto. In a second sensing period, voltages at the data lines change to second voltages, the data switch connects the ADC to the data lines, and the ADC converts analog sensing signals corresponding to the second voltages into digital sensing signals output to the controller.

主权项

1. An organic light-emitting display comprising:
a display panel comprising a plurality of pixels respectively connected to a plurality of scan lines and a plurality of data lines; a scan driver configured to sequentially transmit a plurality of scan signals to the scan lines; a data driver configured to receive an image signal and to output a plurality of data output signals; a voltage analog-to-digital converter (ADC) configured to receive analog sensing signals and to output digital sensing signals; a data switch configured to connect the data lines to the data driver or to the voltage ADC in response to a switching signal; and a controller configured to receive original image data and the digital sensing signals, to process the original image data into the image signal based on the digital sensing signals and provide the image signal to the data driver, and to provide the switching signal to the data switch, wherein the data switch is configured to connect the data lines to the data driver, and the data driver is configured to apply an initialization voltage to the connected data lines, in a first initialization period, wherein one or more of the pixels are configured to charge one or more of the data lines with first voltages, the data switch is configured to connect the voltage ADC to the data lines, and the voltage ADC is configured to receive the first voltages from the connected data lines, to convert analog sensing signals corresponding to the first voltages into digital sensing signals, and to output the digital sensing signals to the controller, in a first sensing period, wherein the data switch is configured to connect the data lines to the data driver, and the data driver is configured to apply the initialization voltage to the connected data lines, in a second initialization period, and wherein the display is configured to change voltages applied to the data lines from the initialization voltage to second voltages, the data switch is configured to connect the voltage ADC to the data lines, and the voltage ADC is configured to receive the second voltages from the connected data lines, to convert analog sensing signals corresponding to the second voltages into digital sensing signals and to output the digital sensing signals to the controller, in a second sensing period.