Bendable display panel and bendable display device including the same

A bendable display device comprising:

• a bendable display panel including a plurality of data lines and gate lines, a display area displaying an image, a non-display area surrounding the display area on a substrate, a plurality of dummy pixels in the non-display area, surrounding the display area, and each pixel including a pixel driving circuit,
• wherein the pixel driving circuit includes a sensing unit sensing a threshold voltage or a mobility of a driving transistor of the pixel driving circuit or a threshold voltage or a mobility of an organic light emitting diode of each pixel of the plurality of dummy pixels;
• a gate driver driving the plurality of gate lines and a plurality of dummy gate lines;
• a data driver driving the plurality of data lines and a plurality of dummy data lines;
• a controller controlling the gate driver and the data driver;
• and
• a bending sensing unit converting sensing signals, received from the plurality of dummy pixels, into digital sensing signals to transfer the digital sensing signals to the controller,
• wherein the controller determines a bending area of the bendable display panel, based on the digital sensing signals.

A bendable display device, comprising:

• a bendable panel having a display area and a non-display area surrounding the display area;
• a plurality of pixels disposed in the display area;
• and
• a plurality of dummy pixels disposed in the non-display area and including a pixel driving circuit configured to determine a bending area of the bendable display panel by sensing analog signals of a threshold voltage or a mobility of a driving transistor of the pixel driving circuit or a threshold voltage or a mobility of an organic light emitting diode of the plurality of dummy pixels, generate a compensation value based on the sensed signals and provide the plurality of pixels in the bending area with the compensation value to output a normal luminance similar to the plurality of pixels in a non-bending area.