Scan lines driver and organic light emmiting display device using the same

An organic light emitting diodes (OLED) display comprising:

• a display area unit having distributed there across, a plurality of data lines, a plurality of scan lines, and a plurality of pixels each respective connected to a corresponding one of the data lines and a corresponding one of the scan lines;
• a scan lines driver including a plurality of successive scan driving blocks, each including a respective first input terminal to which one of a frame start signal or an output signal from a previous scan driving block of the succession of scan driving blocks is input by way of a corresponding first control connection, respective second and third input terminals to which first and second clock signals are applied by way of corresponding second and third control connections, and a respective output terminal from which a corresponding scan signal is output,
• wherein each of the plurality of scan driving blocks respectively comprises:
• a first transistor interposed between the respective first input terminal of its respective scan driving block and a first node of its respective scan driving block and configured so as to selectively transmit therethrough or block the corresponding frame start signal or the output signal of the previous scan driving block in accordance with the clock signal delivered to the second input terminal of its respective scan driving block;
• a second transistor coupled to the respective third input terminal and output terminal of its respective scan driving block and configured so as to selectively coupled the third input terminal with the output terminal in accordance with a voltage level present on the first node of its respective scan driving block;
• and
• a third transistor interposed between the respective first input terminal of its respective scan driving block and the first node so as to be in series with the first transistor and to thereby dissipate a portion of a voltage developed between the first node and the first input terminal of its respective scan driving block.