Samsung Display Co., Ltd.

Hak-Gyu Kim

Young-Joo Park

Ji-Suk Lim

An organic light emitting diode (OLED) display including a display panel, a chip on film, and a printed circuit (PCB) is disclosed. In one embodiment, the display panel includes a display area having an OLED and a pixel circuit, and a pad area in an outer side of the display area. The chip on film is connected to the pad area, is bent toward a non-luminescent surface of the display panel, and include an integrated circuit chip. The PCB includes at least a part overlapping with the chip on film in an outer side of the non-luminescent surface of the display panel, and an opening for receiving the integrated circuit.

Organic light emitting diode display

A gate driving circuit includes a first shift register and a second shift register for driving odd gate lines. The first shift register includes a first plurality of cascade-connected stages that sequentially output a plurality of first gate signals. A first stage of the first shift register receives a first vertical start signal. The second shift register includes a second plurality of cascade-connected stages to sequentially output a plurality of second gate signals. The first stage of the second shift register receives an output signal of the first stage of the first shift register as its vertical start signal. A data charging rate may be improved by ensuring the timing margin of each gate signal, so that the driving reliability of the gate driving circuit may be improved.

Growing community of inventors

Yongin, South Korea

Hak-Gyu Kim