Patent ID: 11864430
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 15:
16. An organic light emitting diode (OLED) display, comprising
a substrate;
a bottom electrode on the substrate;
a buffer layer on the layer;
a semiconductor layer on the buffer layer;
a first gate insulation layer that covers the semiconductor layer;
a first gate layer on the first gate insulation layer;
an interlayer insulation layer that covers the first gate layer and the first gate insulation layer;
a data layer on the first gate insulation layer;
a passivation layer that covers the data layer and the interlayer insulation layer;
a transistor that includes a channel formed in the semiconductor layer and a gate electrode formed in the first gate layer; and
an organic light emitting diode electrically connected to the transistor, wherein
the bottom electrode overlaps the channel of the transistor on a plane,
a contact hole is formed in at least a part of the buffer layer, the first gate insulation layer, or the interlayer insulation layer,
a pixel includes the organic light emitting diode and at least one transistor electrically connected to the organic light emitting diode,
a pixel area is an area that the at least one transistor included in the pixel is disposed on a plane,
the bottom electrode is exposed by the contact hole which is disposed in the pixel area,
the transistor of the pixel includes a plurality of transistors,
the plurality of transistors include:
a switching transistor connected to a scan line; and
a driving transistor electrically connected to the organic light emitting diode,
the switching transistor is a third transistor including a third semiconductor layer, and
one end of the third semiconductor layer is connected to one end of a first semiconductor layer of the driving transistor and the other end of the third semiconductor layer is electrically connected to a gate electrode of the driving transistor.