Samsung Display Co., Ltd.

Sangsub Kim

Jaehwan Chu

Keunwoo Kim

Hanbit Kim

Dokyeong Lee

Doo-Na Kim

Taewook Kang

Meejae Kang

Doona Kim

Yongsu Lee

Yunjung Oh

Do Kyeong Lee

Hyena Kwak

Hyuncheol Hwang

Junehwan Kim

Bummo Sung

The invention provides a display apparatus and a method for manufacturing the same. The display apparatus includes a substrate and a thin-film transistor. The thin-film transistor includes a semiconductor layer disposed on the substrate and includes a gate electrode overlapping the semiconductor layer and insulated from the semiconductor layer. The semiconductor layer includes a polysilicon layer and an organic layer. The polysilicon layer has a first surface and has an uneven surface overlapping the first surface. The organic layer is disposed on the uneven surface of polysilicon layer and includes an organic semiconductor material.

Display apparatus and method of manufacturing the same

A pixel includes: a driving transistor including a semiconductor layer and a gate electrode; and a compensation transistor connected to the gate electrode and the semiconductor layer of the driving transistor, wherein the first thin-film transistor includes: a first sub-transistor including a first gate electrode receiving a first scan signal having a first voltage level during a period; and a second sub-transistor connected to the first sub-transistor in parallel and comprising a second gate electrode receiving a second scan signal having a second voltage level that is an inverted level of the first voltage level during the same period.

Pixel and display device comprising the same

A method of manufacturing a display apparatus includes forming a first photosensitive pattern and a second photosensitive pattern of different thicknesses on an active layer; forming a driving semiconductor layer and a compensation semiconductor layer using the first photosensitive pattern and the second photosensitive pattern as masks to etch the active layer; exposing an upper surface of the driving semiconductor layer by etching the first photosensitive pattern and forming a third photosensitive pattern by etching at least a portion of the second photosensitive pattern; forming a first insulating layer on the driving semiconductor layer and the third photosensitive pattern; exposing an upper surface of the compensation semiconductor layer by stripping the third photosensitive pattern; and forming a second insulating layer on the first insulating layer and the compensation semiconductor layer.

A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.

Pixel, display device, and method of driving display device

An organic light-emitting display apparatus includes an organic light-emitting diode, a driving transistor configured to control an amount of electric current flowing to the organic light-emitting diode from a power line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to first and second compensation gate electrodes of the compensation transistor, and a gate insulating layer between the compensation gate electrodes and a compensation active region of a compensation transistor. A layer structure of the gate insulating layer between the first compensation gate electrode and the compensation active region is different from a layer structure of the gate insulating layer between the second compensation gate electrode and the compensation active region.

Organic light-emitting display apparatus and method of manufacturing the same

A pixel includes: a capacitor connected between a first voltage line and a first node; a light emitting diode including a first electrode connected to a second node, and a second electrode connected to a second voltage line; a first transistor; a second transistor; a third transistor including a first electrode connected to the first node, a second electrode connected to the second node, and a gate electrode to receive a first scan signal; a fourth transistor including a first electrode connected to the first node, a second electrode connected to a third voltage line to receive a third voltage, and a gate electrode to receive a second scan signal; and a compensation transistor including a first electrode connected to the first node, a second electrode connected to a fourth voltage line to receive a compensation voltage, and a gate electrode to receive a compensation control voltage.

Pixel and display device

A pixel includes a first capacitor connected between a first electrode and a second electrode connected to a first node, a first transistor including a gate electrode connected to the first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor including a gate electrode that receives a data write gate signal, a first electrode that receives a data voltage, and a second electrode connected to the second node, a third transistor connected between the first node and the third node, a fourth transistor connected between the first node and an initialization voltage input terminal to which an initialization voltage is applied, an eighth transistor t connected to the third transistor and the fourth transistor, and an organic light emitting diode including an anode and a cathode receiving a second power supply voltage.

Pixel and organic light emitting diode display device

A display apparatus includes a first thin-film transistor including a semiconductor layer arranged on a substrate, a driving gate electrode arranged on the semiconductor layer, and a first electrode arranged between the substrate and the semiconductor layer, a second thin-film transistor transmitting a data signal received through a data line to the first thin-film transistor according to a first scan signal received through a first scan line, and a third thin-film transistor transmitting a first voltage to the first electrode according to a second scan signal received through a second scan line.

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Yongin-si, South Korea

Sangsub Kim