Lg Display Co., Ltd.

DaeSung Jung

SangMoo Song

Haksu Kim

DaeKyu Kim

Jeongho Kim

Hwanjoo Lee

JunHo Yeo

Daekyu Kim

MiSo Kim

Seongho Cho

YoungJoon Shin

Gayoung Lee

Kwanghyun Baek

JeongHo Kim

HwanJoo Lee

A pixel circuit includes a light emitting element having an anode, a driving transistor having a first electrode connected to a high potential driving voltage line, a second electrode connected to the light emitting element, the driving transistor controlling a magnitude of driving current supplied to the light emitting element in response to a voltage applied to a gate electrode, a first switching transistor connected between a data line and the gate electrode of the driving transistor and receiving a first scan signal through a gate electrode, a light emitting transistor connected between the driving transistor and the light emitting element and receiving an emission signal through a gate electrode, and an initialization transistor connected between an initialization voltage line and the anode and receiving an inverted emission signal through a gate electrode, the inverted emission signal having a phase opposite to a phase of the emission signal.

Pixel circuit and display device comprising same

A pixel circuit can include a capacitor connected between a first node and a second node, a first transistor connected between a data line and the first node, a driving transistor including a gate electrode connected to the second node, a first electrode connected to a first voltage supply line, and a second electrode connected to a third node, a second transistor connected between the second node and a fourth node, the fourth node being connected to a reference voltage supply line, a third transistor connected between the fourth node and a fifth node, and an emission element connected to the driving transistor and connected to the third transistor through the fifth node.

Pixel circuit optimizing a current flow and display apparatus comprising the pixel circuit

A display device includes a light-emitting element; a capacitor connected to and disposed between a first node and a second node; a first transistor including a first electrode connected to a reference voltage supply line and a second electrode connected to the first node, and supplying a reference voltage to the first node in response to a light-emission control signal of an n-th pixel row; a second transistor including a first electrode connected to the reference voltage supply line and a second electrode connected to the second node, and supplying the reference voltage to the second node in response to a first scan signal of an (n−1)-th pixel row; and a driving transistor including a gate electrode connected to the second node, a first electrode receiving a high-potential driving voltage, and a second electrode connected to a third node. Thus, for example, occurrence of a reference voltage related short-circuit in the light-emitting element of the display device is suppressed to prevent occurrence of defective image display in each pixel and to improve reliability thereof.

Pixel circuit and display device including the same

A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.

Display panel and display apparatus

According to an aspect of the present disclosure, a pixel circuit includes a first capacitor connected between a first node and a second node, a first transistor connected to the first node and supplied with a first scan signal, a driving transistor including a gate electrode connected to the second node, a first electrode connected to a first voltage supply line, and a second electrode connected to a third node, a second transistor connected between the second node and the third node and supplied with a second scan signal, a third transistor connected between the third node and a fourth node, a fourth transistor which is connected to the fourth node and is supplied with a second scan signal of a previous pixel row and a light emitting diode connected to the fourth transistor and the third transistor at the fourth node.

Pixel circuit and display apparatus comprising pixel circuit

The present disclosure relates to an organic light emitting display device and a device for driving the same. The present provides the organic light emitting display device that enables implementation of a narrow bezel and easy implementation of a circuit by simplifying a structure of an EM driver, and a device for driving the same.

Organic light emitting display device including EM driver with simplified structure and for driving the same

The present disclosure relates to an organic light emitting display and an apparatus for driving the same. According to the present aspects, a first light emitting transistor can be maintained to be in a turn-off state from an initial interval to a holding interval, whereby a short-circuit between data voltage and reference voltage, which occurs when the first light emitting transistor is turned on in the initial interval, can be prevented.

Organic light emitting display and apparatus for driving same

An organic light-emitting display device and a driving method thereof. A first pixel of the plurality of pixels is initialized in response to a first gate signal of the gate signals, receives a first data signal input thereto in response to a second gate signal generated after the first gate signal, and is controlled by the emission control signal to emit light in response to the first data signal. A second pixel of the plurality of pixels is initialized in response to the second gate signal, receives a second data signal input thereto in response to a third gate signal generated after the second gate signal, and is controlled by the emission control signal to emit light in response to the second data signal. The size of a non-display area is reduced.

Organic light-emitting display device and driving method thereof

A display apparatus includes a substrate having a display area defined in a non rectangular shape, and a non-display area surrounding the display area; an image display portion including a plurality of gate lines, a plurality of data lines and a plurality of pixels prepared on the display area; a display pad portion prepared at one side of the substrate; a plurality of data link lines for connecting the plurality of data lines to the display pad portion; and one or more dummy capacitors prepared in some data link lines among the plurality of data link lines.

Display apparatus

Disclosed is an electrophoretic display device and manufacturing method thereof, which prevent water from penetrating into an electrophoretic film. The electrophoretic display device comprises an electrophoretic display panel comprising a substrate with a thin film transistor formed thereon, and an electrophoretic film coupled to the substrate; a protective sheet coupled to the electrophoretic film; a circuit film coupled to the substrate to be disposed at an outer side of the electrophoretic film; a first sealant formed on the substrate, for sealing a gap between the electrophoretic film and the protective sheet and a gap between the electrophoretic film and the substrate; and a second sealant sealing a gap between the substrate and the circuit film.

Electrophoretic display device and manufacturing method thereof

Discussed is an electrophoresis display device. The electrophoresis display device includes a plurality of gate lines and data lines formed to intersect each other, a gate driving circuit supplying a scan pulse to the gate lines, a data driving circuit respectively supplying a plurality of data voltages to the data lines, a plurality of first ESD circuits respectively connected to one sides of the gate lines, a plurality of second ESD circuits respectively connected to the other sides of the gate lines, and a plurality of third ESD circuits respectively connected to the data lines. First terminals of the first ESD circuits are respectively connected to the gate lines, and second terminals of the first ESD circuits are connected to a gate low voltage (VGL) terminal of the gate driving circuit.

Growing community of inventors

Paju-si, South Korea

DaeSung Jung