Scanline driver and display device including the same
AssigneeSamsung Display Co., Ltd.
InventorsHai-Jung In, Hae-Yeon Lee
Life of this patent
Estimating the term…
Abstract
A scanline driver includes a shift register circuit and an output buffer. The shift register circuit provides a register output signal and a plurality of signals based on a scan input signal and a plurality of clock signals. The shift register circuit is arranged at at least one horizontal side of a pixel circuit region and includes a plurality of unit pixel circuits connected to a scanline. The output buffer provides a scanline enable signal to the scanline based on the register output signal and the plurality of signals. The output buffer is arranged at at least one vertical side of the pixel circuit region in a pixel array.
Claims20
A scanline driver for a display device including a plurality of pixel rows, comprising:
- a shift register circuit to provide a register output signal and a plurality of signals based on a scan input signal and a plurality of clock signals, the shift register circuit at at least one horizontal side of a pixel circuit region in which one of the pixel rows is located, the one of the pixel rows connected to a scanline;
- and
- an output buffer to provide a scanline enable signal to the scanline based on the register output signal and the plurality of signals, the output buffer at at least one vertical side of the pixel circuit region in a pixel array, the output buffer located between adjacent ones of the pixel rows.
A scanline driver for a display device including a plurality of pixel rows, comprising:
- a shift register circuit to provide a register output signal and a plurality of signals based on a scan input signal and a plurality of clock signals, the shift register circuit at at least one horizontal side of a pixel circuit region in which one of the pixel rows is located, the one of the pixel rows connected to a scanline;
- and
- an output buffer to provide a scanline enable signal to the scanline based on the register output signal and the plurality of signals, the output buffer including:
- a capacitor circuit between the at least one horizontal side of the pixel circuit region and the shift register circuit, the capacitor circuit including a plurality of capacitors;
- and
- a transistor circuit at at least one vertical side of the pixel circuit region in a pixel array, the transistor circuit located between adjacent ones of the pixel rows, the transistor circuit including a plurality of transistors.
A display device, comprising:
- a plurality of scanline drivers to provide a scanline enable signal to a plurality of scanlines based on a scan input signal and a plurality of clock signals;
- and
- a pixel circuit including a plurality of pixel rows, each pixel row including a plurality of unit pixel circuits to drive organic light emitting diodes and connected at least one of the scanlines, each scanline driver including:
- a shift register circuit to provide a register output signal and a plurality of signals based on the scan input signal and the plurality of clock signals, the shift register circuit at at least one horizontal side of a pixel circuit region in which one of the pixel rows is located;
- and
- an output buffer to provide the scanline enable signal to the corresponding one of the scanlines based on the register output signal and the plurality of signals, the output buffer at at least one vertical side of the pixel circuit region in a pixel array, the output buffer located between adjacent ones of the pixel rows.
Dependencies are inferred from the claim text.