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US 11,900,861 B2Granted
Gate driver and display device comprising same
AssigneeLG Display Co., Ltd.
InventorsJinYeong Kim, SeongHwan Ju, HyeonHo Son
Life of this patent
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Abstract
According to an aspect of the present disclosure, there is provided a display device including a display panel where a plurality of unit pixels are disposed, a gate driver disposed on an upper surface of the display panel and integrated in the plurality of unit pixels. Each of the plurality of unit pixels includes a main pixel and a redundancy pixel, and the gate driver supplies a gate voltage to the main pixel and the redundancy pixel. even if the main pixel becomes defective, the redundancy pixel can emit light instead of the main pixel, so that the reliability of the display device is improved.
Claims17
A display device comprising:
- a display panel where a plurality of unit pixels are disposed;
- and
- a gate driver disposed on an upper surface of the display panel and integrated in each of the plurality of unit pixels,
- wherein each of the plurality of unit pixels is driven independently and comprises a main pixel and a redundancy pixel which emit a same color,
- wherein the gate driver supplies a first scan signal and a second scan signal to the main pixel and the redundancy pixel,
- wherein an output timing of the first scan signal supplied to the main pixel is same as an output timing of the first scan signal supplied to the redundancy pixel,
- wherein an output timing of the second scan signal supplied to the main pixel is different from an output timing of the second scan signal supplied to the redundancy pixel,
- wherein the gate driver comprises a plurality of stages,
- wherein an nth stage among the plurality of stages comprises:
- a scan driving circuit for outputting the first scan signal, the second scan signal and a carry signal;
- and
- an emission driving circuit for outputting an emission control signal, wherein n is a natural number, and
- wherein the scan driving circuit of the nth stage applies the carry signal to a scan driving circuit and an emission driving circuit of an (n+1)th stage, and applies the second scan signal to a scan driving circuit and an emission driving circuit of an (n−1)th stage.
10 more elements
A display panel, comprising:
- a plurality of unit pixels;
- and
- a gate driver integrated in each of the plurality of unit pixels,
- wherein each of the plurality of unit pixels comprises a main pixel and a redundancy pixel,
- wherein the gate driver supplies a first scan signal and a second scan signal to the main pixel and the redundancy pixel,
- wherein an output timing of the first scan signal supplied to the main pixel is same as an output timing of the first scan signal supplied to the redundancy pixel,
- wherein an output timing of the second scan signal supplied to the main pixel is different from an output timing of the second scan signal supplied to the redundancy pixel,
- wherein the gate driver comprises a plurality of stages,
- wherein an nth stage among the plurality of stages comprises:
- a scan driving circuit for outputting the first scan signal, the second scan signal and a carry signal;
- and
- an emission driving circuit for outputting an emission control signal, wherein n is a natural number, and
- wherein the scan driving circuit of the nth stage applies the carry signal to a scan driving circuit and an emission driving circuit of an (n−1)th stage, and applies the carry signal to a scan driving circuit and an emission driving circuit of an (n+1)th stage.
10 more elements
A pixel structure, comprising:
- a main pixel and a redundancy pixel;
- and
- a plurality of stages of a gate driver,
- wherein each of the plurality of stages the gate driver supplies a first scan signal and a second scan signal to the main pixel and the redundancy pixel,
- wherein an output timing of the first scan signal supplied to the main pixel is same as an output timing of the first scan signal supplied to the redundancy pixel,
- wherein an output timing of the second scan signal supplied to the main pixel is different from an output timing of the second scan signal supplied to the redundancy pixel,
- wherein an nth stage among the plurality of stages comprises:
- a scan driving circuit for outputting the first scan signal, the second scan signal and a carry signal;
- and
- an emission driving circuit for outputting an emission control signal, wherein n is a natural number,
- wherein each of the main pixel and the redundancy comprises a first input terminal, a second input terminal and a third input terminal,
- wherein the scan driving circuit of the nth stage applies the first scan signal to a first input terminal of an nth main pixel and a second input terminal of an nth redundancy pixel, and applies the second scan signal to a first input terminal of an nth redundancy pixel and a second input terminal of an (n+1)th main pixel, and
- wherein the emission driving circuit of the nth stage applies the emission control signal to a third input terminal of the nth main pixel and a third input terminal of the nth redundancy pixel.
10 more elements
Dependencies are inferred from the claim text.