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US 2026/0229178 A1Published application
Subpixel Circuit and Display Device
AssigneeLG Display Co., Ltd.
InventorsSujin Jeon, TaeKyeong Lee
Life of this patent
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Abstract
Embodiments of the present disclosure relate to a subpixel circuit and a display device that includes the subpixel circuit configured to more accurately sample the threshold voltage of a driving transistor. This is achieved by supplying a first reference voltage to an upper gate node of the driving transistor during a sampling period in a non-emission period.
Claims17
A display device, comprising:
- a display panel where a plurality of subpixels, a plurality of gate lines, and a plurality of data lines are disposed, each of the plurality of subpixels including a driving transistor and a first capacitor connected to a lower gate node of the driving transistor;
- a gate driving circuit configured to drive the plurality of gate lines;
- and
- a data driving circuit configured to supply a data voltage to the plurality of data lines,
- wherein each of the plurality of subpixels is configured to supply a first reference voltage to an upper gate node of the driving transistor during a sampling period in a non-emission period.
2 more elements
A subpixel circuit, comprising:
- a driving transistor;
- a first capacitor having a first side and a second side, the first side connected to a lower gate node of the driving transistor, and the second side connected to a second reference voltage line supplying a second reference voltage or a high-potential voltage line supplying a high-potential voltage;
- a first transistor disposed between a first reference voltage line supplying a first reference voltage and an upper gate node of the driving transistor, the first reference voltage having a voltage level lower than the second reference voltage;
- a second transistor disposed between the upper gate node of the driving transistor and a data line supplying a data voltage;
- and
- a third transistor disposed between a first node of the driving transistor and the lower gate node of the driving transistor.
3 more elements
Dependencies are inferred from the claim text.