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US 11,600,228 B2Granted
Display device
AssigneeSamsung Display Co., Ltd.
InventorsJi Su Na, Yang Wan Kim, Jung Hun Yi, Min Woo Byun
Life of this patent
Estimating the term…
Abstract
A display device includes pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.
Claims23
A display device comprising:
- a plurality of pixels electrically connected to first scan lines, second scan lines, and emission lines;
- a first scan driver that applies first scan signals to the first scan lines;
- a second scan driver that applies second scan signals to the second scan lines;
- an emission control driver that applies emission signals to the emission lines;
- and
- a power supply that generates and outputs a first high voltage and a second high voltage, wherein
- the second scan driver receives the first high voltage, and
- the first scan driver and the emission control driver share the second high voltage.
5 more elements
A display device comprising:
- a sub-pixel electrically connected to a first scan line, a second scan line, an emission line, a data line, a first driving voltage line, and a first initialization voltage line, wherein
- the sub-pixel comprises:
- a light emitting element;
- a first transistor that applies a driving current to the light emitting element according to a voltage of a gate electrode;
- a second transistor that applies a data voltage of the data line to a first electrode of the first transistor according to a second scan signal of the second scan line;
- a third transistor that initializes the gate electrode of the first transistor to a first initialization voltage of the first initialization voltage line according to a first scan signal of the first scan line;
- and
- a fourth transistor that electrically connects the first driving voltage line and the first electrode of the first transistor according to an emission signal of the emission line,
- the second transistor is turned off during a period in which a first high voltage of the second scan signal is applied, and is turned on during a period in which a first low voltage of the second scan signal is applied,
- the third transistor is turned on during a period in which a second high voltage of the first scan signal is applied, and is turned off during a period in which a second low voltage of the first scan signal is applied, and
- the fourth transistor is turned off during a period in which a second high voltage of the emission signal is applied, and is turned on during a period in which the first low voltage of the emission signal is applied.
8 more elements
A display device comprising:
- a sub-pixel electrically connected to a first scan line, a second scan line, an emission line, a data line, a first driving voltage line, and a first initialization voltage line, wherein
- the sub-pixel comprises:
- a light emitting element;
- a first transistor that applies a driving current to the light emitting element according to a voltage of a gate electrode;
- a second transistor that applies a data voltage of the data line to a first electrode of the first transistor according to a second scan signal of the second scan line;
- a third transistor that initializes the gate electrode of the first transistor to a first initialization voltage of the first initialization voltage line according to a first scan signal of the first scan line;
- and
- a fourth transistor that electrically connects the first driving voltage line and the first electrode of the first transistor according to an emission signal of the emission line,
- the second transistor is turned off during a period in which a first high voltage of the second scan signal is applied,
- the third transistor is turned on during a period in which a second high voltage of the first scan signal is applied, and
- the fourth transistor is turned on during a period in which the second high voltage of the emission signal is applied.
8 more elements
A display device comprising:
- a sub-pixel electrically connected to a first scan line, an emission line, a data line, and a first driving voltage line, wherein
- the sub-pixel comprises:
- a light emitting element;
- a first transistor that applies a driving current to the light emitting element according to a voltage of a gate electrode;
- and
- a second transistor that electrically connects the first driving voltage line and a first electrode of the first transistor according to an emission signal of the emission line,
- during a first period in which a data voltage of the data line fluctuates, the emission signal of the emission line fluctuates by a second voltage from a second high voltage, and
- during a second period in which a threshold voltage is sampled at the gate electrode of the first transistor, the emission signal is restored to the second high voltage.
5 more elements
Dependencies are inferred from the claim text.