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US 2021/0280130 A1Published application
Display device
AssigneeSamsung Display Co., Ltd.
InventorsSeongmin Wang, Yongho Yang, Jihye Kong, Jeongsoo Lee
Life of this patent
Estimating the term…
Abstract
A display device includes pixels, and each pixel is connected between a first electrode or a second electrode of a driving transistor and a bias line, includes a bias transistor configured to transfer a bias voltage applied from the bias line to the first electrode or the second electrode of the driving transistor during a bias period. Bias voltages applied to the pixels emitting light of different colors are different from each other.
Claims20
A display device including a plurality of pixels, comprising:
- each of the plurality of pixels, including:
- a light-emitting diode;
- a driving transistor including a gate electrode, a first electrode connected to a node, and a second electrode connected to the light-emitting diode, the driving transistor being configured to transfer a driving current to the light-emitting diode;
- a switching transistor connected between a data line and the node and configured to transfer a data signal applied to the data line to the node during a data write period;
- a compensation transistor connected between the gate electrode of the driving transistor and the second electrode of the driving transistor and configured to connect the gate electrode of the driving transistor to the second electrode of the driving transistor during a compensation period;
- and
- a bias transistor connected between at least one of the first electrode and the second electrode of the driving transistor and a bias line and configured to transfer a bias voltage applied from the bias line to the at least one of the first electrode and the second electrode of the driving transistor during a bias period,
- wherein a first bias voltage applied to a first pixel emitting light of a first color among the plurality of pixels is different from a second bias voltage applied to a second pixel emitting light of a second color among the plurality of pixels.
5 more elements
A display device including a plurality of pixels, comprising:
- each of the plurality of pixels, including:
- a light-emitting diode;
- a driving transistor including a gate electrode, a first electrode connected to a node, and a second electrode connected to the light-emitting diode, the driving transistor being configured to transfer a driving current to the light-emitting diode;
- a switching transistor connected between a data line and the node and configured to transfer a data signal applied to the data line to the node during a data write period;
- a compensation transistor connected between the gate electrode of the driving transistor and the second electrode of the driving transistor and configured to connect the gate electrode of the driving transistor to the second electrode of the driving transistor during a compensation period;
- and
- a bias transistor connected between at least one of the first electrode the second electrode of the driving transistor and a bias line and configured to transfer a bias voltage applied from the bias line to the at least one of the first electrode and the second electrode of the driving transistor during a bias period,
- wherein the bias transistor is turned on by an on-voltage of a bias control signal applied to a gate electrode of the bias transistor, and
- wherein a first on-voltage application time of a first bias control signal applied to a first pixel emitting light of a first color among the plurality of pixels is different from a second on-voltage application time of a second bias control signal applied to a second pixel emitting light of a second color among the plurality of pixels.
6 more elements
A display device including a plurality of pixels,
- wherein each of the plurality of pixels, including:
- a light-emitting diode;
- a driving transistor including a gate electrode, a first electrode connected to a node, and a second electrode connected to the light-emitting diode, the driving transistor being configured to transfer a driving current to the light-emitting diode;
- a switching transistor connected between a data line and the node and configured to transfer a data signal applied to the data line to the node during a data write period;
- a compensation transistor connected between the gate electrode and the second electrode of the driving transistor and configured to connect the gate electrode of the driving transistor to the second electrode of the driving transistor during a compensation period;
- and
- a second initialization transistor connected between the light-emitting diode and a second initialization voltage line and configured to transfer a second initialization voltage to a first electrode of the light-emitting diode, the second initialization voltage being applied from the second initialization voltage line,
- wherein a second initialization voltage applied to a first pixel emitting light of a first color among the plurality of pixels is different from a second initialization voltage applied to a second pixel emitting light of a second color among the plurality of pixels.
5 more elements
Dependencies are inferred from the claim text.