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US 12,217,684 B2Granted
Display apparatus and driving method of pixel
AssigneeSamsung Display Co., Ltd.
InventorsJaehoon Lee, Jihyun Ka, Seokje Seong, Joosun Yoon
Life of this patent
Estimating the term…
Abstract
Provided are a pixel configured to receive a first initialization voltage during a first period between a writing period of a first scan period and a first emission period of a frame and to receive a second initialization voltage different from the first initialization voltage from a start time point of a second period before a second emission period of a second scan period subsequent to the first scan period, a display apparatus including the pixel, and a driving method of the display apparatus.
Claims20
A display apparatus comprising:
- a plurality of pixels, each of the plurality of pixels comprising:
- a light-emitting diode;
- a first transistor electrically connected to a driving voltage line and the light-emitting diode;
- a second transistor electrically connected to the first transistor and the light-emitting diode;
- and
- a third transistor electrically connected to the light-emitting diode and an initialization voltage line, wherein
- the pixel is configured to operate, during a frame, in a first scan period including a writing period for receiving a data signal and a first emission period for emitting light with luminance corresponding to the data signal and in a second scan period including a second emission period for maintaining the data signal and emitting light with luminance corresponding to the maintained data signal,
- a gate of the second transistor is configured to receive a first gate signal of a gate-on voltage during the second scan period,
- a gate of the third transistor is configured to receive a second gate signal of a gate-on voltage in a first period before the second emission period of the second scan period, and
- the initialization voltage line is configured to receive a first initialization voltage during the first scan period and to receive a second initialization voltage different from the first initialization voltage from a start time point of the first period of the second scan period.
7 more elements
A display apparatus comprising:
- a plurality of pixels, each of the plurality of pixels comprising:
- a light-emitting diode;
- a first transistor electrically connected to a driving voltage line and the light-emitting diode;
- a second transistor electrically connected to the first transistor and the light-emitting diode;
- and
- a third transistor electrically connected to the light-emitting diode and an initialization voltage line, wherein
- the pixel is configured to operate, during a frame, in a first scan period including a writing period for receiving a data signal and a first emission period for emitting light with luminance corresponding to the data signal and in a second scan period including a second emission period for maintaining the data signal and emitting light with luminance corresponding to the maintained data signal,
- a gate of the second transistor is configured to receive a first gate signal of a gate-on voltage during the second scan period, and
- the initialization voltage line is configured to receive a first initialization voltage until before the first emission period of the first scan period and receive a second initialization voltage different from the first initialization voltage during the first emission period of the first scan period and the second scan period.
6 more elements
A driving method of a display apparatus comprising a plurality of pixels, each of the plurality of pixels comprising:
- a light-emitting diode;
- a first transistor electrically connected to a driving voltage line and the light-emitting diode;
- a second transistor electrically connected to the first transistor and the light-emitting diode;
- and
- a third transistor electrically connected to the light-emitting diode and an initialization voltage line, wherein
- the pixel is configured to operate, during a frame, in a first scan period including a writing period for receiving a data signal and a first emission period for emitting light with luminance corresponding to the data signal and in a second scan period including a second emission period for maintaining the data signal and emitting light with luminance corresponding to the maintained data signal,
- in each pixel,
- receiving a first gate signal of a gate-on voltage to a gate of the second transistor and receiving a second gate signal of a gate-on voltage to a gate of the third transistor in a first period between the writing period and the first emission period of the first scan period,
- receiving another first gate signal of a gate-on voltage to the gate of the second transistor during the second scan period,
- receiving a second gate signal of a gate-on voltage to the gate of the third transistor in a second period before the second emission period in the second scan period, and
- receiving a first initialization voltage during the first period of the first scan period and receiving a second initialization voltage different from the first initialization voltage to the initialization voltage line from a start time point of at least the second period of the second scan period.
8 more elements
Dependencies are inferred from the claim text.