Light emission driving circuit, scan driving circuit and display device including same
AssigneeSamsung Display Co., Ltd.
InventorsSeongheon Cho, Joon-Chul Goh, Soon-Dong Kim, Bonghyun You
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Abstract
A light emission driving circuit includes a driving circuit configured to output a light emission driving signal to a first output terminal and output a switching signal to a first node in response to clock signals and a first carry signal, and a first masking circuit configured to output a second carry signal to a second output terminal in response to a masking clock signal, the light emission driving signal, and the first switching signal. The masking clock signal is a signal which is maintained at a first level during a normal mode and periodically changes during a low power mode.
Claims15
A driving stage circuit, comprising:
- a driving circuit configured to output a driving signal to a first output terminal and output a switching signal to a first node in response to a first clock signal, a second clock signal and a first carry signal;
- and
- a masking circuit configured to receive a masking clock signal different from the first clock signal and the second clock signal and output a second carry signal corresponding to the masking clock signal to a second output terminal in response to, the driving signal, and the switching signal,
- wherein the masking clock signal is a signal which is maintained at a first level during a first mode and periodically changes during a second mode.
A display device, comprising:
- a display panel including a plurality of driving lines and a plurality of pixels respectively connected to one of the plurality of driving lines;
- a driving part configured to drive the plurality of driving lines;
- and
- a driving controller configured to receive an image signal and a control signal and control the driving part, wherein:
- the driving controller divides the display panel into a first display region and a second display region and outputs a masking clock signal indicating a start position of the second display region, a first clock signal, a second clock signal and a first carry signal;
- and
- the driving part includes a plurality of driving stage circuits, each configured to drive a corresponding driving line among the plurality of driving lines, wherein each of the plurality of driving stage circuits includes:
- a driving circuit configured to output a driving signal to a first output terminal and output a switching signal to a first node in response to the first clock signal, the second clock signal and the first carry signal;
- and
- a masking circuit configured to receive the masking clock signal different from the first clock signal and the second clock signal and output a second carry signal corresponding to the masking clock signal to a second output terminal in response to the driving signal and the switching signal.
Dependencies are inferred from the claim text.