Light-emission control signal generating device and display device

A light emission control signal generation device, comprising:

• a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame;
• and
• a plurality of light emission control signal generation circuits, wherein:
• the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual ones of the blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals;
• there is no physical connection between an output end of one of the plurality of blocks and an input end of another one of the plurality of blocks;
• in response to the indication signal indicating that a frame corresponding to one of the plurality of blocks is the dynamic frame, the one of the plurality of blocks is input with a modulated driving signal;
• in response to the indication signal indicating that a frame corresponding to one of the plurality of blocks is the static frame, the one of the plurality of blocks is input with a normal driving signal;
• and
• a light emission enable portion of the modulated driving signal is shorter than a light emission enable portion of the normal driving signal.

A display panel, comprising:

• a pixel array formed by a plurality of rows of pixel units and light emission control signal generation circuits corresponding to individual rows of pixel units, wherein:
• the pixel array comprises a plurality of partitions, each partition comprising a plurality of pixel unit groups, each pixel unit group comprising a part of pixel units in a row of pixel units;
• each pixel unit group comprises a first control switching transistor and a second control switching transistor;
• a gate of the first control switching transistor is input with a first control signal, a source of the first control switching transistor is input with a light emission control signal, and a drain of the first control switching transistor is connected to pixel units in each pixel unit group;
• a gate of the second control switching transistor is input with a second control signal, a source of the second control switching transistor is connected to the pixel units in each pixel unit group, and a drain of the second control switching transistor is input with a modulated light emission control signal;
• and
• a duty ratio of the modulated light emission control signal is smaller than a duty ratio of the light emission control signal.

A display device, comprising:

• a light emission control signal generation device, wherein light emission control signal generation device comprises:
• a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame;
• and
• a plurality of light emission control signal generation circuits, wherein:
• the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual ones of the blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals;
• two adjacent blocks are connected through a switching circuit;
• the switching circuit is configured to input a first light emission enable signal or a second light emission enable signal to one of the two adjacent blocks based on the indication signal;
• and
• a light emission enable portion of the second light emission enable signal is shorter than a light emission enable portion of the first light emission enable signal.

A display device, comprising:

• a light emission control signal generation device, wherein light emission control signal generation device comprises:
• a state detection circuit configured to detect whether a current frame is a static frame or a dynamic frame and output an indication signal indicating the static frame or the dynamic frame;
• and
• a plurality of light emission control signal generation circuits, wherein:
• the plurality of light emission control signal generation circuits are divided into a plurality of blocks, and individual blocks are input with different light emission enable signals based on the indication signal to generate light emission control signals,
• there is no physical connection between an output end of one of the plurality of blocks and an input end of another one of the plurality of blocks;
• if the indication signal indicates that a frame corresponding to one of the plurality of blocks is the dynamic frame, the one of the plurality of blocks is input with a modulated driving signal;
• if the indication signal indicates that a frame corresponding to one of the plurality of blocks is the static frame, the one of the plurality of blocks is input with a normal driving signal;
• and
• a light emission enable portion of the modulated driving signal is shorter than a light emission enable portion of the normal driving signal.