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Display panel, light-emitting control circuit of display panel, driving method and display device

A light-emitting control circuit and light-emitting control technology, which are applied in the fields of display devices, driving methods, display panels and light-emitting control circuits thereof, can solve the problems of short lifespan of light-emitting units and large luminance deviation of light-emitting units, and achieve improved lifespan and increased driving current, the effect of reducing threshold voltage drift

Active Publication Date: 2019-04-12
BOE TECH GRP CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present application provides a display panel, its light-emitting control circuit, a driving method, and a display device, which can solve the problems in the related art that the light-emitting units with low luminous efficiency have a short service life and the light-emitting units with high luminous efficiency have large brightness deviations. question

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  • Display panel, light-emitting control circuit of display panel, driving method and display device
  • Display panel, light-emitting control circuit of display panel, driving method and display device
  • Display panel, light-emitting control circuit of display panel, driving method and display device

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Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] figure 1 It is a schematic structural diagram of a display panel provided by an embodiment of the present invention. refer to figure 1It can be seen that the display panel may include a plurality of sub-pixels 01 arranged in an array, a light emission control circuit 02 , a source driving circuit 03 and a gate driving circuit 04 . The plurality of sub-pixels 01 are located in the display area of ​​the display panel, and the light emission control circuit 02 , the source drive circuit 03 and the gate drive circuit 04 are all located in the peripheral area around the display area. Wherein, the light emission control circuit 02 may also be called an emission (emission, EM) circuit. The source driving circuit 03 may be an integra...

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Abstract

The invention discloses a display panel, a light-emitting control circuit of the display panel, a driving method and a display device, and relates to the technical field of display. The light-emittingcontrol circuit comprises a plurality of light-emitting control circuit sets; and each light-emitting control circuit set comprises at least two light-emitting control sub-circuits. The at least twolight-emitting control circuits can be connected with sub-pixels in the same row, and the colors of the sub-pixels connected with any two light-emitting control sub-circuits are different. In the way,different light-emitting control sub-circuits can be used for providing light-emitting control signals with different duty ratios for the sub-pixels with different colors, and light-emitting durations of light-emitting units in the sub-pixels with the different colors in a display process of a frame of image can be adjusted, so that voltages of data signals output for the sub-pixels with the different colors by a source driving circuit can be adjusted on the premise that the brightness is not changed, the service life of the light-emitting unit with relatively low light-emitting efficiency isprolonged, and the brightness deviation of the light-emitting unit with relatively high light-emitting efficiency, caused by threshold voltage drift is reduced.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel, a light emitting control circuit, a driving method, and a display device thereof. Background technique [0002] The display panel includes a plurality of pixels arranged in an array, and each pixel may include multiple sub-pixels of different colors. Each sub-pixel includes a pixel circuit and a light emitting unit. A light emission control circuit is usually provided on the display panel, and the light emission control circuit is connected to the light emission control terminal of the pixel circuit in each sub-pixel. The light-emitting control circuit can output a light-emitting control signal to the light-emitting control terminal of the pixel circuit, and the pixel circuit can output a driving current to the light-emitting unit under the control of the light-emitting control signal, so as to drive the light-emitting unit to emit light. Wherein, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/2074G09G3/3275G09G2300/0452G09G3/3283G09G2300/0876
Inventor 刘利宾
Owner BOE TECH GRP CO LTD
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