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Light-emitting device driving circuit, backlight module and display panel

A technology of light-emitting devices and driving circuits, which is applied in the fields of light-emitting device driving circuits, backlight modules and display panels, and can solve the problem of a small number of gray scales

Pending Publication Date: 2021-05-11
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of gray scales in the existing light-emitting device driving circuit is relatively small

Method used

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  • Light-emitting device driving circuit, backlight module and display panel
  • Light-emitting device driving circuit, backlight module and display panel
  • Light-emitting device driving circuit, backlight module and display panel

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Embodiment Construction

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0058] In addition, the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

[0059] It should be noted that, since the source and drain of the transistor used in this application...

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PUM

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Abstract

The invention discloses a light-emitting device driving circuit, a backlight module and a display panel. The light-emitting device driving circuit comprises a light-emitting device, a driving transistor, a data signal write-in module, a first power signal write-in module, a second power signal write-in module, a light-emitting control module and a storage module. According to the light-emitting device driving circuit, the backlight module and the display panel provided by the invention, black insertion is performed on the light-emitting device by setting the second power supply signal write-in module, and a pulse width equal-molecular field of light emitting of the light-emitting device is adjusted to be a non-equal-molecular field, so that various gray scale changes can be realized.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a light emitting device driving circuit, a backlight module and a display panel. Background technique [0002] Light-emitting devices such as mini light-emitting diodes, micro light-emitting diodes, and organic light-emitting diodes have the advantages of high brightness, high contrast, and high color gamut, and have been rapidly applied to new display fields. In the existing driving circuit of the light-emitting device, the threshold voltage of the driving transistor tends to shift under long-term current pressure, so that the brightness of the light-emitting device is attenuated, resulting in uneven display. [0003] In recent years, in order to solve the brightness attenuation of the light emitting device caused by the shift of the threshold voltage of the driving transistor, a large number of compensation circuits have appeared. For mini-LEDs and micro-LEDs, the v...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3208G09G3/3266
CPCG09G3/32G09G3/3208G09G3/3266G09G2320/0233Y02B20/30G09G3/3233G09G3/3406G09G2300/0819G09G2300/0842G09G2300/0861G09G2310/08G09G2320/0261G09G2320/045G09G2320/0626G09G2310/0262G09G2310/0251
Inventor 刘斌刘全胜
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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