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Pixel driving circuit, display panel and driving method

A technology of pixel drive circuit and drive module, applied in static indicators, instruments, etc., can solve problems such as display chromaticity difference

Active Publication Date: 2020-05-12
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a pixel driving circuit, a display panel and a driving method to solve the problem that the display chromaticity of light-emitting elements of the same color is different under different display brightnesses

Method used

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  • Pixel driving circuit, display panel and driving method
  • Pixel driving circuit, display panel and driving method
  • Pixel driving circuit, display panel and driving method

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Embodiment Construction

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0046] figure 1 A schematic structural diagram of a pixel driving circuit provided for the implementation of the present invention. refer to figure 1, the pixel driving circuit includes: a first initialization module 10 , a first threshold compensation module 20 , a first data writing module 30 , a first light emission control module 40 and a light emission adjustment module 50 .

[0047] The first initialization module 10 includes a first initialization signal terminal ref1 , a first initialization control term...

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Abstract

The invention discloses a pixel driving circuit, a display panel and a driving method. The pixel driving circuit comprises a first initialization module, a first threshold compensation module, a firstdata writing module, a first light-emitting control module and a light-emitting adjustment module. The first initialization module comprises a first initialization signal end, a first initializationcontrol end and a first scanning signal end and is electrically connected with a first node and a second node. The first threshold compensation module comprises a first power supply signal end and iselectrically connected with the first scanning signal end, the first node and a third node. The first data writing module comprises a first data signal end, a second scanning signal end and a light-emitting duration control signal end and is electrically connected with the second node. A first light-emitting control module comprises a first light-emitting control signal end and is electrically connected with the third node and a fourth node. The light-emitting adjustment module comprises a second light-emitting control signal end, a third scanning signal end, a second data signal end and an output end. The problem that the display chromaticity of light-emitting elements of the same color is different under different display brightness is solved.

Description

technical field [0001] The present invention relates to display technology, in particular to a pixel driving circuit, a display panel and a driving method. Background technique [0002] Current-driven display panels, such as OLED display panels and LED display panels, have many advantages such as full solid state, wide viewing angle, and fast response, and have great application prospects in the display field. [0003] Each pixel unit of the current-driven display panel includes a pixel driving circuit and a light-emitting element; the light-emitting element is a current-driven device, and the pixel driving circuit provides a driving current for the light-emitting element, that is, the pixel driving circuit controls the light-emitting element by controlling the magnitude of the driving current. of luminous brightness. However, when driving light-emitting elements of the same color, different driving currents may cause differences in luminous chromaticity of different light-...

Claims

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Application Information

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IPC IPC(8): G09G3/32G09G3/3208G09G3/3233G09G3/3266
CPCG09G3/32G09G3/3208G09G3/3233G09G3/3266G09G2320/0666G09G2300/0852G09G2300/0819G09G2310/0262G09G2310/0251G09G2310/066G09G3/3225G09G2320/0271G09G2320/0626
Inventor 赖青俊朱绎桦
Owner XIAMEN TIANMA MICRO ELECTRONICS
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