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

A pixel driving circuit and technology for driving transistors, applied in the fields of display panels and display devices, driving methods, and pixel driving circuits, can solve problems such as insufficient reset time, affecting display effects, and residual charges, so as to achieve effective use of resources and improve display effects Effect

Pending Publication Date: 2020-02-11
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the internal load of the mobile phone is too large, and the reset time of the display panel is insufficient at a high refresh rate, and there will be charge remaining on the anode of the electroluminescent device OLED, causing the sub-pixels to steal light at low gray levels, resulting in display The panel is not dark enough in the working phase of the dark state, which affects the display effect

Method used

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

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Embodiment Construction

[0043] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0044] It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

[0045] Such as figure 1 As shown, a pixel driving circuit provided by an embodiment of the present invention includes: a driving transistor T2, a first storage capacitor C1, a second storage capacitor C2, a first initialization module 11, and a light emission control module 12, wherein:

[0046] The gate of t...

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Abstract

The invention discloses a pixel driving circuit, a driving method, a display panel and a display device. The pixel driving circuit comprises a driving transistor, a grid electrode of the driving transistor is electrically connected with a first electrode of a first storage capacitor, and the first electrode and a second electrode are electrically connected with a light-emitting control module; thelight-emitting control module is connected with a light-emitting control signal and a first power supply voltage, and under the control of the light-emitting control signal, the anode of the electroluminescent device is connected with the first power supply voltage, and the driving transistor is enabled to be in a saturated state; the first electrode of the second storage capacitor is electrically connected with the anode of the electroluminescent device, the second electrode of the second storage capacitor is electrically connected with the cathode of the electroluminescent device, and the cathode of the electroluminescent device is electrically connected with the second power supply voltage; and a first initialization module is connected with an initialization signal and an initialization voltage, and initializes the anode potential of the electroluminescent device under the control of the initialization signal, and the effective duration of the initialization signal is greater thanthe discharge duration of the second storage capacitor.

Description

Technical field [0001] This application generally relates to the field of display technology, and in particular to a pixel driving circuit, a driving method, a display panel, and a display device. Background technique [0002] Nowadays, gaming phones have gradually become an important entertainment and leisure way for young people, and gaming phones require a higher refresh rate on their display panels. As the refresh frequency increases, the charging time and reset time of the display panel will decrease. [0003] OLED (Organic Light-Emitting Diode) display panels have the advantages of wide color gamut, high contrast, energy saving, and foldability, and are widely used in mobile phone screens. The working state of the gate driver on the array substrate (GateDriver On Array, GOA for short) circuit has a very important influence on the display quality of the display panel. [0004] The GOA drive circuit uses the array substrate manufacturing process of the display device to fabrica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225
Inventor 唐硕贺能程金辉
Owner BOE TECH GRP CO LTD
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