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Pixel driving circuit and mobile terminal

A technology of pixel drive circuit and drive unit, which is applied to instruments, static indicators, etc., can solve the problem that the pixel drive circuit cannot realize display control, etc., and achieve the effect of reducing the change of current

Inactive Publication Date: 2021-11-19
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a pixel driving circuit and a mobile terminal, which effectively solves the problem that the pixel driving circuit cannot realize display control under high grayscale

Method used

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  • Pixel driving circuit and mobile terminal
  • Pixel driving circuit and mobile terminal
  • Pixel driving circuit and mobile terminal

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0031] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the pre...

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Abstract

The invention provides a pixel driving circuit and a mobile terminal, and the pixel driving circuit comprises a switch module which is used for receiving a data signal on a data line according to a scanning signal on a scanning line, a storage module which is electrically connected with the switch module and is used for being charged by the data signal, and a driving light-emitting module. The driving light-emitting module comprises a driving unit, a light-emitting unit and a voltage dividing unit which are connected in series, is provided with a power supply voltage access port and a grounding port and is used for being driven by a data signal to emit light, and the voltage dividing unit is connected between the driving unit and the grounding port in series. According to the pixel driving circuit provided by the invention, the driving unit drives the light emitting unit to emit light according to the data signal under the condition that the voltage is divided by the voltage dividing unit, so that the change of current in the light emitting unit caused by the change of the data signal received by the driving unit is reduced; and therefore, the pixel driving circuit can realize display control under a high gray scale.

Description

technical field [0001] The present invention relates to the technical field of display panels, in particular to a pixel driving circuit and a mobile terminal. Background technique [0002] Compared with traditional backlight, Mini-LED backlight has excellent contrast. The current driving architecture of Mini-LED display panels is mainly based on 2T1C, while Light-Emitting Diode (LED) is a current-driven device, and the backplane signal of the display panel under the active matrix driving technology is voltage-controlled, so , under this technology, the stability requirements for thin film transistor (Thin Film Transistor, TFT) devices are very high, especially the stability and uniformity of the driving thin film transistor used to drive light emitting diodes will directly affect the light emission of light emitting diodes brightness. [0003] Under the existing design, metal-oxide-semiconductor field-effect transistors (Metal-Oxide-Semiconductor Field-Effect Transistor, M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/30G09G3/32
CPCG09G3/3406G09G3/30G09G3/32G09G3/3233G09G3/2007G09G2300/0842G09G2320/0233
Inventor 胡道兵
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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