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Power supply device and display device

A technology of power supply device and display device, which is applied in the direction of circuit device, emergency protection circuit device, emergency protection device with automatic disconnection, etc., which can solve problems such as abnormal operation of power supply unit, and achieve the effect of avoiding abnormality

Active Publication Date: 2021-01-05
HKC CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a power supply device and a display device to solve the problem that the current supplied by the power supply unit to the drive unit may have a recirculation current back to the power supply unit at the moment of starting up, causing the power supply unit to operate abnormally

Method used

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  • Power supply device and display device
  • Power supply device and display device
  • Power supply device and display device

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Embodiment Construction

[0031] 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 some, but not all, embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred ...

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PUM

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Abstract

The invention discloses a power supply device and a display device. The power supply device includes a drive unit, a power supply unit, an electronic switch unit and a voltage dividing unit. The power supply unit is electrically connected to the drive unit. The electronic switch unit has an input terminal, a control terminal and an output terminal, the input terminal is electrically connected to the power supply unit, and the output terminal is electrically connected to the drive unit. The voltage dividing unit is electrically connected to the control terminal, one end of the voltage dividing unit is electrically connected between the power supply unit and the driving unit, and the other end of the voltage dividing unit is electrically connected to the ground terminal.

Description

technical field [0001] The present invention relates to a power supply device and a display device, in particular to a power supply device and a display device with a protection module that prevents the current of a drive unit from being fed back to a power supply unit during startup. Background technique [0002] Currently, a liquid crystal display (LCD) panel uses a stable voltage driving unit in a half-voltage mode to reduce power consumption of the driving unit. Wherein, the power supply unit generates the first voltage and the second voltage to the driving unit. At the moment of starting up, the first voltage of the power supply unit will be given to the drive unit first, and then the second voltage of the power supply unit will be given to the drive unit, but because the drive unit is not in normal working condition, at this time, the first voltage of the power supply unit Once the voltage is supplied to the driving unit, there may be a current flowing back to the pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/3696G09G2330/00G09G2330/026G09G2330/04G09G3/20H02H3/18G02F1/13452G09G2330/02H02H11/007
Inventor 扶伟
Owner HKC CORP LTD