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A backlight driving circuit and a display device

A driving circuit and backlight technology, which is applied in the display field, can solve problems such as backlight failure to start normally, excessive instantaneous power, etc., and achieve the effect of solving the problem of failure to start normally

Active Publication Date: 2019-01-04
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, an embodiment of the present invention provides a backlight driving circuit and a display device to solve the problem in the prior art that the backlight cannot be started normally due to excessive instantaneous power.

Method used

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  • A backlight driving circuit and a display device
  • A backlight driving circuit and a display device
  • A backlight driving circuit and a display device

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Embodiment Construction

[0037] The specific implementation manners of the backlight source driving circuit and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments described in this specification are only some of the embodiments of the present invention, not all of them; and in the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other; in addition, Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] A backlight driving circuit provided by an embodiment of the present invention, such as figure 1 As shown, it includes: a voltage doubler module 101 and an output buffer module 102;

[0039] Wherein, the voltage doubler module 101 is ...

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Abstract

The invention discloses a backlight driving circuit and a display device, comprising a voltage doubling module and an output buffer module, wherein, a voltage doubling module is used for amplifying the power supply voltage and outputting the amplified power supply voltage to an output buffer module. The output buffer module is used for regulating the received amplified power supply voltage. By adding an output buffer module in the backlight driving circuit, the voltage stabilization treatment of the amplified power supply voltage is realized, so that the backlight driving circuit can output the backlight stably, thus solving the problem that the instantaneous power is too large to enable the backlight to start normally.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight source driving circuit and a display device. Background technique [0002] Instantaneous power, also known as peak power, refers to the maximum amount of power that the power supply can provide to electrical appliances in an instant. There is a certain relationship between instantaneous power and rated power, both of which represent the maximum power of the power supply. From experience, the instantaneous power is generally 1.3 times to 1.6 times the rated power. Usually the instantaneous power is not the main measurement parameter, because the power supply cannot work in such a state for a long time, otherwise it will cause damage to the power supply. The reason for this parameter is that in some special cases, for example, the power of some devices at the moment of startup far exceeds the power of normal operation, that is, a large power needs to be provided in a...

Claims

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Application Information

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IPC IPC(8): G09G3/34H05B33/08H05B44/00
CPCG09G3/3406H05B45/00
Inventor 林琳郭子强孙剑
Owner BOE TECH GRP CO LTD
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