Power supply circuit and display device

A technology of power supply circuit and display device, which is applied in the direction of measuring device, output power conversion device, electrical components, etc., can solve problems such as noise and interference, malfunction of drive module, time and risk cannot be guaranteed, and avoid defects Influence, reduce noise and interference effect

Pending Publication Date: 2019-11-08
KUSN INFOVISION OPTOELECTRONICS
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Noise and interference are not allowed when the notebook computer is in use, but it is found in the experiment that when the system motherboard is in a certain voltage range (such as 2.0V ~ 2.2V), there will be abnormal operation, and its output There is a certain voltage fluctuation in the power supply voltage to the PCB board

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power supply circuit and display device
  • Power supply circuit and display device
  • Power supply circuit and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0026] Hereinafter, the present invention will be described in detail with reference t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a power supply circuit, which comprises a detection unit for providing a plurality of control signals according to the amplitude of an input power supply voltage; a first path,and a second path, wherein when the amplitude of the input power supply voltage is smaller than a second reference value, the first path and the second path are disconnected, when the amplitude of the input power supply voltage is larger than or equal to the first reference value, the first path is connected, the second path is disconnected, and when the amplitude of the input power supply voltage is larger than or equal to the second reference value and smaller than the first reference value, the second path is connected, and the first path is disconnected. The invention further discloses adisplay device. Different power supplies can be used for supplying power, proper working voltage of the driving module is guaranteed, noise and interference are reduced within a certain voltage range,and adverse effects on product quality are avoided.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a power supply circuit and a display device. Background technique [0002] At present, the products of display devices, especially the driver modules used in notebook computers (NoteBook), have strict requirements on the accuracy of the power supply voltage. These driver chips can only work normally under the appropriate power supply voltage, and in some specific Drive abnormalities will occur within the power supply voltage range, which will affect the performance of the display device. [0003] figure 1 shows a structural block diagram of an existing display device, such as figure 1 As shown, an existing display device such as a notebook computer system includes a display panel and a system motherboard connected to the display panel. Corresponding drive modules and functional modules are arranged on the PCB of the display panel, and the system mainboard is connected to the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F1/26G09G3/20H02M3/158
CPCG06F1/26G09G3/20H02M3/158
Inventor 王有盛马曼曼窦彦坤
Owner KUSN INFOVISION OPTOELECTRONICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap