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Controller for power supply of display

A power control device and display technology, which is applied to electric light sources, lighting devices, static indicators, etc., can solve the problems of reducing productivity and workability, and achieve the effect of saving power consumption

Inactive Publication Date: 2006-04-12
NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will be the main cause of lower productivity and workability

Method used

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  • Controller for power supply of display
  • Controller for power supply of display

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Embodiment Construction

[0040] Next, the structure and operation of the display power control device of the present invention having the above-mentioned structure will be described in detail with reference to the accompanying drawings and embodiments.

[0041] figure 2 It is a circuit diagram of an embodiment of a display power control device according to the present invention.

[0042] like figure 2 As shown, the display power supply control device according to the present invention is made up of the following parts: a transformer 21 for supplying power to the machine; for making the second power supply voltage (80V) filter 22 output from the above-mentioned transformer 21; Or cut off the output voltage conversion device 23 of the second power supply voltage output through the above-mentioned first filter device 22; for the second filter device 24 for filtering the second power supply voltage output from the above-mentioned output voltage conversion device 23; The third filter device 25 for filt...

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Abstract

A power supply control device of image display consists of microcomputer for identifying DPM mode and for outputting power supply control signal, power supply transformer for generating the first power voltage and the second power voltage, the first changeover unit for switching on or off the first power voltage, the second changeover unit for switching on or off the first changeover unit and for inputting power supply control signal, the third changeover unit for switching on or off the second power voltage and the fourth changeover unit for switching on or off the third changeover unit according to whether there is output from the first changeover unit or not.

Description

technical field [0001] The present invention relates to a power supply control device of an image display device. Specifically, it relates to a display power control device that satisfies the required power consumption saving conditions by cutting off the B+ power supplied to video equipment in DPM (Display Power Management) mode. Background technique [0002] For a common display, the power consumption of a personal computer (PC) accounts for about 50% to 80% of all power consumption. Most of the energy consumed by this display is emitted through visible light emission from the screen fluorescent screen, heat consumption, electromagnetic radiation, high-energy radiation, and audio energy consumption. Among the energy consumed in this way, only the energy consumed by the fluorescent screen to emit light is useful for displaying image information. Simultaneously, for the user, only when watching the above-mentioned image, the image display can play its due useful function. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08G09G3/00H05B44/00
CPCY02B20/346Y02B20/30
Inventor 金柱万
Owner NANJING LG TONGCHUANG COLOR DISPLAYS SYST CO LTD