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Electric energy-saving device and method for display system

A power-saving method and display system technology, applied to static indicators, data processing power supplies, cathode ray tube indicators, etc., can solve problems such as limitations

Inactive Publication Date: 2004-07-28
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0030] However, as described above, in conventional devices, in order to save power in the display system, there is a problem that there is no way to save power by supplying voltage to the microcomputer at all times so that the power consumption is minimized in the off mode. limited

Method used

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  • Electric energy-saving device and method for display system
  • Electric energy-saving device and method for display system

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Embodiment Construction

[0048] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0049] Figure 3 to Figure 6 It is a block diagram and circuit for describing the first embodiment of the power saving device for a display system according to the present invention, wherein only components and parts different from the conventional device are described, and other same components and components are omitted in the description.

[0050] like image 3 As shown, reference numeral 200 denotes a third output part, and a capacitor C10 provided in an operating voltage source part 210 has a large capacitance different from the conventional capacitor C4.

[0051] Reference numeral 300 denotes a microcomputer, and reference numeral 400 denotes a power control unit.

[0052] The principle of the block diagram of the present invention will be described in detail below with reference to FIGS. 4 to 6 .

[0053] As shown in FIG. 4 , the power control ...

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Abstract

The present invention relates to a device and method for saving electric energy in a display system. In the display system, when the line synchronization signal and the frame synchronization signal from the video card of the host computer are not input to the display system, the display system turns to the off mode Next, compared with the existing off-mode performance, by reducing the duty cycle of a PWM pulse with a large-capacity charge / discharge device, the total power consumption is reduced by about half within the range of display system operation. The invention provides a super power-saving mode of a display system.

Description

[0001] This application is a divisional case of Chinese patent application No.00126063.4 "A device and method for saving electric energy in a display system", and the earlier filing date of the original application is August 31, 1999. technical field [0002] The present invention relates to a power supply device for a display system, and more particularly to a device and method for saving power in a display system, in which the display system is reduced by using a large-capacity charge / discharge device when the display system is turned off. An on-duty time period of a PWM pulse reduces the total power consumption within the working range of the display system. Background technique [0003] Most display systems that have appeared on the market in recent years are equipped with power saving modes. According to the input or non-input of the line synchronous signal and the frame synchronous signal from the video card installed in the host computer, the power saving mode enters ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32G09G1/00
CPCG09G1/005G09G2330/021G06F1/32
Inventor 康虎雄
Owner SAMSUNG ELECTRONICS CO LTD