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Display apparatus and power control method thereof

A display device and power control technology, applied in the direction of digital output to display devices, TVs, color TVs, etc., can solve the problems of increasing the standby power consumption and consumption of TMS receivers

Inactive Publication Date: 2007-07-11
SAMSUNG ELECTRONICS CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] However, since the display device of this related art can or cannot enter the power saving mode depending on whether a sync signal from the TMDS receiver is detected, it is necessary to supply a backup power to the TMDS receiver in order to detect the sync signal in the power saving mode.
In this case, the TMDS receiver consumes about 700mA, which increases the standby power consumption of the whole TMS receiver

Method used

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  • Display apparatus and power control method thereof
  • Display apparatus and power control method thereof
  • Display apparatus and power control method thereof

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Embodiment Construction

[0027] Reference will now be made in detail to the exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0028] FIG. 1 is a control block diagram of a display device according to an exemplary embodiment of the present invention.

[0029] Referring to FIG. 1 , a display device according to an exemplary embodiment of the present invention includes a TMDS receiving part 10 , a signal processing part 20 , a display part 30 , a power supply part 40 , a switch part 50 , a clock signal detecting part 60 and a controller 70 .

[0030] The TMDS receiving section 10 decodes the TMDS signal received from an external signal source to conform to the processing standard of the signal processing section 20 . The TMDS receiving section 10 may include a decoder. The TMDS signal of the digital signal may have DVI or HDMI format. Specifically, when an external signal source transmits high-speed serial data in which parallel data is modulated,...

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Abstract

A display apparatus and a power control method thereof are provided. The display apparatus includes a power supplying part; a Transition Minimized Differential Signaling (TMDS) receiving part which decodes a TMDS signal input from an external signal source; a controller which controls the power supplying part to supply driving power to the TMDS receiving part when a clock signal of the TMDS signal is received. The power control method includes cutting off driving power to a Transition Minimized Differential Signaling (TMDS) receiving part when the display apparatus enters a power-saving mode; determining whether a clock signal is detected in a TMDS signal; and supplying driving power to the TMDS receiving part if it is determined that the clock signal is detected.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2006-0001404 filed on Jan. 5, 2006, the entire disclosure of which is incorporated herein by reference. technical field [0003] Devices and methods consistent with the present invention relate to a display device having a TMDS receiver that receives and decodes a Transition Minimized Differential Signaling (TMDS) format signal, which is a digital signal, and a power control method thereof. Background technique [0004] A TMDS signal, a digital video signal, is input from a signal source, such as a computer, to a TMDS receiver of a display device through a digital video interface (DVI) or a high-definition multimedia interface (HDMI). The TMDS receiver decodes the received TMDS signal into a signal in a format that can be processed by the display device. [0005] If no sync signal output from the TMDS receiver is detected, the related art display d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/00G06F3/14H04N5/765
CPCH04N5/63G09G5/003G09G5/006G09G2330/021G09G2370/12G09G2370/22A47G25/12A01G9/045
Inventor 高炯一
Owner SAMSUNG ELECTRONICS CO LTD
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