CN1109949C - Display device with power-saving control function - Google Patents
Display device with power-saving control function Download PDFInfo
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- CN1109949C CN1109949C CN98118297A CN98118297A CN1109949C CN 1109949 C CN1109949 C CN 1109949C CN 98118297 A CN98118297 A CN 98118297A CN 98118297 A CN98118297 A CN 98118297A CN 1109949 C CN1109949 C CN 1109949C
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Abstract
The present invention relates to a display device with a power-saving control function, which comprises a casing, a display circuit, a power supply circuit, a signal transmitting device, a detector and a control circuit, wherein the display circuit is arranged in the casing and is used for displaying image signals; the power supply circuit is arranged in the casing and is used for controlling the power supply of the display circuit according to a power supply control signal; the signal transmitting device is positioned at a user terminal and is used for transmitting a user position signal; the detector is arranged on the casing and is used for detecting the user position signal; the control circuit is electrically connected with the power supply circuit and is used for generating the corresponding power supply control signal according to the user position signal received by the detector to control the power supply of the display circuit from the power supply circuit.
Description
Technical field
The present invention relates to a kind of display device, particularly relate to a kind of display device with power-saving control function.
Background technology
Existing computer all is provided with power-saving control function usually.After the user stopped to import data and surpasses one period schedule time, computer will make display device entering electricity-saving mode, and this moment, the user must rolling mouse or touch control keyboard, just can make computer restart display device.Just do not do the action of any input in the given time if the user does not leave the working position, this moment, computer still can make display device entering electricity-saving mode because can't differentiate, and this will make user's work be interrupted.This situation regular meeting makes the user that the power-saving control function of computer is turned off avoiding and is constantly bothered, and can make computer waste many valuable electric power resources again yet turn off power-saving control function.
Summary of the invention
Therefore, fundamental purpose of the present invention is to provide a kind of display device, whether it can be sent the state that user's position signalling detects the user by a sender unit of being located at user end should enter a default battery saving mode with decision, thus the saving electric power resource.
The present invention is achieved in that promptly provides a kind of display device, and it includes: a housing; One display circuit is located in this housing, is used for display image signals; One power circuit is located in this housing, is used for controlling the power supply supply of this display circuit according to a power control signal; One is positioned at the sender unit of user end, is used for launching user's position signalling, and this user's position signalling has directivity; One detecting device is located on this housing, is used for detecting this user's position signalling; And a control circuit, being electrically connected on this power circuit, the user's position signalling that is used for receiving according to this detecting device produces corresponding power control signal to control the power supply supply of this power circuit to this display circuit; Wherein, when this user in the face of the angle of this detecting device during less than certain angle, this detecting device can detect this user's position signalling that this sender unit transmits, this control circuit can be controlled this power circuit and avoid entering a battery saving mode, and when this user in the face of the angle of this detecting device during greater than this predetermined angular, this detecting device does not detect this user's position signalling that this sender unit transmits, and this control circuit can be controlled this power circuit and enter this battery saving mode.
The present invention also can realize like this, and a kind of display device promptly is provided, and it includes: a housing; One display circuit is located in this housing, is used for display image signals; One power circuit is located in this housing, is used for controlling the power supply supply of this display circuit according to a power control signal; One is positioned at the sender unit of user end, is used for launching user's position signalling; One detecting device is located on this housing, is used for detecting this user's position signalling; And a control circuit, being electrically connected on this power circuit, the user's position signalling that is used for receiving according to this detecting device produces corresponding power control signal to control the power supply supply of this power circuit to this display circuit; Wherein, this sender unit is a wireless transmitter, and this detecting device is a radiowave detecting device, is used for detecting the radiowave that this wireless transmitter transmits in a distance of being scheduled to, to judge this user's position.
Description of drawings
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the calcspar of display device of the present invention;
Fig. 2 is the calcspar of Fig. 1 display device sender unit;
Fig. 3 is the process flow diagram of Fig. 1 display device power-saving control function;
Fig. 4 is the calcspar of another display device of the present invention;
Fig. 5 is the calcspar of Fig. 4 display device sender unit;
Fig. 6 is the process flow diagram of Fig. 4 display device power-saving control function;
Fig. 7 is another sender unit calcspar of Fig. 4 display device;
Fig. 8 is the process flow diagram of another power-saving control function of Fig. 4 display device.
Embodiment
With reference to figure 1.Fig. 1 is the synoptic diagram of display device 10 of the present invention.Display device 10 includes a housing (not shown), one display circuit 12, be located in the housing, be used for display image signals, one power circuit 14, be located in the housing, be used for controlling the power supply supply of display circuit 12 according to a power control signal, one detecting device 18 is located on the housing, is used for detecting user's position signalling, an and control circuit 20, be electrically connected on power circuit 14, be used for producing corresponding power control signal, with the power supply supply of 14 pairs of display circuits 12 of control power circuit according to user's position signalling that detecting device 18 is received.Control circuit 20 includes a memory storage 24 in addition and is used for storing a default identification code 26.
With reference to figure 2.Fig. 2 is the synoptic diagram of the sender unit 16 of Fig. 1 display device 10.Display device 10 includes a sender unit 16 in addition, be fixed on one's body the user, and the one predetermined cycle of foundation is launched user's position signalling.Sender unit 16 can be designed to different forms and be secured on one's body the user, and the form of safety pin or clip for example can be clipped on user's the rims of spectacle, on the neckline of shirtfront, or on the permit identification worn with oneself of user.Sender unit 16 includes a light source 28 with directivity, is used for launching light, i.e. user's position signalling, and a control circuit 32 is used for controlling the emission of user's position signalling, and a battery 30, is used to provide power supply.Wherein control circuit 32 includes a memory storage 34, be used for storing an identification code 36, and user's position signalling that sender unit 16 is launched contains identification code 36.Sender unit 16 is launched user's position signalling according to a predetermined period, and detecting device 18 can receive user's position signalling according to this cycle, to judge the user position.
With reference to figure 3.Fig. 3 is the process flow diagram of the power-saving control function of Fig. 1 display device 10.After opening display device 10, if detecting device 18 detects user's position signalling that sender unit 16 is launched, and its identification code that includes 36 conforms to memory storage 24 interior default identification codes 26, represent that promptly the user is using display device 10, so display device 10 can continue its work.If detecting device 18 does not detect the user's position signalling that conforms to identification code 26, represent that promptly the user is not using display device 10, this moment, the power supply supply of 14 pairs of display device 10 of power circuit was controlled in control circuit 20 meetings according to a default power-saving control pattern.When detecting device 18 detected the user's position signalling that conforms to identification code 26 once more, display device 10 can be recovered its work.
Because light source 28 has directivity, therefore detect the user's position signalling that conforms to identification code 26 when detecting device 18, represent that promptly the user is facing to display device 10 within a predetermined distance and with a predetermined angular range.The expression user does not leave display device 10 within a distance of being scheduled to, and should be the user when using display device 10 by predetermined angular range, faces the angular range of display device 10, i.e. user's direction of visual lines.And detect less than the user's position signalling that conforms to identification code 26 when detecting device 18, represent that promptly the user has left display device 10, though or the user does not leave display device 10, do not have facing to display device 10.
The light source 28 of sender unit 16 is replaceable to be a radio source transmitter.Owing to the radio source transmitter does not have directivity, therefore work as detecting device 18 and detect the user's position signalling that conforms to less than identification code, represent that promptly the user has left display device 10, not in a distance of being scheduled to.
With reference to figure 4.Fig. 4 is the calcspar of another display device 40 of the present invention.Display device 40 includes an optical sensor 46 and a radiowave sensor 48 with display device 10 different being, the detecting device 44 of display device 40.Please refer to Fig. 5.Fig. 5 is the synoptic diagram of the sender unit 42 of Fig. 4 display device 40.Sender unit 42 is positioned at user's end, and sender unit 42 is that with the difference of sender unit 16 sender unit 42 includes a light source 50 and a wireless transmitter 52 simultaneously.Optical sensor 46 is to be used for the light that detection light source 50 transmitted, and radiowave sensor 48 then is to be used for detecting the radio wave signal that wireless transmitter 52 is transmitted.Light source 50 and wireless transmitter 52 are to launch light and radio wave signal according to a predetermined cycle, and optical sensor 46 and radiowave sensor 46 then are to receive light and radio wave signal according to this cycle, to judge user's position.
With reference to figure 6.Fig. 6 is the process flow diagram of the power-saving control function of Fig. 4 display device 40.When radiowave sensor 48 detects wireless transmitter 52 radio wave signals that conform to identification code 26 that transmitted, and optical sensor 46 is when detecting the light that is sent less than light source 50, and control circuit 54 can beginning be controlled the power supply supply of 56 pairs of display device 40 of power circuit according to first a default power-saving control pattern.Because light has directivity, and radio wave signal does not have directivity, therefore work as wireless transmitter 52 and detect radio wave signal, and optical sensor 46 does not detect the light that light source 50 is sent, do not leave computer though promptly represent the user, yet its sight is not but being watched display device 40 attentively, is not therefore using computer.When radiowave sensor 48 detects that transmitted less than wireless transmitter 52 during with radio wave signal that identification code 26 conforms to, control circuit 54 can begin to control according to second a default power-saving control pattern power supply supply of 56 pairs of display device 40 of power circuit, because the user has left display device 40.And when radiowave sensor 48 and optical sensor 46 detected the radio wave signal that conforms to identification code 26 and light again, display device 40 can be recovered its operate as normal.
With reference to figure 7 and Fig. 8.Fig. 7 is another sender unit 60 of display device 40.Fig. 8 is the process flow diagram of another power-saving control function of display device 40.Sender unit 60 is that with the difference of sender unit 42 sender unit 60 includes a vibration detection device 62 in addition and is used for detecting moving of user.When vibration detection device 62 detected the user and moves, vibration detection device 62 can start light sources 64 and 66 3 seconds of wireless transmitter.When the radiowave sensor 48 of detecting device 44 and optical sensor 46 receive the light that radio wave signal that wireless transmitter 66 transmits conform to identification code 26 and light source 64 are that sent with identification code 26 conforms to, display device 40 can continue its operate as normal, otherwise if having only radiowave sensor 48 to receive the radio wave signal that wireless transmitter 66 transmits conform to identification code 26, control circuit 54 can reduce the power supply supply of 56 pairs of display device 40 of power circuit according to a default power-saving control pattern.When the user does not have displacement, vibration detection device 62 can not start wireless transmitter 66, the radiowave sensor 48 of detecting device 44 can not receive the radio wave signal that wireless transmitter 66 transmits conform to identification code 26, so display device 40 can be kept its duty or power down mode.
Compare with existing display device, display device 10,40 utilizations of the present invention are fixed on user's sender unit on one's body and launch the user's position signalling with directivity, make detecting device whether can detect the user in the face of display device.Therefore when the user was watching display device attentively, though without any input action, display device still can continue its work, can still not watch attentively under the situation of display device the user as existing display device, entered battery saving mode and influenced user's work.In addition, user's position signalling includes identification code, and when default identification code conformed in the identification code that has user's position signalling only and the display device, display device just can continue its work.Therefore display device 10,40 can detect user's duty exactly and fully reaches purpose of power saving.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (15)
1. display device, it includes:
One housing;
One display circuit is located in this housing, is used for display image signals;
One power circuit is located in this housing, is used for controlling the power supply supply of this display circuit according to a power control signal;
One is positioned at the sender unit of user end, is used for launching user's position signalling, and this user's position signalling has directivity;
One detecting device is located on this housing, is used for detecting this user's position signalling; And
One control circuit is electrically connected on this power circuit, and the user's position signalling that is used for receiving according to this detecting device produces corresponding power control signal to control the power supply supply of this power circuit to this display circuit;
Wherein, when this user in the face of the angle of this detecting device during less than certain angle, this detecting device can detect this user's position signalling that this sender unit transmits, this control circuit can be controlled this power circuit and avoid entering a battery saving mode, and when this user in the face of the angle of this detecting device during greater than this predetermined angular, this detecting device does not detect this user's position signalling that this sender unit transmits, and this control circuit can be controlled this power circuit and enter this battery saving mode.
2. display device as claimed in claim 1 is characterized in that, when this user leaves before this display device and when making this detecting device detect less than user's position signalling, this control circuit can be controlled this power circuit and enter this battery saving mode.
3. display device as claimed in claim 1, it is characterized in that, user's position signalling that this sender unit is launched contains an identification code, and when this detecting device detects this user's position signalling, if the identification code in this user's position signalling conforms to an identification code of presetting, then this control circuit can begin to control the power supply supply of this power circuit to this display device according to this power-saving control pattern.
4. display device as claimed in claim 3 is characterized in that, this control circuit includes a memory storage and is used for storing this default identification code.
5. display device as claimed in claim 1 is characterized in that, this sender unit is fixed on this user's the body so that user's position signalling that this detecting device is launched according to this sender unit detects this user's position.
6. display device as claimed in claim 1 is characterized in that, this sender unit is launched this user's position signalling according to a predetermined cycle, and this detecting device then receives this user's position signalling to judge this user's position according to this cycle.
7. display device as claimed in claim 1 is characterized in that, this sender unit is a light source, and this detecting device is used for detecting the light that this light source is transmitted in a distance of being scheduled to, to judge this user's position.
8. display device as claimed in claim 1 is characterized in that, this sender unit is one to have the light source of directivity.
9. display device as claimed in claim 1, it is characterized in that, this sender unit comprises a light source and a wireless transmitter, this detecting device comprises an optical sensor, be used for detecting the light that this light source transmits, and a radiowave sensor, be used for detecting the radio wave signal that this wireless transmitter transmits.
10. display device as claimed in claim 9, it is characterized in that, this light source and this wireless transmitter are launched light and radio wave signal according to a predetermined cycle, this optical sensor and this radiowave sensor then are to receive light and radio wave signal according to this cycle, to judge this user's position.
11. display device as claimed in claim 10, it is characterized in that, when this radiowave sensor to radio wave signal that this wireless transmitter transmitted, when this optical sensor but detected the light that sends less than this light source, this control circuit can begin to control the power supply supply of this power circuit to this display device according to first a default power-saving control pattern; When this radiowave sensor and this optical sensor all detected the light that radio wave signal and this light source sent that transmits less than this wireless transmitter, this control circuit can begin to control the power supply supply of this power circuit to this display device according to second a default power-saving control pattern.
12. display device as claimed in claim 11, it is characterized in that, this sender unit is provided with a vibration detection device in addition, be used for detecting moving of this user, when this vibration detection device detects the user and moves, this vibration detection device can start this light source and this wireless transmitter one scheduled time slot, radiowave sensor on this detecting device receives the radio wave signal that this wireless transmitter transmits, when this optical sensor but detects the light that sends less than this light source, this control circuit can begin to control the power supply supply of this power circuit to this display device according to a default power-saving control pattern, if during the light that this optical sensor also detects this light source to be sent, this control circuit can recover the power supply supply of this power circuit to this display device.
13. display device as claimed in claim 12 is characterized in that, the light source on this sender unit is one to have the light source of directivity.
14. display device as claimed in claim 13 is characterized in that, this sender unit comprises a battery, is used for providing power supply to this light source, wireless transmitter and vibration detection device.
15. a display device, it includes:
One housing;
One display circuit is located in this housing, is used for display image signals;
One power circuit is located in this housing, is used for controlling the power supply supply of this display circuit according to a power control signal;
One is positioned at the sender unit of user end, is used for launching user's position signalling;
One detecting device is located on this housing, is used for detecting this user's position signalling; And
One control circuit is electrically connected on this power circuit, and the user's position signalling that is used for receiving according to this detecting device produces corresponding power control signal to control the power supply supply of this power circuit to this display circuit;
Wherein, this sender unit is a wireless transmitter, and this detecting device is a radiowave detecting device, is used for detecting the radiowave that this wireless transmitter transmits in a distance of being scheduled to, to judge this user's position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98118297A CN1109949C (en) | 1998-10-02 | 1998-10-02 | Display device with power-saving control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98118297A CN1109949C (en) | 1998-10-02 | 1998-10-02 | Display device with power-saving control function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1250173A CN1250173A (en) | 2000-04-12 |
| CN1109949C true CN1109949C (en) | 2003-05-28 |
Family
ID=5226023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98118297A Expired - Fee Related CN1109949C (en) | 1998-10-02 | 1998-10-02 | Display device with power-saving control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109949C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100361463C (en) * | 2001-06-19 | 2008-01-09 | 神基科技股份有限公司 | Input safety control method and device for network far end with call identification code |
| JP2010258607A (en) * | 2009-04-22 | 2010-11-11 | Sony Corp | Imaging device, imaging control method and imaging control program |
| CN102611466A (en) * | 2011-01-25 | 2012-07-25 | 镁骅科技有限公司 | Induction type radio transmission device with power-saving transmission function |
| CN106292304A (en) * | 2015-05-22 | 2017-01-04 | 佛山市顺德区美的电热电器制造有限公司 | Control device, method and the household electrical appliance of household electrical appliance standby interface |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375245A (en) * | 1993-02-22 | 1994-12-20 | Tandberg Data A/S | Apparatus for automatically reducing the power consumption of a CRT computer monitor |
| US5548764A (en) * | 1993-04-30 | 1996-08-20 | Advanced Micro Devices, Inc. | Power interrupt device with remote activity detector |
-
1998
- 1998-10-02 CN CN98118297A patent/CN1109949C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375245A (en) * | 1993-02-22 | 1994-12-20 | Tandberg Data A/S | Apparatus for automatically reducing the power consumption of a CRT computer monitor |
| US5548764A (en) * | 1993-04-30 | 1996-08-20 | Advanced Micro Devices, Inc. | Power interrupt device with remote activity detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1250173A (en) | 2000-04-12 |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BENQ ELECTRONS STOCK CO., LTD. Free format text: FORMER NAME OR ADDRESS: MINGHONG STOCK CO., LTD. Owner name: BENQ MOTOR CO., LTD. Free format text: FORMER NAME OR ADDRESS: BENQ ELECTRONS STOCK CO., LTD. |
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Patentee after: BENQ Corp. Patentee before: BenQ Corporation Patentee after: BenQ Corporation Patentee before: MINGQI COMPUTER Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BenQ Information Technology Co.,Ltd. Assignor: Benq Corp. Contract fulfillment period: 2005.1.1 to 2011.12.31 Contract record no.: 2009990000097 Denomination of invention: Display device with power-saving control function Granted publication date: 20030528 License type: Exclusive license Record date: 20090218 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2005.1.1 TO 2011.12.31; CHANGE OF CONTRACT Name of requester: BENQ INFORMATION TECHNOLOGY CO., LTD. Effective date: 20090218 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030528 Termination date: 20121002 |