CN201270140Y - Display having automatic opening/closing function - Google Patents
Display having automatic opening/closing function Download PDFInfo
- Publication number
- CN201270140Y CN201270140Y CNU2008201420363U CN200820142036U CN201270140Y CN 201270140 Y CN201270140 Y CN 201270140Y CN U2008201420363 U CNU2008201420363 U CN U2008201420363U CN 200820142036 U CN200820142036 U CN 200820142036U CN 201270140 Y CN201270140 Y CN 201270140Y
- Authority
- CN
- China
- Prior art keywords
- display
- circuit
- infrared sensor
- sensor
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a display which can turn on or turn off automatically, comprising a main board circuit of the display. The display is characterized in that a signal processing chip of the main board circuit of the display is connected with an induction circuit of an infrared sensor. The display has the advantages that automatic shutdown of the display can be guaranteed when users left for a period of time, thereby saving energy and avoiding the display working reactively for a long time.
Description
Technical field
The utility model belongs to display, relates in particular to a kind of display with automatic switching function.
Background technology
At present, though display itself is provided with hand switch, generally display is connected with host computer, only turns off main frame, and display is shutdown together.If people are gone for a season temporarily, should use and manually turn off display, with energy savings with avoid the long idle work of display.But a lot of users often forget shutdown, cause unnecessary energy loss and loss display.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and a kind of display with automatic switching function is provided, and display shuts down automatically can to guarantee to be gone for a season the user afterwards.
The utility model for achieving the above object, by the following technical solutions: a kind of display with automatic switching function, comprise the motherboard circuit of display, it is characterized in that: the signal processing chip of described display main board circuit is connected with the sensor circuit of infrared sensor.
The induced electricity routing sensor of described infrared sensor, one-level amplifier, two-stage amplifier, comparer connect to form successively.
The utility model beneficial effect: can guarantee that user's back display that is gone for a season shuts down automatically, with energy savings with avoid the long idle work of display.
Description of drawings
Fig. 1 is a principle of work block diagram of the present utility model;
Fig. 2 is the principle of work block diagram of the sensor circuit of infrared sensor.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in the figure, a kind of display with automatic switching function comprises the motherboard circuit of display, and the signal processing chip of described display main board circuit is connected with the sensor circuit of infrared sensor.The induced electricity routing sensor of described infrared sensor, one-level amplifier, two-stage amplifier, comparer connect to form successively.The sensor circuit of infrared sensor can have discrete component or ready-made integrated circuit to connect to form.Principle of work: the signal of exporting by the sensor circuit of infrared sensor reaches the purpose of controlling the display automatic switch.The function of infrared sensor sensor circuit is by to the Signal Processing that infrared sensor produced, and makes signal become the required pulse signal of monitor switch.As shown in Figure 2, the principle of infrared sensor is to utilize the crystal pyroelectric effect, the human body specific wavelength: sensor internal has two anti-phase linking to each other of sensitive element, and the two elements degree of polarization is identical when human body is static, and the quiet output voltage of cancelling each other is 0; But when human body moves, two elements degree of polarization difference, quiet output voltage is not 0, thereby produce faint voltage signal, this voltage signal becomes the required pulse signal of monitor switch through the processing of amplifier and comparer, the pulse signal of the sensor circuit of infrared sensor output is input to signal processing chip inside, and signal processing chip is by assigning the order of monitor switch to the judgement that receives this pulse signal, thereby makes the display automatic switch.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1, a kind of display with automatic switching function comprises the motherboard circuit of display, and it is characterized in that: the signal processing chip of described display main board circuit is connected with the sensor circuit of infrared sensor.
2, the display with automatic switching function according to claim 1 is characterized in that: the induced electricity routing sensor of described infrared sensor, one-level amplifier, two-stage amplifier, comparer connect to form successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201420363U CN201270140Y (en) | 2008-09-19 | 2008-09-19 | Display having automatic opening/closing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201420363U CN201270140Y (en) | 2008-09-19 | 2008-09-19 | Display having automatic opening/closing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201270140Y true CN201270140Y (en) | 2009-07-08 |
Family
ID=40842748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201420363U Expired - Fee Related CN201270140Y (en) | 2008-09-19 | 2008-09-19 | Display having automatic opening/closing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201270140Y (en) |
-
2008
- 2008-09-19 CN CNU2008201420363U patent/CN201270140Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20110919 |