CN203656704U - Background light source circuit of computer monitor - Google Patents
Background light source circuit of computer monitor Download PDFInfo
- Publication number
- CN203656704U CN203656704U CN201320535884.1U CN201320535884U CN203656704U CN 203656704 U CN203656704 U CN 203656704U CN 201320535884 U CN201320535884 U CN 201320535884U CN 203656704 U CN203656704 U CN 203656704U
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- China
- Prior art keywords
- light emitting
- circuit
- branch
- light source
- led
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a background light source circuit of a computer monitor. The background light source circuit comprises a high-brightness light emitting branch circuit, a colorful light emitting branch circuit, a flash light emitting branch circuit and a power branch circuit which are connected in parallel, wherein the high-brightness light emitting branch circuit comprises a switch S1 and three high-brightness light emitting diodes, and the three high-brightness light emitting diodes, namely, LED 1, LED 2 and LED 3 are connected in series; an integrated circuit (IC) and a light emitting diode which are connected are arranged in a tube casing, that is, an LED 5 is controlled by an integrated chip (IC); and the power circuit is formed by connecting an anode of a 12V power supply with a resistor R1 which has a voltage reduction effect in the circuit. With the adoption of the background light source circuit of the computer monitor, the monitor is more attractive and more colorful, and illumination can be provided when a computer is used for work at night or in the dark; during music playing or entertaining, colorful light is provided, the recreational effect is better; and moreover, the three light emitting branch circuits are separately controlled by three switches, so that use selectivity is facilitated.
Description
Technical field
The utility model relates to LED-backlit lamp field, particularly relates to a kind of computer monitor background light source circuit.
Background technology
There is computer in now a lot of families, especially to night want with computer but do not look on the bright side of things again life lamp, and we want with keyboard typing or read other file book etc., if only we can the surrounding of computer monitor load onto a background light source that.This background light source not only can provide illumination, and we can be used for seeing keyboard typing or seeing books lamp.Can also put the music on time, have the seven-color LED of following to accompany, entertainment effect is better.Can also, by the effect of flicker, remind others to keep off this computer.Can bring great convenience to us like this.
Utility model content
The purpose of this utility model is according to foregoing, and a kind of computer monitor background light source circuit is provided.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of computer monitor background light source circuit, is formed by high brightness luminescent branch road 3, seven color luminous branch roads 2, flashing branch road 1 and 4 four branch circuit parallel connections of power branch respectively; Described high brightness luminescent branch road 3 comprises switch S 1 and three high brightness LEDs, three high brightness light emitting diode LEDs 1, and LED2, LED3 is for being connected in series; Described seven color luminous branch roads 2 are in series by switch S 2 and seven color LEDs 4, have realized the integrated radiance such as automatic flicker, gradual change; Described flashing branch road 1 is in series by switch S 3 and flashing diode (LED) 5, described flashing type LED 5 is devices of a kind of photoelectricity combination, in shell, be provided with an IC and be connected with a light emitting diode, LED5 is subject to the control of integrated chip IC; Described power branch 4 is formed by the anodal contact resistance R1 of the power supply of 12V, and resistance R 1 plays the effect of step-down in circuit.
Described integrated IC circuit is become by oscillator, frequency divider and buffering driver bank, and oscillator produces a frequency of oscillation and carries out electric current amplification via buffering drive circuit, exports enough large electric current, makes LED flash luminous.
The resistance of described resistance R 1 is take 1K Ω as good, and resistance R 1 plays the effect of step-down in circuit.
After power connection, supply voltage is 12V, and this voltage can directly access from liquid crystal display, and then positive source is by resistance R 1 step-down of 1K, after step-down through three luminous branch roads of LED lamp.
Described three luminous branch roads of LED lamp act in accordance with the division of their functions and duties, and control separately, and each part forms independent mesh.
The utility model can make display more attractive in appearance gorgeous, and use computer office in night or dark time, can provide illumination; In the time playing music or amusement, there is the seven-color LED of following to accompany, make entertainment effect better; And three luminous branch roads of the utility model have three switches to control separately, easy to use is selective.
Accompanying drawing explanation
Fig. 1 is computer monitor background light source circuit diagram.
Illustrate: color luminous branch road 2 high brightness luminescent branch road 3 power branch 4 of flashing branch road 1 seven.
The specific embodiment
A kind of computer monitor background light source circuit, is formed by high brightness luminescent branch road 3, seven color luminous branch roads 2, flashing branch road 1 and 4 four branch circuit parallel connections of power branch respectively; Described high brightness luminescent branch road 3 is by switch S 1 and three high brightness LEDs, three high brightness light emitting diode LEDs 1, and LED2, LED3 is for being connected in series; Described seven color luminous branch roads 2 are in series by switch S 2 and seven color LEDs 4, LED4, have realized the integrated radiance such as automatic flicker, gradual change; Described flashing branch road 1 is in series by switch S 3 and flashing diode (LED) 5, described flashing type LED 5 is devices of a kind of photoelectricity combination, in shell, be but connected and form with a light emitting diode by an IC, LED5 is subject to the control of integrated chip IC; Described power branch 4 is formed by the anodal contact resistance R1 of the power supply of 12V, and resistance R 1 plays the effect of step-down in circuit.
Described integrated IC circuit is become by oscillator, frequency divider and buffering driver bank, and oscillator produces a frequency of oscillation and carries out electric current amplification via buffering drive circuit, exports enough large electric current, makes LED flash luminous.
The resistance of described resistance R 1 is take 1K Ω as good, and resistance R 1 plays the effect of step-down in circuit.
After power connection, supply voltage is 12V, and this voltage can directly access from liquid crystal display, and then positive source is by resistance R 1 step-down of 1K, after step-down through three luminous branch roads of LED lamp.
Specifically introduce by following 3 embodiment:
Closed S1 switch, three high brightness LEDs are bright, play the effect of illumination;
Closed S2 switch, seven color light emitting diodes have sent the light of multiple color, form multicoloured radiance, play the effect of amusement;
Closed S3 switch, flashing type light emitting diode is bright, for a moment bright, does not work for a moment, has formed the effect of being interrupted flicker, plays the effect of prompting.
Claims (2)
1. a computer monitor background light source circuit, is formed by high brightness luminescent branch road (3), seven color luminous branch roads (2), flashing branch road (1) and (4) four branch circuit parallel connections of power branch respectively; It is characterized in that: described high brightness luminescent branch road (3) comprises switch S 1 and three high brightness LEDs, three high brightness light emitting diode LEDs 1, LED2, LED3 is for being connected in series; Described seven color luminous branch roads (2) are in series by switch S 2 and seven color LEDs 4, described flashing branch road (1) is in series by switch S 3 and flashing diode (LED) 5, described flashing type LED 5 is devices of a kind of photoelectricity combination, in shell, be provided with an IC and be connected with a light emitting diode, LED5 is subject to the control of integrated chip IC; Described power branch (4) is formed by the anodal contact resistance R1 of the power supply of 12V.
2. a kind of computer monitor background light source circuit according to claim 1, is characterized in that: described integrated IC circuit is become by oscillator, frequency divider and buffering driver bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535884.1U CN203656704U (en) | 2013-08-30 | 2013-08-30 | Background light source circuit of computer monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535884.1U CN203656704U (en) | 2013-08-30 | 2013-08-30 | Background light source circuit of computer monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656704U true CN203656704U (en) | 2014-06-18 |
Family
ID=50923086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320535884.1U Expired - Fee Related CN203656704U (en) | 2013-08-30 | 2013-08-30 | Background light source circuit of computer monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656704U (en) |
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2013
- 2013-08-30 CN CN201320535884.1U patent/CN203656704U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20160830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |