CN202889504U - Liquid crystal display television with mural function - Google Patents

Abstract

The utility model discloses a liquid crystal display television with a mural function, which is composed of a front frame, a rear cover, a base and a liquid crystal display screen, wherein a rectangular shell which is internally provided with a reel is mounted at the upper part of the front frame; a reel motor, a power supply, a power supply switch, a control circuit, and a noise collecting microphone are also mounted in the shell; a canvas with patterns is wound on the reel; one end of the canvas is wound on the reel, and a strip shaped balance weight is mounted at the other end of the canvas; a voice collecting microphone is led out on the shell; and the voice collecting microphone and the noise collecting microphone are mounted on the canvas in a diagonal line manner. By virtue of the television disclosed by the utility model, not only the liquid crystal display screen can be prevented from dust influence when the television is not watched based on the unchanged structure of the original television, but also the television is novel in appearance.

Description

Band mural painting function LCD TV

Technical field

The utility model relates to a kind of band mural painting function LCD TV.

Background technology

With the progress of doing society, LCD TV progressively spreads to every household, the LCD TV characteristics that not only view reception effect is relatively good but also it is ultra-thin more and more obtain everybody approval, look just as a width of cloth is drawn, so many families all hang LCD TV on the wall, also there is a problem in this, at first be when not televiewing, TV extremely affects attractive in appearance just as a black cloth extension on the wall, in addition because liquid crystal display screen extremely easily adsorbs dust, so actual one is long, it is just very dirty that video screen seems, not only affects the view reception effect that also affects attractive in appearance, but since liquid crystal display screen more expensive generally be not allow careless wiping, for this reason many other just not be afraid of trouble be a LCD TV cover cover, try out so very trouble nor be beneficial to LCD TV and dispel the heat, affect the LCD TV life-span.

Summary of the invention

The utility model designs in order to solve existing these known problems just, the utility model relies on following technical proposals to realize, a kind of band mural painting function LCD TV, by front frame, bonnet, base and liquid crystal display screen form, the top of former frame is equipped with the rectangular housing of an inner spool of tape, reel motor also is installed in housing, power supply, mains switch, control circuit, noise is collected microphone, be wound with patterned painting canvas at spool, one end of painting canvas is wrapped on the spool, the other end is equipped with the counterweight of a strip, on housing, also draw a sound collecting microphone, this sound collecting microphone is collected microphone with noise and is become the diagonal mounting means at painting canvas, control circuit comprises a timing circuit and comparison circuit, comparison circuit be one with the operational amplifier of forward and reverse input, when we use, the Fresco device housing is placed on the LCD TV top, the sound collecting microphone is fixed on the television set speaker outlet sound mouth with double faced adhesive tape, open Fresco device and liquid crystal television power supply switch, at this time sound owing to LCD TV, so the sound that the sound collecting microphone is received is sound of television and ambient noise, noise on the Fresco device is collected microphone because away from television set speaker, so the sound of income mainly is ambient noise, the sound that also comprises television image in the ambient noise, but be far smaller than the sound of the television image that the sound collecting microphone receives, namely noise is collected sound gross power that microphone receives and is less than that sound collection means receives, the voltage of this two-way microphone is delivered to respectively forward and reverse input of operational amplifier when us, because the level that the sound positive input is sent here by the sound collecting microphone is far above the reverse input end level, at this time operational amplifier is exported high level, rotate painting canvas rollback spool by reel motor by control circuit, in housing, also be designed with a stop bit switch, after touching the painting canvas counterweight, stop reel motor work, after the LCD TV shutdown, because what sound collecting microphone and noise collection microphone were received all is ambient noise, so at this time the forward and reverse level of receiving of operational amplifier is identical, the operational amplifier output low level, the low level of operational amplifier output at first triggers a timing circuit, this timing circuit is a delayed startup circuit, in order to prevent that reel motor from producing misoperation when the television image short time is noiseless, about operated by rotary motion 5 minutes, after delay circuit time-delay finishes, painting canvas is sent by the reel motor reverse rotation by control circuit and is blocked before liquid crystal display screen.

The beneficial effects of the utility model are: realized not only can protecting when not televiewing liquid crystal display screen not to be subjected to the impact of dust but also also relatively more novel in appearance on the basis of the structure that does not change original television set.

Description of drawings

Accompanying drawing 1 is the schematic diagram of the utility model band mural painting function LCD TV.

Embodiment

Lower now please in detail referring to these accompanying drawings, now by reference to the accompanying drawings utility model is further described, accompanying drawing 1 is an embodiment of the present utility model, a kind of band mural painting function LCD TV, by front frame 107, bonnet 109, base 110 and liquid crystal display screen 112 form, the top of former frame 107 is equipped with the rectangular housing 102 of an inner spool of tape 113, reel motor 111 also is installed in housing 102, power supply 114, mains switch 103, control electricity 115, noise is collected microphone 101, be wound with patterned painting canvas 105 at spool 113, one end of painting canvas 105 is wrapped on the spool 113, the other end is equipped with the counterweight 106 of a strip, on housing 102, also draw a sound collecting microphone 104, this sound collecting microphone 104 is collected microphone 101 at 105 one-tenth diagonal mounting meanss of painting canvas with noise. and control circuit 115 comprises a timing circuit and comparison circuit, comparison circuit be one with the operational amplifier of forward and reverse input, when we use, Fresco device housing 102 is placed on the LCD TV top, sound collecting microphone 104 usefulness double faced adhesive tapes are fixed on the loudspeaker outlet sound mouth, open Fresco device switch 103 and liquid crystal television power supply switch, at this time sound owing to LCD TV, so the sound that sound collecting microphone 104 is received is sound of television and ambient noise, noise on the Fresco device is collected microphone 101 because away from loudspeaker, so the sound of income mainly is ambient noise, the sound that also comprises television image in the ambient noise, but be far smaller than the sound of the television image that sound collecting microphone 104 receives, the sound gross power that namely noise collection microphone 101 is received is less than the sound that sound collecting microphone 104 is received, the voltage of this two-way microphone is delivered to respectively forward and reverse input of operational amplifier when us, because the level that the sound positive input is sent here by sound collecting microphone 104 is far above the reverse input end level, at this time operational amplifier is exported high level, rotate painting canvas 105 rollback spools 113 by reel motor 111 by control circuit, also be designed with a stop bit switch 102 li of housings, after touching painting canvas counterweight 106, stop reel motor 111 work, after the LCD TV shutdown, because what sound collecting microphone 104 and noise collection microphone 101 were received all is ambient noise, so at this time the forward and reverse level of receiving of operational amplifier is identical, the operational amplifier output low level, the low level of operational amplifier output at first triggers a timing circuit, this timing circuit is a delayed startup circuit, in order to prevent that reel motor 111 from producing misoperation when the television image short time is noiseless, about operated by rotary motion 5 minutes, after delay circuit time-delay finishes, painting canvas 105 is sent by reel motor 111 reverse rotations by control circuit and blocked before liquid crystal display screen.

Although the utility model gives illustration with regard to its preferred embodiment, but the person skilled in the art is understood that, in the spirit and scope of the present utility model defined in described claims, also can make all changes and change to the utility model.

Claims (3)

1. be with mural painting function LCD TV for one kind, by front frame, bonnet, base and liquid crystal display screen form, it is characterized in that the top of former frame is equipped with the rectangular housing of an inner spool of tape, reel motor also is installed in housing, power supply, mains switch, control circuit, noise is collected microphone, be wound with patterned painting canvas at spool, an end of painting canvas is wrapped on the spool, and the other end is equipped with the counterweight of a strip, also draw a sound collecting microphone on housing, this sound collecting microphone is fixed near the outlet sound mouth of liquid crystal TV set loud speaker.

2. a kind of band mural painting function LCD TV as claimed in claim 1 is characterized in that, described control circuit comprises a timing circuit and a comparison circuit.

3. a kind of band mural painting function LCD TV as claimed in claim 2 is characterized in that described comparison circuit is comprised of an operational amplifier with forward and reverse input.