CN202049711U - Screen saver - Google Patents

Abstract

The utility model discloses a screen saver, and relates to a screen saver for a display screen. The screen saver comprises a display screen main body and a protective cover. The display screen main body comprises a casing, a glass screen, a backlight, a backlight control circuit and a power supply, wherein the glass screen is arranged on the casing; the backlight is arranged in the casing and jointed with the glass screen; and the protective cover is suitable for covering the glass screen. The display screen main body further comprises a Hall switch, wherein the power supply, the Hall switch, the backlight control circuit and the backlight are sequentially connect in series; and the protective cover is made from a magnetic material. The screen saver has the benefits that when electronic equipment is not in use, the protective cover is covered, the Hall switch is turned off, the power supply of the backlight is cut off, the backlight puts out and can not be started up by mistake, so that the electric energy of the electronic equipment is not wasted; and when the electronic equipment is required for use, the protective cover is uncovered, the Hall switch is turned on, the backlight is connected with the power supply, and the display screen is started up to bring convenience for users to use.

Description

Screen protective device

Technical field

The utility model relates to display screen, relates in particular to the screen protective device of display screen.

Background technology

At present, generally with diaphragm or protective bag protective device as electronic equipment screens such as computer and mobile phones; By the protective device of protective bag as screen, the protective bag of packing into after panel computer and mobile phone use reaches the purpose of protection screen with this; But existing these screen protective devices are single screen is protected; be in opening or closed condition but is difficult to control for the backlight of screen; usually use after panel computer and the mobile phone; they are put among the protective bag; but often the backlight of their screens among protective bag also goes out in opening; like this, a large amount of electric energy of panel computer and these electronic equipments of mobile phone have been wasted.

The utility model content

The purpose of this utility model is that to overcome electronic equipment screen protective device in the prior art can not be a kind of screen protective device of opening or closing the deficiency proposition of controlling to the backlight of screen.

The utility model is achieved through the following technical solutions: a kind of screen protective device comprises display screen body and over cap; Described display screen body comprises housing, glass screen, backlight, backlight control circuit and power supply, and described glass screen is arranged at described housing, and described backlight is arranged in the described housing and fits in glass screen; Described over cap is suitable for covering described glass screen; Described display screen body also comprises Hall switch, and described power supply, Hall switch, backlight control circuit and backlight are connected in series successively; Described over cap is made by magnetic material.

The beneficial effects of the utility model are: be provided with Hall switch in the housing of display screen body of the present utility model, power supply, Hall switch, backlight control circuit and backlight are connected in series successively, over cap is that magnetic material is made, when over cap is sticked display screen, close under the effect in the magnetic field that produces in the protected lid of Hall switch, the power supply of backlight is cut off, and backlight extinguishes; When will use electronic equipment, take away over cap, the magnetic field of display screen top disappears, and Hall switch is opened, the backlight energized, this moment, display screen was in the state of spreading its tail; By this, when we do not need to use electronic equipment, cover over cap, Hall switch is closed, and the power supply of backlight is cut off, and backlight extinguishes, and can not opened by mistake and open, and has guaranteed that the electric energy of electronic equipment is not wasted; When will use electronic equipment, take away over cap, Hall switch is opened, backlight and power connection, display screen is in the state of spreading its tail, and is user-friendly to.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a block flowsheet synoptic diagram of the present utility model.

Among the figure: 1, display screen body; 2, over cap; 3, Hall switch; 4, backlight control circuit; 5, backlight; 6, power supply; 11, housing; 12, glass screen.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

With reference to shown in Figure 1, screen protective device of the present utility model comprises display screen body 1 and overcap 2; Display screen body 1 compriseshousing 11,glass screen 12,backlight 5,backlight control circuit 4 andpower supply 6, andglass screen 12 is arranged athousing 11, andbacklight 5 is arranged in thehousing 11 and fits inglass screen 12; Overcap 2 is suitable for coveringglass screen 12; Display screen body 1 also comprisesHall switch 3, andpower supply 6,Hall switch 3,backlight control circuit 4 andbacklight 5 are connected in series successively; Overcap 2 is made by magnetic material.Be provided withHall switch 3 in thehousing 11 of display screen body 1 of the present utility model,power supply 6,Hall switch 3,backlight control circuit 4 andbacklight 5 are connected in series successively, overcap 2 is that magnetic material is made, when overcap 2 is sticked display screen, close under the effect in the magnetic field that produces in theHall switch 3 protectedlids 2, the power supply ofbacklight 5 is cut off, andbacklight 5 extinguishes; When will use electronic equipment, take away overcap 2, the magnetic field of display screen top disappears, andHall switch 3 is opened,backlight 5 energized, this moment, display screen was in the state of spreading its tail; By this, when we do not need to use electronic equipment, cover overcap 2,Hall switch 3 is closed, and the power supply ofbacklight 5 is cut off, and backlight extinguishes, and can not opened by mistake and open, and has guaranteed that the electric energy of electronic equipment is not wasted; When will use electronic equipment, take away overcap 2,Hall switch 3 is opened, andbacklight 5 is connected withpower supply 6, and display screen is in the state of spreading its tail, and is user-friendly to.

The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned embodiment.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this instructions, these terms do not constitute any restriction to the utility model just for convenience of description.

Claims (1)

1. a screen protective device comprises display screen body and over cap;

Described display screen body comprises housing, glass screen, backlight, backlight control circuit and power supply, and described glass screen is arranged at described housing, and described backlight is arranged in the described housing and fits in glass screen; Described over cap is suitable for covering described glass screen;

It is characterized in that: described display screen body also comprises Hall switch, and described power supply, Hall switch, backlight control circuit and backlight are connected in series successively;

Described over cap is made by magnetic material.

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