CN2101357U

CN2101357U - Static electricity eliminating film for screen

Info

Publication number: CN2101357U
Application number: CN 91224282
Authority: CN
Inventors: 符晓友
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-08-31
Filing date: 1991-08-31
Publication date: 1992-04-08

Abstract

The utility model relates to a static electricity eliminating film for screen, which belongs to the cathode ray tubes static electricity eliminating film for screen surface, comprising a conducting film, a leading food, a metal clip, a ground wire and pressure sensitive adhesives. The film clings to the surface of the screen; the screen sensitive static charge collected by the conducting film can be released by a conducting wire connected to the earth; thus, the various damage caused by the screen static electricity can be effectively eliminated. The utility model can be widely applied to the various CRT screens like the computer display, the household TV, etc.

Description

Static electricity eliminating film for screen

The utility model belongs to a kind of attachment device of CRT display, in particular for eliminating the attachment device of screen surface static.

Lead glass protective shield of radiation and " eyesight protection screen " etc. are arranged before the utility model proposes, though it has certain protective action to ray, high frequency electromagnetic radiation, but because of it does not contact with the indicator screen surface, there is not earth connection, can not eliminate the various harm that screen static is brought effectively, further respond on the contrary and accumulate more electrostatic charge.In addition, more than two kinds of designs heavy, product is a slab construction, installs to take unnecessary space.

The purpose of this utility model is to address the above problem.

The utility model can be eliminated the static of screen surface effectively shielding outside certain electromagnetic radiation.

Below in conjunction with accompanying drawing the utility model is described.

Fig. 1 eliminates the structure chart of film for cathode ray tube (hereinafter to be referred as CRT) the screen static that adopts transparency conducting layer.

Fig. 2 eliminates the sectional view of film upper conductive film for the CRT screen static that adopts transparency conducting layer.

Fig. 3 eliminates the structure chart of film for the CRT screen static that adopts opaque electric conducting material printing to form.

Fig. 4 eliminates the sectional view of film upper conductive film for the CRT screen static that adopts opaque electric conducting material printing to form.

As shown in Figure 1, the utility model CRT static electricity eliminating film for screen is made up of conducting film (1), conducting film leading foot (2), metal clip (3), ground wire (4) and pressure sensitive adhesive (5). Conducting film (1) is consistent with the curvature of the CRT screen surface of correspondingly-sized model, pressure sensitive adhesive (5) by conducting film (1) edge is fixed in the CRT screen surface, conducting film (1) is fixing by leading foot (2) and metal clip (3), and the ground wire (4) that metal clip (3) is drawn is used for ground connection (or connecing special-purpose ground wire, water pipe, steam heating pipe etc.).

Its action principle is: when CRT works, the electrostatic charge that the anode induction that CRT produces produces the CRT screen surface is collected by the conducting film of being close to screen surface (1), release in the earth by leading foot (2), metal clip (3) and ground wire (4), it is same when CRT quits work, the screen surface electrostatic charge of (capacitor that is made of high-voltage anode and CRT graphite linings) high pressure residue electric field induction that CRT itself stores is also released in the earth with the same manner, and conducting film (1) is simultaneously with the electromagnetic field radiation of Low ESR absorption from CRT.

Fig. 2 is the sectional view of conducting film (1), and the one or both sides (only having drawn one side among the figure) in the transparent base layer with 75～100% light transmittances (6) scribble transparency conducting layer (7). The optional thickness of transparent base layer (6) is the transparent polymer macromolecular material of 0.1-3mm, and the thickness that the utility model is chosen is 1mm, as thoroughly Bright plastics, transparent film etc. Be processed into the shape consistent with the CRT surface curvature by thermoforming, choosing of transparency can be selected the basic unit that the optional transparency of the CRT of white background is low, the basic unit that the optional transparency of the CRT of black matrix is high according to the contrast of CRT screen. Conductive layer (7) can will contain In by technologies such as spraying, gaseous phase deposition, chemical precipitations₂O ₃、SnO ₂Be adsorbed in the basic unit (6) Deng transparent conductive material, conductive layer thickness is about 5 μ m.

Eliminate film for print the CRT static that forms with opaque electric conducting material, as shown in Figure 3, its action principle is the same with the CRT static elimination film that adopts transparent material, its structure can be identical with elimination film shown in Figure 1, and its conducting film (1) is that one side or two-sided (only the drawing one side among the figure) on transparent base layer (6) gone up the glue (8) that printing contains acetylene carbon black or graphite or electric conducting materials such as elemental metals silver powder, copper powder.Its impressing pattern is a grid, and become with the installation horizontal line of conducting film (1) ± 45 °, the line-spacing of its grid is 10 lines/CM-40 line/CM, its width is 0.05mm-0.5mm, and in the utility model, optional 15 lines of line-spacing/CM, the optional 0.1mm of width.The utility model can be used for comprising black and white, color television set, and the static of CRT screens such as computer display is eliminated.

Claims

1, a kind of cathode ray tube screen surface electrostatic is eliminated film, and it is characterized in that: it is made up of conducting film (1), conducting film leading foot (2), metal clip (3), ground wire (4) and pressure sensitive adhesive (5).

2, cathode ray tube screen surface electrostatic according to claim 1 is eliminated film, it is characterized in that: conducting film (1) is made of transparent base layer (6) and conductive layer (7) or (8), scribbles conductive layer (7) or (8) at the one or both sides of transparent base layer (6).

3, cathode ray tube screen surface electrostatic according to claim 2 is eliminated film, and it is characterized in that: transparent base layer (6) is the transparent polymer macromolecular material, thickness 0.1-3mm,

4, cathode ray tube screen surface electrostatic according to claim 2 is eliminated film, and it is characterized in that: conductive layer (7) is a transparent conductive material, and can be adsorbed on the transparent base layer (6) by technologies such as spraying, gaseous phase deposition, chemical precipitations.

5, cathode ray tube screen surface electrostatic according to claim 2 is eliminated film, it is characterized in that: conductive layer (8) is opaque electric conducting material, and on transparent base layer (6), be printed to grid, and become with the installation horizontal line of conducting film (1) ± 45 °.

6, cathode ray tube screen surface electrostatic according to claim 4 is eliminated film, and it is characterized in that: transparency conducting layer (7) can be In ₂O ₃Or SnO ₂Deng transparent conductive material.

7, cathode ray tube screen surface electrostatic according to claim 5 is eliminated film, and it is characterized in that: opaque conductive layer (8) can be acetylene carbon black or graphite or copper powder etc.

8, cathode ray tube screen surface electrostatic according to claim 5 is eliminated film, and it is characterized in that: the netting twine spacing of grid is 10-40 line/CM, and the netting twine width is 0.05-0.5mm.

9, cathode ray tube screen surface electrostatic according to claim 1 is eliminated film, it is characterized in that: conducting film (1) is close on the cathode ray tube screen surface by pressure sensitive adhesive (5), and electrostatic charge is released in the earth by the leading foot (2) on the conducting film (1), metal clip (3) and ground wire (4).