JP2003016934A - Method and device for sticking functional film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a failure such as the formation of wrinkles and bubbles while shortening working time. SOLUTION: Uniform tension is applied to a functional film 4 by a film holding mechanism 9. In this state, the film holding mechanism 9 moves downward while keeping a horizontal state, and an adhesive layer 5 of the functional film 4 and a display screen surface 2 of a cathode-ray tube 1 are brought into contact. The functional film 4 is thereby stuck to the display screen surface 2 of the cathode-ray tube 1. A conventional pressure roller is not used in sticking the functional film 4, so that time for sticking work can be shortened to improve productivity. Further, the disuse of the pressure roller results in preventing the formation of wrinkles and bubbles when sticking the functional film to the cathode-ray tube.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for sticking a functional film having an adhesive layer on the surface of a display screen of a cathode ray tube. Specifically, a defect in which wrinkles, bubbles, etc. are generated by contacting the adhesive layer of this functional film with the surface of the display screen of the cathode ray tube while applying even tension to the functional film having the adhesive layer The present invention relates to a method and an apparatus for attaching a functional film, which is capable of preventing the above and shortening the working time.

[0002]

2. Description of the Related Art In order to prevent an image from being difficult to see due to external light or illumination light being reflected on the screen on the display surface (panel glass surface) of a cathode ray tube currently used in computers, televisions and the like. A functional film consisting of an anti-reflection film layer, an antistatic film layer for preventing the surface of the panel glass from being charged, and a surface protection film layer for preventing the glass of the display screen of the cathode ray tube from being damaged. It is worn. In addition to these, explosion-proof film,
A film having various functions such as an electromagnetic shield film may be used. A conventional method of attaching such a functional film to the surface of the display screen of the cathode ray tube will be described.

As shown in FIG. 5, the functional film 4 having an adhesive layer is placed on the surface 2 of the display screen of the cathode ray tube 1 with its adhesive surface (the surface coated with the adhesive layer 5) facing downward. Then, the cylindrical pressing roller 6 rotatably held is moved along the surface 2 of the display screen while the functional film 4 is being pressed. As a result, the functional film 4 is attached to the surface 2 of the display screen of the cathode ray tube 1 so that wrinkles and bubbles do not enter.

[0004]

However, as described above, by moving along the surface 2 of the display screen while pressing with the roller 6 from the side opposite to the adhesive surface of the functional film 4, When the method of sticking the functional film 4 on the surface 2 of the display screen is used, in reality, the pressing roller 6 does not evenly apply pressure, so that the wrinkle 1
1 is often generated, and there is a problem that bubbles 12 are generated due to insufficient pressure of the pressing roller 6 (see FIG. 5). Further, since the moving speed of the pressing roller is limited, there is a problem that the working time is long and the productivity is poor. Therefore, an object of the present invention is to provide a sticking method and a sticking device for a functional film, which can prevent defects such as wrinkles and bubbles from occurring, and can shorten the working time.

[0005]

A method for sticking a functional film according to the present invention is a method for sticking a functional film having an adhesive layer on the surface of a display screen of a cathode ray tube.
The step of applying uniform tension to the functional film, and the adhesive layer of the functional film and the surface of the display screen of the cathode ray tube are brought into contact with each other while the tension tension is applied to the functional film, and the functional film is displayed on the cathode ray tube display screen. And a step of adhering to the surface of the.

Further, the functional film sticking device according to the present invention is a device for sticking a functional film having an adhesive layer on the surface of the display screen of a cathode ray tube, and a uniform tension is applied to the functional film. It has means for bringing the adhesive layer of the functional film into contact with the surface of the display screen of the cathode ray tube in the applied state, and adhering the functional film to the surface of the display screen of the cathode ray tube.

In the present invention, the adhesive layer of the functional film and the surface of the display screen of the cathode ray tube are brought into contact with each other in a state in which the functional film is applied with a uniform tension, and the functional film is attached to the display screen of the cathode ray tube. Stick on the surface. In this case, for example, the functional film and the surface of the display screen of the cathode ray tube are contacted in parallel. Also, for example, the functional film is brought into contact with one end of the surface of the display screen of the cathode ray tube while maintaining a predetermined angle with respect to the surface of the display screen of the cathode ray tube, and then the predetermined angle is reduced from that state, and the functional film and the cathode ray tube are Touch the surface of the display screen of. When a functional film is attached, a pressing roller is not used as in the conventional case, and the attaching work time can be shortened and the productivity can be improved. Further, since the pressing roller is not used, it is possible to prevent wrinkles, bubbles, etc. from occurring when the functional film is attached to the cathode ray tube.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of the functional film sticking device 10. The functional film sticking device 10 is composed of a cathode ray tube fixing mechanism 3 and a film holding mechanism 9. The cathode ray tube fixing mechanism 3 is for fixing the cathode ray tube 1 to which the functional film 4 is to be attached. This CRT fixing mechanism 3
Fixes the cathode ray tube 1 so that the surface 2 of the display screen faces upward and is horizontal, and is fixed so as not to shake when the functional film 4 is attached.

The film holding mechanism 9 applies tensile tension to the functional film 4 to be attached to the cathode ray tube 1, and in that state, the surface 2 of the display screen of the cathode ray tube 1.
Functional film 4 keeping horizontal so that it is parallel to
Is pressed against the surface 2 of the display screen to be attached.

The film holding mechanism 9 has a film holding portion 7a for holding one end and the other end of the functional film 4,
7b. By biasing the film sandwiching portions 7a and 7b in mutually opposite directions, it is possible to apply a uniform tensile tension to the functional film 4. Also,
The film holding mechanism 9 can be moved up and down as shown by an arrow A in FIG.

Next, the functional film sticking apparatus 1 described above
A method for attaching the functional film 4 using 0 will be described. First, the cathode ray tube 1 is held. In this case, as shown in FIG. 1, in the state before the functional film 4 is attached, the cathode ray tube 1 makes the surface 2 of the display screen face upward and is horizontal, and shakes when the functional film 4 is attached. It is held by the fixing mechanism 3 so that it does not exist.

Next, a uniform tension is applied to the functional film 4. In this case, as shown in FIG. 1, with the surface of the functional film 4 on which the adhesive layer 5 is applied facing downward, both ends of the functional film 4 are sandwiched by the film sandwiching portions 7 a, 7 a.
Hold with b. Then, by pulling the film sandwiching portions 7a and 7b in mutually opposite directions, a uniform pulling tension is applied to the functional film 4.

Next, the film holding mechanism 9 is moved downward so that the functional film 4 is brought into contact with the surface 2 of the display screen of the cathode ray tube 1 and attached. At this time, as described above, with the tension applied to the functional film 4,
The film holding mechanism 9 moves downward while maintaining the parallel state between the functional film 4 and the surface 2 of the display screen of the cathode ray tube 1, and the functional film 4 is fixed by the cathode ray tube fixing mechanism 3 to the display screen of the cathode ray tube 1. It is pressed against the surface 2 of the sticker. As a result, as shown in FIG. 2, the functional film 4 and the surface 2 of the display screen of the cathode ray tube 1 are completely attached.

Next, unnecessary portions of the functional film 4 are cut and removed. In this case, as shown in FIG. 3, after the functional film 4 is pressed and attached to the surface 2 of the display screen of the cathode ray tube 1, the cutting film 8 is used to cut the functional film 4 at a predetermined position.

As described above, in the present embodiment, the adhesive layer 5 of the functional film 4 and the surface 2 of the display screen of the cathode ray tube 1 in a state in which the functional film 4 having the adhesive layer 5 is uniformly tensioned. The functional film 4 is adhered to the surface 2 of the display screen of the cathode ray tube 1 by contacting with, and when the functional film 4 is adhered, a pressing roller is not used unlike the conventional case. , The time required for sticking work can be shortened, and productivity can be improved. Further, since the pressing roller is not used, it is possible to prevent wrinkles, bubbles, etc. from occurring when the functional film is attached to the cathode ray tube.

In the above embodiment, the film holding mechanism 9 moves downward in the state where the functional film 4 is uniformly tensioned and tensioned, and the CRT 1
The functional film 4 is pressed against and pasted on the surface 2 of the display screen of 1. but is not limited to this.
For example, in the process of sticking the functional film 4, the film holding mechanism 9 is fixed and the Braun tube fixing mechanism 3 that fixes the Braun tube 1 is placed on the functional film 4 with the uniform tension applied. Move it, press the surface 2 of the display screen of the cathode ray tube 1 against the functional film 4,
Thereby, the functional film 4 may be attached to the surface 2 of the display screen of the cathode ray tube 1.

Further, in the above-described embodiment, the film holding mechanism 9 moves downward while maintaining the level while the functional film 4 is uniformly pulled and tensioned, and the surface 2 of the display screen of the cathode ray tube 1 is held. The functional film 4 is pressed onto and adhered to, but is not limited to this. For example, as shown in FIG. 5, the film holding mechanism 9 keeps the functional film 4 at a predetermined angle α with the surface 2 of the display screen of the cathode ray tube 1 in a state in which the functional film 4 is uniformly tensioned and tensioned. The cathode-ray tube 1 is brought into contact with one end of the surface 2 of the display screen, and from that state, the other end of the film holding mechanism 9 is moved downward as shown by an arrow B, and the angle α is reduced, while the functional film is formed. It is also possible for 4 to come into full contact with the surface 2 of the display screen of the cathode ray tube 1. In this case, when the functional film 4 is attached, the generation of bubbles can be prevented more completely.

[0018]

According to the present invention, the adhesive layer of the functional film and the surface of the display screen of the cathode ray tube are brought into contact with each other in a state in which the functional film is uniformly tensioned and tensioned,
The functional film is attached to the surface of the display screen of the cathode ray tube, and when the functional film is attached, the pressing roller is not used as in the past, and the attaching work time can be shortened. Productivity can be improved. Further, since the pressing roller is not used, it is possible to prevent wrinkles and bubbles from being generated when the functional film is attached to the cathode ray tube.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a functional film sticking device.

FIG. 2 is a diagram showing a state in which a functional film is attached to the surface of the display screen of a cathode ray tube.

FIG. 3 is a diagram showing a state in which an unnecessary portion of the functional film is cut.

FIG. 4 is a diagram showing another example of a method for attaching a functional film.

FIG. 5 is a diagram showing a conventional method of attaching a functional film.

[Explanation of symbols]

1 ... CRT, 2 ... Display screen surface, 3 ...
・ CRT fixing mechanism, 4, functional film, 5 ...
Adhesive layer, 7a, 7b ... Film sandwiching portion, 8 ... Cutting cutter, 9 ... Film holding mechanism, 10 ... Functional film sticking device, 11 ... Wrinkles, 12 ... Bubbles

Claims (4)

[Claims] 1. A method of adhering a functional film having an adhesive layer on the surface of a display screen of a cathode ray tube, the method comprising applying a uniform tension to the functional film, and the tension to the functional film. A step of contacting the adhesive layer of the functional film with the surface of the display screen of the cathode ray tube in a state of applying, and adhering the functional film to the surface of the display screen of the cathode ray tube. Functional film sticking method. 2. The step of attaching the functional film to the surface of the display screen of the cathode ray tube is characterized in that the functional film and the surface of the display screen of the cathode ray tube are brought into contact in parallel with each other. The method for attaching the functional film according to claim 1. 3. The step of attaching the functional film to the surface of the display screen of the cathode ray tube, wherein the functional film is kept at a predetermined angle with respect to the surface of the display screen of the cathode ray tube. 2. The function according to claim 1, wherein the functional film and the surface of the display screen of the cathode ray tube are brought into contact with each other by making the predetermined angle smaller from the one side of the cathode ray tube. Of sticking a flexible film. 4. A device for sticking a functional film having an adhesive layer on the surface of a display screen of a cathode ray tube, wherein the adhesive layer of the functional film is applied in a state in which the functional film is applied with a uniform tensile tension. A functional film sticking device comprising means for bringing the functional film into contact with the surface of the display screen of the cathode ray tube and sticking the functional film to the surface of the display screen of the cathode ray tube.