Optical film inspection equipment

Abstract

The utility model relates to optical film inspection equipment, which comprises an unwinding part, a detection part and a control part, the inspection part comprises a camera and a light source, and the light source is arranged on one side of the camera; the synthesis part is provided with a protective film; the control box is used for controlling the camera and the light source to inspect the optical film of the unwinding part, laminating the inspected optical film with the protective film arranged on the synthesis part, and controlling the winding part to perform winding; the light source is arranged on one side of the camera, the illumination angle is set to be 150-170 degrees or 30-50 degrees, the optical film with release scratches can be reliably inspected through side irradiation, and the rate of finished products is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially relates to an optical film inspection equipment. BACKGROUND

[0002] The existing optical film is wound after production, but the protective film before winding is separated from the printing film in the generation process, which may cause release scratches, and the produced optical film needs to be detected to remove unqualified optical film with surface defects or scratches to reduce the unqualified rate of the optical film and improve the quality of the optical film.

[0003] The existing inspection equipment sets up a camera and a light source, the camera and the light source are vertically arranged, the optical film is placed between the camera and the light source, and the light source is tested by the camera at the same time; but due to the angle of the light source, the release scratch is not easy to test, and the overall yield of the optical film cannot be effectively improved. UTILITY MODEL CONTENT

[0004] The utility model aims at the shortage of prior art and provides an optical film inspection equipment.

[0005] The utility model is realized by adopting the following technical scheme:

[0006] An optical film inspection equipment, characterized in that it comprises:

[0007] A winding-off part for placing the optical film;

[0008] An inspection part comprising a camera and a light source, wherein the light source is arranged on one side of the camera;

[0009] A synthesis part for pressing and pasting the protective film on the upper and lower sides of the optical film;

[0010] A winding part for winding the optical film with the pasted protective film.

[0011] Further, the setting angle of the optical film to be tested and the light source is 150°-170° or 30°-50°.

[0012] Further, the camera and the optical film are 90°.

[0013] Further, the synthesis part comprises a primary synthesis wheel, the protective film is divided into upper and lower protective films, and the upper and lower protective films are pasted to the upper and lower surfaces of the tested optical film respectively through the primary synthesis wheel.

[0014] Further, the synthesis part further comprises a secondary synthesis wheel for secondary pasting of the optical film after pasting the protective film, and the optical film after secondary pasting is wound through the winding part.

[0015] Furthermore, the inspection equipment also includes a control box, which connects to the camera and light source of the control unit, the winding unit, and the inspection unit.

[0016] Furthermore, the optical film is transferred between the unwinding section, the inspection section, the synthesis section, and the winding section via a conveying device.

[0017] Furthermore, the conveying device is a conveyor wheel.

[0018] Furthermore, the conveying device is a conveyor wheel.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] By placing the light source on one side of the camera and setting the illumination angle to 150°–170° or 30°–50°, side illumination can reliably inspect optical films with release scratches, thereby improving the yield rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a comparison diagram of the effects of the light source and the sample to be tested before and after modification.

[0023] Figure Labels

[0024] 1. Optical film; 2. Camera; 3. Conveyor wheel; 4. Laminating wheel; 5. Protective film; 6. Composite wheel; 7. Rewinding section; 8. Control box; 9. Light source. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0026] like Figure 1 As shown, an optical film inspection device includes:

[0027] An unwinding section, on which an optical film 1 is placed;

[0028] The inspection department includes a camera 2 and a light source 9, with the light source 9 located on one side of the camera 2;

[0029] The assembly section is used to press the protective film 5 onto the upper and lower sides of the optical film 1;

[0030] The winding section 7 is used to wind up the optical film 1 that has a protective film applied to it.

[0031] The inspection equipment also includes a control box 8, which connects to the camera 2 and light source 9 of the control synthesis unit, the winding unit 7 and the inspection unit.

[0032] Preferably, the inspection equipment further includes a control box 8, which controls the camera 2 and the light source 9 to inspect the optical film 1 in the unwinding section, applies the protective film 5 provided in the synthesis section to the inspected optical film 1, and controls the winding section 7 to wind up the film.

[0033] like Figure 2 As shown, before the modification, the light source 9 was positioned directly below the product to be inspected, and the camera 2 inspected it by transmitting light, which had limited inspection effectiveness. After the modification, the light source 9 was positioned to illuminate the product to be inspected from the side, increasing the monitoring range of the camera 2, enhancing the anomaly detection effect, and making it less likely for defective products to leak out.

[0034] Preferably, the angle between the optical film 1 to be inspected and the light source 9 is 150° to 170° or 30° to 50°. The camera 2 is at a 90° angle to the optical film 1.

[0035] The synthesis unit includes a primary synthesis wheel 4, and the protective film 5 is divided into upper and lower protective films. The upper and lower protective films are respectively attached to the upper and lower surfaces of the inspected optical film 1 by the primary synthesis wheel 4.

[0036] The bonding section also includes a secondary bonding wheel 6 for bonding the optical film 1 after the protective film has been bonded. The secondary bonding wheel 6 is used for a secondary bonding process to prevent defects from the first bonding. The optical film 1 after secondary bonding is wound up by the winding section 7.

[0037] The optical film 1 is transferred between the unwinding section, inspection section, synthesis section and rewinding section 7 via a conveying device.

[0038] The conveying device is a conveyor wheel 3.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An optical film inspection device, characterized in that, include: The unwinding section contains an optical film (1); The inspection department includes a camera (2) and a light source (9), wherein the light source (9) is located on one side of the camera (2); The assembly section is used to press the protective film (5) onto the upper and lower sides of the optical film (1); The winding section (7) is used to wind up the optical film (1) with the protective film applied.

2. The optical film inspection equipment according to claim 1, characterized in that: The angle between the optical film (1) to be tested and the light source (9) is 150° to 170° or 30° to 50°.

3. The optical film inspection equipment according to claim 1, characterized in that: The camera (2) is at a 90° angle to the optical film (1).

4. The optical film inspection equipment according to claim 1, characterized in that: The synthesis unit includes a primary synthesis wheel (4), and the protective film (5) is divided into upper and lower protective films. The upper and lower protective films are respectively attached to the upper and lower surfaces of the inspected optical film (1) by the primary synthesis wheel (4).

5. The optical film inspection equipment according to claim 4, characterized in that: The synthesis section also includes a secondary synthesis wheel (6) for secondary bonding of the optical film (1) after the protective film is bonded, and the optical film (1) after secondary bonding is wound up by the winding section (7).

6. The optical film inspection equipment according to claim 4, characterized in that: The inspection equipment also includes a control box (8), which connects the camera (2) and light source (9) of the control synthesis unit, the winding unit (7) and the inspection unit.

7. The optical film inspection equipment according to claim 1, characterized in that: The optical film (1) is transferred between the unwinding section, inspection section, synthesis section and winding section (7) via a conveying device.

8. The optical film inspection equipment according to claim 7, characterized in that: The conveying device is a conveyor wheel (3).

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