Search

KR-20260063734-A - Apparatus for inspecting coating of ultra thin glass

KR20260063734AKR 20260063734 AKR20260063734 AKR 20260063734AKR-20260063734-A

Abstract

The inspection device according to the present invention is a device for inspecting a coating module (500), and the device comprises a stage (100) on which the coating module (500) is placed, a lamp (200) that emits light to the coating module (500), a camera (300) that captures the coating module (500), and a controller (400) that controls the lamp and the camera, wherein the stage (100) is composed of a body (110) and a light-reflecting layer (120) installed on the upper part of the body, and the camera is configured to capture light reflected by the light-reflecting layer (120) of the stage after passing through the coating module (500). The above coating module (500) is composed of a carrier film (510) having a coating space, a thin film glass (UTG, Ultra Thin Glass) placed in the coating space of the carrier film, and a resin (520) filled on the side and top surfaces of the thin film glass.

Inventors

  • 최영주
  • 이관용
  • 김태윤

Assignees

  • 주식회사 지에스아이

Dates

Publication Date
20260507
Application Date
20241031

Claims (5)

  1. As a device for inspecting a coating module (500), The above device is, A stage (100) on which a coating module (500) is placed, and A lamp (200) that emits light through a coating module (500), and It comprises a camera (300) for capturing an image of a coating module (500), and a controller (400) for controlling a lamp and a camera, and An inspection device characterized in that the above stage (100) is composed of a body (110) and a light-reflecting layer (120) installed on the upper part of the body, and the camera is configured to capture light reflected by the light-reflecting layer (120) of the stage after passing through a coating module (500).
  2. In claim 1, The above coating module (500) is, An inspection device characterized by comprising a carrier film (510) having a coating space, a thin film glass (UTG, Ultra Thin Glass) placed in the coating space of the carrier film, and a resin (520) filled on the side and top surfaces of the thin film glass.
  3. In claim 2, The above carrier film (510) is composed of a lower film (511) and an upper film (512) in which an incision (MO) is formed. An inspection device characterized in that an upper film is adhered to the upper part of the lower film, and after adhesion, a coating space (513) is formed in the cut hole (MO).
  4. In claim 3, An inspection device characterized in that a thin film glass (UTG) is placed in the coating space (513) of the carrier film, and a resin (520) is filled into the upper and side portions of the thin film glass in the coating space.
  5. In claim 4, An inspection device characterized in that the above controller (400) is configured to inspect the filling state of the lower portion of the resin in contact with the thin film glass in contact with the resin from an image captured by the camera (300).

Description

Apparatus for inspecting coating of ultra thin glass An embodiment of the present invention relates to an apparatus for inspecting the coating state of a thin film glass. A mobile terminal is equipped with a display panel and a glass film installed on the upper part of the display panel to protect the display panel. Thin-film glass is used for the glass film. A coating layer is formed on the thin-film glass to prevent scratches during use and to prevent image quality degradation caused by foreign substances. Defects in glass films mainly occur easily at the bonding area between the thin film glass and the coating layer. In display panels and glass films used in foldable mobile terminals, the coating layer may separate from the thin film glass due to repeated folding. Before attaching the glass film to the mobile terminal, the condition of the coating layer is inspected to check for defects in the glass film. FIG. 1 is a diagram showing the configuration of a glass film inspection device according to the prior art. A device for inspecting the condition of a conventional glass film comprises a stage (10), a lamp (20), and a camera (30). A lamp (20) is installed on one side of the upper part of the stage (10), and a camera (30) is installed on the other side of the upper part. The lamp (20) illuminates a glass film (50) placed on the upper part of the stage, and the camera (30) detects the condition of the glass film (50). Glass film may cause light scattering in captured images due to surface reflection and diffuse reflection. This may result in the inability to perform accurate quality inspections or cause genuine products to be judged as defective. FIG. 1 is a configuration diagram of a glass film inspection device according to the prior art. FIG. 2 is a perspective view and a plan view of a coating module according to the present invention. FIG. 3 is a perspective view of a carrier film according to the present invention. FIG. 4 is a cross-sectional view of a coating module according to the present invention. Figure 5 is an image showing the inspection location in the coating module. FIG. 6 is a configuration diagram of a thin film glass coating inspection device according to one embodiment of the present invention. Figure 7 shows the path of light propagation by the light-reflecting layer. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of explanation, components illustrated in the drawings may be exaggerated, omitted, or schematically represented. An embodiment according to the present invention relates to an apparatus for inspecting a thin film glass coating module. A coated thin film glass is manufactured using a coating module. The coating module has a structure for manufacturing the coated thin film glass. The coated thin film glass is provided attached to the upper surface of a panel of a portable device and protects the panel from external environments such as scratches and dust. The coating module (500) consists of a carrier film (510) having a coating space, a thin film glass (UTG, Ultra Thin Glass) placed in the coating space of the carrier film, and a resin (520) filled on the side and top surfaces of the thin film glass. In the example, the side and top surfaces of the thin film glass are filled with resin, and then the resin is cured to form a coating layer of the thin film glass with resin. Afterward, the thin film glass having the resin coating layer is separated from the carrier film. FIG. 2 is a perspective view and a plan view of a coating module according to the present invention, and FIG. 3 is a perspective view of a carrier film according to the present invention. The carrier film (510) consists of a lower film (511) and an upper film (512) in which an incision (MO) is formed. The upper film and the lower film are bonded vertically, and the incision in the upper film becomes a coating space. The lower film and the upper film are bonded to form a carrier film, and after bonding, the incision forms a coating space (513). The side of the coating space (513) becomes the cut surface of the upper film, and the bottom of the coating space (513) becomes the upper surface of the lower film. FIG. 4 is a cross-sectional view of a coating module according to the present invention. A thin film glass (UTG) is placed in the coating space (513) of the carrier film (510). The coating space (513) includes a filling space (513-1). The space excluding the thin film glass in the coating space forms a filling space. Resin is filled into the filling space. Here, the coating space (513) refers to the space prior to the placement of the thin film glass (UTG), and the filling space (513-1) refers to the upper and side spaces of the thin film glass (UTG) in the coating space (513). The filling space (513a) is composed of an upper filling space (513-1a) and a side filling space (513-1b). The thin film glass (UTG) has light