US-12626624-B2 - Inspecting apparatus and inspecting method for display device

US12626624B2US 12626624 B2US12626624 B2US 12626624B2US-12626624-B2

Abstract

An inspecting apparatus for a display device including: a loader part into which the display device is inputted, a wet air forming part that generates moisture particle on a surface of the display device, an inspection part that inspects the surface of the display device, and an unloader part that emits the display device to an outside.

Inventors

YONGCHAE IM
Joon-Geol KIM
Heeyeon LEE

Assignees

SAMSUNG DISPLAY CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20231114
Priority Date: 20230214

Claims (18)

1 . An inspecting apparatus for a display device comprising: a loader part into which the display device is inputted; a humidity air forming part which generates moisture particle on a surface of the display device, the humidity air forming part comprising: a first manifold defining a plurality of holes in an upper surface; and a second manifold disposed inside the first manifold and which generates and discharges humidity air; an inspection part which inspects the surface of the display device; and an unloader part which emits the display device to an outside.
2 . The inspecting apparatus of claim 1 , wherein the inspection part includes: a first imaging unit which inspects a front surface of the display device; and a second imaging unit which inspects a side surface of the display device.
3 . The inspecting apparatus of claim 2 , wherein the inspection part further includes: a third imaging unit which inspects the side surface of the display device.
4 . The inspecting apparatus of claim 3 , wherein each of the second imaging unit and the third imaging unit is rotatable in a first direction as an axis.
5 . The inspecting apparatus of claim 4 , wherein each of the second imaging unit and the third imaging unit is movable in a second direction crossing the first direction.
6 . The inspecting apparatus of claim 1 , further comprising: a first heater part disposed inside the second manifold and heating the second manifold; and a second heater part disposed inside the second manifold and heating a slit attached to the second manifold.
7 . The inspecting apparatus of claim 1 , wherein the second manifold receives distilled water through a tube penetrating one hole of the plurality of holes.
8 . The inspecting apparatus of claim 1 , further comprising: a moving part which moves the display device from the loader part to the unloader part in a first direction.
9 . The inspecting apparatus of claim 8 , wherein through the moving part, the display device moves from the loader part to the unloader part on a same plane.
10 . The inspecting apparatus of claim 1 , wherein the humidity air forming part and the inspection part are adjacent to each other.
11 . The inspecting apparatus of claim 1 , further comprising: a removing part which removes the moisture particle generated on the surface of the display device.
12 . The inspecting apparatus of claim 11 , wherein the removing part includes an air blow.
13 . An inspecting method for a display device, the method comprising: inputting the display device into a loader part; moving the display device along a first direction; providing humidity air to a surface of the display device; and inspecting the display device, wherein the inspecting the display device further includes: measuring a contact angle between moisture particle generated on the surface of the display device and the surface of the display device.
14 . The method of claim 13 , wherein the providing the humidity air to the surface of the display device includes: heating water and producing steam; mixing air drier than the humidity air with the steam and producing the humidity air; and providing the humidity air to the surface of the display device.
15 . The method of claim 14 , wherein the water is distilled water.
16 . The method of claim 13 , wherein the inspecting the display device includes: inspecting a front surface of the display device through a first imaging unit; and inspecting a side surface of the display device through a second imaging unit and a third imaging unit.
17 . The method of claim 16 , wherein each of the second imaging unit and the third imaging unit is rotatable in the first direction as an axis.
18 . The method of claim 17 , wherein each of the second imaging unit and the third imaging unit is movable in a second direction crossing the first direction.

Description

This application claims priority to Korean Patent Application No. 10-2023-0019603, filed on Feb. 14, 2023, and all the benefits accruing therefrom under 35 U.S.C. § 119, the content of which in its entirety is herein incorporated by reference. BACKGROUND 1. Field Embodiments relate to an inspection apparatus and an inspection method for a display device. 2. Description of the Related Art A display device displays an image for providing visual information to a user. Among display devices, an organic light-emitting diode display is attracting attention. An anti-fingerprint coating layer may be attached to a surface of the display device. An inspecting apparatus may be used to remove defective products in a production process, an assembly process, or the like of the display device. The inspecting apparatus may check a shape of an inspection body by receiving light reflected from the inspection body. In addition, the inspecting apparatus may check whether the anti-fingerprint coating layer is well attached to the surface of the display device using the inspecting apparatus. SUMMARY Embodiments provide an inspecting apparatus for a display device with improved quality. Embodiments provide an inspecting method for the display device. An inspecting apparatus for a display device in an embodiment includes a loader part into which the display device is inputted, a wet air forming part that generates moisture particle on a surface of the display device, an inspection part that inspects the surface of the display device, and an unloader part that emits the display device to an outside. In an embodiment, the inspection part may include a first imaging unit that inspects a front surface of the display device and a second imaging unit that inspects a side surface of the display device. In an embodiment, the inspection part may further include a third imaging unit that inspects the side surface of the display device. In an embodiment, each of the second imaging unit and the third imaging unit may be rotatable in a first direction as an axis. In an embodiment, each of the second imaging unit and the third imaging unit may be movable in a second direction crossing the first direction. In an embodiment, the wet air forming part may include a first manifold defining a plurality of holes in the surface and a second manifold disposed inside the first manifold and that generates and discharges relatively high humidity air. In an embodiment, the inspecting apparatus may further include a first heater part disposed inside the second manifold and heating the second manifold and a second heater part disposed inside the second manifold and heating a slit attached to the second manifold. In an embodiment, the second manifold may receive distilled water through a tube penetrating one hole of the plurality of holes. In an embodiment, the inspecting apparatus may further include a moving part that moves the display device from the loader part to the unloader part in a first direction. In an embodiment, wherein through the moving part, the display device may move from the loader part to the unloader part on a same plane. In an embodiment, the wet air forming part and the inspection part may be adjacent to each other. In an embodiment, the inspecting apparatus may further include a removing part that removes the moisture particle generated on the surface of the display device. In an embodiment, the removing part may include an air blow. An inspecting method for a display device in an embodiment includes inputting the display device into a loader part, moving the display device along a first direction, providing relatively high humidity air to a surface of the display device, and inspecting the display device. In an embodiment, the providing the relatively high humidity air to the surface of the display device may include heating water and producing steam, mixing dry air with the steam and producing the relatively high humidity air, and providing the relatively high humidity air to the surface of the display device. In an embodiment, the water may be distilled water. In an embodiment, the inspecting the display device may include inspecting a front surface of the display device through a first imaging unit and inspecting a side surface of the display device through a second imaging unit and a third imaging unit. In an embodiment, the inspecting the display device may further include measuring a contact angle between moisture particle generated on the surface of the display device and the surface of the display device. In an embodiment, each of the second imaging unit and the third imaging unit may be rotatable in the first direction as an axis. In an embodiment, each of the second imaging unit and the third imaging unit may be movable in a second direction crossing the first direction. An inspecting apparatus for a display device in an embodiment includes a loader part into which a display device is inputted, a wet air forming part that gen