KR102617891B1 - Apparatus and method for inspecting display pannel - Google Patents

Abstract

The present invention relates to a display panel inspection device and method. The display panel inspection device according to an embodiment of the present invention includes a carrier for loading and transporting a display panel, extending in a first direction, and the carrier includes: A bypass line, which is movable, and a plurality of inspection areas extending in a first direction, adjacent to the bypass line and arranged side by side with the bypass line in between, and inspecting the display panel, and between the plurality of inspection areas. It includes a first inspection line and a second inspection line, including a plurality of transfer areas disposed in, whereby the carrier loaded with the display panel moves along the bypass line and moves to an adjacent inspection line to inspect the display panel. can be performed.

Description

Display panel inspection device and method {APPARATUS AND METHOD FOR INSPECTING DISPLAY PANNEL}

The present invention relates to a display panel inspection device and method.

As we enter the full-fledged information age, the field of display devices that visually display electrical information signals is rapidly developing. Accordingly, various display devices are being developed and sold. For example, liquid crystal display device (LCD), field emission display device (FED), electrophoretic display device (EPD), electro-wetting display device There are display devices such as display device (EWD), organic light emitting display device (OLED), and quantum dot display device (QD).

The display device includes a display panel on which display elements and driving elements are arranged. During the manufacturing process of the display device, the display panel may be inspected to determine whether it operates normally. A display panel determined to be normal through this inspection process can be transferred to the next step of the display device manufacturing process.

The problem to be solved by the present invention is to load the display panel on a carrier that can load and transport the display panel, move the carriers loaded with the display panel sequentially along the bypass line, and inspect the inspection line arranged in parallel with the bypass line. The inspection of the display panels is performed by moving to the bypass line, and after the inspection, the inspection of the display panels can be performed within one device by moving back to the bypass line. As the size of the display panel increases, the volume occupied by the inspection device increases. The object is to provide a display panel inspection device and method in which this is reduced and contact between the display panel and the inspection device is improved.

A display panel inspection device according to an embodiment of the present invention includes a carrier for loading and transporting a display panel, a bypass line extending in a first direction and allowing the carrier to move, and a first line. A second device extends in one direction, is adjacent to a bypass line and is arranged side by side with the bypass line in between, and includes a plurality of inspection areas for inspecting the display panel and a plurality of transfer areas disposed between the plurality of inspection areas. It may include one inspection line and a second inspection line.

According to another feature of the present invention, the plurality of inspection areas are disposed on each of the first inspection line and the second inspection line with a bypass line in between, and include a plurality of first inspection areas that perform the same first inspection. can do.

According to another feature of the present invention, some of the plurality of inspection areas may be arranged adjacent to each other except for the plurality of transfer areas in the first inspection line or the second inspection line.

According to another feature of the present invention, some of the plurality of inspection areas arranged adjacent to each other, excluding the plurality of transfer areas, include a plurality of first inspection areas arranged adjacently, and the carrier is a plurality of first inspection areas. The regions are passed sequentially, and a first inspection of the display panel may be performed in one of the plurality of first inspection regions.

According to another feature of the present invention, some of the plurality of inspection areas disposed adjacent to each other, excluding the plurality of transfer areas, include a first inspection area and a second inspection area adjacent to the first inspection area, and the carrier sequentially passes through the first inspection area and the second inspection area, and a first inspection of the display panel may be performed in the first inspection area, and a second inspection of the display panel may be performed in the second inspection area.

According to another feature of the present invention, some of the plurality of inspection areas may be arranged adjacent to each other in the first inspection line or the second inspection line with the transfer area interposed therebetween.

According to another feature of the present invention, some of the plurality of inspection areas arranged adjacent to each other with the transfer area in between include a plurality of first inspection areas arranged adjacent to each other with the transfer area in between, and the carrier sequentially passes through a plurality of first inspection areas and a transfer area disposed between the plurality of first inspection areas, and a first inspection of the display panel may be performed in one of the plurality of first inspection areas.

According to another feature of the present invention, some of the plurality of inspection areas arranged adjacent to each other with the transfer area in between include a first inspection area and a second inspection area arranged adjacent to each other with the transfer area in between. The carrier sequentially passes through the first inspection area, the transfer area disposed between the first inspection area and the second inspection area, and the second inspection area, and the first inspection of the display panel is performed in the first inspection area, A second inspection of the display panel may be performed in the second inspection area.

According to another feature of the present invention, the carrier may be movable only between the bypass line and the transfer area, excluding between the bypass line and the inspection area.

According to another feature of the present invention, the carrier may be moved in only one direction between the transfer area and the inspection area.

According to another feature of the present invention, the display panel may further include a return line extending from a lower part of the bypass line in the first direction and on which the carrier on which the display panel is unloaded can move.

According to another feature of the present invention, the first inspection line and the second inspection line include a film detachment area for attaching and detaching a film to a display panel, a bending area for bending the display panel, and a module attachment area for attaching a module to the display panel. It may contain at least one more.

A display panel inspection method according to an embodiment of the present invention includes moving a carrier loaded with a display panel to a bypass line extending in a first direction, extending in the first direction and adjacent to the bypass line, A step of moving the carrier to one of the first inspection line and the second inspection line, which are arranged in parallel with each other and include a plurality of inspection areas for inspecting the display panel and a plurality of transfer areas arranged between the plurality of inspection areas. , inspecting the display panel in at least one of the plurality of inspection areas, and moving the carrier from one of the first inspection line and the second inspection line to the bypass line.

According to another feature of the present invention, the step of moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas, and inspecting the display panel. The performed steps include moving the carrier from the first transfer area to the first inspection area, so that a first inspection of the display panel is performed, and moving the carrier from the first inspection area to the second transfer area; , moving the carrier from one of the first inspection line and the second inspection line to the bypass line may include moving the carrier from the second transfer area to the bypass line.

According to another feature of the present invention, the step of moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas, and inspecting the display panel. The step in which the carrier is sequentially moved from the first transfer area to a first inspection area and a second inspection area arranged adjacent to each other, and a first inspection of the display panel is performed in the first inspection area, and a second inspection area is performed. A second inspection of the display panel is performed in the inspection area, and moving from the second inspection area to a second transfer area, wherein the carrier is moved from one of the first inspection line and the second inspection line to the bypass line. The moving step may include moving the carrier from the second transfer area to the bypass line.

According to another feature of the present invention, a transfer area is disposed between the first inspection area and the second inspection area, and the carrier passes through the transfer area disposed between the first inspection area and the second inspection area to perform the first inspection. You can move from the area to the second inspection area.

According to another feature of the present invention, the first inspection area may be adjacent to the second inspection area except for the transfer area.

According to another feature of the present invention, the step of moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas, and inspecting the display panel. The step in which the carrier is sequentially moved from the first transfer area to each of a plurality of first inspection areas arranged adjacent to each other, and a first inspection of the display panel is performed in one of the plurality of first inspection areas. moving the carrier from the plurality of first inspection areas to the second transfer area, wherein moving the carrier from one of the first inspection line and the second inspection line to the bypass line comprises: moving the carrier from one of the first inspection line and the second inspection line to the bypass line; It may include moving from the transfer area to the bypass line.

According to another feature of the present invention, a transfer area is disposed between a plurality of first inspection areas arranged adjacent to each other, and when the carrier moves to each of the plurality of first inspection areas in turn, the plurality of first inspection areas It can be moved through the transfer area arranged in between.

According to another feature of the present invention, a plurality of first inspection areas arranged adjacent to each other may be arranged adjacent to each other except for a transfer area between them.

According to another feature of the present invention, the method may further include moving the carrier on which the display panel is unloaded along a return line extending in the first direction from a lower portion of the bypass line.

In the present invention, the display panel can be inspected by moving the carrier loaded with the display panel along a bypass line and moving to an adjacent inspection line.

According to the present invention, even if the size of the display panel increases, the amount of increase in the volume of the display panel inspection device can be reduced.

In the present invention, in the entire inspection process of a display panel using a display panel inspection device, one contact is performed between the display panel and the carrier, so that multiple contacts between the display panel and the inspection device may not be performed, so that the display panel Contact accuracy between the device and the inspection device can be improved.

1 is a top view of a display panel inspection device according to an embodiment of the present invention.
Figure 2 is a flowchart for explaining a display panel inspection method according to an embodiment of the present invention.
3A to 3E are top views for explaining a display panel inspection device and method according to an embodiment of the present invention.
Figure 4 is a flowchart for explaining a display panel inspection method according to another embodiment of the present invention.
5A to 5D are top views for explaining a display panel inspection device and method according to another embodiment of the present invention.
Figure 6 is a flowchart for explaining a display panel inspection method according to another embodiment of the present invention.
7 is a top view for explaining a display panel inspection device and method according to another embodiment of the present invention.
Figure 8 is a top view for explaining a display panel inspection device and method according to another embodiment of the present invention.
9 is a side view for explaining a display panel inspection apparatus and method according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Like reference numerals refer to like elements throughout the specification. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

When an element or layer is referred to as “on” another element or layer, it includes all cases where the other layer or other element is interposed or directly on top of the other element.

Although first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present invention.

Like reference numerals refer to like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the components shown.

Each feature of the various embodiments of the present invention can be partially or fully combined or combined with each other, and as can be fully understood by those skilled in the art, various technical interconnections and operations are possible, and each embodiment may be implemented independently of each other. It may be possible to conduct them together due to a related relationship.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the attached drawings.

1 is a top view of a display panel inspection device according to an embodiment of the present invention.

Referring to FIG. 1 , the display panel inspection device 100 is a device that inspects whether the display panel 200 is operating normally. For example, the display panel inspection device 100 determines whether a plurality of pixels included in the display panel 200 emit light with normal luminance and whether electrical signals are normally transmitted to a plurality of wires included in the display panel 200. When the display panel includes a touch detection circuit, it is possible to check whether the touch detection circuit is operating normally and whether electrical signals are normally transmitted from pads connected to a plurality of wires. The display panel inspection device 100 includes a bypass line (BPL), an inspection line (IL), and a carrier (C).

The bypass line (BPL) is a path along which the carrier (C) can move. The bypass line BPL may extend in a first direction across the center of the top view of the display panel inspection device 100. The carrier C may flow into one end of the bypass line BPL, move in the first direction, and flow out of the other end of the bypass line BPL. On the bypass line (BPL), the carrier (C) can only move in the first direction and may not be able to move in the opposite direction. However, the present invention is not limited thereto, and the carrier C may be able to move in a direction opposite to the first direction.

The inspection line IL is a line where various inspections of the display panel 200 are performed. The inspection line IL includes a first inspection line IL1 and a second inspection line IL2. The first inspection line IL1 and the second inspection line IL2 extend in the first direction and are disposed adjacent to the bypass line BPL. A bypass line (BPL) is disposed between the first inspection line (IL1) and the second inspection line (IL2), and the first inspection line (IL1), the bypass line (BPL), and the second inspection line (IL2) are They can be placed side by side one after another.

Each of the first inspection line IL1 and the second inspection line IL2 includes a plurality of inspection areas (IA) and a plurality of transfer areas (TA). The plurality of inspection areas (IA) are areas where inspection of the display panel 200 loaded on the carrier C is performed. The plurality of inspection areas (IA) may include a first inspection area (IA1), a second inspection area (IA2), and a third inspection area (IA3), and different inspections are performed in each inspection area (IA). It can be. For example, a first inspection may be performed in the first inspection area (IA1), a second inspection may be performed in the second inspection area (IA2), and a third inspection may be performed in the third inspection area (IA3). At least one of a first test, a second test, and a third test may be performed on the display panel 200.

Each of the first inspection line IL1 and the second inspection line IL2 includes a first inspection area IA1, a second inspection area IA2, and a third inspection area IA3 arranged sequentially along the first direction. It can be included. At this time, the first inspection area (IA1) disposed on the first inspection line (IL1) and the second inspection area (IA2) disposed on the second inspection line (IL2) face each other with the bypass line (BPL) in between. Can be positioned to view. That is, the inspection area IA disposed on each of the first inspection line IL1 and the second inspection line IL2 with the bypass line BPL in between may be an area where the same inspection is performed. The second inspection areas (IA2) for performing the second inspection and the third inspection areas (IA3) for performing the third inspection also have a first inspection line (IL1) and a second inspection line (IL1) with the bypass line (BPL) therebetween. They may be arranged to face each other in each of the inspection lines (IL2).

The plurality of transfer areas (TA) are areas where the carrier (C) can be transferred between the inspection areas (IA). A plurality of transfer areas (TA) may be arranged between a plurality of inspection areas (IA). The plurality of inspection areas (IA) may not be arranged directly adjacent to each other in one inspection line (IL), but may be arranged with the transfer area (TA) therebetween. For example, the plurality of transfer areas TA may include first to fourth transfer areas TA1, TA2, TA3, and TA4. The plurality of inspection areas (IA) and the plurality of transfer areas (TA) include a first transfer area (TA1), a first inspection area (IA1), a second transfer area (TA2), a second inspection area (IA2), and a first transfer area (TA1). The third transfer area TA3, the third inspection area IA3, and the fourth transfer area TA4 may be arranged along the first direction in that order.

The carrier C is configured to load the display panel 200 and transport the display panel 200 within the display panel inspection device 100. The display panel 200 may be seated on the carrier C by a robot arm, and the contact terminal of the carrier C and the contact terminal of the display panel 200 may contact each other to be attached to the carrier C. can be loaded. Additionally, the display panel 200 may be transported by the carrier C, and one or more inspections may be performed on the display panel 200. The carrier C may be moved, for example, by a linear motion system (LMS), a linear transfer system (LTS), or the like. The display panel 200 for which all inspections have been completed may be unloaded from the carrier C by the robot arm and transferred to the next step of the display device manufacturing process.

Specifically, the carrier C may include a wireless communication unit, a wireless charging unit, and a pneumatic holding unit. The wireless communication unit of the carrier C can communicate wirelessly with the outside using, for example, wifi, etc., and receives information about the inspection to be performed on the display panel 200 loaded on the carrier C, and displays the display panel 200. (200) test results can be delivered.

The wireless charging unit of the carrier C may be wirelessly charged on the first inspection line IL1 or the second inspection line IL2. A device capable of wirelessly charging the carrier C may be disposed in each of the inspection area IA and the transfer area TA of the first inspection line IL1 or the second inspection line IL2, and the carrier C Can be wirelessly charged on the inspection area (IA) and transfer area (TA). Accordingly, the carrier C can be automatically wirelessly charged while passing through the inspection line IL, and the separate time required to charge the carrier C can be reduced.

The pneumatic holding part of the carrier C may generate vacuum or air pressure to adsorb the display panel 200 loaded on the carrier C to the carrier C. The display panel 200 can be firmly coupled to the carrier C by the adsorption force of the pneumatic holding part, and can be stably loaded on the carrier C by maintaining contact between terminals while the inspection process is performed.

The carrier (C) moves along the bypass line (BPL), and when an inspection is to be performed on the display panel 200, it moves to the inspection line (IL) including the corresponding inspection area (IA) and moves to the inspection area (IA). An inspection of the display panel 200 may be performed. And, after the test is performed, the carrier (C) can move back to the bypass line (BPL). At this time, when the carrier (C) moves between the bypass line (BPL) and the inspection line (IL), the carrier (C) moves along the bypass line (BPL) except between the bypass line (BPL) and the inspection area (IA). It may be possible to move only between and transfer area (TA). In other words, the carrier (C) cannot move between the bypass line (BPL) and the inspection area (IA), and in order for the carrier (C) to move to the desired inspection area (IA), it must move from the bypass line (BPL) to the inspection area. (IA) It may be necessary to move to the transfer area (TA) located at the front end, and then move from the transfer area (TA) to the inspection area (IA). And, after the inspection is performed in the inspection area (IA), the carrier (C) cannot move from the inspection area (IA) to the bypass line (BPL), and the transfer area (TA) disposed at the rear of the inspection area (IA) It may be necessary to move to and from the transfer area (TA) to the bypass line (BPL).

In this way, there may be a movement direction of the carrier C in the first direction in the inspection line IL. The movement of the carrier (C) between the bypass line (BPL) and the inspection area (IA) may be restricted, and the movement of the carrier (C) between the bypass line (BPL) and the inspection line (IL) may be restricted to the transfer area ( This can only be done through TA). By limiting the movement of the carrier C between the bypass line BPL and the inspection line IL, the direction of movement of the carrier C in the inspection area IA can be set, and a plurality of carriers C ) If the inspection is performed in the same inspection area (IA) in succession, movement between carriers (C) can be performed smoothly. A detailed description of the movement of the carrier C and the inspection of the display panel 200 will be described later with reference to FIGS. 2 to 3E.

The display panel inspection device 100 may include a robot arm (not shown). The robot-arm can load the display panel 200 onto the carrier C so that the contact terminals of the carrier C and the contact terminals of the display panel 200 can properly contact each other. The carrier (C) in contact with the display panel 200 is a carrier ( C) and the inspection area (IA) can be in contact. Accordingly, while the display panel 200 passes through the display panel inspection device 100 and one or more inspections are performed, the number of contacts between the display panel 200 and the display panel inspection device 100 can be reduced to once. , Contact accuracy can be improved compared to the case of contacting multiple times.

Figure 2 is a flowchart for explaining a display panel inspection method according to an embodiment of the present invention. 3A to 3E are top views for explaining a display panel inspection device and method according to an embodiment of the present invention. 3A to 3E illustrate a case in which a first inspection is performed on the display panel 200 through the first inspection area IA1 of the second inspection line IL2 in the display panel inspection device 100 of FIG. 1. It is a drawing. For convenience of explanation, description will be made with reference to FIG. 1.

First, referring to FIGS. 2 and 3A, the carrier C on which the display panel 200 is loaded moves on the bypass line BPL (S110). As shown in FIG. 1, the carrier C disposed at one end of the bypass line BPL may move onto the bypass line BPL.

Next, referring to FIG. 3B, the carrier C moves to the inspection line IL including a plurality of inspection areas IA and a plurality of transfer areas TA (S120). When a first inspection is to be performed on the display panel 200 loaded on the carrier C, the carrier C is connected to one of the first inspection line IL1 and the second inspection line IL2. It can move to the first transfer area (TA1). For example, as shown in FIG. 3B, the carrier C may move to the first transfer area TA1 of the second inspection line IL2.

Next, referring to FIG. 3C, the carrier C moves to the inspection area IA. The carrier C, which has moved to the first transfer area TA1, moves to the first inspection area IA1 of the second inspection line IL2. As described above, the carrier C is limited in its movement between the inspection area IA and the bypass line BPL, and may only be able to move between the bypass line BPL and the transfer area TA. Accordingly, in order to move to the inspection area (IA), the carrier (C) can move to the inspection area (IA) through the transfer area (TA) disposed in front of the inspection area (IA). For example, in order to move to the first inspection area (IA1), the carrier (C) moves from the bypass line (BPL) to the first transfer area (TA1), and moves from the first transfer area (TA1) to the first inspection area. You can move to (IA1).

Next, the display panel 200 is inspected in the first inspection area IA1, which is one of the plurality of inspection areas IA (S130). After the carrier C moves to the first inspection area IA1, a first inspection may be performed on the display panel 200 loaded on the carrier C.

Next, referring to FIG. 3D, the carrier C moves to the transfer area TA. When the first inspection of the display panel 200 is completed, the carrier C moves from the first inspection area IA1 to the second transfer area TA2. In this way, the carrier C passing through the first inspection area IA1 moves sequentially through the first transfer area TA1, the first inspection area IA1, and the second transfer area TA2, and has a directionality in the first direction. This can be moved into existence.

Next, referring to FIG. 3E, the carrier C moves from the inspection line IL to the bypass line BPL (S140). The carrier C that has moved to the second transfer area TA2 may move to the bypass line BPL or the second inspection area IA2 depending on whether the second inspection is to be performed. If the second inspection is not required, the carrier C may move from the second transfer area TA2 to the bypass line BPL. A detailed description of the case in which the second inspection must be performed on the display panel 200 will be described later with reference to FIGS. 4 to 5D.

Subsequently, the carrier C may move in the first direction along the bypass line BPL and move to the other end of the bypass line BPL. If a third inspection is to be performed on the display panel 200 loaded on the carrier (C), the carrier (C) is a third transfer area disposed in front of the third inspection area (IA3) in the bypass line (BPL). (TA3) and from the third transfer area (TA3) to the third inspection area (IA3), a third inspection may be performed on the display panel 200. After the third inspection is performed, the carrier (C) moves to the fourth transfer area (TA4) disposed behind the third inspection area (IA3), and moves from the fourth transfer area (TA4) to the bypass line (BPL). You can. However, unlike this, when the third inspection is not performed on the display panel 200, as shown in FIG. 3E, the carrier C moves from the second transfer area TA2 to the bypass line BPL, and the carrier C moves from the second transfer area TA2 to the bypass line BPL. It may move in a first direction along the pass line (BPL) and move to the other end of the bypass line (BPL).

Subsequently, the display panel 200 loaded on the carrier C may be unloaded by the robot arm. The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

The display panel inspection device 100 and method according to an embodiment of the present invention include a bypass line (BPL), a first inspection line (IL1), and a second inspection line (IL2), and a carrier (C ) moves in the first direction along the bypass line (BPL) and, if inspection is necessary, may move to the transfer area (TA) of the inspection line (IL). In order to perform the relevant inspection, the carrier (C) can pass through the inspection area (IA) through the transfer areas (TA) arranged at the front and rear ends of the inspection area (IA), and the transfer area (TA) arranged at the rear end. It can be moved back to the bypass line (BPL). In this way, the movement between the bypass line (BPL) and the inspection area (IA) is limited, and the carrier (C), which has a directionality in the first direction in the inspection line (IL), can be moved. If movement is made between the inspection area (IA) and the bypass line (BPL), for example, the carrier (C) and the first inspection area (C) that want to move from the bypass line (BPL) to the first inspection area (IA1) Carriers C trying to move from the area IA1 to the bypass line BPL may collide with each other, and to prevent such collisions, it may take more time for the carriers C to move. Therefore, in the case of the display panel inspection device 100 and method according to an embodiment of the present invention, a plurality of carriers C moves inside one display panel inspection device 100 and the display panels 200 are inspected. Even in this case, smooth movement of the carrier C can be achieved, and the time required to complete the inspection of a certain number of display panels 200 can be reduced.

In addition, in the case of the display panel inspection device 100 and method according to an embodiment of the present invention, compared to a turn table type inspection device, inspection can be selectively performed among a plurality of inspections, and the display Even when the size of the panel 200 increases, the amount of increase in the volume of the inspection device can be reduced. Specifically, a turntable type inspection device is an inspection device in which a plurality of inspection areas are placed on one turn table, the display panel moves on the turn table, passes through all of the plurality of inspection areas, and different inspections are performed. You can. In the case of the display panel inspection device 100 according to an embodiment of the present invention, an inspection area (IA) to be performed on the display panel 200 from among a plurality of inspection areas (IA) may be selected, and thus, flexibly. The type of inspection of the display panel 200 can be adjusted. Additionally, when the size of the display panel 200 increases, the size of the inspection area IA may need to be increased, and in the case of the display panel inspection device 100 according to an embodiment of the present invention, the circumference of the turn table Unlike a turntable-type inspection device that requires an increase, only the width of the inspection line (IL) can be increased. Accordingly, the amount of increase in volume of the display panel inspection device 100 can be reduced.

Additionally, in the case of the display panel inspection device 100 and method according to an embodiment of the present invention, compared to a sliding type inspection device, the contact accuracy between the display panel 200 and the display panel inspection device 100 is improved. This can be improved. In the case of a sliding type inspection device, the display panel moves along the sliding line, and a plurality of carriers installed in each of the plurality of inspection parts formed on the side of the sliding line and the display panel make a plurality of contacts, so that the display panel is connected to the plurality of inspection parts. inspection can be performed. In this case, as a plurality of contacts are made, contact accuracy between the display panel and the inspection device may be reduced, and proper inspection of the display panel may not be performed. In contrast, in the case of the display panel inspection apparatus 100 and method according to an embodiment of the present invention, one contact is performed between the carrier C and the display panel 200, and the carrier C is connected to the bypass line. A plurality of inspections may be performed while moving along the (BPL) and passing through a plurality of inspection areas (IA) of the inspection line (IL). Accordingly, the accuracy of contact with the display panel 200 can be improved.

Figure 4 is a flowchart for explaining a display panel inspection method according to another embodiment of the present invention. 5A to 5D are top views for explaining a display panel inspection device and method according to another embodiment of the present invention. Compared to the display panel inspection method of FIGS. 1 to 3E, the display panel inspection method of FIGS. 4 to 5D involves inspecting the display panel 200 through two adjacent inspection areas (IA) on one inspection line (IL). Since other tests are substantially the same except that they are performed differently, redundant description will be omitted.

First, referring to FIG. 4, the carrier C on which the display panel 200 is loaded moves on the bypass line BPL (S110). Next, the carrier C moves to the first transfer area TA1 of the second inspection line IL2 among the plurality of transfer areas TA (S220). Since these steps (S110, S220) are substantially the same as the steps (S110, S120) described in FIGS. 2 to 3E, duplicate descriptions will be omitted.

Next, referring to FIGS. 5A and 5B, the carrier C sequentially moves through the first inspection area IA1 and the second inspection area IA2 arranged adjacently in the first transfer area TA1, and The first inspection and the second inspection of the display panel 200 are performed in each of the first inspection area (IA1) and the second inspection area (IA2) (S230). Specifically, the carrier C moves from the first transfer area TA1 to the first inspection area IA1 of the second inspection line IL2. A first inspection of the display panel 200 may be performed in the first inspection area IA1. Subsequently, the carrier C may move to the second transfer area TA2 disposed behind the first inspection area IA1. The carrier C moves from the first transfer area TA1 to the first inspection area IA1, the first inspection of the display panel 200 is performed in the first inspection area IA1, and the carrier C moves to the first inspection area IA1. The process of moving from the first inspection area IA1 to the second transfer area TA2 is substantially the same as the process described in FIGS. 2 to 3D, and thus redundant description will be omitted.

Subsequently, the carrier C moves from the second transfer area TA2 to the second inspection area IA2. 2 to 3E , since the second inspection of the display panel 200 was not required, the carrier C moved from the second transfer area TA2 to the bypass line BPL. However, unlike this, as shown in FIG. 5B, when the second inspection of the display panel 200 needs to be performed, the carrier C moves from the second transfer area TA2 to the bypass line BPL. You can move to the second inspection area (IA2) without doing so. Additionally, a second inspection may be performed on the display panel 200 loaded on the carrier C that has arrived in the second inspection area IA2.

Next, referring to FIG. 5C, the carrier C moves from the second inspection area IA2 to the third transfer area TA3 (S240). When the second inspection of the display panel 200 is completed, the carrier C moves from the second inspection area IA2 to the third transfer area TA3. When the first inspection and the second inspection are performed in succession in the adjacent first inspection area (IA1) and the second inspection area (IA2), the carrier (C) moves to the first transfer area (TA1) and the first inspection area (IA2). It moves sequentially through the area IA1, the second transfer area TA2, the second inspection area IA2, and the third transfer area TA3, and can move so that there is directionality in the first direction.

Next, referring to FIG. 5D, the carrier C moves from the third transfer area TA3 to the bypass line BPL (S250). The carrier C that has moved to the third transfer area TA3 may be moved to the bypass line BPL or the third inspection area IA3 depending on whether the third inspection is to be performed. If the third inspection is not required, the carrier C may move from the third transfer area TA3 to the bypass line BPL. Alternatively, if a third inspection is to be performed on the display panel 200, unlike shown in FIG. 5D, the carrier C may move from the third transfer area TA3 to the third inspection area IA3. there is.

Subsequently, the carrier C may move in the first direction along the bypass line BPL and move to the other end of the bypass line BPL. Subsequently, the display panel 200 loaded on the carrier C may be unloaded by the robot arm. The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

In the case of the display panel inspection method according to another embodiment of the present invention, a plurality of inspection areas (IA) where different inspections can be performed are arranged adjacent to one inspection line (IL), and a plurality of inspection areas (IA) ) The transfer area (TA) may be disposed between. If different tests are to be performed in all of the plurality of inspection areas (IA), the carrier (C) can sequentially pass through all of the plurality of inspection areas (IA) through the transfer area (TA) in the bypass line (BPL). , Different inspections of the display panel 200 may be performed in each of the plurality of inspection areas (IA). In this way, when a plurality of different tests are performed, the carrier (C) can move from the bypass line (BPL) to one test line (IL) and sequentially pass through different test areas (IA), and the display panel At 200, different tests may be performed.

Figure 6 is a flowchart for explaining a display panel inspection method according to another embodiment of the present invention. 7 is a top view for explaining a display panel inspection device and method according to another embodiment of the present invention. The display panel inspection apparatus 700 and method of FIGS. 6 and 7 are substantially similar to the display panel inspection apparatus 100 and method of FIGS. 2 to 3E except that the configuration of the plurality of inspection areas (IA) is different. Since it is the same, duplicate description will be omitted.

Referring to FIG. 7 , each of the first inspection line IL1 and the second inspection line IL2 includes a plurality of first inspection areas IA1 and a plurality of second inspection areas IA2. The plurality of first inspection areas IA1 are areas where the same first inspection can be performed and may be arranged adjacent to one inspection line IL. The first inspection line IL1 and the second inspection line IL2 each have a first transfer area TA1, a first inspection area IA1, a second transfer area TA2, and a first inspection area along the first direction. (IA1), third transfer area (TA3), and second inspection area (IA2) may be arranged sequentially.

Referring to FIGS. 6 and 7 , when the carrier C moves along the first path P1 of FIG. 7 and the display panel 200 is inspected, first, the display panel 200 is loaded. The carrier (C) moves onto the bypass line (BPL) (S110). Next, the carrier C moves to the first transfer area TA1 of the first inspection line IL1 among the plurality of transfer areas TA (S320). Since these steps (S110, S320) are substantially the same as the steps (S110, S120) described in FIGS. 2 to 3E, duplicate descriptions will be omitted.

Subsequently, the carrier C sequentially moves from the first transfer area TA1 to each of the plurality of first inspection areas IA1 arranged adjacent to each other, and displays the display panel in one of the plurality of first inspection areas IA1. The first test of 200) is performed (S330). The carrier C has a first inspection area (IA1) adjacent to the first transfer area (TA1), a second transfer area (TA2), a first inspection area (IA1) adjacent to the second transfer area (TA2), and a third inspection area (IA1) adjacent to the first transfer area (TA1). It can pass through the transfer area (TA3) one after another. At this time, the carrier C may pass through two different first inspection areas IA1, and the first inspection of the display panel 200 may be performed in one of the first inspection areas IA1.

If a plurality of carriers (C) sequentially pass through the first inspection areas (IA1) along the first path (P1), one carrier (C) passes through the display panel in one of the first inspection areas (IA1). A first inspection of 200 may be performed, and a first inspection of the display panel 200 may be performed on the other carrier C in another one of the first inspection areas IA1.

Next, the carrier C moves from the first inspection area IA1 to the third transfer area TA3 (S340). When the carrier C passes all of the plurality of first inspection areas IA1, the carrier C moves to the third transfer area TA3. In this way, when passing through a plurality of adjacent first inspection areas (IA1) and performing the first inspection in one of the first inspection areas (IA1), the carrier (C) moves sequentially through the first transfer area (TA1), the first inspection area (IA1), the second transfer area (TA2), the first inspection area (IA1), and the third transfer area (TA3), and moves in the first direction. It can be moved so that there is direction.

Next, the carrier C moves from the third transfer area TA3 to the bypass line BPL (S350). The carrier C that has moved to the third transfer area TA3 may be moved to the bypass line BPL or the third inspection area IA3 depending on whether the third inspection is to be performed. If the third inspection is not required, the carrier C may move from the third transfer area TA3 to the bypass line BPL. On the other hand, if a third inspection is to be performed on the display panel 200, unlike the first path P1 in FIG. 7, the carrier C moves from the third transfer area TA3 to the second inspection area IA2. ), you can also move to .

Subsequently, the carrier C may move in the first direction along the bypass line BPL and move to the other end of the bypass line BPL. Subsequently, the display panel 200 loaded on the carrier C may be unloaded by the robot arm. The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

To explain the case where the display panel 200 is inspected while the carrier C moves along the second path P2 of FIG. 7, the carrier C moves along the second path P2 along the bypass line BPL. ) can move to the first transfer area (TA1) of the second inspection line (IL2). Additionally, the carrier C may move from the first transfer area TA1 to the adjacent first inspection area IA1, and a first inspection of the display panel 200 may be performed in the first inspection area IA1. . Also, the carrier C may move from the second transfer area TA2 to the bypass line BPL, differently from the description of the first path P1. Subsequently, the carrier (C) may move in a first direction along the bypass line (BPL) to the other end of the bypass line (BPL), and the display panel 200 loaded on the carrier (C) may be moved to the robot arm. It can be unloaded by . The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

In the case of the display panel inspection device 700 and method according to another embodiment of the present invention, inspection areas (IA) capable of performing the same inspection on one inspection line (IL) are separated by a transfer area (TA). They can be placed adjacent to each other. For example, the first inspection areas IA1 may be arranged adjacent to each other with the second transfer area TA2 in between. The carrier C passes through all of the first inspection areas IA1, and the first inspection of the display panel 200 may be performed in one of the first inspection areas IA1. Alternatively, the carrier C may pass through only one of the first inspection areas IA1, perform the first inspection of the display panel 200, and then move to the bypass line BPL. As described above, when a plurality of carriers C are introduced into the bypass line BPL, a first inspection may need to be performed on all display panels 200 loaded on the plurality of carriers C. In this case, instead of the plurality of carriers C moving along the second path P2, the plurality of carriers C may move sequentially along the first path P1. Additionally, a first inspection may be performed on the display panels 200 loaded on each of the plurality of carriers C in different first inspection areas IA1. Accordingly, the time required to perform the first inspection on all display panels 200 loaded on the plurality of carriers C can be reduced. On the other hand, when the first inspection is to be performed only on some of the display panels 200 loaded on the plurality of carriers C, for example, only one display panel 200, the first inspection is performed along the second path P2. By performing test 1, there is an effect of being able to return to the bypass line (BPL) more quickly after performing the first test.

FIG. 8 is a top view illustrating a display panel inspection device 800 and a method according to another embodiment of the present invention. The display panel inspection apparatus 800 and method of FIG. 8 are substantially the same as the display panel inspection apparatus 100 and method of FIGS. 2 to 3E except that the configuration of the plurality of inspection areas IA is different. , redundant explanations are omitted.

Referring to FIG. 8, each of the first inspection line IL1 and the second inspection line IL2 includes a plurality of first inspection areas (IA1), second inspection areas (IA2), and third inspection areas (IA3). do. A plurality of first inspection areas IA1 without a transfer area TA may be disposed in each of the first inspection line IL1 and the second inspection line IL2. Accordingly, a plurality of first inspection areas (IA1) may be disposed immediately adjacent to the rear end of the first transfer area (TA1), and no transfer area (TA) is disposed between the plurality of first inspection areas (IA1). It may not be possible. In addition, the transfer area (TA) may not be arranged between the second inspection area (IA2) and the third inspection area (IA3), and the second inspection area (IA2) and the third inspection area (IA3) are immediately adjacent to each other. can be placed. Accordingly, each of the first inspection line IL1 and the second inspection line IL2 includes a first transfer area TA1, three first inspection areas IA1, and a second transfer area TA2 along the first direction. , the second inspection area (IA2), the third inspection area (IA3), and the third transfer area (TA3) may be arranged sequentially.

When explaining the case where the display panel 200 is inspected while the carrier C moves along the third path P3 of FIG. 8, first, the carrier C loaded with the display panel 200 moves along the bypass line. (BPL), and the carrier (C) moves to the first transfer area (TA1) of the first inspection line (IL1).

Subsequently, the carrier C sequentially moves through each of the plurality of first inspection areas IA1 arranged sequentially adjacent to each other in the first transfer area TA1, and displays the display panel in one of the three first inspection areas IA1. A first test of 200 is performed. As described above, since the movement of the carrier C between the inspection area IA and the bypass line BPL is limited, the carrier C must pass through all three first inspection areas IA1. You can. If a plurality of carriers (C) sequentially pass through the three first inspection areas (IA1) along the third path (P3), each carrier (C) is displayed in a different first inspection area (IA1). A first inspection of panel 200 may be performed.

Subsequently, the carrier C may move from the first inspection area IA1 to the second transfer area TA2 and from the second transfer area TA2 to the bypass line BPL. When the carrier (C) moves from the second transfer area (TA2) to the bypass line (BPL), the second and third inspections of the display panel 200 loaded on the carrier (C) are not performed. You can.

Subsequently, the carrier C may move in the first direction along the bypass line BPL and move to the other end of the bypass line BPL. Subsequently, the display panel 200 loaded on the carrier C may be unloaded by the robot arm. The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

To explain the case where the display panel 200 is inspected while the carrier C moves along the fourth path P4 of FIG. 8, the carrier C moves along the fourth path P4 along the bypass line BPL. ) can move to the first transfer area (TA1) of the second inspection line (IL2). Then, the carrier C sequentially moves through each of the plurality of first inspection areas IA1 arranged sequentially adjacent to each other in the first transfer area TA1, and displays the display panel in one of the three first inspection areas IA1. A first test of 200 is performed.

Subsequently, the carrier C moves from the first inspection area IA1 to the second transfer area TA2, and, unlike the third path P3, moves from the second transfer area TA2 to the second inspection area IA2. You can move to . After the carrier C moves to the second inspection area IA2, a second inspection of the display panel 200 may be performed. Subsequently, the carrier C may move from the second inspection area IA2 to the third inspection area IA3, and a third inspection of the display panel 200 may be performed. As described above, the movement of the carrier C between the bypass line BPL and the inspection area IA may be restricted, and the movement of the carrier C in the inspection line IL may be limited to the direction opposite to the first direction. Movement may be restricted. Accordingly, the carrier C may have to move from the second inspection area IA2 to the third inspection area IA3.

Subsequently, the carrier C may move from the third inspection area IA3 to the third transfer area TA3 and from the third transfer area TA3 to the bypass line BPL. Subsequently, the carrier C may move in a first direction along the bypass line BPL and move to the other end of the bypass line BPL. Subsequently, the display panel 200 loaded on the carrier C may be unloaded by the robot arm. The display panel 200 for which all inspections have been completed may be separated from the carrier C by a robot arm and transferred to the next step of the display device manufacturing process.

In the case of the display panel inspection device 800 and method according to another embodiment of the present invention, a plurality of first inspection areas IA1 where the same first inspection is performed are directly adjacent to each other without a transfer area TA between them. Can be placed adjacent to each other. Accordingly, the carrier C can pass through all of the plurality of first inspection areas IA1, and the first inspection can be performed in one of the plurality of first inspection areas IA1. Accordingly, when the plurality of carriers C successively pass through the plurality of first inspection areas IA1, each of the plurality of carriers C undergoes the first inspection of the display panel 200 in different first inspection areas IA1. ) can be performed. Also, since the transfer area TA is not disposed between the first inspection areas IA1, the total time required for the first inspection of the display panels 200 can be shortened.

In addition, in the case of the display panel inspection device 800 and method according to another embodiment of the present invention, the inspection areas (IA) that perform different inspections are arranged directly adjacent to each other without the transfer area (TA) between them. It can be. For example, the second inspection area (IA2) and the third inspection area (IA3) may be placed directly adjacent to each other without the transfer area (TA) between them, and the inspection area (IA) and the bypass line (BPL) As the movement of the carrier C is limited, the carrier C may have to pass through both the second inspection area IA2 and the third inspection area IA3. In the display panel 200, when a second inspection is performed, a third inspection may also need to be performed, and in this case, the second inspection area (IA2) and the third inspection area (IA3) where the second inspection is performed are transferred. By arranging the area TA directly adjacent to each other without intervening between them, the carrier C can pass through both the second inspection area IA2 and the third inspection area IA3. Therefore, since the transfer area TA is not disposed between the second inspection area IA2 and the third inspection area IA3, the total time required for the second inspection and the third inspection of the display panel 200 is shortened. It can be.

9 is a side view for explaining a display panel inspection apparatus and method according to another embodiment of the present invention. The display panel inspection apparatus 900 and method of FIG. 9 are substantially the same as those of the display panel inspection apparatus 100 and method of FIG. 1 except that they further include a return line RL, and redundant description will be omitted. . The side view of FIG. 9 omits the first inspection line IL1 and the second inspection line IL2 for convenience of explanation.

Referring to FIG. 9 , the display panel inspection device 900 includes a return line (RL) disposed below the bypass line (BPL). The return line RL is a path along which the carrier C on which the display panel 200 is unloaded can move. The return line RL may extend in the first direction to form a movement path for the carrier C connecting one end and the other end of the bypass line BPL at the bottom of the bypass line BPL.

Specifically, the carrier C that has passed through the bypass line BPL flows out from the other end of the bypass line BPL, and the display panel 200 can be unloaded from the carrier C. An empty carrier C on which the display panel 200 is not loaded may move to one end of the bypass line BPL through the return line RL formed below the bypass line BPL. A new display panel 200 may be loaded on the carrier C that returns to one end of the bypass line BPL through the return line RL.

The display panel inspection device 900 and method according to another embodiment of the present invention are disposed below the bypass line (BPL), and an empty carrier (C) is placed at the other end of the bypass line (BPL). It may include a return line (RL) that provides a movable path to one end of the (BPL). Accordingly, the empty carrier C can effectively move to one end of the bypass line BPL, and the new display panel 200 can be loaded on the empty carrier C.

Meanwhile, the inspection line IL of the display panel inspection device 100 may further include at least one of a film detachment area, a bending area, and a module attachment area in addition to the inspection area IA. The film attachment/detachment area may be an area where a process of attaching or removing a film, such as a protective film, to the display panel 200 is performed. The bending area is an area where a process of bending a part of the display panel 200 is performed. In the bending area, a process of folding or unfolding a part of the display panel 200 at a specific angle may be performed. The module attachment area may be an area where a process for attaching a module such as a PCB or FPCB to the display panel 200 is performed. At least one of such a film detachment area, a bending area, and a module attachment area may be disposed on the inspection line of the display panel inspection device 100, and the carrier C passes through these areas to attach the film to the display panel 200. There is an effect that processes other than the inspection process, such as attaching and detaching the display panel 200, bending the display panel 200, or attaching a module to the display panel 200, can be performed.

The foregoing detailed description illustrates and explains the invention. In addition, the foregoing merely shows and describes preferred embodiments of the present invention, and as described above, the present invention can be used in various other combinations, modifications, and environments, and the scope and scope of the inventive concept disclosed in this specification. Changes or modifications may be made within the scope of equivalent disclosure and/or skill or knowledge in the art. Accordingly, the above detailed description of the invention is not intended to limit the invention to the disclosed embodiments. Additionally, the appended claims should be construed to include other embodiments as well.

100, 700, 800, 900: Display panel inspection device
200: display panel
BPL: bypass line
IL: inspection line
IL1: first inspection line
IL2: Second inspection line
RL: return line
C: carrier
IA: Inspection area
IA1: First inspection area
IA2: Second inspection area
IA3: Third inspection area
TA: transfer area
TA1: first transport area
TA2: second transport area
TA3: Third transfer area
TA4: Fourth transfer area
P1: first path
P2: second path
P3: Third path
P4: Fourth path

Claims (21)

A carrier that loads and transports the display panel;
a bypass line extending in a first direction and allowing the carrier to move; and
A plurality of inspection areas extending in the first direction, adjacent to the bypass line and arranged side by side with the bypass line interposed therebetween, a plurality of inspection areas for inspecting the display panel, and a plurality of transfers disposed between the plurality of inspection areas. Comprising a first inspection line and a second inspection line, comprising an area,
A display panel inspection device wherein the carrier includes a wireless communication unit and a wireless charging unit. According to paragraph 1,
The plurality of inspection areas are disposed on each of the first inspection line and the second inspection line with the bypass line therebetween, and include a plurality of first inspection areas that perform the same first inspection. Inspection device. According to paragraph 1,
Some of the plurality of inspection areas are arranged adjacent to each other in the first inspection line or the second inspection line except for the plurality of transfer areas. According to paragraph 3,
Some of the plurality of inspection areas arranged adjacent to each other, excluding the plurality of transfer areas, include a plurality of first inspection areas arranged adjacently,
The carrier sequentially passes through the plurality of first inspection areas,
A display panel inspection device wherein a first inspection of the display panel is performed in one of the plurality of first inspection areas. According to paragraph 3,
Some of the plurality of inspection areas arranged adjacent to each other, excluding the plurality of transfer areas, include a first inspection area and a second inspection area adjacent to the first inspection area,
The carrier sequentially passes through the first inspection area and the second inspection area,
A display panel inspection device wherein a first inspection of the display panel is performed in the first inspection area, and a second inspection of the display panel is performed in the second inspection area. According to paragraph 1,
Some of the plurality of inspection areas are arranged adjacent to each other in the first inspection line or the second inspection line with the transfer area interposed therebetween. According to clause 6,
Some of the plurality of inspection areas arranged adjacent to each other with the transfer area in between include a plurality of first inspection areas arranged adjacent to each other with the transfer area in between,
The carrier sequentially passes through the plurality of first inspection areas and the transfer area disposed between the plurality of first inspection areas,
A display panel inspection device wherein a first inspection of the display panel is performed in one of the plurality of first inspection areas. According to clause 6,
Some of the plurality of inspection areas arranged adjacent to each other with the transfer area in between include a first inspection area and a second inspection area arranged adjacent to each other with the transfer area in between,
The carrier sequentially passes through the first inspection area, the transfer area disposed between the first inspection area and the second inspection area, and the second inspection area,
A display panel inspection device wherein a first inspection of the display panel is performed in the first inspection area, and a second inspection of the display panel is performed in the second inspection area. According to paragraph 1,
The carrier is movable only between the bypass line and the transfer area, excluding between the bypass line and the inspection area. According to paragraph 1,
The carrier is capable of moving in only one direction between the transfer area and the inspection area. According to paragraph 1,
The display panel inspection device further includes a return line extending from a lower part of the bypass line in the first direction, through which the carrier on which the display panel is unloaded can move. According to paragraph 1,
The first inspection line and the second inspection line further include at least one of a film detachment area for attaching and detaching a film to the display panel, a bending area for bending the display panel, and a module attachment area for attaching a module to the display panel. Including, display panel inspection device. moving a carrier loaded with a display panel to a bypass line extending in a first direction;
A plurality of inspection areas extending in the first direction, adjacent to the bypass line and arranged side by side with the bypass line interposed therebetween, a plurality of inspection areas for inspecting the display panel, and a plurality of transfers disposed between the plurality of inspection areas. moving the carrier to one of a first inspection line and a second inspection line comprising an area;
inspecting the display panel in at least one of the plurality of inspection areas; and
moving the carrier from one of the first inspection line and the second inspection line to the bypass line,
A display panel inspection method, wherein the carrier includes a wireless communication unit and a wireless charging unit. According to clause 13,
Moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas,
The steps in which the display panel is inspected are:
performing a first inspection of the display panel by moving the carrier from the first transfer area to a first inspection area; and
moving the carrier from the first inspection area to a second transfer area,
The step of moving the carrier from one of the first inspection line and the second inspection line to the bypass line includes moving the carrier from the second transfer area to the bypass line. method of inspection. According to clause 13,
Moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas,
The steps in which the display panel is inspected are:
The carrier sequentially moves from the first transfer area to a first inspection area and a second inspection area arranged adjacent to each other, and a first inspection of the display panel is performed in the first inspection area, and the second inspection is performed. performing a second inspection of the display panel in the area; and
Comprising moving from the second inspection area to a second transfer area,
The step of moving the carrier from one of the first inspection line and the second inspection line to the bypass line includes moving the carrier from the second transfer area to the bypass line. method of inspection. According to clause 15,
The transfer area is disposed between the first inspection area and the second inspection area,
The carrier passes through the transfer area disposed between the first inspection area and the second inspection area and moves from the first inspection area to the second inspection area. According to clause 15,
The first inspection area is adjacent to the second inspection area except for the transfer area. According to clause 13,
Moving the carrier to one of the first inspection line and the second inspection line includes moving the carrier to a first transfer area among the plurality of transfer areas,
The steps in which the display panel is inspected are:
sequentially moving the carrier from the first transfer area to each of a plurality of first inspection areas arranged adjacent to each other, and performing a first inspection of the display panel in one of the plurality of first inspection areas; and
moving the carrier from the plurality of first inspection areas to a second transfer area,
The step of moving the carrier from one of the first inspection line and the second inspection line to the bypass line includes moving the carrier from the second transfer area to the bypass line. method of inspection. According to clause 18,
The transfer area is disposed between the plurality of first inspection areas arranged adjacent to each other,
When the carrier moves to each of the plurality of first inspection areas in turn, the carrier moves through the transfer area disposed between the plurality of first inspection areas. According to clause 18,
A display panel inspection method, wherein the plurality of first inspection areas arranged adjacent to each other are arranged adjacent to each other except for the transfer area between them. According to clause 13,
The display panel inspection method further comprising moving the carrier on which the display panel is unloaded along a return line extending in the first direction from a lower portion of the bypass line.

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