Fixture for inspecting a display panel

Abstract

Provided is a display panel inspection fixture, the display panel inspection fixture comprising: a stage including a placement area and a peripheral area surrounding the placement area, a display panel to be inspected is to be disposed in the placement area, the stage includes a lower surface and an uneven upper surface, an opening is provided in the placement area of the stage; a first support member disposed on a first portion of the uneven upper surface of the stage, and a first barrier disposed on a second portion of the uneven upper surface of the stage. The first portion of the uneven upper surface is at the placement area and is spaced apart from the opening, and the second portion of the uneven upper surface is at the peripheral area. The first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage fit each other.

Description

[0001] This application claims the priority of Korean Patent Application No. 10-2020-0105894, filed on Aug. 24, 2020, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to a jig for inspecting a display panel, and more particularly, to a jig for inspecting a display panel including a light sensor. Background Art

[0003] Multimedia devices such as televisions, mobile phones, tablet computers, laptop computers, game units, etc. provide various functions such as providing images to users or detecting user inputs. Recently, electronic devices are also equipped with a function of detecting a user's fingerprint. As fingerprint detection methods, there are various methods such as an ultrasonic method of detecting vibration, a capacitance method, and a light detection method.

[0004] For a device including a fingerprint sensor that detects a fingerprint using a light detection method, when inspecting or evaluating the fingerprint sensor of the device, an inspection environment in which the influence of external light is minimized may be desired. Summary of the Invention

[0005] The present disclosure provides a jig capable of providing an environment in which the influence of external light is reduced when inspecting a display panel including a light sensor.

[0006] According to an embodiment of the present invention, a display panel inspection jig includes: a stage including a placement area and a peripheral area surrounding the placement area, in which a display panel to be inspected is to be disposed, the stage including a lower surface and an uneven upper surface, and an opening extending from the uneven upper surface of the stage to the lower surface is provided in the placement area of the stage; a first support provided on a first part of the uneven upper surface of the stage, the first part of the uneven upper surface being at the placement area and spaced apart from the opening; and a first barrier provided on a second part of the uneven upper surface of the stage. The second part of the uneven upper surface is at the peripheral area. The first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage fit each other.

[0007] The upper surface of the first support is provided at a first height from the lower surface of the stage. The upper surface of the first barrier is provided at a second height from the lower surface of the stage, and the second height is equal to or greater than the first height. The lower surface of the stage is flat.

[0008] The first barrier has a height that varies along the peripheral area.

[0009] When viewing the display panel inspection jig in a plan view, the first barrier is spaced apart from the display panel disposed on the first support member by a predetermined distance. The predetermined distance is equal to or less than about 3 mm.

[0010] The first barrier includes: a first sub-barrier extending longitudinally in a first direction; a second sub-barrier extending longitudinally in a second direction different from the first direction and connected to a first end of the first sub-barrier; and a third sub-barrier extending longitudinally in the second direction and connected to a second end of the first sub-barrier and spaced apart from the second sub-barrier in the first direction.

[0011] The first barrier further includes: a fourth sub-barrier extending longitudinally in the first direction and spaced apart from the first sub-barrier in the second direction.

[0012] The placement area is disposed between the first sub-barrier and the fourth sub-barrier.

[0013] The first barrier is integrally formed with the stage.

[0014] The display panel inspection jig further includes: a second barrier disposed on a third portion of the uneven upper surface at the placement area of the stage. When viewing the display panel in a plan view, the second barrier is spaced apart from the first support member and the first barrier.

[0015] The upper surface of the first support member is disposed at a first height from the lower surface of the stage, the upper surface of the second barrier is disposed at a second height from the lower surface of the stage, the second height is equal to or less than the first height, and the lower surface of the stage is flat.

[0016] The difference between the first height and the second height is equal to or less than about 0.2 mm.

[0017] The second barrier includes: a first auxiliary barrier disposed adjacent to an opening of the stage; a second auxiliary barrier connected to a first end of the first auxiliary barrier and extending away from the opening of the stage; and a third auxiliary barrier connected to a second end of the first auxiliary barrier and extending away from the opening of the stage. The second auxiliary barrier and the third auxiliary barrier are spaced apart from each other in the direction in which the first auxiliary barrier extends.

[0018] The second barrier further includes: a fourth auxiliary barrier spaced apart from the first auxiliary barrier in the direction in which each of the second auxiliary barrier and the third auxiliary barrier extends away from the opening of the stage. The second auxiliary barrier is connected to a first end of the fourth auxiliary barrier, and the third auxiliary barrier is connected to a second end of the fourth auxiliary barrier. When viewing the display panel inspection jig in a plan view, the second barrier is spaced apart from the opening and forms a closed line.

[0019] The second barrier is integrally formed with the stage.

[0020] The display panel inspection jig further includes: a second support member disposed in the placement area of the stage and supporting the display panel. The second support member is adjacent to a corresponding portion of the first barrier and extends in a direction parallel to the direction in which the corresponding portion of the first barrier extends.

[0021] The second support member supports a side surface or a lower surface of the display panel.

[0022] According to an embodiment of the present invention, a display panel inspection jig includes: a stage including a placement area and a peripheral area surrounding the placement area, a display panel to be inspected is to be disposed in the placement area, and an opening defined therethrough is provided in the placement area of the stage; a first support member disposed in the placement area of the stage and supporting a lower surface of the display panel; a second support member disposed in the placement area of the stage, spaced apart from the first support member, and supporting an edge of the display panel; and a first barrier disposed in the peripheral area of the stage and surrounding the placement area.

[0023] The display panel inspection jig further includes: a second barrier disposed in the placement area, spaced apart from the opening of the stage, and forming a closed line when the display panel inspection jig is viewed in a plan view.

[0024] When the display panel inspection jig is viewed in a plan view, the closed line is spaced apart from the first support member.

[0025] The second barrier is adjacent to a corresponding portion of the first barrier and extends in a direction parallel to the direction in which the corresponding portion of the first barrier extends.

[0026] Based on the above, the display panel inspection jig provides an environment in which the influence of external light is minimized in the process of inspecting the display panel, and thus, noise in the inspection result value is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] When considered in conjunction with the accompanying drawings, the above and other advantages of the present disclosure will become readily apparent by reference to the following detailed description, in which:

[0028] Figure 1A is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure, on which a display panel is placed;

[0029] Figure 1B is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0030] Figure 2 is an exploded perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0031] Figure 3is a side view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0032] Figure 4 is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0033] Figure 5 is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0034] Figure 6 is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0035] Figure 7 is along Figure 6 a cross-sectional view taken along line I-I' shown in to show a jig for inspecting a display panel according to an embodiment of the present disclosure;

[0036] Figure 8 is a plan view showing a display panel inspection jig according to an embodiment of the present disclosure, on which a display panel is placed;

[0037] Figure 9 is a perspective view showing a display panel inspection jig according to an embodiment of the present disclosure;

[0038] Figure 10A is a cross-sectional view showing a display panel inspection jig according to an embodiment of the present disclosure, on which a display panel is placed;

[0039] Figure 10B is a cross-sectional view showing a display panel inspection jig according to an embodiment of the present disclosure, on which a display panel is placed;

[0040] Figure 11 is a perspective view showing a jig for inspecting a display panel according to an embodiment of the present disclosure;

[0041] Figure 12A shows an image obtained from a fingerprint sensor of a display panel according to an embodiment of the present disclosure;

[0042] Figure 12B shows an SNR distribution according to an inspection of a fingerprint sensor of a display panel according to an embodiment of the present disclosure;

[0043] Figure 12C shows an image obtained from a fingerprint sensor of a display panel according to an embodiment of the present disclosure; and

[0044] Figure 12DShows the SNR distribution according to the inspection of the fingerprint sensor of the display panel according to an embodiment of the present disclosure. Detailed Description

[0045] The present disclosure can be variously changed and implemented in many different ways, so specific embodiments will be illustrated in the drawings and described in detail below. However, the present disclosure should not be limited to the specifically disclosed forms and should be construed as including all modifications, equivalents, or alternatives included within the spirit and scope of the present disclosure.

[0046] In the present disclosure, it will be understood that when an element or layer is referred to as "on", "connected to", or "coupled to" another element or layer, it can be directly on, directly connected to, or coupled to the other element or layer, or there may be intervening elements or layers.

[0047] Like reference numerals always denote like elements. In the figures, the thickness, ratios, and dimensions of components are exaggerated for effective description of the technical content.

[0048] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0049] It will be understood that although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Thus, a first element, first component, first region, first layer, or first part discussed below may be referred to as a second element, second component, second region, second layer, or second part without departing from the teachings of the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are also intended to include the plural forms.

[0050] For ease of description, spatial relative terms such as "under", "below", "beneath", "above", "on", etc. may be used herein to describe the relationship between one element or feature and another (other) element or feature as shown in the figures.

[0051] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will also be understood that terms (such as those defined in a general dictionary) should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0052] It will also be understood that when the terms "comprise" and / or its variants are used in this specification, it indicates the presence of the stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0053] Hereinafter, the present disclosure will be explained in detail with reference to the accompanying drawings.

[0054] Figures 1A to 11 A display panel inspection jig according to an embodiment is shown, and the shape of the display panel inspection jig should not be limited to Figures 1A to 11 those shown therein. Hereinafter, the display panel inspection jig of the present disclosure will be described with reference to the illustrated embodiments. In the present disclosure, the display panel inspection jig may be referred to as an "inspection jig" or a "jig".

[0055] Figure 1A 、 Figure 1B 、 Figure 2 、 Figure 3 and Figure 4 show a jig according to an embodiment. Figure 1A is a perspective view showing a jig JG on which a display panel DP is placed according to an embodiment of the present disclosure. Figure 1B is a perspective view showing the jig JG with the display panel DP removed. Figure 2 is showing Figure 1B a perspective exploded view of the jig JG. Figure 3 is a side view showing the jig JG according to an embodiment. Figure 4 is showing a jig JG having a structure different from the structure of the jig JG shown in Figure 1B .

[0056] Meanwhile, the front (or upper) surface and the rear (or lower) surface of each member are defined with respect to a plane substantially parallel to each of the first direction DR1 and the second direction DR2. The front surface and the rear surface face each other in the third direction DR3, and the normal direction of each of the front surface and the rear surface may be substantially parallel to the third direction DR3.

[0057] The separation distance between the front surface and the rear surface in the third direction DR3 may correspond to the thickness / height of each component. Meanwhile, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 may be opposite to each other and may be changed to other directions. Hereinafter, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 are referred to using the same reference numerals as the reference numerals of the first direction DR1, the second direction DR2, and the third direction DR3 in the drawings.

[0058] Referring to Figure 1A , the display panel DP may be a device that is activated in response to an electrical signal to provide an image to a user. The display panel DP may be applied to various electronic devices (such as a tablet computer, a laptop computer, or a smart phone) to provide an image to a user.

[0059] The jig JG of the present disclosure may be used to inspect the display panel DP including a light detection sensor (or a light sensor). The light detection sensor may be a sensor that receives light incident thereon and generates an electrical signal. For example, the display panel DP of the present exemplary embodiment may include an optical fingerprint sensor. The optical fingerprint sensor may use the light detection sensor to sense the light reflected from a finger touching the display panel and incident thereon. The fingerprint sensor may acquire an image of the fingerprint and may detect the user's fingerprint based on the difference in the surface uniformity or the curved shape of the fingerprint.

[0060] The area included in the display panel DP and overlapping with the fingerprint sensor may be referred to as the fingerprint sensor area FRA. A fingerprint may be sensed in the fingerprint sensor area FRA, and an image may be provided to the display panel DP substantially through the fingerprint sensor area FRA.

[0061] The display panel DP may include a circuit board. The circuit board may receive an electrical signal or may provide an electrical signal to the components included in the display panel DP. For example, the circuit board may receive information about the image to be displayed in the display panel DP and the sensed user fingerprint. The area included in the display panel DP and overlapping with the circuit board may be referred to as the circuit board area CP.

[0062] Meanwhile, the process of inspecting the fingerprint sensor included in the display panel DP may include a process of combining and calibrating the images obtained from the dark condition and the bright condition. In this case, when the fingerprint sensor is exposed to external light during the process of acquiring an image, the inspection result may include noise.

[0063] Therefore, the process of inspecting the fingerprint sensor may require a darkroom environment or an environment similar to a darkroom environment. However, in addition to the inspection of the fingerprint sensor, the driving evaluation process of the display panel DP may also include other inspections. The driving evaluation process of the display panel DP can be performed in an open environment facility, and there is a problem that it is difficult to have a darkroom environment.

[0064] The jig JG of the present disclosure can provide an environment similar to a darkroom environment during the inspection of the display panel DP placed on the jig JG. Therefore, the noise of the inspection result of the fingerprint sensor can be reduced.

[0065] Referring to Figure 1A and Figure 1B , the jig JG may include a stage ST, a first support SP1, and a first barrier BH1. The first barrier BH1 and the first support SP1 may be disposed on the stage ST to be spaced apart from each other.

[0066] The stage ST may include a placement area LOa in which the display panel DP to be inspected is placed and a peripheral area NLOa surrounding the placement area LOa. The placement area LOa may have the shape of the display panel DP placed therein. The peripheral area NLOa may include a coupling portion to allow the jig JG to be coupled to another inspection device.

[0067] The fingerprint sensor and the circuit board included in the display panel DP may be placed to face the upper surface of the stage ST of the jig JG in a third direction DR3. The fingerprint sensor and the circuit board included in the display panel DP may be disposed on the upper surface of the stage ST of the jig JG.

[0068] The stage ST may be provided with an opening OP that overlaps with the area defined by the outer boundary of the placement area LOa. For example, the placement area LOa of the stage ST may be provided with an opening OP. When the display panel DP is placed on the jig JG, the opening OP may overlap with the circuit board area CP of the display panel DP. The circuit board of the display panel DP may be exposed to the outside of the lower surface of the stage ST through the opening OP. When the display panel DP is placed on the jig JG, the driving evaluation of the circuit board may be performed through the opening OP of the jig JG. The shape of the opening OP is not limited to Figure 1B the shape shown in

[0069] When the display panel DP is placed on the jig JG, the fingerprint sensor area FRA of the display panel DP may not overlap with the opening OP. Since the fingerprint sensor is sensitive to exposure, the fingerprint sensor area FRA and the fingerprint sensor of the display panel DP may be covered by the lower surface of the stage ST.

[0070] Referring to Figure 2, the stage ST may include an upper surface ST-U, and the upper surface ST-U may be an uneven upper surface. A part of the upper surface ST-U of the stage ST may protrude, and other parts of the upper surface ST-U of the stage ST may be recessed. Accordingly, the thickness of the stage ST in the third direction DR3 may vary according to its position in the stage ST.

[0071] When the display panel DP is disposed on the stage ST, since the upper surface ST-U of the stage ST is uneven, external light LL may be incident on the lower surface of the display panel DP through the opening OP and the side surface of the display panel DP. If the external light LL incident on the display panel DP reaches the fingerprint sensor area FRA, it may cause noise in the result value during the inspection process of the fingerprint sensor. In an embodiment, in order to prevent the external light LL from reaching the fingerprint sensor area FRA when inspecting the display panel DP, the first barrier BH1 may be used to block the external light LL from reaching the fingerprint sensor area FRA.

[0072] The first support SP1 may be superimposed on the placement area LOa and may be disposed on the stage ST. When the jig JG is viewed in a plan view, the first support SP1 may be spaced apart from a portion LOa-1 of the opening OP and the placement area LOa that overlaps with the fingerprint sensor area FRA by a predetermined distance. When the display panel DP is placed in the jig JG for inspection, the first support SP1 may contact the lower surface of the display panel DP to support the display panel DP. In the case where the first support SP1 overlaps with the fingerprint sensor area FRA, the first support SP1 may contact the fingerprint sensor and may affect the inspection result.

[0073] As Figure 2 shown, the first support SP1 may include a plurality of supports SP1a, SP1b, and SP1c that support the lower surface of the display panel DP. Each of the supports SP1a, SP1b, and SP1c may be spaced apart from a portion LOa-1 of the placement area LOa that overlaps with the fingerprint sensor area FRA. Each of the supports SP1a, SP1b, and SP1c may be disposed on the upper surface ST-U of the stage ST and may extend in the third direction DR3 from the upper surface ST-U. However, the first support SP1 should not be limited to this or be restricted thereby, and the first support SP1 may include a single support that supports the lower surface of the display panel DP.

[0074] The first support SP1 may include a plastic or metal material. Additionally, since the first support SP1 may contact the lower surface of the display panel DP, the first support SP1 may include an elastic material such as rubber to prevent the display panel DP from being damaged. The first support SP1 may be formed of various materials having sufficient strength to support the display panel DP, without being limited to a specific material.

[0075] The first support member SP1 can define a separation space between the lower surface of the display panel DP and the upper surface ST-U of the stage ST. The external light LL incident on the lower surface of the display panel DP through the opening OP can reach the fingerprint sensor area FRA through the separation space, and the inspection result of the fingerprint sensor may be affected by the external light LL.

[0076] In an embodiment, the fingerprint sensor area FRA and the opening OP can be spaced apart from each other to such an extent that the external light LL irradiated through the opening OP rarely reaches the fingerprint sensor area FRA. In an embodiment, the upper surface ST-U of the stage ST can be provided with a stepped boundary area between the opening OP and the fingerprint sensor area FRA, and the stepped boundary area can be used to prevent the external light LL reflected from the lower surface of the display panel DP from reaching the fingerprint sensor area FRA.

[0077] The first barrier BH1 can be superimposed on the peripheral area NLOa and can be provided on the stage ST. The first barrier BH1 can surround all or a part of the placement area LOa. The first barrier BH1 can block the external light LL incident on the side surface of the display panel DP provided on the stage ST.

[0078] The first barrier BH1 can include an uneven lower surface BH1-B corresponding to the uneven upper surface ST-U of the stage ST on which the first barrier BH1 is provided. For example, when the upper surface ST-U of the stage ST has a protruding shape, the lower surface BH1-B of the first barrier BH1 can have a concave shape corresponding to the protruding shape of the upper surface ST-U of the stage ST. Since the shape of the lower surface BH1-B of the first barrier BH1 corresponds to the shape of the upper surface ST-U of the stage ST, the first barrier BH1 can block the external light LL passing between the first barrier BH1 and the stage ST. When the first barrier BH1 and the stage ST are combined with each other for inspection, the uneven lower surface BH1-B of the first barrier BH1 and the uneven upper surface ST-U of the stage ST can fit each other so that there is no gap between them, thereby preventing the external light LL from reaching the fingerprint sensor area FRA.

[0079] The upper surface BH1-U of the first barrier BH1 can be flat. Therefore, the height of the first barrier BH1 in the third direction DR3 can vary according to the peripheral area NLOa. That is, the height between the lower surface BH1-B and the upper surface BH1-U of the first barrier BH1 can vary along the peripheral area NLOa.

[0080] Refer to Figure 3, when viewed in a side view, the upper surface ST-U of the stage ST may be uneven, and the lower surface BH1-B of the first barrier BH1 may have a shape corresponding to the shape of the upper surface ST-U of the stage ST. Therefore, the height of the combined structure of the stage ST and the first barrier BH1 may be constant. For example, the lower surface of the stage ST and the upper surface of the first barrier BH1 may be flat, and the distance therebetween may be constant.

[0081] Meanwhile, in this specification, the phrase "when viewed in a side view" means when viewing the object portion toward the side of the object portion (e.g., in the first direction DR1 or the second direction DR2). Figure 3 The jig JG is shown as viewed from the side of the jig JG in the second direction DR2.

[0082] In Figure 3 , for ease of explanation, the support members SP1b and SP1c of the first support member SP1 superimposed on the first barrier BH1 in the side view are represented by dashed lines. The height between the lower surface ST-B of the stage ST and the upper surface SP1-U of the first support member SP1 may be referred to as the first height H1. The height between the lower surface ST-B of the stage ST and the upper surface BH1-U of the first barrier BH1 may be referred to as the second height H2.

[0083] The second height H2 may be equal to or greater than the first height H1. Therefore, in the side view, the separation space may be covered by the first barrier BH1, and the first barrier BH1 may block the external light LL incident on the side surface of the jig JG.

[0084] Referring to Figure 2 and Figure 4 , the first barrier BH1 may include a plurality of sub-barriers extending in the same direction or different directions. Figure 2 and Figure 4 The first barrier BH1 having mutually different shapes is shown.

[0085] Referring to Figure 4 , the first barrier BH1 may include a first sub-barrier BH1-1, a second sub-barrier BH1-2, and a third sub-barrier BH1-3. However, the first barrier BH1 is not limited to this or restricted thereby. As shown in Figure 2 in, compared with the first barrier BH1 of Figure 4 , the first barrier BH1 may further include a fourth sub-barrier BH1-4.

[0086] In Figure 2 , the plurality of sub-barriers BH1-1, BH1-2, BH1-3, and BH1-4 may surround the placement area LOa. In Figure 4Among them, multiple sub-barriers BH1-1, BH1-2, BH1-3 can partially surround a part of the placement area LOa.

[0087] The first sub-barrier BH1-1 can extend longitudinally in the first direction DR1. The first sub-barrier BH1-1 can block external light incident on the outer surface of the first sub-barrier BH1-1 in the second direction DR2.

[0088] The second sub-barrier BH1-2 can extend longitudinally in the second direction DR2. The second sub-barrier BH1-2 can be adjacent to one side of the first sub-barrier BH1-1. The second sub-barrier BH1-2 can block external light incident on the outer surface of the second sub-barrier BH1-2 in the first direction DR1.

[0089] The third sub-barrier BH1-3 can extend longitudinally in the second direction DR2. The third sub-barrier BH1-3 can be adjacent to the other side of the first sub-barrier BH1-1. The third sub-barrier BH1-3 can be spaced apart from the second sub-barrier BH1-2, and the placement area LOa is placed between them. The third sub-barrier BH1-3 can be spaced apart from the second sub-barrier BH1-2 in the first direction DR1, and can face the second sub-barrier BH1-2. The third sub-barrier BH1-3 can block external light incident on the outer surface of the third sub-barrier BH1-3 in the direction opposite to the first direction DR1.

[0090] The fourth sub-barrier BH1-4 can extend longitudinally in the first direction DR1. The fourth sub-barrier BH1-4 can be spaced apart from the first sub-barrier BH1-1, and the placement area LOa is placed between them. The fourth sub-barrier BH1-4 can be spaced apart from the first sub-barrier BH1-1 in the second direction DR2, and can face the first sub-barrier BH1-1. The fourth sub-barrier BH1-4 can block external light incident on the outer surface of the fourth sub-barrier BH1-4 in the direction opposite to the second direction DR2.

[0091] As Figure 2 As shown in, the first sub-barrier BH1-1, the second sub-barrier BH1-2, the third sub-barrier BH1-3 and the fourth sub-barrier BH1-4 can be connected to each other to surround the placement area LOa. Therefore, when viewing the fixture JG in a plan view, the first sub-barrier BH1-1, the second sub-barrier BH1-2, the third sub-barrier BH1-3 and the fourth sub-barrier BH1-4 can form a closed line.

[0092] At the same time, in this specification, the phrase "when viewed in a plan view" means when viewing the object part from above and when viewing the object part from the third direction DR3.

[0093] As Figure 4As shown, the second sub-barrier BH1-2 and the third sub-barrier BH1-3 can be connected to one side and the other side of the first sub-barrier BH1-1 respectively. Thus, the first sub-barrier BH1-1, the second sub-barrier BH1-2 and the third sub-barrier BH1-3 can surround three sides of the placement area LOa.

[0094] Figure 4 The first barrier BH1 is shown including a first sub-barrier BH1-1 longitudinally extending in a first direction DR1 and second and third sub-barriers BH1-2 and BH1-3 longitudinally extending in a second direction DR2. However, the present invention is not limited thereto. For example, the first barrier BH1 may include a first sub-barrier BH1-1 longitudinally extending in the second direction DR2 and second and third sub-barriers BH1-2 and BH1-3 longitudinally extending in the first direction DR1.

[0095] The sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can be integrally formed with each other. Thus, the sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can have a single frame shape, however, they should not be limited thereto or by this. The sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can be separated from each other, or only some of the sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can be connected to each other.

[0096] In Figure 2 and Figure 4 when viewed in a plane, the sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 have the same width as each other, however, they should not be limited thereto or by this. As an example, some of the sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can have the same width as each other, or all of the sub-barriers BH1-1, BH1-2, BH1-3 and BH1-4 can have different widths from each other.

[0097] Referring to Figures 1A to 4 The first barrier BH1 described can be integrally formed with the stage ST. The first barrier BH1 can include the same material as that of the stage ST, however, it should not be limited thereto or by this. As another way, the first barrier BH1 can be separated from the stage ST and can include a material different from that of the stage ST.

[0098] Figures 5 to 8 A display panel inspection jig JG according to an embodiment of the present disclosure is shown. Except for some components, Figures 5 to 8 the jig JG shown in Figures 1A to 4 can have substantially the same structure as the jig JG of Figures 5 to 8Mainly describe features different from those of Figures 1A to 4 features.

[0099] Referring to Figures 5 to 8 , the jig JG according to this embodiment may further include a second barrier BH2. The second barrier BH2 may be provided on the stage ST to overlap with the placement area LOa. The second barrier BH2 may be spaced apart from the first support SP1 and the first barrier BH1.

[0100] The second barrier BH2 may be provided to overlap with the fingerprint sensor area FRA (refer to Figure 1A ) or be provided adjacent to the fingerprint sensor area FRA (refer to Figure 1A ). The second barrier BH2 may block external light incident on the fingerprint sensor area FRA (refer to Figure 1A ).

[0101] Except for the shape of the second barrier BH2, the jigs JG shown in Figure 5 and Figure 6 may have substantially the same structure as each other. Referring to Figure 5 and Figure 6 , the second barrier BH2 may include a plurality of auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 extending in the same or different directions.

[0102] Referring to Figure 5 , the second barrier BH2 may include a first auxiliary barrier BH2-1, a second auxiliary barrier BH2-2, and a third auxiliary barrier BH2-3. However, the second barrier BH2 should not be limited to this or be restricted thereby. As shown in Figure 6 , the second barrier BH2 may further include a fourth auxiliary barrier BH2-4.

[0103] The first auxiliary barrier BH2-1 may extend longitudinally in the second direction DR2. When viewed in a plan view, the first auxiliary barrier BH2-1 may be provided between a portion LOa-1 (refer to Figure 1A ) of the placement area LOa that overlaps with the fingerprint sensor area FRA (refer to Figure 2 ) and the opening OP. The first auxiliary barrier BH2-1 may be provided adjacent to the opening OP of the stage ST. The first auxiliary barrier BH2-1 may prevent external light LL (refer to Figure 2 ) incident on the opening OP from passing through the fingerprint sensor along the first direction DR1.

[0104] The second auxiliary barrier BH2-2 may extend longitudinally in the first direction DR1. For example, the second auxiliary barrier BH2-2 may extend away from the opening OP of the stage ST. The second auxiliary barrier BH2-2 may be adjacent to one side of the first auxiliary barrier BH2-1. The second auxiliary barrier BH2-2 may prevent external light LL (refer to Figure 2 ) incident on the opening OP from passing through the fingerprint sensor in a direction opposite to the second direction DR2.

[0105] The third auxiliary barrier BH2-3 may extend longitudinally in the first direction DR1. For example, the third auxiliary barrier BH2-3 may extend away from the opening OP of the stage ST. The third auxiliary barrier BH2-3 may be adjacent to the other side of the first auxiliary barrier BH2-1. The third auxiliary barrier BH2-3 may be spaced apart from the second auxiliary barrier BH2-2, and the portion LOa-1 (refer to Figure 1A ) of the placement area LOa that overlaps with the fingerprint sensor area FRA (refer to Figure 2 ) is placed between the third auxiliary barrier BH2-3 and the second auxiliary barrier BH2-2. The third auxiliary barrier BH2-3 may be spaced apart from the second auxiliary barrier BH2-2 in the direction in which the first auxiliary barrier BH2-1 extends. The third auxiliary barrier BH2-3 may face the second auxiliary barrier BH2-2 in the second direction DR2. The third auxiliary barrier BH2-3 may prevent external light LL (refer to Figure 2 ) incident on the opening OP from passing through the fingerprint sensor in the second direction DR2.

[0106] The fourth auxiliary barrier BH2-4 may extend longitudinally in the second direction DR2. The fourth auxiliary barrier BH2-4 may be spaced apart from the first auxiliary barrier BH2-1, and the portion LOa-1 (refer to Figure 1A ) of the placement area LOa that overlaps with the fingerprint sensor area FRA (refer to Figure 2 ) is placed between the fourth auxiliary barrier BH2-4 and the first auxiliary barrier BH2-1. The fourth auxiliary barrier BH2-4 may be spaced apart from the first auxiliary barrier BH2-1 in the direction in which the second auxiliary barrier BH2-2 and the third auxiliary barrier BH2-3 extend. The fourth auxiliary barrier BH2-4 may face the first auxiliary barrier BH2-1 in the first direction DR1.

[0107] As Figure 5 shown, the second auxiliary barrier BH2-2 and the third auxiliary barrier BH2-3 may be respectively connected to one side and the other side of the first auxiliary barrier BH2-1. Therefore, the first auxiliary barrier BH2-1, the second auxiliary barrier BH2-2, and the third auxiliary barrier BH2-3 may be arranged to surround the portion LOa-1 (refer to Figure 1A ) of the placement area LOa that overlaps with the fingerprint sensor area FRA (refer toFigure 2 on three sides of ().

[0108] As Figure 6 shown, the first auxiliary barrier BH2-1, the second auxiliary barrier BH2-2, the third auxiliary barrier BH2-3, and the fourth auxiliary barrier BH2-4 can be connected to each other to form a closed line CC in a plane. When viewed in the plane, the closed line CC formed by the second barrier BH2 can be superimposed on the fingerprint sensor area FRA of the display panel DP (refer to Figure 1A ).

[0109] The auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 can be integrally formed with each other. Therefore, the auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 can have a single frame shape. However, they should not be limited to this or restricted thereby. As another way, the auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 can be spaced apart from each other, or only some of them can be connected to each other.

[0110] In Figure 5 and Figure 6 , the auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 have the same width as each other in a plane. However, they should not be limited to this or restricted thereby. As another way, some of the auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 can have the same width as each other, or all of the auxiliary barriers BH2-1, BH2-2, BH2-3, and BH2-4 can have different widths from each other.

[0111] The second barrier BH2 can block external light incident on the fingerprint sensor of the display panel DP (refer to Figure 1A ) together with the first barrier BH1. Specifically, the second barrier BH2 can prevent external light incident on the opening OP from passing through the fingerprint sensor.

[0112] The first barrier BH1 and the second barrier BH2 can be complementary to each other according to their shapes and can prevent external light from entering. For example, as Figure 4 shown, the first barrier BH1 can have a shape surrounding three sides of the placement area LOa. In this case, the second barrier BH2 can be arranged in a direction substantially parallel to the side surface not covered by the first barrier BH1 adjacent to the portion LOa-1 (refer to Figure 1A ) of the placement area LOa that is superimposed on the fingerprint sensor area FRA (refer to Figure 2 ). That is, Figure 5 the second auxiliary barrier BH2-2 of Figure 4The first barrier BH1. Therefore, external light incident on the side surface where the first barrier BH1 is not provided can be blocked by the second barrier BH2.

[0113] The first auxiliary barrier BH2-1, the second auxiliary barrier BH2-2, the third auxiliary barrier BH2-3, and the fourth auxiliary barrier BH2-4 can be set to be spaced apart from and parallel to the second sub-barrier BH1-2, the fourth sub-barrier BH1-4, the first sub-barrier BH1-1, and the third sub-barrier BH1-3, respectively. Since the jig JG of the present disclosure includes the first barrier BH1 and the second barrier BH2, entry of external light can be effectively prevented during the inspection process of the display panel DP. The jig JG of the present disclosure can provide an environment similar to a dark room during the inspection process of the fingerprint sensor, and thus, noise in the inspection result value can be reduced.

[0114] Figure 7 is a cross-sectional view taken along Figure 6 the line I-I' shown in Figure 8 is a plan view of the display panel provided on the Figure 6 jig JG shown in

[0115] Referring to Figure 7 , the height between the lower surface ST-B of the stage ST and the upper surface SP1-U of the first support SP1 can be referred to as the first height H1. The height between the lower surface ST-B of the stage ST and the upper surface BH2-U of the second barrier BH2 can be referred to as the third height H3. The third height H3 can be equal to or less than the first height H1. When viewed in a side view, the separation space defined by the lower surface of the display panel DP and the upper surface ST-U of the stage ST can be covered by the second barrier BH2 by the height of the second barrier BH2.

[0116] When the third height H3 is equal to the first height H1, the upper surface BH2-U of the second barrier BH2 can be in contact with the lower surface of the display panel DP. The upper surface BH2-U of the second barrier BH2 can include a material that prevents damage to the display panel DP.

[0117] When the third height H3 is smaller than the first height H1, there is a height difference of the first distance DH between the upper surface SP1-U of the first support SP1 and the upper surface BH-U of the second barrier BH2. As the first distance DH decreases, when viewed in a side view, the separation space between the lower surface of the display panel DP and the fingerprint sensor area FRA of the jig JG (refer to Figure 1A ) can be covered more effectively. For example, the first distance DH can be equal to or less than about 0.2 mm. However, the first distance DH should not be limited to this or restricted thereby.

[0118] Referring to Figure 8When viewed in a plan view, the opening OP defined in the stage ST may overlap with the circuit board area CP of the display panel DP. However, it should not be limited to this or restricted thereby. As another way, depending on the shape of the opening OP, part or all of the circuit board area CP may overlap with the opening OP.

[0119] When viewed in a plan view, the first barrier BH1 may be spaced apart from the display panel DP disposed on the stage ST by a predetermined separation distance D1. As the separation distance D1 decreases, entry of external light can be effectively prevented. For example, the separation distance D1 may be equal to or less than about 3 mm. However, the separation distance D1 should not be limited to this or restricted thereby.

[0120] When viewed in a plan view, the second barrier BH2 may form a closed line CC. The closed line CC may surround the fingerprint sensor area FRA of the display panel DP and extend along the outer boundary of the fingerprint sensor area FRA. When viewed in a plan view, the closed line CC may be spaced apart from the first support member SP1 and the opening OP, and the closed line CC may affect the inspection of the fingerprint sensor. Thus, the external light incident on the lower surface of the stage ST can be effectively affected by the second barrier BH2 forming the closed line CC.

[0121] When viewed in a plan view, the closed line CC may have an enclosing area equal to or larger than the area of the fingerprint sensor area FRA. The second barrier BH2 may block the external light passing through the separation space by surrounding the fingerprint sensor area FRA between the display panel DP and the stage ST, and the second barrier BH2 may reduce the noise of the result value of the inspection of the fingerprint sensor.

[0122] Refer to Figures 5 to 8 The described second barrier BH2 may be integrally formed with the stage ST. The second barrier BH2 may include the same material as the material of the stage ST. However, it should not be limited to this or restricted thereby. The second barrier BH2 may be separated from the stage ST and may include a material different from the material of the stage ST.

[0123] Figure 9 、 Figure 10A and Figure 10B are views showing a display panel inspection jig JG according to an embodiment of the present disclosure. Except for some components, Figure 9 、 Figure 10A and Figure 10B The jig JG shown in includes a configuration substantially the same as the configuration of the jig JG described with reference to Figures 1A to 4 Below, in Figure 9 、 Figure 10A and Figure 10B In, the jig JG will be mainly described with Figures 1A to 4Features different from those of the jig JG shown.

[0124] Figure 9 Is a perspective view showing the jig JG. The jig JG of the present disclosure may include a second support member SP2.

[0125] The second support member SP2 may be disposed on the stage ST to overlap with the placement area LOa. As Figure 9 Shown, the second support member SP2 may include a plurality of support members SP2a, SP2b, SP2c, SP2d, SP2e, and SP2f that support the display panel DP. The support members SP2a, SP2b, SP2c, SP2d, SP2e, and SP2f may be spaced apart from each other and may be disposed in the placement area LOa adjacent to the peripheral area NLOa.

[0126] The second support member SP2 may be spaced apart from the first support member SP1. Each of the support members SP2a, SP2b, SP2c, SP2d, SP2e, and SP2f of the second support member SP2 may be spaced apart from the first support member SP1. The first support member SP1 may support the lower surface of the display panel DP, and the second support member SP2 may prevent the display panel DP from rocking in the first direction DR1 or the second direction DR2.

[0127] The second support member SP2 may be disposed substantially parallel to the first barrier BH1. Referring to Figure 9 , each of the support members SP2a, SP2b, SP2c, SP2d, SP2e, and SP2f may be disposed parallel to the first barrier BH1.

[0128] However, the second support member SP2 should not be limited to this or restricted thereby, and the second support member SP2 may be implemented as a single support member that supports the lower surface or side surface of the display panel DP, and the single support member may be disposed parallel to the first barrier BH1.

[0129] The second support member SP2 may include a plastic or metal material. Additionally, the second support member SP2 may be in contact with the display panel DP, and the second support member SP2 may include an elastic material such as rubber to prevent damage to the display panel DP. The second support member SP2 may be formed of various materials having sufficient strength to support the display panel DP, without being limited to a specific material.

[0130] Figure 10A and Figure 10B Are cross-sectional views showing the display panel inspection jig JG according to an embodiment, the display panel inspection jig JG having a display panel placed thereon. Figure 10A and Figure 10BShows a display panel DP and a display panel DP-1 that have different shapes from each other and are provided on a jig JG.

[0131] The display panel may have a curved shape or a flat shape. The second support member SP2 may support the lower surface or the side surface of the display panel according to the shape of the display panel supported by the second support member SP2. According to the shape of the display panel, the height of each of the first support member SP1 and the second support member SP2 may be changed.

[0132] Figure 10A Is a cross-sectional view showing a display panel DP having a curved shape and provided on a jig JG. A portion DP-U of the upper surface of the display panel DP may be curved, and the normal direction of the portion DP-U of the upper surface may be a direction between a third direction DR3 and a second direction DR2. The support members SP2b and SP2f of the second support member SP2 may support the side surface DP-S of the display panel DP. The support members SP2b and SP2f of the second support member SP2 may include surfaces that support a portion DP-U of the upper surface of the curved display panel DP.

[0133] When viewed in a side view, the height of the upper surface SP1-U of the first support member SP1 that supports the lower surface DP-B of the display panel DP may be greater than the height of the upper surface SP2-U of the second support member SP2 that supports the side surface DP-S of the display panel DP.

[0134] Figure 10B Is a cross-sectional view showing a display panel DP-1 having a flat shape and provided on a jig JG. The support members SP2b and SP2f of the second support member SP2 may support a part of the lower surface DP-1-B of the display panel DP-1. The support members SP1a and SP1b of the first support member SP1 may support the lower surface DP-1-B of the display panel DP-1 near the center of the display panel DP-1, and the support members SP2b and SP2f of the second support member SP2 may support the lower surface DP-1-B of the display panel DP-1 near the periphery of the display panel DP-1. The support members SP2b and SP2f of the second support member SP2 may include surfaces that support the side surface DP-1-S of the display panel DP-1.

[0135] When viewed in a side view, the height of the upper surface SP1-U of the first support member SP1 that supports the lower surface DP-1-B of the display panel DP-1 may be the same as the height of the upper surface SP2-V of the second support member SP2 that supports the lower surface DP-1-B of the display panel DP-1.

[0136] Figure 11 Is a perspective view showing a display panel inspection jig JG according to an embodiment of the present disclosure. Refer to Figure 11, the jig JG may include a stage ST, a first support member SP1, a second support member SP2, a first barrier BH1, and a second barrier BH2. Figures 1A to 10B The description of the components of Figure 11 may be applicable to the components of

[0137] The first support member SP1 may support the lower surface of the display panel DP, and the second support member SP2 may support the edge of the display panel to prevent the display panel DP from wobbling in the first direction DR1 or the second direction DR2.

[0138] The first barrier BH1 may block external light incident on the display panel DP disposed on the stage ST from the outside. The first barrier BH1 may include a lower surface having a shape corresponding to the shape of the upper surface of the stage ST, and the first barrier BH1 may have a thickness that varies according to its position.

[0139] The second barrier BH2 may surround a portion LOa-1 (refer to Figure 1A ) of the placement area LOa that surrounds the fingerprint sensor area FRA (refer to Figure 2 ). The second barrier BH2 may cover the separation space defined between the display panel DP and the stage ST and surrounding the fingerprint sensor area FRA (refer to Figure 1A ), and thus may block external light incident on the fingerprint sensor.

[0140] Figure 12A Images obtained from the fingerprint sensor of the display panel disposed in a dark room environment and images obtained from the fingerprint sensor of the display panel disposed on the jig of the comparative example are shown. Figure 12B An SNR distribution graph of the fingerprint sensor measured from the display panel disposed on the jig of the comparative example and an SNR distribution graph of the fingerprint sensor of the display panel measured in a dark room environment are shown. Figure 12C Images obtained from the fingerprint sensor of the display panel disposed in a dark room environment and images obtained from the fingerprint sensor of the display panel disposed on the jig of the example embodiment are shown. Figure 12D An SNR distribution graph of the fingerprint sensor measured from the display panel disposed on the jig of the example embodiment and an SNR distribution graph of the display panel measured in a dark room environment are shown.

[0141] The jig according to the example embodiment includes Figure 11 the components of the jig JG shown in Figure 11 . The jig of the comparative example does not include the first barrier BH1 and the second barrier BH2 among the components of the jig JG shown in

[0142] Figure 12A and Figure 12CThe images (1-1), (1-3), (2-1) and (2-3) shown in [figure] are dark images captured by a fingerprint sensor. Figure 12A and Figure 12C The images (1-2), (1-4), (2-2) and (2-4) shown in [figure] are SNR (signal-to-noise ratio) images captured by a fingerprint sensor. A dark image refers to an image obtained by a fingerprint sensor under dark conditions. An SNR image refers to a fingerprint pattern captured by a fingerprint sensor to measure the SNR index.

[0143] Referring to Figure 12A , image (1-1) is a dark image obtained by a fingerprint sensor after the display panel is set on the fixture of the comparative example. Image (1-3) is a dark image obtained by the fingerprint sensor of the display panel in a dark room environment. Image (1-2) is an SNR image obtained by a fingerprint sensor after the display panel is set on the fixture of the comparative example. Image (1-4) is an SNR image obtained by the fingerprint sensor of the display panel in a dark room environment.

[0144] When comparing image (1-1) with image (1-3), it is observed that some areas become brighter in the direction of the arrow shown in image (1-1). This is because the fingerprint sensor is affected by external light when obtaining the dark image. When comparing image (1-2) with image (1-4), it is observed that there are differences in brightness between the images due to the influence of external light.

[0145] Therefore, due to external light, there is a brightness difference between the image captured by the fingerprint sensor of the display panel set on the fixture of the comparative example and the image captured by the fingerprint sensor of the display panel in a dark room environment. This brightness difference causes noise in the inspection result value of the fingerprint sensor.

[0146] Referring to Figure 12C , image (2-1) is a dark image obtained by a fingerprint sensor after the display panel is set on the fixture of the example. Image (2-3) is a dark image obtained by the fingerprint sensor of the display panel in a dark room environment. Image (2-2) is an SNR image obtained by a fingerprint sensor after the display panel is set on the fixture of the example. Image (2-4) is an SNR image obtained by the fingerprint sensor of the display panel in a dark room environment.

[0147] When comparing the image (2-1) with the image (2-3), it is observed that the dark image obtained in the darkroom environment is almost similar to the dark image obtained after the display panel is set on the jig of the example of the embodiment. In addition, when comparing the image (2-2) with the image (2-4), it is observed that the SNR images have similar brightness. This is because the external light incident on the fingerprint sensor of the display panel is blocked by the jig including the first barrier and the second barrier according to the example of the embodiment. Therefore, it is observed that the inspection of the fingerprint sensor of the display panel in the jig of the embodiment brings almost the same results as the inspection of the fingerprint sensor of the display panel in the darkroom environment.

[0148] The SNR index according to the distribution direction can be measured using the SNR image obtained through the fingerprint sensor. The SNR index represents the brightness difference value in each pixel according to the fingerprint pattern. Figure 12B and Figure 12D The SNR distribution shown in corresponds to the curve graph of the response value of the SNR index according to the pixel.

[0149] Referring to Figure 12B it is observed that the response value of the SNR of the fingerprint sensor of the display panel inspected in the jig of the comparative example is smaller than the response value of the SNR of the fingerprint sensor inspected in the darkroom environment. This is because the fingerprint sensor of the display panel set on the jig of the comparative example is affected by external light.

[0150] Referring to Figure 12D it is observed that the response value of the SNR of the fingerprint sensor of the display panel inspected in the jig of the example of the embodiment is basically the same as the response value of the SNR of the fingerprint sensor of the display panel inspected in the darkroom environment. This is because the first barrier and the second barrier included in the jig of the example of the embodiment block the external light from entering during the inspection process of the fingerprint sensor and provide an inspection environment similar to the darkroom environment.

[0151] Since the display panel inspection jig of the present disclosure includes a barrier, external light can be blocked during the driving inspection of the display panel, and noise regarding the inspection result can be removed. Specifically, the display panel inspection jig of the present disclosure can provide an environment similar to a darkroom in the inspection process of the optical fingerprint sensor of the display panel and can remove noise in the calibration process of the phase of the optical fingerprint sensor. When the display panel is inspected on the display panel inspection jig of the present disclosure, there is no need for a separate process to form a darkroom environment. Therefore, the display panel inspection jig of the present disclosure can reduce the process cost.

[0152] Although the exemplary embodiments of the present disclosure have been described, it is understood that the present disclosure should not be limited to these exemplary embodiments, but various changes and modifications can be made by those of ordinary skill in the art within the spirit and scope of the present disclosure as claimed hereinafter.

[0153] Accordingly, the subject matter disclosed should not be limited to any single embodiment described herein, and the scope of the inventive concept should be determined according to the appended claims.

Claims

1. A display panel inspection fixture, the display panel inspection fixture comprises: a stage including a placement area and a peripheral area surrounding the placement area, a display panel to be inspected is to be disposed in the placement area, the stage includes a lower surface and an uneven upper surface, wherein an opening extending from the uneven upper surface of the stage to the lower surface of the stage is provided in the placement area of the stage; a first support member disposed on a first portion of the uneven upper surface of the stage, wherein the first portion of the uneven upper surface is at the placement area and is spaced apart from the opening; and a first barrier disposed on a second portion of the uneven upper surface of the stage, wherein the second portion of the uneven upper surface is at the peripheral area, wherein the first barrier has an uneven lower surface such that the uneven lower surface of the first barrier and the uneven upper surface of the stage fit each other.

2. The display panel inspection fixture according to claim 1, wherein, an upper surface of the first support member is disposed at a first height from the lower surface of the stage, wherein an upper surface of the first barrier is disposed at a second height from the lower surface of the stage, and the second height is equal to or greater than the first height, and wherein the lower surface of the stage is flat.

3. The display panel inspection fixture according to claim 1, wherein, when viewing the display panel inspection fixture in a plan view, the first barrier is spaced apart from the display panel disposed on the first support member by a predetermined distance, and wherein the predetermined distance is equal to or less than 3 mm.

4. The display panel inspection fixture according to claim 1, wherein, the first barrier comprises: a first sub-barrier longitudinally extending in a first direction; a second sub-barrier longitudinally extending in a second direction different from the first direction and connected to a first end of the first sub-barrier; and a third sub-barrier longitudinally extending in the second direction and connected to a second end of the first sub-barrier and spaced apart from the second sub-barrier in the first direction.

5. The display panel inspection fixture according to claim 4, wherein, the first barrier further comprises: a fourth sub-barrier longitudinally extending in the first direction and spaced apart from the first sub-barrier in the second direction, and wherein the placement area is disposed between the first sub-barrier and the fourth sub-barrier.

6. The display panel inspection fixture according to claim 1, the display panel inspection fixture further comprises: a second barrier disposed on a third portion of the uneven upper surface at the placement area of the stage, wherein when viewing the display panel in a plan view, the second barrier is spaced apart from the first support member and the first barrier.

7. The display panel inspection fixture according to claim 6, wherein, an upper surface of the first support member is disposed at a first height from the lower surface of the stage, wherein an upper surface of the second barrier is disposed at a second height from the lower surface of the stage, wherein the second height is equal to or less than the first height, and wherein the lower surface of the table is flat.

8. The display panel inspection jig according to claim 6, wherein when the display panel inspection jig is viewed in a plan view, the second barrier is spaced apart from the opening and forms a closed line.

9. The display panel inspection jig according to claim 6, wherein at least one of the first barrier and the second barrier is integrally formed with the table.

10. The display panel inspection jig according to claim 1, the display panel inspection jig further comprises: a second support member disposed in the placement area of the table and supporting the display panel, wherein the second support member is adjacent to a corresponding portion of the first barrier, and wherein the second support member extends in a direction parallel to the direction in which the corresponding portion of the first barrier extends.

Images