Apparatus for inspecting reflected light on display surface

Abstract

An apparatus for inspecting reflected light on display surface according to the present disclosure comprises: a first plate; a second plate disposed to be spaced apart from the first plate by a predetermined distance and having a seating part for fixing an external device; and a light emitting unit disposed to be movable relative to the first plate or the second plate between the first plate and the second plate, wherein the light emitting unit comprises: a third plate having a first surface facing the second plate and a first hole at a center of the first surface; a diffusion plate disposed between the second plate and the third plate, the diffusion plate having a pattern surface facing the second plate and having a pattern formed thereon, and having a second hole formed at a center thereof; a camera disposed in the first hole of the third plate and configured to capture an image of a pattern reflected by the external device; and a plurality of light emitting elements disposed on the first surface to surround the camera and configured to emit light in a first direction toward the second plate such that light is reflected by the external device, wherein the camera is configured to capture an image of the pattern reflected by the external device corresponding to the pattern while the light passes through the pattern surface after being emitted from the plurality of light emitting elements.

Description

Display surface reflection inspection device

[0001] The various embodiments disclosed in this document relate to an inspection device for a display, for example, to a display surface reflectance inspection device.

[0002] Driven by remarkable advancements in information and communication technology and semiconductor technology, the distribution and use of various electronic devices are increasing rapidly. In particular, recent electronic devices are being developed to enable portable communication.

[0003] The term "electronic device" refers to a device that performs specific functions according to an installed program, ranging from home appliances to electronic notebooks, portable multimedia players, mobile communication terminals, tablet PCs, video / audio devices, desktop / laptop computers, and in-car navigation systems. For example, these electronic devices can output stored information as sound or video. As the integration density of electronic devices increases and ultra-high-speed, high-capacity wireless communication becomes commonplace, various functions can now be integrated into a single electronic device, such as a mobile communication terminal. For instance, not only communication functions but also entertainment functions like games, multimedia functions like music / video playback, communication and security functions like mobile banking, and functions such as schedule management or electronic wallets are being integrated into a single electronic device. These electronic devices are being miniaturized to allow users to carry them conveniently.

[0004] As electronic devices become smaller and large-screen displays are required, various types of displays, including flexible displays, are in demand. However, there have been difficulties in quantitatively analyzing the quality of various types of displays.

[0005] The information described above may be provided as background art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0006] A display surface reflectance inspection device according to the present disclosure comprises: a first plate; a second plate disposed at a certain distance from the first plate and having a mounting portion for fixing an external device; a light-emitting portion disposed between the first plate and the second plate so as to be movable with respect to the first plate or the second plate; and the light-emitting portion comprises a third plate having a first surface facing the second plate and a first hole at the center of the first surface; a diffusion plate disposed between the second plate and the third plate, having a pattern surface facing the second plate and having a pattern formed thereon, and having a second hole formed at the center; a camera disposed in the first hole of the third plate and capturing a pattern reflected to the external device; and a plurality of light-emitting elements disposed on the first surface to surround the camera and irradiating light in a first direction toward the second plate so as to reflect light to the external device, and configured to capture a pattern reflected to the external device corresponding to the pattern through the camera after being emitted from the plurality of light-emitting elements and passing through the pattern surface.

[0007] A display surface reflectance inspection device according to the present disclosure may be configured to include: a plate having a mounting portion for fixing an external device; a light-emitting portion spaced apart from the plate and positioned to be movable relative to the plate; and the light-emitting portion includes a light-emitting portion plate having a first surface facing the plate and a first hole formed at the center of the first surface; a diffusion plate positioned between the light-emitting portion plate and the plate, having a pattern surface facing the plate and having a pattern formed thereon, and a second hole formed at the center; a camera positioned in the first hole; and a plurality of light-emitting elements positioned on the first surface to surround the camera and irradiating light in a first direction toward the plate, and configured to capture light emitted from the plurality of light-emitting elements, passing through the pattern surface, and reflected to the external device corresponding to the pattern.

[0008] The aspects, configurations, and / or advantages described above regarding various embodiments of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.

[0009] FIG. 1 is a front perspective view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0010] FIG. 2 is a drawing showing the rear side of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0011] FIG. 3 is a side view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0012] FIG. 4 is a front exploded perspective view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0013] FIG. 5a is a drawing showing the state in which the frame structure of the light-emitting part of a display surface reflection inspection device according to one embodiment of the present disclosure has been removed, viewed from the -Z direction to the +Z direction.

[0014] FIG. 5b is a drawing showing the state of the diffusion plate of FIG. 5a removed in one embodiment of the present disclosure, viewed from the -Z direction to the +Z direction.

[0015] FIG. 5c is a conceptual diagram showing an enlarged view of area S1 of FIG. 5b according to one embodiment of the present disclosure.

[0016] FIG. 5d is a conceptual diagram showing cross-section A-A' of FIG. 5b according to one embodiment of the present disclosure.

[0017] FIG. 6 is a conceptual diagram showing a diffusion plate of a light-emitting part according to one embodiment of the present disclosure.

[0018] FIG. 7a is a conceptual diagram of an enlarged area S2 of FIG. 5d according to one embodiment of the present disclosure.

[0019] FIG. 7b is a conceptual diagram of an enlarged area S2 of FIG. 5d according to one embodiment of the present disclosure.

[0020] FIG. 8 is a drawing showing the frame structure of a light-emitting part of a display surface reflection light inspection device according to one embodiment of the present disclosure.

[0021] FIG. 9a is a drawing showing the state in which the second plate and the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure are combined, viewed from the +Z direction to the -Z direction.

[0022] FIG. 9b is a conceptual diagram showing cross-section B-B' of FIG. 8a according to one embodiment of the present disclosure.

[0023] FIG. 10a is a front perspective view showing a height measuring unit coupled to a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0024] FIG. 10b is a rear view showing the state in which a light-emitting part of a display surface reflection inspection device according to one embodiment of the present disclosure moves along the Z-axis.

[0025] FIG. 10c is a conceptual diagram showing an enlarged cross-section of region S3 of FIG. 10b according to one embodiment of the present disclosure.

[0026] FIG. 11 is a drawing showing the state in which the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure moves along the X-axis from the second plate, viewed from the +Z direction to the -Z direction.

[0027] FIG. 12a is a drawing showing the state in which an external device is coupled to the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure, viewed from the +Z direction to the -Z direction.

[0028] FIG. 12b is a drawing showing the state in which an external device is coupled to the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure, viewed from the +Z direction to the -Z direction.

[0029] FIG. 13 is a drawing showing the state in which the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure rotates relative to the second plate, viewed from the +Z direction to the -Z direction.

[0030] FIG. 14 is a drawing showing the state of adjusting the horizontal height of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0031] FIG. 15 is a drawing illustrating a method for inspecting an external device using a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0032] FIG. 16a is a drawing showing a photograph of surface reflection light of an external device taken using a display surface reflection light inspection device according to one embodiment of the present disclosure.

[0033] FIG. 16b is a drawing showing a photograph of surface reflection of an external device taken using a display surface reflection inspection device according to one embodiment of the present disclosure.

[0034] Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers.

[0035] The following description relating to the attached drawings may provide an understanding of various exemplary embodiments of the present disclosure, including the claims and their corresponding contents. While the exemplary embodiments disclosed in the following description include various specific details to aid understanding, they are to be considered as one of various exemplary embodiments. Accordingly, those skilled in the art will understand that various changes and modifications to the various embodiments described herein may be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.

[0036] The terms and words used in the following description and claims are not limited to their literal meanings but may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be apparent to a person skilled in the art that the following description of various embodiments of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the rights or the disclosure defined as equivalent thereto.

[0037] Unless the context clearly indicates otherwise, it should be understood that the singular forms of "a," "an," and "the" include a plural meaning. Thus, for example, "component surface" can be understood to include one or more of the component surfaces.

[0038] The embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., first) component is referred to as "coupled" or "connected" to another (e.g., second) component, with or without the terms "functionally" or "communicatively," it means that said any component may be connected to said other component directly (e.g., firstly), wirelessly, or through a third component.

[0039] In the following detailed description, the length direction of a display surface reflectance inspection device (e.g., 101 in FIG. 1) may be defined as the 'X-axis direction', the width direction as the 'Y-axis direction', and / or the height direction (thickness direction) as the 'Z-axis direction'. In the following detailed description, the references to length direction, width direction, and / or height direction (or thickness direction) may refer to the length direction, width direction, and / or height direction (or thickness direction) of an electronic device.

[0040] According to one embodiment, the statement that a component faces 'a certain direction' can be understood to include not only the component facing 'a direction identical to a certain direction' but also the component facing 'a direction parallel to a certain direction'. It should be noted that in the following description, when a component is said to overlap (or stacked) with another component, the description of the arrangement relationship in the height direction described above may apply.

[0041] In describing directions, if 'negative / positive (- / +)' is not indicated, it may be interpreted to include both the positive and negative directions unless otherwise defined. For example, the 'Z-axis direction' may be interpreted to include both the +Z direction and the -Z direction. Similarly, the 'X-axis direction' may be interpreted to include both the +X direction and the -X direction, and the 'Y-axis direction' may be interpreted to include both the +Y direction and the -Y direction. However, in the XYZ spatial coordinate system depicted in the drawing, if 'negative / positive (- / +)' is not indicated on an axis, that axis may be interpreted to face the positive direction unless otherwise specified. In describing directions, facing any one of the three axes of the Cartesian coordinate system may include facing a direction parallel to said axis.

[0042] In the following description of the display surface reflectance inspection device (e.g., 101 in FIG. 2), the ‘first direction’ may mean the -Z axis direction or a direction parallel to the -Z axis. The ‘second direction’ may mean the +Z axis direction or a direction parallel to the +Z axis direction. The ‘third direction’ may mean the X axis or Y axis direction or a direction parallel thereto. The ‘third direction’ may mean a direction perpendicular to the ‘first direction’ or the ‘second direction’. Note that the foregoing description is based on the orthogonal coordinate system described in the drawings for the sake of brevity, and that the description of these directions or components does not limit the various embodiments of the present disclosure.

[0043] FIG. 1 is a front perspective view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0044] FIG. 2 is a drawing showing the rear side of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0045] FIG. 3 is a side view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0046] FIG. 4 is a front exploded perspective view of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0047] The configurations of the display surface reflectance inspection device described with reference to FIGS. 1 to 4 may be substantially identical to the configurations described with reference to FIGS. 5a to 15. The embodiments described with reference to FIGS. 1 to 4 may be combined within a range that does not conflict with the embodiments described with reference to FIGS. 5a to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 5a to 15.

[0048] According to one embodiment, a display surface reflection light inspection device (101) can inspect the surface quality of an external device (102) placed on a mounting portion (132) by photographing the reflected light. For example, light emitted from a light-emitting portion (120) of the surface reflection light inspection device (101) is reflected by the external device (102), and the reflected light is photographed by a camera (124) to quantitatively measure the spacing and pattern of the reflected light, thereby inspecting the surface quality of the external device (102).

[0049] According to one embodiment, the display surface reflectance inspection device (101) may include a first plate (110). The first plate (110) may have a height adjustment portion (140) protruding in a second direction (+Z direction) disposed thereon. Although not illustrated, the first plate (110) may have an external display device (not illustrated) for displaying an external device (102) that has been captured disposed thereon. The first plate (110) may include a metallic material or a synthetic resin. The first plate (110) may be named an upper plate, an upper plate, or substantially the same.

[0050] According to one embodiment, the display surface reflection light inspection device (101) may include a light-emitting unit (120). The light-emitting unit (120) may be positioned at a location spaced apart from the first plate (110) in a first direction (-Z direction). The light-emitting unit (120) may be positioned so as to be movable with respect to the first plate (110) at a location spaced apart from the first plate (110) in a first direction (-Z direction). The light-emitting unit (120) may be positioned between the first plate (110) and the second plate (130). The light-emitting unit (120) may be positioned so as to be movable with respect to the first plate (110) or the second plate (130) between the first plate (110) and the second plate (130).

[0051] According to one embodiment, the light-emitting part (120) may include a third plate (121). The third plate (121) may be spaced apart from the first plate (110) by a certain distance. The third plate (121) may be placed between the first plate (110) and the second plate (130). The third plate (121) may be placed so that its center is aligned with the first plate (110). The third plate (121) may include a first surface (e.g., the first surface (1213) in FIG. 5d) facing the second plate (130). A first hole (1211) may be formed in the third plate (121). The first hole (1211) may be formed in the first surface (e.g., the first surface (1213) in FIG. 5d) of the third plate (121). The first hole (1211) may be located at the center of the third plate (121). The center described in this disclosure may mean a geometric center. However, it should be noted that it is not limited thereto. The third plate (121) may be named a light-emitting plate, a middle plate, or substantially the same.

[0052] According to one embodiment, the light-emitting unit (120) may include a diffusion plate (123). The diffusion plate (123) may be spaced apart from the third plate (121). The diffusion plate (123) may be spaced apart from the first surface of the third plate (e.g., the first surface (1213) of FIG. 5d). The diffusion plate (123) may be placed between the second plate (130) and the third plate (121). The diffusion plate (123) may be placed so as to be aligned with the third plate (121). The diffusion plate (123) may be placed so as to be aligned with the center of the third plate (121). The diffusion plate (123) may include a patterned surface on which a pattern is formed (e.g., the patterned surface (22320a) shown in FIG. 6a). A second hole (e.g., the second hole (1231) of FIG. 5d) may be formed in the diffusion plate (123). The second hole (e.g., the second hole (1231) of FIG. 5d) may be formed at the center of the pattern surface (e.g., the pattern surface (22320a) shown in FIG. 7a). The second hole (e.g., the second hole (1231) of FIG. 5d) may be positioned so as to be aligned with the first hole (1211) of the third plate (121). The diffusion plate (123) may be positioned so as to be aligned with the first hole (1211) of the second hole (e.g., the second hole (1231) of FIG. 5d).

[0053] According to one embodiment, the light-emitting unit (120) may include a camera (124). A portion of the camera (124) may be positioned between the third plate (121) and the diffusion plate (123). Another portion of the camera (124) may be positioned across the first hole (1211) of the third plate (121). The camera (124) may be positioned at a location corresponding to the first hole (1211). A portion of the camera (124) may be positioned between the third plate (121) and the diffusion plate (123) at a location corresponding to the first hole (1211) and the second hole (e.g., the second hole (1231) in FIG. 5d). The camera (124) may be coupled to the third plate (121) by a camera holder (1241). The camera (124) may photograph an external device (102). For example, light emitted from a plurality of light-emitting elements (122) is irradiated onto an external device (102) through a diffusion plate (123) in the shape of a pattern formed on the diffusion plate and reflected, and a camera (124) can capture this. The camera (124) can be electrically connected to an external display device (not shown) to transmit the captured image, or transmit it to an external display device (not shown) through a transmitting / receiving device.

[0054] According to one embodiment, the light-emitting unit (120) may include a plurality of light-emitting elements (122). The plurality of light-emitting elements (122) may be disposed between the third plate (121) and the diffusion plate (123). The plurality of light-emitting elements (122) may be disposed on a first surface of the third plate (121) (e.g., the first surface (1213) of FIG. 5d). The plurality of light-emitting elements (122) may be disposed on the first surface of the third plate (121) (e.g., the first surface (1213) of FIG. 5d) so as to irradiate light onto an external device (102) and reflect the light that reaches the external device (102). The plurality of light-emitting elements (122) may be disposed to irradiate light in a first direction (-Z direction). A plurality of light-emitting elements (122) may be arranged on a first surface (e.g., the first surface (1213) in FIG. 5d) to surround the camera (124). A plurality of light-emitting elements (122) may be arranged to form a third hole (1225). For example, they may be arranged to surround a position corresponding to the first hole (1211) and the second hole (e.g., the second hole (1231) in FIG. 5d) to form the third hole (1225). The camera (124) may be placed in the third hole (1225) formed by the plurality of light-emitting elements (122).

[0055] According to one embodiment, the light-emitting unit (120) may include a frame structure (127). The frame structure (127) may be positioned between the first plate (110) and the second plate (130). The frame structure (127) may be positioned to surround the corners of the third plate (121). The frame structure (127) may be positioned to surround the diffusion plate (123).

[0056] The frame structure (127) can be combined with the third plate (121) and the diffusion plate (123) to form the exterior of the light-emitting part (120). The frame structure (127) can accommodate the third plate (121), a plurality of light-emitting elements (122), the diffusion plate (123), and the camera (124) to surround it.

[0057] According to one embodiment, the frame structure (127) and the third plate (121) may be formed by being integrally combined. For example, the frame structure (127) and the third plate (121) may be integrally combined to form a rectangular or columnar shape with one direction open.

[0058] According to one embodiment, the light-emitting unit (120) may include a power supply unit (1282) and a power switch (1281) on one side of the frame structure (127). The power supply unit (1282) may cause light to be emitted from a plurality of light-emitting elements (122) through power supplied from the outside. The power supply unit (1282) may transmit power supplied from the outside to the camera (124). The light-emitting unit (120) may receive power from the outside through the power supply unit (1282) and may turn On / Off the power supplied to the light-emitting unit (120) through the power switch (1281). The light-emitting unit (120) may supply or cut off power to the light-emitting elements (122) of the light-emitting unit (120) or the camera (124) using external power introduced through the power supply unit (1282).

[0059] According to one embodiment, the display surface reflection light inspection device (101) may include a second plate (130). The second plate (130) may be positioned at a certain distance from the first plate (110). The second plate (130) may be positioned at a distance from the light-emitting part (120). The second plate (130) may include a second surface (e.g., the second surface (1301) of FIG. 9b) facing a second direction (+Z direction) opposite to the first direction. The second plate (130) may include a third surface (e.g., the third surface (1303) of FIG. 9b) opposite to the second surface (e.g., the second surface (1301) of FIG. 9b). A recess (e.g., the recess (1302) of FIG. 9b)) may be formed on the second surface (e.g., the second surface (1301) of FIG. 9b). A rail (131) may be disposed in the recess (e.g., the recess (1302) in FIG. 9b). A first magnetic body (134) for securing a movably coupled seating portion (132) may be disposed in the second surface (e.g., the second surface (1301) in FIG. 9b). The second plate (130) may be named a plate, a lower plate, a lower plate portion, or substantially the same.

[0060] According to one embodiment, the display surface reflection light inspection device (101) may include a mounting portion (132) for fixing an external device (102). The mounting portion (132) may be placed on a second plate (130). The mounting portion (132) may be placed on a second surface of the second plate (130) (e.g., the second surface (1301) of FIG. 9b). The mounting portion (132) may be coupled to a rail (131). The mounting portion (132) may be coupled to a moving portion (133). The mounting portion (132) may be coupled to the moving portion (133) and then coupled to the rail (131).

[0061] According to one embodiment, the display surface reflectance inspection device (101) may include a height adjustment unit (140). The height adjustment unit (140) may be coupled to a first plate (110) and a second plate (130) by penetrating a light-emitting unit (120). The height adjustment unit (140) may include a rod (141) penetrating the light-emitting unit (120). The height adjustment unit (140) may include a rotating member (142) including a rotating handle (1421) coupled to a part of the rod penetrating the second opening (112) of the first plate (110). The height adjustment unit (140) may include a first coupling member (143) for coupling the rod to the first plate (110) and controlling movement in the X-axis or Y-axis direction. The height adjustment unit (140) may include a second coupling member (144) for coupling a rod to a second plate (130) and controlling movement in the X-axis or Y-axis direction. The height adjustment unit (140) may include a moving member (145) that is positioned in a first opening (e.g., the first opening (125) in FIG. 8) formed on one side of a frame structure (127) and surrounds a part of a rod (141). The moving member (145) is positioned in the first opening (e.g., the first opening (125) in FIG. 8) of the frame structure (127), coupled to the frame structure (127), and configured to be movable in the Z-axis direction relative to the rod.

[0062] According to one embodiment, a display surface reflectance inspection device (101) may include a plurality of guide members (151, 152, 153, 154). The plurality of guide members (151, 152, 153, 154) may each refer to a first guide member (151), a second guide member (152), a third guide member (153), and a fourth guide member (154). However, it should be noted that the first to fourth, referring to the guide members (e.g., the first guide member (151)), are for convenience of explanation only and do not limit the order or position. The plurality of guide members (151, 152, 153, 154) may be surrounded by a plurality of guide moving members (1511, 1521, 1531, 1541) each coupled to the light-emitting part (120) so that the light-emitting part (120) can move. A plurality of guide moving members (1511, 1521, 1531, 1541) may each refer to a first guide moving member (1511), a second guide moving member (1521), a third guide moving member (1531), and a fourth guide moving member (1541). A guide moving member (e.g., a first guide moving member (1511)) is placed in a plurality of guide holes (e.g., a first guide hole (1261) in FIG. 8) formed at the corners of a frame structure (127) and is coupled to the frame structure (127), and may surround a part of a guide member (e.g., a first guide member (151)) so as to be movable with respect to a guide member (e.g., a first guide member (151)) placed across the first guide hole (e.g., a first guide hole (1261) in FIG. 8).

[0063] According to one embodiment, the display surface reflectance inspection device (101) may include a plurality of horizontal adjustment units (161, 162, 163, 164). The plurality of horizontal adjustment units (161, 162, 163, 164) may refer to a first horizontal adjustment unit (161), a second horizontal adjustment unit (162), a third horizontal adjustment unit (163), and a fourth horizontal adjustment unit (164). A horizontal adjustment unit (e.g., a first horizontal adjustment unit (161)) may be positioned at the corner of a third surface (e.g., a third surface (1303) in FIG. 9b) of a second plate (130). A horizontal adjustment unit (e.g., a first horizontal adjustment unit (161)) may be rotatably coupled to the second plate (130).

[0064] According to one embodiment, the first plate (110) and the light-emitting part (120) may be arranged so that their centers are aligned. The third plate (130) may be larger than the area of ​​the first plate (110) and / or the light-emitting part (120). The light-emitting part (120) may be spaced apart from the second plate (130) so as to be aligned with the center of the external device (102) placed on the mounting part (132). The center of any configuration may refer to the geometric center of the cross-sectional area or perimeter of the configuration. However, it should be noted that it is not limited thereto.

[0065] FIG. 5a is a drawing showing the state in which the frame structure of the light-emitting part of a display surface reflection inspection device according to one embodiment of the present disclosure has been removed, viewed from the -Z direction to the +Z direction.

[0066] FIG. 5b is a drawing showing the state of the diffusion plate of FIG. 5a removed in one embodiment of the present disclosure, viewed from the -Z direction to the +Z direction.

[0067] FIG. 5c is a conceptual diagram showing an enlarged view of area S1 of FIG. 5b according to one embodiment of the present disclosure.

[0068] FIG. 5d is a conceptual diagram showing the state in which a frame structure is combined along section A-A' of FIG. 5b according to one embodiment of the present disclosure.

[0069] The configurations of the display surface reflectance inspection device described with reference to FIGS. 5a to 5d may be substantially identical to the configurations described with reference to FIGS. 1 to 4. The configurations of the display surface reflectance inspection device described with reference to FIGS. 5a to 5d may be identical to the configurations described with reference to FIGS. 6 to 15. The embodiments described with reference to FIGS. 5a to 5d may be combined within a range that does not conflict with the embodiments described with reference to FIGS. 1 to 4 and FIGS. 6 to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 1 to 4 and FIGS. 6 to 15.

[0070] According to one embodiment, the light-emitting unit (120) may include a third plate (121). The third plate (121) may include a support wall (1214). The support wall (1214) may protrude from a first surface (1213) of the third plate (121) toward a first direction (-Z direction). The support walls (1214) may be spaced apart from each other and positioned on both sides of a first hole (e.g., the first hole (1211) of FIG. 4). The support walls (1214) may be spaced apart from each other with the camera (124) in between. According to one embodiment, the support walls (1214) may be positioned to surround the periphery of the camera (124) and configured to additionally position a light-emitting element (122) around the camera (124). For example, a camera (124) may be positioned in the center of the light-emitting unit (120), and a plurality of light-emitting elements (122) may be positioned on the support wall (124) to prevent shadowing by the camera (124) when light is incident on the diffusion plate (123). According to one embodiment, the light-emitting unit (120) may include a frame structure (127). The frame structure (127) may be combined to surround the third plate (121), a plurality of light-emitting elements (122), the diffusion plate (123), the camera (124), and the internal space (1201) of the light-emitting unit (120). The frame structure (127) may be combined such that one side (1271) of the frame structure is positioned at the same location as the upper surface (1212) of the third plate. For example, one side (1271) of the frame structure may be positioned at the same location as the upper surface (1212) to form the same plane and form the exterior of the light-emitting part (120). The frame structure (127) may be combined such that the other side (1272) of the frame structure is positioned at the same location as the diffusion surface of the diffusion plate (123) (e.g., the diffusion surface (22310a) of FIG. 7a). For example, the other side (1272) of the frame structure may be positioned at the same location as the diffusion surface (e.g., the diffusion surface (22310a) of FIG. 7a) to form the same plane and form the exterior of the light-emitting part (120).

[0071] According to one embodiment, the light-emitting unit (120) may include a plurality of light-emitting elements (122) disposed on a first surface (1213) of a third plate (121). The plurality of light-emitting elements (122) may be disposed at a certain distance (D3) apart from each other. The plurality of light-emitting elements (122) may be arranged to intersect each other. Some of the plurality of light-emitting elements (1221, 1222) may be arranged to intersect each other. The plurality of light-emitting elements may include first light-emitting elements (1221) and second light-emitting elements (1222). The first light-emitting elements (1221) are arranged along the Y-axis on the first surface (1213), and the first light-emitting elements (1221) arranged along the Y-axis may be disposed at a certain distance (D3) apart along the X-axis. The first light-emitting elements (1221) may be arranged along the Y-axis at a distance from the support wall (1214) in an area corresponding to the length of the support wall (1214). The second light-emitting elements (1222) may be arranged to intersect the first light-emitting elements (1221) on both sides of the first hole (e.g., the first hole (1211) in FIG. 4) where the camera (124) is placed. The second light-emitting elements (1222) may be arranged between support walls (1214) that are spaced apart from each other. For example, the first light-emitting elements (1221) may be arranged parallel to the Y-axis along the first surface (1213), and the second light-emitting elements (1222) may be arranged between support walls (1214) that are spaced apart from each other perpendicularly from the first light-emitting elements (1221). The first light-emitting elements (1221) are spaced apart from each other in the area where the camera (124) is placed, and the second light-emitting elements (1222) are arranged vertically between the spaced-apart first light-emitting elements (1221) to form a third hole (e.g., the third hole (1225) of FIG. 4).The first light-emitting elements (12221) and the second light-emitting elements (1222) are arranged to intersect each other, and a camera (124) can be placed in the center. For example, according to one embodiment, the camera (124) placed in the center can capture light emitted from a plurality of light-emitting elements (122) and reflected to an external device (e.g., the external device (102) of FIG. 1) without distortion.

[0072] According to one embodiment, a plurality of light-emitting elements (122) may include third light-emitting elements (1223). The third light-emitting elements (1223) may be placed on support walls (1214) spaced apart from each other. The third light-emitting elements (1223) may be placed across the support walls (1214) spaced apart from each other. The third light-emitting elements (1223) may be placed across the support walls (1214) spaced apart from each other so as to be parallel to the first light-emitting elements (1221). The third light-emitting elements (1223) may be placed on the support walls (1214) and spaced apart from the first surface (1213) in a first direction (-Z-axis direction). The third light-emitting elements (1223) may be spaced apart and placed on the support walls (1214). For example, the third light-emitting elements (1223) may be spaced apart from each other so as to be positioned across both ends of the support wall (1214) to connect the spaced-apart support wall (1214). A plurality of light-emitting elements (122) may include fourth light-emitting elements (1224). The fourth light-emitting elements (1224) may be positioned across the spaced-apart third light-emitting elements (1223). The fourth light-emitting elements (1224) may be positioned on the third light-emitting elements (1223). The fourth light-emitting elements (1224) may be positioned across the spaced-apart third light-emitting elements (1223) so as to be parallel to the second light-emitting elements (1222). The fourth light-emitting elements (1224) may be positioned on the third light-emitting elements (1223) and spaced apart from the first surface (1213) in the first direction (-Z direction). The third light-emitting elements (1223) and the fourth light-emitting elements (1224) may be spaced apart from the first surface (1213) so as to intersect each other and surround the camera (124). The third light-emitting elements (1223) and the fourth light-emitting elements (1224) may be arranged to surround the camera (124) so ​​that they are emitted and reflected evenly to an external device (e.g., the external device (102) of FIG. 1).For example, the third light-emitting elements (1223) and the fourth light-emitting elements (1224) are arranged on the support wall (1214) so ​​as to intersect each other, thereby preventing shading from occurring on the diffusion plate (123) due to the camera (124). The third light-emitting elements (1223) may be named as another part of the plurality of light-emitting elements (122).

[0073] According to one embodiment, the light-emitting unit (120) may include a camera (124). The camera (124) may be placed in a first hole (e.g., the first hole (1211) of FIG. 4) of the third plate (121). The camera (124) may be fixed to a camera holder (1241) coupled in the opposite direction to the first surface (1213) (e.g., the upper surface (1212) of the third plate). The camera (124) may be placed in a third hole (1225) formed in a plurality of light-emitting elements (122). The camera (124) may be placed across the first hole (e.g., the first hole (1211) of FIG. 4) and the third hole (1225). The camera (124) may include a lens (1243) and a lens barrel (1242). The camera (124) can be combined such that the lens (1243) and the lens barrel (1242) are positioned in the internal space (1201) of the light-emitting part. The camera lens (1243) can be positioned such that third light-emitting elements (1223) and fourth light-emitting elements (1224) surround the camera lens (1243).

[0074] According to one embodiment, the light-emitting unit (120) may include a diffusion plate (123). The diffusion plate (123) may be coupled to another side (1272) of the frame structure (127). The diffusion plate (123) may be coupled to the frame structure (127) opposite to the third plate (121). The diffusion plate (123) may be coupled opposite to the third plate (121) to form an internal space (1201) of the light-emitting unit (120) together with the frame structure (127) and the third plate (121). The diffusion plate (123) may be detachably coupled to the frame structure (127). Since the diffusion plate (123) is detachably coupled, a diffusion plate having a different pattern may be coupled. The diffusion plate (123) may include a certain pattern surface (e.g., the pattern surface (22320a) of FIG. 7a) facing the second direction (+Z direction). A second hole (1231) may be formed on the pattern surface of the diffusion plate (123) (e.g., the pattern surface (22320a) of FIG. 7a). The second hole (1231) may be formed at a position corresponding to the first hole (e.g., the first hole (1211) of FIG. 4). The diffusion plate (123) can guide light emitted from a plurality of light-emitting elements (122) to be emitted in a first direction (-Z direction) or in a direction parallel to the first direction (-Z direction) and reach an external device (e.g., external device (102) of FIG. 4) placed on a mounting portion (e.g., mounting portion (132) of FIG. 4). The diffusion plate (123) can guide light emitted from a plurality of light-emitting elements (122) to pass through a pattern surface (e.g., pattern surface (22300a) in FIG. 7a) and be reflected to an external device (e.g., external device (102) in FIG. 1) placed on a mounting portion (e.g., mounting portion (132) in FIG. 4) having a certain pattern.

[0075] FIG. 6 is a conceptual diagram showing a diffusion plate of a light-emitting part according to one embodiment of the present disclosure.

[0076] FIG. 7a is a conceptual diagram of an enlarged area S2 of FIG. 5d according to one embodiment of the present disclosure.

[0077] FIG. 7b is a conceptual diagram of an enlarged area S2 of FIG. 5d according to one embodiment of the present disclosure.

[0078] The configurations of the display surface reflectance inspection device described with reference to FIGS. 6, 7a, and 7b may be substantially identical to the configurations described with reference to FIGS. 1 to 5d. The configurations of the display surface reflectance inspection device described with reference to FIGS. 6, 7a, and 7b may be identical to the configurations described with reference to FIGS. 8 to 15. The embodiments described with reference to FIGS. 6, 7a, and 7b may be combined to the extent that they do not conflict with the embodiments described with reference to FIGS. 1 to 5d and FIGS. 8 to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 1 to 5d and FIGS. 8 to 15.

[0079] Referring to FIG. 6, the diffusion plate (223) may include a first diffusion surface (2231). The diffusion plate (223) may include a pattern portion (2232) disposed on the first diffusion surface (2231). The pattern portion (2232) may be applied to the first diffusion surface (2231). The pattern portion (2232) may be applied to the first diffusion surface (2231) at regular intervals. For example, light emitted from a plurality of light-emitting elements (e.g., a plurality of light-emitting elements (122) of FIG. 5d) may not pass through the pattern portion (2232) and may pass through the diffusion plate (223) through the first diffusion surface (2231). For example, light that does not pass through the pattern portion (2232) may form a pattern on an external device (e.g., an external device (102) of FIG. 1). The pattern portion (2232) of the diffusion plate (223) may be named a silk pattern or substantially the same.

[0080] Referring to FIG. 7a, the diffusion plate (22300a) may include a pattern surface (22320a). The pattern surface (22320a) may be formed facing a second direction (+Z direction). The pattern surface (22320a) may be formed to face a plurality of light-emitting elements (e.g., a plurality of light-emitting elements (122) of FIG. 5d). The pattern surface (22320a) of the diffusion plate (22300a) may include a protrusion (22321a) protruding in the second direction (+Z direction) and a recess (22322a) recessed in the first direction (-Z direction). The pattern surface (22320a) may have the protrusion (22321a) and the recess (22322) repeatedly extended. The diffusion plate (22300a) may include a pattern surface with a prism structure. Note, however, that it is not limited thereto. The first diffusion plate (22300) may include a diffusion surface (22310a) through which light passing through the pattern surface (22320a) is diffused. The diffusion plate (22300a) can guide light emitted from a plurality of light-emitting elements (e.g., a plurality of light-emitting elements (122) of FIG. 5d) to pass through the pattern surface (22320a) and diffuse through the diffusion surface (22310a) parallel to the first direction (-Z direction). When light emitted from a plurality of light-emitting elements (e.g., a plurality of light-emitting elements (122) of FIG. 5d) passes through the pattern surface (22320), the diffusion plate (22300a) can cancel out a portion of the passed light and emit it to the diffusion surface (22310a). For example, light partially offset by the pattern surface (22320a) can be reflected in a constant pattern in which the offset portion repeatedly appears on an external device (e.g., external device (102) of FIG. 1) placed on a mounting portion (e.g., mounting portion (132) of FIG. 4).A display surface reflectance inspection device (e.g., 101 of FIG. 4) according to one embodiment of the present disclosure can capture light having a certain pattern reflected from an external device (e.g., external device (102) of FIG. 1) through a diffusion plate (22300a) and quantitatively analyze the surface quality of the external device (e.g., external device (102) of FIG. 4) through the spacing and shape of the pattern. The diffusion plate (22300a), pattern surface (22320a), diffusion surface (22310a), recess (22322a), and protrusion (22321a) described with reference to FIG. 7a may be named, respectively, a second diffusion plate, a second pattern surface, a second diffusion surface, a first recess, and a first protrusion for convenience of explanation.

[0081] Referring to FIG. 7b, the diffusion plate (22300b) may include a pattern surface (22320b). The pattern surface (22320b) may include a protrusion (22321b) protruding in a second direction (+Z direction) and a depression (22322b) protruding in a first direction (-Z direction). The pattern surface (22320b) may have the protrusion (22321b) and the depression (22322b) repeated and extended. The diffusion plate (22300b) may include a pattern sample (22330b) on one side of the pattern surface (22320b). The pattern sample (22330b) may be applied to one side of the pattern surface (22320b). The pattern sample (22330b) may extend from the recess (22322b) to the protrusion (22321b) on one side of the pattern surface (22320b). The pattern sample (22330b) may be repeatedly applied to one side of the pattern surface (22320b) where the protrusion (22321b) and the recess (22322b) are repeatedly extended. The pattern sample (22330b) may be applied to one side of the prism structure forming the pattern surface (22320b). However, it should be noted that it is not limited thereto. The pattern sample (22330b) may be applied at regular intervals along the pattern surface (22320b). The pattern sample (22330b) may block light passing through the pattern surface (22320b). For example, when light emitted from a plurality of light-emitting elements (e.g., the plurality of light-emitting elements (122) of FIG. 5d) passes through the pattern surface (22320b), a portion may be blocked by the pattern sample (22330b), and only a portion may pass through the diffusion surface (22310b). The light that passes only a portion through the pattern sample (22330b) may cause a certain pattern of light to be reflected by an external device (e.g., the external device (102) of FIG. 4). Configurations and effects not described below may be substantially the same as the diffusion first diffusion plate (22300a) of FIG. 6a, to the extent that they do not conflict.The diffusion plate (22300b), pattern surface (22320b), diffusion surface (22310b), depression (22322b), and protrusion (22321b), described with reference to FIG. 7b, may be named the third diffusion plate, third pattern surface, third diffusion surface, second depression, and second protrusion, respectively, for convenience of explanation.

[0082] According to one embodiment, the pattern surface of the first diffusion plate (22300a) or the second diffusion plate (22300b) (e.g., the first pattern surface (22320a)) may include a plurality of prisms protruding in a direction toward the first surface of the third plate (e.g., the first surface (1213) of FIG. 5d). According to one embodiment, the pattern surface of the first diffusion plate (22300a) or the second diffusion plate (22300b) (e.g., the first pattern surface (22320a)) may be formed uniformly in one direction toward the first surface of the third plate (e.g., the first surface (1213) of FIG. 5d).

[0083] It should be noted that the first and second of the first diffusion plate (22300a) or the second diffusion plate (22300b) described with reference to FIG. 7a and 7b are for convenience of explanation only and are not limited to the order or position, etc.

[0084] FIG. 8 is a drawing showing the frame structure of a light-emitting part of a display surface reflection light inspection device according to one embodiment of the present disclosure.

[0085] The configurations of the display surface reflectance inspection device described with reference to FIG. 8 may be substantially identical to the configurations described with reference to FIG. 1 to 7b. The configurations of the display surface reflectance inspection device described with reference to FIG. 8 may be identical to the configurations described with reference to FIG. 9a to 15. The embodiments described with reference to FIG. 7 may be combined within a range that does not conflict with the embodiments described with reference to FIG. 1 to 7b and FIG. 9a to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIG. 1 to 7b and FIG. 9a to 15.

[0086] According to one embodiment, a light-emitting part (e.g., the light-emitting part (120) of FIG. 4) may include a frame structure (127). The frame structure (127) may be in the shape of a square ring to form an empty space (1271) in the center. The frame structure (127) may be formed to surround the empty space (1271). At least a portion of a third plate (e.g., the third plate (121) of FIG. 4), a diffusion plate (e.g., the diffusion plate (123) of FIG. 4), a camera (e.g., the camera (124) of FIG. 4), and a plurality of light-emitting elements (122) may be accommodated in the empty space (1271) of the frame structure (127). The frame structure (127) may be formed to surround the corners of the third plate (e.g., the third plate (121) of FIG. 4) or the diffusion plate (e.g., the diffusion plate (123) of FIG. 4). At least one first opening (125) may be formed on at least one side of the frame structure (127). The first opening (125) may be penetrated by a rod of a height adjustment device (e.g., a rod (141) in FIG. 4). At least one guide hole (e.g., a first guide hole (1261)) may be formed on at least one corner of the frame structure (127). A plurality of guide holes (1261, 1262, 1263, 1264) through which a guide member (e.g., a first guide member (151) in FIG. 4) penetrates may be formed on the corner of the frame structure (127). The plurality of guide holes may include a first guide hole (1261), a second guide hole (1262), a third guide hole (1263), and a fourth guide hole (1264). The frame structure (127) can be configured so that a light-emitting part (e.g., the light-emitting part (120) of FIG. 4) can move along the Z-axis with respect to a first plate (e.g., the first plate (110) of FIG. 4) or a second plate (e.g., the second plate (130) of FIG. 4) through a first opening (125) and a plurality of guide holes (e.g., the first guide hole (1261)).The frame structure (127) is not limited to a square ring shape and can be formed in a different ring shape corresponding to the shape of the third plate (e.g., the third plate (121) of FIG. 4). Although the frame structure (127) of the present disclosure has been described as a structure arranged to surround the empty space (1271), it is not limited thereto and can be formed in a shape that is integrally combined with the third plate (e.g., the third plate (121) of FIG. 4) and is open in a direction opposite to the third plate (e.g., 121 of FIG. 4).

[0087] According to one embodiment, the frame structure (127) may include a receiving portion (1273) surrounding the periphery of the empty space (1271). The frame structure (127) may include a receiving portion (1273) to which a diffusion plate (e.g., the diffusion plate (123) of FIG. 4) may be attached. For example, the diffusion plate (e.g., the diffusion plate (123) of FIG. 4) may be surrounded by the frame structure (127) and positioned to be seated in the receiving portion (1273) to close the empty space (1271). The diffusion plate (e.g., the diffusion plate (123) of FIG. 4) may be attached to the frame structure (127) through at least one fixing hole (1274) formed in the receiving portion (1273). For example, a diffusion plate (e.g., the diffusion plate (123) of FIG. 4) may be placed in the receiving portion (1273), and a bolt may be fastened to a fixing hole (1274) by passing through a hole (not shown) formed in the diffusion plate. For example, the diffusion plate (e.g., the diffusion plate (123) of FIG. 4) may be separated from and / or combined with the frame structure (127) through a bolt fastened to a fixing hole (1274) of the frame structure (127). FIG. 9a is a drawing showing the state in which the second plate and the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure are combined, viewed from the +Z direction to the -Z direction.

[0088] FIG. 9b is a conceptual diagram showing cross-section B-B' of FIG. 8a according to one embodiment of the present disclosure.

[0089] The configurations of the display surface reflectance inspection device described with reference to FIGS. 9a and 9b may be substantially identical to the configurations described with reference to FIGS. 1 through 8. The configurations of the display surface reflectance inspection device described with reference to FIGS. 9a and 9b may be identical to the configurations described with reference to FIGS. 10a through 15. The embodiments described with reference to FIGS. 9a and 9b may be combined to the extent that they do not conflict with the embodiments described with reference to FIGS. 1 through 8 and FIGS. 10a through 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 1 through 8 and FIGS. 10a through 15.

[0090] According to one embodiment, a display surface reflection inspection device (e.g., 101 of FIG. 4) may include a third plate (130). The third plate (130) may include a second surface (1301) facing a second direction (+Z direction). A recess (1302) recessed in the first direction (-Z direction) may be formed on the second surface (1302). The third plate (130) may include a rail (131) disposed in the recess (1302). A first magnetic body (134) may be disposed on the second surface (1302). The first magnetic body (134) can control the mounting portion (132) after it moves a certain distance. For example, the mounting portion (132) is coupled to the moving portion (133) and moves a certain distance along the rail (131), and then the second magnetic body (1329) placed at the bottom of the moving portion (133) can be fixed through the magnetic force caused by the first magnetic body (134) placed on the first surface (1301) of the second plate (130). The first magnetic body (134) can fix the mounting portion (132) when an external device (e.g., the external device (102) of FIG. 1) is placed on the mounting portion (132).

[0091] According to one embodiment, a display surface reflectance inspection device (e.g., 101 of FIG. 4) may include guide members (151, 152, 153, 154) coupled to a second surface (1301) of a third plate (130) at a position corresponding to a guide hole (e.g., first guide hole (1261) of FIG. 7) of a frame structure (e.g., frame structure (127) of FIG. 8).

[0092] According to one embodiment, a display surface reflectance inspection device (e.g., 101 of FIG. 4) may include a second coupling member (144) and a rod (141) of a height adjustment device coupled to a second surface (1301) of a third plate (130) at a position corresponding to a first opening (e.g., first opening (125) of FIG. 7) of a frame structure (e.g., frame structure (127) of FIG. 8).

[0093] According to one embodiment, a display surface reflectance inspection device (e.g., 101 of FIG. 4) may include a mounting portion (132). The mounting portion (132) may be placed on a second surface (1301). The mounting portion (132) may be placed by being coupled to a rail (131). The mounting portion (132) may be placed on a moving portion (133) coupled to a control member (1333) placed on the rail. The mounting portion (132) may be in contact with one surface (1331) of the moving portion (133). The mounting portion (132) may be detachably coupled to the moving portion (133) by having a portion (1332) protruding from the moving portion (133) inserted into a groove (1372) of the mounting portion (132).

[0094] According to one embodiment, the mounting portion (132) is coupled to the moving portion (133) and can move along the rail (131) via the control member (1333). The moving portion (133) can be coupled to the rail (131) so as to be movable via the control member (1333). The moving portion (133) coupled with the control member (1333) can move along the rail (131) in the X-axis direction. The control member (1333) can be coupled to the rail (131) so as to be movable. The control member (1333) can control movement after moving a certain distance along the rail (131). For example, movement can be controlled at a position where the center of an external device (e.g., the external device (102) of FIG. 1) placed on the external device (132) placed on the external device (132) is aligned with a camera (e.g., the camera (124) of FIG. 4) after the external device (133) and the external device (132) placed on the external device (133) are moved along the rail (131). The external device (133) can move along the rail (131) in a direction perpendicular to the first direction (-Z direction) with respect to the second plate (130). The external device (132) placed on the external device (133) can move along the rail (131) in a direction perpendicular to the first direction (-Z direction) with respect to the second plate (130).

[0095] According to one embodiment, the seating portion (132) may include a receiving space (1321) that is recessed in a first direction (-Z direction) to accommodate an external device (e.g., external device (102) of FIG. 1). The seating portion (132) may include an inner surface (1325) surrounding the receiving space (1321). The seating portion (132) may include a first fixing member (1323) disposed on the inner surface (1325) and a second fixing member (1324) disposed on the inner surface (1325) perpendicular to the first fixing member. The first fixing member (1323) and the second fixing member (1324) may be configured to be insertable or protrude perpendicularly with respect to the inner surface (1325). The first fixing member (1323) and the second fixing member (1324) are configured to be insertable or protrude with respect to the inner surface (1325) to fix an external device (e.g., the external device (102) of FIG. 1) that is smaller than the receiving space (1321) and to align the center with a camera (e.g., the camera (124) of FIG. 4). The seating portion (132) may include a handle (1326) on one side. The seating portion (132) may move along the rail (131) by force transmitted through the handle (1326). Although not illustrated, a scale may be marked on one side of the seating portion (132).

[0096] FIG. 10a is a front perspective view showing a height measuring unit coupled to a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0097] FIG. 10b is a rear view showing the state in which a light-emitting part of a display surface reflection inspection device according to one embodiment of the present disclosure moves along the Z-axis.

[0098] FIG. 10c is a conceptual diagram showing an enlarged cross-section of region S3 of FIG. 10b according to one embodiment of the present disclosure.

[0099] The configurations of the display surface reflectance inspection device described with reference to FIGS. 10a and 10b may be substantially identical to the configurations described with reference to FIGS. 1 to 9b. The configurations of the display surface reflectance inspection device described with reference to FIGS. 10a and 10b may be identical to the configurations described with reference to FIGS. 11 to 15. The embodiments described with reference to FIGS. 10a and 10b may be combined within a range that does not conflict with the embodiments described with reference to FIGS. 1 to 9b and FIGS. 11 to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 1 to 9b and FIGS. 11 to 15.

[0100] According to one embodiment, the display surface reflection inspection device (101) may include a height measuring unit (160). The height measuring unit (160) may have a scale marked on it to measure the movement height of the light-emitting unit (120). For example, after the light-emitting unit (120) is moved, the focal distance between the light-emitting unit (120) and the external device (102) can be checked through the scale marked on the height measuring unit. The height measuring unit (160) may guide the height so that the light-emitting unit (120) moves to a predetermined height.

[0101] According to one embodiment, the light-emitting part (120) can move according to the height (L3) relative to the first plate (110) or the height (L4) relative to the second plate (130). The light-emitting part (120) can move in the Z-axis direction by means of a height adjustment device (140). When the rotating member (142) is rotated clockwise with respect to the +Z axis through the rotation handle (1421) of the height adjustment device (140), the light-emitting part (120) can move in the first direction (-Z direction) so that the height (L4) relative to the second plate (130) decreases. When the rotating member (142) is rotated counterclockwise with respect to the +Z axis through the rotation handle (1421), the light-emitting part (120) can move in the second direction (+Z direction) so that the height (L3) relative to the first plate (110) decreases.

[0102] According to one embodiment, the light-emitting part (120) can move through a moving member (145) coupled to a first opening (e.g., the first opening (125) of FIG. 8). When the rotating member (142) rotates through a force transmitted to the rotating handle (1421), the rod (141) rotates and the moving member (145) slides against the rod (141) and can move in the Z-axis direction. For example, a plurality of screw threads (1411) formed on the rod (141) and a plurality of screw grooves (15311) on the inner side of the moving member (145) engage, and when the rod (141) rotates, the screw grooves of the moving member (145) slide against the screw threads of the rod (141) and can move in the Z-axis. The light-emitting part (120) can be moved by the height adjustment device (140) to adjust the distance from the mounting part (132), thereby allowing the focus to be adjusted when photographing light reflected from an external device (e.g., external device (102) of FIG. 1). Alternatively, the height of the light-emitting part (120) can be adjusted to adjust the stripes or magnification of the pattern of light reflected from an external device (e.g., external device (102) of FIG. 1).

[0103] According to one embodiment, the rod (141) may include a plurality of screw threads (1411) on its surface. The plurality of screw threads (1411) may protrude from the surface of the rod (141). The plurality of screw threads (1411) may be received in screw grooves (15311) formed on the inner surface of the moving member (145). For example, when the rod (141) rotates in one direction with respect to the +Z axis, the plurality of screw threads (1411) may slide against the screw grooves (15311) to move the light-emitting part (120). After the light-emitting part (120) moves a certain distance, the plurality of screw threads (1411) may transmit force in the Z-axis with respect to the plurality of screw grooves (15311) to fix the light-emitting part (120).

[0104] According to one embodiment, the light-emitting unit (120) may be guided to move in the Z-axis direction through a guide member (e.g., a third guide member (153)) and a guide moving member (e.g., a third guide moving member (1531)). When the light-emitting unit (120) is moved by the height adjustment device (140), the guide moving member (e.g., a third guide moving member (1531)) coupled to the guide hole (e.g., the third guide hole (1263) in FIG. 8) of the light-emitting unit (120) may slide relative to the guide member (e.g., the third guide member (153)) to guide the light-emitting unit (120) to move in the Z-axis direction. The guide member (e.g., the third guide member (153)) and the guide moving member (e.g., the third guide moving member (1531)) may control the light-emitting unit (120) to move in a direction perpendicular to the Z-axis.

[0105] According to one embodiment, the display surface reflection light inspection device (101) may include a height fixing screw (1532). The height fixing screw (1532) may penetrate the frame (127) of the light-emitting part (120) and come into contact with at least one guide member (e.g., a third guide member (153)). The height fixing screw (1532) may come into contact with the guide member (e.g., a third guide member (153)) by penetrating a height fixing hole (12631) that penetrates one side of the frame structure (127) and a movable member (e.g., a third guide movable member (1531)). For example, the height fixing screw (1532) may penetrate the height fixing hole (12631) and be received in a side surface of the guide member (e.g., a third guide member (153)) or in a groove formed in the guide member (e.g., a third guide member (153)) to fix the height of the light-emitting part (120). The height fixing screw (1532) can be rotated clockwise about the Y-axis to transmit a vertical force along the -Y-axis to a guide member (e.g., third guide member (153)) across the height fixing hole (12631) to fix the light-emitting part (120). The height fixing screw (1532) can be rotated counterclockwise about the Y-axis to move along the +Y-axis from the height fixing hole (12631), thereby releasing the vertical force along the -Y-axis to the guide member (e.g., third guide member (153)) and allowing the light-emitting part (120) to move.

[0106] The movement of the light-emitting part (120) of the present disclosure is not limited by the height adjustment device (140) or guide member (e.g., third guide member (153)), but includes a range that can be selected and changed by a person skilled in the art.

[0107] FIG. 11 is a drawing showing the state in which the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure moves along the X-axis from the second plate, viewed from the +Z direction to the -Z direction.

[0108] The configurations of the display surface reflectance inspection device described with reference to FIG. 11 may be substantially identical to the configurations described with reference to FIG. 1 to FIG. 10c. The configurations of the display surface reflectance inspection device described with reference to FIG. 11 may be identical to the configurations described with reference to FIG. 12a to FIG. 15. The embodiments described with reference to FIG. 10 may be combined to the extent that they do not conflict with the embodiments described with reference to FIG. 1 to FIG. 10c and FIG. 12a to FIG. 15. Configurations not described below may be substantially identical to the configurations described with reference to FIG. 1 to FIG. 10cb and FIG. 12a to FIG. 15.

[0109] According to one embodiment, the seating portion (132) can move along the rail (131). The seating portion (132) can be accelerated along the rail (131) by force transmitted through the handle (1326). For example, when a user places an external device (e.g., external device (102) of FIG. 1) on the seating portion (132), if the handle (1326) is pulled toward the user so that the placement of the external device (e.g., external device (102) of FIG. 1) is not hindered by the light-emitting portion (e.g., light-emitting portion (120) of FIG. 4), force is transmitted to the seating portion (132) so that it can move toward the user along the rail (131). Conversely, when a user places an external device (e.g., external device (102) of FIG. 1) on the seating portion (132) and aligns it with a light-emitting portion (e.g., light-emitting portion (120) of FIG. 4), if the handle (1326) is pushed away from the user, force is transmitted to the seating portion (132) so that it can move away from the user along the rail (131).

[0110] The user side described with reference to Fig. 11 may mean the +X direction. The direction away from the user may mean the -X direction.

[0111] FIG. 12a is a drawing showing the state in which an external device is coupled to the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure, viewed from the +Z direction to the -Z direction.

[0112] FIG. 12b is a drawing showing the state in which an external device is coupled to the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure, viewed from the +Z direction to the -Z direction.

[0113] The configurations of the display surface reflectance inspection device described with reference to FIGS. 12a and 12b may be substantially identical to the configurations described with reference to FIGS. 1 to 11. The configurations of the display surface reflectance inspection device described with reference to FIGS. 12a and 12b may be identical to the configurations described with reference to FIGS. 13 to 15. The embodiments described with reference to FIGS. 12a and 12b may be combined to the extent that they do not conflict with the embodiments described with reference to FIGS. 1 to 11 and FIGS. 13 to 15. Configurations not described below may be substantially identical to the configurations described with reference to FIGS. 1 to 11 and FIGS. 13 to 15.

[0114] Referring to FIG. 12a, light having a constant pattern emitted from a light-emitting part (e.g., the light-emitting part (120) of FIG. 4) can be reflected in the external device (202a). The pattern reflected in the external device (202a) can be formed consistently so as to be parallel to the Y-axis.

[0115] Referring to FIG. 12b, light having a constant pattern emitted from a light-emitting part (e.g., the light-emitting part (120) of FIG. 4) can be reflected to the external device (202b). The pattern reflected to the external device (202a) can be formed consistently parallel to the X-axis.

[0116] According to one embodiment, a display surface reflection light inspection device (e.g., 101 of FIG. 4) may replace a diffusion plate (e.g., diffusion plate (123) of FIG. 4) so ​​that the emitted light has a constant pattern of reflection parallel to the Y-axis or X-axis. By changing the pattern direction of the diffusion plate (123), the pattern direction of the light reflected to the external device (202a, 202b) may be changed. Through this, the quality of the surface of the external device (202a, 202b) can be evaluated by quantitatively analyzing the reflected light having a constant pattern in the horizontal or vertical direction of the external device (202a, 202b).

[0117] FIG. 13 is a drawing showing the state in which the mounting portion of a display surface reflectance inspection device according to one embodiment of the present disclosure rotates relative to the second plate, viewed from the +Z direction to the -Z direction.

[0118] The configurations of the display surface reflectance inspection device described with reference to FIG. 13 may be substantially identical to the configurations described with reference to FIG. 1 to 12b. The configurations of the display surface reflectance inspection device described with reference to FIG. 13 may be identical to the configurations described with reference to FIG. 14 and FIG. 15. The embodiments described with reference to FIG. 12 may be combined to the extent that they do not conflict with the embodiments described with reference to FIG. 1 to 12b, FIG. 14, and FIG. 15. Configurations not described below may be substantially identical to the configurations described with reference to FIG. 1 to 12b, FIG. 14, and FIG. 15.

[0119] According to one embodiment, the mounting portion (232) may be coupled to the second plate (130) so as to be rotatable in a horizontal direction. The mounting portion (232) may be coupled to a separate rotating device coupled to the rail (131). The mounting portion (232) may rotate counterclockwise or clockwise with respect to the +Z axis through a force transmitted to the handle (2326). As the mounting portion (232) rotates, the external device (302) coupled to the mounting portion (232) rotates together, thereby allowing light having the same pattern reflected from the external device (302) to be captured in the vertical or horizontal direction of the external device (302) without separating the external device (302).

[0120] FIG. 14 is a drawing showing the state of adjusting the horizontal height of a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0121] The configurations of the display surface reflectance inspection device described with reference to FIG. 14 may be substantially identical to the configurations described with reference to FIG. 1 to 13. The configurations of the display surface reflectance inspection device described with reference to FIG. 14 may be identical to the configurations described with reference to FIG. 15. The embodiments described with reference to FIG. 14 may be combined to the extent that they do not conflict with the embodiments described with reference to FIG. 1 to 13 and FIG. 15. Configurations not described below may be substantially identical to the configurations described with reference to FIG. 1 to 13 and FIG. 15.

[0122] According to one embodiment, a display surface reflectance inspection device (e.g., 101 of FIG. 4) may include a horizontal adjustment unit (e.g., a second horizontal adjustment unit (162)). The second plate (130) of the display surface reflectance inspection device (e.g., 101 of FIG. 4) may include at least two horizontal adjustment units (162, 163) for adjusting the height of the surface reflectance inspection device at least a portion of the corner of the third surface (1302).

[0123] According to one embodiment, at least two horizontal adjustment units (162, 163) may include a first horizontal adjustment unit (e.g., the first horizontal adjustment unit (161) of FIG. 4), a second horizontal adjustment unit (162), a third horizontal adjustment unit (163), and a fourth horizontal adjustment unit (e.g., the fourth horizontal adjustment unit (164) of FIG. 4).

[0124] Referring to FIG. 14, when the height (L5) of the second horizontal adjustment unit is greater than the height (L6) of the third horizontal adjustment unit, the display surface reflection light inspection device (e.g., 101 in FIG. 4) may be inclined with respect to the X-axis or Y-axis. When the second horizontal adjustment unit (162) is rotated, a part (1621) of the second horizontal adjustment unit penetrating one side of the third surface (1303) of the second plate (130) is inserted into the second plate (130) by penetrating the third surface (1303), and the height (L5) of the second horizontal adjustment unit may be reduced. Through this, the second height (L7) of the second horizontal adjustment unit becomes equal to the height (L7) of the third horizontal adjustment unit, and the display surface reflection light inspection device (e.g., 101 in FIG. 4) may be aligned parallel to the X-axis or Y-axis.

[0125] FIG. 15 is a drawing illustrating a method for inspecting an external device using a display surface reflectance inspection device according to one embodiment of the present disclosure.

[0126] The configurations of the display surface reflectance inspection device described with reference to FIG. 15 may be substantially identical to the configurations described with reference to FIG. 1 to 13. The embodiments described with reference to FIG. 15 may be combined to the extent that they do not conflict with the embodiments described with reference to FIG. 1 to 14. The configurations not described below may be substantially identical to the configurations described with reference to FIG. 1 to 14.

[0127] A method (400) for inspecting an external device using a display surface reflectance inspection device (e.g., 101 of FIG. 2) may include an operation (401) of selecting a standard sample. The standard sample may be an external device (e.g., external device (102) of FIG. 1) or an external device display.

[0128] A method (400) for inspecting an external device using a display surface reflection inspection device (e.g., 101 of FIG. 2) may include an operation (402) for adjusting the height of a light-emitting part (e.g., light-emitting part (120) of FIG. 4). The height of the light-emitting part (e.g., light-emitting part (120) of FIG. 4) may be adjusted through a height adjustment part (e.g., height adjustment part (140) of FIG. 4). The distance from a standard sample may be adjusted by adjusting the height of the light-emitting part (e.g., light-emitting part (120) of FIG. 4).

[0129] A method (400) for inspecting an external device using a display surface reflection inspection device (e.g., 101 of FIG. 2) may include an operation (403) of irradiating light onto a standard sample. The light irradiated onto the standard sample may be light emitted from a light-emitting unit (e.g., the light-emitting unit (120) of FIG. 4). Light emitted from a plurality of light-emitting elements (e.g., the plurality of light-emitting elements (122) of FIG. 4) of the light-emitting unit (e.g., the light-emitting unit (120) of FIG. 4) may pass through a diffusion plate (e.g., the diffusion plate (123) of FIG. 4) and reach the standard sample.

[0130] A method (400) for inspecting an external device using a display surface reflection inspection device (e.g., 101 of FIG. 2) may include an action (404) of capturing light reflected from a standard sample. The reflected light can be captured through a camera (e.g., camera (124) of FIG. 4) placed on a light-emitting part (e.g., light-emitting part (120) of FIG. 4). The center of the standard sample is aligned with the camera (e.g., camera (124) of FIG. 4), thereby allowing the light reflected from the standard sample to be captured without distortion.

[0131] A method (400) for inspecting an external device using a display surface reflection inspection device (e.g., 101 of FIG. 2) may include an operation (405) of transmitting an image of a standard sample that has been captured. The captured image may be displayed through an external display device.

[0132] FIG. 16a is a drawing showing a photograph of surface reflection light of an external device taken using a display surface reflection light inspection device according to one embodiment of the present disclosure.

[0133] FIG. 16b is a drawing showing a photograph of surface reflection of an external device taken using a display surface reflection inspection device according to one embodiment of the present disclosure.

[0134] The flatness of the surface of a display can be verified through the difference between the pattern spacing (T1) of light reflected from a first verification sample (502a) and the pattern spacing (T2) of light reflected from a second verification sample (502b) captured by the display surface reflection light inspection device of the present disclosure (e.g., 101 of FIG. 2). For example, the display surface may protrude more than other parts in the part corresponding to the pattern spacing (T2) in the second verification sample (502b), so that the pattern spacing (T2) of the reflected light may be measured to be larger than the pattern spacing (T1) of the first verification sample (502a).

[0135] According to one embodiment of the present disclosure, each of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and disposed of in other components. According to one embodiment, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the components of the multiple components in the same or similar manner as those performed by the corresponding components among the multiple components prior to integration. According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0136] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) can quantitatively analyze the surface quality of a display.

[0137] According to one embodiment of the present disclosure, a display surface reflection inspection device (e.g., 101 of FIG. 2) has a camera (e.g., 124 of FIG. 4) positioned at the center of a light-emitting part (e.g., 120 of FIG. 4) so ​​that reflected light can be captured without distortion.

[0138] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) can quantitatively analyze the surface quality of a display through light having a certain pattern formed on one side of a diffusion plate (e.g., 123 of FIG. 4).

[0139] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) is coupled to a diffusion plate (e.g., 123 of FIG. 4) so ​​that the diffusion plate (e.g., 123 of FIG. 4) can be replaced according to the pattern to be measured. According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) is coupled to a mounting portion (e.g., 132 of FIG. 4) so ​​that the external device (e.g., 102 of FIG. 4) can be easily positioned or detached.

[0140] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) is coupled such that a mounting portion (e.g., 132 of FIG. 4) is rotatable, so that the surface condition in the horizontal or vertical direction can be analyzed without separating an external device (e.g., 102 of FIG. 4).

[0141] According to one embodiment of the present disclosure, a display surface reflection inspection device (e.g., 101 of FIG. 2) can easily adjust the focus of a camera (e.g., 124 of FIG. 4) by adjusting the height of a light-emitting part (e.g., 120 of FIG. 4).

[0142] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs from the description below.

[0143] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may include a first plate (e.g., 110 of FIG. 4).

[0144] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may include a second plate (e.g., 130 of FIG. 4) disposed at a certain distance from the first plate (e.g., 110 of FIG. 4) and having a mounting portion (e.g., 132 of FIG. 4) for fixing an external device (e.g., 102 of FIG. 4).

[0145] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a first surface (e.g., 1213 in FIG. 5d) facing the second plate and a third plate (e.g., 121 in FIG. 4) having a first hole (e.g., 1211 in FIG. 4) at the center of the first surface (e.g., 1213 in FIG. 5d).

[0146] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a diffusion plate (e.g., 123 in FIG. 4) disposed between the second plate (e.g., 130 in FIG. 4) and the third plate (e.g., 121 in FIG. 4), and having a patterned surface (e.g., 22320a in FIG. 7a) facing the second plate (e.g., 121 in FIG. 4) and having a second hole (e.g., 1243 in FIG. 5d) formed at the center of the patterned surface (e.g., 22320a in FIG. 7a).

[0147] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a camera (e.g., 124 in FIG. 4) that is positioned in the first hole (e.g., 1211 in FIG. 4) of the third plate (e.g., 121 in FIG. 4) and captures a pattern reflected from the external device.

[0148] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a plurality of light-emitting elements (e.g., 122 in FIG. 4) disposed on the first surface (e.g., 1213 in FIG. 5d) to surround the camera and irradiating light in a first direction toward the second plate (e.g., 130 in FIG. 4) so ​​as to reflect light to the external device (e.g., 102 in FIG. 4).

[0149] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may be configured to capture a pattern reflected to an external device (e.g., 102 of FIG. 1) corresponding to the pattern as it passes through a pattern surface (e.g., 22320a of FIG. 7a) after being emitted from the plurality of light-emitting elements (e.g., 122 of FIG. 4) through the camera (e.g., 124 of FIG. 4).

[0150] According to one embodiment of the present disclosure, the third plate (e.g., 121 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) protrudes toward the second plate (e.g., 130 in FIG. 4) from the first surface (e.g., 1213 in FIG. 5d) and includes support walls (e.g., 1214 in FIG. 5c) spaced apart from each other on both sides of the first hole (e.g., 1211 in FIG. 4), the camera (e.g., 124 in FIG. 4) is disposed between the support walls (e.g., 1214 in FIG. 5c) at a position corresponding to the first hole (e.g., 1211 in FIG. 4), some of the plurality of light-emitting elements (e.g., 1221 in FIG. 5c) are arranged to intersect each other, and other some of the plurality of light-emitting elements (e.g., 1223 in FIG. 5c) are on the first surface (e.g., FIG. 5d It can be spaced apart from the second plate (e.g., 130 in FIG. 4) and positioned across the support wall (e.g., 1214 in FIG. 5c) in the direction of the second plate (e.g., 130 in FIG. 4).

[0151] According to one embodiment of the present disclosure, the pattern of the diffusion plate (e.g., 123 in FIG. 4) of the display surface reflectance inspection device (e.g., 101 in FIG. 2) is formed with a plurality of prism structures protruding uniformly toward the first surface, and the diffusion plate (e.g., 123 in FIG. 4) may be configured to be separable from the light-emitting part (e.g., 120 in FIG. 4).

[0152] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) comprises a frame structure (e.g., 127 in FIG. 4) that accommodates the third plate (e.g., 121 in FIG. 4) in a direction toward the first plate (e.g., 110 in FIG. 4) so ​​as to surround the corner of the third plate (e.g., 121 in FIG. 4) and has at least one first opening (e.g., 125 in FIG. 4) formed on at least one side, and the surface reflectance inspection device (e.g., 101 in FIG. 2) is disposed across the first opening (e.g., 1211 in FIG. 4) so ​​that the light-emitting part (e.g., 120 in FIG. 4) is movable between the first plate (e.g., 110 in FIG. 4) or the second plate (e.g., 130 in FIG. 4). It may further include a height adjustment part (e.g., 140 in FIG. 4) including a rod (e.g., 141 in FIG. 4).

[0153] According to one embodiment of the present disclosure, the first plate (e.g., 110 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) has a second opening (e.g., 112 in FIG. 4) formed at a position corresponding to the first opening (e.g., 1211 in FIG. 4), the rod (e.g., 141 in FIG. 4) of the height adjustment part (e.g., 140 in FIG. 4) extends across the second opening (e.g., 112 in FIG. 4), the height adjustment part (e.g., 140 in FIG. 4) surrounds a portion of the rod (e.g., 141 in FIG. 4), and a movable member (e.g., 145 in FIG. 4) disposed in the first opening (e.g., 1211 in FIG. 4) so ​​that the light-emitting part (e.g., 120 in FIG. 4) can move along the rod (e.g., 141 in FIG. 4); the A rotating member (e.g., 142 in FIG. 4) comprising a rod (e.g., 141 in FIG. 4) extending across the second opening (e.g., 112 in FIG. 4) and a rotating handle (e.g., 1421 in FIG. 4) rotatably coupled to the rod (e.g., 141 in FIG. 4) at one end; and, depending on the rotation of the rotating handle (e.g., 1421 in FIG. 4), the rotating member (e.g., 142 in FIG. 4) can rotate the rod (e.g., 141 in FIG. 4) to move the light-emitting part (e.g., 120 in FIG. 4).

[0154] According to one embodiment of the present disclosure, the frame structure (e.g., 127 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) includes at least two guide holes (e.g., 1261 in FIG. 7) at the corners, and the surface reflectance inspection device may include at least two guide members (e.g., 151 in FIG. 4) coupled to the first plate and the second plate at positions corresponding to the at least two guide holes across the at least two guide holes (e.g., 1261 in FIG. 7).

[0155] According to one embodiment of the present disclosure, the mounting portion (e.g., 120 in FIG. 4) of the display surface reflectance inspection device (e.g., 101 in FIG. 2) may be coupled to the second plate (e.g., 130 in FIG. 4) so ​​as to be rotatable in a horizontal direction.

[0156] According to one embodiment of the present disclosure, the mounting portion (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may be coupled to the third plate in a detachable manner through a groove (e.g., 1328 in FIG. 9b) formed on the back surface (e.g., 1327 in FIG. 9b) of the mounting portion (e.g., 120 in FIG. 4).

[0157] According to one embodiment of the present disclosure, the second plate (e.g., 130 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) has a recess (e.g., 1302 in FIG. 8b) formed in the first direction on a second surface (e.g., 1301 in FIG. 8b) facing the opposite direction to the first direction, and includes a rail (e.g., 131 in FIG. 8b) disposed in the recess (e.g., 1302 in FIG. 8b), wherein the seating portion (e.g., 132 in FIG. 4) is coupled to a movable portion (e.g., 133 in FIG. 8b) movably coupled to the rail and configured to be movable in a direction perpendicular to the first direction with respect to the second plate (e.g., 130 in FIG. 4) through the rail (e.g., 131 in FIG. 8b), and the movable portion (e.g., 133 in FIG. 8b) is the It can be coupled to a control member (e.g., 1333 in FIG. 8b) that controls movement when the center of the external device (e.g., 102 in FIG. 4) and the center of the camera are aligned.

[0158] According to one embodiment of the present disclosure, the mounting portion (e.g., 132 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) is recessed in the first direction to accommodate the external device and includes a receiving space (e.g., 1321 in FIG. 8b); and at least two fixing members (e.g., 1323 in FIG. 8b) on an inner surface (e.g., 1325 in FIG. 9a) surrounding the receiving space, wherein the fixing members (e.g., 1323 in FIG. 9b) may be configured to be inserted or protruded perpendicularly with respect to the inner surface (e.g., 1335 in FIG. 8a).

[0159] According to one embodiment of the present disclosure, the pattern surface (e.g., 22320a in FIG. 7a) of the diffusion plate (e.g., 123 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a plurality of prisms protruding in a direction toward the first surface (e.g., 1213 in FIG. 5b).

[0160] According to one embodiment of the present disclosure, the diffusion plate (e.g., 123 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a pattern sample (e.g., 22330b in FIG. 7b) applied to one side of each of the plurality of prisms.

[0161] According to one embodiment of the present disclosure, the second plate of a display surface reflectance inspection device (e.g., 101 in FIG. 2) includes a third surface (e.g., 1303 in FIG. 9b) facing the first direction, and may include at least two horizontal adjustment parts (e.g., 161 in FIG. 4) for adjusting the height of the surface reflectance inspection device at at least a portion of the corner of the third surface (e.g., 1303 in FIG. 9b).

[0162] According to one embodiment of the present disclosure, the first plate (e.g., 110 in FIG. 4) and the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) are arranged so that their respective centers are aligned with each other, and the second plate (e.g., 130 in FIG. 4) may be larger than the first plate (e.g., 110 in FIG. 4) and the light-emitting part (e.g., 120 in FIG. 4).

[0163] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may include a plate (e.g., 130 of FIG. 4) having a mounting portion (e.g., 132 of FIG. 4) for fixing an external device (e.g., 102 of FIG. 1).

[0164] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may include a light-emitting part (120) that is spaced apart from the plate (e.g., 130 of FIG. 4) and positioned to be movable relative to the plate (e.g., 130 of FIG. 4).

[0165] According to one embodiment of the present disclosure, the light-emitting part (e.g., 120 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a light-emitting part plate (121) having a first surface (e.g., 1213 in FIG. 5d) facing the plate (e.g., 130 in FIG. 4) and a first hole (e.g., 1211 in FIG. 4) formed at the center of the first surface (e.g., 1213 in FIG. 5d).

[0166] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a camera (e.g., 124 in FIG. 4) disposed in the first hole (e.g., 1211 in FIG. 4).

[0167] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 in FIG. 2) may include a plurality of light-emitting elements (122) disposed on the first surface (e.g., 1213 in FIG. 4) to surround the camera (e.g., 124 in FIG. 4) and irradiating light in a first direction toward the plate (e.g., 130 in FIG. 4).

[0168] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) may be configured to capture light emitted from the plurality of light-emitting elements (e.g., 122 of FIG. 4), passing through the pattern surface (e.g., 22320a of FIG. 7a), and reflected to the external device (e.g., 102 of FIG. 1) in correspondence with the pattern.

[0169] According to one embodiment of the present disclosure, the camera may be coupled to the light-emitting plate (e.g., 121 in FIG. 4) by a camera holder (e.g., 1241 in FIG. 4) coupled in a direction opposite to the first surface (e.g., 1213 in FIG. 5b).

[0170] According to one embodiment of the present disclosure, the plate (e.g., 130 in FIG. 4) of a display surface reflectance inspection device (e.g., 101 in FIG. 2) has a recess (e.g., 1302 in FIG. 9b) formed in the first direction, a second surface (e.g., 1301 in FIG. 9b) facing in a direction opposite to the first direction, and a rail (e.g., 131 in FIG. 8b) disposed in the recess, and the mounting portion (e.g., 132 in FIG. 4) is detachably coupled to the rail (e.g., 131 in FIG. 8b) and may be coupled so as to be movable in a horizontal direction with respect to the second surface (e.g., 1301 in FIG. 8b) along the rail (e.g., 131 in FIG. 9b).

[0171] According to one embodiment of the present disclosure, a display surface reflectance inspection device (e.g., 101 of FIG. 2) includes a height adjustment unit (e.g., 140 of FIG. 4) comprising a rod (e.g., 141 of FIG. 4) penetrating one side of the light-emitting plate (e.g., 121 of FIG. 4) and a guide member (e.g., 151 of FIG. 4) penetrating the other side of the light-emitting plate (e.g., 121 of FIG. 4), and the light-emitting plate (e.g., 120 of FIG. 4) may be configured to be movable relative to the plate (e.g., 130 of FIG. 4) along the guide member (e.g., 151 of FIG. 4) and the rod (e.g., 141 of FIG. 4) by the height adjustment unit (e.g., 140 of FIG. 4).

Claims

1. In a display surface reflection light inspection device (101), First plate (110); A second plate (130) positioned at a certain distance from the first plate and having a mounting portion (132) for fixing an external device (102); A light-emitting part (120) disposed between the first plate and the second plate so as to be movable with respect to the first plate or the second plate; and The above-mentioned light-emitting part is, A third plate (121) having a first surface (1213) facing the second plate and a first hole (1211) at the center of the first surface; A diffusion plate (123) disposed between the second plate and the third plate, comprising pattern surfaces (22320a, 22320b) facing the second plate and having a pattern formed thereon, and a second hole (1231) formed in the center; A camera (124) positioned in the first hole of the third plate and capturing a pattern reflected from the external device; and It includes a plurality of light-emitting elements (122) arranged on the first surface to surround the camera and irradiating light in a first direction toward the second plate so as to reflect a pattern to the external device, A display surface reflection light inspection device configured to photograph, through the camera, a pattern reflected to an external device corresponding to the pattern as it passes through the pattern surface after being emitted from the plurality of light-emitting elements.

2. In Paragraph 1, The third plate protrudes toward the second plate from the first surface and includes support walls (1214) spaced apart from each other on both sides of the first hole, A part of the above camera is positioned between the support walls at a location corresponding to the first hole, and A display surface reflection light inspection device in which some of the plurality of light-emitting elements (1221, 1222) are arranged to intersect each other, and other parts of the plurality of light-emitting elements (1223) are spaced apart from the first surface in the direction of the second plate and arranged across the support wall.

3. In Paragraph 1 or 2, The pattern of the above-mentioned diffusion plate is formed of a plurality of prism structures protruding uniformly in one direction toward the first surface, and The above-described diffusion plate is configured to be detachable from the light-emitting part. A display surface reflection light inspection device.

4. In any one of paragraphs 1 to 3, The light-emitting part includes a frame structure (127) that accommodates the third plate in a direction toward the first plate so as to surround the corner of the third plate, and has at least one first opening (125) formed on at least one side. The above surface reflectance inspection device further comprises a height adjustment unit (140) including a rod (141) positioned across the first opening so that the light-emitting part can move between the first plate or the second plate.

5. In Paragraph 4, The first plate has a second opening (112) formed at a position corresponding to the first opening, and the rod of the height adjustment part extends across the second opening. The height adjustment unit above is, A moving member (145) positioned in the first opening to surround a portion of the rod and allow the light-emitting part to move along the rod; A rotating member (142) comprising a rotating handle (1421) rotatably coupled to one end of the rod extending across the second opening; and A display surface reflection inspection device in which the rotating member rotates the rod to move the light-emitting part according to the rotation of the above-mentioned rotating handle.

6. In Paragraph 5, The above frame structure includes at least two guide holes (1261, 1262, 1263, 1264) at the corners, and The above surface reflectance inspection device comprises at least two guide members (151, 152, 153, 154) coupled to the first plate and the second plate at positions corresponding to the at least two guide holes across the at least two guide holes.

7. In any one of paragraphs 1 through 6, The above-mentioned mounting portion is a display surface reflection light inspection device coupled to be rotatable in a horizontal direction with respect to the second plate.

8. In any one of paragraphs 1 through 7, A display surface reflection light inspection device in which the above-mentioned mounting portion is detachably coupled to the third plate through a groove (1328) formed on the back surface of the above-mentioned mounting portion.

9. In any one of paragraphs 1 through 8, The second plate has a recess (1302) formed on a second surface (1301) facing in the opposite direction to the first direction, which is recessed in the first direction, and includes a rail (131) disposed in the recess. The above-mentioned seating portion is coupled to a moving portion (133) that is movably coupled to the rail, and is configured to be movable through the rail in a direction perpendicular to the first direction with respect to the second plate. A display surface reflection inspection device coupled to a control member (1333) that controls movement when the center of the external device and the center of the camera are aligned, and the moving part is coupled to the rail so as to be movable.

10. In any one of paragraphs 1 through 9, The above-mentioned seating portion A receiving space (1321) that is recessed in the first direction to accommodate the external device; and The inner surface (1325) surrounding the above-mentioned receiving space includes at least two fixing members (1323, 1324), and A display surface reflection light inspection device configured such that the above-mentioned fixed member can be inserted or protruded vertically with respect to the inner surface.

11. In any one of paragraphs 1 through 10, A display surface reflection light inspection device comprising a plurality of protrusions (22321a, 22322b) protruding in a direction toward the first surface and a plurality of recesses (22322a, 22322b) recessed in a direction opposite to the protrusions, wherein the pattern surface of the diffusion plate comprises a plurality of protrusions (22321a, 22322b) protruding in a direction toward the first surface.

12. In Paragraph 11, The above-mentioned diffusion plate is a display surface reflection light inspection device comprising a pattern sample (22330b) applied to each side of the plurality of prisms.

13. In any one of paragraphs 1 through 12, A display surface reflectance inspection device comprising: the second plate having a third surface (1303) facing the first direction; and at least two horizontal adjustment parts (161, 162, 163, 164) for adjusting the height of the surface reflectance inspection device at at least a portion of the corners of the third surface.

14. In any one of paragraphs 1 through 13, The first plate and the light-emitting part are arranged so that their respective centers are aligned with each other, and The second plate is a display surface reflection light inspection device larger than the first plate and the light-emitting part.

15. In any one of paragraphs 1 through 14, The above camera is a display surface reflection inspection device coupled to the light-emitting plate by a camera holder (1241) coupled in a direction opposite to the first surface.

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