Near-eye display device display performance test carrier device

Abstract

The utility model embodiment provides a kind of near-eye display equipment display performance test carrier device, for fixing near-eye display equipment, optical testing instrument and adjusting the position of near-eye display equipment, including basic platform, and set on near-eye display equipment carrier platform of basic platform, optical testing instrument carrier platform.Optical testing instrument carrier platform is used to fix optical testing instrument;Near-eye display equipment carrier platform is used to fix near-eye display equipment and adjust the position and pitch angle of the near-eye display equipment, so that the lens optical axis of near-eye display equipment is adjusted to the straight line where the optical testing instrument macro lens optical axis is located.The utility model embodiment can realize the purpose of aligning the optical axis of near-eye display equipment lens and the optical axis of optical testing instrument macro lens.

Description

Technical Field

[0001] This utility model relates to the field of optical testing technology for display devices, and in particular to a testing device for the display performance of near-eye display devices. Background Technology

[0002] Unlike traditional non-wearable flat or curved electronic display screens, near-eye virtual display devices work by focusing and magnifying the image of a micro-display panel through lenses before transmitting it to the human eye. To ensure display quality, near-eye virtual display devices require display performance testing during manufacturing to optimize the optical path design. Due to the different image imaging principles, the display performance testing of near-eye virtual display devices cannot refer to the standards for non-wearable display devices. Instead, it is necessary to refer to section 5.2.3 of the published international standard IEC 63145-20-20 Wearable Display Devices 20-20: Basic Test Methods - Image Quality: "The DUT shall be mounted on a stable platform to ensure image stability. The LMD position relative to the DUT shall be moved, and it can use a five-axis system."

[0003] The biggest challenge in testing near-eye virtual display devices is maintaining the alignment of the central optical axes of each lens on the LMD and DUT, especially during the imaging phase. If the optical axes are misaligned, the lens cannot be perpendicularly aligned with the focal plane of the DUT lens, leading to inaccurate test results. Currently, there are no domestic standards specifying the parameters and structure of the testing device. We can only refer to the international standard IEC 63145-20-20 for wearable display devices (20-20) regarding the stage. The basic characteristics of the testing device for near-eye virtual display devices are: a three-axis (x, y, z) translation stage and a dual-axis tilting device, which must meet the test conditions for five-axis movement of the DUT. After fixing and adjusting the DUT, the device should maintain the optical axes of the DUT lens and LMD lens aligned, and keep the optical axes of the DUT lens parallel to the Z-axis of the three-axis translation stage.

[0004] It is evident that additional positioning and adjustment devices are required before or during testing to maintain the Device Under Test (DUT) in a relatively stable state within the testing environment or apparatus, and to ensure that the optical axis of the Light Measuring Device (LMD) aligns with the optical axis of each lens on the DUT. However, current technology lacks a near-eye virtual display device performance testing platform that meets these fundamental characteristics. This makes it difficult to fix the near-eye virtual display device during performance testing during manufacturing, and difficult to adjust and maintain the alignment of the LMD and DUT lenses' optical axes. Therefore, there is an urgent need for a near-eye virtual display device performance testing platform that can maintain the optical axes of the DUT lenses and LMD lenses aligned after the DUT and LMD are fixed and adjusted. Utility Model Content

[0005] In view of the above problems, the present invention provides an embodiment of the present invention to provide a near-eye display device display performance testing device that overcomes or at least partially solves the above problems. The device includes: a base platform, and a near-eye display device stage and an optical testing instrument stage disposed on the base platform.

[0006] The near-eye display device stage and the optical testing instrument stage are arranged opposite to each other; a near-eye display device is arranged on the near-eye display device stage; and an optical testing instrument is arranged on the optical testing instrument stage.

[0007] The near-eye display device has a fixed bracket on its upper part for fixing the near-eye display device. The fixed bracket includes a first panel and a first L-shaped support plate and a second L-shaped support plate disposed on the first panel. The first L-shaped support plate has a strip groove. The second L-shaped support plate is slidably disposed in the strip groove and is connected to the near-eye display device for adjusting the pitch angle of the near-eye display device when sliding in the vertical direction.

[0008] Optionally, the lower part of the stage of the near-eye display device is provided with a three-axis displacement mechanism for driving the near-eye display device to perform three-axis displacement.

[0009] The three-axis displacement mechanism includes: a Y-axis lifting displacement mechanism connected to the base platform, a Z-axis guide rail displacement mechanism disposed above the Y-axis lifting displacement mechanism, and an X-axis guide rail displacement mechanism disposed above the Z-axis guide rail displacement mechanism.

[0010] The fixed bracket is positioned above the X-axis guide rail displacement mechanism.

[0011] Optionally, the Y-axis lifting displacement mechanism includes:

[0012] The first base plate is fixed on the foundation platform and is used to fix the stage of the near-eye display device.

[0013] A scissor lifting assembly is disposed above the first base plate, and a first top plate is disposed above the scissor lifting assembly.

[0014] Optionally, the Z-axis guide rail displacement mechanism includes:

[0015] A second guide rail base plate connected above the first top plate, a second linear guide rail disposed above the second guide rail base plate, and a second guide rail slider and a second braking mechanism slidably disposed on the second linear guide rail.

[0016] The second guide rail slider is arranged side by side with the second braking mechanism and connected below the X-axis guide rail displacement mechanism.

[0017] Optionally, the X-axis guide rail displacement mechanism includes:

[0018] A first guide rail base plate connected above the second guide rail slider and the second braking mechanism, a first linear guide rail disposed on the first guide rail base plate, and a first guide rail slider and a first braking mechanism slidably disposed on the first linear guide rail.

[0019] The first guide rail slider and the first braking mechanism are arranged side by side and connected to the bottom of the first panel of the fixed bracket.

[0020] Optionally, the scissor lifting assembly includes:

[0021] A scissor lifting assembly and an adjusting assembly connected to the scissor lifting assembly;

[0022] The scissor lifting assembly includes two X-shaped lifting brackets, a first guide rail fixing block, a first circular rail slider, and a third guide rail fixing block disposed at the upper end of the X-shaped lifting brackets, and a second guide rail fixing block, a second circular rail slider, and a fourth guide rail fixing block disposed at the lower end of the X-shaped lifting brackets, with a cylindrical guide rail disposed in the opening of the guide rail fixing block and the circular rail slider.

[0023] The first circular rail slider has a bearing mounting hole in its central area.

[0024] The adjustment assembly includes a lead screw bearing installed in the first circular rail slider bearing mounting hole, an adjustment rod mounting block with a lead screw nut mounting hole installed between the two third guide rail fixing blocks, a lead screw nut installed in the lead screw nut mounting hole of the adjustment rod mounting block, a ball screw installed in the lead screw bearing shaft hole and the lead screw nut thread, and an adjustment knob installed at one end of the ball screw.

[0025] Optionally, the base platform includes: a third panel, supporting side plates disposed on the front and rear sides below the third panel, and at least one detachable support bracket disposed below the third panel and supporting the third panel; the third panel is provided with a first fixing hole for connecting to the near-eye display device stage and a second fixing hole for connecting to the optical testing instrument stage.

[0026] Optionally, the optical testing instrument stage includes:

[0027] The first foot pad is inserted into the second fixing hole.

[0028] A second base plate is disposed above the first foot pad; a hexagonal support stud is disposed above the second base plate; a second panel for supporting optical testing instruments is disposed above the hexagonal support stud; a macro lens bracket base plate is disposed above the second panel; and a macro lens bracket is disposed above the macro lens bracket base plate with one end extending out.

[0029] Optionally, a single-sided slotted plate extends out from one side of the first panel; the first base plate has a third fixing hole corresponding to the first fixing hole, and the first base plate is fixed to the third panel by inserting fixing screws into the first fixing hole and the third fixing hole.

[0030] Optionally, the upper surface of the first panel and the upper and lower surfaces of the second L-shaped support plate are covered with a layer of anti-slip damping material.

[0031] The embodiments of this utility model have the following advantages:

[0032] ① The stage of the optical testing instrument is equipped with a macro lens bracket, which is used to support the macro lens in the vertical direction, so that the optical axis of the macro lens remains stable to provide a stable reference optical axis.

[0033] ② A fixed bracket is provided on the near-eye display device platform to fix the near-eye display device, which can ensure that the near-eye display device remains relatively stable during the test.

[0034] ③ The stage of the near-eye display device can adjust the position of the near-eye display device by translation in the corresponding direction; it can also adjust the pitch angle of the near-eye display device by the second L-shaped support plate; thereby adjusting the optical axis of the lens of the near-eye display device to the straight line of the reference optical axis provided by the macro lens of the optical testing instrument, so as to align the optical axis. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of a near-eye display device display performance testing carrier provided in this embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the X / Z axis guide rail displacement mechanism of the near-eye display device stage provided in this embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the Y-axis lifting displacement mechanism of the stage of the near-eye display device provided in this embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the stage portion of the optical testing instrument provided in this embodiment of the utility model;

[0039] Figure 5 This is a schematic diagram of the structure of the basic platform provided in the embodiment of this utility model;

[0040] Figure 6 This is a schematic diagram of a near-eye display device display performance testing carrier provided in this embodiment of the invention, used to fix the DUT and LMD.

[0041] Figure label:

[0042] 1-Near-eye display device stage; 110-First L-shaped support plate; 120-Second L-shaped support plate; 130-First panel; 131-Single-sided slotted plate; 140-X-axis guide rail displacement mechanism; 141-First guide rail slider; 142-First braking mechanism; 143-First linear guide rail; 144-First guide rail base plate; 150-Z-axis guide rail displacement mechanism; 151-Second guide rail slider; 152-Second braking mechanism; 153-Second linear guide rail; 154-Second guide rail base plate; 160-Y-axis lifting displacement mechanism; 170-First top plate; 180-Scissors lifting assembly; 1801-First guide rail fixing block; 1802-Second guide rail fixing block; 1803-Third guide rail... 1804-Fourth guide rail fixing block; 1805-First circular rail slider; 1806-Second circular rail slider; 1807-Cylindrical guide rail; 1808-X-type lifting bracket; 1809-Screw bearing; 1810-Screw nut; 1811-Adjusting rod mounting block; 1812-Ball screw; 1813-Adjusting knob; 190-First base plate; 2-Optical testing instrument stage; 210-Macro lens bracket; 220-Macro lens bracket base plate; 230-Second panel; 240-Hexagonal support stud; 250-Second base plate; 260-First foot pad; 3-Base platform; 310-Third panel; 320-First support side plate; 330-First support bracket. Detailed Implementation

[0043] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0044] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The display performance testing device for near-eye display devices provided in this utility model will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0048] Reference Figure 1The near-eye display device display performance testing device provided in this embodiment includes: a base platform (3), and a near-eye display device stage (1) and an optical testing instrument stage (2) disposed on the base platform (3).

[0049] The near-eye display device stage (1) and the optical testing instrument stage (2) are arranged opposite to each other; a near-eye display device is provided on the near-eye display device stage (1); an optical testing instrument is provided on the optical testing instrument stage (2).

[0050] The near-eye display device stage (1) is provided with a fixed bracket on its upper part for fixing the near-eye display device; the fixed bracket includes a first panel (130) and a first L-shaped support plate (110) and a second L-shaped support plate (120) disposed on the first panel (130); the first L-shaped support plate (110) is provided with a strip groove; the second L-shaped support plate (120) is slidably disposed in the strip groove, and the second L-shaped support plate (120) is connected to the near-eye display device for adjusting the pitch angle of the near-eye display device when sliding in the up and down direction.

[0051] In the above embodiments, the near-eye display device stage and the optical testing instrument stage are arranged opposite to and parallel to each other on the base platform to form the near-eye display device display performance testing device. The near-eye display device stage includes a fixed bracket composed of a first panel, a first L-shaped support plate, and a second L-shaped support plate, which is used to fix the near-eye display device. The optical testing instrument is supported and fixed by the optical testing instrument stage.

[0052] Understandable, refer to Figure 1 or Figure 6 The first L-shaped support plate has a slotted section in the middle, with one end bent at a 90-degree angle. A wing screw is inserted into the short section of the slot at the bent end, and a wing nut is used to secure it to the top of the first panel. The second L-shaped support plate has one end bent at a 90-degree angle and has a screw hole. A wing screw is inserted into the screw hole, and a wing nut is used to install it into the long section of the slot of the first L-shaped support plate. After loosening the corresponding wing screw, the second L-shaped support plate can slide up and down within the long section of the slot of the first L-shaped support plate.

[0053] Understandable, refer to Figure 6The AR / VR glasses can be supported by a first panel, and the first L-shaped support plate connected to the AR glasses horizontally expands the ear loops of the AR glasses, restricting their free movement in the left and right directions. The second L-shaped support plate connected to the AR glasses vertically supports the ear loops of the AR glasses, thus temporarily supporting and fixing the AR / VR glasses. It is understood that the ear loops refer to the ear loops on the temples / headbands of the AR / VR glasses; when the near-eye display device being tested is AR glasses, the ear loops are specifically the ear loops on the temples of the AR glasses at the end furthest from the frame; when the near-eye display device being tested is VR glasses, the ear loops are specifically the ear loops on the headbands of the VR glasses at the end furthest from the frame. The height of the ear loops can be adjusted by sliding the second L-shaped support plate up and down, thereby adjusting the pitch angle of the near-eye display device to adjust the pitch angle of the lens optical axis. The first L-shaped support plate can be a single, separate piece and / or integrally connected, and the second L-shaped support plate can also be a single, separate piece and / or integrally connected. Those skilled in the art can select the appropriate type according to actual needs, and this embodiment of the invention does not impose any limitations on this.

[0054] In practical applications, refer to Figure 1 and Figure 6 The near-eye display device stage (1) is provided with a three-axis displacement mechanism at the bottom, which is used to drive the near-eye display device to perform three-axis displacement.

[0055] The three-axis displacement mechanism includes: a Y-axis lifting displacement mechanism (160) connected to the base platform (3), a Z-axis guide rail displacement mechanism (150) disposed above the Y-axis lifting displacement mechanism (160), and an X-axis guide rail displacement mechanism (140) disposed above the Z-axis guide rail displacement mechanism (150).

[0056] The fixed bracket is positioned above the X-axis guide rail displacement mechanism (140).

[0057] Understandable, refer to Figure 1 By using the stacked installation method described in the above specific application, the various components are stacked vertically, ensuring that the X-axis guide rail displacement mechanism, Z-axis guide rail displacement mechanism, and Y-axis lifting displacement mechanism do not obstruct each other during translational movement. The fixed bracket is installed above these three displacement structures. Therefore, when these three displacement structures move, they can drive the AR / VR glasses, temporarily supported and fixed on the fixed bracket, to perform corresponding forward / backward, left / right translational movements and up / down lifting movements to adjust the relative position of the AR / VR glasses.

[0058] In practical applications, refer to Figure 1 The Y-axis lifting displacement mechanism (160) includes:

[0059] The first base plate (190) is fixed on the base platform (3) and is used to fix the near-eye display device stage (1).

[0060] A scissor lifting assembly (180) is disposed above the first base plate (190), and a first top plate (170) is disposed above the scissor lifting assembly (180).

[0061] Understandable, refer to Figure 1 In the above application, the lifting direction of the Y-axis lifting displacement mechanism is parallel to the Y-axis direction. The Y-axis lifting displacement mechanism includes a first top plate, a first bottom plate, and a scissor lifting assembly fixed between the two. The first top plate is fixed to the lower surface of the second guide rail bottom plate. Therefore, under the drive of external force, the scissor lifting assembly can be driven to rotate relative to each other and convert the rotational motion into lifting motion. This drives the first top plate above the scissor lifting assembly, the X-axis guide rail displacement mechanism, and the Z-axis guide rail displacement mechanism to move up and down, thereby driving the AR / VR glasses fixed above the first panel to move up and down in a controllable manner (Y-axis direction) to adjust their height position.

[0062] In practical applications, refer to Figure 1 and Figure 2 The Z-axis guide rail displacement mechanism (150) includes:

[0063] A second guide rail base plate (154) connected above the first top plate (170), a second linear guide rail (153) disposed above the second guide rail base plate (154), and a second guide rail slider (151) and a second braking mechanism (152) slidably disposed on the second linear guide rail (153).

[0064] The second guide rail slider (151) and the second braking mechanism (152) are arranged side by side and connected below the X-axis guide rail displacement mechanism (140).

[0065] Similarly, it is understandable to refer to Figure 1 and Figure 2In the above application, the Z-axis guide rail displacement mechanism is set on the lower surface of the first guide rail base plate. Driven manually, the Z-axis guide rail displacement mechanism slides back and forth on the first linear guide rail via a second guide rail slider on the lower surface of the first guide rail base plate, thereby causing the first guide rail base plate to translate back and forth. Since the second guide rail slider and the second braking mechanism are arranged side-by-side and mounted on the same surface, they are relatively stationary. Therefore, the sliding speed can be controlled by adjusting the open / closed state of the brake pads of the second braking mechanism to perform coarse and / or fine adjustments. It is easy to understand that when the braking mechanism is fully open, the sliding of the second guide rail slider is not braked, allowing for rapid coarse adjustments. When the braking mechanism is closed, the sliding of the second guide rail slider is braked, allowing for slow fine adjustments. After moving to the predetermined position, the position of the second guide rail slider and the second braking mechanism can be locked by moving the lever of the second braking mechanism to the maximum clamping angle, thereby fixing the relative position of the AR / VR glasses. Furthermore, anti-disengagement limit screws can be provided at both ends of the second guide rail base plate below the second linear guide rail to prevent the second guide rail slider from derailing during translation.

[0066] In practical applications, refer to Figure 2 The X-axis guide rail displacement mechanism (140) includes:

[0067] A first guide rail base plate (144) is connected above the second guide rail slider (151) and the second braking mechanism (152), a first linear guide rail (143) is disposed on the first guide rail base plate (144), and a first guide rail slider (141) and a first braking mechanism (142) are slidably disposed on the first linear guide rail (143).

[0068] The first guide rail slider (141) and the first braking mechanism (142) are arranged side by side and connected to the first panel (130) of the fixed bracket below.

[0069] Understandable, refer to Figure 1 and Figure 2In the above application, by setting an X-axis guide rail displacement mechanism on the lower surface of the first panel, the X-axis guide rail displacement mechanism can be manually driven to slide left and right on the first linear guide rail via the first guide rail slider on the lower surface of the first panel, thereby driving the first panel to translate left and right. Since the first guide rail slider and the first braking mechanism are arranged side by side and installed on the same surface, they are relatively stationary. Therefore, the sliding speed can be controlled by adjusting the release / clamping state of the brake pads of the first braking mechanism to perform coarse and / or fine adjustments. It is easy to understand that when the braking mechanism is fully released, the sliding of the first guide rail slider is not braked, allowing for rapid coarse adjustments. When the braking mechanism is clamped, the sliding of the first guide rail slider is braked, allowing for slow fine adjustments. After moving to the predetermined position, the position of the first guide rail slider and the first braking mechanism can be locked together by moving the lever of the first braking mechanism to the maximum clamping angle, thereby fixing the relative position of the AR / VR glasses. Furthermore, anti-disengagement limit screws can be provided at both ends of the first guide rail base plate below the first linear guide rail to prevent the first guide rail slider from derailing during translation.

[0070] It is understood that the X-axis guide rail displacement mechanism and Z-axis guide rail displacement mechanism in the above applications can be dovetail cross-section guide rail slider structure, rectangular cross-section guide rail slider structure, circular cross-section guide rail slider structure, ball / needle roller guide rail groove structure, etc. Those skilled in the art can select the appropriate structure according to actual needs, and this embodiment of the present invention does not impose any limitations on this selection.

[0071] In practical applications, refer to Figure 3 The scissor lifting assembly (180) includes:

[0072] The scissor lifting assembly and the adjusting assembly connected to the scissor lifting assembly.

[0073] The scissor lifting assembly includes two X-shaped lifting brackets (1808), a first guide rail fixing block (1801), a first circular rail slider (1805), and a third guide rail fixing block (1803) disposed on the upper end of the X-shaped lifting brackets (1808), a second guide rail fixing block (1802), a second circular rail slider (1806), and a fourth guide rail fixing block (1804) disposed on the lower end of the X-shaped lifting brackets (1808), and a cylindrical guide rail (1807) disposed in the openings of the guide rail fixing blocks and the circular rail sliders.

[0074] The first circular rail slider (1805) has a bearing mounting hole in its central area.

[0075] The adjustment assembly includes a lead screw bearing (1809) disposed in the bearing mounting hole of the first circular rail slider (1805), an adjustment rod mounting block (1811) disposed between two third guide rail fixing blocks (1803) with a lead screw nut mounting hole, a lead screw nut (1810) disposed in the lead screw nut mounting hole of the adjustment rod mounting block (1811), a ball screw (1812) disposed in the shaft hole of the lead screw bearing (1809) and in the thread of the lead screw nut (1810), and an adjustment knob (1813) disposed at one end of the ball screw (1812).

[0076] Understandably, in the specific applications mentioned above, refer to Figure 3 and Figure 1 Each X-shaped lifting bracket in the scissor lift assembly consists of two scissor support plates connected by a corresponding central pivot. When subjected to external force, the two scissor support plates in the X-shaped lifting bracket are forced to rotate in opposite directions around the central pivot. It is easy to understand that this counter-rotation of the two scissor support plates changes the lateral angle between them. Furthermore, since the X-shaped lifting bracket is also connected to a plate-end pivot, which is fixed to the sides of the first guide rail fixing block, the second guide rail fixing block, the first circular rail slider, and the second circular rail slider; the first and third guide rail fixing blocks are fixed to the lower surface of the first top plate; and the second and fourth guide rail fixing blocks are fixed to the upper surface of the first bottom plate; therefore, the relative rotation of the scissor support plates will change the vertical distance between the first top plate and the first bottom plate, causing the first top plate to move up and down relative to the first bottom plate.

[0077] Similarly, it is understandable that in the specific applications mentioned above, reference... Figure 3 , Figure 1 and Figure 6 The rotational force is transmitted through a ball screw and an adjusting knob at one end of the ball screw. Under the action of this rotational force, the screw nut in the screw nut mounting hole of the adjusting rod mounting block converts the helical motion of the ball screw into a linear arc motion of the first circular track slider around the central axis. This forces the two cross-connected scissor support plates on the plate end axis to rotate in opposite directions around the central axis, thereby changing the lateral angle between the two cross-connected scissor support plates and thus changing the vertical distance between the first top plate and the first bottom plate. In other words, it forces the first top plate to move up and down relative to the first bottom plate. The up and down movement of the first top plate will drive all the components above and the AR / VR glasses to move up and down as well.

[0078] In practical applications, refer to Figure 5 The components of the basic platform (3) specifically include:

[0079] The third panel (310) includes support side plates (320) located on the front and rear sides below the third panel (310), and at least one detachable support bracket (330) located below the third panel (310) and supporting the third panel (310). The third panel (310) is provided with a first fixing hole for connecting to the near-eye display device stage (1) and a second fixing hole for connecting to the optical testing instrument stage (2).

[0080] Understandably, in the above applications, reference Figure 5 The third panel is provided with first and second fixing holes for fixing the near-eye display device stage and the optical testing instrument stage. Therefore, the near-eye display device stage and the optical testing instrument stage can be directly supported and fixed via the third panel. The weight of the near-eye display device stage and the optical testing instrument stage is indirectly supported by the supporting side plates and support brackets, and the relative height of their bottom surfaces is set at a suitable height. Furthermore, the first and second fixing holes are parallel and spaced apart on the third panel, thus ensuring that the near-eye display device stage and the optical testing instrument stage are fixed parallel to each other on the upper surface of the third panel of the base platform. This eliminates the need to adjust the horizontal rotation angle of the near-eye display device, thus omitting the vertical axis in the standard "five-axis" configuration.

[0081] Understandably, in the above applications, the base platform is used to temporarily support and fix the display device stage and the optical testing instrument stage. The base platform can be made of acrylic sheet by cutting and bending it as a whole and / or by bonding acrylic sheets cut to the corresponding size; it can also be made of PC endurance sheet by cutting and bending it as a whole and / or by bonding PC endurance sheets cut to the corresponding size; it can also be made of carbon fiber cloth by cutting, bending it as a whole and curing it and / or by bonding carbon fiber sheets cut to the corresponding size; or it can be made of alloy material by processing with corresponding metal processing technology. To prevent the third panel from deforming downwards, an "inverted T-shaped" and / or "I-shaped" support bracket can be used to support the lower surface of the third panel; the support bracket can be made of acrylic sheet and / or PC endurance sheet and / or carbon fiber cloth and / or carbon fiber and / or alloy material by processing with a similar process to those described above. Those skilled in the art can select according to actual needs, and this utility model embodiment does not limit this.

[0082] Taking the testing of relatively heavy VR glasses as an example, during testing, the base platform is installed on a relatively level work surface, and the support bracket is installed on the lower surface of the third panel to assist in supporting the weight of the near-eye display device stage and the optical testing instrument stage. During installation, the third panel of the base platform can also be adjusted to the horizontal plane of the location, so that the near-eye display device stage and the optical testing instrument stage are both installed horizontally. The near-eye display device stage and the optical testing instrument stage are fixed into the corresponding fixing holes, ensuring that the near-eye display device stage and the optical testing instrument stage are set relative to each other and parallel.

[0083] Understandable, refer to Figure 1 and Figure 6 The near-eye display device stage and the optical testing instrument stage are arranged horizontally, parallel to each other, and spaced apart on the upper surface of the third panel. Therefore, the near-eye display device stage and the optical testing instrument stage can be placed in the same virtual three-dimensional coordinate system, allowing the AR / VR glasses to move parallel to the three axes. It is understood that the short central axis of the third panel of the base platform should be parallel to the X-axis of the virtual three-dimensional coordinate system, and the long central axis should be parallel to the Z-axis of the virtual three-dimensional coordinate system.

[0084] In practical applications, refer to Figure 4 The optical testing instrument stage (2) includes:

[0085] The first foot pad (260) is inserted into the second fixing hole.

[0086] A second base plate (250) is disposed above the first foot pad (260); a hexagonal support stud (240) is disposed above the second base plate (250); a second panel (230) for supporting optical testing instruments is disposed above the hexagonal support stud (240); a macro lens bracket base plate (220) is disposed above the second panel (230); and a macro lens bracket (210) is disposed above the macro lens bracket base plate (220) with one end extending out.

[0087] Understandable, refer to Figure 1 , Figure 5 and Figure 6 In the above application, the center lines connecting the four holes of the second fixing position form a rectangle, and the long side of the rectangle is parallel to the long side of the third panel of the base platform. The diameter of the second fixing hole should not be less than the outer diameter of the first foot pad to ensure that the first foot pad can be inserted into the fixing hole of the optical testing instrument stage. Those skilled in the art can also set the relative positions of these fixing holes according to actual needs, and this embodiment of the utility model does not limit this.

[0088] Similarly, it is understandable that in the above applications, reference... Figure 6 , Figure 4 and Figure 1 The main body of the optical testing instrument (imaging colorimeter) can be directly supported by the second panel. A macro lens bracket and a corresponding macro lens bracket base plate are provided above the second panel to further support and fix the macro lens of the imaging colorimeter. Hexagonal support studs are installed at the four corners of the lower surface of the second panel to raise its relative height, thus setting the relative height of the imaging colorimeter at a suitable position to accommodate the relative height of the first panel of the near-eye display device's stage. The height of the hexagonal support studs can be selected by those skilled in the art according to actual needs, and this embodiment of the invention does not limit this. The first foot pad can be cylindrical or frustum-shaped; those skilled in the art can choose according to actual needs, and this embodiment of the invention does not limit this.

[0089] During the installation of the optical testing instrument, by controlling the distance from the lowest point of the macro lens bracket support surface to the upper surface of the second panel to be consistent with the distance from the lowest point of the macro lens outer surface to the third panel, the optical axis of the macro lens of the optical testing instrument can be made parallel to the Z-axis of the virtual three-dimensional coordinate system. This provides a stable reference optical axis parallel to the Z-axis of the virtual three-dimensional coordinate system, enabling faster alignment of the AR / VR glasses lenses with the reference optical axis (i.e., the optical axis of the macro lens of the optical testing instrument) when adjusting the position of the AR / VR glasses. The support surface of the macro lens bracket can also be covered with an anti-slip damping material layer; those skilled in the art can choose according to actual needs, and this embodiment of the invention does not impose any limitations on this.

[0090] In practical applications, refer to Figure 1 , Figure 6 A single-sided slotted plate (131) extends out from one side of the first panel (130); the first base plate (190) has a third fixing hole corresponding to the first fixing hole, and the first base plate (190) is fixed to the third panel (310) by inserting fixing screws into the first fixing hole and the third fixing hole.

[0091] Understandable, refer to Figure 1 , Figure 6By providing a single-sided slotted plate with 3 to 5 equally spaced slots extending from one side of the first panel, the first L-shaped support plate can be fixed in slots at different positions on the single-sided slotted plate to accommodate AR / VR glasses of different types and sizes. For larger VR glasses, the first L-shaped support plate can be removed and installed in the slot at the end furthest from the first panel during fixing; for smaller VR glasses, the first L-shaped support plate can be removed and installed in the slot at the end closest to the first panel, or in the slot in the middle position during fixing.

[0092] Similarly, it is understandable to refer to Figure 5 , Figure 1 and Figure 6 The first base plate has a third fixing hole corresponding to the first fixing hole on the third panel, meaning the hole spacing and diameter of the third fixing hole are the same as those of the first fixing hole. Therefore, the first base plate can be fixed to the third panel by inserting fixing screws into the first fixing hole and the third fixing hole and tightening the screws.

[0093] In practical applications, refer to Figure 1 and Figure 6 An anti-slip damping material layer is laid on the upper surface of the first panel (130) and the upper and lower surfaces of the second L-shaped support plate (120).

[0094] Understandably, in the above applications, laying an anti-slip damping material layer can prevent AR / VR glasses (especially for heavier VR glasses) from sliding uncontrollably due to inertia when translating in the Z-axis direction. Since AR / VR glasses are made of plastic and have a lower hardness than metal, it can also prevent wear at the contact points between the AR / VR glasses and the first panel and the second L-shaped support plate.

[0095] In specific applications of the above embodiments, when installing and fixing AR / VR glasses, the test engineer uses a near-eye display device stage to support the main body of the AR / VR glasses via the bearing plane provided by the first panel; the first L-shaped support plate horizontally opens and maintains the support of the earpieces of the AR / VR glasses to restrict the free movement of the AR / VR glasses in the left and right directions; the second L-shaped support plate supports the earpieces of the AR / VR glasses to prevent them from sliding freely in the vertical direction. Thus, the near-eye display device stage A can be used to temporarily fix the AR / VR glasses. Simultaneously, the second L-shaped support plate can slide up and down in the groove of the first L-shaped support plate after the wing screw / nut is loosened to support the earpieces of the AR / VR glasses at different relative heights, changing the relative height of the earpieces and thus assisting in adjusting the tilt angle of the AR / VR glasses.

[0096] Through some embodiments of this utility model, a test device for near-eye display device display performance is provided, which is used to temporarily support and fix the near-eye display device and the optical testing instrument, and to adjust the relative position of the near-eye display device.

[0097] In some of the above embodiments, reference is made to Figure 6 , Figure 4 and Figure 1 The near-eye display device display performance testing carrier device supports and fixes the main body of the optical testing instrument via the second panel, and supports the macro lens via a macro lens bracket. The device fixes the near-eye display device via the first panel, the first L-shaped support plate, and the second L-shaped support plate. The device adjusts the near-eye display device's front-back (Z-axis), left-right (X-axis), and up-down (Y-axis) positions via the X-axis guide rail displacement mechanism, the Z-axis guide rail displacement mechanism, and the Y-axis lifting displacement mechanism. The second L-shaped support plate assists in adjusting the near-eye display device's pitch angle, thereby aligning the optical axis of the near-eye display device's lens with the optical axis of the macro lens of the optical testing instrument. This improves the focusing speed and accuracy during testing, enhances the precision of acquiring and extracting the test display image, and increases testing efficiency and result accuracy.

[0098] In actual testing, the optical testing instrument can be an imaging colorimeter. The imaging colorimeter connects to a computer host via a USB interface, and the acquired images can be displayed in real-time on a compatible computer monitor. Testers can activate the AR / VR glasses to test mode and fix them on the near-eye display stage. After activating the imaging colorimeter and fixing it on the optical testing instrument stage, and receiving the test signal output by the imaging colorimeter from the computer, the testers can activate the real-time observation mode in the professional optical processing software to determine whether the optical axis of the AR / VR glasses lenses is consistent with the optical axis of the imaging colorimeter's macro lens. Testers use the X-axis guide rail displacement mechanism, Z-axis guide rail displacement mechanism, and Y-axis lifting displacement mechanism to translate the AR / VR glasses left-right (X-axis direction), front-back (Z-axis direction), and up-down (Y-axis direction) directions. After coarse and fine adjustments to the AR / VR glasses' position, the professional optical processing software in real-time observation mode calculates the focus index displayed on the computer monitor to determine whether the alignment of the optical axis meets the requirements of the professional optical processing software.

[0099] In actual testing, after adjusting the XYZ three-axis translation, the optical axis of the AR / VR glasses' lenses may align with the optical axis of the macro lens of the imaging colorimeter to the level required by professional optical processing software (i.e., the optical axis is aligned). However, in most cases, the optical axis of the lenses only intersects with the optical axis of the macro lens of the imaging colorimeter on the (Y, Z) plane. In other words, the optical axis of the AR / VR glasses is merely adjusted to the (Y, Z) plane, and optical axis alignment is not complete. Therefore, after adjusting the XYZ three-axis translation, a second L-shaped support plate is needed to assist in adjusting the tilt angle of the AR / VR glasses' lenses. Testers can display test images on a monitor and first compare the clarity / blurriness of different areas of the captured image on the computer monitor to see if they are basically consistent. If they are basically consistent, the tilt angle adjustment of the optical axis of the AR / VR glasses lens and the macro lens of the imaging colorimeter is completed. Then, the focus index is calculated by professional optical processing software to determine whether the alignment meets the requirements of the professional optical processing software. If the focus index meets the requirements of the professional optical processing software, that is, the alignment of the optical axis meets the requirements of the professional optical processing software, the optical axis alignment is completed. Otherwise, the X-axis guide rail displacement mechanism, Z-axis guide rail displacement mechanism, Y-axis lifting displacement mechanism and the second L-shaped support plate adjust the relative position and tilt angle of the AR / VR glasses until the focus index meets the requirements of the professional optical processing software to complete the optical axis alignment.

[0100] Understandably, the above-described embodiments of this utility model provide a testing device for near-eye virtual display devices that basically conforms to the international standard IEC 63145-20-20 Wearable Display Devices 20-20. This device enables the near-eye virtual display device to be adjusted and kept aligned with the central optical axis of the LMD and DUT lenses during performance testing during the manufacturing process. This, in turn, improves focusing speed and accuracy, enhances the precision of acquiring and extracting the test display image, and increases testing efficiency and accuracy.

[0101] Other components or structures of the near-eye display device display performance testing carrier according to the embodiments of this utility model, such as internal hex screws, hex nuts, wing screws, wing nuts, fixing screw holes, etc., are known to those skilled in the art and will not be described in detail here.

[0102] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0103] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A testing device for the display performance of near-eye display devices, characterized in that, include: The base platform (3), and the near-eye display device stage (1) and the optical testing instrument stage (2) set on the base platform (3); The near-eye display device stage (1) and the optical testing instrument stage (2) are arranged opposite to each other; a near-eye display device is arranged on the near-eye display device stage (1); an optical testing instrument is arranged on the optical testing instrument stage (2); The near-eye display device stage (1) is provided with a fixed bracket on its upper part for fixing the near-eye display device; the fixed bracket includes a first panel (130) and a first L-shaped support plate (110) and a second L-shaped support plate (120) disposed on the first panel (130); the first L-shaped support plate (110) is provided with a strip groove; the second L-shaped support plate (120) is slidably disposed in the strip groove, and the second L-shaped support plate (120) is connected to the near-eye display device for adjusting the pitch angle of the near-eye display device when sliding in the up and down direction.

2. The near-eye display device display performance testing device according to claim 1, characterized in that, The near-eye display device stage (1) is provided with a three-axis displacement mechanism at its lower part, which is used to drive the near-eye display device to perform three-axis displacement; The three-axis displacement mechanism includes: a Y-axis lifting displacement mechanism (160) connected to the base platform (3), a Z-axis guide rail displacement mechanism (150) disposed above the Y-axis lifting displacement mechanism (160), and an X-axis guide rail displacement mechanism (140) disposed above the Z-axis guide rail displacement mechanism (150). The fixed bracket is located above the X-axis guide rail displacement mechanism (140).

3. The near-eye display device display performance testing device according to claim 2, characterized in that, The Y-axis lifting displacement mechanism (160) includes: The first base plate (190) is fixed on the base platform (3) and is used to fix the near-eye display device stage (1). A scissor lifting assembly (180) is disposed above the first base plate (190), and a first top plate (170) is disposed above the scissor lifting assembly (180).

4. The near-eye display device display performance testing device according to claim 3, characterized in that, The Z-axis guide rail displacement mechanism (150) includes: A second guide rail base plate (154) connected above the first top plate (170), a second linear guide rail (153) disposed above the second guide rail base plate (154), and a second guide rail slider (151) and a second braking mechanism (152) slidably disposed on the second linear guide rail (153). The second guide rail slider (151) and the second braking mechanism (152) are arranged side by side and connected below the X-axis guide rail displacement mechanism (140).

5. The near-eye display device display performance testing device according to claim 4, characterized in that, The X-axis guide rail displacement mechanism (140) includes: A first guide rail base plate (144) is connected above the second guide rail slider (151) and the second braking mechanism (152), a first linear guide rail (143) is disposed on the first guide rail base plate (144), and a first guide rail slider (141) and a first braking mechanism (142) are slidably disposed on the first linear guide rail (143). The first guide rail slider (141) and the first braking mechanism (142) are arranged side by side and connected to the first panel (130) of the fixed bracket below.

6. The near-eye display device display performance testing device according to claim 3, characterized in that, The scissor lifting assembly (180) includes: A scissor lifting assembly and an adjusting assembly connected to the scissor lifting assembly; The scissor lifting assembly includes two X-shaped lifting brackets (1808), a first guide rail fixing block (1801), a first circular rail slider (1805), and a third guide rail fixing block (1803) disposed at the upper end of the X-shaped lifting brackets (1808), a second guide rail fixing block (1802), a second circular rail slider (1806), and a fourth guide rail fixing block (1804) disposed at the lower end of the X-shaped lifting brackets (1808), and a cylindrical guide rail (1807) disposed in the openings of the guide rail fixing blocks and the circular rail sliders. The first circular rail slider (1805) has a bearing mounting hole in its central area; The adjustment assembly includes a lead screw bearing (1809) disposed in the bearing mounting hole of the first circular rail slider (1805), an adjustment rod mounting block (1811) with a lead screw nut mounting hole disposed between the two third guide rail fixing blocks (1803), a lead screw nut (1810) disposed in the lead screw nut mounting hole of the adjustment rod mounting block (1811), a ball screw (1812) disposed in the shaft hole of the lead screw bearing (1809) and the thread of the lead screw nut (1810), and an adjustment knob (1813) disposed at one end of the ball screw (1812).

7. The near-eye display device display performance testing device according to claim 3, characterized in that, The base platform (3) includes: a third panel (310), support side plates (320) disposed on the front and rear sides below the third panel (310), and at least one detachable support bracket (330) disposed below the third panel (310) and supporting the third panel (310); the third panel (310) is provided with a first fixing hole for connecting to the near-eye display device stage (1) and a second fixing hole for connecting to the optical testing instrument stage (2).

8. The near-eye display device display performance testing device according to claim 7, characterized in that, The optical testing instrument stage (2) includes: The first foot pad (260) is inserted into the second fixing hole; A second base plate (250) is disposed above the first foot pad (260); a hexagonal support stud (240) is disposed above the second base plate (250); a second panel (230) for supporting optical testing instruments is disposed above the hexagonal support stud (240); a macro lens bracket base plate (220) is disposed above the second panel (230); and a macro lens bracket (210) is disposed above the macro lens bracket base plate (220) with one end extending out.

9. The near-eye display device display performance testing device according to claim 7, characterized in that, The first panel (130) has a single-sided slotted plate (131) extending out from one side; the first base plate (190) has a third fixing hole corresponding to the first fixing hole, and the first base plate (190) is fixed to the third panel (310) by inserting fixing screws into the first fixing hole and the third fixing hole.

10. The near-eye display device display performance testing apparatus according to claim 1 or 2, characterized in that, The upper surface of the first panel (130) and the upper and lower surfaces of the second L-shaped support plate (120) are covered with a layer of anti-slip damping material.

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