Micro LED micro display screen divergence angle testing device

Abstract

The utility model discloses a Micro LED micro display screen divergence angle testing device. The device comprises a bearing base; a vertical rod is longitudinally connected to the bearing base in a sliding mode. The vertical rod is connected with a limiting device for limiting the vertical rod; an XYZtheta four-axis platform used for adjusting the horizontal position, the height position and the inner angle in the horizontal direction is mounted on the bearing base; a display screen fixing vertical frame for detachably fixing a micro display screen is mounted above the XYZ theta four-axis platform; the vertical rod is provided with a plurality of vertically-arranged inserting hole sets. A probe is inserted into one of the multiple groups of insertion hole groups; and the probe is connected with the spectrograph through an optical fiber. According to the scheme provided by the utility model for the divergence angle test of the Micro LED micro display, the visual angle detection of a backlight type display screen or a screen with lower brightness can be compatible; according to the invention, the divergence angle of any position of the active light-emitting micro display screen can be tested, and detection of ultrahigh brightness can be supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to a display screen testing device, specifically relates to a kind of Micro LED micro display screen divergence angle testing device. BACKGROUND

[0002] With the popularity of mobile internet and smart devices, various wearable devices are also rapidly developing. How to achieve better display in small size devices is increasingly becoming a core demand in many application fields, and the market demand for micro display devices is increasing.

[0003] Micro-LED display technology refers to a display technology that uses natural light-emitting microscale LED as a light-emitting pixel unit and assembles it to a driving panel to form a high-density LED array. Compared with LCD and OLED, Micro-LED chip has the advantages of small size, high integration and self-luminous, and has greater advantages in brightness and resolution, contrast, energy consumption, service life, response speed and thermal stability.

[0004] Traditional testers can only test backlight displays (such as liquid crystal, LCD) or lower brightness screens (such as OLED), and cannot comprehensively provide brightness, chrominance, contrast and spectral information. There is no divergence angle tester specifically for testing micro LED high-brightness display screen field. UTILITY MODEL CONTENT

[0005] The utility model is to solve the technical problem of providing a divergence angle tester that can provide brightness, chrominance, contrast and spectral information and can be used to test micro LED high-brightness display screen field.

[0006] To solve the above technical problems, the technical solution of the utility model is a Micro LED micro display screen divergence angle testing device, which comprises a bearing base, a vertical rod is longitudinally slidably connected to the bearing base, a limiting device is connected to the vertical rod to limit the vertical rod, an XYZθ four-axis platform is installed on the bearing base for adjusting the horizontal position, height position and horizontal direction inner angle, a display screen fixing stand is installed above the XYZθ four-axis platform for detachably fixing the micro display screen, a plurality of groups of vertical insertion hole groups are formed in the vertical rod, a probe is inserted into one of the insertion hole groups, and the probe is connected to a spectrometer through an optical fiber.

[0007] A strong magnetic block is installed on the rear side of the display screen fixing stand, an installation slot corresponding to the position of the strong magnetic block is formed on the front side of the display screen fixing stand, and the micro display screen is placed in the installation slot and is adsorbed in the installation slot by the strong magnetic block.

[0008] ​

[0009] The bearing base is provided with a trapezoidal longitudinal sliding groove; and the vertical rod is longitudinally slidably connected in the longitudinal sliding groove.

[0010] The limiting device is a locking bolt; the locking bolt is threadedly connected with the base of the vertical rod, and the bottom end of the locking bolt penetrates through the base of the vertical rod and abuts against the bottom wall of the longitudinal sliding groove.

[0011] The plug-in hole set comprises a front plug-in hole and a rear plug-in hole coaxial with the front plug-in hole and located at the rear side of the front plug-in hole; the diameter of the front plug-in hole is larger than that of the rear plug-in hole; and the probe is inserted into the front plug-in hole and the rear plug-in hole of the plug-in hole set.

[0012] The two adjacent plug-in hole sets are communicated.

[0013] The technical effects achieved by the Micro LED micro display screen divergence angle testing device are as follows: the Micro LED micro display screen divergence angle testing device can be compatible with the visual angle detection of backlight display screens (such as liquid crystal, LCD) or screens with lower brightness (such as OLED); the Micro LED micro display screen divergence angle testing device can test the divergence angle of any position of an active light-emitting micro display screen, support the detection of ultrahigh brightness (screen brightness > 100000 nit), provide corresponding spectral data and color coordinate data, and has high integration and low cost, and is suitable for the divergence angle testing of active micro display screens in the development stage. BRIEF DESCRIPTION OF DRAWINGS

[0014] The Micro LED micro display screen divergence angle testing device will be further described in detail in combination with the drawings and specific embodiments:

[0015] Figure 1 is a structural schematic view of the Micro LED micro display screen divergence angle testing device;

[0016] Figure 2 is Figure 1 the enlarged view of A of

[0017] Figure 3 is Figure 1 another structural schematic view of

[0018] Figure 4 is Figure 3 the enlarged view of B of

[0019] Figure 5 is a schematic view of the vertical rod;

[0020] Figure 6 is Figure 5 the enlarged view of C of DETAILED DESCRIPTION

[0021] The Micro LED micro display screen divergence angle testing device will be further described in detail in combination with the drawings and specific embodiments:

[0022] Referring to Figures 1 to 6 .

[0023] A Micro LED micro display screen divergence angle testing device, including bearing base 1, bearing base 1 on longitudinal sliding connection has vertical rod 2, specifically, bearing base 1 is set up the longitudinal sliding slot 13 of trapezoidal, vertical rod 2 longitudinal sliding connection is in longitudinal sliding slot 13;Vertical rod 2 is connected with the limiting device of itself limit;Specifically, limiting device is locking bolt 14, locking bolt 14 is connected with the base of vertical rod 2, and the bottom end of locking bolt 14 passes through the base of vertical rod 2 and abuts on the bottom wall of longitudinal sliding slot 13;The vertical rod 2 of the utility model is slidably connected on longitudinal sliding slot 13, when moving to the required position, locking bolt 14 is tightened, the friction between the bottom end of locking bolt 14 and longitudinal sliding slot 13 makes vertical rod 2 unable to slide along longitudinal sliding slot 13, thereby limiting.

[0024] Bearing base 1 is installed with the XYZ four-axis platform 3 for adjusting horizontal position, height position and horizontal direction inner angle, the display screen fixed stand 4 for detachably fixing micro display screen 5 is installed above XYZ four-axis platform 3;Specifically, the strong magnetic block 11 is installed on the rear side of display screen fixed stand 4, the mounting groove 12 corresponding with the position of strong magnetic block 11 is set up on the front side of display screen fixed stand 4, and micro display screen 5 is placed in mounting groove 12 and is adsorbed in mounting groove 12 by strong magnetic block 11;The utility model XYZ four-axis platform 3 is fixed on bearing base 1 and is used as the base of display screen fixed stand 4, and the XY axis platform in XYZ four-axis platform 3 can be slightly adjusted in horizontal plane, the height position is slightly adjusted in Z axis platform, and the angle in horizontal direction is adjusted in θ platform.

[0025] A plurality of groups of vertical arrangement plug-in holes are set up on vertical rod 2, specifically, twenty groups of vertical arrangement plug-in holes can be set up on vertical rod 2;Among the twenty groups of plug-in holes, one group of plug-in holes is inserted with probe 6, and probe 6 is connected with spectrometer through optical fiber 7;Specifically, the plug-in hole group includes front plug-in hole 21 and rear plug-in hole 22 located on the rear side of front plug-in hole 21 and coaxial with front plug-in hole 21, the diameter of front plug-in hole 21 is greater than the diameter of rear plug-in hole 22, and probe 6 is inserted into front plug-in hole 21 and rear plug-in hole 22 of plug-in hole group;More specifically, the two adjacent plug-in hole groups are communicated.

[0026] The utility model discloses when testing, the probe 6 is fixed in the vertical rod 2 suitable height, and the locking bolt 14 on the vertical rod 2 is locked after adjusting the front and back position of vertical rod 2;The micro display screen 5 to be tested is fixed on the display screen fixed stand 4, and the XYZ platform knob is slightly adjusted in the center position of micro display screen 5, and the rotation of theta platform drives the rotation of micro display screen 5, and the side of theta platform has the mark scale, reads the spectrometer data connected with the optical fiber 7 every rotation angle, and the intensity curve under the different angle of micro display 5 is fitted, and the divergence angle of micro display screen 5 can be obtained, and the maximum test angle range is ± 90 °.

[0027] The utility model discloses the scheme that provides for micro LED micro display divergence angle test, and the visual angle detection of backlight display screen (such as liquid crystal, LCD) or lower luminance screen (such as OLED) can be compatible simultaneously;The application can test the divergence angle of any one position of active light emitting micro display screen, and can support the detection of ultrahigh brightness (screen brightness > 100000 nit), simultaneously provides corresponding spectral data and color coordinate data, and the integration level is high;Low cost is applicable to the active micro display divergence angle test of development stage.

Claims

1.A Micro LED micro display screen divergence angle testing device, characterized in that: The utility model provides a kind of micro display screen fixing device, including bearing base (1);The vertical rod (2) is connected with longitudinal sliding on the bearing base (1);Limiting device is connected with itself limiting on the vertical rod (2);XYZ four-axis platform (3) for adjusting horizontal position, height position and horizontal direction inner angle is installed on the bearing base (1);Display screen fixing stand (4) for detachable fixed micro display screen (5) is installed above the XYZ four-axis platform (3);Vertical arrangement is opened in the vertical rod (2) multiple groups of plug-in hole groups;In multiple groups of the plug-in hole groups, one group of plug-in hole group is inserted with probe (6);Probe (6) is connected spectrometer by optical fiber (7). 2.The Micro LED micro display screen divergence angle testing device according to claim 1, wherein: The display screen fixing stand (4) rear side is installed with strong magnetic block (11);The display screen fixing stand (4) front side is opened with the installation slot (12) corresponding with the position of strong magnetic block (11);Micro display screen (5) is placed in installation slot (12) and is adsorbed in installation slot (12) by strong magnetic block (11). 3.The Micro LED micro display screen divergence angle testing device according to claim 1, wherein: The bearing base (1) is opened with longitudinal sliding slot (13) of trapezoidal shape;The vertical rod (2) longitudinal sliding is connected in longitudinal sliding slot (13). 4.The Micro LED micro display screen divergence angle testing device according to claim 3, characterized in that: The limiting device is locking bolt (14);Locking bolt (14) and the base of vertical rod (2) are threadedly connected, and locking bolt (14) bottom end passes through the base of vertical rod (2) and abuts on the bottom wall of longitudinal sliding slot (13). 5.The Micro LED micro display screen divergence angle testing device according to claim 1, wherein: The plug-in hole group includes front plug-in hole (21) and rear plug-in hole (22) behind front plug-in hole (21) and with the same center of front plug-in hole (21);The diameter of front plug-in hole (21) is greater than the diameter of rear plug-in hole (22);Probe (6) is inserted in front plug-in hole (21) and rear plug-in hole (22) of plug-in hole group. 6.The Micro LED micro display screen divergence angle testing device according to claim 5, wherein: Adjacent two the plug-in hole groups are communicated.

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