Multifunctional display screen optical characteristic automatic measurement system

Abstract

The utility model discloses a multifunctional display screen optical characteristic automatic measurement system, which comprises a rack assembly, an instrument motion test shaft, a product fixing assembly and an ambient light contrast test device, and the instrument motion test shaft, the product fixing assembly and the ambient light contrast test device are arranged in the rack assembly. The X-axis movement, the Y-axis movement and the Z-axis movement of the optical instrument are realized through the instrument movement test axis, the optical instrument is ensured to be completely vertical to the light-emitting surface of a tested product, and the precision, the accuracy and the reliability of measurement are improved; according to the characteristics of a tested product, a ceramic suction cup or a 3D screen clamp is selected to position the tested product, and the fixing possibility of various types of products such as flexible screens and hard screens is met; the environment light contrast testing device is additionally arranged, the diffuse reflection environment light contrast testing requirement and the specular reflection contrast testing requirement can be met, so that one machine has multiple purposes, cost can be reduced, testing efficiency can be improved, and the environment light contrast testing device is suitable for industrial application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of display optical property testing, and particularly relates to a multifunctional automatic measuring system for display optical properties. Background Art

[0002] As display manufacturers put forward higher requirements for the testing of display optical properties under high and low temperature conditions, improving the stability and convenience of display optical property testing devices is the key to ensuring the accuracy of optical property test results.

[0003] At present, the functions of various optical property testing devices for displays are relatively single. To test various optical properties of a product, a variety of corresponding devices and instruments are required, which consumes a large amount of financial resources and seriously affects the test efficiency. Summary of the Utility Model

[0004] To solve the technical problems existing in the prior art, the purpose of the utility model is to provide a multifunctional automatic measuring system for display optical properties.

[0005] To achieve the above purpose and reach the above technical effects, the technical solution adopted by the utility model is as follows:

[0006] A multifunctional automatic measuring system for display optical properties includes a frame assembly, an instrument movement test axis, a product fixing assembly, and an ambient light contrast test device. The instrument movement test axis, the product fixing assembly, and the ambient light contrast test device are arranged in the frame assembly. The XYZ three-axis movement of the optical instrument is realized through the instrument movement test axis, and it is ensured that the optical instrument is completely perpendicular to the light-emitting surface of the product to be tested. The product to be tested is fixed through the product fixing assembly, and the requirements for diffuse reflection ambient light contrast testing and specular reflection contrast testing are realized through the ambient light contrast test device.

[0007] Furthermore, the frame assembly is spliced by a lower frame and an upper frame arranged above it. The instrument movement test axis, the product fixing assembly, and the ambient light contrast test device are arranged in the space formed by the splicing of the lower frame and the upper frame.

[0008] Furthermore, an industrial control computer is equipped on the lower frame, a monitoring display, a host display, and a button operation panel are equipped on the upper frame. The host display is respectively connected to the industrial control computer and the button operation panel, and the monitoring display is connected to a monitoring camera arranged in the frame assembly.

[0009] Furthermore, the instrument movement test axis includes an X movement axis, a Y movement axis, a Z movement axis, and an instrument fixing fine adjustment platform. The X movement axis is disposed on the Y movement axis, the Z movement axis is disposed on the X movement axis, an instrument fixing fine adjustment platform and an optical instrument are disposed on the Z movement axis, a photographing and positioning industrial camera is disposed on the optical instrument, the optical instrument can reciprocate along the Z movement axis, the Z movement axis can drive the optical instrument thereon to reciprocate along the X movement axis, and the X movement axis can drive the Z movement axis and the optical instrument thereon to reciprocate along the Y movement axis, so as to realize the XYZ three-axis movement of the optical instrument. The instrument fixing fine adjustment platform ensures that the optical instrument is completely perpendicular to the light-emitting surface of the product to be measured.

[0010] Furthermore, the product fixing assembly includes a field of view angle θ axis, an azimuth angle Φ axis, and a product fixing fixture. The product fixing fixture includes a ceramic suction cup, a 3D curved screen fixture, and a product thickness compensation adjustment assembly. The product to be measured is positioned by the ceramic suction cup and the 3D curved screen fixture, and the product thickness compensation adjustment assembly ensures that the light-emitting surfaces of products in different forms are adjusted to the axis of the field of view angle θ axis.

[0011] Furthermore, the ambient light contrast test device includes an ACR light source device for diffuse reflection ambient light contrast and a specular reflection light source for specular reflection contrast.

[0012] Furthermore, the ACR light source device includes an ACR light source integrating sphere, an ACR light source manual up-and-down adjustment axis, an ACR light source idle position limit block, and an ACR light source working position limit block. The ACR light source integrating sphere is connected to the ACR light source manual up-and-down adjustment axis. The ambient light illumination and color temperature are adjusted by the ACR light source integrating sphere. The ACR light source integrating sphere is adjusted downward by the ACR light source manual up-and-down adjustment axis to be close to the light-emitting surface of the product. The ACR light source manual up-and-down adjustment axis is connected to the rotating shaft seat through an L-shaped plate and fixed to the base through the rotating shaft seat. The rotation of the rotating shaft seat can drive the L-shaped plate and the ACR light source integrating sphere to move synchronously. The ACR light source idle position limit block and the ACR light source working position limit block are respectively disposed on both sides of the rotating shaft seat. The ACR light source working position limit block ensures that the ACR light source integrating sphere is directly above the product to be measured, and the ACR light source idle position limit block can fix the ACR light source integrating sphere.

[0013] Further, the specular reflection light source includes a halogen light source, a light guide fiber, an integrating sphere, a collimating mirror, and a specular reflection light source rotation axis θ1. The halogen light source is connected to the light guide fiber to provide a light source with the required brightness. The light source is transmitted to the integrating sphere through the light guide fiber. The light source undergoes multiple diffuse reflections in the integrating sphere and then irradiates the light-emitting surface of the product in the form of a linear light source through the collimating mirror. Different test angles with different requirements are adjusted through the specular reflection light source rotation axis θ1 in cooperation with the viewing angle θ axis of the product fixing assembly.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model discloses a multifunctional display optical characteristic automatic measurement system, which is equipped with an X movement axis, a Y movement axis, and a Z movement axis. The X movement axis, Y movement axis, and Z movement axis are carried by a precision ball screw module, featuring high precision and fast speed. By setting an instrument fixing fine-tuning platform, it is ensured that the optical instrument is completely perpendicular to the light-emitting surface of the product to be measured, improving the accuracy, accuracy, and reliability of the measurement. According to the characteristics of the product to be measured, a ceramic suction cup or a fixture for a 3D screen is selected to position the product to be measured, meeting the fixation possibilities of various flexible and rigid screen products. On the basis of a conventional omnidirectional viewing angle test system, an ambient light contrast test device is additionally equipped, which can realize the requirements of diffuse reflection ambient light contrast test and specular reflection contrast test, improving the practical value of the system. Thus, it realizes multi-functional use of one machine, which is beneficial to both cost reduction and test efficiency improvement, and is suitable for industrial popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the three-dimensional structure schematic diagram of the frame assembly of the present utility model;

[0018] Figure 3 is the three-dimensional structure schematic diagram of the present utility model when the upper frame is not installed;

[0019] Figure 4 is the three-dimensional structure schematic diagram of the instrument movement test axis of the present utility model;

[0020] Figures 5 - 7 are respectively the three-dimensional structure schematic diagrams of the product fixing assembly of the present utility model;

[0021] Figure 8 is the structure schematic diagram of the ACR light source device of the present utility model;

[0022] Figure 9 is the structure schematic diagram of the specular reflection light source of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be described in detail below so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model clearer and more definite.

[0024] A brief overview of one or more aspects is given below to provide a basic understanding of these aspects. This overview is not an exhaustive survey of all contemplated aspects, and is neither intended to identify key or decisive elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description to follow.

[0025] As Figures 1 - 9 shown, a multifunctional display optical property automatic measurement system includes a frame assembly, an instrument movement test axis, a product fixing assembly, and an ambient light contrast test device. The instrument movement test axis, the product fixing assembly, and the ambient light contrast test device are arranged within the frame assembly. The XYZ three-axis movement of the optical instrument 2-5 is realized through the instrument movement test axis, and it is ensured that the optical instrument 2-5 is completely perpendicular to the light-emitting surface of the product to be measured. The product to be measured is fixed through the product fixing assembly. The ambient light contrast test device includes an ACR light source device 4 for diffuse reflection ambient light contrast and a specular reflection light source 5 for specular reflection contrast. The diffuse reflection ambient light contrast test requirement and the specular reflection contrast test requirement are realized through the ambient light contrast test device.

[0026] As Figure 2 shown, the frame assembly is composed of a lower frame 1-1 and an upper frame 1-2 arranged above it. Such a splicing method allows the upper frame 1-2 to be installed after the components on the lower frame 1-1 are installed. Such a structure is more conducive to reducing the size of the handling unit, facilitating handling, and thus reducing the channel requirements at the use site. An industrial control computer 1-1-1 is equipped on the lower frame 1-1, and a monitoring display 1-2-1 is equipped on the upper frame 1-2. It is connected to a monitoring camera (not shown in the figure) arranged within the frame assembly and can monitor the operation of the mechanism inside the frame assembly and the optical property test process in real time. A host display 1-2-2 is also equipped on the upper frame 1-2, which is convenient for the operator to perform interface control on the device actions. The host display 1-2-2 is respectively connected to the industrial control computer 1-1-1 and a button operation panel 1-2-3. The button operation panel 1-2-3 is mainly used for the operator to quickly handle and respond to alarms and emergencies of the device. The inside of the lower frame 1-1 and the upper frame 1-2 is assembled and built using square tubes welded and sheet metal parts, and the overall structure is reliable and stable, providing a stable and reliable platform for the entire system.

[0027] As Figures 3 - 4As shown in the figure, the instrument motion test axis is arranged in the space formed by splicing the lower frame 1-1 and the upper frame 1-2 through the base 23. The instrument motion test axis includes an X motion axis 2-1, a Y motion axis 2-2, a Z motion axis 2-3 and an instrument fixed fine-tuning platform 2-4. The X motion axis 2-1, the Y motion axis 2-2 and the Z motion axis 2-3 are carried by existing precision ball screw modules. The X motion axis 2-1, the Y motion axis 2-2 and the Z motion axis 2-3 are combined into an XYZ three-axis motion platform, which has the characteristics of high precision and fast speed. The X motion axis 2-1 is arranged on the Y motion axis 2-2, the Z motion axis 2-3 is arranged on the X motion axis 2-1, an instrument fixed fine-tuning platform 2-4 and an optical instrument 2-5 are arranged on the Z motion axis 2-3, a photographing and positioning industrial camera 2-6 is arranged on the optical instrument 2-5. The optical instrument 2-5 can reciprocate along the Z motion axis 2-3, the Z motion axis 2-3 can drive the optical instrument 2-5 thereon to reciprocate along the X motion axis 2-1, and the X motion axis 2-1 can drive the Z motion axis 2-3 thereon and the optical instrument 2-5 thereon to reciprocate along the Y motion axis 2-2, so as to realize the XYZ three-axis motion of the optical instrument 2-5. The instrument fixed fine-tuning platform 2-4 has the function of adjusting the instrument verticality to ensure that the optical instrument 2-5 is completely perpendicular to the light-emitting surface of the product to be measured, and improve the precision, accuracy and reliability of the measurement.

[0028] As Figures 5 - 7As shown in the figure, the product fixing component includes a field of view angle θ axis 3-1, an azimuth angle Φ axis 3-2, and a product fixing fixture. Among them, the product fixing fixture includes a ceramic suction cup 3-3-1, a 3D curved screen fixture 3-3-2, and a product thickness compensation adjustment component 3-3-3. The tested product is positioned by the ceramic suction cup 3-3-1 and the 3D curved screen fixture 3-3-2. The ceramic suction cup 3-3-1 mainly fixes flexible products or flat hard screen products. The product thickness compensation adjustment component 3-3-3 includes a Φ axis azimuth angle platform 3-3-3-1, a motor 3-3-3-2 that drives the Φ axis azimuth angle platform 3-3-3-1 to rotate, and a θ axis swing platform 3-3-3-3. The motor 3-3-3-2 is connected to the θ axis swing platform 3-3-3-3 through a hollow rotary platform 3-3-3-4 and is arranged on the base 23 through the θ axis swing platform 3-3-3-3. The motor 3-3-3-2 drives the θ axis swing arm through the precision hollow rotary platform 3-3-3-4 to achieve a field of view angle adjustment of plus or minus 90° for the θ axis swing platform 3-3-3-3. The servo motor 3-3-3-5 is equipped with a precision worm and gear rotary platform 3-3-3-6 to drive the Φ axis azimuth angle platform 3-3-3-1 to rotate, achieving a 360° angle adjustment for the Φ axis azimuth angle. When the motor 3-3-3-2 rotates, it drives the θ axis swing platform 3-3-3-3 to rotate synchronously. Since the Φ axis azimuth angle platform 3-3-3-1 is arranged on the θ axis swing platform 3-3-3-3, it drives the Φ axis azimuth angle platform 3-3-3-1 to rotate synchronously. Also, since the field of view angle θ axis 3-1, the azimuth angle Φ axis 3-2, and the product fixing fixture are all arranged on the Φ axis azimuth angle platform 3-3-3-1, it drives the components thereon to rotate synchronously by using the rotation of the Φ axis azimuth angle platform 3-3-3-1. Through the product thickness compensation adjustment component 3-3-3, it can ensure that the light-emitting surfaces of products in different forms are adjusted to the axis of the field of view angle θ axis 3-1, so as to ensure that the tested light-emitting surface is always on the rotation axis under different field of view angle states, improving the test accuracy. According to the test requirements, after the product is fixed and positioned, the system will adjust the field of view angle and azimuth angle of the product through the field of view angle θ axis 3-1 and the azimuth angle Φ axis 3-2 respectively. The optical instrument 2-5 will complete all tests of the tested product at the full angle of view or the specified angle of view, and finally save the test data in the industrial control computer 1-1-1 in the form of a report.

[0029] An ion fan 6 is also arranged on the base 23 for removing static electricity from the tested product.

[0030] As Figure 8As shown in the figure, the ACR light source device 4 includes an ACR light source integrating sphere 4-1, an ACR light source manual vertical adjustment shaft 4-2, an ACR light source idle position limit block 4-3, and an ACR light source working position limit block 4-4. Among them, the ACR light source integrating sphere 4-1 is connected to the ACR light source manual vertical adjustment shaft 4-2. The ACR light source manual vertical adjustment shaft 4-2 is connected to a rotating shaft seat 4-6 through an L-shaped plate 4-5 and is fixed on the base 23 through the rotating shaft seat 4-6. The ACR light source idle position limit block 4-3 and the ACR light source working position limit block 4-4 are respectively arranged on both sides of the rotating shaft seat 4-6. The rotation of the rotating shaft seat 4-6 can drive the L-shaped plate 4-5 and the ACR light source integrating sphere 4-1 to move synchronously. The appropriate ambient illuminance and color temperature are adjusted through the light source and the calibrated color temperature module built in the ACR light source integrating sphere 4-1. Both the light source and the calibrated color temperature module can use existing commercially available products. The ACR light source integrating sphere 4-1 can be adjusted downward by the ACR light source manual vertical adjustment shaft 4-2 to be close to the light-emitting surface of the product. The ACR light source working position limit block 4-4 can ensure that the ACR light source integrating sphere 4-1 is directly above the product to be measured. When the ACR light source integrating sphere 4-1 is needed, the ACR light source integrating sphere 4-1 is directly above the product to be measured through the rotation of the rotating shaft seat 4-6 and the limiting effect of the ACR light source working position limit block 4-4. When the ACR light source integrating sphere 4-1 is not needed, the L-shaped plate 4-5 and the ACR light source integrating sphere 4-1 are moved away from the product to be measured through the rotation of the rotating shaft seat 4-6, and the ACR light source integrating sphere 4-1 is fixed by the ACR light source idle position limit block 4-3.

[0031] As Figure 9 shown in the figure, the specular reflection light source 5 includes a halogen light source 5-1, a light guide fiber 5-2, an integrating sphere 5-3, a collimating mirror 5-4, and a specular reflection light source rotation axis θ1 5-5. Among them, the halogen light source 5-1 is connected to the light guide fiber 5-2. The light source with the required brightness is provided by the halogen light source 5-1, and the light source is transmitted to the integrating sphere 5-3 through the light guide fiber 5-2. The light source is diffusely reflected multiple times in the integrating sphere 5-3 and then irradiated onto the light-emitting surface of the product in the form of a linear light source through the collimating mirror 5-4. Different required test angles are adjusted through the specular reflection light source rotation axis θ1 5-5 in cooperation with the field angle θ axis 3-1 of the product fixing component.

[0032] The working principle of the present utility model is as follows:

[0033] Select the ceramic suction cup 3-3-1 (for flexible products or flat hard screen products) or the fixture 3-3-2 for 3D screens according to the characteristics of the product to be tested to position the product to be tested, and adjust the light-emitting surface of the product to be tested to the axis of the field-of-view angle θ axis 3-1 through the product thickness compensation adjustment component 3-3-3 to complete the positioning and fixing action of the product. After that, conventional full-view automatic measurement can be carried out. According to the test requirements, the operator can select the items to be tested on the host monitor 1-2-2 through the mouse and keyboard, and click to run to automatically complete the test requirements of all selected test items and output the test results in the form of a report;

[0034] If there is a test requirement for the contrast of diffuse reflection ambient light, the field-of-view angle of the product to be tested can be adjusted to the angle corresponding to the light outlet of the ACR light source device 4, such as 8° or other selected angles. Then, rotate the ACR light source integrating sphere 4-1 from the ACR light source idle position limit block 4-3 to above the product to be tested. The ACR light source working position limit block 4-4 determines that the ACR light source integrating sphere 4-1 is directly above the product to be tested, and adjust the ACR light source integrating sphere 4-1 downward through the ACR light source manual up-down adjustment shaft 4-2 to be close to the product light-emitting surface. In this way, the hardware preparation work for the contrast of diffuse reflection ambient light is completed. The operator can select the corresponding test item on the host monitor 1-2-2 through the mouse and keyboard, and the ACR light source integrating sphere 4-1 can adjust the appropriate ambient light intensity and color temperature through the built-in light source and calibrated color temperature module. Finally, the optical instrument 2-5 completes the relevant test for the contrast of diffuse reflection ambient light;

[0035] Similar to the test for the contrast of diffuse reflection ambient light, when there is a test requirement for the contrast of specular reflection, rotate the ACR light source integrating sphere 4-1 to the ACR light source idle position and fix it with the ACR light source idle position limit block 4-3. At this time, the operator can completely select the corresponding test item on the host monitor 1-2-2 through the mouse and keyboard for automatic measurement. During the automatic measurement process, the halogen light source 5-1 adjusts and provides the light source with the required brightness, and the light source is transmitted to the integrating sphere 5-3 through the light guide fiber 5-2. After the light source is diffusely reflected multiple times in the integrating sphere 5-3, a more uniform light source is obtained. Finally, the light source is irradiated onto the product light-emitting surface in the form of a linear light source through the collimating mirror 5-4, and different test angles are adjusted through the specular reflection light source rotation axis θ1 5-5 in cooperation with the field-of-view angle θ axis 3-1. The optical instrument 2-5 completes the relevant test for the contrast of specular reflection ambient light;

[0036] In the above various test items, the optical instrument 2-5 provided on the Z moving axis 2-3 is controlled and adjusted in its working position by the X moving axis 2-1, the Y moving axis 2-2 and the Z moving axis 2-3 with the assistance of the photographing and positioning industrial camera 2-6 below it. Specifically, the optical instrument 2-5 can reciprocate along the Z moving axis 2-3, the Z moving axis 2-3 can drive the optical instrument 2-5 thereon to reciprocate along the X moving axis 2-1, and the X moving axis 2-1 can drive the Z moving axis 2-3 thereon and the optical instrument 2-5 thereon to reciprocate along the Y moving axis 2-2, so as to realize the XYZ three-axis movement of the optical instrument 2-5, achieve the precise positioning of the optical instrument for all test items, and complete reliable and accurate measurement.

[0037] The optical instrument 2-5, the X moving axis 2-1 and the Z moving axis 2-3 achieve movement by means of motor drive or PLC control movement, etc. The specific way to achieve movement completely adopts the existing technology and will not be elaborated here.

[0038] For the parts or structures not specifically described in the present utility model, the existing technology or existing products can be adopted and will not be elaborated here.

[0039] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A multifunctional display screen optical property automatic measurement system, characterized in that: The invention comprises a frame assembly, an instrument motion test axis, a product fixing assembly and an ambient light contrast test device, wherein the instrument motion test axis, the product fixing assembly and the ambient light contrast test device are arranged in the frame assembly, the XYZ three-axis motion of the optical instrument (2-5) is realized by the instrument motion test axis, and the optical instrument (2-5) is ensured to be completely perpendicular to the light-emitting surface of the product to be tested, the product fixing assembly is used to fix the product to be tested, and the ambient light contrast test requirements of diffuse reflection ambient light contrast and mirror reflection contrast are realized by the ambient light contrast test device.

2. The automatic measurement system for optical properties of a multifunctional display screen according to claim 1, characterized in that: The frame assembly is formed by splicing a lower frame (1-1) and an upper frame (1-2) arranged above the lower frame, and the instrument motion test axis, product fixing assembly and ambient light contrast test device are arranged in a space formed by splicing the lower frame (1-1) and the upper frame (1-2).

3. The automatic measurement system for optical properties of a multifunctional display screen according to claim 2, characterized in that: The lower frame (1-1) is equipped with an industrial computer (1-1-1), and the upper frame (1-2) is equipped with a monitoring display (1-2-1), a host display (1-2-2) and a button operation panel (1-2-3); the host display (1-2-2) is connected to the industrial computer (1-1-1) and the button operation panel (1-2-3) respectively, and the monitoring display (1-2-1) is connected to a monitoring camera arranged in the frame assembly.

4. The automatic measurement system for optical properties of a multifunctional display screen according to claim 1, characterized in that: The instrument motion test axis comprises an X motion axis (2-1), a Y motion axis (2-2), a Z motion axis (2-3) and an instrument fixed fine-tuning platform (2-4); the X motion axis (2-1) is arranged on the Y motion axis (2-2); the Z motion axis (2-3) is arranged on the X motion axis (2-1); the Z motion axis (2-3) is provided with an instrument fixed fine-tuning platform (2-4) and an optical instrument (2-5); the optical instrument (2-5) is provided with an industrial camera (2-6) for taking photos and positioning; The optical instrument (2-5) can reciprocate along a Z motion axis (2-3), the Z motion axis (2-3) can drive the optical instrument (2-5) thereon to reciprocate along an X motion axis (2-1), the X motion axis (2-1) can drive the Z motion axis (2-3) thereon and the optical instrument (2-5) thereon to reciprocate along a Y motion axis (2-2), thereby realizing XYZ three-axis motion of the optical instrument, and ensuring that the optical instrument (2-5) is completely perpendicular to the light-emitting surface of the product being tested through an instrument fixed fine-tuning platform (2-4).

5. The automatic measurement system for optical properties of a multifunctional display screen according to claim 1, characterized in that: The product fixing component comprises a viewing angle θ axis (3-1), an azimuth angle Φ axis (3-2) and a product fixing fixture, and the product fixing fixture comprises a ceramic suction cup (3-3-1), a 3D curved screen fixture (3-3-2) and a product thickness compensation adjustment component (3-3-3). The product to be tested is positioned by means of the ceramic suction cup (3-3-1) and the 3D curved screen fixture (3-3-2), and the product thickness compensation adjustment component (3-3-3) is used to ensure that the light-emitting surface of products of different shapes is adjusted to the axis of the viewing angle θ axis (3-1).

6. The automatic measurement system for optical properties of a multifunctional display screen according to claim 1, characterized in that: The ambient light contrast testing device comprises an ACR light source device (4) for diffuse reflection ambient light contrast and a specular reflection light source (5) for specular reflection contrast.

7. The automatic measurement system for optical properties of a multifunctional display screen according to claim 6, characterized in that: The ACR light source device (4) comprises an ACR light source integrating sphere (4-1), an ACR light source manual up and down adjustment shaft (4-2), an ACR light source idle position limit block (4-3) and an ACR light source working position limit block (4-4); the ACR light source integrating sphere (4-1) is connected to the ACR light source manual up and down adjustment shaft (4-2); the ambient light illumination and color temperature are adjusted by the ACR light source integrating sphere (4-1); the ACR light source manual up and down adjustment shaft (4-2) is used to adjust the ACR light source integrating sphere (4-1) downward to be close to the light-emitting surface of the product; the ACR light source manual up and down adjustment shaft (4-2) is connected to the ACR light source by an L-shaped plate. (4-5) is connected to the rotating shaft seat (4-6) and is fixed on the base (23) through the rotating shaft seat (4-6); the rotation of the rotating shaft seat (4-6) can drive the L-shaped plate (4-5) and the ACR light source integrating sphere (4-1) to move synchronously; the ACR light source idle position limit block (4-3) and the ACR light source working position limit block (4-4) are respectively arranged on both sides of the rotating shaft seat; the ACR light source working position limit block (4-4) can ensure that the ACR light source integrating sphere (4-1) is located directly above the product to be tested; and the ACR light source idle position limit block (4-3) can fix the ACR light source integrating sphere (4-1).

8. The automatic measurement system for optical properties of a multifunctional display screen according to claim 6, characterized in that: The mirror reflection light source (5) comprises a halogen lamp light source (5-1), a light-guiding optical fiber (5-2), an integrating sphere (5-3), a collimator (5-4) and a mirror reflection light source rotation axis θ1 (5-5); the halogen lamp light source (5-1) is connected to the light-guiding optical fiber (5-2); a light source of required brightness is provided by the halogen lamp light source (5-1); the light source is transmitted to the integrating sphere (5-3) by the light-guiding optical fiber (5-2); the light source is diffusely reflected multiple times in the integrating sphere (5-3) and then irradiated onto the light-emitting surface of the product in the form of a linear light source by the collimator (5-4); and the test angles required are adjusted by cooperating with the field angle θ axis (3-1) of the product fixing component by the mirror reflection light source rotation axis θ1 (5-5).

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