Optical data detection device, display and detection method

Abstract

The invention discloses an optical data detection device, a display and a detection method.The device comprises a motor, a gear set, a lifter, a test arm, a magnetic part, a Hall sensor and an optical sensor, the motor is in transmission connection with one end of a lifting rod of the lifter through the gear set, and the other end of the lifting rod of the lifter is connected with the test arm; the Hall sensor and the optical sensor are arranged on the testing arm, the Hall sensor and the magnetic part are oppositely arranged in the first direction and sense the magnetic field intensity of the magnetic part, the optical sensor is used for collecting optical data of the display screen, and the optical sensor and the Hall sensor conduct lifting motion in the first direction under the action of the lifter along with the testing arm; and under the action of the motor, the rotating motion is performed. The motion action of the test arm is simplified, the structural complexity is reduced, and meanwhile the problems that the position of the test arm is wrong and the test arm cannot automatically return to the initial position are solved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to an optical data detection device, a display and a detection method. Background Art

[0002] With the progress of society and the development of science and technology, people have higher and higher requirements on the display effects of optical display devices, such as medical operation displays, display screens in hospital reading centers, industrial control displays, etc. For the display brightness value of the display, the change of the display screen color (color temperature) needs to be controlled within a certain range; so that the display image data of the display can maintain a consistent display effect (consistent brightness and color temperature) when viewed at different times.

[0003] The display brightness and color temperature of the monitor will change, that is, decay, as the monitor is used for a longer time. To meet such display requirements, technicians generally add a fixed monitor detection device when designing the monitor; or attach the monitor detection device as an accessory to the packaging box of the monitor, and install it on the monitor for detection when testing is needed. The fixed display detection device will block a part of the visible area of ​​the monitor, affecting the viewing of the image. The accessory display detection device needs to be reinstalled each time the screen is tested, which is inconvenient to operate, and the difference in the location of the detection device each time will also affect the test results.

[0004] In response to the defects of the above-mentioned prior art, a Chinese patent with patent publication number CN119124573A discloses an optical data detection device, a display and a detection method, which adopts a servo motor + thread sleeve screw rod structure and an "Λ"-shaped guide groove to realize the lifting and rotating movements of the test arm. The structure is highly complex and difficult to produce and process. In addition, due to the complex structure, it is easy to make mistakes. When a fault occurs, the test arm cannot return to the origin autonomously. Summary of the invention

[0005] The object of the present invention is to overcome the deficiencies of the prior art and to provide an optical data detection device, a display and a detection method.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] In the first aspect, the present invention provides an optical data detection device, including a motor, a gear set, a lifter, a test arm, a magnetic part, a Hall sensor and a light sensor, wherein the motor is connected to one end of a lifting rod of the lifter through the gear set, and the other end of the lifting rod of the lifter is connected to the test arm, the Hall sensor and the light sensor are arranged on the test arm, the Hall sensor and the magnetic part are arranged relative to each other along a first direction, and sense the strength of the magnetic field of the magnetic part, the light sensor is used to collect optical data of a display screen, and the light sensor and the Hall sensor follow the test arm to perform lifting and lowering motion along the first direction under the action of the lifter, and perform rotational motion under the action of the motor.

[0008] Furthermore, the gear set includes a driving gear and a driven gear, the axial directions of the driving gear and the driven gear are the same as the first direction, the driving gear is connected to the output shaft of the motor, the driven gear is connected to one end of the lifting rod of the lifter, and the driving gear and the driven gear are meshed and connected.

[0009] Furthermore, a return spring is sleeved on the lifting rod of the lifter, one end of the return spring abuts against the housing of the lifter, and the other end of the return spring abuts against the driven gear.

[0010] Furthermore, a shading member is provided on the test arm, and the shading member is arranged around the light sensor.

[0011] Furthermore, it also includes a control circuit board, the control circuit board is provided with a power line and a data line, and the motor, the lifter, the Hall sensor and the light sensor are electrically connected to the control circuit board.

[0012] Furthermore, it also includes a circuit board bracket, the control circuit board is installed on the circuit board bracket, and the housing of the lifter is connected to the circuit board bracket.

[0013] Furthermore, it also includes a mounting bracket, which is connected to the circuit board bracket, and the magnetic component is arranged on the mounting bracket.

[0014] In the second aspect, the present invention also provides a display, comprising a display body and the above-mentioned optical data detection device, wherein a storage groove is provided on the front side of the display body outside the display area, and when not in operation, the test arm is stored in the storage groove, and when in operation, the test arm moves from the storage groove to the display area of ​​the display body.

[0015] Furthermore, the display body includes a front frame, a display screen and a rear shell, the display screen is arranged between the front frame and the rear shell, and the storage groove is provided near the bottom of the front frame.

[0016] In a third aspect, the present invention further provides an optical detection method of an optical data detection device, comprising:

[0017] When the display needs to be optically inspected, a rising command is sent to the lifter;

[0018] The lifter drives the test arm to rise according to the received rising command, and at the same time receives the relative position change information with the magnetic part detected by the Hall sensor;

[0019] Sending a start rotation instruction to the motor according to the relative position change information;

[0020] The motor drives the test arm to rotate to a predetermined angle according to the rotation instruction so that the test arm faces the display.

[0021] When the test arm rotates to a predetermined angle, a descending command is sent to the lifter;

[0022] The lifter drives the test arm to descend to a predetermined height according to the descending instruction, so that the test arm reaches the detection position;

[0023] After reaching the detection position, the optical sensor performs optical detection on the display and records the detection results;

[0024] When the detection is completed, a reset command is sent to the lifter and motor;

[0025] The lifter and the motor drive the test arm to reset according to the reset instruction.

[0026] Compared with the prior art, the present invention has the following beneficial effects: an optical data detection device, comprising a motor, a gear set, a lifter, a test arm, a magnetic part, a Hall sensor and a light sensor, wherein the motor is connected to one end of a lifting rod of the lifter through a gear set transmission, and the other end of the lifting rod of the lifter is connected to the test arm, the Hall sensor and the light sensor are arranged on the test arm, the Hall sensor and the magnetic part are arranged relative to each other along a first direction, and sense the strength of the magnetic field of the magnetic part, the light sensor is used to collect optical data of the display screen, and the light sensor and the Hall sensor follow the test arm to perform lifting and lowering motion along the first direction under the action of the lifter, and perform rotational motion under the action of the motor. The mutual cooperation of the motor, the gear set and the lifter of the present invention realizes the lifting and rotating motion of the test arm, simplifies the motion of the test arm, and reduces the complexity of the structure. At the same time, the lifting and lowering of the test arm and whether it returns to the initial position can be determined by using the set Hall sensor, thereby solving the problem of the position error of the test arm and the inability of the test arm to return to the initial position autonomously.

[0027] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0029] Figure 1 A schematic diagram of the structure of an optical data detection device provided by a specific embodiment of the present invention;

[0030] Figure 2 A schematic structural diagram of an optical data detection device from another perspective provided in a specific embodiment of the present invention

[0031] Figure 3 A cross-sectional view of an optical data detection device provided by a specific embodiment of the present invention;

[0032] Figure 4 A schematic diagram of the appearance of a display provided by a specific embodiment of the present invention (the optical data detection device is in a non-working state);

[0033] Figure 5 A schematic diagram of the appearance of a display provided by a specific embodiment of the present invention (the optical data detection device is in working state);

[0034] Figure 6 A schematic diagram of a test arm in a starting position provided by a specific embodiment of the present invention Figure 1 ;

[0035] Figure 7 A schematic diagram of a test arm in a starting position provided by a specific embodiment of the present invention Figure 2 ;

[0036] Figure 8 A schematic diagram of a test arm in a raised position provided in a specific embodiment of the present invention Figure 1 ;

[0037] Fig. 9 A schematic diagram of a test arm in a raised position provided in a specific embodiment of the present invention Figure 2 ;

[0038] Fig.10 Schematic diagram of a test arm in a rotation position provided by a specific embodiment of the present invention Figure 1;

[0039] Fig.11 Schematic diagram of a test arm in a rotation position provided by a specific embodiment of the present invention Figure 2 ;

[0040] Fig.12 A schematic diagram of a test arm in a detection position provided by a specific embodiment of the present invention Figure 1 ;

[0041] Fig.13 A schematic diagram of a test arm in a detection position provided by a specific embodiment of the present invention Figure 2 ;

[0042] Fig.14 A schematic diagram of the installation of an optical data detection device and a display body provided in a specific embodiment of the present invention.

[0043] Reference numerals

[0044] 1. Optical data detection device; 11. Motor; 12. Gear set; 121. Driving gear; 122. Driven gear; 13. Lifter; 131. Lifting rod of lifter; 132. Housing of lifter; 14. Test arm; 141. Hall sensor; 142. Light sensor; 143. Shading member; 15. Magnetic member; 16. Control circuit board; 161. Power cord; 162. Data cable; 17. Circuit board bracket; 18. Mounting bracket; 19. Reset spring; 2. Display body; 21. Display screen; 211. Display area; 22. Storage slot. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0051] An embodiment of the present invention provides an optical data detection device 1, which is used for optical data detection of some special display devices such as displays and advertising machines.

[0052] like Figures 1 to 3As shown, an optical data detection device 1 includes a motor 11, a gear set 12, a lifter 13, a test arm 14, a magnetic member 15, a Hall sensor 141 and a light sensor 142. The motor 11 is connected to one end of a lifting rod 131 of the lifter through the gear set 12, and the other end of the lifting rod 131 of the lifter is connected to the test arm 14. The Hall sensor 141 and the light sensor 142 are arranged on the test arm 14. The Hall sensor 141 and the magnetic member 15 are arranged relative to each other along a first direction, and sense the strength of the magnetic field of the magnetic member 15. The first direction refers to a direction perpendicular to the display (the same below). The light sensor 142 is used to collect optical data of the display screen 21. The light sensor 142 and the Hall sensor 141 follow the test arm 14 to perform lifting and lowering motion along the first direction under the action of the lifter 13, and to perform rotational motion under the action of the motor 11.

[0053] An optical sensor is a sensor that obtains corresponding information by detecting (collecting), converting or transforming light signals. It is mainly composed of a detector, a driving component and an output component. It detects light signals, converts them into electrical signals, and then outputs meaningful signals to meet the needs of users. For example: it is used to detect the luminous intensity of a certain luminous surface, the color (color temperature) of light, etc. The Hall sensor 141 can be a high-sensitivity model, and the magnetic part 15 can be a permanent magnet with a stable magnetic field strength. When the test arm 14 is raised or lowered or rotated, the Hall sensor 141 can keenly capture changes in the strength of the magnetic field. It should be noted that both the optical sensor and the Hall sensor 141 are standard parts that can be purchased on the market, so they are not described in detail.

[0054] The motor 11 can be a servo motor or a stepper motor. The lifter 13 can be an electromagnetic lifter 13. The principle of the lifter 13 is based on the synergistic effect of electromagnetic force and mechanical structure. When the electromagnetic lifter 13 is powered on, the internal electromagnetic coil generates a strong magnetic field, driving the lifter's lift rod 131 to overcome gravity and friction and move upward, driving the test arm 14 to rise. The other end of the lifter's lift rod 131 is connected to the test arm 14, and a special card slot and threaded hole are designed. After the test arm 14 is inserted into the card slot through an adaptive connector, it is tightened with the test arm 14 fixing screw to ensure that the two are firmly connected and will not loosen or move during the movement. Deviation.

[0055] The lifting and rotating actions of the test arm 14 are realized through the mutual cooperation of the motor 11, the gear set 12 and the lifter 13, which simplifies the movement of the test arm 14 and reduces the complexity of the structure. At the same time, the lifting and lowering of the test arm 14 and whether it returns to the initial position can be determined by using the set Hall sensor 141, thereby solving the problem of incorrect position of the test arm 14 and the inability of the test arm 14 to return to the initial position autonomously.

[0056] like Figure 1As shown, the gear set 12 includes a driving gear 121 and a driven gear 122. The axial directions of the driving gear 121 and the driven gear 122 are the same as the first direction. The driving gear 121 is connected to the output shaft of the motor 11, and the driven gear 122 is connected to one end of the lifting rod 131 of the lifter. The driving gear 121 and the driven gear 122 are meshed and connected.

[0057] like Figure 3 As shown, the driving gear 121 is tightly connected to the output shaft of the motor 11. Specifically, a high-strength flat key connection method is adopted. A keyway is precisely machined at the corresponding position of the output shaft of the motor 11, and the flat key is embedded in it. Half of it is located in the keyway of the output shaft, and the other half is adaptively embedded in the hub keyway of the driving gear 121, ensuring that the two can achieve rigid synchronous rotation in the circumferential direction, effectively preventing any possible relative sliding, and ensuring efficient and lossless transmission of power from the motor 11 to the gear set 12. The driven gear 122 and one end of the lifting rod 131 of the lifter are connected by a set screw. Threaded holes are machined in the center hole of the driven gear 122 and the corresponding ends of the lifting rod 131 of the lifter. By screwing in the set screw, the driven gear 122 is tightly fixed on the lifting rod.

[0058] During operation, the motor 11 drives the driven gear 122 to rotate through the driving gear 121, thereby causing the lifting rod to rotate. The rotation of the lifting rod causes the test arm 14 connected thereto to rotate.

[0059] It should be noted that although the driving gear 121 and the driven gear 122 are meshingly connected, since the axial directions of the driving gear 121 and the driven gear 122 are the same as the first direction, the driven gear 122 can move in the first direction relative to the driving gear 121, thereby avoiding interference with the lifting movement of the lifting rod 131 of the lifter, that is, when the lifting rod 131 of the lifter performs a lifting movement along the first direction, the driven gear 122 also performs a lifting movement along the first direction synchronously.

[0060] like Figure 1 and Figure 3 As shown, a return spring 19 is sleeved on the lifting rod 131 of the lifter, one end of the return spring 19 abuts against the housing 132 of the lifter, and the other end of the return spring 19 abuts against the driven gear 122.

[0061] When the lifter 13 is working, the lifting rod 131 of the lifter is extended, and the reset spring 19 is compressed under the action of external force. When the test arm 14 rotates to the test angle, the test arm 14 needs to be lowered to the height of the detection position. At this time, the lifter 13 can be powered off. At this time, the reset spring 19 automatically releases the compression energy due to its elastic characteristics, and automatically pushes the lifting rod 131 of the lifter down to the height of the detection position.

[0062] like Figure 1 As shown, a shading member 143 is further provided on the test arm 14 , and the shading member 143 is arranged around the light sensor 142 .

[0063] The light shielding member 143 is made of black rubber material with good light absorption performance. This material can not only absorb light efficiently, but also has good flexibility, and is easy to process into various complex shapes to adapt to the structure of the test arm 14. The light shielding member 143 is arranged tightly around the light sensor 142. The specific installation method is as follows: a circle of annular grooves are pre-designed at the position corresponding to the light sensor 142 on the test arm 14. The depth and width of the grooves are precisely customized according to the size of the light shielding member 143. The light shielding member 143 is embedded in the groove by interference fit to ensure that it will not be displaced or fall off during the operation of the device.

[0064] The shading piece 143 effectively blocks the interference of ambient light on the light sensor 142. In the daily inspection scene of the outdoor advertising machine, under complex ambient light conditions such as direct sunlight and reflected light from surrounding buildings, if there is no shading piece 143, these stray lights will flood into the sensing area of ​​the light sensor 142 in large quantities, resulting in serious distortion of the collected data such as the brightness and color temperature of the display screen 21, and unable to truly reflect the actual optical performance of the display screen 21. The shading piece 143 is like a "light shield" that keeps ambient light out, ensuring that the data obtained by the light sensor 142 comes only from the light emitted by the display screen 21 itself, greatly improving the credibility and reliability of the detection results.

[0065] In one embodiment, the optical data detection device 1 further includes a control circuit board 16, the control circuit board 16 is provided with a power line 161 and a data line 162, and the motor 11, the lifter 13, the Hall sensor 141 and the light sensor 142 are electrically connected to the control circuit board 16. The light sensor 142 is connected to the control circuit board 16 through a flexible data line 162, and the data measured by the light sensor 142 is transmitted to the control circuit board through the flexible data line 162, and the result is transmitted to the data collection device through the data line 162, and the power line 161 is used to power the device.

[0066] In one embodiment, the optical data detection device 1 further includes a circuit board bracket 17 , the control circuit board 16 is mounted on the circuit board bracket 17 , and the housing 132 of the lifter is connected to the circuit board bracket 17 .

[0067] The circuit board bracket 17 serves as a support and mounting structure for the control circuit board 16, providing mounting and supporting conditions for the control circuit board 16 so as to facilitate installation with the display. The circuit board bracket 17 also provides support conditions for the housing 132 of the lifter, ensuring that the lifting member of the lifter 13 can normally perform lifting and lowering movements relative to the housing 132 of the lifter.

[0068] In one embodiment, the optical data detection device 1 further includes a mounting bracket 18, the mounting bracket 18 is connected to the circuit board bracket 17, and the magnetic member 15 is disposed on the mounting bracket 18. The mounting bracket 18 is provided to facilitate the installation of the magnetic member 15, so that the magnetic member 15 can form an effective alignment relationship with the Hall sensor 141, so that when the Hall sensor 141 detects a change in the distance from the magnetic member 15, it is convenient to determine the location of the test arm 14.

[0069] like Figure 1-Figure 14 As shown, an embodiment of the present invention further provides a display, including a display body 2 and the above-mentioned optical data detection device 1, the front of the display body 2 is provided with a storage slot 22 outside the display area 211, when not working, the test arm 14 is stored in the storage slot 22, when working, the test arm 14 moves from the storage slot 22 to the display area 211 of the display body 2. Figure 4 and Figure 5 As shown, Figure 4 In the embodiment, the optical data detection device 1 is in a non-operating state, and the test arm 14 is stored in the storage slot 22. Figure 5 In the embodiment, the optical data detection device 1 is in working state, and the test arm 14 is facing the display area 211 of the display body 2 .

[0070] In one embodiment, the display body 2 includes a front frame, a display screen 21 and a rear shell. The display screen 21 is disposed between the front frame and the rear shell. A storage slot 22 is disposed near the bottom of the front frame.

[0071] The storage slot 22 is arranged near the bottom of the front frame, which not only facilitates the test arm 14 to switch between the working state and the non-working state at will, but also does not affect the normal display of the display area 211 of the display screen 21 .

[0072] Figure 6-Figure 13 The movement process of the test arm 14 from the non-working state to the working state is shown in FIG. Figure 6 , Figure 7 In this case, the test arm 14 is in the initial position, the test arm 14 is not raised, nor rotated, and the test arm 14 is still in the storage slot 22. Figure 8 , Fig. 9 In the embodiment, the test arm 14 is lifted upward by the lifting rod 131 of the lifter. At this time, the test arm 14 is out of the limit of the storage slot 22. Fig.10 , Fig.11 In the test arm 14, a ninety-degree rotation is performed to reach the angle of the detection azimuth. Fig.12 , Fig.13In the process, the test arm 14 is lowered to the height of the detection position while maintaining the angle at the detection position. In this state, the optical sensor on the test arm 14 can perform normal optical detection on the display area of ​​the display screen 21. When the detection task is completed, the above action is reversed to enable the test arm 14 to return to the initial position, that is, return to the storage slot 22.

[0073] The embodiment of the present invention further provides an optical detection method of an optical data detection device, which includes the following steps: S10-S90.

[0074] S10 , when the display needs to be optically inspected, a rising instruction is sent to the lifter 13 .

[0075] When the display needs to be optically inspected, the control circuit board 16 sends a lifting command through a preset program to drive the lifter 13 to move the test arm 14 upward from the initial position. The lifting command can be sent by an external user through a computer terminal or triggered by a predetermined automatic inspection program. The command signal is transmitted to the drive module of the lifter 13 through the data line 162 to start the lifting function of the lifter 13.

[0076] S20 , the lifter 13 drives the test arm 14 to rise according to the received rising instruction, and at the same time receives the relative position change information with the magnetic component 15 detected by the Hall sensor 141 .

[0077] After receiving the lifting command, the lifter 13 drives the lifting rod inside it to drive the test arm 14 to move upward. A Hall sensor 141 is installed on the test arm 14. The Hall sensor 141 detects the movement state of the test arm 14 in real time and senses the relative position change information between the test arm 14 and the magnetic part 15. This information is transmitted to the control circuit board 16 through the data line 162.

[0078] S30, sending a start rotation instruction to the motor 11 according to the relative position change information.

[0079] When the test arm 14 rises to the target height, the control circuit board 16 sends a start rotation instruction to the motor 11 according to the information fed back by the Hall sensor 141 .

[0080] S40 , the motor 11 drives the test arm 14 to rotate to a predetermined angle according to the rotation instruction, so that the test arm 14 faces the display.

[0081] After receiving the command, the motor 11 drives the gear set 12 to drive the test arm 14 to rotate, so that the test arm 14 is gradually adjusted to a predetermined detection angle.

[0082] S50 , when the test arm 14 rotates to a predetermined angle, a descending instruction is sent to the lifter 13 .

[0083] The predetermined rotation angle is ninety degrees. When the test arm 14 completes the rotation and stays at the predetermined angle, the control circuit board 16 sends a descending command to the lifter 13. After receiving the descending command, the lifter 13 drives the lifter rod 131 to drive the test arm 14 to move downward.

[0084] S60 , the lifter 13 drives the test arm 14 to descend to a predetermined height according to the descending instruction, so that the test arm 14 reaches the detection position.

[0085] The predetermined height is the height of the detection position. The lifter 13 drives the test arm 14 to descend to the predetermined height so that the optical sensor 142 is located at a suitable detection distance from the display surface. The Hall sensor 141 monitors the descending process of the test arm 14 in real time to ensure that the test arm 14 can accurately reach the predetermined position.

[0086] S70. After reaching the detection position, the optical sensor 142 performs optical detection on the display and records the detection result.

[0087] The optical sensor 142 starts working to detect the optical performance parameters (such as brightness, color temperature, color consistency, etc.) of the display, and transmits the detection results to the data storage module in real time for recording.

[0088] S80 , sending a reset command to the lifter 13 and the motor 11 after the detection is completed.

[0089] S90 , the lifter 13 and the motor 11 drive the test arm 14 to reset according to the reset instruction.

[0090] For steps S80-S90, when the detection is completed, the control circuit board 16 sends a reset command to the lifter 13 and the motor 11, the lifter 13 drives the test arm 14 to rise and fall to the initial position, and the motor 11 drives the test arm 14 to rotate back to the initial angle, the optical sensor 142 stops collecting data, and the device returns to the standby state.

[0091] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An optical data detection device, characterized in that: It includes a motor, a gear set, a lifter, a test arm, a magnetic part, a Hall sensor and a light sensor. The motor is connected to one end of the lifting rod of the lifter through the gear set, and the other end of the lifting rod of the lifter is connected to the test arm. The Hall sensor and the light sensor are arranged on the test arm. The Hall sensor and the magnetic part are arranged relative to each other along a first direction, and sense the strength of the magnetic field of the magnetic part. The light sensor is used to collect optical data of the display screen. The light sensor and the Hall sensor follow the test arm to perform lifting and lowering motion along the first direction under the action of the lifter, and perform rotational motion under the action of the motor.

2. An optical data detection device according to claim 1, characterized in that: The gear set includes a driving gear and a driven gear, the axial directions of the driving gear and the driven gear are the same as the first direction, the driving gear is connected to the output shaft of the motor, the driven gear is connected to one end of the lifting rod of the lifter, and the driving gear and the driven gear are meshed and connected.

3. An optical data detection device according to claim 2, characterized in that: A return spring is sleeved on the lifting rod of the lifter, one end of the return spring abuts against the housing of the lifter, and the other end of the return spring abuts against the driven gear.

4. The optical data detection device according to claim 1, characterized in that: The test arm is also provided with a shading member, and the shading member is arranged around the light sensor.

5. An optical data detection device according to any one of claims 1 to 4, characterized in that: It also includes a control circuit board, which is provided with a power line and a data line. The motor, the lifter, the Hall sensor and the light sensor are electrically connected to the control circuit board.

6. The optical data detection device according to claim 5, characterized in that: It also includes a circuit board bracket, the control circuit board is installed on the circuit board bracket, and the housing of the lifter is connected to the circuit board bracket.

7. The optical data detection device according to claim 6, characterized in that: It also includes a mounting bracket, which is connected to the circuit board bracket, and the magnetic member is arranged on the mounting bracket.

8. A display, characterized in that: It comprises a display body and the optical data detection device as described in any one of claims 1 to 7, wherein a storage groove is provided on the front side of the display body outside the display area, and when not in operation, the test arm is stored in the storage groove, and when in operation, the test arm moves from the storage groove to the display area of ​​the display body.

9. A display according to claim 8, characterized in that: The display body comprises a front frame, a display screen and a rear shell. The display screen is arranged between the front frame and the rear shell. The storage groove is arranged near the bottom of the front frame.

10. An optical detection method of an optical data detection device, characterized in that: include: When the display needs to be optically inspected, a rising command is sent to the lifter; The lifter drives the test arm to rise according to the received rising command, and at the same time receives the relative position change information with the magnetic part detected by the Hall sensor; Sending a start rotation instruction to the motor according to the relative position change information; The motor drives the test arm to rotate to a predetermined angle according to the rotation instruction so that the test arm faces the display. When the test arm rotates to a predetermined angle, a descending command is sent to the lifter; The lifter drives the test arm to descend to a predetermined height according to the descending instruction, so that the test arm reaches the detection position; After reaching the detection position, the optical sensor performs optical detection on the display and records the detection results; When the detection is completed, a reset command is sent to the lifter and motor; The lifter and the motor drive the test arm to reset according to the reset instruction.

Images