WO2020186446A1

WO2020186446A1 - Display unit calibration system and method

Info

Publication number: WO2020186446A1
Application number: PCT/CN2019/078653
Authority: WO
Inventors: 宗靖国; 刘宝华; 章泽
Original assignee: 西安诺瓦电子科技有限公司
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-09-24
Also published as: CN112368559A

Abstract

A display unit calibration system (10) and method. The display unit calibration system (10) comprises an apparatus room (11), a calibration control apparatus (13), a turntable (15), a darkroom (17), and an image acquisition apparatus (19). The apparatus room (11) has a feed position (111), an image acquisition position (113), and a postprocessing position (115, 117). The turntable (15) is installed in the apparatus room (11), and is electrically connected to the calibration control apparatus (13). A position-limiting fixture (151) and a signal supply port (153) are provided on the turntable (15). The position-limiting fixture (151) is used to hold a display unit to be calibrated (20) at the feed position (111). The signal supply port (153) is used to electrically connect the calibration control apparatus (13) to the display unit to be calibrated(20). The darkroom (17) communicates with the apparatus room (11). The image acquisition apparatus (19) is installed in the darkroom (17), and is electrically connected to the calibration control apparatus (13). The image acquisition apparatus (19) is opposite the image acquisition position (113). The turntable (15) is controlled by the calibration control apparatus (13) to drive the display unit (20) held by the position-limiting fixture (151), such that the display unit (20) sequentially rotates to the image acquisition position (113) and the postprocessing position (115, 117), so as to achieve image acquisition and brightness or brightness/chrominance calibration.

Description

Display unit correction system and correction method

Technical field

This application relates to the technical field of display product manufacturing, and in particular to a display unit calibration system and a display unit calibration method.

Background technique

After decades of development, LED display screens have become more and more widely used. LED display manufacturers also have a large number of production orders. While the number of orders continues to increase, actively improving production efficiency has become one of the important goals of LED display manufacturers.

Production line calibration is the last indispensable and important process for LED display units such as LED display boxes before they leave the factory. Its efficiency issues directly affect the efficiency of product shipments. The prior art solution needs to calibrate the LED display box in a darkroom environment. Each time the calibration needs to manually move the LED display box into the darkroom, install it on the shelf, manually execute the calibration software, and manually remove the LED display box after the calibration is completed. Body and sent out of the dark room.

It is difficult to perform manual operation in a dark environment, so you need to keep the lights off/off. The operator needs to work alternately in a dark environment and a lighting environment, which is less comfortable and depressing. It is difficult for ordinary people to work long hours in this environment. In addition, the darkroom environment will have a certain impact on the LED display box data collected by the camera because of the computer and other light sources, and ultimately affect the LED display box calibration effect. It can be seen that the existing production line correction scheme has a high degree of manual participation and an uncomfortable working environment, resulting in low production efficiency.

Summary of the invention

The embodiment of the present application provides a display unit calibration system and a display unit calibration method to achieve the technical effect of improving production efficiency.

On the one hand, a display unit calibration system proposed by an embodiment of the present application includes: an equipment room with a loading level, an image acquisition position, and a post-processing position; a calibration control device; a rotating table installed in the equipment room and electrically connected The calibration control device, wherein the rotary table is provided with a limit clamp and a signal supply port, the limit clamp is used to load the display unit to be corrected at the loading level, and the signal supply port is used to electrically connect the The correction control device is connected to the display unit to be corrected; the dark room is connected to the equipment room; and the image acquisition device is installed in the dark room and is electrically connected to the correction control device, wherein the image acquisition device is connected to the The image acquisition positions are relatively set; wherein, under the control of the correction control device, the rotating table is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the upper material position to the The image capture position is used for the image capture device to perform image capture of the display unit to be corrected, and is used to drive the display unit to be corrected loaded on the limit fixture to read the image from the image after the image capture is completed. The collection position is rotated to the post-processing position.

In an embodiment of the present application, the post-processing position includes a data generation and upload position and a data solidification position, the loading position, the image acquisition position, the data generation and upload position, and the data solidification position Are adjacent to each other and are located on the four sides of the rotating table; the rotating table is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the image capturing position after the image capturing is completed To the data generation and upload position to wait for the correction control device to generate correction coefficients and upload the correction coefficients to the display unit to be corrected, and the rotating table is used to drive the correction coefficient after uploading the correction coefficient The display unit to be corrected loaded on the limit fixture rotates from the data generation and upload position to the data solidification position, so as to wait for the display unit to be corrected to solidify the correction coefficient.

In an embodiment of the present application, the upper material level doubles as a lower material level, and the lower material level is a position where the display unit to be corrected is unloaded from the limit clamp.

In an embodiment of the present application, the number of the limit clamps is multiple, and the plurality of limit clamps are used to sequentially load the display unit to be corrected on the loading level, and after the loading is completed, the The rotating table is driven to rotate to the image collection position in sequence.

In an embodiment of the present application, the post-processing position is used for the display unit to be corrected loaded on the limit fixture to wait for the correction control device to generate a correction coefficient and upload the correction coefficient to the waiting Correcting the display unit and curing the correction coefficient; the equipment room also has a loading position, the loading position, the image acquisition position, the post-processing position and the unloading position are adjacent to each other and are located respectively The four sides of the rotating table.

In an embodiment of the present application, the image acquisition device includes a spectrometer and a camera; and the distance between the image acquisition device and the display unit to be corrected that is in the image acquisition position and loaded on the limit fixture is 4000 ± 100 mm.

In an embodiment of the present application, the calibration control device includes a calibration computer, a display controller, and a PLC controller, and the display controller, the PLC controller, and the image acquisition device are respectively electrically connected to the calibration computer , The PLC controller is electrically connected to the rotating table, the display controller is connected to the signal supply port, and the signal supply port is an Ethernet interface.

In an embodiment of the present application, the limit clamp includes: a support frame, including a first side and a second side disposed oppositely and connected between the first side and the second side The third side; the first guide member is provided on the first side; the second guide member is provided on the second side; the first positioning component is provided on the third side; and Two positioning components, both ends of which are respectively slidably connected to the first guide and the second guide, so that the second positioning component can slide along the first guide and the second guide to approach or Far away from the first positioning component for holding the display unit to be corrected together with the first positioning component.

In an embodiment of the present application, the first positioning assembly includes a plurality of positioning bases, and a first limiting member and a second limiting member arranged on each of the positioning bases; wherein, the plurality of positioning bases Are arranged at intervals on the third side; wherein, the first and second limiting members are arranged on the surface of the positioning base away from the third side, and the first limiting The positioning member and the second limiting member are arranged at right angles.

In an embodiment of the present application, the second positioning assembly includes: an elongated positioning member, two ends of which are respectively slidably connected to the first guide member and the second guide member; clamps arranged in pairs, They are respectively provided at the two ends of the elongated positioning member for operatively preventing or allowing the elongated positioning member to slide along the first guide member and the second guide member.

In an embodiment of the present application, the second positioning assembly further includes: a buffer member, which is arranged inside the elongated positioning member.

On the other hand, a display unit calibration method provided by an embodiment of the present application includes: (a) loading a display unit to be corrected at an upper material level; (b) rotating the display unit to be corrected from the upper material level to Image acquisition position; (c) performing image acquisition on the display unit to be corrected in the image acquisition position; and (d) after the image acquisition is completed, remove the display unit to be corrected from the image acquisition position Turn to the post-processing position to wait for the correction coefficient to be generated, upload the correction coefficient to the display unit to be corrected, and wait for the display unit to be corrected to solidify the correction coefficient.

In an embodiment of the present application, after the image acquisition is completed, the display unit to be corrected is rotated from the image acquisition position to the post-processing position to wait for the generation of correction coefficients and upload the correction coefficients to The display unit to be corrected and waiting for the display unit to be corrected to solidify the correction coefficient include: after the image acquisition is completed, rotating the display unit to be corrected from the image acquisition position to the post-processing position The data generation and upload bits in the data generation and upload position in order to wait for the generation of the correction coefficient and upload the correction coefficient to the display unit to be corrected; and after the upload is completed, the display unit to be corrected is generated from the data and The upload position is rotated to the data solidification position in the post-processing position to wait for the display unit to be corrected to solidify the correction coefficient. The pixel resolution of the display unit to be corrected is not greater than 480*330, and the loading level also serves as a loading level for unloading the display unit to be corrected.

In an embodiment of the present application, the display unit correction method further includes: after the curing, rotating the display unit to be corrected from the post-processing position to the unloading position for unloading the display to be corrected Unit; and the pixel resolution of the display unit to be corrected is greater than 480*330, and the lower material level and the upper material level are two adjacent positions.

In an embodiment of the present application, the performing image capturing on the display unit to be corrected at the image capturing position includes performing the image capturing at a distance of 4000±100 mm from the display unit to be corrected.

In the embodiments of the present application, by designing the structure of the display unit control system and collocation with a rotating table, the production efficiency can be effectively improved, and the work comfort of the operator can be improved.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

FIG. 1 is a schematic structural diagram of a display unit calibration system according to an embodiment of the application.

Fig. 2 is a schematic diagram of the three-dimensional structure of the equipment room with the rotating platform shown in Fig. 1.

3 is a schematic diagram of the three-dimensional structure of the rotating table shown in FIG. 2 when a plurality of display units to be corrected are loaded.

4 is an enlarged schematic diagram of the three-dimensional structure of the limit clamp shown in FIG. 3 when the display unit to be corrected is loaded.

FIG. 5 is a schematic diagram of the internal structure of the calibration control device in the display unit calibration system shown in FIG. 1.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

1 to 5, FIG. 1 is a schematic diagram of the overall structure of a display unit calibration system according to an embodiment of the application, FIG. 2 is a three-dimensional schematic diagram of the equipment room with a rotating table shown in FIG. 1, and FIG. 3 is FIG. 2 The three-dimensional structure diagram of the rotating table when a plurality of display units to be calibrated is loaded on the rotating table, FIG. 4 is an enlarged three-dimensional structure diagram of the limit clamp shown in FIG. 3 when the display unit to be calibrated is loaded, and FIG. 5 is the display unit correction shown in FIG. Schematic diagram of the internal structure of the correction control equipment in the system.

Specifically, as shown in FIGS. 1 to 5, the display unit calibration system 10 provided by the embodiment of the present application includes: an equipment room 11, a calibration control device 13, a rotating platform 15, a dark room 17 and an image acquisition device 19. The rotating table 15 is installed in the equipment room 11 and is electrically connected to the correction control equipment 13, the dark room 17 is connected to the equipment room 11, and the image acquisition equipment 19 is installed in the dark room 17 and electrically connected to the correction control equipment 13.

In view of the above, the equipment room 11, as shown in FIG. 1, has a loading position 111, an image acquisition position 113, and a post-processing position. The post-processing position is, for example, a double station, that is, the data generation and upload position 115 and the data solidification position 117; in this case, the upper material position 111 doubles as the unload position. Furthermore, the loading position 111, the image acquisition position 113, the data generation and upload position 115, and the data solidification position 117 are adjacent to each other and are located on the four sides of the rotating table 15 respectively.

For example, as shown in FIG. 5, the calibration control device 13 includes a calibration computer 131, a display controller 133, a PLC (Programmable Logic Controller) 135, a human-machine interface device 137, and a display 139. Among them, the calibration computer 131 is for example installed with calibration software and screen configuration software, such as NovaCLB calibration software and SmartLCT screen configuration software launched by Xi'an Nova Electronic Technology Co., Ltd.; and, the calibration computer 131 can be a calibration software and screen configuration software installed. The personal computer with software may also be two personal computers with calibration software and screen configuration software respectively installed. The display controller 133, the PLC controller 135 and the display 139 are electrically connected to the calibration computer 131, for example, through a DVI cable, an RS232 cable, and a DVI cable. The display controller 133 has, for example, sending card logic, which typically includes a video interface, a video decoder, a programmable logic device, an Ethernet physical layer transceiver (PHY), and an Ethernet interface connected in sequence. The display 139 is, for example, a liquid crystal display. Furthermore, the human-machine interface device 137 is, for example, electrically connected to the PLC controller 135 via an RS485 line, which for example includes input units such as buttons, keyboards and/or touch screens; the PLC controller 135 is connected to the rotating table 15 and accepts the control of the human-machine interface device 137 . In addition, as shown in FIG. 2, the human-machine interface device 137, for example, is fixed to the equipment room 11, which may be located on the side where the loading level 111 is located; for example, the display 139 is fixed to the equipment room 11, which may be located on the side where the loading level 111 is located. . It is worth mentioning that the calibration computer 131, the display controller 133 and the PLC controller in the calibration control device 13 can be installed in the equipment room 11, or in the dark room 17, or in other suitable locations.

The rotating table 15 is controlled by the PLC controller 135 of the calibration control device 13 in the equipment room 11 and can rotate, for example, in the counterclockwise direction shown by the arc arrow in FIG. 1. Furthermore, for example, as shown in FIG. 3, the rotating table 15 is provided with a plurality of limit clamps 151 and a plurality of signal supply ports 153. These limit clamps 151 and signal supply ports 153 are distributed on four sides of the rotating table 15, such as each side A limit clamp 151 and a pair of signal supply ports 153 are provided. The limit clamp 151 is used to load the display unit 20 to be corrected, the signal supply port 153 is used to connect the display controller 133 in the correction control device 13 to the display unit 20 to be corrected, and the signal supply port 153 is, for example, an RJ45 connector.

For example, as shown in FIG. 4, the limiting clamp 151 includes a supporting frame 1512, a guide 1514 a, a guide 1514 b, a lower positioning component 1516 and an upper positioning component 1518. Wherein, the support frame 1512 includes a left side 1512L and a right side 1512R arranged oppositely, and an upper side 1512T and a lower side 1512B arranged oppositely; the upper side 1512T and the lower side 1512B are respectively connected to the left side 1512L and Between 1512R on the right side. The guide 1514a is provided on the left side 1512L, and the guide 1514b is provided on the right side 1512R. The lower positioning assembly 1516 is arranged on the lower side 1512B, and both ends of the upper positioning assembly 1518 are slidably connected to the guide 1514a and the guide 1514b, so that the upper positioning assembly 1518 can slide along the guide 1514a and the guide 1514b to move closer to or away from the lower positioning The component 1516 is used to hold the display unit 20 to be corrected together with the lower positioning component 1516.

More specifically, the lower positioning assembly 1516 includes a plurality of (two are shown in FIG. 4 as an example) positioning bases 15162 and a limiting member 15164 and a limiting member 15166 provided on each positioning base 15162. Among them, a plurality of positioning bases 15162 are arranged at intervals on the lower side 1512B; the limiting member 15164 and the limiting member 15166 are arranged on the surface of the positioning base 15162 away from the lower side 1512B, and the limiting member 15164 and the limiting member 15166 are arranged at right angles It is beneficial to limit the display unit 20 to be calibrated, so that the display unit 20 to be calibrated can be sufficiently vertically fixed on the limit clamp 151, thereby ensuring the accuracy of subsequent image capture.

The upper positioning assembly 1518 includes, for example, a long positioning member 15181, the two ends of which are respectively slidably connected to the guide 1514a and the guide 1514b; a pair of clamps 15183 are respectively provided at both ends of the long positioning member 15181 to It is used to operably prevent or allow the elongated positioning member 15181 to slide along the guide member 1514a and the guide member 1514b. Furthermore, the upper positioning assembly 1518 preferably further includes: a buffer 15185, which is arranged on the inner side of the elongated positioning member 15181, so as to avoid direct contact and collision between the elongated positioning member 15181 and the display unit 20 to be corrected, causing the display unit to be corrected 20 edge damage. In addition, it is worth mentioning that a positioning pin is provided on the inner side of the elongated positioning member 15181, and the positioning pin penetrates the buffer member 15185 so as to cooperate with the pin hole on the display unit 20 to be corrected to achieve positioning.

Please refer to FIG. 1 again, the dark room 17 is located on the side of the image acquisition position 113 of the equipment room 11, and is used to provide a dark room environment. It is worth noting that because the darkroom 17 is longer, the darkroom 17 can be designed in multiple sections to facilitate transportation and maintenance. The dark room 17 is mainly used to place the image acquisition device 19, and usually, the dark room 17 is reserved with entrances and exits for easy maintenance.

The image acquisition device 19 is located at the end of the dark room 17 far away from the equipment room 11, which includes a spectrometer 191 and a camera 193 as shown in FIG. 5, and the spectrometer 191 and the camera 193 are respectively connected to the calibration computer 131 via a USB cable for data upload. Regarding the installation position of the image capture device 19 in the darkroom 17, preferably, the distance between the image capture device 19 and the display unit 20 to be corrected which is in the image capture position 113 and is loaded on the limit fixture 151 is set to 4000±100 mm.

To facilitate a clearer understanding of this embodiment, the working principle of the display unit correction system 10 and the flow of the display unit correction method will be described in detail below in conjunction with FIGS. 1 to 5.

Specifically, the display unit calibration system 10 of this embodiment designs a set of four stations (that is, the loading position 111, the image acquisition position 113, the data generation and upload position 115, and the data solidification position 117) to work simultaneously. Process, only one operator is required to input, and all work processes of the production line can be corrected. At the same time, relying on the close and orderly cooperation between one manual station (the upper material position 111, which also doubles as the lower material position) and three automatic stations (image acquisition position 113, data generation and upload position 115 and data solidification position 117), four Each station asynchronously processes their respective businesses, realizing the improvement of production line correction efficiency.

The upper material level 111, which doubles as the lower material level, is used to manually load the display unit 20 to be corrected to the limit clamp 151 of the rotating table 15 and remove the display unit to be corrected that has been corrected; place the display unit 20 to be corrected at the upper material level 111 After the loading is successful, manually control the buttons in the human-machine interface device 137 to trigger the PLC controller 135 to control the rotation of the rotating table 15 to rotate the display unit 20 to be corrected to the image acquisition position 113, and the correction computer 131 in the correction control device 13 receives After the display unit 20 to be corrected is in place, the image acquisition device 19 in the darkroom 17 is started to collect the picture displayed by the display unit 20 to be corrected to obtain the brightness and chromaticity data. At this time, the loading level 111 can continue to load and unload the display unit to be corrected; After the capture device 19 completes the screen capture, the calibration computer 131 automatically controls the rotation of the rotating table 15 via the PLC controller 135 to rotate the display unit 20 to be corrected to the data generation and upload position 115, and the image capture device 19 will continue to capture the newly loaded to be corrected The display screen of the display unit; after the data generation and upload bit 115 receives the display unit 20 to be corrected, the control computer 131 starts the data analysis process, and the brightness and chromaticity data collected by the image acquisition device 19 is calculated to generate the correction of the display unit 20 to be corrected After the correction coefficient upload is completed, the PLC controller 135 is automatically triggered to control the rotation of the rotating table 15 to rotate the display unit 20 to be corrected to the data solidification position 117; the data solidification position 117 is received After the display unit 20 to be calibrated, the control computer 131 starts the correction coefficient curing function, that is, controls the display unit 20 to be corrected to save the correction coefficients to the non-volatile memory of the display unit 20 to be corrected, and then solidifies the correction coefficients to be corrected. The display unit 20 rotates to the upper material level 111 which also serves as the lower material level for unloading, and the point-by-point brightness or point-by-point brightness and chromaticity correction process of the display unit 20 to be corrected is completed. The display unit 20 to be corrected here is, for example, an LED display box configured with a receiving card, and the receiving card typically includes an Ethernet interface, a network transformer, an Ethernet physical layer transceiver, a programmable logic device, and an LED light connected in sequence. Board interface: There are typically multiple LED light board interfaces, which are connected to multiple LED light boards on the LED display box through a flat cable.

It is worth mentioning that in the aforementioned single-station loading and unloading workflow, it only needs an operator to load and unload the display unit 20 to be corrected at the loading position 111 that also serves as the unloading position, and other image acquisition positions 113, data generation and The three stations of uploading position 115 and data solidification position 117 adopt automatic control mode. This single-station loading and unloading workflow is suitable for scenarios where the pixel resolution of the display unit 20 to be corrected is not 480*330, and the production line correction efficiency is required to be higher than 50 pixels/hour, but the embodiment of the application does not take this as limit.

In summary, the above-mentioned embodiments of the present application may have the following advantages: (i) the entire production line calibration process can be completed by only one operator; (ii) the darkroom environment required for the calibration process is separated from the operator’s working environment , It can not only improve the operator’s work comfort, but also effectively avoid the light interference of the working computer screen. At the same time, it can prevent the operator from touching the image acquisition device in the process of loading and unloading the display unit to be corrected to affect the correction effect; and (3) the entire production The line correction process is divided into four sub-processes, which can be performed in parallel, which greatly improves the efficiency of production line correction.

In addition, in other embodiments, the double-station loading and unloading workflow can also be used. Taking Figure 1 as an example, 111 is used as the loading position, 113 is used as the image collection position, and 115 is used as the post-processing position for data generation, upload and Curing (that is, the post-processing position is a single station), and 117 is used as the unloading position. In other words, the double-station loading and unloading process means that there is an operator at the loading position 111 who is responsible for loading the display unit to be corrected, the image acquisition position 113 and the post-processing position 115 are in automatic control mode, and the loading position 117 has an operator The operator is responsible for uninstalling the display unit that has been calibrated. The working process of this kind of double-station loading and unloading will be described below in conjunction with FIGS. 1 to 5.

Specifically, the loading level 111 is used by the operator to manually load the display unit 20 to be corrected to the limit clamp 151 of the rotating table 15. After the display unit 20 to be corrected is successfully loaded at the loading level 111, the man-machine interface device 137 is manually controlled The button in the control panel triggers the PLC controller 135 to control the rotation of the rotating table 15 to rotate the display unit 20 to be corrected to the image acquisition position 113. The correction computer 131 in the correction control device 13 receives the signal to be corrected for the display unit 20 and starts The image capture device 19 in the darkroom 17 captures the screen displayed by the display unit 20 to be corrected to obtain the brightness and chromaticity data. When the blanking position 117 is completed and the image capture device 19 completes the screen capture, the correction computer 131 is automatically controlled by the PLC controller 135 The rotating table 15 rotates to rotate the display unit to be corrected 20 to the post-processing position 115, the image capture device 19 will continue to collect the display screen of the newly loaded display unit to be corrected, and the display to be corrected can be loaded at the loading position 111 at this time Unit; after the post-processing bit 115 receives the display unit 20 to be corrected, the control computer 131 starts the data analysis process, calculates the brightness and chromaticity data collected by the image acquisition device 19 to generate the correction coefficient of the display unit 20 to be corrected, and starts the correction coefficient Upload to the display unit 20 to be calibrated, and start the correction coefficient curing function after uploading the correction coefficients, that is, control the display unit 20 to be calibrated to save the correction coefficients to the non-volatile memory of the display unit 20 to be calibrated; then, the calibration computer 131 The PLC controller 135 is automatically triggered to control the rotation of the rotating table 15 to rotate the display unit 20 to be corrected after the correction coefficient has been solidified to the unloading level 117, and another operator will manually unload it. At this point, the point-by-point brightness of the display unit 20 to be corrected is completed. Point-by-point brightness and chromaticity correction process.

It can be seen from the above that the double-station loading and unloading process of this embodiment can overcome the aforementioned single-station loading and unloading process, which can maximize the efficiency of production line correction, but will cause the problem of heavier workload of the operator. It is suitable for production line correction. A scene where the efficiency requirement is not high (less than 50 pixels/hour) or the pixel resolution of the display unit to be corrected is greater than 480*330, but the embodiment of the present application is not limited to this.

In addition, it is worth mentioning that the foregoing embodiment has proposed a technical solution in which the post-processing position is a double station or a single station, but the embodiment of the application is not limited to this, and the post-processing position can be provided with more than two stations. , Or the equipment room can also be designed as three stations when the post-processing position is a single station, that is, the upper and lower material position, the image acquisition position and the post-processing position.

In addition, it can be understood that the foregoing embodiments are only exemplary descriptions of the present application, and the technical solutions of the various embodiments can be combined and matched arbitrarily provided that the technical features are not conflicting, the structure is not contradictory, and the purpose of the invention of the present application is not violated. use.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and/or method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units/modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or modules may be Combined or can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The unit/module described as a separate component may or may not be physically separated, and the component displayed as a unit/module may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple channels. On the network unit. Some or all of the units/modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

A display unit calibration system, characterized in that it comprises:

Equipment room, with loading position, image acquisition position and post-processing position;

Calibration control equipment;

A rotary table installed in the equipment room and electrically connected to the calibration control equipment, wherein the rotary table is provided with a limit fixture and a signal supply port, and the limit fixture is used to load the display unit to be corrected on the upper material level , And the signal supply port is used to electrically connect the correction control device to the display unit to be corrected;

The dark room is connected to the equipment room; and

An image acquisition device installed in the dark room and electrically connected to the correction control device, wherein the image acquisition device is arranged relative to the image acquisition position;

Wherein, under the control of the correction control device, the rotating table is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the loading position to the image acquisition position for the The image capture device performs image capture on the display unit to be corrected, and is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the image capture position to the rear after the image capture is completed. Processing bit.
The display unit calibration system of claim 1, wherein the post-processing position includes a data generation and upload position and a data solidification position, the loading position, the image acquisition position, and the data generation and upload position Bit and the data solidification bit are adjacent to each other and are respectively located on four sides of the rotating table;

The rotating table is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the image acquisition position to the data generation and upload position after the image acquisition is completed, so as to wait for the correction The control device generates a correction coefficient and uploads the correction coefficient to the display unit to be corrected, and

The rotating table is used to drive the display unit to be corrected loaded on the limit clamp to rotate from the data generation and upload position to the data solidification position after uploading the correction coefficient is completed, so as to wait for the The display unit to be corrected solidifies the correction coefficient.
3. The display unit calibration system of claim 2, wherein the upper material level doubles as a lower material level, and the lower material level is a position where the display unit to be corrected is unloaded from the limit clamp.
The display unit calibration system according to claim 1, wherein the number of the limit clamps is multiple, and the plurality of limit clamps are used to sequentially load the display unit to be corrected on the loading level, After the loading is completed, the rotating table is driven to rotate to the image acquisition position in sequence.
The display unit calibration system according to claim 1, wherein the post-processing position is used for the display unit to be corrected loaded on the limit fixture to wait for the correction control device to generate a correction coefficient and upload the The correction coefficient is connected to the display unit to be corrected and the correction coefficient is solidified; the equipment room also has a loading position, the loading position, the image acquisition position, the post-processing position, and the loading position They are adjacent to each other and are respectively located on four sides of the rotating platform.
The display unit calibration system according to claim 1, wherein the image acquisition device includes a spectrometer and a camera; and the image acquisition device is in the image acquisition position and is loaded on the limit fixture. The distance of the display unit to be corrected is 4000±100 mm.
The display unit calibration system of claim 1, wherein the calibration control device includes a calibration computer, a display controller, and a PLC controller, and the display controller, the PLC controller, and the image acquisition device The calibration computer is electrically connected, the PLC controller is electrically connected to the rotating table, the display controller is connected to the signal supply port, and the signal supply port is an Ethernet interface.
The display unit calibration system according to claim 1, wherein the limit clamp comprises:

The supporting frame includes a first side and a second side that are arranged oppositely, and a third side connected between the first side and the second side;

The first guide is arranged on the first side;

The second guide is arranged on the second side;

The first positioning component is arranged on the third side; and

The second positioning component, both ends of which are respectively slidably connected to the first guide and the second guide, so that the second positioning component can slide along the first guide and the second guide to approach Or away from the first positioning component, for holding the display unit to be corrected together with the first positioning component.
8. The display unit calibration system according to claim 8, wherein the first positioning assembly comprises a plurality of positioning bases and a first limiting member and a second limiting member arranged on each of the positioning bases;

Wherein, the multiple positioning bases are arranged on the third side at intervals;

Wherein, the first limiting member and the second limiting member are arranged on the surface of the positioning base away from the third side, and the first limiting member and the second limiting member Arrange at right angles.
The display unit calibration system according to claim 8, wherein the second positioning component comprises:

A long-shaped positioning member, both ends of which are respectively slidably connected to the first guide member and the second guide member;

Clamps arranged in pairs are respectively arranged at the two ends of the elongated positioning member for operably preventing or allowing the elongated positioning member to move along the first guide member and the first guide member. The two guides slide.
10. The display unit calibration system according to claim 10, wherein the second positioning component further comprises: a buffer member, which is arranged inside the elongated positioning member.
A method for calibrating a display unit is characterized by comprising:

Load the display unit to be corrected at the loading position;

Rotating the display unit to be corrected from the loading position to the image acquisition position;

Perform image capture on the display unit to be corrected in the image capture position; and

After the image acquisition is completed, the display unit to be corrected is rotated from the image acquisition position to the post-processing position to wait for the generation of correction coefficients, upload the correction coefficients to the display unit to be corrected, and wait for the display unit to be corrected. The correction display unit solidifies the correction coefficient.
The display unit calibration method of claim 12, wherein after the image acquisition is completed, the display unit to be corrected is rotated from the image acquisition position to the post-processing position to wait for the generation of the correction coefficient , Uploading the correction coefficient to the display unit to be corrected and waiting for the display unit to be corrected to solidify the correction coefficient, including:

After the image acquisition is completed, the display unit to be corrected is rotated from the image acquisition position to the data generation and upload position in the post-processing position, so as to wait for the generation of the correction coefficient and upload the correction coefficient to The display unit to be corrected; and

After the upload is completed, rotate the display unit to be corrected from the data generation and upload position to the data solidification position in the post-processing position to wait for the display unit to be corrected to solidify the correction coefficient; and

The pixel resolution of the display unit to be corrected is not greater than 480*330, and the loading level also serves as a loading level for unloading the display unit to be corrected.
The display unit calibration method of claim 12, further comprising: after the curing, rotating the display unit to be corrected from the post-processing position to the unloading position for unloading the to-be-corrected display unit Display unit; and the pixel resolution of the display unit to be corrected is greater than 480*330, and the lower material level and the upper material level are two adjacent positions.
The method for calibrating a display unit according to claim 12, wherein the image capturing of the display unit to be corrected in the image capturing position comprises a position that is 4000±100 mm away from the display unit to be corrected. Perform the image acquisition.